CN109677230B - New energy automobile reservation control method and system - Google Patents
New energy automobile reservation control method and systemDownload PDFInfo
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- CN109677230B CN109677230BCN201810142684.7ACN201810142684ACN109677230BCN 109677230 BCN109677230 BCN 109677230BCN 201810142684 ACN201810142684 ACN 201810142684ACN 109677230 BCN109677230 BCN 109677230B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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Abstract
Description
Technical Field
The invention relates to a new energy automobile reservation control method and system.
Background
In the prior art, before a vehicle runs in winter or summer, a driver needs to operate a mechanical switch or a knob or a key to open and close the heating or cooling function of an air conditioner in a cab so as to adjust the temperature in the vehicle and meet the requirement of comfort of passengers. In order to realize the opening and closing of the air conditioner, a driver needs to get on the vehicle for operation, under the extreme temperature condition in winter or summer, the driver needs to consume excessive time and consume a large amount of electric energy stored in the whole vehicle to adjust the temperature of a passenger compartment, and the comfort of the driver and passengers is poor in the initial stage of the opening of the air conditioner. In addition, when the temperature is relatively low in winter or relatively high in summer, the temperature of the power battery is generally relatively low or relatively high during and after the vehicle is placed or charged for a long time. In order to ensure the normal running of the automobile and the safety protection of the power battery, the power battery needs to be heated or cooled. When the temperature of the power battery reaches a certain value, the power can be normally output, and the power requirement when the whole vehicle runs is met.
In the initial running stage of the vehicle, when the temperature of the power battery is too high or too low, a long time is needed for raising or lowering the temperature of the battery to a normal temperature so as to realize maximum power output. Before the temperature of the battery does not reach the normal temperature, the problem of insufficient dynamic property of the whole vehicle can occur, so that the driving feeling of a driver is influenced, and potential safety hazards are brought. Meanwhile, the heating or cooling device of the power battery and the air conditioner for adjusting the temperature in the passenger compartment of the whole vehicle need to consume the electric energy stored by the whole vehicle. When the whole vehicle stores electric energy for a certain time, the driving range of the whole vehicle is shortened.
The Chinese patent application with the application publication number of CN106945483A and the name of hybrid vehicle remote preheating system and remote preheating method provides a hybrid vehicle remote preheating system and remote preheating method. The method is not considered fully, and has the following risks and problems: 1. when the air conditioner works, the electric energy of the power battery is directly used, if the electric quantity of the power battery is low, the battery can be over-discharged, and the rated capacity of the battery can be over-quickly attenuated after long-term use, so that irreversible damage is generated. 2. The battery management system directly controls the PTC heater, and whether the PTC heater is used to heat the battery or the passenger compartment, there is a risk of the core body temperature being too high, which may cause the spontaneous combustion fire of the entire vehicle. 3. The method only refers to the PTC heater, only can play a heating function, and cannot cool the battery body, so the method is incomplete and lacks the battery cooling function. 4. The method only aims at hybrid vehicles, and does not relate to pure electric vehicles, so that the method has the problems of too narrow adaptability and under consideration of universality. 5. When the reservation request instruction is completed by using the mobile user terminal, the reservation can not be realized in the area with poor signals or when the base station server has problems. More importantly, the above prior patent application does not perform corresponding reservation control according to the actual state of the vehicle, and the reliability of the reservation control is poor.
Disclosure of Invention
The invention aims to provide a reservation control method for a new energy automobile, which is used for solving the problem that the reliability of reservation control is poor because corresponding reservation control is not carried out according to the actual state of the automobile in the prior art. The invention provides a new energy automobile reservation control system.
In order to achieve the above object, the present invention includes the following technical solutions.
The first method scheme is as follows: the scheme provides a new energy automobile reservation control method, which comprises a reservation control process of a vehicle charging state and/or a reservation control process of a vehicle non-charging state,
the reservation control process of the vehicle state of charge includes the following processes: in the vehicle charging process, after a vehicle receives a reservation instruction and the state of charge of a vehicle power battery reaches a first set threshold value, controlling a vehicle-mounted air conditioning system to be started, and controlling a charging system to supply power to the vehicle-mounted air conditioning system;
the reservation control process of the vehicle non-charging state includes the following processes: after the vehicle receives the reservation instruction, if the state of charge of the vehicle power battery is larger than or equal to a second set threshold value, the vehicle air conditioning system is controlled to be started, the power battery supplies power for the vehicle air conditioning system, and when the starting time of the vehicle air conditioning system reaches the air conditioning reservation duration information in the reservation instruction, the vehicle air conditioning system is controlled to be stopped.
Firstly, the reservation control method provided by the scheme is suitable for a new energy vehicle with a power battery, namely a hybrid vehicle and a pure electric vehicle. In addition, different control is performed according to different states of the vehicle, reservation control is performed in a control process related to a charging state in the charging state, and reservation control is performed in a control process related to a non-charging state in the non-charging state, so that control is performed in a proper reservation control process according to the actual state of the vehicle, and the reliability of reservation control is improved. In the charging process, the output electric energy of the charging system is used as the electric energy of the vehicle-mounted air conditioning system, and when the vehicle-mounted air conditioning system runs, the electric energy provided by the charging system is used, so that the over-discharge problem of the power battery can be avoided; and during the operation of the vehicle-mounted air conditioning system, the output power of the charging system is larger than the real-time consumed power of the vehicle-mounted air conditioning system, the output power is divided into two parts, one part is used for supplying power to the vehicle-mounted air conditioning system, and the other part is used for charging the power battery. Moreover, under the non-charging condition, only when the residual electric quantity of the power battery is allowed, the reservation can be effective, and the vehicle-mounted air conditioning system can be started, so that the problem of over-discharge of the power battery is avoided, and the safety of the power battery is ensured. In addition, the vehicle-mounted air conditioning system is used for increasing or reducing the temperature of the carriage, comfort is guaranteed, the PTC heater is not used, the safety of the whole vehicle can be guaranteed, and the power battery can generate heat in the charging process to guarantee the temperature of the power battery. In addition, at the initial running stage of the vehicle after charging is finished, the vehicle-mounted air conditioning system enables the temperature in the vehicle to reach the set temperature, the electric energy of the whole vehicle is not consumed to change the temperature of a compartment, the driving range of the whole vehicle can be prolonged, and the comfortable environment in the vehicle can be ensured. Therefore, the reservation control method provided by the scheme can realize reservation control on the vehicle, and can realize that the temperature of the carriage reaches a set value in advance regardless of environmental conditions even under the environmental conditions of severe cold or high temperature, so that the comfort of drivers and passengers is ensured, and the charge state of the power battery is also ensured, and the vehicle can meet the driving state in advance. The method is not only suitable for the high-cold area, but also suitable for the high-temperature area, and has the advantages of more complete method, higher reliability and less risk. Meanwhile, the reservation control method takes the charge state of the power battery and the safety protection of the vehicle as the key points to perform reservation control.
The second method comprises the following steps: on the basis of the first method scheme, the reservation instruction comprises the set temperature of the compartment, and when the vehicle-mounted air conditioning system is started, whether the vehicle-mounted air conditioning system works in a cooling mode or a heating mode is judged according to the height relation between the set temperature of the compartment and the ambient temperature.
The third method scheme is as follows: on the basis of the second method scheme, in the reservation control process of the vehicle charging state, the reservation instruction further comprises setting departure time, setting time when the actual temperature of the compartment changes to the set temperature of the compartment as first time, setting the actual state of charge of the power battery as first state of charge when the actual temperature of the compartment changes to the set temperature of the compartment, and obtaining the charging power required by the power battery according to the time difference between the set departure time and the first time and the difference value between the first state of charge and the full state of charge of the power battery, so that the output power of the charging system is controlled to be the sum of the charging power required by the power battery and the power consumed by the vehicle-mounted air conditioning system to maintain the set temperature of the compartment.
The charging power required by the power battery is obtained according to the time difference with the set departure time and the power battery state of charge difference, and then when the power battery is charged by the obtained charging power, the state of charge of the power battery is just in a full state when the set departure time is reached, so that the output power of the charging system is controlled to be the sum of the obtained charging power and the power consumed by the vehicle-mounted air conditioning system to maintain the set temperature of the carriage, the state of charge of the power battery is just in the full state when the set departure time is reached, and the vehicle-mounted air conditioning system is ensured to just maintain the temperature of the carriage at the set temperature. Therefore, when the set departure time arrives, the vehicle just completes charging, and the temperature in the compartment is kept at the set temperature, so that sufficient electric energy and normal operation comfort during vehicle operation are ensured.
The method scheme is as follows: on the basis of the third method scheme, in the reservation control process of the vehicle charging state, when the actual temperature of the carriage is the set temperature of the carriage and the power battery is in a full-charge state, the vehicle-mounted air conditioning system and the charging system are controlled to be closed.
The method scheme five: on the basis of any one of the first to the fourth method schemes, a reservation instruction is sent to the vehicle through the vehicle-mounted input terminal or the user mobile terminal.
When a driver is located at a vehicle position, the driver CAN directly input a reservation instruction to the vehicle controller by using a vehicle-mounted input terminal installed on the vehicle and a vehicle CAN network, so that the driver CAN conveniently operate. And when the distance between the driver and the vehicle is far, the reservation instruction is remotely input to the whole vehicle through the user mobile terminal, the mobile network and the mobile network server, so that the remote reservation control of the vehicle is realized, and the whole vehicle can also send reservation completion data to the user mobile terminal in a short message or voice mode to complete the reservation reminding.
The first scheme of the system is as follows: the scheme provides a reservation control system of a new energy automobile, which comprises a reservation control module, wherein the reservation control module comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, the processor realizes a reservation control process of a vehicle charging state and/or a reservation control process of a vehicle non-charging state when executing the program,
the reservation control process of the vehicle state of charge includes the following processes: in the vehicle charging process, after a vehicle receives a reservation instruction and the state of charge of a vehicle power battery reaches a first set threshold value, controlling a vehicle-mounted air conditioning system to be started, and controlling a charging system to supply power to the vehicle-mounted air conditioning system;
the reservation control process of the vehicle non-charging state includes the following processes: after the vehicle receives the reservation instruction, if the state of charge of the vehicle power battery is larger than or equal to a second set threshold value, the vehicle air conditioning system is controlled to be started, the power battery supplies power for the vehicle air conditioning system, and when the starting time of the vehicle air conditioning system reaches the air conditioning reservation duration information in the reservation instruction, the vehicle air conditioning system is controlled to be stopped.
And a second system scheme: on the basis of the first system scheme, the reservation instruction comprises the set temperature of the compartment, and when the vehicle-mounted air conditioning system is started, whether the vehicle-mounted air conditioning system works in a cooling mode or a heating mode is judged according to the height relation between the set temperature of the compartment and the ambient temperature.
And a third system scheme: on the basis of the second system scheme, in the reservation control process of the vehicle charging state, the reservation instruction further comprises setting departure time, setting time when the actual temperature of the compartment changes to the set temperature of the compartment as first time, setting the actual state of charge of the power battery as first state of charge when the actual temperature of the compartment changes to the set temperature of the compartment, and obtaining the charging power required by the power battery according to the time difference between the set departure time and the first time and the difference value between the first state of charge and the full state of charge of the power battery, so that the output power of the charging system is controlled to be the sum of the charging power required by the power battery and the power consumed by the vehicle-mounted air conditioning system for maintaining the set temperature of the compartment.
The scheme of the system is as follows: on the basis of the third system scheme, in the reservation control process of the vehicle charging state, when the actual temperature of the carriage is the set temperature of the carriage and the power battery is in a full-charge state, the vehicle-mounted air conditioning system and the charging system are controlled to be closed.
And a fifth system scheme: on the basis of any one of the first to the fourth system schemes, a reservation instruction is sent to the vehicle through the vehicle-mounted input terminal or the user mobile terminal.
Drawings
FIG. 1 is a hardware system diagram of a first embodiment of a method for implementing reservation control of a new energy vehicle;
fig. 2 is a schematic diagram of a hardware system for implementing the second method for controlling the reservation of the new energy vehicle.
Detailed Description
Embodiment one of reservation control method for new energy automobile
For convenience in explaining the new energy automobile reservation control method provided by the embodiment, an applicable vehicle is a hybrid electric vehicle or a pure electric vehicle. A vehicle reservation system implementing the reservation control method is given below, and as shown in fig. 1, the system includes a reservation input terminal, a vehicle control unit, an air conditioning system controller, an electrical system controller, a battery management system, and a charging system. The reservation input terminal is arranged on the vehicle and is a vehicle-mounted input terminal, and a driver can directly input a reservation instruction to the whole vehicle through the reservation input terminal; the battery management system is a device for monitoring the state of the vehicle power battery in real time; the vehicle controller is an intelligent device for controlling all parts of the vehicle to work coordinately; the electric system controller is an intelligent device for transmitting and managing the electric energy of the vehicle; the air conditioning system controller is used for controlling the vehicle-mounted air conditioning system; the charging system is used for charging the whole vehicle.
The reservation input terminal transmits the received reservation instruction to the vehicle control unit, the vehicle control unit sends the reservation instruction to the air conditioning system controller, the electric system controller and the battery management system through a vehicle CAN network, the air conditioning system, the controller, the electric system controller and the battery management system send CAN messages of working states in real time, and the battery management system controls the charging system according to the setting of the reservation instruction, so that the charging process is ensured to be orderly and controllable. Of course, when the charging system is operating, a reservation control process of the vehicle charging state is performed, and when the charging system is stopped, a reservation control process of the vehicle non-charging state is performed.
The invention is characterized in that the reservation control method of the new energy automobile is not limited to a system for real-time control method, and any other system except the system provided by the figure 1 is within the protection scope of the invention as long as the reservation control method is implemented.
When the new energy automobile is in a static state, the new energy automobile has two conditions of a charging state and a non-charging state, so the new energy automobile reservation control method comprises a reservation control process of the charging state of the automobile and a reservation control process of the non-charging state of the automobile. Of course, as another embodiment, the new energy vehicle reservation control method may further include only one of a reservation control process of a vehicle charge state and a reservation control process of a vehicle non-charge state.
The following describes a reservation control process of a vehicle charge state and a reservation control process of a vehicle non-charge state, respectively, with reference to the system shown in fig. 1.
Reservation control process of vehicle state of charge:
and the vehicle charging responsible person or the driver submits the reservation instruction to the vehicle control unit by using the reservation input terminal and confirms that the reservation instruction is valid. The data in the reservation command includes a set departure time (hour, minute) and a passenger compartment, i.e., a cabin set temperature (deg.c).
During the charging period of the vehicle, the battery management system sends a charging effective signal to the vehicle controller, and the vehicle enters a reserved working mode. The battery management system can calculate the time length required by charging completion according to the set departure time in the reservation instruction, the current residual electric quantity of the power battery and the charging power, ensure that the charging of the vehicle is completed before the whole vehicle is sent out, and ensure that the temperature of the power battery reaches a preset value.
In the charging process, the state of charge of the power battery is gradually increased, when the state of charge of the power battery reaches a first set threshold value, the electric quantity of the power battery is high, the battery management system sends a vehicle-mounted air conditioning system (hereinafter, referred to as an air conditioner) starting instruction to the air conditioning system controller, and the air conditioner is started. When the air conditioner is started, the air conditioning system controller compares the detected ambient temperature with the set temperature of the compartment to determine the specific operation mode (whether the air conditioner operates in the cooling mode or the heating mode) of the air conditioner. The electric system controller is connected with an electric loop of the air conditioner immediately after receiving an air conditioner starting command from the battery management system, and supplies electric energy from the charging system to the air conditioner, namely, the charging system also supplies electric energy to the air conditioner while charging the power battery. Of course, the electrical system controller immediately shuts off the electrical circuit of the air conditioner if it receives a command to shut down the air conditioner.
During the operation of the air conditioner, the air conditioning system controller transmits consumed real-time power to the battery management system, the battery management system determines the output power of the charging system according to the real-time consumed power of the air conditioner and requests the charging system to output a proper amount of power, and the requirements are as follows: the output power of the charging system is larger than the real-time consumed power of the air conditioner, and the difference value between the output power of the charging system and the real-time consumed power of the air conditioner is set according to actual requirements. Then, the part of the consumed power in the output power of the charging system is used for supplying power to the air conditioner, and the part of the output power minus the consumed power is used as the charging power of the power battery to charge the power battery, so that the power battery can be charged with small power continuously while the use of the air conditioner is satisfied. Therefore, during charging, the air conditioner uses electric energy from the charging system and does not consume electric energy from the power battery.
After the air conditioner is started, the actual temperature of the compartment gradually changes to the compartment set temperature, for convenience of description, the time (or referred to as time) when the actual temperature of the compartment changes to be just equal to the compartment set temperature is set as a first time, and the actual state of charge of the power battery when the actual temperature of the compartment changes to be just equal to the compartment set temperature is set as a first state of charge, so that the charging power required by the power battery can be calculated according to the time difference between the set departure time and the first time and the difference value between the first state of charge and the full state of charge (namely, the SOC is 100%), namely the charging power required by the power battery is obtained, and the state of charge of the power battery is just the full state, namely, the power battery is just fully charged when the departure time is set.
The calculation formula of the charging power P required by the power battery is as follows:
therein, SOC1And in the first state of charge, delta t is the time difference between the set departure time and the first time, and Q is the rated capacity of the power battery.
After the actual temperature of the compartment is equal to the set temperature of the compartment, the consumed power of the air conditioner changes, and the previous power is changed into the power consumed for maintaining the set temperature of the compartment, so that the output power of the charging system is controlled by the battery management system to be the sum of the obtained required charging power and the power consumed by the air conditioner for maintaining the set temperature of the compartment, and in this way, the power battery is just fully charged when the set departure time arrives, and the temperature of the compartment can be ensured to be stabilized at the set temperature.
When the temperature of the compartment reaches the set temperature and the state of charge of the power battery reaches 100%, the battery management system sends an air conditioner closing instruction to the air conditioner system controller through the CAN message, and the air conditioner is closed. Meanwhile, the battery management system requests the charging system to be closed, and the charging system is actively closed after receiving a closing request instruction. So far, the whole charging process is completed.
The battery management system sends a reservation completion instruction to the vehicle control unit, and the vehicle control unit sends a closing instruction to the battery management system, the air conditioning system controller and the electric system controller.
So far, the whole reservation process is completed.
The reservation control process of the vehicle non-charging state comprises the following steps:
and in the non-charging period of the vehicle, the vehicle controller receives a reservation instruction from the reservation input terminal, and the vehicle enters a reservation working mode. The vehicle control unit wakes up the battery management system, and the battery management system sends the residual electric quantity of the current power battery to the vehicle control unit.
If the state of charge of the vehicle power battery is larger than or equal to a second set threshold value, indicating that the residual electric quantity of the power battery meets the use requirement of the air conditioner, the reservation instruction is effective; on the contrary, if the residual capacity of the power battery cannot meet the use requirement of the air conditioner, the reservation instruction is invalid, and risk prompt is carried out.
When the reservation instruction is effective, the vehicle control unit sends information such as the set temperature of the carriage, the set departure time and the reserved time length of the air conditioner to the air conditioning system controller through the CAN message, and the air conditioner is started and is in an automatic running mode. The air conditioning system controller compares the detected ambient temperature with a cabin set temperature to determine the operating state of the air conditioner (whether it is operating in a cooling mode or a heating mode).
And after receiving an air conditioner starting command from the vehicle control unit, the electric system controller immediately switches on an electric loop of the air conditioner and provides electric energy from the power battery to the air conditioner. Of course, the electrical system controller may shut off the electrical circuit of the air conditioner immediately after receiving the command to shut down the air conditioner.
When the starting time of the air conditioner reaches the preset time length, the vehicle control unit sends an air conditioner closing instruction to the air conditioning system controller, and the air conditioner is closed.
In the control process, if the air conditioner needs to be turned off in advance, a driver can directly send out a reservation canceling instruction through the reservation input terminal.
And the vehicle control unit sends the reservation completion data to the battery management system, the air conditioning system controller and the electric system controller through the CAN message to send a closing instruction.
So far, the whole reservation process is completed.
In combination with the above two control processes, the following respectively give corresponding application examples.
Application example of the reservation control process of the vehicle charge state:
the first step is as follows: and the driver sends the reservation instruction to the vehicle control unit through the reservation input terminal.
Assume that the set departure time in the reservation order is 17:30, the set temperature of the car is 21 ℃, and assume that the current time is 9: 30.
The second step is that: and the vehicle control unit sends the set departure time, the set temperature of the carriage and the current time to the air conditioning system controller and the battery management system through the CAN message.
The third step: the battery management system identifies the current residual electric quantity and charging power of the power battery, assumes that the state of charge is 30% and the charging power is 100kw, and calculates the charging time of the power battery to be 8h according to the current time and the set departure time, the charging process is started, and the vehicle is normally charged.
It is assumed that the air conditioner is turned on when the state of charge of the power battery reaches 90%. Before the state of charge reaches 90%, the battery is charged according to normal charging power until the state of charge reaches 90% of electric quantity.
The fourth step: assuming a current time of 16:00, the state of charge reaches 90%.
The battery management system sends an air conditioner starting instruction to the air conditioner system controller and the electric system controller, and the air conditioner is started. When an ambient temperature sensor of the air conditioner detects that the current ambient temperature is 32 ℃, the set temperature of the carriage is 21 ℃ and is lower than the ambient temperature, the air conditioner works in a refrigeration mode, and the air conditioner starts to normally run.
And after receiving an air conditioner starting command from the vehicle control unit, the electric system controller immediately switches on an electric loop of the air conditioner and provides electric energy from the charging system to the air conditioner.
The fifth step: the air conditioning system controller sends the real-time power consumed by the air conditioner to the battery management system, such as 10kw real-time power.
The output power requested by the battery management system to the charging system is 12kw (10kw +2kw), 10kw is consumed by the air conditioner, 2kw is used for continuing to charge the power battery, and the state of charge of the power battery continues to increase.
And a sixth step: assuming that the temperature of the compartment reaches 21 ℃ after the air conditioner is started to operate for 45min, the air conditioner continues to work to maintain the temperature of the compartment. The current time when the temperature of the compartment reaches the set temperature is 16:45(16:00+45min), the state of charge of the power battery is 93%, and the time for completing the reservation is 45min (16: 45-17: 30).
The seventh step: assuming that the real-time power consumed by the air conditioner to maintain the temperature of the cabin is 5kw, the battery management system calculates that the required charging power is 60kw when the battery state of charge reaches 100% at 17:30, and then the output power requested by the battery management system to the charging system is 65kw (60kw +5 kw).
Eighth step: at 17:30, the state of charge of the power battery just reaches 100%, and the cabin temperature is maintained at 21 ℃. And the battery management system sends a battery charging completion instruction to the vehicle control unit.
The battery management system requests the charging system to be closed, and after the charging system receives a closing request instruction, the system is closed and does not charge the power battery any more. And the vehicle control unit sends an air conditioner closing instruction to the air conditioning system controller, and the air conditioner is turned off. The electric system controller cuts off the electric loop of the air conditioner immediately after receiving the command of closing the air conditioner. And the vehicle control unit sends a closing instruction to the electric system controller and the battery management system.
And the charging process is finished, and the whole reservation process is finished.
Application example of reservation control process of vehicle non-charging state:
the first step is as follows: and in the non-charging period of the vehicle, the vehicle controller receives a reservation instruction from the reservation input terminal, judges that the vehicle is in a non-charging reservation mode, and enables the vehicle to enter a reservation working mode.
Assume that the set departure time in the reservation order is 17:30, the set temperature of the car is 21 ℃, and assume that the current time is 9: 30.
The second step is that: the vehicle control unit wakes up the battery management system, and the battery management system sends the current residual power of the power battery to the vehicle control unit.
If the residual electric quantity of the power battery meets the use requirement of the air conditioner, the reservation instruction is effective. Such as: assuming that the residual electric quantity of the current power battery is 60%, the use requirement of the air conditioner is met, and the reservation instruction is effective; assuming that the residual electric quantity of the current power battery is 20%, the use requirement of the air conditioner cannot be met, and the forced opening of the air conditioner can cause over-discharge of the power battery, the reservation instruction is invalid, and a reservation invalid prompt is sent to a user.
The third step: when the reservation instruction is effective, the vehicle control unit sends information such as the set temperature of the carriage, the set departure time and the reserved time length of the air conditioner to the air conditioning system controller through the CAN message, and the air conditioner is started and is in an automatic running mode. An ambient temperature sensor of the air conditioner detects that the current ambient temperature is 0 ℃, the set temperature is 21 ℃ higher than the ambient temperature, the air conditioner works in a heating mode, and the air conditioner starts to normally run.
And after receiving an air conditioner starting command from the vehicle control unit, the electric system controller immediately switches on an electric loop of the air conditioner and provides electric energy from the power battery to the air conditioner.
The fourth step: when the starting time of the air conditioner reaches the preset time length, the vehicle control unit sends an air conditioner closing instruction to the air conditioning system controller, and the air conditioner is closed.
In the control process, if the air conditioner needs to be turned off in advance, a driver can directly send out a reservation canceling instruction through the reservation input terminal.
The fifth step: and the vehicle control unit sends a closing instruction to the electric system controller and the battery management system.
So far, the whole reservation process is completed.
The new energy automobile reservation control method can be used as a computer program, is stored in a memory in a reservation control module in a new energy automobile reservation control system and can be operated on a processor in the reservation control module.
Embodiment two of reservation control method for new energy automobile
For convenience of explaining the new energy automobile reservation control method provided by the embodiment, a vehicle reservation system implementing the reservation control method is provided below, and as shown in fig. 2, the system includes a mobile user terminal (user mobile terminal), a mobile network server and a whole automobile part. The whole vehicle part comprises a vehicle-mounted networking host machine, a whole vehicle controller, an air conditioning system controller, an electric system controller, a battery management system and a charging system, wherein the vehicle-mounted networking host machine is used for receiving and converting signals.
The mobile user terminal is an intelligent terminal provided with an APP, a reservation instruction is sent to the mobile network server through the mobile user terminal, the mobile network server sends a reservation instruction request to a vehicle, a vehicle-mounted networking host of the vehicle transmits the received reservation instruction to the vehicle control unit, the vehicle control unit sends the reservation instruction to the air conditioning system controller, the electrical system controller and the battery management system through a vehicle CAN network, and the air conditioning system controller, the electrical system controller and the battery management system send CAN messages of working states in real time. And the battery management system controls the charging system to ensure that the charging process is orderly and controllable according to the setting of the reservation instruction. Of course, when the charging system is operating, a reservation control process of the vehicle charging state is performed, and when the charging system is stopped, a reservation control process of the vehicle non-charging state is performed.
Therefore, the vehicle reservation system in the embodiment can realize remote reservation control, and the new energy vehicle reservation control method is the same as the reservation control method in the first embodiment.
The method for controlling the reservation of the new energy automobile comprises a reservation control process of a charging state of the automobile and a reservation control process of a non-charging state of the automobile. Of course, as another embodiment, the new energy vehicle reservation control method may further include only one of a reservation control process of a vehicle charge state and a reservation control process of a vehicle non-charge state.
The following describes a reservation control process of a vehicle charge state and a reservation control process of a vehicle non-charge state, respectively, with reference to the system shown in fig. 2.
Reservation control process of vehicle state of charge:
and the vehicle charging responsible person or the driver submits the reservation instruction to the mobile network server by using the mobile user terminal and confirms that the reservation instruction is valid. The data in the reservation instruction includes a set departure time (hour, minute) and a car set temperature (deg.c).
During the charging period of the vehicle, the battery management system sends a charging effective signal to the vehicle controller, and the vehicle enters a reserved working mode. The battery management system can calculate the time length required by charging completion according to the set departure time in the reservation instruction, the current residual electric quantity of the power battery and the charging power, ensure that the charging of the vehicle is completed before the whole vehicle is sent out, and ensure that the temperature of the power battery reaches a preset value.
In the charging process, the state of charge of the power battery is gradually increased, when the state of charge of the power battery reaches a first set threshold value, the electric quantity of the power battery is high, the battery management system sends an air conditioner starting instruction to the air conditioner system controller, and the air conditioner is started. When the air conditioner is started, the air conditioning system controller compares the detected ambient temperature with the set temperature of the compartment to determine the specific operation mode (whether the air conditioner operates in the cooling mode or the heating mode) of the air conditioner. The electric system controller is connected with an electric loop of the air conditioner immediately after receiving an air conditioner starting command from the battery management system, and supplies electric energy from the charging system to the air conditioner, namely, the charging system also supplies electric energy to the air conditioner while charging the power battery. Of course, the electrical system controller immediately shuts off the electrical circuit of the air conditioner if it receives a command to shut down the air conditioner.
During the operation of the air conditioner, the air conditioning system controller transmits consumed real-time power to the battery management system, the battery management system determines the output power of the charging system according to the real-time consumed power of the air conditioner and requests the charging system to output a proper amount of power, and the requirements are as follows: the output power of the charging system is larger than the real-time consumed power of the air conditioner, and the difference value between the output power of the charging system and the real-time consumed power of the air conditioner is set according to actual requirements. Then, the part of the consumed power in the output power of the charging system is used for supplying power to the air conditioner, and the part of the output power minus the consumed power is used as the charging power of the power battery to charge the power battery, so that the power battery can be charged with small power continuously while the use of the air conditioner is satisfied. Therefore, during charging, the air conditioner uses electric energy from the charging system and does not consume electric energy from the power battery.
After the air conditioner is started, the actual temperature of the compartment gradually changes to the compartment set temperature, for convenience of description, the time (or referred to as time) when the actual temperature of the compartment changes to be just equal to the compartment set temperature is set as a first time, and the actual state of charge of the power battery when the actual temperature of the compartment changes to be just equal to the compartment set temperature is set as a first state of charge, so that the charging power required by the power battery can be calculated according to the time difference between the set departure time and the first time and the difference value between the first state of charge and the full state of charge (namely, the SOC is 100%), namely the charging power required by the power battery is obtained, and the state of charge of the power battery is just the full state, namely, the power battery is just fully charged when the departure time is set.
The calculation formula of the charging power P required by the power battery is as follows:
therein, SOC1And in the first state of charge, delta t is the time difference between the set departure time and the first time, and Q is the rated capacity of the power battery.
After the actual temperature of the compartment is equal to the set temperature of the compartment, the consumed power of the air conditioner changes, and the previous power is changed into the power consumed for maintaining the set temperature of the compartment, so that the output power of the charging system is controlled by the battery management system to be the sum of the obtained required charging power and the power consumed by the air conditioner for maintaining the set temperature of the compartment, and in this way, the power battery is just fully charged when the set departure time arrives, and the temperature of the compartment can be ensured to be stabilized at the set temperature.
When the temperature of the compartment reaches the set temperature and the state of charge of the power battery reaches 100%, the battery management system sends an air conditioner closing instruction to the air conditioner system controller through the CAN message, and the air conditioner is closed. Meanwhile, the battery management system requests the charging system to be closed, and the charging system is actively closed after receiving a closing request instruction. So far, the whole charging process is completed.
The battery management system sends a reservation completion instruction to the vehicle control unit, the vehicle control unit sends reservation completion data to the vehicle-mounted networking host through the CAN message, and the vehicle-mounted networking host sends the reservation instruction completion prompt to the mobile user terminal through the mobile network server in a short message or voice mode. So far, the whole reservation process is completed.
The reservation control process of the vehicle non-charging state comprises the following steps:
and during the non-charging period of the vehicle, the vehicle controller receives a reservation instruction from the vehicle-mounted networking host, and the vehicle enters a reservation working mode. The vehicle control unit wakes up the battery management system, and the battery management system sends the residual electric quantity of the current power battery to the vehicle control unit.
If the state of charge of the vehicle power battery is larger than or equal to a second set threshold value, indicating that the residual electric quantity of the power battery meets the use requirement of the air conditioner, the reservation instruction is effective; on the contrary, if the residual capacity of the power battery cannot meet the use requirement of the air conditioner, the reservation instruction is invalid, and the vehicle-mounted networking host sends the invalid information of the reservation instruction to the mobile client terminal and carries out risk prompt.
When the reservation instruction is effective, the vehicle control unit sends information such as the set temperature of the carriage, the set departure time and the reserved time length of the air conditioner to the air conditioning system controller through the CAN message, and the air conditioner is started and is in an automatic running mode. The air conditioning system controller compares the detected ambient temperature with a cabin set temperature to determine the operating state of the air conditioner (whether it is operating in a cooling mode or a heating mode).
And after receiving an air conditioner starting command from the vehicle control unit, the electric system controller immediately switches on an electric loop of the air conditioner and provides electric energy from the power battery to the air conditioner. Of course, the electrical system controller may shut off the electrical circuit of the air conditioner immediately after receiving the command to shut down the air conditioner.
When the starting time of the air conditioner reaches the preset time length, the vehicle control unit sends an air conditioner closing instruction to the air conditioning system controller, and the air conditioner is closed.
In the control process, if the air conditioner needs to be turned off in advance, a driver can directly send out a reservation canceling instruction through the reservation input terminal.
The vehicle control unit sends the reservation completion data to the vehicle-mounted networked host computer through the CAN message, and the vehicle-mounted networked host computer sends a reservation instruction completion prompt to the mobile user terminal through the mobile network server in a short message or voice mode. So far, the whole reservation process is completed.
In combination with the above two control processes, the following respectively give corresponding application examples.
Application example of the reservation control process of the vehicle charge state:
the first step is as follows: a driver sends the reservation instruction to the mobile network server through the mobile user terminal, the mobile network server sends the reservation instruction to the vehicle-mounted networking host, and the vehicle-mounted networking host forwards the reservation instruction to the vehicle control unit.
Assume that the set departure time in the reservation order is 17:30, the set temperature of the car is 21 ℃, and assume that the current time is 9: 30.
The second step is that: and the vehicle control unit sends the set departure time, the set temperature of the carriage and the current time to the air conditioning system controller and the battery management system through the CAN message.
The third step: the battery management system identifies the current residual electric quantity and charging power of the power battery, assumes that the state of charge is 30% and the charging power is 100kw, and calculates the charging time of the power battery to be 8h according to the current time and the set departure time, the charging process is started, and the vehicle is normally charged.
It is assumed that the air conditioner is turned on when the state of charge of the power battery reaches 90%. Before the state of charge reaches 90%, the battery is charged according to normal charging power until the state of charge reaches 90% of electric quantity.
The fourth step: assuming a current time of 16:00, the state of charge reaches 90%.
The battery management system sends an air conditioner starting instruction to the air conditioner system controller and the electric system controller, and the air conditioner is started. When an ambient temperature sensor of the air conditioner detects that the current ambient temperature is 32 ℃, the set temperature of the carriage is 21 ℃ and is lower than the ambient temperature, the air conditioner works in a refrigeration mode, and the air conditioner starts to normally run.
And after receiving an air conditioner starting command from the vehicle control unit, the electric system controller immediately switches on an electric loop of the air conditioner and provides electric energy from the charging system to the air conditioner.
The fifth step: the air conditioning system controller sends the real-time power consumed by the air conditioner to the battery management system, such as 10kw real-time power.
The output power requested by the battery management system to the charging system is 12kw (10kw +2kw), 10kw is consumed by the air conditioner, 2kw is used for continuing to charge the power battery, and the state of charge of the power battery continues to increase.
And a sixth step: assuming that the temperature of the compartment reaches 21 ℃ after the air conditioner is started to operate for 45min, the air conditioner continues to work to maintain the temperature of the compartment. The current time when the temperature of the compartment reaches the set temperature is 16:45(16:00+45min), the state of charge of the power battery is 93%, and the time for completing the reservation is 45min (16: 45-17: 30).
The seventh step: assuming that the real-time power consumed by the air conditioner to maintain the temperature of the cabin is 5kw, the battery management system calculates that the required charging power is 60kw when the battery state of charge reaches 100% at 17:30, and then the output power requested by the battery management system to the charging system is 65kw (60kw +5 kw).
Eighth step: at 17:30, the state of charge of the power battery just reaches 100%, and the cabin temperature is maintained at 21 ℃. And the battery management system sends a battery charging completion instruction to the vehicle control unit.
The battery management system requests the charging system to be closed, and after the charging system receives a closing request instruction, the system is closed and does not charge the power battery any more. And the vehicle control unit sends an air conditioner closing instruction to the air conditioning system controller, and the air conditioner is turned off. The electric system controller cuts off the electric loop of the air conditioner immediately after receiving the command of closing the air conditioner. And the vehicle control unit sends a closing instruction to the electric system controller and the battery management system.
The ninth step: and the vehicle control unit sends an appointment completion prompt to the mobile user terminal through the vehicle-mounted networking host.
And the charging process is finished, and the whole reservation process is finished.
Application example of reservation control process of vehicle non-charging state:
the first step is as follows: and during the non-charging period of the vehicle, the vehicle control unit receives a reservation instruction from the vehicle-mounted networking host computer, judges that the vehicle control unit is in a non-charging reservation mode, and enables the vehicle to enter a reservation working mode.
Assume that the set departure time in the reservation order is 17:30, the set temperature of the car is 21 ℃, and assume that the current time is 9: 30.
The second step is that: the vehicle control unit wakes up the battery management system, and the battery management system sends the current residual power of the power battery to the vehicle control unit.
If the residual electric quantity of the power battery meets the use requirement of the air conditioner, the reservation instruction is effective. Such as: assuming that the residual electric quantity of the current power battery is 60%, the use requirement of the air conditioner is met, and the reservation instruction is effective; assuming that the residual electric quantity of the current power battery is 20%, the use requirement of the air conditioner cannot be met, and the forced opening of the air conditioner can cause the over-discharge of the power battery, the reservation instruction is invalid, and a reservation invalid prompt is sent to the mobile user terminal.
The third step: when the reservation instruction is effective, the vehicle control unit sends information such as the set temperature of the carriage, the set departure time and the reserved time length of the air conditioner to the air conditioning system controller through the CAN message, and the air conditioner is started and is in an automatic running mode. An ambient temperature sensor of the air conditioner detects that the current ambient temperature is 0 ℃, the set temperature is 21 ℃ higher than the ambient temperature, the air conditioner works in a heating mode, and the air conditioner starts to normally run.
And after receiving an air conditioner starting command from the vehicle control unit, the electric system controller immediately switches on an electric loop of the air conditioner and provides electric energy from the power battery to the air conditioner.
The fourth step: when the starting time of the air conditioner reaches the preset time length, the vehicle control unit sends an air conditioner closing instruction to the air conditioning system controller, and the air conditioner is closed.
In the control process, if the air conditioner needs to be closed in advance, a driver can send out a reservation canceling instruction through the mobile user terminal.
The fifth step: the vehicle control unit sends a closing instruction to the electric system controller and the battery management system, the vehicle control unit sends reservation completion data to the vehicle-mounted networking host through the CAN message, and the vehicle-mounted networking host sends a reservation instruction completion prompt to the mobile user terminal through the mobile network server in a short message or voice mode.
So far, the whole reservation process is completed.
The new energy automobile reservation control method can be used as a computer program, is stored in a memory in a reservation control module in a new energy automobile reservation control system and can be operated on a processor in the reservation control module.
The specific embodiments are given above, but the present invention is not limited to the described embodiments. The basic idea of the present invention lies in the above basic scheme, and it is obvious to those skilled in the art that no creative effort is needed to design various modified models, formulas and parameters according to the teaching of the present invention. Variations, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (8)
1. A new energy automobile reservation control method is characterized by comprising a reservation control process of a vehicle charging state, a reservation control process of the vehicle charging state and a reservation control process of a vehicle non-charging state,
the reservation control process of the vehicle state of charge includes the following processes: in the vehicle charging process, after a vehicle receives a reservation instruction and the state of charge of a vehicle power battery reaches a first set threshold value, controlling a vehicle-mounted air conditioning system to be started, and controlling a charging system to supply power to the vehicle-mounted air conditioning system;
the reservation instruction also comprises setting departure time, setting the time when the actual temperature of the carriage changes to the set temperature of the carriage as first time, and setting the actual state of charge of the power battery when the actual temperature of the carriage changes to the set temperature of the carriage as first state of charge; after the actual temperature of the compartment is equal to the set temperature of the compartment, obtaining the charging power required by the power battery according to the time difference between the set departure time and the first time and the difference between the first charge state and the full charge state of the power battery, and then controlling the output power of the charging system to be the sum of the charging power required by the power battery and the power consumed by the vehicle-mounted air conditioning system for maintaining the set temperature of the compartment;
the calculation formula of the charging power P required by the power battery is as follows:
therein, SOC1The state of charge is a first state of charge, delta t is the time difference between the set departure time and the first time, and Q is the rated capacity of the power battery;
the reservation control process of the vehicle non-charging state includes the following processes: after the vehicle receives the reservation instruction, if the state of charge of the vehicle power battery is larger than or equal to a second set threshold value, the vehicle air conditioning system is controlled to be started, the power battery supplies power for the vehicle air conditioning system, and when the starting time of the vehicle air conditioning system reaches the air conditioning reservation duration information in the reservation instruction, the vehicle air conditioning system is controlled to be stopped.
2. The reservation control method for the new energy automobile according to claim 1, wherein the reservation instruction comprises a compartment set temperature, and when the vehicle-mounted air conditioning system is started, whether the vehicle-mounted air conditioning system works in a cooling mode or a heating mode is judged according to the high-low relation between the compartment set temperature and the ambient temperature.
3. The reservation control method for the new energy automobile according to claim 1, wherein in the reservation control process of the vehicle charging state, when the actual temperature of the vehicle cabin is the set temperature of the vehicle cabin and the power battery is in a full charge state, the vehicle-mounted air conditioning system and the charging system are controlled to be turned off.
4. The reservation control method for the new energy automobile according to any one of claims 1 to 3, wherein the reservation instruction is transmitted to the automobile through an on-board input terminal or a user mobile terminal.
5. A reservation control system of a new energy automobile comprises a reservation control module, wherein the reservation control module comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, the reservation control system is characterized in that the processor executes the program to realize a reservation control process of a vehicle charging state and a reservation control process of the vehicle charging state plus a reservation control process of a vehicle non-charging state,
the reservation control process of the vehicle state of charge includes the following processes: in the vehicle charging process, after a vehicle receives a reservation instruction and the state of charge of a vehicle power battery reaches a first set threshold value, controlling a vehicle-mounted air conditioning system to be started, and controlling a charging system to supply power to the vehicle-mounted air conditioning system;
the reservation instruction also comprises setting departure time, setting the time when the actual temperature of the carriage changes to the set temperature of the carriage as first time, and setting the actual state of charge of the power battery when the actual temperature of the carriage changes to the set temperature of the carriage as first state of charge; after the actual temperature of the compartment is equal to the set temperature of the compartment, obtaining the charging power required by the power battery according to the time difference between the set departure time and the first time and the difference between the first charge state and the full charge state of the power battery, and then controlling the output power of the charging system to be the sum of the charging power required by the power battery and the power consumed by the vehicle-mounted air conditioning system for maintaining the set temperature of the compartment;
the calculation formula of the charging power P required by the power battery is as follows:
therein, SOC1The state of charge is a first state of charge, delta t is the time difference between the set departure time and the first time, and Q is the rated capacity of the power battery;
the reservation control process of the vehicle non-charging state includes the following processes: after the vehicle receives the reservation instruction, if the state of charge of the vehicle power battery is larger than or equal to a second set threshold value, the vehicle air conditioning system is controlled to be started, the power battery supplies power for the vehicle air conditioning system, and when the starting time of the vehicle air conditioning system reaches the air conditioning reservation duration information in the reservation instruction, the vehicle air conditioning system is controlled to be stopped.
6. The reservation control system of the new energy automobile as claimed in claim 5, wherein the reservation instruction comprises a compartment set temperature, and when the vehicle-mounted air conditioning system is started, whether the vehicle-mounted air conditioning system works in the cooling mode or the heating mode is judged according to the high-low relation between the compartment set temperature and the ambient temperature.
7. The reservation control system of the new energy automobile according to claim 5, wherein in the reservation control process of the vehicle charging state, when the actual temperature of the vehicle cabin is the set temperature of the vehicle cabin and the power battery is in a full charge state, the vehicle-mounted air conditioning system and the charging system are controlled to be turned off.
8. The reservation control system of the new energy automobile according to any one of claims 5 to 7, wherein the reservation instruction is transmitted to the automobile through an on-board input terminal or a user mobile terminal.
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| CN111038215B (en)* | 2019-12-30 | 2021-08-27 | 华人运通(江苏)技术有限公司 | Control method and device of automobile heat pump air conditioning system, storage medium and terminal |
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