Disclosure of Invention
The invention aims to provide a vehicle ventilation control method, a vehicle ventilation control device and an automobile, wherein when the vehicle is switched from an ON gear to an OFF gear or an ACC gear, the power supply of an air conditioner blower by a vehicle-mounted storage battery is switched to the power supply of the air conditioner blower by a solar panel, and whether the power supply of the air conditioner blower by the solar panel is started or not can be set by a vehicle-mounted entertainment device when the vehicle is switched from the ON gear to the OFF gear or the ACC gear.
In order to solve the technical problem, the invention provides a vehicle ventilation control method, which comprises the following steps:
when the ignition switch of the vehicle is switched from an ON gear to an OFF gear or an ACC gear, a first power supply circuit for connecting the vehicle-mounted storage battery and the air conditioner blower is disconnected, and a second power supply circuit for connecting the solar panel, the solar controller and the air conditioner blower is communicated;
when the solar controller monitors that the power supply voltage of the solar panel reaches a preset working voltage, the solar controller controls the solar panel to supply power to the air conditioner blower.
Further, solar control ware control solar cell panel is to the air conditioner air-blower power supply specifically includes:
the solar controller obtains the temperature and the illumination intensity of the current environment where the solar panel is located, calculates the maximum output power of the solar panel in the current environment according to a maximum power point tracking algorithm, and adjusts the voltage of the solar panel for supplying power to the air conditioner blower according to the maximum output power.
Further, when the solar controller monitors that the power supply voltage of the solar cell panel reaches a preset working voltage, the solar controller controls the solar cell panel to supply power to the air conditioner blower, and the method specifically comprises the following steps:
the solar controller acquires the temperature in the vehicle through a temperature sensor in the vehicle;
when the temperature in the vehicle is higher than a preset temperature threshold value and the solar controller monitors that the power supply voltage of the solar panel reaches a preset working voltage, the solar controller controls the solar panel to supply power to the air conditioner blower.
Further, when the solar controller controls the solar panel to supply power to the air conditioner blower, the air conditioner controller adjusts the circulation mode of the air conditioner to be an external circulation mode.
Further, the method further comprises:
when the vehicle ignition switch is switched to the ON gear, the second power supply circuit is disconnected, and the first power supply circuit is connected.
The invention provides a vehicle ventilation control device, which comprises a solar cell panel and an air conditioner blower, and further comprises:
the line switching module is used for disconnecting a first power supply circuit for connecting the vehicle-mounted storage battery and the air conditioner blower and connecting the solar panel, the solar controller and a second power supply circuit for connecting the air conditioner blower when a vehicle ignition switch is switched from an ON gear to an OFF gear or an ACC gear;
and the solar controller is used for controlling the solar panel to supply power to the air conditioner blower when the power supply voltage of the solar panel reaches a preset working voltage.
Further, the solar controller further comprises:
the power calculation module is used for acquiring the temperature and the illumination intensity of the current environment where the solar panel is located and calculating the maximum output power of the solar panel in the current environment according to a maximum power point tracking algorithm;
the solar controller is further used for adjusting the voltage of the solar panel for supplying power to the air conditioner blower according to the maximum output power.
Furthermore, the vehicle ventilation control device also comprises an in-vehicle temperature judgment module;
the in-vehicle temperature judging module is used for sending a power supply signal of an air conditioner blower to the solar controller when the in-vehicle temperature is judged to be greater than a preset temperature threshold;
and after receiving the power supply signal of the air conditioner blower, the solar controller monitors and judges that the power supply voltage of the solar panel reaches a preset working voltage, and controls the solar panel to supply power to the air conditioner blower.
Further, the line switching module is further configured to disconnect the second power supply circuit and connect the first power supply circuit when the vehicle ignition switch is switched to the ON gear.
The invention provides an automobile which comprises the system of the vehicle ventilation control device.
The implementation of the invention has the following beneficial effects:
according to the invention, when the vehicle is switched from the ON gear to the OFF gear or the ACC gear, the power supply of the air conditioner blower is switched from the vehicle-mounted storage battery to the solar panel, and when the power generation intensity of the solar panel reaches a preset value, the solar panel directly supplies power to the air conditioner blower, so that the ventilation effect is ensured, and the problems of energy consumption increase and storage battery power shortage possibly caused in the prior art are solved.
Detailed Description
When the vehicle is switched from an ON gear to an OFF gear or an ACC gear, the power supply of the blower by the vehicle-mounted storage battery is switched to the power supply by directly using the solar panel, and whether the solar-driven air-conditioning blower is used or not can be controlled by the vehicle-mounted entertainment device.
As shown in fig. 1, an embodiment of the present invention provides a vehicle ventilation control method, including:
s11, when the ignition switch of the vehicle is switched from an ON gear to an OFF gear or an ACC gear, the relays disconnect a first power supply circuit for connecting the vehicle-mounted storage battery and the air conditioner blower under the power-OFF control of a first vehicle-mounted power signal, and connect a second power supply circuit for connecting the solar panel, the solar controller and the air conditioner blower;
and S12, when the solar controller monitors that the second vehicle-mounted power supply signal is zero and the power supply voltage of the solar panel reaches a preset working voltage, the solar controller controls the solar panel to supply power to the air conditioner blower.
It should be noted that step S12 may not require the solar controller to detect that the second on-board power signal is zero.
Referring to fig. 2, when the vehicle is switched from the ON range to the OFF range or the ACC range, the first ON-board power signal 61 and the second ON-board power signal 62 are both OFF, the first ON-board power signal 61 is IG2, the second ON-board power signal 62 is IG1, and IG1 and IG2 belong to the ON range; under the power-OFF control of the first vehicle-mounted power signal IG2, thefirst relay 71 and thesecond relay 72 are simultaneously turned OFF, so that the first power supply circuit connecting the vehicle-mountedstorage battery 9 and theair conditioner blower 44 is turned OFF, and the second power supply circuit connecting the solar controller 1 and thesolar panel 2 and theair conditioner blower 44 is connected, in this case, the circuit diagram of the operation of theair conditioner blower 44 refers to the equivalent circuit diagram of the air conditioner blower control in the OFF gear provided in fig. 4.
Referring to fig. 3, the first power supply circuit refers to a circuit formed by the vehicle-mountedstorage battery 9, theair conditioner blower 44 and thespeed regulation module 41; referring to fig. 4, the second power supply circuit refers to a circuit formed by the solar controller 1, thesolar panel 2 and theair conditioner blower 44.
Referring to fig. 4, when the air conditioner blower 44 encounters a power failure of the vehicle-mounted power supply, the solar controller 1 is used for controlling thesolar panel 2 to supply power to the motor of theair conditioner blower 44, so that the following problems caused by the fact that thesolar panel 2 firstly charges the vehicle-mountedstorage battery 9 and then the vehicle air conditioning system is supplied with power from the vehicle-mountedstorage battery 9 and controls the air conditioner blower to work are avoided: firstly, unnecessary energy consumption is increased by modules in the air conditioning system, which are not related to the operation control of an air conditioner blower; secondly, when the generated energy of thesolar panel 2 is less than the power supply of the vehicle-mountedstorage battery 9 to theair conditioner blower 44, the long-time ventilation may cause the power shortage phenomenon of the vehicle-mountedstorage battery 9 to occur, and the next use of the vehicle is influenced.
Further, when the solar controller monitors that the power supply voltage of the solar cell panel reaches a preset working voltage, the solar controller controls the solar cell panel to supply power to the air conditioner blower, and the method specifically comprises the following steps:
the solar controller acquires the temperature in the vehicle through a temperature sensor in the vehicle;
when the temperature in the vehicle is higher than a preset temperature threshold value and the solar controller monitors that the power supply voltage of the solar panel reaches a preset working voltage, the solar controller controls the solar panel to supply power to the air conditioner blower.
Referring to fig. 4, when the solar controller 1 monitors that the power supply voltage of thesolar panel 2 reaches a preset working voltage, the in-vehicle temperature sensor 8 connected to the solar controller 1 is used to continuously obtain in-vehicle temperature information from the in-vehicle temperature sensor 8, and only when the in-vehicle temperature is greater than a preset temperature threshold, the solar controller controls the solar panel to supply power to the air conditioner blower.
Further, solar control ware control the solar cell is to air conditioner air-blower power supply specifically includes:
the solar controller 1 starts an MPPT algorithm to adjust the power supply voltage of the solar panel; the method specifically comprises the following steps: the solar controller obtains the temperature and the illumination intensity of the current environment where the solar panel is located, calculates the maximum output power of the current environment of the solar panel according to a maximum power point tracking algorithm (MPPT), and adjusts the voltage of the air conditioner blower for power supply of the solar panel according to the maximum output power, so that the power generation efficiency of the solar panel is in the optimal state, and the efficiency of ventilation and cooling in the vehicle can be improved.
Further, the method further comprises:
acquiring stored first preset user information from an EEPROM of the solar controller;
and according to the first preset user information, the solar controller judges whether the direct current is output to the air conditioner blower through the second power supply circuit or not.
Referring to fig. 2, in the present embodiment, the solar controller 1 stores first preset user information, which is switched from the ON gear to the OFF gear or the ACC gear in the vehicle and is written into the EEPROM without power failure, as a soft switch for determining whether to automatically output the direct current to theair conditioner blower 44 through the second power supply circuit via the solar controller 1, so that a non-reset hard switch is saved.
Further, the method further comprises:
closing a setting interface of the vehicle-mounted entertainment device;
acquiring stored second preset user information from an EEPROM of the air conditioner controller, and adjusting a circulation mode and an air supply mode in the air conditioner box body assembly according to the second preset user information;
and controlling the air conditioner controller to enter a sleep mode.
Referring to fig. 2, theair conditioner controller 3 reads second preset user information, and adjusts the circulation mode and the air supply mode in the airconditioner box assembly 4 according to the second preset user information so as to minimize energy consumption in the case of only supplying power to thesolar cell panel 2; for example, the internal and external circulation mode damper motor in the airconditioner cabinet assembly 4 is switched to the external circulation mode, the air supply mode damper motor is switched to the face blowing mode, and theair conditioner controller 3 enters the sleep mode after the above actions are completed, so that the extremely low power consumption is kept.
Namely, when the solar controller controls the solar panel to supply power to the air conditioner blower, the air conditioner controller adjusts the circulation mode of the air conditioner to be external circulation.
Further, the method further comprises:
when the vehicle ignition switch is switched to an ON gear, the solar controller monitors that a second vehicle-mounted power supply signal is a high potential, and the direct current output of the solar controller is turned off;
and the plurality of relays disconnect the second power supply circuit connected with the air conditioner blower and the first power supply circuit connected with the vehicle-mounted storage battery and the air conditioner blower under the high-potential control of the first vehicle-mounted power supply signal.
Referring to fig. 2, when the vehicle is switched back to the ON gear, the first ON-board power signal 61 outputs 12V voltage, which in this embodiment is 12V voltage; after the first power supply circuit connected with the vehicle-mountedstorage battery 9 and theair conditioner blower 44 is connected, the solar controller 1 also closes the direct current output of the solar controller 1 because the second vehicle-mountedpower signal 62 is monitored to be 12V, the second vehicle-mountedpower signal 62 supplies power to the solar controller 1, and the MPPT algorithm and the direct current/direct current output control function operated in the solar controller 1 are both closed; the circuit diagram of the operation of theair conditioner blower 44 in this case is shown in the control equivalent circuit diagram of theair conditioner blower 44 in the ON position provided in fig. 3.
Furthermore, the air conditioner controller is awakened from the sleep mode, and the speed regulating module in the air conditioner box body is switched on or off by utilizing the pulse width modulation signal and the voltage feedback signal, so that the closed-loop control of the rotating speed of the air conditioner blower is realized.
Referring to fig. 3, theair conditioner controller 3 implements control of the rotation speed of theair conditioner blower 44.
Further, the air conditioner controller acquires a control instruction of the vehicle-mounted entertainment device through a CAN bus, wherein the control instruction comprises user setting;
storing the user setting into an EEPROM of the air conditioner controller to form second preset user information;
and according to the corresponding relation between the second preset user information and the output voltage of the air conditioner controller, the air conditioner controller outputs the output voltage corresponding to the second preset user information to the solar controller.
Referring to fig. 2, the in-vehicle entertainment apparatus 5 may send the user setting to theair conditioner controller 3 through a control command, and theair conditioner controller 3 may store the user setting in the EEPROM of theair conditioner controller 3 to form the second preset user information, for example, the second preset user information includes that the energy of thesolar cell panel 2 is turned ON for ventilation when the ignition switch of the vehicle is switched from the ON gear to the OFF gear or the ACC gear; since theair conditioner controller 3 stores a function of turning ON thesolar panel 2 to ventilate when the vehicle ignition is turned ON from the ON range to the OFF range or the ACC range, and the 8V output voltage is applied, theair conditioner controller 3 outputs the 8V voltage to the solar controller 1.
Further, the solar controller monitors the output voltage of the air conditioner controller;
referring to fig. 2, according to the corresponding relationship between the output voltage and the first preset user information, first preset user information is formed and stored in the EEPROM of the solar controller 1.
It should be noted that, when the solar controller 1 monitors that the output voltage of theair conditioner controller 3 is 8V, it can be known that the information transmitted by theair conditioner controller 3 includes: when the ignition switch of the vehicle is switched from an ON gear to an OFF gear or an ACC gear, the energy of thesolar panel 2 is turned ON for ventilation; the information is stored into an EEPROM of the solar controller 1 as first preset user information and is used as a soft switch for judging whether the solar panel 1 is used for supplying power to theair conditioner blower 44; in conclusion, the existing vehicle-mountedentertainment device 5 on the vehicle is utilized, theair conditioner controller 3 and the solar controller 1 are subjected to related software transformation, whether thesolar cell panel 2 is used for supplying power for theair conditioner blower 44 or not can be manually set, the increase of a hardware switch is avoided, and the setting of the status indicator lamp is relatively limited.
As shown in fig. 5, the embodiment of the present invention provides a device for controlling a ventilation function, which includes a solar controller 1, asolar panel 2 and aline switching module 101,
theline switching module 101 is used for disconnecting a first power supply circuit of the vehicle-mountedstorage battery 9 connected with theair conditioner blower 44 and communicating a second power supply circuit of thesolar panel 2, the solar controller 1 and theair conditioner blower 44 when a vehicle ignition switch is switched from an ON gear to an OFF gear or an ACC gear;
the solar controller 1 is configured to control thesolar panel 2 to supply power to theair conditioner blower 44 when it is monitored that the power supply voltage of thesolar panel 2 reaches a preset working voltage.
Further, the solar controller 1 further comprises apower calculation module 102,
thepower calculation module 102 is configured to obtain a temperature and an illumination intensity of a current environment where thesolar panel 2 is located, and calculate a maximum output power of the solar panel in the current environment according to a maximum power point tracking algorithm;
the solar controller 1 is further configured to adjust a voltage of thesolar panel 2 for supplying power to theair conditioner blower 44 according to the maximum output power.
Further, the ventilation function control device further includes:
the in-vehicletemperature judging module 103 is used for sending a power supply signal of theair conditioner blower 44 to the solar controller 1 when the in-vehicle temperature is judged to be greater than a preset temperature threshold;
after receiving the power supply signal of theair conditioner blower 44, the solar controller 1 monitors and judges that the power supply voltage of thesolar cell panel 2 reaches a preset working voltage, and controls thesolar cell panel 2 to supply power to theair conditioner blower 44.
Further, theline switching module 101 is further configured to disconnect the second power supply circuit and connect the first power supply circuit when the vehicle ignition switch is switched to the ON gear.
The embodiment of the invention provides an automobile comprising the vehicle ventilation control device.
The implementation of the invention has the following beneficial effects:
according to the invention, when the vehicle is switched from the ON gear to the OFF gear or the ACC gear, the relay is utilized to switch the power supply of the air conditioner blower from the vehicle-mounted storage battery to the solar controller, once the power generation intensity of the solar panel reaches a preset range, the power is directly supplied to the air conditioner blower, and the problems of energy consumption increase and storage battery power shortage possibly caused in the prior art are solved.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.