Plug-in hybrid system power distribution system and control method, Controlling SystemTechnical field
The present invention relates to hybrid vehicle distribution technical field, particularly relate to a kind of plug-in hybrid system power distribution system and control method, Controlling System.
Background technology
Along with the increase of environmental pollution and the impact of energy dilemma, the development of new energy vehicle is more and more paid attention to, and in new energy vehicle, plug-in hybrid-power automobile proportion is very big. Plug-in formula can according to the ever-changing operating environment of different cities public transit system, the following operational mode of flexible transformation, best oil-saving effect can be reached: pure electric operation pattern, adopt grid charging, electric-only mode can be adopted within the scope of cell container to run, and engine does not start in this mode of operation, the state for subsequent use when only doing abnormal condition, reach zero release, be equivalent to a pure electric automobile; Hybrid power operational mode, it is not necessary to charging gets final product long-time running, operation, completely with tradition fuel vehicle, only plays the effect starting power-assisted and brake energy recovery, and engine exports mean power in optimum regime, and rate of economizing gasoline is at about 20-30%; Plug-in formula operational mode, utilizes ground grid charging night, in a planned way uses power battery pack energy when daytime is run, reduce fuel engines power, it is to increase rate of economizing gasoline, have simultaneously and start power-assisted and brake energy recovery function, cell container is selected suitably, and rate of economizing gasoline can reach more than 50%.
Fig. 1 shows the structural representation of plug-in hybrid system, as shown in Figure 1, plug-in hybrid system mainly comprises auxiliarypower system (APU, AuxiliaryPowerUnit), electrical control system, accumulator system, power assembly control system (PCU, PowertrainControlUnit), motor driven systems, auxiliary power system etc., wherein auxiliarypower system comprises engine and generator, electrical control system comprises power distribution system and entire car controller (VCU, VehicleControlUnit), accumulator system comprises power battery pack, battery management system, super capacitor group, capacitance management system, charging unit, energy storage control enclosure etc., power assembly control system comprises electric machine control device and engine controller, motor driven systems comprises by electric machine control device and drive-motor, auxiliary power system comprises DC to DC converter group and DC/AC inverter group. in addition, drive-motor is that whole car uniquely drives propulsion source, directly it is connected with transmission shaft and drives back axle, realize increasing journey operational mode by vehicle-carried auxiliary power system, compensate for the defect of pure electric vehicle insufficient driving range, there is the advantage of lower fuel oil consumption and more low emission simultaneously compared with non-rechargeabel hybrid electric vehicle.
Fig. 2 shows the structural representation of conventional truck power distribution system in prior art, as shown in Figure 2, described conventional truck power distribution system comprises Chang Huo electricity distribution module, one grade of electric distribution module and second gear electricity distribution module, specifically, Chang Huo electricity distribution module comprises 24V store battery, first fusible cut-out F1 ', 2nd fusible cut-out F2 ' and manual switch S, the wherein negative pole ground connection of 24V store battery, the positive pole of 24V store battery sequentially connects Chang Huo electricity output terminal by the first fusible cut-out F1 ' and manual switch S, the output control of Chang Huo electricity is carried out by manual switch S, Chang Huo electricity output terminal is by a series of 2nd fusible cut-out F2 ' and the first corresponding parts electrical connection. one grade of electric module comprises relay K and driver's platform seesaw switch, wherein one end of relay K connects driver's platform seesaw switch, the other end ground connection, one end of the normally opened contact of relay K connects Chang Huo electricity output terminal, the other end connects one grade of electric output terminal, one grade of electric output control is carried out by relay K, one grade of electric output terminal is by a series of 3rd fusible cut-out F3 ' and the 2nd corresponding parts electrical connection, the coil power of relay K is driver's platform seesaw switch, when pressing driver's platform seesaw switch, the coil of relay K obtains electric, thus the normally opened contact making relay K closes, export one grade of electricity effective, when closing driver's platform seesaw switch, the coil losing electricity of relay K, thus the normally opened contact making relay K disconnects, export one grade of electricity invalid, second gear electricity distribution module comprises ignition switch, one grade of electric output terminal connects the output terminal of second gear electricity by ignition switch, the output terminal of second gear electricity is by a series of 4th fusible cut-out F4 ' and the 3rd corresponding parts electrical connection, and when ignition switch is placed in ON shelves, the 3rd parts obtain electric.
The defect of conventional truck power distribution system is, to not needing the parts powered on to control always, cannot easily cause the loss of the energy and the damage of parts; In addition, for plug-in hybrid system, owing to this hybrid power system is except increasing accumulator system, also the function of engine, motor etc. is changed: engine is not as the source of whole car energy, and only for generating, motor has become the unique propulsion source of whole car, thus the distribution mode that above-mentioned conventional truck power distribution system adopts cannot meet the power up requirement of each electric component, it is necessary to the power distribution system of conventional truck is re-started optimization.
Summary of the invention
Technical problem to be solved by this invention is that in prior art, conventional truck power distribution system to not needing the parts powered on to control always, and cannot cannot meet the logic requirement that powers on of each electric component of plug-in hybrid system.
In order to solve the problems of the technologies described above, the present invention provides a kind of plug-in hybrid system power distribution system and control method, Controlling System.
The technical scheme of the present invention is:
A kind of plug-in hybrid system power distribution system, comprises energy storage distribution module, and described energy storage distribution module comprises the first rly., the 2nd rly., charging contactor, battery main contactor and electric capacity main contactor;
The two ends of the coil of described first rly. connect the time delay signal output terminal of Chang Huo electricity and entire car controller respectively, the first end of the normally opened contact of described first rly. connects described Chang Huo electricity, and the 2nd end connects the low tension of external charging power supply, battery management system, the first end of normally opened contact of described battery main contactor, the first end of the normally opened contact of described electric capacity main contactor and described entire car controller respectively; The two ends of the coil of described 2nd rly. connect one grade of electricity and ground respectively, and the first end of the normally opened contact of described 2nd rly. connects described Chang Huo electricity, and the 2nd end connects the 2nd end of the normally opened contact of described first rly.;
The two ends of the coil of described battery main contactor connect the first signal output terminal and the ground of described entire car controller respectively, and the 2nd end of the normally opened contact of described battery main contactor connects the positive level of power battery pack; The two ends of the coil of described electric capacity main contactor connect second signal output terminal and the ground of described entire car controller respectively, and the 2nd end of the normally opened contact of described electric capacity main contactor connects the positive level of super capacitor group;
The two ends of the coil of described charging contactor connect charging signals output terminal and the ground of described entire car controller respectively, the first end of the normally opened contact of described charging contactor connects the high voltage electric of described external charging power supply, and the 2nd end connects the positive pole of described power battery pack.
Preferably, described energy storage distribution module also comprises battery pre-charging contactor, battery pre-charging resistance, electric capacity pre-charge contactor and electric capacity pre-charge resistance;
The coil of described battery pre-charging contactor is controlled by the 3rd signal that the 3rd signal output terminal of described entire car controller exports, after the normally opened contact of described battery pre-charging contactor is connected with described battery pre-charging resistance, it is connected in parallel on the two ends of the normally opened contact of the battery high-voltage connecting tentaculum by the control of described battery main contactor;
The coil of described electric capacity pre-charge contactor is controlled by the 4th signal that the 4th signal output terminal of described entire car controller exports, after the normally opened contact of described electric capacity pre-charge contactor is connected with described electric capacity pre-charge resistance, it is connected in parallel on the two ends of the normally opened contact of the capacitor high voltage contactor by the control of described electric capacity main contactor.
Preferably, described power distribution system also comprises heat radiation distribution module, and described heat radiation distribution module comprises energy storage fan contactor, motor and water pump contactor and controller water pump contactor;
The two ends of the coil of described energy storage fan contactor connect the 5th signal output terminal and the ground of described entire car controller respectively, and the first end of the normally opened contact of described energy storage fan connects described one grade of electricity, and the 2nd end connects energy storage fan;
The coil of described motor and water pump contactor connects the 6th signal output terminal and the ground of described entire car controller respectively, and the first end of the normally opened contact of described motor and water pump contactor connects described one grade of electricity, and the 2nd end connects motor and water pump;
The two ends of the coil of described controller water pump contactor connect the 7th signal output terminal and the ground of described entire car controller respectively, and the first end of the normally opened contact of described controller water pump connects described one grade of electricity, the 2nd end connection control device water pump.
Preferably, described heat radiation distribution module also comprises electric motor fan distribution branch road and engine fan distribution branch road;
In described electric motor fan distribution branch road, the power supply end of electric motor fan connects described one grade of electricity, and the control end of described electric motor fan connects the first pwm signal output terminal of described entire car controller;
In described engine fan distribution branch road, the power supply end of engine fan connects described one grade of electricity, and the control end of described engine fan connects the 2nd pwm signal output terminal of described entire car controller.
Preferably, described power distribution system also comprises Powertrain control distribution module, and described Powertrain control distribution module comprises control contactor;
The two ends of the coil of described control contactor connect the 8th signal output terminal and the ground of described entire car controller respectively, and the first end of the normally opened contact of described control contactor connects described Chang Huo electricity, and the 2nd end connects electric machine control device and engine controller respectively.
Preferably, the described one grade of electric branch road of all connections arranges fusible cut-out, the branch road of the described Chang Huo electricity of described connection arranges fusible cut-out.
A control method according to described plug-in hybrid system power distribution system, its delay cut-off control method comprises:
Judge that whether one grade of electricity is effective;
If not, then the coil controlling described first rly. obtains electric, and start to record described first rly. coil the electric time;
Judge that the described of record obtains the time delay the time whether electric time is greater than setting;
If it does, then control the coil losing electricity of described first rly..
Preferably, the energy storage distribution module of described power distribution system also comprises battery pre-charging contactor, battery pre-charging resistance, electric capacity pre-charge contactor and electric capacity pre-charge resistance;
The coil of described battery pre-charging contactor is controlled by the 3rd signal that the 3rd signal output terminal of described entire car controller exports, after the normally opened contact of described battery pre-charging contactor is connected with described battery pre-charging resistance, it is connected in parallel on the two ends of the normally opened contact of the battery high-voltage connecting tentaculum by the control of described battery main contactor;
The coil of described electric capacity pre-charge contactor is controlled by the 4th signal that the 4th signal output terminal of described entire car controller exports, after the normally opened contact of described electric capacity pre-charge contactor is connected with described electric capacity pre-charge resistance, it is connected in parallel on the two ends of the normally opened contact of the capacitor high voltage contactor by the control of described electric capacity main contactor;
The battery pre-charging control method of described control method comprises:
Obtain the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the voltage difference of the 2nd end;
Judge whether the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the voltage difference of the 2nd end are greater than the first voltage difference threshold value of setting;
If it does, then the coil controlling described battery pre-charging contactor obtains electric, until when the voltage difference of the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the 2nd end is less than or equal to described first voltage difference threshold value;
The electric capacity precharge control method of described control method comprises:
Obtain the first end of the normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end;
Judge whether the first end of the normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end are greater than the 2nd voltage difference threshold value of setting;
If it does, then the coil controlling described electric capacity pre-charge contactor obtains electric, until when the voltage difference of the first end of the normally opened contact of described capacitor high voltage contactor and the 2nd end is less than or equal to described 2nd voltage difference threshold value.
Preferably, described power distribution system also comprises Powertrain control distribution module, and described Powertrain control distribution module comprises control contactor; The two ends of the coil of described control contactor connect the 8th signal output terminal and the ground of described entire car controller respectively, and the first end of the normally opened contact of described control contactor connects described Chang Huo electricity, and the 2nd end connects electric machine control device and engine controller respectively;
The controller method for controlling power supply of described control method comprises:
Judge that whether described one grade of electricity is effective, and whether whole car is in non-charging mode;
If it does, then the coil controlling described control contactor obtains electric;
Judge whether whole car is in charge mode;
If it does, then control the coil losing electricity of described control contactor after the time period of setting;
Otherwise judge whether described one grade of electricity lost efficacy, and whether the current rotating speed of engine is less than the rotary speed threshold value of setting;
If it does, then control the coil losing electricity of described control contactor after the time period of setting.
A Controlling System according to described plug-in hybrid system power distribution system, its delay cut-off Controlling System comprises:
First judging unit, is set to judge that whether one grade of electricity is effective;
First relay control unit, is set to when described one grade of electricity lost efficacy, and the coil controlling described first rly. obtains electric;
Very first time record cell, be set to record described first rly. coil the electric time;
2nd judging unit, is set to judge that the described of record obtains the time delay the time whether electric time is greater than setting;
Described first relay control unit, is also set to control the coil losing electricity of described first rly. when obtaining the time delay time that the electric time is greater than setting described in recording.
Preferably, the energy storage distribution module of described power distribution system also comprises battery pre-charging contactor, battery pre-charging resistance, electric capacity pre-charge contactor and electric capacity pre-charge resistance;
The coil of described battery pre-charging contactor is controlled by the 3rd signal that the 3rd signal output terminal of described entire car controller exports, after the normally opened contact of described battery pre-charging contactor is connected with described battery pre-charging resistance, it is connected in parallel on the two ends of the normally opened contact of the battery high-voltage connecting tentaculum by the control of described battery main contactor;
The coil of described electric capacity pre-charge contactor is controlled by the 4th signal that the 4th signal output terminal of described entire car controller exports, after the normally opened contact of described electric capacity pre-charge contactor is connected with described electric capacity pre-charge resistance, it is connected in parallel on the two ends of the normally opened contact of the capacitor high voltage contactor by the control of described electric capacity main contactor;
The battery pre-charging control module of described Controlling System comprises:
First voltage difference acquiring unit, is set to the voltage difference of first end and the 2nd end obtaining the normally opened contact of described battery high-voltage connecting tentaculum;
3rd judging unit, is set to the first voltage difference threshold value judging whether the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the voltage difference of the 2nd end are greater than setting;
Battery pre-charging contactor control unit, it is set to when the first end of normally opened contact of described battery high-voltage connecting tentaculum and the voltage difference of the 2nd end are greater than the first voltage difference threshold value of setting, the coil controlling described battery pre-charging contactor obtains electric, until when the voltage difference of the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the 2nd end is less than or equal to described first voltage difference threshold value;
The electric capacity precharge control module of described Controlling System comprises:
2nd voltage difference acquiring unit, is set to obtain the first end of the normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end;
4th judging unit, is set to judge whether the first end of the normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end are greater than the 2nd voltage difference threshold value of setting;
Electric capacity pre-charge contactor control unit, it is set to when the first end of normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end are greater than the 2nd voltage difference threshold value of setting, the coil controlling described electric capacity pre-charge contactor obtains electric, until when the voltage difference of the first end of the normally opened contact of described capacitor high voltage contactor and the 2nd end is less than or equal to described 2nd voltage difference threshold value.
Preferably, described power distribution system also comprises Powertrain control distribution module, and described Powertrain control distribution module comprises control contactor; The two ends of the coil of described control contactor connect the 8th signal output terminal and the ground of described entire car controller respectively, and the first end of the normally opened contact of described control contactor connects described Chang Huo electricity, and the 2nd end connects electric machine control device and engine controller respectively;
The controller power supply control module of described Controlling System comprises:
5th judging unit, is set to judge that whether described one grade of electricity is effective, and whether whole car is in non-charging mode;
Control contactor control unit, is set at described one grade of electricity effective, and when whole car is in non-charging mode, the coil controlling described control contactor obtains electric;
6th judging unit, is set to judge whether whole car is in charge mode;
Described control contactor control unit, is also set to when whole car is in charge mode, controls the coil losing electricity of described control contactor after the time period of setting;
7th judging unit, is set to when whole car is in non-charging mode, judges whether described one grade of electricity lost efficacy, and whether the current rotating speed of engine is less than the rotary speed threshold value of setting;
Described control contactor control unit, is also set to lose efficacy at described one grade of electricity, and when the current rotating speed of engine is less than the rotary speed threshold value of setting, controls the coil losing electricity of described control contactor after the time period of setting.
Compared with prior art, the one or more embodiments in such scheme can have the following advantages or useful effect by tool:
Owing to plug-in hybrid system adds the energy storage element such as power battery pack, super capacitor group on the basis of conventional truck, so the delay cut-off function that has of power distribution system that the embodiment of the present invention the provides battery main contactor that makes power battery pack corresponding and electric capacity main contactor corresponding to super capacitor group can normally disconnect after one grade of electricity loses efficacy, described delay cut-off merit can also make entire car controller have the enough time to carry out data storage after one grade of electricity loses efficacy; In addition, battery main contactor and electric capacity main contactor are all controlled by entire car controller, it is thus possible to guarantee the safety that powers on, ensure that other parts can not be impacted by the distribution mode of accumulator system, the distribution of charging contactor is by vehicle control unit controls, and entire car controller and battery management system normal operation can be made when external charge power supply, ensure that charging is normal.
Other features and advantages of the present invention will be set forth in the following description, and partly become apparent from specification sheets, or understand by implementing the present invention. The object of the present invention and other advantages realize by structure specifically noted in specification sheets, claim book and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, with embodiments of the invention jointly for explaining the present invention, is not construed as limiting the invention. In the accompanying drawings:
Fig. 1 shows the structural representation of plug-in hybrid system;
Fig. 2 shows the structural representation of conventional truck power distribution system in prior art;
Fig. 3 shows in the embodiment of the present invention plug-in hybrid system power distribution system structural representation of distribution module about Chang Huo electricity part;
Fig. 4 shows in embodiment of the present invention plug-in hybrid system power distribution system about the structural representation of the distribution module of one grade of electricity part and the distribution module about the delay cut-off signal in Fig. 3;
Fig. 5 shows the schema of the delay cut-off control method of embodiment of the present invention plug-in hybrid system power distribution system;
Fig. 6 shows the schema of the battery pre-charging control method of embodiment of the present invention plug-in hybrid system power distribution system;
Fig. 7 shows the schema of the electric capacity precharge control method of embodiment of the present invention plug-in hybrid system power distribution system;
Fig. 8 shows the schema of the controller method for controlling power supply of embodiment of the present invention plug-in hybrid system power distribution system;
Fig. 9 shows the structural representation of the delay cut-off control module of embodiment of the present invention plug-in hybrid system power distribution system;
Figure 10 shows the structural representation of the battery pre-charging control module of embodiment of the present invention plug-in hybrid system power distribution system;
Figure 11 shows the structural representation of the electric capacity precharge control module of embodiment of the present invention plug-in hybrid system power distribution system;
Figure 12 shows the structural representation of the controller power supply control module of embodiment of the present invention plug-in hybrid system power distribution system.
Embodiment
Below with reference to drawings and Examples, embodiments of the present invention being described in detail, to the present invention, how utilisation technology means carry out technical solution problem whereby, and the process that realizes reaching technique effect can fully understand and implement according to this. It should be noted that, as long as not forming conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the technical scheme formed is all within protection scope of the present invention.
In order to solve in prior art, conventional truck power distribution system cannot to not needing the parts powered on to control always, and the power up requirement of each electric component of plug-in hybrid system cannot be met, embodiments provide a kind of plug-in hybrid system power distribution system and for the control method of this power distribution system and Controlling System.
Fig. 3 shows in the embodiment of the present invention plug-in hybrid system power distribution system structural representation of distribution module about Chang Huo electricity part, Fig. 4 shows in embodiment of the present invention plug-in hybrid system power distribution system about one grade of electric distribution module partly, and the structural representation of the distribution module about the delay cut-off signal in Fig. 3, for the ease of understanding, now the label in Fig. 3 and Fig. 4 is described: wherein the signal of same types represents with same letter code name, distinguish with different digital, signal output terminal V such as entire car controller represents, the control output signal that the numeral of next 1 to 11 is different, K represents the signal output terminal relevant to Chang Huo electricity, Y represents the signal output terminal relevant to one grade of electricity, D represents ground terminal, initial and the identical same signal of expression of digital quantity, as battery main contactor and electric capacity main contactor J8 are all controlled by the delay cut-off signal end that the two port of normally opened contact of the first rly. answers, represent with K3, get up to be clear that the concrete structure of the plug-in hybrid system power distribution system described in the embodiment of the present invention by signal end identical in Fig. 3 with Fig. 4 connection. this power distribution system comprises energy storage distribution module, and wherein said energy storage distribution module comprises the first relay J 1, the 2nd relay J 2, charging contactor J9, battery main contactor J7 and electric capacity main contactor J8.
Specifically; the two ends of the coil of described first relay J 1 connect the time delay signal output terminal V1 of Chang Huo electricity and entire car controller respectively; the first end of the normally opened contact of described first relay J 1 connects described Chang Huo electricity, and the 2nd end K3 of the normally opened contact of the first relay J 1 connects the output terminal C1 of the low tension of external charging power supply, battery management system (its power supply end is K2), the first end of normally opened contact of described battery main contactor J7, the first end of the normally opened contact of described electric capacity main contactor J8 and described entire car controller respectively. In addition; the two ends of the coil of described 2nd relay J 2 connect one grade of electricity and ground D1 respectively; the two ends of the coil of described 2nd relay J 2 connect one grade of electricity and ground D1 respectively; the first end of the normally opened contact of described 2nd relay J 2 connects described Chang Huo electricity, and the 2nd end of the normally opened contact of the 2nd relay J 2 connects the 2nd end K3 of the normally opened contact of described first relay J 1.
The two ends of the coil of described charging contactor J9 connect the charging signals output terminal V10 and ground D1 of described entire car controller respectively, the first end of the normally opened contact of described charging contactor J9 connects the output terminal W1 of the high voltage electric of described external charging power supply, and the 2nd end connects the positive pole of described power battery pack.
The two ends of the coil of described battery main contactor J7 connect the first signal output terminal V8 and ground D1 of described entire car controller respectively, and the 2nd end of the normally opened contact of described battery main contactor J7 connects the positive level of power battery pack; The two ends of the coil of described electric capacity main contactor J8 connect the second signal output terminal V9 and ground D1 of described entire car controller respectively, and the 2nd end of the normally opened contact of described electric capacity main contactor J8 connects the positive level of super capacitor group.
In the present embodiment, the distribution principle of entire car controller is: under normal circumstances, and the 2nd relay J 2 is controlled by one grade of electricity, when closed driver's platform seesaw switch, the coil of the 2nd relay J 2 obtains electric, and the normally opened contact of the 2nd relay J 2 closes, so that the power supply of entire car controller is effective, owing to increasing by the first relay J 1, so that whole power distribution system has the function of delay cut-off, when closing one grade and be electric, the delay cut-off control signal that entire car controller sends to the first relay J 1 is effective, so that the coil of the first relay J 1 obtains electric, the normally opened contact of the first relay J 1 closes, now (namely in the normally opened contact closed period of the first relay J 1) in reference time delay, the power supply of entire car controller is still effective, now entire car controller enables that battery main contactor J7 and electric capacity main contactor J8 is normally open carries out data storage simultaneously, avoid the data loss because one grade of electric power-off causes.
Structure according to above energy storage distribution module, the distribution principle of accumulator system is described: described energy storage distribution module relates generally to charging contactor J9, battery main contactor J7 and electric capacity main contactor J8, the wherein distribution of the corresponding charging unit of charging contactor J9, the distribution of the corresponding battery management system of battery main contactor J7, the distribution of the corresponding capacitance management system of electric capacity main contactor J8. From the structure of energy storage distribution module it will be seen that the distribution of battery management system and the distribution of entire car controller are consistent, it is convenient to the data after the data communication of battery management system and entire car controller and power-off and preserves. In addition, the charging signals that the coil power of charging contactor J9 exports by the charging signals output terminal V10 of entire car controller controls, when entire car controller detects that charging plug is in connection state, charging signals is sent to charging contactor J9 by charging signals output terminal V10, so that the coil of charging contactor J9 obtains electric, the normally opened contact of charging contactor J9 closes, thus external charging power supply starts charging; When entire car controller detection charging is full or charging plug is in separated position, disconnecting the normally opened contact of charging contactor J9, charging terminates. In addition; energy storage control enclosure is the Comprehensive Control unit of power battery pack and super capacitor group; when power battery pack and super capacitor group work, its power supply need to be in significant condition always, therefore it powers on, to get one grade of electricity comparatively suitable, if getting the words of Chang Huo electricity, has that Keep Clear-High Voltage.
For battery main contactor J7 and electric capacity main contactor J8, the selection of its contact power supply is also more crucial, when selecting Chang Huo electricity, can there is high pressure hidden danger, when select common one grade electric time, if driver is not related to the ON gear switch closing ignition switch and directly closes driver's platform seesaw switch, battery main contactor J7 and electric capacity main contactor J8 tripping will be caused, if now generator is also in generating, then easily superpressure causes the IGBT of engine controller inside breakdown, therefore the contact power supply of described battery main contactor J7 and electric capacity main contactor J8 is more suitable by delay cut-off control, therefore the coil power of described battery main contactor J7 is passed through the delay cut-off signal that time delay signal output terminal V1 exports and the first signal control exported by the first signal output terminal V8 by entire car controller, similarly, the coil power of described electric capacity main contactor J8 is passed through the delay cut-off signal that time delay signal output terminal V1 exports and the second signal control exported by second signal output terminal V9 by entire car controller, when needs closed main contactor, entire car controller makes respective signal effectively.
Owing to plug-in hybrid system adds the energy storage element such as power battery pack, super capacitor group on the basis of conventional truck, so the delay cut-off function that has of power distribution system that the embodiment of the present invention the provides battery main contactor J7 that makes power battery pack corresponding and electric capacity main contactor J8 corresponding to super capacitor group can normally disconnect after one grade of electricity loses efficacy, described delay cut-off merit can also make entire car controller have the enough time to carry out data storage after one grade of electricity loses efficacy; In addition, battery main contactor J7 and electric capacity main contactor J8 is all controlled by entire car controller, it is thus possible to guarantee the safety that powers on, ensure that other parts can not be impacted by the distribution mode of accumulator system, the distribution of charging contactor J9 is by vehicle control unit controls, and entire car controller and battery management system normal operation can be made when external charge power supply, ensure that charging is normal.
In a preferred embodiment of the present invention, for avoiding in whole overall height hydraulic circuit the excessive bigger electric current caused of voltage difference between battery high-voltage connecting tentaculum and the normally opened contact of capacitor high voltage contactor, described energy storage distribution module adds battery pre-charging contactor, battery pre-charging resistance, electric capacity pre-charge contactor and electric capacity pre-charge resistance (not showing pre-charge circuit in accompanying drawing), specifically, the coil of described battery pre-charging contactor is controlled by the 3rd signal that the 3rd signal output terminal of described entire car controller exports, after the normally opened contact of described battery pre-charging contactor and battery pre-charging serial battery, it is connected in parallel on the two ends of the normally opened contact of the battery high-voltage connecting tentaculum controlled by described battery main contactor J7 again, the coil of described electric capacity pre-charge contactor is controlled by the 4th signal that the 4th signal output terminal of described entire car controller exports, after the normally opened contact of described electric capacity pre-charge contactor is connected with electric capacity pre-charge resistance, then the two ends of the normally opened contact with the capacitor high voltage contactor controlled by electric capacity main contactor J8. here, it should be noted that, owing to one end of the coil of the battery high-voltage connecting tentaculum in whole overall height hydraulic circuit with the normally opened contact of the battery main contactor J7 in low-voltage control circuit is connected, so when the normally opened contact of battery main contactor J7 is closed, the coil of battery high-voltage connecting tentaculum obtains electric, such that it is able to say that battery high-voltage connecting tentaculum is controlled by battery main contactor J7. similarly, owing to one end of the coil of the capacitor high voltage contactor in whole overall height hydraulic circuit with the normally opened contact of the electric capacity main contactor J8 in low-voltage control circuit is connected, so when the normally opened contact of electric capacity main contactor J8 is closed, the coil of capacitor high voltage contactor obtains electric, such that it is able to say that capacitor high voltage contactor is controlled by electric capacity main contactor J8.
Described battery pre-charging contactor and described electric capacity pre-charge contactor power on logic class seemingly, only it is illustrated for the logic that powers on of battery pre-charging contactor: when the voltage difference that entire car controller detects between the normally opened contact of battery high-voltage connecting tentaculum is greater than voltage difference threshold value (those skilled in the art in specific implementation process can according to this voltage difference threshold value of concrete environment set) of setting, entire car controller sends the 3rd signal by its 3rd signal output terminal to the coil of battery pre-charging contactor, the coil of battery pre-charging contactor is obtained electric, the normally opened contact of battery pre-charging contactor closes, corresponding battery pre-charging contactor power supply is effective, when voltage difference between normally opened contact battery high-voltage connecting tentaculum being detected drops to a certain threshold value, the normally opened contact of vehicle control unit controls battery pre-charging contactor disconnects.
Further, owing to the heat radiation of electric component plays a part most important for its normal operation, and need in what situations it to be dispelled the heat, which type of measure of control is taked then to be had most important effect the energy-conservation work-ing life with heat-removal system, so the embodiment of the present invention additionally provides the heat radiation distribution module that the heat-removal system to hybrid power system carries out distribution, described heat radiation distribution module comprises energy storage fan contactor J5, motor and water pump contactor J4 and controller water pump contactor J6.
Specifically, the two ends of the coil of described energy storage fan contactor J5 connect the 5th signal output terminal V4 and ground D1 of described entire car controller respectively, and the first end of the normally opened contact of described energy storage fan connects described one grade of electricity, and the 2nd end connects energy storage fan; The coil of described motor and water pump contactor J4 connects the 6th signal output terminal V3 and ground D1 of described entire car controller respectively, and the first end of the normally opened contact of described motor and water pump contactor J4 connects described one grade of electricity, and the 2nd end connects motor and water pump; The two ends of the coil of described controller water pump contactor J6 connect the 7th signal output terminal V5 and ground D1 of described entire car controller respectively, and the first end of the normally opened contact of described controller water pump connects described one grade of electricity, the 2nd end connection control device water pump.
In the present embodiment, the Energy control of energy storage fan in whole car, motor and water pump, controller water pump etc. is all adopted vehicle control unit controls by the present invention, control corresponding contactor to close when entire car controller detects correspondence system temperature exceeding standard, correspondence system is worked, thus saved the energy consumption of system to a certain extent, it is to increase vehicle performance.
In the present invention one preferred embodiment, being also optimized by the distribution of electric motor fan T2 and engine fan T1, specifically, described heat radiation distribution module also comprises electric motor fan T2 distribution branch road and engine fan T1 distribution branch road; Wherein in described electric motor fan T2 distribution branch road, the power supply end of electric motor fan T2 connects described one grade of electricity, and the control end of described electric motor fan T2 connects the first pwm signal output terminal V7 of described entire car controller; In described engine fan T1 distribution branch road, the power supply end of engine fan T1 connects described one grade of electricity, and the control end of described engine fan T1 connects the 2nd pwm signal output terminal V6 of described entire car controller.
In this enforcement, engine fan T1 and electric motor fan T2 all adopts the soft startup control mode of PWM, entire car controller can according to cabin body temperature degree and cooling requirements reasonable adjusting first pwm signal of engine, motor and controller etc. and the dutycycle of the 2nd pwm signal, make engine fan T1 and electric motor fan T2 without the need to operating at full capacity always, substantially increase the working efficiency of fan and improve the work-ing life of fan.
Further, in another preferred embodiment of the present invention, also the distribution of Powertrain control unit is optimized, specifically, described power distribution system also comprises Powertrain control distribution module, and described Powertrain control distribution module comprises control contactor J3, the two ends of the coil of described control contactor J3 connect the 8th signal output terminal V2 and ground D1 of described entire car controller respectively, the first end of the normally opened contact of described control contactor J3 connects described Chang Huo electricity, and the 2nd end connects electric machine control device and engine controller respectively. as the contrast of the present embodiment, electric machine control device in conventional truck, powering on directly by the second gear electric control of driver's platform seesaw switch one grade of electricity and the ON gear switch of ignition switch of engine controller, and for plug-in hybrid system, because work without the need to motor and generator on the one hand always, described control contactor J3 must be controlled when external charge power supply charges on the other hand to disconnect, to reach energy-conservation, improve the object in controller work-ing life, therefore the distribution of electric machine control device and engine controller changes by vehicle control unit controls, entire car controller is by whole car running condition, the comprehensive descision such as battery electricity control powering on of electric machine control device and engine controller, save the work-ing life that simultaneously improve controller of system energy consumption.
Further, with reference to shown in Fig. 3 and Fig. 4, the described one grade of electric branch road of all connections arranges fusible cut-out, the branch road of the described Chang Huo electricity of described connection also arranges fusible cut-out, to ensure the safety of distribution.
In addition, it is noted that for entire car controller export all control signals in, except the first pwm signal and the 2nd pwm signal, all the other control signals are divided into Low level effective control signal and the effective control signal of high level, so that the power balance of entire car controller output signal. In the present invention one preferred embodiment, the signal output terminal that entire car controller exports Low level effective control signal has: time delay signal output terminal V1, the 3rd signal output terminal and the 4th signal output terminal; The signal output terminal that entire car controller exports the effective control signal of high level has: the 8th signal output terminal V2, the 6th signal output terminal V3, the 7th signal output terminal V5, the 5th signal output terminal V4, the first signal output terminal V8, second signal output terminal V9 and charging signals output terminal V10.
As shown in Figure 5, being the schema of the delay cut-off control method of embodiment of the present invention plug-in hybrid system power distribution system, described delay cut-off control method comprises the following steps:
Step 101: judge that whether one grade of electricity is effective;
Step 102: if not, then the coil controlling described first relay J 1 obtains electric, and start to record described first relay J 1 coil the electric time;
Step 103: judge that the described of record obtains the time delay the time whether electric time is greater than setting;
Step 104: if it does, then control the coil losing electricity of described first relay J 1.
In the present embodiment, when one grade of electric power-off, entire car controller is disconnected by control first relay J 1 time delay, the time delay disconnection of battery main contactor J7, capacitor switching contactor can be controlled, thus the risk that the IGBT avoiding above-mentioned engine controller inside is breakdown, thus effectively ensure that the normal operation of full-vehicle control module, substantially increase driving safety.
Further, Fig. 6 shows the schema of the battery pre-charging control method of embodiment of the present invention plug-in hybrid system power distribution system, and as shown in Figure 6, the battery pre-charging control method of described control method comprises the following steps:
Step 201: obtain the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the voltage difference of the 2nd end;
Step 202: judge whether the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the voltage difference of the 2nd end are greater than the first voltage difference threshold value of setting;
Step 203: if it does, then the coil controlling described battery pre-charging contactor obtains electric, until when the voltage difference of the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the 2nd end is less than or equal to described first voltage difference threshold value.
Fig. 7 shows the schema of the battery pre-charging control method of embodiment of the present invention plug-in hybrid system power distribution system, and as shown in Figure 7, the battery pre-charging control method of described control method comprises the following steps:
Step 301: obtain the first end of the normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end;
Step 302: judge whether the first end of the normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end are greater than the 2nd voltage difference threshold value of setting;
Step 303: if it does, then the coil controlling described electric capacity pre-charge contactor obtains electric, until when the voltage difference of the first end of the normally opened contact of described capacitor high voltage contactor and the 2nd end is less than or equal to described 2nd voltage difference threshold value.
In the present embodiment, by introducing battery pre-charging contactor and electric capacity pre-charge contactor and the control to two pre-charge contactor in energy storage distribution module, avoid the big current of the excessive generation of voltage difference between due to the normally opened contact of battery high-voltage connecting tentaculum, and the big current due to the excessive generation of voltage difference between the normally opened contact of capacitor high voltage contactor, further increase safe distribution of electric power and driving safety.
Further, Fig. 8 shows the schema of the controller method for controlling power supply of embodiment of the present invention plug-in hybrid system power distribution system, and as shown in Figure 8, the controller method for controlling power supply of described control method comprises the following steps:
Step 401: judge that whether described one grade of electricity is effective, and whether whole car is in non-charging mode;
Step 402: if it does, then the coil controlling described control contactor J3 obtains electric;
Step 403: judge whether whole car is in charge mode;
Step 404: if it does, then control the coil losing electricity of described control contactor J3 after the time period of setting;
Step 405: otherwise judge whether described one grade of electricity lost efficacy, and whether the current rotating speed of engine is less than the rotary speed threshold value of setting;
Step 406: if it does, then control the coil losing electricity of described control contactor J3 after the time period of setting.
In the present embodiment, high voltage electric can be there is in short period of time after electric machine control device, engine controller when disconnecting, electric machine control device, engine controller need to be kept to remain in operation to consume this part electricity, when after the time period time period of time delay (those skilled in the art can determine to need according to concrete enforcement operating mode in specific implementation process) of delay adjustments, then make the upper electric control of electric machine control device and engine controller invalid, namely make control contactor J3 disconnect, thus disconnect the power supply of electric machine control device and engine controller.
Correspondingly, the embodiment of the present invention additionally provides the Controlling System of described plug-in hybrid system power distribution system, Fig. 9 shows the structural representation of the delay cut-off control module of embodiment of the present invention plug-in hybrid system power distribution system, as shown in Figure 9, described delay cut-off Controlling System comprises:
First judging unit 501, is set to judge that whether one grade of electricity is effective;
First relay control unit 502, is set to when described one grade of electricity lost efficacy, and the coil controlling described first relay J 1 obtains electric;
Very first time record cell 503, be set to record described first relay J 1 coil the electric time;
2nd judging unit 504, is set to judge that the described of record obtains the time delay the time whether electric time is greater than setting;
Described first relay control unit 502, is also set to control the coil losing electricity of described first relay J 1 when obtaining the time delay time that the electric time is greater than setting described in recording.
In the present embodiment, by introducing battery pre-charging contactor and electric capacity pre-charge contactor and the control to two charging contactor J9 in energy storage distribution module, avoid the big current of the excessive generation of voltage difference between due to the normally opened contact of battery main contactor J7, and the big current due to the excessive generation of voltage difference between the normally opened contact of electric capacity main contactor J8, further increase safe distribution of electric power and driving safety.
Further, one preferred embodiment of the present invention additionally provides battery pre-charging control module and the electric capacity precharge control module of described Controlling System, Figure 10 shows the structural representation of the battery pre-charging control module of embodiment of the present invention plug-in hybrid system power distribution system, and the battery pre-charging control module of described Controlling System comprises:
First voltage difference acquiring unit 601, is set to the voltage difference of first end and the 2nd end obtaining the normally opened contact of described battery high-voltage connecting tentaculum;
3rd judging unit 602, is set to the first voltage difference threshold value judging whether the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the voltage difference of the 2nd end are greater than setting;
Battery pre-charging contactor control unit 603, it is set to when the first end of normally opened contact of described battery high-voltage connecting tentaculum and the voltage difference of the 2nd end are greater than the first voltage difference threshold value of setting, the coil controlling described battery pre-charging contactor obtains electric, until when the voltage difference of the first end of the normally opened contact of described battery high-voltage connecting tentaculum and the 2nd end is less than or equal to described first voltage difference threshold value.
Figure 11 shows the structural representation of the electric capacity precharge control module of embodiment of the present invention plug-in hybrid system power distribution system, and as shown in figure 11, the electric capacity precharge control module of described Controlling System comprises:
2nd voltage difference acquiring unit 701, is set to obtain the first end of the normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end;
4th judging unit 702, is set to judge whether the first end of the normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end are greater than the 2nd voltage difference threshold value of setting;
Electric capacity pre-charge contactor control unit 703, it is set to when the first end of normally opened contact of described capacitor high voltage contactor and the voltage difference of the 2nd end are greater than the 2nd voltage difference threshold value of setting, the coil controlling described electric capacity pre-charge contactor obtains electric, until when the voltage difference of the first end of the normally opened contact of described capacitor high voltage contactor and the 2nd end is less than or equal to described 2nd voltage difference threshold value.
Further, the present invention one preferred embodiment also provides controller power supply control module, Figure 12 shows the structural representation of the controller power supply control module of embodiment of the present invention plug-in hybrid system power distribution system, as shown in figure 12, the controller power supply control module of described Controlling System comprises:
5th judging unit 801, is set to judge that whether described one grade of electricity is effective, and whether whole car is in non-charging mode;
Control contactor control unit 802, is set at described one grade of electricity effective, and when whole car is in non-charging mode, the coil controlling described control contactor J3 obtains electric;
6th judging unit 803, is set to judge whether whole car is in charge mode;
Described control contactor control unit 802, is also set to when whole car is in charge mode, controls the coil losing electricity of described control contactor J3 after the time period of setting;
7th judging unit 804, is set to when whole car is in non-charging mode, judges whether described one grade of electricity lost efficacy, and whether the current rotating speed of engine is less than the rotary speed threshold value of setting;
Described control contactor control unit 802, is also set to lose efficacy at described one grade of electricity, and when the current rotating speed of engine is less than the rotary speed threshold value of setting, controls the coil losing electricity of described control contactor J3 after the time period of setting.
The concrete treating processes of above-mentioned each unit can refer to the description in the method for the embodiment of the present invention above, does not repeat them here.
The technician of this area should be understood that, each module of above-mentioned the present invention or each step can realize with general calculating device, they can concentrate on single calculating device, or it is distributed on network that multiple calculating device forms, can selection of land, they can realize with the program code that calculating device can perform, thus, they can be stored and perform by calculating device in the storage device, or they are made into respectively each integrated circuit modules, or the multiple module in them or step are made into single integrated circuit module realize. Like this, the present invention does not limit and combines in any specific hardware and software.
Although enforcement mode disclosed in this invention is as above, but the enforcement mode that described content just adopts for the ease of understanding the present invention, it does not mean to limit the present invention. Technician in any the technical field of the invention; under the prerequisite not departing from spirit and scope disclosed in this invention; any amendment and change can be done what implement in form and in details; but the scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims defines.