CN215244356U - Energy feedback management system for hydrogen energy automobile - Google Patents
Energy feedback management system for hydrogen energy automobile Download PDFInfo
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- CN215244356U CN215244356U CN202023017672.3U CN202023017672U CN215244356U CN 215244356 U CN215244356 U CN 215244356U CN 202023017672 U CN202023017672 U CN 202023017672U CN 215244356 U CN215244356 U CN 215244356U
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Abstract
The utility model discloses a hydrogen energy automobile energy repayment management system. The system comprises a vehicle control unit, a display module, an energy storage device, a motor controller, a fuel cell controller and a brake controller, wherein the vehicle control unit is electrically connected with the display module, the energy storage device, the motor controller, the fuel cell controller and the brake controller respectively, and the brake controller is electrically connected with a wheel speed sensor and a brake pedal stroke sensor respectively. The utility model discloses initiate braking energy repayment by brake controller can very big improvement energy repayment efficiency, accomplish by motor regenerative braking completely when braking deceleration is lower, braking energy is converted into the electric energy and is stored energy memory by the motor completely, improves braking energy recovery efficiency; the energy of the fuel cell system can be recovered, and the application of the travel sensor of the brake pedal can calculate the braking deceleration of the vehicle, so that the economy and the safety of the braking energy recovery are greatly improved; the speed of a vehicle is calculated by adopting the input of the wheel speed sensor to the brake controller, and the speed of the vehicle is more accurate than the speed of the vehicle calculated by using the rotation speed of the motor indirectly.
Description
Technical Field
The utility model relates to a hydrogen energy car technical field especially relates to a hydrogen energy car energy repayment management system.
Background
The hydrogen energy automobile is rapidly developed in China, various performance indexes reach the operation requirement, and the large-scale industrialization is started to be carried forward. However, a new energy system is to be popularized and applied, the environmental protection and the economic efficiency of the new energy system should be paid attention first, and how to improve the environmental protection and the economic efficiency of the energy feedback control system of the hydrogen energy automobile is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydrogen energy car energy repayment management system of very big improvement energy repayment efficiency to the above-mentioned not enough of prior art.
The utility model discloses a hydrogen energy automobile energy feedback management system, which comprises a vehicle control unit, a brake controller, a brake pedal travel sensor, a wheel speed sensor, a display module, an energy storage device, a motor controller and a fuel cell controller; the vehicle control unit is respectively electrically connected with the display module, the energy storage device, the motor controller, the fuel cell controller and the brake controller, and the brake controller is respectively electrically connected with the wheel speed sensor and the brake pedal stroke sensor.
Furthermore, the brake controller is electrically connected with the wheel speed sensor through a hard wire.
Furthermore, the display module comprises a control circuit and a liquid crystal screen, the vehicle control unit communicates with the control circuit through a CAN bus, the control circuit communicates with the liquid crystal screen through a serial port communication line, the control circuit is used for processing a mode signal sent by the vehicle control unit to obtain corresponding energy flow diagram information and transmitting the corresponding energy flow diagram information to the liquid crystal screen, and the liquid crystal screen displays a corresponding energy flow diagram.
Further, the energy flow graph is displayed on the liquid crystal screen in an animation mode and comprises a structural graph consisting of a fuel cell, an energy storage device, a motor and a wheel, and a dynamic line representing the energy flow direction between the fuel cell, the energy storage device, the motor and the wheel.
Further, the display module is assembled on the multimedia player.
The utility model discloses a management method of hydrogen energy car energy repayment management system, braking energy recovery trigger condition is as follows:
1.1 when the vehicle is in a Ready state, the brake controller receives a Ready signal sent by the vehicle controller;
1.2, the vehicle speed is more than or equal to 10km/h, the brake controller sends a vehicle speed signal to the vehicle control unit, wherein the vehicle speed is obtained by inputting the vehicle speed signal to the brake controller through a wheel speed sensor;
1.3 the gear of the vehicle is D gear or R gear, and the brake controller receives a gear signal sent by the vehicle controller and takes D gear or R gear;
1.4, the opening degree of the brake pedal is more than 0%, and the brake pedal stroke signal sent by the brake pedal stroke sensor received by the brake controller is more than 0%;
1.5 no fault for prohibiting energy recovery occurs;
if all conditions of 1.1-1.5 are met, the vehicle can enter a braking energy recovery mode, the braking controller calculates and sends braking feedback torque to the vehicle control unit according to a braking pedal stroke opening signal of a braking pedal stroke sensor, peak charging power of the energy storage device and the maximum power generation torque sent by the motor controller, the vehicle control unit is responsible for executing the braking feedback torque and sending a torque request to the motor controller for execution, the motor controller operates in a power generation mode to charge the energy storage device, and meanwhile, the fuel cell controller can also operate in a power generation mode according to required power sent by the vehicle control unit to charge the energy storage device;
and if any one of the conditions 1.1-1.5 is not met, the braking energy recovery mode is exited.
Further, in condition 1.5, the ABS function of the brake anti-lock braking system of the brake controller is not activated, the ESC function of the electronic stability system is not activated, the vehicle speed sent by the brake controller is valid, the vehicle traveling direction is consistent with the vehicle gear sent by the vehicle controller, the cruise mode sent by the vehicle controller is not in the cruise mode, and the like, and all the systems do not enter the failure mode.
The utility model discloses a management method of hydrogen energy car energy repayment management system, the energy recovery trigger condition that slides is as follows:
2.1 when the vehicle is in the Ready state, the brake controller receives the Ready signal sent by the vehicle controller;
2.2, the vehicle speed is more than or equal to 10km/h, the brake controller sends a vehicle speed signal to the vehicle control unit, wherein the vehicle speed is obtained by inputting the vehicle speed signal to the brake controller through a wheel speed sensor;
2.3 the gear of the vehicle is D gear or R gear, and the brake controller receives a gear signal sent by the vehicle controller and takes D gear or R gear;
2.4, the opening of the brake pedal is equal to 0%, and a brake pedal stroke signal sent by the brake pedal stroke sensor received by the brake controller is equal to 0%;
2.5 no failure to prohibit energy recovery occurs;
2.6 the opening degree of the accelerator is less than 8 percent; the throttle opening degree signal sent by the whole vehicle controller is less than 8%;
when the conditions are met, the vehicle can enter a sliding energy recovery mode, the vehicle controller calculates the required torque of the motor according to the target deceleration Zg of the vehicle, the peak charging power of the energy storage device and the maximum power generation torque sent by the motor controller and sends the required torque to the motor controller for execution, the motor controller operates in a power generation mode to charge the energy storage device, and meanwhile, the fuel cell controller also operates in a power generation mode according to the required power sent by the vehicle controller to charge the energy storage device; wherein the value of the target deceleration Zg is set as required.
Further, in condition 2.5, the ABS function of the brake anti-lock braking system of the brake controller is not activated, the ESC function of the electronic stability system is not activated, the vehicle speed sent by the brake controller is valid, the vehicle traveling direction is consistent with the vehicle gear sent by the vehicle controller, the cruise mode sent by the vehicle controller is not in the cruise mode, and the like, and all the systems do not enter the failure mode.
The utility model discloses a hydrogen energy car energy repayment management system initiates braking energy repayment by brake controller can very big improvement energy repayment efficiency, is accomplished by motor regenerative braking completely when braking deceleration is lower, and braking energy is converted into electric energy and is stored energy memory by the motor completely, improves braking energy recovery efficiency; the energy of the fuel cell system can be recovered, and the application of the travel sensor of the brake pedal can calculate the braking deceleration of the vehicle, so that the economy and the safety of the braking energy recovery are greatly improved; the speed of the vehicle is calculated by adopting the input of a wheel speed sensor to a brake controller, and the speed of the vehicle is more accurate than the speed of the vehicle calculated by using the rotation speed of a motor indirectly; the abundant energy flow shows, brings more enjoyment for driver's driving.
Drawings
Fig. 1 is a schematic structural diagram of a hydrogen energy automobile energy feedback management system of the present invention;
fig. 2 is a flowchart of a management method of the energy feedback management system of a hydrogen energy vehicle according to the present invention;
fig. 3 is an energy flow diagram of pure electric mode energy feedback of the energy feedback management system of a hydrogen energy vehicle of the present invention;
fig. 4 is an energy flow diagram of hybrid mode energy feedback of the energy feedback management system of a hydrogen energy vehicle of the present invention;
fig. 5 is a schematic structural diagram of a display module of the energy feedback management system of a hydrogen energy vehicle according to the present invention.
1-a vehicle control unit; 2-a brake controller; 3-brake pedal travel sensor; 4-wheel speed sensor; 5-a display module; 6-an energy storage device; 7-a motor controller; 8-a fuel cell controller; 9-a fuel cell; 10-a motor; 11-a wheel; 12-dynamic line; 13-a multimedia player; 14-a control circuit; 15-liquid crystal screen.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, the utility model discloses a hydrogen energy automobile energy feedback management system, including vehicle control unit 1, brake controller 2, brake pedal travel sensor 3, wheel speed sensor 4, display module 5, energy storage device 6, motor controller 7, fuel cell controller 8; the vehicle control unit 1 is respectively electrically connected with the display module 5, the energy storage device 6, the motor controller 7, the fuel cell controller 8 and the brake controller 2, and the brake controller 2 is respectively electrically connected with the wheel speed sensor 4 and the brake pedal stroke sensor 3.
The brake pedal stroke sensor 3 is used for acquiring the stroke of the brake pedal;
the brake controller 2 is used for acquiring signals of a brake pedal stroke sensor 3, wheel speed signals and the like, and realizing the functions of anti-lock of wheels 11, electronic brake force distribution, vehicle dynamic control, driving anti-skid control and the like;
the wheel speed sensor 4 acquires the wheel speed of the four wheels and sends the wheel speed to the brake pedal travel sensor 3 through a hard wire signal;
the vehicle control unit 1 is used for analyzing the requirements of a driver, managing energy, managing torque, processing faults, displaying a lamp of an instrument, powering on and powering off under high voltage and the like;
the display module 5 is used as a combination meter to display important information such as the gear position and the speed of the vehicle;
the energy storage device 6 serves to store electrical energy and to assist the fuel cell 9 in starting.
The fuel cell controller 8 is used for collecting key voltage, current and temperature data of the fuel system and controlling all electrical parts such as a hydrogen circulating pump, an air compressor, a water pump and the like in the system.
When a vehicle enters a braking energy recovery mode, a braking controller 2 calculates and sends braking feedback torque to a vehicle control unit 1 according to a braking pedal stroke opening signal of a braking pedal stroke sensor 3, peak charging power of an energy storage device 6 and maximum power generation torque sent by a motor controller 7, the vehicle control unit 1 is responsible for executing the braking feedback torque and sending a torque request to the motor controller 7 for execution, the motor controller 7 operates in a power generation mode to charge the energy storage device 6, and meanwhile, a fuel cell controller 8 can also operate in a power generation mode according to required power sent by the vehicle control unit 1 to charge the energy storage device 6.
When a vehicle enters a sliding energy recovery mode, the vehicle control unit 1 calculates a required torque of a motor 10 according to a target deceleration Zg of the vehicle, a peak charging power of the energy storage device 6 and a maximum power generation torque sent by the motor controller 7 and sends the required torque to the motor controller 7 for execution, the motor controller 7 operates in a power generation mode to charge the energy storage device 6, and meanwhile, the fuel cell controller 8 also operates in a power generation mode according to the required power sent by the vehicle control unit 1 to charge the energy storage device 6; wherein the value of the target deceleration Zg is set as required.
The utility model discloses a hydrogen energy car energy repayment management system initiates braking energy repayment by brake controller 2 can very big improvement energy repayment efficiency, is accomplished by motor 10 regenerative braking completely when braking deceleration is lower, and braking energy is converted into the electric energy and is stored energy memory 6 by motor 10 completely, improves braking energy recovery efficiency; the energy of the fuel cell 9 system can be recovered, and the application of the brake pedal stroke sensor 3 can calculate the braking deceleration of the vehicle, thereby greatly improving the economy and safety of the braking energy recovery.
The brake controller 2 may be electrically connected to the wheel speed sensor 4 by a hard wire.
As shown in fig. 5, the display module 5 has various structures, in this embodiment, the display module 5 may include a control circuit 14 and a liquid crystal display 15, the vehicle control unit 1 communicates with the control circuit 14 through a CAN bus, the control circuit 14 communicates with the liquid crystal display 15 through a serial communication line, the control circuit 14 is configured to process a mode signal sent by the vehicle control unit 1, obtain corresponding energy flow diagram information, and transmit the energy flow diagram information to the liquid crystal display 15, and the liquid crystal display 15 displays a corresponding energy flow diagram.
The energy flow diagram is displayed in animation on the liquid crystal screen 15, and comprises a structural diagram consisting of the fuel cell 9, the energy storage device 6, the motor 10 and the wheel 11, and a dynamic line 12 indicating the energy flow direction between them. The abundant energy flow shows, brings more enjoyment for driver's driving. For example: as shown in fig. 3, the energy flow of the pure electric mode energy feedback (including braking energy feedback and coasting energy feedback) shows: from the wheels 11 to the electric machine 10 to the energy storage means 6; and (3) displaying the energy flow of the mixed mode energy feedback (including braking energy feedback and sliding energy feedback): as shown in fig. 4, from the wheel 11 to the electric motor 10 to the energy storage device 6; from the hydrogen fuel cell 9 to the energy storage means 6.
As shown in fig. 5, the display module 5 may be provided in various positions, which are not limited herein, and the display module 5 may be mounted on the multimedia player 13 for the convenience of the user and the decoration effect of the interior of the car.
As shown in fig. 2, the braking energy recovery triggering conditions of the management method of the energy feedback management system for hydrogen vehicles of the present invention are as follows:
1.1 the vehicle is in Ready state, the brake controller 2 receives Ready signal sent by the vehicle controller 1.
1.2, the vehicle speed is more than or equal to X km/h, the brake controller 2 sends a vehicle speed signal to the vehicle control unit 1, wherein the vehicle speed is obtained by inputting the vehicle speed signal to the brake controller 2 through the wheel speed sensor 4; the speed of the vehicle is calculated by adopting the input of the wheel speed sensor 4 to the brake controller 2, which is more accurate than the speed of the vehicle calculated by using the rotation speed of the motor 10 indirectly.
1.3 the vehicle gear is D gear or R gear, and the brake controller 2 receives the gear signal sent by the vehicle controller 1 and is D gear or R gear.
1.4 the opening degree of the brake pedal is more than 0 percent, and the brake controller 2 receives the brake pedal travel signal sent by the brake pedal travel sensor 3 and is more than 0 percent.
1.5 no fault for prohibiting energy recovery occurs; the method comprises the steps that the ABS function of a brake anti-lock braking system of the brake controller 2 is not activated, the ESC function of the electronic stability system is not activated, the speed of the vehicle sent by the brake controller 2 is effective, the vehicle running direction is consistent with the vehicle gear sent by the whole vehicle controller 1, the cruise mode sent by the whole vehicle controller 1 is not in the cruise mode, and the like, and all the systems do not enter a fault mode.
If all conditions of 1.1-1.5 are met, the vehicle enters a braking energy recovery mode, the braking controller 2 calculates and sends braking feedback torque to the vehicle control unit 1 according to a braking pedal stroke opening signal of the braking pedal stroke sensor 3, peak charging power of the energy storage device 6 and maximum power generation torque sent by the motor controller 7, the vehicle control unit 1 is responsible for executing the braking feedback torque and sending a torque request to the motor controller 7 for execution, the motor controller 7 operates in a power generation mode to charge the energy storage device 6, and meanwhile, the fuel cell controller 8 can also operate in a power generation mode according to required power sent by the vehicle control unit 1 to charge the energy storage device 6;
and if any condition of the conditions 1.1-1.5 is not met, the braking energy recovery mode is exited.
The coasting energy recovery triggering conditions are as follows:
2.1 when the vehicle is in a Ready state, the brake controller 2 receives a Ready signal sent by the vehicle controller 1;
2.2, the vehicle speed is more than or equal to 10km/h, the brake controller 2 sends a vehicle speed signal to the vehicle control unit 1, wherein the vehicle speed is obtained by inputting the vehicle speed signal to the brake controller 2 through the wheel speed sensor 4; the speed of the vehicle is calculated by adopting the input of the wheel speed sensor 4 to the brake controller 2, which is more accurate than the speed of the vehicle calculated by using the rotation speed of the motor 10 indirectly.
And 2.3, the gear of the vehicle is in a D gear or an R gear, and the brake controller 2 receives a gear signal sent by the vehicle controller 1 and is in the D gear or the R gear.
2.4 the opening degree of the brake pedal is equal to 0 percent, and the brake controller 2 receives a brake pedal travel signal sent by the brake pedal travel sensor 3 and is equal to 0 percent.
2.5 no failure to prohibit energy recovery occurs; the method comprises the steps that the ABS function of a brake anti-lock braking system of the brake controller 2 is not activated, the ESC function of the electronic stability system is not activated, the speed of the vehicle sent by the brake controller 2 is effective, the vehicle running direction is consistent with the vehicle gear sent by the whole vehicle controller 1, the cruise mode sent by the whole vehicle controller 1 is not in the cruise mode, and the like, and all the systems do not enter a fault mode.
2.6 the opening degree of the accelerator is less than 8 percent; the throttle opening degree signal sent by the vehicle control unit 1 is less than 8%.
When the conditions are met, the vehicle can enter a sliding energy recovery mode, the vehicle controller 1 calculates the torque required by the motor 10 according to the target deceleration Zg of the vehicle, the peak charging power of the energy storage device 6 and the maximum power generation torque sent by the motor controller 7 and sends the torque to the motor controller 7 for execution, the motor controller 7 operates in a power generation mode to charge the energy storage device 6, and meanwhile, the fuel cell controller 8 also operates in a power generation mode according to the required power sent by the vehicle controller 1 to charge the energy storage device 6; wherein the value of the target deceleration Zg is set as required.
The above is not relevant and is applicable to the prior art.
Although certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention, which is to be construed as broadly as the present invention will suggest themselves to those skilled in the art to which the invention pertains and which is susceptible to various modifications or additions and similar arrangements to the specific embodiments described herein without departing from the scope of the invention as defined in the appended claims. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like made to the above embodiments according to the technical spirit of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a hydrogen energy car energy repayment management system which characterized in that: the device comprises a vehicle control unit (1), a brake controller (2), a brake pedal stroke sensor (3), a wheel speed sensor (4), a display module (5), an energy storage device (6), a motor controller (7) and a fuel cell controller (8); the vehicle control unit (1) is respectively electrically connected with the display module (5), the energy storage device (6), the motor controller (7), the fuel cell controller (8) and the brake controller (2), and the brake controller (2) is respectively electrically connected with the wheel speed sensor (4) and the brake pedal stroke sensor (3).
2. The energy feedback management system of claim 1, wherein: the brake controller (2) is electrically connected with the wheel speed sensor (4) through a hard wire.
3. The energy feedback management system of claim 1, wherein: the display module (5) comprises a control circuit (14) and a liquid crystal screen (15), the vehicle control unit (1) is communicated with the control circuit (14) through a CAN bus, the control circuit (14) is communicated with the liquid crystal screen (15) through a serial port communication line, the control circuit (14) is used for processing a mode signal sent by the vehicle control unit (1), corresponding energy flow graph information is obtained and transmitted to the liquid crystal screen (15), and the liquid crystal screen (15) displays a corresponding energy flow graph.
4. The energy feedback management system of claim 3, wherein: the energy flow diagram is displayed on the liquid crystal screen (15) in an animation mode and comprises a structural diagram consisting of a fuel cell (9), an energy storage device (6), a motor (10) and wheels (11), and a dynamic line (12) representing the energy flow direction between the fuel cell, the energy storage device, the motor and the wheels.
5. The energy feedback management system of claim 3, wherein: the display module (5) is assembled on the multimedia player (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023017672.3U CN215244356U (en) | 2020-12-15 | 2020-12-15 | Energy feedback management system for hydrogen energy automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023017672.3U CN215244356U (en) | 2020-12-15 | 2020-12-15 | Energy feedback management system for hydrogen energy automobile |
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| CN215244356U true CN215244356U (en) | 2021-12-21 |
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| CN202023017672.3U Active CN215244356U (en) | 2020-12-15 | 2020-12-15 | Energy feedback management system for hydrogen energy automobile |
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