CN212500005U - Power device for hydrogen fuel cell passenger car - Google Patents
Power device for hydrogen fuel cell passenger car Download PDFInfo
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- CN212500005U CN212500005U CN202021737651.6U CN202021737651U CN212500005U CN 212500005 U CN212500005 U CN 212500005U CN 202021737651 U CN202021737651 U CN 202021737651U CN 212500005 U CN212500005 U CN 212500005U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a power device for hydrogen fuel cell passenger train, it includes vehicle control unit, transaxle, stores up hydrogen system and driving motor, its characterized in that: the hydrogen storage system is connected to a hydrogen fuel cell stack, the hydrogen fuel cell stack is connected with a motor controller through a DCDC booster, the motor controller controls the driving motor to rotate, the motor controller is further connected with a power battery pack, and the power battery pack is connected with the hydrogen fuel cell stack through a BMS and a vehicle control unit. The hydrogen fuel cell alone or together with the power cell provides continuous power, and the power cell provides peak power when the vehicle is started, climbs a slope, accelerates and other peak power demands; when the vehicle starting power demand is not large, the power battery can output energy independently; the braking energy recovery is completed by a power battery; the power battery technology is mature, and can make up for the technical defects of the hydrogen fuel battery to a certain extent.
Description
Technical Field
The utility model relates to a hydrogen fuel cell passenger train especially relates to a power device for hydrogen fuel cell passenger train, belongs to new energy automobile technical field.
Background
The new energy automobile has great significance for solving the problems of environmental pollution and energy crisis, and draws more and more attention. The hydrogen fuel cell automobile becomes a hotspot for electric automobile research due to no pollution and zero emission, and overcomes the defect of short driving range of the pure electric automobile. Meanwhile, the hydrogen fuel cell automobile has the advantages of high energy conversion efficiency, environmental friendliness and the like which are incomparable with internal combustion engine automobiles, and still maintains the performances of acceleration performance, high speed, long-distance running, safety, comfort and the like of the traditional internal combustion engine automobile.
At present, hydrogen fuel cell automobile technology is still in the research, development and demonstration operation stage, and a large number of problems need to be systematically considered and solved in the aspects of vehicle system technology, hydrogenation facilities, vehicle hydrogen storage, manufacturing cost, operation experience, standards and regulations, and the like, which requires close cooperation between governments, enterprises, research institutions and governments of various countries. Therefore, it is necessary to develop a technical solution research of a hydrogen fuel cell vehicle.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: a power device for a hydrogen fuel cell passenger car is provided, a proton exchange membrane fuel cell is used as a main power source of the hydrogen fuel cell passenger car, a lithium ion power cell is used as an auxiliary power source of a vehicle, an asynchronous alternating current motor is used as a driving motor of the vehicle, and an energy management strategy of the power device is determined.
The technical scheme of the utility model is that: the utility model provides a power device for hydrogen fuel cell passenger train, it includes vehicle control unit, transaxle, hydrogen storage system and driving motor, its characterized in that: the hydrogen storage system is connected to a hydrogen fuel cell stack, the hydrogen fuel cell stack is connected with a motor controller through a DCDC booster, the motor controller controls the driving motor to rotate, the motor controller is further connected with a power battery pack, and the power battery pack is connected with the hydrogen fuel cell stack through a BMS and a vehicle control unit.
And the hydrogen fuel cell stack is also connected with a hydrogen supply system and an accessory system.
The vehicle control unit is the brain of the hydrogen fuel cell passenger car and is responsible for detecting and managing the hydrogen fuel cell, the driving motor, the power steering system, the regenerative braking system and the auxiliary system.
The vehicle control unit is connected with the hydrogen fuel cell, the driving motor, the operation control system and the power system component through the CAN network, and performs detection, diagnosis and control on the whole vehicle, such as power control, energy management and the like.
The utility model has the advantages that: compared with the prior art, adopt the technical scheme of the utility model to proton exchange membrane fuel cell is as the main power source of hydrogen fuel cell passenger train, and lithium ion power battery is as the auxiliary power source of vehicle, and asynchronous alternating current motor is as the driving motor of vehicle, and confirms its energy management strategy. The hydrogen fuel cell alone or together with the power cell provides continuous power, and the power cell provides peak power when the vehicle is started, climbs a slope, accelerates and other peak power demands; when the vehicle starting power demand is not large, the power battery can output energy independently; the braking energy recovery is completed by a power battery; the power battery technology is mature, and can make up for the technical defects of the hydrogen fuel battery to a certain extent. During specific energy distribution, the VCU calculates the output power of the current hydrogen fuel cell system according to the SOC of the current power cell, the required power of the motor, the auxiliary power and the vehicle speed as inputs so as to ensure that the SOC of the power cell is balanced in a certain range, optimally meet the power performance index and the economic performance index of the whole vehicle and obtain good use effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the control system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1: as shown in the attached figures 1-2, the power device for the hydrogen fuel cell passenger car comprises a vehicle control unit, a drive axle, a hydrogen storage system and a drive motor, and is characterized in that: the hydrogen storage system is connected to a hydrogen fuel cell stack, the hydrogen fuel cell stack is connected with a motor controller through a DCDC booster, the motor controller controls the driving motor to rotate, the motor controller is further connected with a power battery pack, and the power battery pack is connected with the hydrogen fuel cell stack through a BMS and a vehicle control unit.
Further, a hydrogen supply system and an accessory system are connected to the hydrogen fuel cell stack.
Further, the vehicle control unit is the brain of the hydrogen fuel cell passenger car and is responsible for detecting and managing the hydrogen fuel cell, the driving motor, the power steering system, the regenerative braking system and the auxiliary system.
Furthermore, the vehicle control unit is connected with the hydrogen fuel cell, the driving motor, the operation control system and the power system component through the CAN network, and the vehicle control unit performs detection, diagnosis and control on the power control, energy management and the like on the vehicle.
The whole vehicle control system is the brain of the hydrogen fuel cell passenger vehicle and is responsible for detecting and managing a hydrogen fuel cell system, a driving motor system, a power steering system, a regenerative braking system and other auxiliary systems. The vehicle controller is connected with main parts of a power system such as a hydrogen fuel cell system, a driving motor system, a control system and the like through a CAN network, and performs detection, diagnosis and control on the whole vehicle such as power control, energy management and the like.
The utility model discloses power structure has alleviateed hydrogen fuel cell system's pressure owing to the existence of power battery group. The power battery pack has the functions of recovering the braking energy of the automobile and providing supplementary energy in the processes of starting, accelerating and climbing the automobile.
The utility model discloses main advantage of power structure lies in: 1) relatively reducing the power requirements of the hydrogen fuel cell; 2) hydrogen fuel cell systems are relatively easy; 3) in case of the failure of the hydrogen fuel cell, the power battery can still work, and the reliability of the system is high; 4) braking energy can be recovered.
The utility model discloses well hydrogen fuel cell power system uses the power supply mode of normal electricity and ON fender signal of telecommunication. The normal electricity provides low-voltage power for the hydrogen fuel cell system, and an ON gear signal is used as a wake-up and stop working signal. When the ON gear is ON the whole vehicle, the hydrogen fuel system receives the ON gear signal, the hydrogen fuel cell system is started from the dormant state, the system is powered ON at low voltage, the IGN (wake-up signal) reaches the ON state, and the hydrogen fuel system finishes the power-ON state. A control system booster (DCDC) of the hydrogen fuel cell system is directly connected with the whole vehicle high-voltage electricity, when the total positive and total negative of the whole vehicle power battery are connected, the DCDC system can carry out pre-charging processing, and the strip for self-diagnosing the whole vehicle without faults is adopted
The hydrogen fuel system is brought into a ready state. After the vehicle controller sends a starting signal, the hydrogen fuel system starts to start and operate, and the whole process cannot have more than two-stage faults. When the vehicle controller stops or a major fault occurs, the hydrogen fuel system can be automatically shut down.
The utility model discloses well hydrogen fuel cell system energy control:
in the pure electric mode, the hydrogen fuel cell system does not participate in the work, the power of the whole vehicle is provided by the power battery, and the energy of the power battery is distributed to the wheels through the driving motor and the controller to the main speed reducer and the differential mechanism, so that the driving of the vehicle is realized. Energy returns to the power battery from the driving motor, and energy recovery is realized;
in the hybrid mode, the electric energy generated by the hydrogen fuel cell system and the electric energy of the power battery are jointly transmitted to the driving motor, and the driving force generated by the driving motor is transmitted to the wheels to realize the driving of the vehicle. Energy returns to the power battery from the hydrogen fuel cell system and the driving motor together respectively to realize energy recovery;
in the idle mode, energy is driven by a fuel cell system to generate electricity and flows into the power battery through the DCDC, so that the power battery is charged; in the charging mode of driving, energy flows to the power battery, the driving motor and the controller respectively through the hydrogen fuel cell system, so that the charging of the power battery and the driving of the whole vehicle are realized.
The utility model discloses hydrogen fuel cell passenger train control system mainly comprises whole car control system, hydrogen storage system, hydrogen fuel cell system, auxiliary control system, power battery system, driving motor system etc. and distributed control system is constituteed through the CAN bus to each component, and what adopt is the double energy form of parallel. The hydrogen fuel cell is used as a main energy source and provides main power for running of the vehicle; the power battery pack is an auxiliary energy source and provides instantaneous large torque during the running of the automobile.
In the utility model, the hydrogen fuel cell alone or together with the power battery provides continuous power, and the power battery provides peak power when the vehicle is started, climbs and accelerates; when the vehicle starting power demand is not large, the power battery can output energy independently; the braking energy recovery is completed by a power battery; the power battery technology is mature, and can make up for the technical defects of the hydrogen fuel battery to a certain extent.
During specific energy distribution, the VCU calculates the output power of the current hydrogen fuel cell system according to the SOC of the current power cell, the required power of the motor, the auxiliary power and the vehicle speed as inputs so as to ensure that the SOC of the power cell is balanced in a certain range and optimally meet the power performance index and the economic performance index of the whole vehicle.
In the utility model, the hydrogen fuel cell alone or together with the power battery provides continuous power, and the power battery provides peak power when the vehicle is started, climbs and accelerates; when the vehicle starting power demand is not large, the power battery can output energy independently; the braking energy recovery is completed by a power battery; the power battery technology is mature, and can make up for the technical defects of the hydrogen fuel battery to a certain extent.
A proton exchange membrane fuel cell is used as a main power source of a hydrogen fuel cell passenger car, a lithium ion power cell is used as an auxiliary power source of a vehicle, an asynchronous alternating current motor is used as a driving motor of the vehicle, and an energy management strategy of the vehicle is determined. The hydrogen fuel cell alone or together with the power cell provides continuous power, and the power cell provides peak power when the vehicle is started, climbs a slope, accelerates and other peak power demands; when the vehicle starting power demand is not large, the power battery can output energy independently; the braking energy recovery is completed by a power battery; the power battery technology is mature, and can make up for the technical defects of the hydrogen fuel battery to a certain extent. During specific energy distribution, the VCU calculates the output power of the current hydrogen fuel cell system according to the SOC of the current power cell, the required power of the motor, the auxiliary power and the vehicle speed as inputs so as to ensure that the SOC of the power cell is balanced in a certain range, optimally meet the power performance index and the economic performance index of the whole vehicle and obtain good use effect.
The utility model has the advantages that: 1) relatively reducing the power requirements of the hydrogen fuel cell; 2) hydrogen fuel cell systems are relatively easy; 3) in case of the failure of the hydrogen fuel cell, the power battery can still work, and the reliability of the system is high; 4) braking energy can be recovered.
The parts of the present invention not described in detail are the known techniques of those skilled in the art. Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (4)
1. The utility model provides a power device for hydrogen fuel cell passenger train, it includes vehicle control unit, transaxle, hydrogen storage system and driving motor, its characterized in that: the hydrogen storage system is connected to a hydrogen fuel cell stack, the hydrogen fuel cell stack is connected with a motor controller through a DCDC booster, the motor controller controls the driving motor to rotate, the motor controller is further connected with a power battery pack, and the power battery pack is connected with the hydrogen fuel cell stack through a BMS and a vehicle control unit.
2. The power plant for a hydrogen fuel cell passenger vehicle according to claim 1, characterized in that: and the hydrogen fuel cell stack is also connected with a hydrogen supply system and an accessory system.
3. The power plant for a hydrogen fuel cell passenger vehicle according to claim 1, characterized in that: the vehicle control unit is the brain of the hydrogen fuel cell passenger car and is responsible for detecting and managing the hydrogen fuel cell, the driving motor, the power steering system, the regenerative braking system and the auxiliary system.
4. The power plant for a hydrogen fuel cell passenger vehicle according to claim 1, characterized in that: the vehicle control unit is connected with the hydrogen fuel cell, the driving motor, the operation control system and the power system component through the CAN network, and performs power control and energy management detection, diagnosis and control on the whole vehicle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021737651.6U CN212500005U (en) | 2020-08-19 | 2020-08-19 | Power device for hydrogen fuel cell passenger car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021737651.6U CN212500005U (en) | 2020-08-19 | 2020-08-19 | Power device for hydrogen fuel cell passenger car |
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| CN212500005U true CN212500005U (en) | 2021-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117622097A (en) * | 2024-01-25 | 2024-03-01 | 江西五十铃汽车有限公司 | Power switching energy recovery method, system, readable storage medium and vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117622097A (en) * | 2024-01-25 | 2024-03-01 | 江西五十铃汽车有限公司 | Power switching energy recovery method, system, readable storage medium and vehicle |
| CN117622097B (en) * | 2024-01-25 | 2024-10-25 | 江西五十铃汽车有限公司 | Power switching energy recovery method, system, readable storage medium and vehicle |
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