CN113415179A - Hydrogen fuel cell passenger car hybrid power driving system and control method - Google Patents

Hydrogen fuel cell passenger car hybrid power driving system and control method Download PDF

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Publication number
CN113415179A
CN113415179A CN202110881915.8A CN202110881915A CN113415179A CN 113415179 A CN113415179 A CN 113415179A CN 202110881915 A CN202110881915 A CN 202110881915A CN 113415179 A CN113415179 A CN 113415179A
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China
Prior art keywords
power
fuel cell
hydrogen fuel
cell unit
battery pack
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Pending
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CN202110881915.8A
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Chinese (zh)
Inventor
江涛
李洪达
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Chery and Wanda Guizhou Bus Co Ltd
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Chery and Wanda Guizhou Bus Co Ltd
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Priority to CN202110881915.8A priority Critical patent/CN113415179A/en
Publication of CN113415179A publication Critical patent/CN113415179A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/75—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/007—Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • 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
    • 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
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a hybrid power driving system and method for a hydrogen fuel cell passenger car, wherein the driving system comprises a hydrogen fuel cell unit, a power cell pack, an electronic interface device, a motor controller, a driving motor, a transmission device, wheels and a vehicle control unit, the hydrogen fuel cell unit is connected with the power cell pack in series, the power cell pack is electrically connected with the motor controller through the electronic interface device, the motor controller is connected with the driving motor, the driving motor is connected with the transmission device, the transmission device is connected with the wheels, the motor controller, the electronic interface device, the power cell pack and the hydrogen fuel cell unit are respectively and electrically connected with the vehicle control unit, and the vehicle control unit is electrically connected with a brake pedal and an accelerator pedal. The invention can recover partial kinetic energy of the automobile during braking by using the power battery pack, increases the energy efficiency of the whole automobile, improves the efficiency of the hydrogen fuel battery unit and greatly reduces the cost of the whole automobile.

Description

Hydrogen fuel cell passenger car hybrid power driving system and control method
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to a hybrid power driving system of a hydrogen fuel cell passenger car and a control method.
Background
The pollution of the traditional internal combustion engine automobile to the environment is not a little, the problems of haze, poor air quality, greenhouse effect and the like are greatly related to the traditional internal combustion engine automobile, and therefore the development of a novel automobile is accelerated. In the face of increasingly prominent environmental problems and energy crisis, new automobiles are vigorously developed in various countries of the world, and fuel cell automobiles become one of the key areas of development with their own advantages.
The fuel cell automobile is a new energy automobile taking a fuel cell system as the power of the automobile, and the fuel cell can convert chemical energy into electric energy. However, the pure fuel cell vehicle only has one power source, all power loads of the vehicle are borne by the fuel cell, the pure fuel cell system transmits electric energy generated by reaction of hydrogen and oxygen to the driving motor through the bus, and the driving motor converts the electric energy into mechanical energy and transmits the mechanical energy to the transmission system, so that the vehicle is driven to move forward. This kind of electricity drives system simple structure, part are few, be convenient for realize system control, whole arrangement and whole car lightweight, and the transfer efficiency of energy is high with the fuel economy of whole car, but it has fatal shortcoming: 1) the requirement on the power of the fuel cell system is higher, so that the cost of the whole vehicle is higher; 2) the braking energy can not be recovered, and energy waste exists.
Disclosure of Invention
Based on the problems, the invention provides a hydrogen fuel cell passenger car hybrid power driving system and a control method, which utilize a combined driving mode of a hydrogen fuel cell unit and a power battery pack to reduce the whole car cost, recover braking energy and improve the energy utilization rate of the whole car.
The invention adopts the technical scheme that the hybrid power driving system of the hydrogen fuel cell passenger car comprises a hydrogen fuel cell unit, a power cell pack, an electronic interface device, a motor controller, a driving motor, a transmission device, wheels and a vehicle control unit, wherein the electronic interface device is connected to the hydrogen fuel cell unit, the power cell pack, the motor controller and the vehicle control unit, the vehicle control unit is connected with the hydrogen fuel cell unit, the power cell pack, the motor controller, a wheel speed measuring sensor, a brake pedal and an accelerator pedal, the motor controller is connected with the driving motor, the driving motor is connected with the wheels through the transmission device, and the wheel speed measuring sensor is installed on the wheels.
Preferably, the hydrogen fuel cell unit and the power battery pack are connected through a DC/DC converter in the electronic interface device, and the power battery pack and the motor controller are connected through a DC/AC converter and a DC/AC inverter in the electronic interface device.
A control method of a hybrid power driving system of a hydrogen fuel cell passenger car comprises the steps that a vehicle control unit obtains instruction signals from a brake pedal or an accelerator pedal and sends the instruction signals to an electronic interface device and a motor control unit, and if the input power of a driving motor is larger than the rated power of a hydrogen fuel cell unit, the hydrogen fuel cell unit and a power cell pack supply power to the driving motor at the same time; if the input power of the driving motor is smaller than the preset minimum power of the hydrogen fuel cell unit and the SOC of the power storage amount of the power battery pack is smaller than 20%, the hydrogen fuel cell unit supplies power to the driving motor, the SOC of the power storage amount of the power battery pack is larger than 90%, and the power battery pack supplies power to the driving motor; and when the input power of the driving motor is less than the rated power of the hydrogen fuel cell unit and not less than the preset minimum power of the hydrogen fuel cell unit, the hydrogen fuel cell supplies power to the driving motor.
Preferably, when the input power of the driving motor is less than the preset minimum power of the hydrogen fuel cell unit and the power storage SOC of the power battery pack is less than 20%, the hydrogen fuel cell unit charges the power battery pack.
Preferably, when the input power of the driving motor is smaller than the rated power of the hydrogen fuel cell unit and not smaller than the preset minimum power of the hydrogen fuel cell unit, and the SOC of the power battery pack is smaller than 20%, the hydrogen fuel cell unit operates at the rated power and charges the power battery pack.
Preferably, when the vehicle is stopped, neither the hydrogen fuel cell unit nor the power battery pack supplies power to the drive motor, and the hydrogen fuel cell unit is operated in an idling state.
Preferably, when the vehicle is braked and the hydrogen fuel cell system runs in an idle state, the power battery pack absorbs the regenerative braking energy by means of the running characteristic of the braking system.
Compared with the prior art, the invention has the beneficial effects that:
1) the hydrogen fuel cell unit and the power cell pack provide power for the automobile together, when the automobile brakes, the driving motor is changed into a generator, the power cell pack stores feedback energy, the energy utilization rate of the whole automobile is improved, when the hydrogen fuel cell unit and the power cell pack supply energy jointly, the energy output of the hydrogen fuel cell unit changes slowly, the fluctuation of the energy output is small along with time change, the high-frequency part of the energy demand change is occupied by the power cell pack, the power demand of the whole automobile on the hydrogen fuel cell unit is greatly reduced compared with the structure form of a pure fuel cell system, and therefore the cost of the whole automobile is greatly reduced;
2) the efficiency of the hydrogen fuel cell unit is high during working, the hydrogen fuel cell unit is slightly influenced by the outside and the running speed of the vehicle, and the hydrogen fuel cell unit is suitable for urban road working conditions that the vehicle needs to be started, stopped, accelerated and run at a low speed frequently.
Drawings
FIG. 1 is a schematic diagram of the control principle of the present invention;
FIG. 2 is a schematic diagram of a hydrogen fuel cell unit and power cell pack connection according to the present invention;
the labels in the figure are: 1. the system comprises a hydrogen fuel cell unit, 2, a power battery pack, 3, an electronic interface device, 31, a DC/DC converter, 32, a DC/AC converter, 33, a DC/AC inverter, 4, a motor controller, 5, a driving motor, 6, a transmission device, 7, wheels, 71, a wheel speed measuring sensor, 8, a vehicle control unit, 9, a brake pedal, 10 and an accelerator pedal.
Detailed Description
The invention will be further explained with reference to the drawings attached to the specification in order to facilitate understanding by those skilled in the art.
Example 1:
as shown in fig. 1-2, a hybrid power driving system of a hydrogen fuel cell passenger car comprises a hydrogen fuel cell unit 1, a power cell pack 2, an electronic interface device 3, a motor controller 4, a driving motor 5, a transmission device 6, wheels 7 and a vehicle control unit 8, wherein the wheels 7 are provided with wheel speed sensors 71. The electronic interface device 3 is connected to the hydrogen fuel cell unit 1, the power battery pack 2, the motor controller 4 and the vehicle control unit 8, the vehicle control unit 8 is connected to the hydrogen fuel cell unit 1, the power battery pack 2, the motor controller 4, the wheel speed sensor 71, the brake pedal 9 and the accelerator pedal 10, the motor controller 4 is connected to the driving motor 5, the driving motor 5 is connected to the wheel 7 through the transmission device 6, and the transmission device is an axle.
Specifically, the hydrogen fuel cell unit 1 and the power battery pack 2 are connected to each other through a DC/DC converter 31 in the electronic interface device 3, and the power battery pack 2 and the motor controller 4 are connected to each other through a DC/AC converter 32 and a DC/AC inverter 33 in the electronic interface device 3.
As shown in fig. 2, the electric power generated by the hydrogen fuel cell unit 1 and the power battery pack 2 is transmitted to the drive motor 5 through a converter and an inverter to drive the wheels 7 or charge the power battery pack 2. When the power demand of the driving motor 5 is large, the hydrogen fuel cell unit 1 and the power battery pack 2 are driven together, the power battery pack 2 plays a role in regulation on the output of the hydrogen fuel cell unit 1 and the demand of the driving motor 5, and the power battery pack 2 can play a role in increasing the driving range as auxiliary power.
Example 2:
a control method of a hybrid power driving system of a hydrogen fuel cell passenger car comprises the following steps: the vehicle control unit 8 sends command signals to the electronic interface device 3 and the motor controller 4 according to command signals (braking command signals or traction command signals) from a brake pedal 9 or an accelerator pedal 10, and controls power supply by the hydrogen fuel cell unit 1 or power supply by the hydrogen fuel cell unit 1+ the power battery pack 2 according to input power of the driving motor 5. Specifically, in the sharp top speed state, both the hydrogen fuel cell unit 1 and the power battery pack 2 supply the power engine to the drive motor 5 corresponding to the peak power signal; in the braking state, the driving motor 5 runs in a generator state, converts part of braking energy into electric energy and stores the electric energy in the power battery pack 2; when the load power is less than the rated power of the hydrogen fuel cell unit 1, the power battery pack 2 can also obtain energy from the hydrogen fuel cell unit 1 and recover the energy, so that the power battery pack 2 does not need to be charged from the outside of the vehicle.
The above method includes the following modes:
1) pause mode: neither the hydrogen fuel cell unit 1 nor the power battery pack 2 supplies power to the drive motor 5, and the hydrogen fuel cell unit 1 can operate in an idling state;
2) braking mode: the hydrogen fuel cell unit 1 operates in an idle state, and the power battery pack 2 absorbs regenerative braking energy (the thermal energy generated by deceleration during braking is converted into mechanical energy and electric energy, and the converted electric energy is stored in the power battery pack) by means of the operating characteristics of a braking system;
3) a traction mode:
a. if the input power of the drive motor 5 under command is greater than the rated power of the hydrogen fuel cell unit 1, then the hybrid traction mode is applied, in which the hydrogen fuel cell unit 1 is operated in its rated power state, and the remaining power demand is supplied by the power cell pack 2, the rated power of the hydrogen fuel cell unit 1 being set at the top line of the optimum operating zone of the hydrogen fuel cell unit 1;
b. if the input power of the drive motor 5 controlled by the instruction is smaller than the preset minimum power of the hydrogen fuel cell unit 1 and the SOC of the power storage amount of the power battery pack 2 is smaller than 20% (charging is needed), the hydrogen fuel cell unit 1 operates in an idle state, one part of the power supplies power to the drive motor 5, and the other part of the power is used for charging the power battery pack 2; if the SOC of the power battery pack 2 is greater than 90% (charging is not required), the hydrogen fuel battery unit 1 is in an idle state, and the power battery pack 2 drives the vehicle alone, and in the latter case, the power provided by the power battery pack 2 needs to be greater than the input power of the drive motor 5 controlled by the instruction;
c. if the input power of the driving motor 5 is greater than or equal to the preset minimum power of the hydrogen fuel cell unit 1 and is less than the rated power of the hydrogen fuel cell unit 1, and the SOC of the power storage of the power battery pack 2 is greater than 90%, the hydrogen fuel cell unit 1 drives the vehicle independently; if the power battery pack 2 needs to be charged, the hydrogen fuel cell unit 1 operates at rated power, one part of the power is used for driving the motor 5, and the other part of the power is used for charging the power battery pack 2;
d. if the input power of the driving motor 5 is equal to the rated power of the hydrogen fuel cell unit 1, then the hydrogen fuel cell unit 1 operates in the rated power state, the hydrogen fuel cell unit 1 drives the vehicle alone until the vehicle is consumed, and the rest power demand is supplied by the power battery pack 2.
The invention adopts a hybrid power driving system, which mainly comprises a hydrogen fuel cell unit 1 and a power battery pack 2, wherein the hydrogen fuel cell unit 1 is connected with the power battery pack 2, and the generated electric power is transmitted to a driving motor 5 through a converter and an inverter to drive wheels 7 or power the power battery pack 2. When the automobile is braked, the driving motor 5 becomes a generator, the power battery pack 2 stores feedback energy, the energy utilization rate of the whole automobile is improved, and the power battery pack can play a role in increasing the driving range as auxiliary power; when the hydrogen fuel cell unit 1 and the power cell pack 2 supply energy jointly, the energy output of the hydrogen fuel cell unit 1 changes slowly and fluctuates little with time, the high-frequency part of the energy demand change is occupied by the power cell pack 2, and the power requirement of the whole vehicle on the hydrogen fuel cell unit 1 is greatly reduced compared with the structure form of a pure fuel cell system, so that the cost of the whole vehicle is greatly reduced; the efficiency of the hydrogen fuel cell unit 1 is improved, the influence of the outside and the running speed of the vehicle is small, and the hydrogen fuel cell unit is suitable for urban road working conditions that the vehicle needs to be started, stopped, accelerated and run at a low speed frequently.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.

Claims (7)

1. A hybrid power driving system of a hydrogen fuel cell passenger car is characterized by comprising a hydrogen fuel cell unit (1), a power cell pack (2), an electronic interface device (3), a motor controller (4), a driving motor (5), a transmission device (6), wheels (7) and a whole car controller (8), wherein the electronic interface device (3) is connected to the hydrogen fuel cell unit (1), the hydrogen fuel cell vehicle comprises a power battery pack (2), a motor controller (4) and a vehicle controller (8), wherein the vehicle controller (8) is connected with a hydrogen fuel cell unit (1), the power battery pack (2), the motor controller (4), a wheel speed measuring sensor (71), a brake pedal (9) and an accelerator pedal (10), the motor controller (4) is connected with a driving motor (5), the driving motor (5) is connected with a wheel (7) through a transmission device (6), and the wheel speed measuring sensor (8) is installed on the wheel.
2. A hydrogen fuel cell passenger car hybrid drive system as claimed in claim 1, wherein the hydrogen fuel cell unit (1) and the power cell pack (2) are connected by a DC/DC converter (31) in an electronic interface device, and the power cell pack (2) and the motor controller (4) are connected by a DC/AC converter (32) and a DC/AC inverter (33) in the electronic interface device.
3. The control method of a hybrid power driving system of a hydrogen fuel cell passenger car according to any one of claims 1-2, characterized in that the vehicle control unit (8) obtains a command signal from a brake pedal (9) or an accelerator pedal (10) and sends the command signal to the electronic interface device (3) and the motor controller (4), if the input power of the driving motor (5) is larger than the rated power of the hydrogen fuel cell unit (1), the hydrogen fuel cell unit (1) and the power battery pack (2) supply power to the driving motor (5) simultaneously; if the input power of the driving motor (5) is less than the preset minimum power of the hydrogen fuel cell unit (1) and the SOC of the power storage amount of the power battery pack (2) is less than 20%, the hydrogen fuel cell unit (1) supplies power to the driving motor (5), and when the SOC of the power storage amount of the power battery pack (2) is more than 90%, the power battery pack (2) supplies power to the driving motor (5); when the input power of the driving motor (5) is less than the rated power of the hydrogen fuel cell unit (1) and not less than the preset minimum power of the hydrogen fuel cell unit (1), the hydrogen fuel cell unit (1) supplies power to the driving motor (5).
4. The control method of the hybrid power driving system of the hydrogen fuel cell passenger car according to claim 3, characterized in that when the input power of the driving motor (5) is less than the preset minimum power of the hydrogen fuel cell unit (1) and the power storage SOC of the power battery pack (2) is less than 20%, the hydrogen fuel cell unit (1) charges the power battery pack (2).
5. The control method of a hybrid drive system of a hydrogen fuel cell passenger car according to claim 3, characterized in that when the input power of the drive motor (5) is smaller than the rated power of the hydrogen fuel cell unit (1) and not smaller than the preset minimum power of the hydrogen fuel cell unit (1), and the power storage SOC of the power battery pack (2) is smaller than 20%, the hydrogen fuel cell unit (1) operates at the rated power and charges the power battery pack (2).
6. A control method of a hydrogen fuel cell passenger car hybrid drive system according to claim 3, characterized in that it further comprises, when the vehicle is stopped, neither the hydrogen fuel cell unit (1) nor the power battery pack (2) supplies power to the drive motor (5), and the hydrogen fuel cell unit (1) is operated in an unloaded state.
7. The control method of the hybrid power driving system of the hydrogen fuel cell passenger car according to claim 3, characterized in that, when the vehicle brakes, the hydrogen fuel cell unit (1) operates in an idle state, and the power battery pack (2) absorbs regenerative braking energy by means of the operating characteristics of the braking system.
CN202110881915.8A 2021-08-02 2021-08-02 Hydrogen fuel cell passenger car hybrid power driving system and control method Pending CN113415179A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN114683969A (en) * 2022-04-12 2022-07-01 潍柴动力股份有限公司 Fuel cell engine loading control method, device and equipment

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CN111845461A (en) * 2020-07-01 2020-10-30 北京福田戴姆勒汽车有限公司 Fuel cell vehicle energy control method, storage medium, and vehicle
CN112659983A (en) * 2020-04-03 2021-04-16 长城汽车股份有限公司 Energy management method and battery control system for non-plug-in fuel cell vehicle
CN215662984U (en) * 2021-08-02 2022-01-28 奇瑞万达贵州客车股份有限公司 Hydrogen fuel cell passenger car hybrid power driving system

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Publication number Priority date Publication date Assignee Title
US20150056477A1 (en) * 2012-09-28 2015-02-26 Infintium Fuel Cell Systems (Shanghai) Co., Ltd. Fuel Cell Mixed Power Supply Energy Management Method
CN110422084A (en) * 2019-06-27 2019-11-08 陕西法士特齿轮有限责任公司 A kind of fuel cell motive force control method and system
CN112659983A (en) * 2020-04-03 2021-04-16 长城汽车股份有限公司 Energy management method and battery control system for non-plug-in fuel cell vehicle
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114683969A (en) * 2022-04-12 2022-07-01 潍柴动力股份有限公司 Fuel cell engine loading control method, device and equipment
CN114683969B (en) * 2022-04-12 2024-04-16 潍柴动力股份有限公司 Method, device and equipment for controlling loading of fuel cell engine

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