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Control method and system for vehicle fuel cell

A fuel cell and control method technology, applied in battery/fuel cell control devices, electric vehicles, vehicle parts, etc., can solve problems such as aging, aggravating internal structure aging, reducing practical life, etc., and achieve the effect of parameter stability

Inactive Publication Date: 2021-02-02
ZHEJIANG CRRC ELECTRIC VEHICLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing fuel cells for vehicles often start with the start of the car and shut down with the shutdown of the car, which leads to frequent start and stop of the fuel cell, which easily leads to damage and aging of the fuel cell, reducing its Practical life
At the same time, a sudden change in output power will also shorten the service life of the fuel cell and aggravate the aging of the internal structure

Method used

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  • Control method and system for vehicle fuel cell
  • Control method and system for vehicle fuel cell
  • Control method and system for vehicle fuel cell

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Embodiment 2

[0068] In order to have a better systematic understanding of the present invention, this embodiment describes the structural relationship of the various components of the present invention in a modular form, as image 3 As shown, a vehicle fuel cell control system, the vehicle controller controls the start and standby of the fuel cell through the control signal to supply power to the power battery. The fuel cell also includes a warm-up unit. During the start-up process:

[0069] The vehicle controller is used to send a control signal to the warm-up unit after receiving the warm-up signal, and send a standby signal to the fuel cell after receiving the start-up signal and the temperature rise confirmation signal;

[0070] The warm-up unit is used to control the fuel cell to enter the warm-up mode after receiving the control signal, and send a temperature rise confirmation signal when the temperature of the fuel cell reaches a preset temperature;

[0071] The vehicle controller i...

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Abstract

The invention discloses a control method and system for a vehicle fuel cell, and particularly relates to the field of vehicle battery control, in which a vehicle control unit controls the start and standby of the fuel cell through the judgment of a control signal to supply power to a power cell and limit the fuel cell to output at a constant power, thereby ensuring the parameter stability of the fuel cell. According to the method, the fuel cell is enabled to enter the standby mode through the startup signal, then the fuel cell is enabled to enter the startup mode through the power demand signal, and the standby and shutdown of the fuel cell are controlled under the control of various shutdown signals. By setting the standby mode and various shutdown controls, the fuel cell can supply powerto the power cell in time as required, and can respond to a startup signal in time in shutdown or standby.

Description

technical field [0001] The invention relates to the field of vehicle battery control, in particular to a control method and system for a vehicle fuel cell. Background technique [0002] The main circuit of the fuel cell vehicle is composed of a power battery pack, a fuel cell system, a drive motor, and load equipment. When the tram is running, the traction motor is powered by the power battery and the fuel cell system, and the fuel cell supplies power to the traction motor by charging the power battery. The fuel cell system only allows output, while the power battery has two-way functions (power supply and energy recovery). [0003] However, the existing fuel cells for vehicles often start with the start of the car and shut down with the shutdown of the car, which leads to frequent start and stop of the fuel cell, which easily leads to damage and aging of the fuel cell, reducing its Practical life. At the same time, a sudden change in output power will also shorten the se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/31B60L58/32B60L58/34B60L58/30
CPCB60L58/30B60L58/31B60L58/32B60L58/34Y02T90/40
Inventor 颜祺宇胡远敏陈永忠黄帅孙亮宏王韬孙飞艇
Owner ZHEJIANG CRRC ELECTRIC VEHICLE CO LTD
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