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A method for controlling idle speed conditions of a hydrogen fuel cell hybrid power system

A technology of fuel cell system and hybrid power system, applied in the direction of battery/fuel cell control device, battery/battery traction, control drive, etc., can solve problems affecting battery life, fuel cell material and performance attenuation, and achieve energy distribution Reasonable and effective, prolonging the service life and ensuring the effect of hydrogen utilization

Active Publication Date: 2022-05-24
WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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Problems solved by technology

[0003] During the service life of the fuel cell hybrid electric vehicle, when the fuel cell hybrid electric vehicle is running at idle speed, the voltage working range of the fuel cell cell is between 0.85-0.9V, and the higher potential will also make the fuel cell The battery material and performance are attenuated, which affects the life of the battery

Method used

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  • A method for controlling idle speed conditions of a hydrogen fuel cell hybrid power system
  • A method for controlling idle speed conditions of a hydrogen fuel cell hybrid power system
  • A method for controlling idle speed conditions of a hydrogen fuel cell hybrid power system

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Embodiment Construction

[0019] To make the object, technical solution and advantages of the present invention more clear, the following will be further described in conjunction with the accompanying drawings of embodiments of the present invention.

[0020] Please refer to Figure 1 , embodiments of the present invention provides an idle condition control method for a hydrogen fuel cell hybrid system, comprising the following steps:

[0021]Step S1, when the fuel cell system has no power output or the vehicle is in stop and brake, the fuel cell system will charge other power sources, after completing the charging, if there is no power output, the voltage of the fuel cell system will rise, the output current will become smaller, the vehicle controller will be used to collect the voltage of the supercapacitor system and the SOC of the nickel-metal hydride battery system, and the voltage of the supercapacitor system and the SOC of the nickel-metal hydride battery system will be sent to the fuel cell system, ...

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Abstract

The invention provides a method for controlling the idling condition of a hydrogen fuel cell hybrid power system. The SOC of the hydrogen cell system judges whether the fuel cell system enters the idling working state from the normal operation mode. Whether the voltage of the single cell is less than or equal to 200mV, if so, turn off the hydrogen system, make the fuel cell system enter the idle stop waiting; then judge whether to restart the fuel cell according to the required power of the fuel cell system, the voltage of the supercapacitor system or the SOC of the nickel-metal hydride battery system system, if so, restart the fuel cell system to enter the normal operation mode.

Description

Technical field [0001] The present invention relates to the field of hydrogen fuel cell technology, in particular to a hydrogen fuel cell hybrid system idle working condition control method. Background [0002] Energy issues and environmental protection have become the core of the sustainable development strategy of human society, influencing energy decision-making and science and technology orientation in all countries in the world. Fuel cell energy conversion efficiency is high, and no noise, no pollution, is becoming an ideal way of energy utilization, its high efficiency, clean, renewable and other characteristics make it in the future transportation, transportation, communications and other fields have broad application prospects. A fuel cell is a device that directly converts the chemical energy generated by the fuel reaction into electrical energy. Proton exchange membrane fuel cells (PEMFC) are currently a hot topic in research and development in the field of automotive a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/30B60L58/31B60L58/12B60L58/40B60L50/40B60L50/75B60L53/22B60L15/20
CPCB60L58/30B60L58/31B60L58/12B60L58/40B60L50/40B60L50/75B60L53/22B60L15/20Y02T10/70Y02T10/72Y02T10/7072Y02T90/14Y02T90/40
Inventor 李昌泉郝义国李正辉
Owner WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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