Hydrogen control system of hydrogen fuel cell automobile

A fuel cell and control system technology, applied in fuel cells, electrical components, circuits, etc., can solve the problems of low hydrogen utilization rate, large fluctuation range, and poor hydrogen supply control accuracy.

Active Publication Date: 2018-09-18
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This scheme has poor hydrogen supply control accuracy, large overshoot range, and large fluctuation range, resulting in low hydrogen utilization rate; in addition, reasonable control of hydrogen and air pressure difference is crucial to improving t...

Method used

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  • Hydrogen control system of hydrogen fuel cell automobile
  • Hydrogen control system of hydrogen fuel cell automobile
  • Hydrogen control system of hydrogen fuel cell automobile

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Embodiment Construction

[0053] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0054] The fuel cell stack module 40 needs to use hydrogen and oxygen as fuel to generate electricity. Generally, the anode inlet of the fuel cell stack module 40 enters hydrogen, and the cathode inlet enters air.

[0055] Please refer to figure 1 , the hydrogen control system for a hydrogen fuel cell vehicle provided by an embodiment of the present invention includes a hydrogen inlet pressure sensor 50, an air inlet pressure sensor 150, a hydrogen injection solenoid valve group 30 and a system controller 10;

[0056] Among t...

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Abstract

The invention discloses a hydrogen control system of a hydrogen fuel cell automobile. The hydrogen control system comprises a hydrogen inlet pressure sensor, an air inlet pressure sensor, a hydrogen spraying solenoid valve group and a system controller, wherein the hydrogen spraying solenoid valve group is used for introducing hydrogen to a positive inlet of a fuel cell stack module, the hydrogeninlet pressure sensor is arranged in a pipeline introducing the hydrogen into the positive inlet and is arranged between the hydrogen spraying solenoid valve group and the positive inlet, the air inlet pressure sensor is arranged in a pipeline introducing air into a negative electrode of the fuel cell stack module, and the system controller is connected with the hydrogen inlet pressure sensor, theair inlet pressure sensor and the hydrogen spraying solenoid valve group and is used for calculating pressure difference according to a first pressure signal sent from the hydrogen inlet pressure sensor and a second pressure signal sent from the air inlet pressure sensor and controlling and adjusting the opening frequency of the hydrogen spraying solenoid valve group according to the pressure different. The hydrogen demand quantity is adjusted in real time according to the pressure difference so as to form closed-loop control, the hydrogen control accuracy is improved, and the hydrogen utilization rate is improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a hydrogen gas control system for a hydrogen fuel cell vehicle. Background technique [0002] Fuel cell vehicle is a kind of electric vehicle. The energy of its battery is generated through the chemical action of hydrogen and oxygen. Its energy conversion efficiency can be as high as 60% to 70%. The actual efficiency is about twice that of ordinary internal combustion engines. The chemical reaction process of the fuel cell will not produce harmful products, so it is a real "zero emission, zero pollution" vehicle, and it is the inevitable direction of new energy and clean power vehicles in the future. The research and development and quantity of hydrogen fuel cell vehicles It will surely become a new revolution in the field of global automobile industry. [0003] The control of hydrogen is the control core of the electronic control system of hydrogen fuel cell vehicles....

Claims

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Application Information

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IPC IPC(8): H01M8/04089
CPCH01M8/04089Y02E60/50
Inventor 初洪超韩震蒋大伟徐旭东王哲董宇董宏兴
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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