The invention discloses a hydrogen leakage detection system and method for a fuel cell vehicle. The system comprises a hydrogen tank, a nitrogen tank, a hydrogen inlet pipeline, a gas discharging pipeline, a pressure sensor, a first hydrogen sensor, a collision sensor and a control unit. The plurality of hydrogen tanks are communicated with the hydrogen inlet pipeline so as to realize hydrogen supply; the first hydrogen sensor is arranged in the hydrogen tank cabin and is used for detecting the hydrogen concentration in the hydrogen tank cabin; the pressure sensor is arranged in the hydrogen tank and is used for detecting the pressure in the hydrogen tank; a discharge valve is arranged on the gas discharge pipeline; the first hydrogen sensor, the pressure sensor, the discharge valve and the collision sensor are all electrically connected with the control unit; the collision sensor is used for sending a collision signal to the control unit when the vehicle collides; the control unit is used for controlling the deflation pipeline to work according to the detection result of the pressure sensor and the detection result of the first hydrogen sensor when receiving the collision signal. The system can actively monitor whether the hydrogen tank leaks or not after a vehicle accident occurs.

    本发明公开了一种燃料电池汽车氢泄漏检测系统及方法,该系统包括氢罐、氮罐、氢进气管路、放气管路、压力传感器、第一氢气传感器、碰撞传感器和控制单元;多个氢罐均与氢进气管路连通,以实现氢气供应;第一氢气传感器设置于氢罐舱内,用于检测氢罐舱内的氢气浓度;压力传感器设置于氢罐内,用于检测氢罐内的压力;放气管路上设有排放阀;第一氢气传感器、压力传感器、排放阀和碰撞传感器均与控制单元电连接;碰撞传感器用于在车辆发生碰撞时向控制单元发送碰撞信号;控制单元用于在接收到碰撞信号时,根据压力传感器的检测结果和第一氢气传感器的检测结果控制放气管路工作。本发明能够在车辆发生事故后,主动监测氢罐是否泄漏。


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    Title :

    Hydrogen leakage detection system and method for fuel cell vehicle


    Additional title:

    一种燃料电池汽车氢泄漏检测系统及方法


    Contributors:
    ZHANG JINMING (author) / ZHOU JIAMING (author) / HE HONGWEN (author) / JIA CHUNCHUN (author) / LI KUN'ANG (author) / WU GUANGPING (author) / YI FENGYAN (author) / HU DONGHAI (author) / ZHANG CAIZHI (author) / ZHANG ZHIMING (author)

    Publication date :

    2024-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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