The invention discloses a fuel cell system low-voltage fuse box with a diagnosis function, which comprises a current and voltage monitoring module, a CAN (Controller Area Network) communication module, a multi-path vehicle relay socket, a relay, a waterproof plug-in base, a waterproof plug-in and a plurality of low-voltage electric appliances, a voltage monitoring channel of the current and voltage monitoring module is connected with a detection point at the rear end of a fuse, and the fuse is connected with a multi-path vehicle fuse socket. The working states of each fuse and each branch electric equipment in a low-voltage fuse box and the interlocking connection state of each equipment in a fuel cell system are monitored in a current and voltage detection or communication mode, and the monitored data of each working state are uploaded in a CAN communication mode. Therefore, the fuel cell system controller FCU or the vehicle control unit VCU can judge the working states of the low-voltage fuse box and the low-voltage electric appliance connected with the low-voltage fuse box according to the data uploaded by the low-voltage fuse box.
本发明公开了一种具有诊断功能的燃料电池系统低压保险盒,包括电流电压监测模块、CAN通讯模块、多路车用继电器插座、继电器、防水插件底座、防水插件、若干数量低压用电器,电流电压监测模块与低压保险盒输入供电的负极端相连,电流电压监测模块的电压监测通道与保险丝后端检测点连接,保险丝与多路车用保险丝插座相连,通过检测电流、电压或通讯的方式去监测低压保险盒内各路保险和各支路用电设备的工作状态以及燃料电池系统内部各设备的互锁连接状态,并通过CAN通讯的方式将监测到的各个工作状态的数据进行上传,从而使燃料电池系统控制器FCU或整车控制器VCU可通过低压保险盒上传的数据判断低压保险盒及低压保险盒连接的低压用电器的工作状态。
Fuel cell system low-voltage fuse box with diagnosis function
一种具有诊断功能的燃料电池系统低压保险盒
2023-09-15
Patent
Electronic Resource
Chinese
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