Initialization Time Test and Analysis about the Control Unit of Fuel Cell Vehicle

The paper introduces the test process of the initialization time of the control unit of Fuel cell vehicle (FCV), including connecting to the high-voltage power supply speedily, connecting to the high-voltage power supply with normal steps, and correspondent vehicle testing and hardware in the loop (HIL) bench testing. By analyzing the hard-wired signal such as key location data from data collection device and by analyzing vehicle CAN signal, the test obtained the general initialization time of each control unit and their correspondent systems, and the time needed for speedy connection to high-voltage power supply, and sorted out the determining negative factor of speedy high-voltage connection. This test could obtain implicit system parameters, which might be referred to when improving vehicle properties.