Therefore, overload or short-circuit protection components should be installed in the design of high-voltage systems, such as insurance and contactors in relevant circuits. Comprehensive judgment is made with the effective command of the relevant control contactor closing. If a relevant circuit fault is detected, the high-voltage management system will send out an audible and visual alarm to remind the driver.
Insulation Resistance Troubleshooting
The degree of electrification of electric vehicles is higher than that of traditional vehicles. Among them, battery packs, electric drive systems, high-voltage electrical auxiliary equipment, chargers and high-voltage wiring harnesses are in the harsh environment of vehicle collisions, overturning and vehicle operation (vehicle vibration, external environment humidity, etc.) Under the influence of temperature and temperature), the insulation performance between the high-voltage circuit and the chassis of the car may be reduced, which may cause car fires and directly affect the lives of car drivers and passengers.