What is the reason why the ant 100 km can't accelerate?

1, abnormal temperature of power battery;

2.BMS program needs to be upgraded;

3. The 3.BMS control module is faulty.

Cause of failure 1: abnormal temperature of power battery.

If the temperature of the power battery is too high or too low, the power output of the vehicle will be limited, and the power limit indicator light on the instrument panel will light up.

Solution 1: When the temperature of the power battery is low, the battery temperature will increase when the vehicle is driving, and the power limit indicator light on the instrument panel will automatically go out; If the temperature of the power battery is too high, the power limit indicator light on the instrument panel will disappear automatically without special treatment after the battery is cooled by slowing down or stopping.

Reason 2: BMS program needs to be upgraded.

The program optimization of vehicle battery management system (BMS) is not sufficient, and the parameter calibration is not accurate enough, which will lead to frequent lighting of the power limit indicator on the dashboard. Car owners can try to upgrade the battery management system program and optimize the control logic of the battery management system.

Solution 2: Upgrade the battery management system program. During the warranty period, the vehicle can be upgraded to 4S shop for free; The vehicle has passed the warranty period, and the upgrade cost of the 4S shop is around 200-300 yuan.

Cause 3: The BMS control module is faulty.

The failure of vehicle battery management system (BMS) module will limit the power output of the power battery when the vehicle is driving, and there will be no response when stepping on the accelerator pedal, and the power limit indicator light will appear on the instrument panel. The maintenance technician reads the data stream of the battery management system module by using the automobile special detection computer, and judges whether there is a fault by analyzing the data.

Solution 3: Replace the BMS control module. During the warranty period, the vehicle can be replaced free of charge in the 4S shop; If the vehicle exceeds the warranty period, the replacement cost of the 4S shop is about 3000-5000 yuan, and the replacement cost of the repair shop is about 3000 yuan.