The red sun electric car used to run 60 miles, but now it can only run 40 miles. What is the cause of Guangzong?

Problems with the speed control handle (throttle).

The possible reasons are as follows:

1) Sudden acceleration or braking during riding causes the governor to burn out, such as avoiding pedestrians or vehicles in an emergency. When the vehicle goes downhill, it makes an emergency turn and suddenly brakes. Power failure after downhill, the governor will not run until it hits the bottom. Finally, it is uncomfortable to push the car home for several kilometers.

2) The electric vehicle was struck by lightning in the carport, and the governor was damaged after inspection. Fortunately, the motor and governor are not broken, otherwise the loss will be great. Note that in thunderstorm weather, the big lock on the wheel should not touch the ground, especially on the wet ground. Lightning current will generally damage the electrical components of electric vehicles.