Why does the electric car screen display a motor fault?

[DiLena]

It is necessary to check whether the motor has any accidents and whether the motor insulation is normal. Here are the basic principles of pure electric vehicles: 1. Working principle of electric vehicles: battery—current—power regulator—motor—power transmission system—driving the car. 2. Technical principle: Pure electric vehicles use motors instead of fuel engines, which is equivalent to an automatic transmission. Traditional internal combustion engines can limit the speed at which they efficiently generate torque to a narrow range, which is why traditional internal combustion engine vehicles require large and complex transmission mechanisms; during the driving process of pure electric vehicles, there is no need for gear shifting devices, making operation convenient and easy. Compared with hybrid vehicles, pure electric vehicles use a single electric energy source, and the electronic control system greatly reduces the internal mechanical transmission system of the car, also reducing energy loss and noise caused by friction of mechanical components, saving internal space and weight of the car.