Electric motor heating is what happened?
Even more than 60 degrees, dangerous, the motor enamel line insulation may be changed, causing short circuit, motor burns. If your electric car has not been modified by itself, such as increasing the battery to 60V, or 72V, 84v, etc., or the controller power increase or malfunction, the general motor temperature will not exceed 40 degrees. If the motor is not hot when it is running at high speed, check the cause of the continuous discharge of the high current. One is the power circuit and the controller, and the other is the braking system.
Electric motor in continuous high-speed case, due to the large current discharge, according to the law of conservation of energy, not all motor converts electrical energy into heat energy, some (the current through the resistor, the resistance heating), is normal, but if the temperature exceeds 40 degrees
Normally, motors run hot for a while in the summer! As long as no more than 100 degrees, no problem! Check the brakes if there is a problem, check the motor bearing is bad, check the controller output current is too large! Whether the running distance is too far or overloaded, all the above causes motor heating!
