An electric car controller is broken, can not find the perfect match, what are the requirements on the parameters? For example, 48V 10A 250W is the original motor, the controller can change the 48V 12A 500W, motor and controller both what matching requirements in the voltage, current and power, such as voltage, current, power controller can be higher or lower than the motor?
The controller has the important function of protecting the battery. When the voltage of the battery drops to 0.9 times of the rated voltage, the controller will break the motor to protect it. The voltage protection value of the 48V controller is (48Vx 0.9) 43.2V. Namely: qualified high quality controller, its undervoltage protection value is 43.2V, with the use of 48V motors.
Hello.- * 1, main function of electric vehicle controller: 1, adjust the motor speed; the electric vehicle brake (brake protection, disconnect the motor power supply); the power supply voltage detection and protection (i.e., power display, and the voltage is lower than the rated value of 0.9 times when the power, in charge).
The rated power and current of the electric vehicle controller are its control ability. As long as the power of the motor is within the control range of the controller, it can run safely and reliably. The original is 48V 10A 250W motor, you can change 48V, 12A, 500W controller. Need to pay attention to is: electric motor, brushless motor and brush motor of the points, the controller must match.
