1、 If the electric vehicle realizes reverse driving by changing the rotation direction of the motor, and the switch switching of forward and reverse driving directions is only completed by one operation of the driver, a safety device shall be used to make the switch switch to the reverse position only when it is stationary or at low speed.
2、 Motor Drive shaft
3、The transmission shaft shall not vibrate and make abnormal noise during operation, and the intermediate bearing and universal joint shall not have cracks and looseness. When the transmission shaft of the passenger car is longitudinally arranged under the passenger compartment floor, there shall be protective devices to prevent the sliding connection (spline or other similar devices) of the transmission shaft from falling off or breaking and other faults that may cause danger.
4、 Motor drive axle
The drive axle shall work normally without abnormal noise.
The design structure of tricycle motor and low-speed truck shall ensure that the driving speed of motor vehicle will not exceed its maximum design speed during actual use.
From the surface to the inside, the pursuit of perfection
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