Light weight and small size: the motor should adopt an aluminum alloy shell to reduce the weight of the whole vehicle. The overall structure should be as compact as possible, and the components such as various control devices and cooling systems should also be as small as possible, so as to increase the fit between the motor and the car body, expand the available space of the car body, and improve the ride comfort.
High voltage, high efficiency: use high voltage as much as possible within the allowable range, reduce the size of the motor and the size of the wire and other equipment, improve the efficiency of the motor, and ensure high efficiency in a wide range of speed and torque , to reduce power loss and increase the mileage that can be traveled after a single charge.
High instantaneous power and strong overload capacity: the motor should have automatic speed regulation function and instantaneous dynamic response control, and ensure that the vehicle has an overload capacity of 4-5 times to meet the requirements of acceleration and maximum climbing in a short time.
High efficiency of energy regeneration and recovery: The motor should have the function of low efficiency and low loss, and recover energy (10-15% of the total energy can be recovered) when the vehicle is coasting, decelerating and braking, so that the electric vehicle has the maximum energy utilization rate.
Safety: The working voltage of the power battery and the motor is above 300V. The safety performance indicators of each electrical system and control system must comply with the national standards and regulations on the safety performance of vehicle electrical controls to ensure the safety of drivers and passengers.