Power limitation: The motor power of electric four-wheel vehicles is usually limited. For example, the ratio of the peak power of the motor to the curb weight of a low-speed four-wheel electric vehicle should be maintained within the range of 10kW/t to 20kW/t.

Certification requirements: The design and manufacturing of the motor must comply with international or industry standard certifications, such as CE and UL certifications.

Performance requirements: The performance of the motor needs to meet specific standards. For example, the motor of a low-speed four-wheel electric vehicle should be able to provide sufficient power to ensure that the vehicle accelerates from a standstill to 30km/h in no more than 10 seconds.

Efficiency requirements: The motor needs to be efficient, reliable, and durable. Efficient motors can improve the endurance and overall performance of vehicles.

Safety requirements: The motor and its control system must comply with safety standards to ensure stable operation under various working conditions and avoid safety hazards.