First, the basic knowledge of new energy vehicle motor
The new energy vehicle drive motor system is one of the three core components of the new energy vehicle. The driving motor refers to an electrical device that converts electrical energy into mechanical energy to provide driving force for driving the vehicle. Its performance directly determines the climbing ability, acceleration capability, and maximum speed of the electric vehicle. The technical and manufacturing level of the motor electronic control system directly affects the performance and cost of the vehicle.
The drive motor is one of the three core components of the new energy vehicle. Compared with the traditional industrial motor, the new energy vehicle drive motor has higher technical requirements. Due to the narrow installation space, harsh working environment, and special reasons such as large vibration, large impact, severe corrosion, high temperature and high humidity, the new energy drive motor needs to have wide speed range, high power density, small size, safety and reliability, and light weight. Low cost and other characteristics.
The drive motors suitable for new energy vehicles mainly include three types: permanent magnet synchronous, alternating current asynchronous and switched magnetic resistance. Due to their different characteristics, each has its own application.
From the perspective of comprehensive performance, permanent magnet synchronous motors have the most advantages and are more representative of the development direction of new energy vehicle drive motors. Moreover, as a raw material of magnetic materials, China has abundant reserves of rare earth resources, so it is expected that permanent magnet motors will occupy the motor market of new energy vehicles in China for a long time.
Second, the status quo of new energy automotive motor market
The cost of new energy automobile motor accounts for about 10% of the whole vehicle. Usually, a new energy vehicle is equipped with a motor, and up to 96% of the pure electric vehicle motor and electronic control are supplied. The motor and electronic control can be as much as possible. To achieve the integration of components, the future "three powers" (motor, electric control, battery) supporting is the industry consensus.
In December 2016, the State Council approved and promulgated the “13th Five-Year National Strategic Emerging Industry Development Plan”, clearly stating that by 2020, new energy vehicles will achieve more than 2 million production and sales in the same year, with cumulative production and sales exceeding 5 million. The market estimates that China's electric drive system will have a demand of 31 billion yuan in 2020, of which new energy passenger cars account for 73%, new energy special vehicles account for 14%, and new energy buses account for 12%.
