Introduction to the Control Principles of Electric Vehicle Motors (1) - Development of Electric Vehicle Drive Motors (4)

The comparison of the three types of motors can be seen in the table below.

Through a simple investigation, it was found that Japanese car series often use permanent magnet synchronous motors, such as Toyota, Honda, Nissan, etc. However, European and American automotive companies often use AC induction motors, such as General Motors, Chrysler, Volkswagen, etc.

The population density in European and American countries is relatively low, and the urban distribution is not compact. However, due to the developed economy, the highway system is convenient, which makes cars that run on highways for a long time no longer need to start and stop frequently. However, they require higher motor efficiency at high speeds, which has led to the widespread use of induction motors and has been promoted in the products of many mainstream automobile companies.

On the other hand, the situation in Japan is exactly the opposite. With a small land area and high population density, high-speed railway transportation such as maglev is very convenient, so electric vehicles are mainly driven in cities. However, urban road conditions require that cars cannot travel at high speeds for a long time and must stop at traffic lights. Permanent magnet synchronous motors can just meet these needs, so Japanese models mainly use PMSM.

Compared with the traffic situation in Japan, urban congestion in China is more severe, so domestic models mainly use permanent magnet synchronous motors.