Electronic control of automobile

First, electronic control.

As a substitute for the traditional engine gearbox, the motor and electronic control system of new energy vehicles directly determine the main performance indexes of electric vehicles such as climbing, acceleration and maximum speed. At the same time, the working conditions faced by the electronic control system are relatively complex: it needs to be able to start and stop frequently, accelerate and decelerate, low speed/climbing requires high torque, high speed requires low torque, and the speed range is large; Hybrid electric vehicles also need to deal with special functions such as motor starting, motor power generation and braking energy feedback.

In terms of electronic control, for the general OEM, only the vehicle controller is really mastered. The vehicle controller of new energy vehicles is not much different from that of traditional vehicles, and its maturity is relatively high. In addition, when the battery capacity is fixed, the energy consumption of the motor directly determines the cruising range. Therefore, the electric vehicle drive system has special requirements in terms of load requirements, technical performance and working environment:

1, the driving motor should have higher energy density, realize light weight and low cost, adapt to the limited interior space, and at the same time have the maximum feedback ability to reduce the energy consumption of the whole vehicle;

2. The driving motor has both high-speed wide speed regulation and low-speed large torque, providing high starting speed, climbing performance and high-speed acceleration performance;

3. The electronic control system should have high control accuracy, high dynamic response speed, and provide high safety and reliability.