The idle speed control system is realized by adjusting the air passage area to control the intake air flow, and the main actuator is the idle speed control valve (ISC). The ECU compares the target speed determined by the input signals from each sensor with the actual speed of the engine, and determines the control amount equivalent to the target speed according to the difference obtained from the comparison, to drive the actuator that controls the air volume, so that the idle speed Stay close to your best.
In addition to the above control devices, the electronic technology used in the engine part also includes: throttle timing, secondary air injection, engine boosting, oil and gas evaporation, combustion chamber volume, compression ratio, etc., and has been obtained on some models. application.
Electric power steering system: When the steering wheel is manipulated, the torque sensor installed on the steering shaft continuously measures the torque signal on the steering shaft, and the signal is input to the electronic control unit (ECU) at the same time as the vehicle speed signal. The electronic control unit determines the magnitude and direction of the power assist torque according to these input signals. After the torque of the motor is decelerated and increased by the electromagnetic clutch through the deceleration mechanism, it is added to the steering mechanism of the car, so that it can obtain a steering effect suitable for the working conditions of the car.