8 pin 173850-1 Integrated Circuits Temperature Sensors Optical Sensors 1.8 Series

1.Electronic Control Unit (ECU)

Automotive electronic control unit is referred to as electronic control unit, also known as electronic controller or electronic control component, commonly known as "car computer".

The electronic control unit is an electronic control device composed of a single-chip microcomputer (that is, a single-chip microcomputer) as the core, and has powerful functions such as mathematical operations, logical judgments, data processing and data management. ECU is the control center of the automotive electronic control system. Its main function is to analyze and process various information collected by sensors, and issue control instructions to controlled devices (ie actuators).

2.Actuator

The actuator, also known as the actuator, is the actuator of the electronic control system. The function of the actuator is to receive instructions from the electronic control unit (ECU) to complete specific execution actions.

The number and types of actuators used are different for different electronic control systems of automobiles. The actuators of the engine fuel injection system include electric fuel pumps and electromagnetic injectors; the actuators of the engine idle speed control system are idle speed control valves; the actuators of the fuel vapor recovery system are activated carbon canister solenoid valves; Fire controller and ignition coil; the actuator of the anti-lock brake system has a two-position two-way solenoid valve or three-position three-way solenoid valve, brake fluid return pump motor; the actuator of the airbag system is an airbag igniter; The actuator of the seat belt tightening system is the igniter of the tightener; the actuator of the automatic transmission system includes the automatic transmission fluid oil pump, the shift solenoid valve and the lock solenoid valve; the actuator of the car cruise control system has the cruise control Electric motors or cruise control solenoids, etc.

(1) Classification of automotive electronic control systems

There are many types and forms of automotive electronic control systems, and the classification methods are not the same. Generally, they can be classified according to the control objectives and control objects of the control system.

(2) Classified by control objectives

According to different control objectives, automotive electronic control systems can be divided into six types of control systems: power, economy and emissions, safety, comfort, maneuverability and passability. The main control items and control functions are shown in the table

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