What Is Car ECU?
by Charles Frost -
The vehicle main computer is an electronic computer which used in modern autos to manage its electronic modules. Collecting input from sensors and sending output to the different module, the ECU manage the appropriate operation of the automotive.
The car computer obtain inputs from several components in the auto motive like the combustible fuel system and crankshaft sensors to effectively compute information as cooling system, fuel system, intake and some other components to determind and manage the running situation of the engine, transmission system such as the traction control (ABS), the air bags, the AC and others.
A common illustration is the wheel speed detector which examine the speed of the wheel and transfer the information to the engine control unit. This way, rather than distributing messages to number of modules from one detector, the messages would be delivered by the engine control unit to all the devices that use this information such as the ABS, suspension system, speedometer and others.
On-board Diagnostics Port
An automobile that incorporate auto motive's computer will also furnish OnBoard Diagnostics (OBD) provision to let driver or officials to plug diagnostic equipage and diagnose and configure the auto motive's computer settings.
Vehicle main computer theft countering control
The car immobilizer is anti theft infrastructure placed on the auto motive computer. It prevents the car engine from firing up unless driver is applying a registered key. This system employs a special transponder key that saves the electrical security pin-code or in other words the password. The ECM will not power on the pressure of fuel instrumentation and the ignition cylinder if the PIN code in the key isn't in sync with the PIN code kept in the immobilizer.
Different manufacturers of automobiles use other types of car computers as the BCM (Brake Control Module), ECM (Engine Control Module), PCM (Powertrain Control Module)) and others. Contemporary automotive may contain many ECUs and because of this growing complexity, the programming necessitate in resetting or configuring the motor vehicle computer is turning more challenging to maintain.