What is the ECU in a car?

[LaJeremiah]

ECU in a car is the Electronic Control Unit, a specialized microcomputer controller for automobiles, also known as the vehicle computer or onboard computer. The ECU can be considered one of the core electronic components in modern vehicles. The car's ECU functions like the human brain and is mostly installed under the dashboard on the driver's side or near the wiper linkage. The role of the ECU is to continuously monitor various input data (such as braking, gear shifting, etc.) and the vehicle's operating conditions (acceleration, skidding, fuel consumption, etc.). It calculates the information sent by various sensors according to pre-programmed procedures, processes it, and then sends the parameters to the relevant actuators to perform various predetermined control functions.