ECU (Electronic Control Unit), also known as "trip computer" and "vehicle computer". In terms of use, it is a special microcomputer controller for automobiles, also called a special single chip microcomputer for automobiles. It is composed of microprocessor, memory, input/output interface, analog-to-digital converter and large-scale integrated circuits such as shaping and driving, just like ordinary single chip microcomputer.

The voltage working range of ECU is generally 6.5- 16V, the working current is 0.0 15-0. 1A, and the working temperature is-40-80 degrees. It can withstand the vibration below 1000Hz, and the probability of ECU damage is very small. CPU is the core part of ECU, which has the functions of calculation and control. When the engine is running, the signals of various sensors are collected and calculated, and the calculation results are converted into control signals to control the work of the controlled object.

Extended data

Automobile ECU, like ordinary computers, consists of microprocessor (MCU), memory (ROM, RAM), input/output interface (I/O), analog-to-digital converter (A/D) and large-scale integrated circuits such as shaping and driving. To describe it in a simple sentence is "ECU is the brain of a car".

In some mid-to high-end cars, ECU is not only used in engines, but also in many other places. For example, anti-lock braking system, four-wheel drive system, electronically controlled automatic transmission, active suspension system, airbag system, multi-directional adjustable electronically controlled seat, etc. Are equipped with their own ECU.

References:

Baidu encyclopedia -ECU