The invention provides an electronic
control network of an automobile, which relates to an improvement of the conventional electronic
control network of an automobile, is more accurate and is capable of solving network conflict and time
delay of a vehicle-mounted CAN (Controller
Area Network)
bus. The electronic
control network is designed with three electronic control units (ECUs) of the automobile, namely, an anti-locking
brake system (ABS), an electronic power-assisted steering (EPS) unit and an automobile body
control unit, and the ECUs form high, medium and
low speed nodes of the
CAN bus so as to form a control network; and the core of the electronic control network is a
software module which is mainly composed of a
system initializing module, a start self-checking module, a main control module, a
data acquisition module, a
data processing module, a reference automobile speed calculating module, a
road surface identifying module, an automobile movement state identifying module, a control decision and execution mechanism acting module, a failure diagnosing module and a communication module, and the modules are uniformly dispatched in real time and distributed with
operation time by the main control module according to a
task management mechanism and exchange data and signals with one another.