Automobile body network management system

Abstract

The invention discloses an automobile body network management system which is characterized in that the modules, such as an engine management unit, a gearbox control module, a brake system module, a supplementary restraint system module and an electronic assistance control module, which work only after an automobile is started respectively serve as 15-nodes to have access to a CAN bus network, the modules, such as an automatic air-conditioning module, a combination instrument unit, a PEPS control module and an automobile body control module, which depend on a storage battery to continuously work after the automobile is stopped respectively serve as 30-nodes to have access to the CAN bus network, the automobile body control module serves as a 30-main-node, and the automatic air-conditioning module, the combination instrument unit and the PEPS control module serve as slave nodes of the 30-main-node. The automobile body network management system has the advantages that optimal management is carried out on network communication between the control units of the automobile, the phenomenon that electricity of the storage battery is lost when the automobile is stopped is avoided, and the automobile body network management system is suitable for different automobile body network topological structures.

Description

technical field [0001] The invention relates to the field of automobile body communication, in particular to an automobile body network management system. Background technique [0002] With the advancement of automotive electronic technology and vehicle network technology, in order to meet the intelligent control of vehicles, real-time and safe, more and more electronic control units are used, and vehicle networks are also widely used. [0003] However, at present, there are differences among the electronic control units, and the power-on initialization time and sleep wake-up definition are inconsistent, which may lead to misjudgment of the signals of each electronic control unit when the power is turned on, failure to sleep normally when the vehicle is turned off, and battery power failure. . [0004] In view of the above problems, it is a problem to be solved in the prior art to establish a network communication system between electronic control units and a corresponding ...

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Problems solved by technology

[0003] However, at present, there are differences among the electronic control units, and the power-on initialization time and sleep wake-up definition are inconsistent, which may lead to misjudgment of the signals of each electronic control unit when the power is turned on, failure to sleep normally when the vehicle is turned off, and battery power loss, etc.

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