Open systems and the corresponding interfaces for automotive electronics (OSEK) network management-based controller area network (CAN) management method

Abstract

The invention discloses an open systems and the corresponding interfaces for automotive electronics (OSEK) network management-based controller area network (CAN) management method. The CAN management method is implemented under the coaction of an OSEK network conversion processing module and an application layer-network interface processing module. All electronic control unit (ECU) nodes of an automobile body are connected through a CAN bus. The OSEK network conversion module comprises a failure processing module, a dormancy and initialization processing module and a virtual network processing module. The process of converting the network statuses of the ECU nodes comprises the following steps of: (a) network initialization; (b) network resetting; and (c) conversion between different virtual network statuses of the ECU nodes. A virtual network concept is put forward, a virtual network is dynamically constructed according to the actual needs of each ECU node, and modules without communication requirements can continue to be dormant. The problem of high CAN bus load rate caused by a great number of ECU nodes is solved, network management is optimized, and bus load, electrical interference and bus failure risks are reduced.

Description

technical field [0001] The present invention relates to a new type of network management strategy design based on OSEK network management. In particular, the idea of ​​a virtual network is proposed. In the case of multiple nodes, the virtual network is used to implement the modules that require network management for ring-building communication, without network management. Modules can sleep. In this way, the load rate of the bus can be reduced, the electrical interference can be reduced, and the purpose of optimizing the bus network can be achieved. Background technique [0002] As the technical level of modern automotive electronics has been greatly improved, it is required to accurately control more automotive operating parameters, so the number of automotive controllers is constantly increasing, from the first few to dozens or even hundreds of controllers. unit. The increase in the number of control units makes the information exchange between them more and more intensi...

AI Technical Summary

Problems solved by technology

However, the more control modules, the more serious the electrical interference, the lower the communication timeliness, and the higher the bus load rate

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