Multi-subnet cooperative sleep method and system based on CAN bus

Abstract

The invention belongs to the technical field of software and particularly relates to a cooperative sleep method and system based on multiple sub-networks of a CAN bus, wherein the cooperative sleep method and system based on the multiple sub-networks of the CAN bus are applied to complete vehicle cooperative sleep treatment under the condition that Autoar network management, OSEK network management and master-slave sleep management coexist in a vehicle so as to ensure the normal communication of the vehicle after IGOFF is guaranteed. A gateway serves as a main control ECU for cooperative sleep. Whether the ECU1 node meets the sleep condition or not is judged through the CAN1 port. Whether the ECU2 meets the sleep condition or not is judged through the CAN2 port, and the ECU3 is directly commanded to sleep through the CAN3 port. According to the invention, cooperative sleep can be realized under the condition that the sleep modes and strategies of the controllers of the whole vehicle are different, so that the universality of the parts of the controllers is guaranteed. The project development period and cost are shortened.

Description

technical field [0001] The invention belongs to the field of software technology, specifically a CAN-based system that is applied to the cooperative sleep processing of the whole vehicle under the coexistence of Autosar network management, OSEK network management and master-slave sleep management in the vehicle to ensure the normal communication of the vehicle after IGOFF. A bus multi-subnet coordinated sleep method and system. Background technique [0002] Vehicle communication is mainly used to meet vehicle functions. Some functions require vehicles to still be able to communicate normally after IGOFF. Currently, the network management in use includes Autosar network management, OSEK network management and master-slave sleep management methods. In order to save costs and reduce the amount of development The controllers of various models generally adopt the method of borrowing and continuing to use. Therefore, there are currently three modes of Autosar network management, O...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and system for cooperative sleep under the condition that different network management modes coexist in a car model with CAN bus as the backbone network, and solves the problem of coexistence of Autosar network management, OSEK network management and master-slave sleep management in the vehicle Vehicle cooperative sleep problem under the condition of three network management methods

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