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

A CAN bus, multi-subnet technology, applied in the field of CAN bus-based multi-subnet collaborative sleep method and system, to achieve the effect of shortening development cycle and cost, and ensuring versatility

Active Publication Date: 2020-09-04
FAW CAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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

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Experimental program
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Effect test

Embodiment 1

[0038] When the local sleep condition of ECU1 of the OSEK network management node of a vehicle is satisfied first, and the local sleep condition of ECU2 of the Autosar network management node is satisfied later, the whole vehicle cooperates with sleep mode.

[0039] refer to figure 2 , the whole vehicle cooperative sleep process is as follows:

[0040] 1) According to the Autosar gateway management strategy, the controller will stop sending Autosar network management messages after the sleep condition is met. Since the sleep condition of ECU1 is satisfied first, ECU1 stops sending Autosar network management messages. The CAN1 port of the gateway is connected to ECU1 through the CAN line, so the gateway will detect it immediately after ECU1 stops sending Autosar network management messages.

[0041] 2) According to the OSEK network management strategy, the controller will send an OSEK network management message with a sleep instruction after the sleep condition is met, so EC...

Embodiment 2

[0048] A vehicle's OSEK network management node 2-2 first meets the local sleep conditions, but the Autosar network management node 2-1 subsequently meets the local sleep conditions in a cooperative sleep mode of the whole vehicle.

[0049] refer to figure 2 , the whole vehicle cooperative sleep process is as follows:

[0050] 1) According to the OSEK network management strategy, the controller will send an OSEK network management message with a sleep instruction after the sleep condition is met, so the ECU2 will send an OSEK network management message with a sleep instruction after the sleep condition is met. The CAN2 port of the gateway is connected to ECU2 through the CAN line, so the gateway will detect it immediately after ECU2 sends out the OSEK network management message with sleep instructions. But at this time, the sleep condition of ECU1 is not satisfied, so ECU2 and the gateway need to wait for ECU1 to meet the sleep condition before proceeding to the subsequent pro...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/4401H04L12/40H04L12/403
CPCG06F9/4418G06F9/4416H04L12/40H04L12/403H04L2012/40215H04L2012/40273
Inventor 梁亚丽黄金山刘晓祥张晓光高家君陶英轩荆伟冯梓轩马文峰李英
Owner FAW CAR CO LTD
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