Mode switching method and CAN (Controller Area Network)

A mode switching and network technology, applied in the field of mode switching method and CAN network, can solve the problems of forced sleep, reduce network load rate, unable to meet the functional requirements of slave nodes, etc., and achieve the effect of avoiding forced sleep and reducing load rate.

Inactive Publication Date: 2013-05-01
GREAT WALL MOTOR CO LTD
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing OSEK indirect network management strategy is to coordinate the network nodes to enter the sleep state at the same time by sending sleep commands from the master node to the slave nodes. However, when the master node sends the sleep command, some slave nodes still need network communication, which leads to

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mode switching method and CAN (Controller Area Network)
  • Mode switching method and CAN (Controller Area Network)
  • Mode switching method and CAN (Controller Area Network)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] like figure 1 As shown, the embodiment of the present invention provides a mode switching method, the method is applied to each node in the automotive CAN network, the automotive CAN network includes at least two nodes, the at least two nodes support the sleep function, the first The node is any node in the CAN network, and the method includes:

[0026] 101. The first node sends a packet with a sleep indication.

[0027] 102. Receive response messages from...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a mode switching method and a CAN (Controller Area Network), which relate to an automobile network management technology and are used for lowering the network load rate and preventing a part of slave nodes from sleeping forcibly due to master and slave node setting. The mode switching method is applied to each node in an automobile CAN; the automobile CAN comprises at least two nodes; the at least two nodes support a sleeping function; and a first node is any node in the CAN. The method comprises the following steps of: transmitting a message including a sleeping instruction by using the first node; receiving response messages of other nodes except the first node; and when all the response messages are messages including sleeping instructions, transmitting a message with a sleeping response by using the first node to instruct all nodes in the CAN to be switched to a sleeping waiting mode. According to the mode switching method and the CAN, the network load rate is lowered, and the problem that a part of slave nodes are forced to sleep due to master and slave node setting is solved.

Description

technical field [0001] The invention relates to automobile network management, in particular to a mode switching method and a CAN network. Background technique [0002] The rapid development of the information society makes automobiles electronic and networked. The sign that the automobile enters the era of electronic control is the application of ECU (Electronic Control Unit, electronic control unit). With the increasing number of ECUs in automobiles, each ECU needs to exchange information with each other, so the Internet used in automobile control systems was born. Among them, the CAN network has the characteristics of strong real-time performance, high reliability, simple structure, good interoperability and low price, so the CAN network is widely used in the automotive field. [0003] Static power consumption is an important technical indicator of the vehicle. In order to reduce the static power consumption of the vehicle, it is necessary to make the electronic control...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L12/24H04L12/40H04L12/801
Inventor 黄勇郭俊飞张立峰牛海超
Owner GREAT WALL MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap