Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

CAN (Controller Area Network) bus system and fault diagnosis method thereof

A CAN bus, fault technology, applied in the direction of bus network, data exchange through path configuration, circuit or fluid pipeline, etc., can solve the problem of wasting driver's time, achieve the effect of solving fault problems and convenient and fast fault diagnosis

Active Publication Date: 2012-09-19
BEIQI FOTON MOTOR CO LTD
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the communication problem between the controllers is solved, the resulting fault diagnosis and detection has become the biggest problem. The existing maintenance and diagnosis detection methods need to connect external detection equipment to the CAN bus system in a special place to complete the fault diagnosis, which wastes a lot of time. a lot of time for the driver

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
  • CAN (Controller Area Network) bus system and fault diagnosis method thereof
  • CAN (Controller Area Network) bus system and fault diagnosis method thereof
  • CAN (Controller Area Network) bus system and fault diagnosis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] figure 1 It is the structural representation of the CAN bus system of the embodiment of the present invention; figure 1 Said, the CAN bus system includes at least one functional control system and instrument 6 connected to the CAN bus;

[0030] The at least one functional control system is further used to actively send the current fault message, that is, the DM1 message, to the CAN bus when a fault occurs;

[0031] The instrument 6 is further configured to receive a currently occurring fault message from the CAN bus, analyze the currently occurring fault message and display fault related information.

[0032] The at least one functional control system is further ...

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 relates to a CAN (Controller Area Network) bus system and a fault diagnosis method thereof, and discloses a controller area network CAN bus system. The CAN bus system comprises at least one function control system and an instrument (6) which are connected to a CAN bus, wherein the at least one function control system is further used for actively transmitting a DM1 message of a fault which occurs at present to the CAN bus when the fault occurs; and the instrument (6) is further used for receiving the DM1 message from the CAN bus, analyzing the DM1 message and displaying fault related information. According to the CAN bus system and the fault diagnosis method thereof, the time of acquiring a diagnostic fault code can be saved, the problem of fault can be timely solved, and convenient and fast fault diagnosis is realized.

Description

technical field [0001] The present invention relates to the technical field of CAN (Controller Area Network, Controller Area Network) bus and fault diagnosis, in particular to a CAN bus system and a fault diagnosis method thereof. Background technique [0002] In the previous automotive electrical system, there were only simple devices such as switches and actuators, and the on-board communication was realized through point-to-point connections between each device. In order to improve the performance of automobiles, a large number of electronic systems have been introduced, resulting in a rapid increase in wiring harnesses, and a large increase in wiring harnesses has hindered the further improvement of automobile performance. There are many car controllers, but information resources cannot be shared. The overall arrangement space of the wiring harness is reduced, the flexibility is poor, and the manufacturing and difficulty are increased. Does not meet the requirements of...

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): B60R16/023H04L12/40
Inventor 付金勇赵澎徐梅李阳辛春
Owner BEIQI FOTON MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com