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CAN message sending method and device, storage medium and electronic equipment

A message sending, CAN bus technology, applied in the direction of electrical components, data exchange through path configuration, data exchange network, etc.

Pending Publication Date: 2020-05-05
ZHUHAI GUANGTONG AUTOMOBILE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a CAN message sending method, device, storage medium and electronic equipment, which solves the problem of message sending delay caused by CAN bus contention in the prior art, and improves CAN bus transmission efficiency

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  • CAN message sending method and device, storage medium and electronic equipment
  • CAN message sending method and device, storage medium and electronic equipment
  • CAN message sending method and device, storage medium and electronic equipment

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Embodiment Construction

[0035] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with the meanings in the co...

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Abstract

The invention provides a CAN message sending method and device, a storage medium and electronic equipment. The method comprises the following steps: configuring a message sending period of each node according to the priority of each node on a CAN bus; determining a synchronous message sending period of the CAN bus according to the message sending period of each node; allocating a sending permission of the synchronization message to a first node with the highest priority level, so that the first node sends the synchronization message according to the synchronization message sending period; andaccording to the message sending period of each node and the synchronous message sending period, sending the synchronization message, and configuring a corresponding message sending time point of eachnode in the same synchronization message sending period, so that each node sends a message according to the corresponding message sending time point, and the message sending time points of the nodesdo not coincide with each other. According to the invention, CAN network bus competition can be avoided, the problem of CAN message delay is solved, and the CAN bus transmission efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of bus communication, in particular to a CAN message sending method, device, storage medium and electronic equipment. Background technique [0002] With the continuous development of electric vehicle technology, more and more electronic units are applied to automotive systems, and a large number of CAN nodes, including vehicle controllers, motor controllers, and battery management systems, are connected to the CAN bus. In the communication process, because each node can send communication data at any time regardless of the master and slave, it must rely on strict arbitration mechanism to realize the effective transmission of data on the bus. However, when two or more nodes have sending requests at the same time, it is always difficult for the nodes with low priority to obtain the right to occupy the bus. The message will not be sent for a long time, it will face serious transmission delay problems, and even...

Claims

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Application Information

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IPC IPC(8): H04L12/40H04J3/06
CPCH04L12/40006H04J3/0638H04L2012/40215
Inventor 庞聪燕江开东孙丰涛戴安康
Owner ZHUHAI GUANGTONG AUTOMOBILE
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