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CAN bus gateway, communication method related with the CAN bus gateway, and communication system thereof

A technology of CAN bus and communication method, which is applied in the field of CAN bus gateway, can solve the problems of design and development cost, product production control cost, and after-sales maintenance cost increase, and achieve the effect of reducing design and development cost, product production control cost, and after-sales maintenance cost

Active Publication Date: 2016-03-02
BYD CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a CAN bus gateway, a communication method implemented in the CAN bus gateway and a communication method and system using the CAN bus gateway, so as to solve the design and development problems brought by designing the vehicle-mounted gateway according to the vehicle configuration in the prior art Cost and product production control costs and increased after-sales maintenance costs

Method used

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  • CAN bus gateway, communication method related with the CAN bus gateway, and communication system thereof
  • CAN bus gateway, communication method related with the CAN bus gateway, and communication system thereof
  • CAN bus gateway, communication method related with the CAN bus gateway, and communication system thereof

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Embodiment approach

[0022] According to one embodiment of the present invention, the method also includes:

[0023] S106, receiving a message sent by the destination node in response to the request, the message including the requested data and the ID of the destination node; and

[0024] S108. Forward the message to the requesting node.

[0025] Wherein, the request further includes a transmission rate, and the message is forwarded to the requesting node at the transmission rate. And, an appropriate timer is set according to the transmission rate. Those skilled in the art should understand that the timer can be set in an existing manner, which is not limited in the present invention.

[0026] According to one embodiment of the present invention, the method also includes:

[0027] judging whether the ID of the destination node included in the request is the same as the ID of the node stored in the cache;

[0028] In the case of judging to be the same, updating the transmission rate stored in t...

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Abstract

The invention discloses a controller area network (CAN) bus gateway, a communication method related with the CAN bus gateway, and a communication system thereof, wherein the communication method applied in the CAN bus gateway comprises the steps of receiving a request which comes from a requesting node of a first CAN network and is used for requesting data from a target node in a second CAN network, wherein the request comprises the identification of the second CAN network and the ID of the target node; analyzing the request for obtaining the identification of the second CAN network and the ID of the target node; and forwarding the request to the target node in the second CAN network based on the obtained identification of the second CAN network and the ID of the target node. Through applying the CAN bus gateway, the communication method and the communication system in a vehicle, even when a certain module in the module requires acquisition for related information of other networks because of a function adding requirement, and variation or modification of the gateway is not required. Furthermore intelligent information forwarding is realized.

Description

technical field [0001] The present invention relates to a CAN bus gateway and a communication method and system related to the CAN bus gateway, in particular to a CAN bus gateway, a communication method implemented in the CAN bus gateway, and a communication method using the CAN bus gateway and system. Background technique [0002] With the continuous development of automotive electronics and computer control technology, the number of electrical nodes loaded on each network of the vehicle is increasing, and the amount of data interaction between networks is also increasing; The data exchanged between them is also different. This also poses a big challenge to the information routing of the network—the design of the vehicle-mounted gateway. The vehicle-mounted gateway has an intelligent information forwarding processing mechanism, which can identify the information needs of each module on the network and realize information forwarding. In the existing technology, most automo...

Claims

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Application Information

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IPC IPC(8): H04L12/40H04L12/66
Inventor 磨俊生肖亚芳
Owner BYD CO LTD
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