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OTA upgrading system and method for automobile CAN controller

A CAN controller and controller technology, applied in transmission systems, version control, program control devices, etc., can solve problems such as the inability to guarantee site and time convenience, and achieve the effect of reducing manual operation costs and ensuring reliability.

Inactive Publication Date: 2020-12-08
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires staff to operate on-site. For the sold vehicles, it is necessary to coordinate customers to return to the 4S store to complete the relevant work. The convenience of the venue and time cannot be guaranteed.

Method used

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  • OTA upgrading system and method for automobile CAN controller
  • OTA upgrading system and method for automobile CAN controller

Examples

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0015] An automotive CAN controller OTA upgrade system, such as figure 1 As shown, it includes OTA background server 1 (cloud server), Tbox2 (TelematicsBOX, telematics processor) and CAN controller 3, and described OTA background server 1 is used for communicating with the manufacturing system to obtain the upgrading software of CAN controller;

[0016] Tbox2 is used to obtain the software version information of CAN controller 3, and compares the software version information of CAN controller 3 with the OTA cloud controller version stored in OTA background server 1, when the software version information of CAN controller 3 is lower than When the OTA cloud controller version starts, the CAN controller upgrade file download process starts;

[0017] Tbox2 is used to verify the security and integrity of the CAN controller upgrade file according to ...

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PUM

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Abstract

The invention relates to an OTA upgrading system for an automobile CAN controller. An OTA background server of the OTA upgrading system is used for communicating with a production and manufacturing system to obtain upgrading software of the CAN controller; Tbox is used for acquiring software version information of the CAN controller, comparing the software version information of the CAN controllerwith an OTA cloud controller version stored in the OTA background server, and starting a CAN controller upgrading file downloading process when the software version information of the CAN controlleris lower than the OTA cloud controller version; Tbox is used for carrying out security and integrity verification on the CAN controller upgrading file according to the vehicle end PKI certificate; andTbox is used for analyzing the CAN controller upgrading file and carrying out software upgrading on the CAN controller according to the upgrading package obtained by analysis. According to the invention, the software upgrading efficiency of the CAN controller can be improved, and the upgrading reliability is ensured.

Description

technical field [0001] The invention relates to the technical field of automotive software upgrades, in particular to an OTA (Over the Air) upgrade system and method for an automotive CAN (Controller Area Network, CAN) controller. [0002] technical background [0003] With the communication and interaction between smart devices and smart cars, the integration and version update of multiple data sources in the Internet of Vehicles has become a problem that car manufacturers and related standard departments need to solve. It is critical to consider how to use advanced over-the-air update technology Over-The-Air to update the software of electronic controllers throughout the entire vehicle life cycle. [0004] The traditional CAN upgrade method is to use a handheld diagnostic device or an offline diagnostic device, through the on-board OBD diagnostic port, use the UDS protocol, and perform offline software upgrades for the controller according to the controller Bootloader flash...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/61G06F8/65G06F8/71G06F9/4401G06F11/10H04L12/40H04L29/06H04L29/08
CPCG06F8/63G06F8/65G06F8/71G06F9/4401G06F11/1004H04L12/40006H04L63/123H04L67/34H04L2012/40215H04L2012/40273
Inventor 蔡营骆嫚曹恺王鑫岳意娥
Owner DONGFENG MOTOR CORP HUBEI
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