Security access control method for vehicle diagnosis system

An automotive diagnostic system and security access control technology, applied in electrical testing/monitoring, etc., can solve problems such as loss of OEMs and users, and achieve the effect of improving safety and reliability

Active Publication Date: 2014-01-22
BEIBEN TRUCKS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This secure access mechanism requires that the algorithms of the diagnostic instrument and the electronic control unit must be consistent. Once the algorithm of one party is leaked, the calculation method of the entire key must be changed, causing major losses to the OEM and the user.

Method used

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  • Security access control method for vehicle diagnosis system
  • Security access control method for vehicle diagnosis system

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Embodiment Construction

[0021] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 2 As shown, the present invention provides the present invention provides a security access control method for automotive diagnostic systems, comprising the following steps:

[0023] S1. The diagnostic instrument of the vehicle diagnostic system sends a diagnostic mode request to the electronic control unit of the vehicle diagnostic system, and the diagnostic mode determines the security access level to be requested;

[0024] In this embodiment, the diagnosis mode is a vehicle factory diagnosis mode. The diagnosis mode is divided into two modes: general diagnosis and self-defined diagnosis. The basis of the general diagnosis mode is the conventional diagnosis protocol. The self-defined diagnosis ...

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Abstract

The invention relates to a security access control method for a vehicle diagnosis system and belongs to the technical field of vehicle electronics and vehicle security system design. According to the security access control method, security access levels are increased, and an electronic control unit is additionally arranged to be used as a judgment criterion of the security access control, so the safety and reliability are improved.

Description

technical field [0001] The invention relates to the technical field of automotive electronics and automotive safety system design, in particular to a security access control method for an automotive diagnostic system. Background technique [0002] With the development of the automobile industry, more and more semiconductor and computer technologies are used in automobiles, accompanied by the increase of vehicle electronic faults, it is difficult to rely on workers to judge faults through experience during maintenance and testing. The new technologies in the control system are constantly updated, and the data update and parameter calibration of the vehicle electronic control unit are becoming more and more common. [0003] As the main means of vehicle fault detection, automobile diagnosis system is widely used in various types of vehicles, including diagnostic instruments and electronic control devices. In the development of the current automotive diagnostic system, each con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
Inventor 何平国杨晶晶陈晓俊
Owner BEIBEN TRUCKS GRP
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