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Real vehicle function safety fault injection test method and system

A technology of fault injection and functional safety, which is applied in the direction of test/monitoring control system, general control system, electrical test/monitoring, etc. It is difficult to grasp, save a lot of work, and realize the effect of on-off control

Pending Publication Date: 2021-10-01
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent does not address the correlation between fault injection testing and functional safety requirements, nor does it involve testing whether functional safety requirements are met

Method used

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  • Real vehicle function safety fault injection test method and system
  • Real vehicle function safety fault injection test method and system
  • Real vehicle function safety fault injection test method and system

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Experimental program
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test Embodiment ID

[0028] see image 3 , the present invention provides a kind of actual vehicle functional safety fault injection test method, obtains test case according to the test case ID to be tested, judges whether the fault injection condition of real vehicle meets the requirement, if so, then enters the test stage, and test method specifically comprises the following steps:

[0029] Step A: Receive the CAN message of the ECU that needs fault injection through channel one;

[0030] Step B: Change the CAN message according to the test case;

[0031] Step C: Integrate the changed CAN message;

[0032] Step D: sending the integrated CAN message of step C through channel 2;

[0033] Step E: Obtain the feedback information of the vehicle after the fault is injected, wherein the vehicle after the fault is injected is the vehicle that has received the integrated CAN message in step D;

[0034] Step F: Compare the feedback information with the expected result of fault injection of the test cas...

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PUM

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Abstract

The invention relates to a real vehicle function safety fault injection test method and a system, a test case is obtained according to a to-be-tested test case ID, whether the fault injection condition of a real vehicle meets the requirement is judged, if yes, a test stage is entered, and the test method specifically comprises the following steps: step A, receiving a CAN message of an ECU needing fault injection through a channel I; step B, changing the CAN message according to the test case; step C, integrating the changed CAN messages; step D, sending the CAN message integrated in the step C through a second channel; step E, obtaining feedback information of the whole vehicle after the fault is injected, wherein the whole vehicle after the fault is injected is the whole vehicle receiving the CAN message integrated in the step D; step F, comparing the feedback information with a fault injection expected result of the test case; and G, generating a test report. According to the invention, whether the function safety of the automatic driving system of the whole vehicle meets requirements can be tested.

Description

technical field [0001] The invention relates to the technical field of automotive functional safety testing, in particular to the actual vehicle functional safety fault injection testing technology. Background technique [0002] The rapid development of electronic technology integration and its extensive application in automobiles has greatly promoted the development of the automobile industry. The safety issues brought about by automobile electronic and electrical products are becoming more and more important. The national government departments, automobile and parts enterprises and users More and more attention is paid to the functional safety of products. In this context, it is urgent to put forward new functional safety requirements for automotive electronic and electrical products in many aspects such as design, research and development, testing and production management. With the development of automatic driving, in addition to realizing most of the functions of drivin...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0256
Inventor 庞迎春郑静蓉周宏伟王俊明陈书锋花町李金洋何文谢春燕
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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