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Fault diagnosis method and device, storage medium and vehicle

A fault diagnosis and fault technology, which is applied in the testing of measuring devices, vehicle components, vehicles, etc., can solve the problems of increased diagnostic workload and complex fault diagnosis operations.

Active Publication Date: 2020-06-30
BYD CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present disclosure provides a fault diagnosis method and device, a storage medium, and a vehicle to solve the problems of complicated fault diagnosis operations and increased diagnostic workload caused by different vehicles using different communication diagnosis protocols in the related art

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  • Fault diagnosis method and device, storage medium and vehicle
  • Fault diagnosis method and device, storage medium and vehicle
  • Fault diagnosis method and device, storage medium and vehicle

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Embodiment Construction

[0068] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0069] The communication diagnostic protocols described in this disclosure can be ISO14229, ISO15765, ISO14230, SAEJ1939 and other communication diagnostic protocols. Since the two communication diagnostic protocols of ISO14229 and SAEJ1939 have been gradually eliminated, the two communication diagnostic protocols of ISO15765 and ISO14230 are still in use. In use, therefore, in the embodiments of the present disclosure, two communication diagnosis protocols, ISO15765 and ISO14230, are taken as examples to illustrate the fault diagnosis method and device, storage medium and vehicle.

[0070] The fault diagnosis method and device, storage medium and vehicle des...

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Abstract

The invention relates to a fault diagnosis method and device, a storage medium and a vehicle, and aims to solve the problems of complex fault diagnosis operation and increased diagnosis workload due to the fact that different vehicles adopt different communication diagnosis protocols in related technologies. The fault diagnosis method comprises the steps of sending diagnosis frames corresponding to all communication diagnosis protocols to a diagnosed component so as to enable the diagnosed component to feed back a response frame; analyzing the response frame to obtain a fault code; and comparing the fault code with a fault code in a fault code library to obtain the specific content of the fault code.

Description

technical field [0001] The present disclosure relates to the field of vehicle fault diagnosis, and in particular, to a fault diagnosis method and device, a storage medium, and a vehicle. Background technique [0002] With the development of automotive electronics, the electronic control unit becomes more and more complex, so vehicle fault diagnosis becomes more and more important. Currently, widely used communication diagnostic protocols in the market include ISO14229, ISO15765, ISO14230, SAEJ1939, etc. Different communication diagnostic protocols use different diagnostic service commands. [0003] So far, the two communication diagnostic protocols of ISO14229 and SAEJ1939 have been gradually eliminated, and the two communication diagnostic protocols of ISO15765 and ISO14230 are still in use. The ISO14230 communication diagnostic protocol was widely used before 2008, and after 2008, the ISO15765 communication diagnostic protocol gradually replaced the ISO14230 diagnostic pr...

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Application Information

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IPC IPC(8): G01M17/007B60R16/02
CPCG01M17/007B60R16/02
Inventor 黄明王洪军薛伟光朱刘洋宁凯宇
Owner BYD CO LTD