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EOL detection method of EMS and EMS offline detection method

A detection method and consistent technology, applied in the field of vehicle detection, can solve problems such as fault codes that cannot be detected in real time

Pending Publication Date: 2021-05-18
DONGFENG MOTOR GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the defects in the prior art, the purpose of this application is to provide an EMS fault detection method in EOL and an EMS off-line detection method to solve the problem that the fault code cannot be detected in real time

Method used

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  • EOL detection method of EMS and EMS offline detection method
  • EOL detection method of EMS and EMS offline detection method

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Embodiment Construction

[0032] In order to make the objectives, technical solutions and advantages of the present application clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] The application mainly provides an EOL detection method of EMS, and the EMS is detected by an EOL detection program, including the steps:

[0034] After reading the part number of the EMS and comparing it with the preset reference part number, read the current and historical fault codes of the EMS;

[0035] If the specified fault code is read, the current snapshot data is read and sent to ...

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Abstract

The invention discloses an EMS fault detection method in EOL and an EMS offline detection method, and relates to the field of vehicle detection. The EOL detection method of the EMS comprises the steps that after the part number of the EMS is read and compared to be consistent with a preset reference part number, current and historical fault codes of the EMS are read; if a specified fault code is read, current snapshot data is read and sent to people for maintenance, wherein the snapshot data comprises fault generation time and vehicle state data at the time; and if a fault code is not read or a specified fault code is not read, the EMS is notified to clear the fault code, the current fault code of the EMS is read after the fault code is cleared, if the current fault code is not read, the EOL is detected to be qualified, and if the current fault code is read, data is sent to people for maintenance, wherein the first bit of the specified fault code is a P-series fault code, and the specified fault code is related to an engine emission system. Fault codes can be detected in time, and faults are prevented from flowing to the market.

Description

technical field [0001] The application relates to the field of vehicle detection, in particular to a method for detecting EMS faults in EOL and a method for detecting EMS offline. Background technique [0002] EOL inspection is the abbreviation of End of Line, which refers to the end of the vehicle inspection, which is used for the final inspection before the vehicle is produced and put into storage. It is specially designed for fault diagnosis, functional verification and other tests for the whole vehicle, as the last inspection process for the delivery of the vehicle to the customer. [0003] After the whole vehicle is assembled and initialized, the vehicle will be tested for EOL after a series of tests and dynamic road tests, including the test of the vehicle's EMS (Engine Management System, engine management system), which is confirmed by the EOL test results. The EMS hardware is assembled correctly, and the vehicle has no fault codes, ensuring that the engine system ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 杜浩鲁永山陈创苏波胡宁
Owner DONGFENG MOTOR GRP
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