A time parameter testing method, device, equipment and medium for diagnostic fault codes

By controlling the target function state change and reading the diagnostic trouble code state within a preset time period, the problem of large error in the diagnostic trouble code time parameter test in the prior art is solved, and accurate time parameter measurement is achieved.

CN116700226BActive Publication Date: 2025-09-12IMOTION AUTOMOTIVE TECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202310911853.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-24
Publication Date
2025-09-12
Estimated Expiration
2043-07-24

AI Technical Summary

Technical Problem

The existing technology has large errors when testing the time parameters of diagnostic fault codes on a test bench, and it is impossible to accurately determine whether the time parameters meet the test requirements.

Method used

By controlling the target function state change before and after the preset time period and sending a diagnostic request to the electronic control unit to be tested, the first state and second state of the diagnostic fault code are read. If the first state is the target state and the second state is the preset state, it is determined that the preset time period meets the test requirements.

Benefits of technology

It achieves accurate measurement of the time parameters of the diagnostic trouble code, eliminates the deviation caused by the internal processing time of the software and the response to the diagnostic reply, and controls the error within one message cycle.

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Abstract

The present application discloses a method, apparatus, device, and medium for testing the time parameters of a diagnostic trouble code, relating to the field of vehicle diagnostic technology, including: determining a preset time period corresponding to a target function set in an electronic control unit to be tested; the preset time period is the time required for the diagnostic trouble code corresponding to the target function to change from a target state to a preset state; before the preset time period, controlling the target function to change to a current functional state, and sending a diagnostic request to the electronic control unit to be tested to read a first state of the current diagnostic trouble code; after the preset time period, controlling the target function to change to a current functional state, and sending a diagnostic request to the electronic control unit to be tested to read a second state of the current diagnostic trouble code; if the first state is the target state and the second state is the preset state, then determining that the preset time period meets the test requirements. The present application can accurately measure the time parameters of the diagnostic trouble code to determine whether the time parameters meet the test requirements.
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