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Automotive wiring harness conduction detection method

A detection method and wire harness detection technology are applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., which can solve problems such as poor interaction, incorrect wiring harness, and reduced operating efficiency, and achieve accurate and reliable detection data, simple implementation steps, and improved efficiency. The effect of work efficiency

Inactive Publication Date: 2011-02-23
SCHLEUNIGER HAOFENG TIANJIN MACHNERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the detection of the continuity of the automobile wiring harness has a single definition of error types, which cannot distinguish multiple error types, and cannot provide accurate positioning of the error position, so that the operator cannot accurately find the problem point and reduces the work efficiency.
Most of the existing conduction machines in China are controlled by PLC or single-chip microcomputer. The LED display can only display the serial number of a single I / O port. For incorrect wiring harnesses, more detailed information cannot be provided.
In this way, the interactivity is poor, and it is extremely inconvenient for the inspector to operate. The LED display cannot display intuitive and visualized graphics, which is not humanized enough.

Method used

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  • Automotive wiring harness conduction detection method
  • Automotive wiring harness conduction detection method
  • Automotive wiring harness conduction detection method

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Embodiment Construction

[0012] Below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure and features provided by the present invention are described in detail as follows:

[0013] Such as figure 1 As shown, the detection system of the present invention is composed of six parts: wire harness detection tooling table, I / O card, acquisition card, wire harness detection host, detection information display window, and barcode printer; the wire harness is fixed on the detection tooling table, and the wire harness detection tooling table There is a jig connected with the wiring harness on the top, so that the wires in the wiring harness can be connected with the wiring harness detection tooling platform, and an interface connected with the conduction machine is provided, which is used with the input and output ports on the I / O card, commonly known as I / O ports. The dedicated wires are docked one by one, and a closed-loop circuit is formed between t...

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Abstract

The invention relates to an automotive wiring harness conduction detection method. A method for detecting the connection of a single circuit comprises the following steps of: setting voltages V1 and V2 as voltages of the two ends of an automotive wiring harness loop respectively, applying a standard voltage to V1 and performing logic comparison on the voltage V2 to obtain a voltage Vo; and judging the voltage Vo to obtain a judgment result indicating whether a wiring harness is qualified or not. The automotive wiring harness detection method for detecting and judging a multi-loop multi-endpoint circuit comprises the following steps of: when all the endpoints of an automotive wiring harness need to be judged, defining a sending end and a receiving end, identifying each circuit, sending a standard voltage signal at the sending end, receiving the signal at the receiving end, comparing received data with standard data and judging to obtain the on-off and wiring conditions of the whole wiring harness; displaying a test result graph on a liquid crystal display and providing a voice prompt; and after all circuits pass the test, printing a product qualified tag or outputting a signal to control an automatic tool to pop up the automotive wiring harness. The method has a reasonable design and obvious effect.

Description

technical field [0001] The invention relates to a detection method for an automobile, in particular to a detection method for the conduction of an automobile wiring harness. Background technique [0002] The safety performance of automobile wiring harness is directly related to the safety of automobiles, so automobile manufacturers pay more and more attention to the quality of wiring harness. At present, the detection of the continuity of the automobile wiring harness has a single error type definition, which cannot distinguish multiple error types, and cannot provide accurate positioning of the error position, so that the operator cannot accurately find the problem point, and the work efficiency is reduced. Most of the existing conduction machines in China are controlled by PLC or single-chip microcomputer. The LED display can only display the serial number of a single I / O port, and cannot provide more detailed information for incorrect wiring harnesses. In this way, the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
Inventor 李双菊张涛
Owner SCHLEUNIGER HAOFENG TIANJIN MACHNERY
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