Wiring harness electrical fault detection method and device and controller

A technology of electrical faults and detection methods, which is applied in the direction of measuring devices, instruments, and measuring electronics, and can solve problems such as the inability to diagnose vehicle wiring harnesses in a timely and effective manner

Active Publication Date: 2020-05-08
WEICHAI POWER CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a wiring harness electrical fault detection method, device and controller to overcome

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  • Wiring harness electrical fault detection method and device and controller
  • Wiring harness electrical fault detection method and device and controller
  • Wiring harness electrical fault detection method and device and controller

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Embodiment Construction

[0062] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0063] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodime...

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Abstract

The embodiment of the invention provides a wire harness electrical fault detection method and device and a controller. The method comprises the steps of receiving first fault information sent by a driving chip, and starting timing; according to the timing time when the driving chip sends the first fault information and the preset time, determining whether a fault containing a first fault type occurs in a first target wire in the at least one first wire or not; sending a channel activation signal to the driving chip, so that the driving chip sends a pulse test signal to a wire harness in real time and provides feedback of second fault information; receiving the second fault information in real time and counting the feedback times of the second fault information provided by the driving chip;and according to the feedback frequency and a preset number, determining whether a fault containing a second fault type occurs in a second target wire in the at least one second wire. According to the method provided by the embodiment of the invention, the problem that electrical faults of a wire harness on a vehicle cannot be timely and effectively diagnosed in the prior art can be solved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of fault detection, and in particular to a method, device and controller for detecting an electrical fault of a wiring harness. Background technique [0002] With the increasing use of electronically controlled vehicles, more and more actuators are connected to the vehicle control unit through the wiring harness, and the electrical fault diagnosis of the corresponding wiring harness is becoming more and more important. [0003] Common electrical faults in automotive wiring harnesses are mainly open circuits and short circuits between wires. Open-circuit faults lead to loss of control of electrical equipment; short-circuit faults can damage electrical equipment or produce erroneous operations and displays. Therefore, the quality of the wiring harness directly affects the overall performance and running status of the car. [0004] However, in the prior art, it is impossible to tim...

Claims

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Application Information

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IPC IPC(8): G01R31/58
Inventor 张雷波闫立冰张娟赵鲁荣
Owner WEICHAI POWER CO LTD
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