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Wire harness electrical fault detection method, device and controller

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

Active Publication Date: 2022-04-29
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a wiring harness electrical fault detection method, device and controller to overcome the problem in the prior art that the electrical fault of the wiring harness on the vehicle cannot be diagnosed in a timely and effective manner

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  • Wire harness electrical fault detection method, device and controller
  • Wire harness electrical fault detection method, device and controller
  • Wire harness electrical fault detection method, 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 present application provides a wire harness electrical fault detection method, device, and controller. The method includes: receiving the first fault information sent by the driver chip and starting timing; Set time, determine whether there is a fault of the first target electric wire in at least one first electric wire; send a channel activation signal to the driver chip, so that the driver chip sends a pulse test signal to the wire harness in real time and feeds back Second fault information: receiving the second fault information in real time and counting the number of feedback times of the second fault information fed back by the driver chip; determining whether the at least one second electric wire exists according to the number of feedback times and the preset number A fault with a second fault type occurs on the second target wire. The method provided by the embodiment of the present application can overcome the problem in the prior art that the electrical fault of the wiring harness on the vehicle cannot be diagnosed in a timely and effective manner.

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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Patent Type & Authority Patents(China)
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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