Vehicle fault detection method and device and vehicle

A vehicle and fault technology, applied in the field of vehicles, can solve problems such as difficulty in judging the type of fault, and achieve the effect of simplifying troubleshooting operations, ensuring stable operation, and improving efficiency

Active Publication Date: 2020-02-11
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose a vehicle fault detection method, device and vehicle to solve the problem in the prior art that it is difficult to judge the specific fault type when the vehicle is abnormal

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  • Vehicle fault detection method and device and vehicle
  • Vehicle fault detection method and device and vehicle
  • Vehicle fault detection method and device and vehicle

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Embodiment Construction

[0065] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0066] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0067] refer to figure 1 , shows a flow chart of the steps of an embodiment of a vehicle fault detection method of the present invention, the method may specifically include the following steps:

[0068] Step 101, when the vehicle is abnormal, the output signal of the brake light switch is obtained.

[0069] Wherein, the output signal of the brake light switch includes a vehicle body controller signal and a vehicle controller signal. The brake light switch is respectively connected to the body controller and the vehicle controller through two hard wire signals, and the actual state of the brake light switch is sent to the body controller and the vehicle controller. The body controller...

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Abstract

The invention provides a vehicle fault detection method and device and a vehicle. The vehicle fault detection method comprises the following steps: when a vehicle has an abnormal condition, obtainingthe output signal of a stop lamp switch, wherein the output signal comprises a vehicle body controller signal and a vehicle controller signal; determining whether the output signal of the stop lamp switch meets the preset abnormal condition; if yes, obtaining the position information to determine whether the vehicle has operation fault, wherein the position information comprises the position information of a brake pedal and the position information of an accelerator pedal; and on the condition that the vehicle does not have the operation fault, determining the vehicle fault according to the pressure information of a master cylinder, the output signal of the stop lamp switch and the target position information. The vehicle fault detection method simplifies the vehicle fault troubleshootingoperation and improves the vehicle fault detecting efficiency.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a vehicle fault detection method, device and vehicle. Background technique [0002] At present, the brake light switch on the vehicle is to provide braking signals for each unit of the vehicle. When the vehicle's control system is abnormally matched, the vehicle will experience problems such as weak acceleration, cruise failure, and abnormal lighting of the brake light. [0003] In the prior art, when troubleshooting the above-mentioned faults of the vehicle, the inspectors of the vehicle cannot obtain accurate judgment based on the real-time vehicle condition data when the vehicle breaks down, so it is difficult to distinguish whether the fault of the vehicle is the damage of the brake light switch itself or the fault of the vehicle. The problem of abnormal matching of the control system. Therefore, the existing fault is usually solved by directly replacing the brake light swi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/023
CPCB60R16/0232
Inventor 李准范志刚谢长浩徐荣昌李超乔珍李文杰樊阳丁国峰李振涛
Owner GREAT WALL MOTOR CO LTD
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