Check patentability & draft patents in minutes with Patsnap Eureka AI!

Axle fault diagnosis method, device and equipment and storage medium

A fault diagnosis and axle technology, which is applied to measurement devices, vehicle testing, instruments, etc., can solve problems such as failure to detect axle faults, vehicle faults, and impact on driver or vehicle safety.

Inactive Publication Date: 2020-11-13
FAW JIEFANG AUTOMOTIVE CO
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the driver is driving the vehicle, if the axle fails, the vehicle will be more bumpy, and the driver can feel it, but if the degree of vehicle bumps is small, the driver may not feel it, so that the failure of the axle cannot be discovered in time; or, In unmanned driving, since there is no driver in the vehicle, when the axle fails, it cannot be found in time. The occurrence of the above situations will cause the vehicle to malfunction and affect the safety of the driver or the vehicle itself.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Axle fault diagnosis method, device and equipment and storage medium
  • Axle fault diagnosis method, device and equipment and storage medium
  • Axle fault diagnosis method, device and equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] figure 1 It is a flow chart of a method for diagnosing vehicle axle faults provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of diagnosing vehicle axle faults. The method can be executed by a vehicle axle fault diagnosis device, and specifically includes the following steps:

[0028] Step S110, obtaining the voltage value at both ends of the electric bridge in the vehicle, and the strain gauges of the electric bridge are installed on the vehicle axle.

[0029] In this embodiment, the strain gauge is an element for measuring strain composed of a sensitive grid and the like. Its working principle is that when the conductor or semiconductor material used to make the strain gauge is mechanically deformed under the action of an external force, its resistance value will change accordingly. Change, the strain gauge in the embodiment of the present application adopts a nominal resistance value of 120 ohms, a maximum deformation of...

Embodiment 2

[0041] figure 2 It is a flow chart of an axle fault diagnosis method provided by Embodiment 2 of the present invention. The technical solution of this embodiment is further refined on the basis of the above-mentioned technical solution, and specifically mainly includes the following steps:

[0042] Step S210, obtaining the voltage value at both ends of the electric bridge in the vehicle, and the strain gauges of the electric bridge are installed on the vehicle axle.

[0043] The manner of obtaining the voltage value at both ends of the bridge may be: obtaining the voltage signal at both ends of the bridge, determining the digital signal according to the voltage signal, and determining the voltage value according to the digital signal.

[0044]The voltage signal output at both ends of the bridge is converted into a digital signal through an analog-to-digital converter (A / D). At this time, the digital signal is a binary number, and the digital signal is converted into a decima...

Embodiment 3

[0084] Figure 5 A structural diagram of an axle fault diagnosis device provided by Embodiment 3 of the present invention, the device includes: an acquisition module 31 , a pressure value determination module 32 and a fault determination module 33 .

[0085] Among them, the acquisition module 31 is used to obtain the voltage value at both ends of the electric bridge in the vehicle, and the strain gauges of the electric bridge are installed on the vehicle axle; the pressure value determination module 32 is used to determine the voltage value according to the voltage value and the corresponding piecewise linear parameters The pressure value of the strain gauge; the failure determination module 33, configured to determine that the vehicle axle is faulty if the pressure value is outside the preset threshold range, otherwise determine that the vehicle axle is normal.

[0086] An embodiment of the present invention provides a vehicle axle fault diagnosis device. By obtaining the vol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses an axle fault diagnosis method, device and equipment and a storage medium, and the method comprises the steps: obtaining the voltage values of two ends of anelectric bridge in a vehicle, and enabling a strain gauge of the electric bridge to be installed on an axle; determining a pressure value of the strain gauge according to the voltage value and the corresponding piecewise linear parameter; and if the pressure value is out of the preset threshold range, determining the axle fault, otherwise, determining the axle to be normal, and solving the problems that in the vehicle driving process, a driver cannot find the axle fault in time, and the axle fault cannot be found due to no driver during unmanned driving. A strain gauge is arranged on an axle;the strain gauges and other resistors form a bridge; the pressure value is determined according to the voltage values at the two ends of the electric bridge, whether the axle breaks down or not is determined by judging the relation between the pressure value and the preset threshold range, the change of the axle is detected through the change of the strain gauges, vehicle accidents caused by the fact that the axle breaks down and is not found in time are avoided, and the safety of vehicles and drivers is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of vehicle fault diagnosis, and in particular to a vehicle axle fault diagnosis method, device, equipment and storage medium. Background technique [0002] The main function of the axles in a vehicle is to carry the load and keep it moving on the road. According to different suspension structures, there are two types: integral type and disconnected type. The integral axle is like a huge barbell, with a rigid solid or hollow beam in the middle, and the two ends support the body through the suspension system, usually with non-independent suspension; the disconnected axle is like two umbrellas inserted between the two sides of the body. side, and then support the body through the suspension system, which can only be used with independent suspension. In addition to the load-carrying function, the drive axle also has the functions of driving, deceleration and differential speed. [0003] ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G01L1/22
CPCG01M17/007G01L1/22
Inventor 王猛李永军李论程传河郑德双陆浩
Owner FAW JIEFANG AUTOMOTIVE CO
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More