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Automobile Suspension System and Road Surface Roughness Measurement Method Based on Visual Sensing Technology

A technology of automobile suspension and visual sensing, which is applied in the direction of suspension, elastic suspension, measuring device, etc., and can solve safety problems and other problems

Active Publication Date: 2020-10-27
无锡尚好蓝图环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When an unmanned vehicle drives over a road with high unevenness at high speed, if a general active suspension is used to detect the vibration signal to control the suspension damping and vehicle speed after the vibration occurs, serious safety problems will arise

Method used

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  • Automobile Suspension System and Road Surface Roughness Measurement Method Based on Visual Sensing Technology
  • Automobile Suspension System and Road Surface Roughness Measurement Method Based on Visual Sensing Technology
  • Automobile Suspension System and Road Surface Roughness Measurement Method Based on Visual Sensing Technology

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Embodiment Construction

[0050] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0051] Such as figure 1 As shown, a kind of automobile suspension system based on visual sensing technology in this embodiment includes a non-suspension structure, the suspension structure is installed on its top through springs and adjustable shock absorbers, and the bottom of the non-suspension structure is a tire structure; it also includes a camera , which is electrically connected to the control module, the control module is connected to the CAN bus and the damping control module, and the damping control module includes a control motor and a motor amplifier.

[0052] The adjustable shock absorber is a hydraulic shock absorber, and the control motor controls the action of the oil outlet inside the hydraulic shock absorber; the control module adopts a fuzzy controller.

[0053] Design principle of the present invention:

[0054] For t...

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Abstract

The invention relates to an automobile suspension system based on visual sensor technology and a pavement non-flatness measurement method. Based on the automobile suspension system, a system camera isadopted to pre-scan a road surface condition in front of a vehicle, and firstly, a segmentation method based on an image gray threshold is applied to identify and plan the edge of a rough road surface; and secondly, a geometric structure characteristic method based on monocular vision is designed to calculate the rough area, so that a function model of the rough road surface area is constructed so as to obtain road surface non-flatness parameters. The hysteresis quality problem of semi-active suspension regulation can be effectively solved, and the problem of hysteresis quality of a suspension system in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of automobile suspension, in particular to an automobile suspension system based on visual sensing technology and a method for measuring road surface roughness. Background technique [0002] In the prior art, both the active suspension and the semi-active suspension use the acceleration sensor to collect the vibration state during the driving process of the vehicle, and the controller adjusts the suspension damping according to the vibration amount fed back by the acceleration sensor, which is an important factor causing hysteresis. The time lag has a great impact on the performance of the suspension system, and even leads to the instability of the feedback control system, which is extremely unfavorable to safety. Wheel jumps have seriously affected the improvement of the ride comfort of the active suspension, especially for short-distance bad road conditions. And irregular off-road roads do not work at all....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G17/0165B60G17/019G01B11/30
CPCB60G17/0165B60G17/019G01B11/303
Inventor 丁鹏解雅雯王莹
Owner 无锡尚好蓝图环保科技有限公司
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