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Wheel and parameter measurement method for wheel

A parameter measurement and wheel technology, which is applied in wheel testing, automobile tire testing, measuring devices, etc., can solve the problem of low vehicle maneuverability control accuracy, inability to timely grasp tire grounding conditions and force conditions, and early warning of dangerous working conditions and other issues to achieve the effect of improving the control accuracy

Pending Publication Date: 2019-12-06
易瑞博科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At this stage, due to the inability to timely grasp the ground contact and force of the tires during the driving process of the car, the control accuracy of the car's maneuverability is not high, and many dangerous working conditions cannot be warned in advance
Especially in the dangerous working condition of the wheel slipping, the car cannot give early warning and can only deal with it passively

Method used

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  • Wheel and parameter measurement method for wheel
  • Wheel and parameter measurement method for wheel
  • Wheel and parameter measurement method for wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] figure 1 The structural representation of the wheel provided for the embodiment of the present invention; figure 1 As shown, the wheel provided by Embodiment 1 of the present invention includes a rim 3 and a tire 2 mounted on the rim 3, and a range finder 4 is installed on the outer surface of the rim 3, and the range finder 4 is used for real-time The radial distance between the outer surface of the rim 3 and the inner surface of the tire 2 is measured.

[0039] Specifically, the rim 3, the tire 2 and the rangefinder 4 rotate coaxially.

[0040] Specifically, the distance measuring instrument 4 is a distance measuring sensor.

[0041] Specifically, the range finder 4 is installed on the outer surface of the rim 3 by means of bonding or mechanical connection.

[0042] Preferably, the rangefinder 4 is mounted on the outer surface of the rim 3 by using a connecting piece 5 .

[0043] Specifically, the connecting member 5 is a bolt or a pin.

[0044] It should be note...

Embodiment 2

[0051] figure 2 A schematic diagram of the parameter geometric relationship of the parameter measurement method for the wheel provided by the embodiment of the present invention; image 3 The rangefinder output signal diagram for the parameter measurement method of the wheel provided by the embodiment of the present invention; Figure 2-Figure 3 As shown, the parameter measurement method for the wheel provided by the second embodiment includes the following steps:

[0052] Measure the radial distance between the outer surface of the rim and the inner surface of the tire within one rotation cycle of the wheel to obtain multiple distance parameters and corresponding tire rotation angles;

[0053] Obtaining a radial distance function of the outer surface of the rim and the inner surface of the tire as a function of time from the function of the tire rotation angle as a function of time and the plurality of distance parameters and the corresponding tire rotation angle;

[0054]...

Embodiment 3

[0103] The present application also provides an automobile, including the above-mentioned wheel.

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Abstract

The invention discloses a wheel. The wheel comprises a rim and a tire mounted on the rim, wherein a distance meter is mounted on the outer surface of the rim, and the radial distance between the outersurface of the rim and the inner surface of the tire can be measured in real time through the distance meter. In the vehicle moving process, the distance meter rolls along with the rim, measures thedistance between the outer surface of the rim and the inner surface of the tire at certain frequency in real time and transmits distance values to a vehicle controller in real time, thereby, providingtire rolling radius parameters for kinetic control of vehicles. On the basis, the invention further provides a parameter measurement method for the wheel and an automobile.

Description

technical field [0001] The invention relates to a wheel and a parameter measuring method for the wheel. Background technique [0002] The existing technology can only measure the rotational speed of the wheel, but cannot measure the rolling radius of the tire, so the linear velocity of the tire at the contact point cannot be accurately calculated. [0003] The reasons for these shortcomings and problems are as follows: [0004] When the vehicle is in motion, the tire deforms under the load of the vehicle, causing the rolling radius of the tire to be different from its inflated radius in the free state. Therefore, using the inflated radius in the free state to replace the rolling radius has a large error. [0005] At this stage, due to the inability to timely grasp the ground contact status and stress of the tires during the driving process of the car, the control accuracy of the car's maneuverability is not high, and many dangerous working conditions cannot be warned in ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/02B60B21/12G01M17/013G01M17/02G01D21/02
CPCB60R16/02B60B21/12G01M17/013G01M17/02G01D21/02
Inventor 项大兵李昭刘源王昊危银涛
Owner 易瑞博科技(北京)有限公司
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