MODULE FOR SENSING DYNAMIC CONTACT PRESSURE OF TIRE AND TIRE TESTING APPARATUS USING THE SAME

• US 20160061681A1
• Filed: 04/25/2013
• Published: 03/03/2016
• Est. Priority Date: 04/17/2013
• Status: Abandoned Application

• Current Assignee: Chunil System Co., Ltd.
• Original Assignee: Chunil System Co., Ltd.
• Inventors: JANG, CheolHwan
• Application Number:
  US14/784,304
• Publication Number:
  US 20160061681A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01B 11/16 for measuring the deformation in a solid, e.g. optical strain gauge
• CPC Class Codes: G01B 5/30 for measuring the deformation in a solid, e.g. mechanical strain gauge
• CPC Class Codes: G01L 17/005 using a sensor contacting the exterior surface, e.g. for measuring deformation
• CPC Class Codes: G01M 17/02 Tyres
• CPC Class Codes: G01M 17/027 using light, e.g. infrared, ultraviolet or holographic techniques

Abstract

The present invention relates to a device for testing static characteristics and a dynamic contact pressure of a tire and, more specifically, to a module for sensing a dynamic contact pressure of a tire, which is installed on a road surface, measures a tire contact pressure and a deformation amount generated between a tire and the road surface in the course of actually driving a vehicle, to predict and analyze wearing performance of the tire, control stability (cornering), braking performance, rotation resistance, and the like, and includes a plurality of cameras capable of close-up imaging to make a distance between a contact plate and a camera narrow to lower an overall height, thereby simplifying a configuration and easily moving, and a tire testing apparatus using the same.

Claims

1. A module for sensing a dynamic contact pressure of a tire, which performs a test suitable for a road situation by changing an installation place or a disposition position, the module comprising:

a transparent contact plate which comes in contact with a tire;

a 3-axis road cell which is installed on a lower face of the contact plate and measures force acting in each direction of x, y, and z axes generated on the tire;

a camera module which takes an image of a contact face of the tire coming in contact with the contact plate;

a support plate to which the camera module and the 3-axis load cell are fixed and supported; and

a computer which includes a program of calculating a dynamic contact pressure, a contact shape, and a deformation amount from signals detected by the camera module and the 3-axis load cell, and an image correction program.

2. The module for sensing a dynamic contact pressure of a tire according to claim 1, wherein unevenness is formed on an upper face of the transparent contact plate.

3. The module for sensing a dynamic contact pressure of a tire according to claim 1, further comprising a communication module for transmitting the signals detected by the 3-axis load cell and the camera module to the computer.

4. The module for sensing a dynamic contact pressure of a tire according to claim 1, wherein the support plate is provided with a lighting device which irradiates a surface of the tire coming in contact with the ground to generate shadow.

5. The module for sensing a dynamic contact pressure of a tire according to claim 1, wherein the camera module is formed by vertically and horizontally arranging a plurality of cameras.

6. The module for sensing a dynamic contact pressure of a tire according to claim 1, wherein each camera constituting the camera module is provided with a lighting device.

7. A vehicle tire testing apparatus using the module for sensing a dynamic contact pressure of a tire according to claim 1,

wherein at least one sensing module is installed along a movement path on which a vehicle moves, a vehicle detecting sensor for detecting a vehicle is further provided at a portion to which the vehicle enters, and signals detected by the 3-axis and the camera module of each sensing module are transmitted to the computer through a communication module.

8. The tire testing apparatus using a module for sensing a dynamic contact pressure of a tire according to claim 7, wherein the sensing module is fixed onto the ground surface on which a vehicle movement path is formed, and is provided with inclination plates for a vehicle to easily put on the sensing module, at front and rear ends of each sensing module.