Device and method for measuring outer inclination angle of vehicle tyre
A camber angle and tire technology, applied in the field of measurement, can solve problems such as difficulties in monitoring dynamic changes in camber angle
Inactive Publication Date: 2010-08-25
JIANGSU UNIV
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[0005] The main purpose of the patent of the present invention is to provide a device and method, through which the camber angle of the vehicle tire can be easily determined during driving, and the problem of difficult monitoring of the dynamic change of the vehicle tire camber angle can be solved
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[0026] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0027] As shown in Figure 1, a kind of device for measuring vehicle tire camber, comprises:
[0028] The upper laser transmitter 5 is installed on the upper side edge of the wheel hub and is close to the tire, and is used for transmitting positioning signals; the QS186LE14 laser transmitter produced by the U.S. Banner Engineering International Co., Ltd. is adopted, powered by a dry battery.
[0029] The lower laser transmitter 6 is installed at a distance D vertically below the upper laser transmitter to ensure that the extension line of the connection between the upper laser transmitter and the lower laser transmitter passes through the tire rotation center for transmitting positioning signals; QS186LE14 laser transmitter produced by International Co., Ltd., powered by dry batteries.
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The invention relates to a device and a method for measuring an outer inclination angle of a vehicle tyre, which aim to determine the outer inclination angle of the vehicle tyre during running and solve the problem of difficult monitoring due to dynamic change of the outer inclination angle of the vehicle tyre. The device consists of an upper laser emitter, a lower laser emitter, a laser receiver, a step motor, a gear box and a controller. The method comprises that: a system is started from an initial position to acquire an initial outer inclination angle of the tyre when first reaching a balance position; if the outer inclination angle of the tyre is changed, the laser receiver acquires a laser beam drop point position change, and a system program calculates the drop point distance; the program determines a turning direction and a step angle of the motor according to the evaluation rule so as to change the angle of the laser receiver; and the system program returns to the laser beam drop point position change to re-perform calculation and judgment till that the laser receiver is parallel to the tyre is judged, and the program of the laser receiver is adjusted to stop so as to obtain the outer inclination angle reached by the tyre again.
Description
technical field [0001] The invention relates to the technical field of measurement, in particular to a device and a method for measuring the camber angle of a vehicle tire. Background technique [0002] With the development of electronic technology, chassis integrated control technology has become a research hotspot, and tires determine the control accuracy and overall performance of the entire system. [0003] Wheel camber refers to the angle between the center plane of the wheel and the vertical plane of the car (as shown in Figure 1). The angle is positive when the top of the wheel is tilted towards the outside of the car, and negative when it is not. The main function of the wheel camber is to make the dynamic bearing center of the wheel and the ground be reasonably distributed, which has a significant impact on the mechanical properties of the tire, and at the same time achieves the effects of improving the service life of mechanical parts and reducing tire wear. If t...
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IPC IPC(8): G01B11/26
Inventor 陈龙黄晨江浩斌王大冲
Owner JIANGSU UNIV