Strain gauge based side slipping detection method and device

Abstract

The invention discloses a strain gauge based side slipping detection method and device. The device comprises a steel plate, an elastic induction carpet, a strain gauge array, a main control unit and a display unit, wherein the elastic induction carpet is arranged on the steel plate; the strain gauge array is arranged in the elastic induction carpet; the main control unit is used for detecting an input signal of the strain gauge array; the display unit is used for displaying an output result of the main control unit. The strain gauge array is provided with two groups of sensitive grids to eliminate influences of gravity; a transverse side slipping force and a side slipping amount are obtained by the main control unit according to changes of resistance of two groups of the sensitive grids. The total thickness of an induction part of the device is only 5mm so that the operation difficulty of constant-speed straight-line driving of a driver is greatly reduced when vehicle tires passes in a yard (factory); meanwhile, influences on a final detection result are also greatly reduced. The automatic reading, displaying and transmission of the transverse side slipping force and the side slipping amount data can be realized, and the strain gauge based side slipping detection method and device are more intelligent and more efficient.

Description

technical field [0001] The patent of the present invention relates to a vehicle sideslip detection method and device, in particular to a vehicle sideslip method and device used in a field (factory). Background technique [0002] Since the side slip detection equipment of the vehicle generally forms a complete detection system together with the four-wheel alignment, the overall equipment is bulky and not easy to carry, so the vehicle to be tested needs to be driven into a fixed location where the equipment is located. In the field of special equipment inspection, the motor vehicles in the field (factory) are scattered in various places as a special vehicle, and inspectors are required to carry equipment to carry out various safety inspections on the motor vehicles in the field (factory), including sideslip Therefore, for the device applied to the side slip detection of motor vehicles in the field (factory), it must be easy to carry. [0003] Such as figure 1 As shown, altho...

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Problems solved by technology

[0003] like figure 1 As shown, although the existing single-plate side-sliding device is relatively simple in structure and low in cost, because the equipment has a height of about 10 cm, it often needs the cooperation of a transition plate, and the complete set of devices is mainly composed of steel plates, so the weight And the convenience of carrying will be greatly reduced. In addition, after one side of the tire is placed on the test board, the axis where the overall steering wheel is located will be greatly inclined, so that the gravity will generate a component force in the lateral direction, which will eventually affect the measurement results. , so that the measured data repeatability is poor

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