Device for accurately measuring vehicle wheel slip ratio

Abstract

The invention discloses a device for accurately measuring vehicle wheel slip ratio with an aim to overcome the shortcomings that an existing wheel speed measuring device and a vehicle speed sensor cannot accurately measure vehicle wheel speed and wheel hub speed and solve the problem about the lack of a device for directly measuring the vehicle wheel slip ratio. The device comprises a telescopic adjusting mechanism (1), a sensor acquisition processing unit (2), a sensor rotating component (3) and a wheel connecting component (4). The sensor rotating component (3) comprises a rotating shaft (14) and a connecting disc (15); the rotating shaft (14) and the bottom surface of the connecting disc (15) are integrally connected, the lower end of the rotating shaft (14) is rotatably connected with the bottom plate of a device shell (19) in the sensor acquisition processing unit (2), the wheel connecting component (4) is connectively mounted on the connecting disc (15) in a threaded manner, and the right end of a screw D (13) in the telescopic adjusting mechanism (1) is connected with the left side of the device shell (19) in the sensor acquisition processing unit (2) in a welded manner.

Description

technical field [0001] The invention relates to a measuring device belonging to the technical field of automobile driving parameter testing. Specifically, the invention relates to a device for accurately measuring the slip ratio of automobile wheels. Background technique [0002] The wheel slip rate refers to the degree of deviation of the wheel from the pure slip state, the wheel slip rate s=(v-wr) / v×100%, v represents the wheel center speed (m / s), ω represents the wheel angular velocity ( rad / s), r represents the rolling radius of the wheel (m). Wheel slip rate is a key parameter of automobile braking control and stability control, and an important indicator for evaluating braking control and stability control. It is widely used in automobile active safety technology. For example, the anti-lock braking device ABS The slip rate is maintained in the range of 15%-20% to improve the directional stability and steering ability of the car, so the accurate measurement of the slip...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to aim at the technical defects that the wheel speed measurement device in the prior art measures the wheel wheel speed and the vehicle speed sensor measures the wheel center speed is inaccurate and there is no device for directly measuring the slip rate in the automotive field, and provides an accurate Device for Measuring Automobile Wheel Slip Rate

Contents of the invention

[0005] The technical problem to be solved by the present invention is to overcome the problem that the wheel speed measurement device in the prior art measures the wheel speed and the vehicle speed sensor measures the wheel center speed is inaccurate and there is no direct measurement of the vehicle wheel slip rate device in the automotive field, providing A Device for Accurately Measuring the Slip Rate of Automobile Wheels

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