Automobile sideslip detector and method for detecting sideslip

Abstract

The invention discloses an automobile sideslip detector and a method for detecting sideslip. The automobile sideslip detector consists of a mechanical part and an electric part, wherein chain wheels of the mechanical part are fixed on a chain wheel shaft, and a plane link plate and two chain wheels form chain drive connection; a base plate is arranged on a sliding plate, the sliding plate is connected with a plate type linear guide rail through a ball bearing, and the sliding plate can reciprocate on the plate type guide rail transversely; a left-shift sensor and a right-shift sensor of the electric part are connected with an amplifier respectively, and the amplifier is connected with a microprocessor through an A/D converter; a rotary encoder is connected with the microprocessor through a counting circuit; and a rotating shaft of the rotary encoder and the chain wheel shaft are arranged coaxially, and the fixed parts of the left-shift sensor and the right-shift sensor are arranged on the plate type linear guide rail. The sideslip detector amplifies the detection running distance X of a detected automobile so that the detection is more accurate, and can measure sideslip values at different speeds and different loads for accurately matching suspension fork positional parameters of a front steering wheel.

Description

technical field [0001] The invention relates to a side slip detector, in particular to an automobile side slip detector and a side slip detection method. Background technique [0002] When designing a car, most of the steering wheels are provided with a very small camber angle. The purpose is not only to compensate the elasticity of the independent suspension (or the elasticity of the front axle) and the clearance of the kingpin, but also to adapt to the lateral camber of the road surface. The distance between the point where the pin axis penetrates and the center of the tire footprint improves the steering stability and portability of the car during braking and driving. However, this often-existing roll angle will cause the left and right wheels to act on the lateral force corresponding to the roll angle in the opposite direction, which will increase tire wear and cause eccentric wear of the tire and generate additional power consumption. To avoid this situation, a certain...

AI Technical Summary

Problems solved by technology

[0016] (5) The impact of other technical conditions of the car: the clearance of the car wheel, axle and suspension will also affect the detection result of the side slip

For example, the wear of the rubber sleeve of the kingpin of the automobile will cause the position of the kingpin in the rubber sleeve to change randomly during each test, resulting in a relatively prominent dispersion of the sideslip detection results.

[0017] To sum up, the large error, inaccuracy, and poor repeatability are caused by the structure of the skateboard type sideslip meter itself. Simulated measurement of sideslip on a skateboard

Although many new technologies and methods for improving the skateboard dynamic test bench have been adopted at home and abroad, none of them can dynamically simulate the influence of the speed and load on the dynamic sideslip of the vehicle during straight-line driving.

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