Steering and roll device of vehicle and roll control method

Abstract

The invention relates to the technical field of vehicle chassis, and discloses a steering and roll device of a vehicle and a roll control method. The steering and roll device of the vehicle is composed of a roll mechanism and a steering mechanism, a certain angle is formed between the left and right steering arms and the left and right knuckles, which are fixedly connected with each other, the twomechanisms share the body and the main shafts of the left and right steering knuckles. The small left steering arm and the large left steering arm rotate relative to the axis of each arm self-adaptively. The small right steering arm and the large right steering arm rotate relative to the axis of each arm, the independent control of the vehicle steering and body roll can be achieved, steering androll, independent roll or independent steering can be achieved during the driving process of the vehicle. The wheelbase of vehicle does not change. The vehicle body rolls when the method is applied tothe steering of the vehicle, so that the vehicle automatically rolls at a certain angle to resist centrifugal force or overturning force when steering or driving on an inclined road, so as to maintain a stable driving attitude.

Description

technical field [0001] The invention relates to a vehicle steering roll device and a roll control method, belonging to the technical field of vehicle chassis, in particular to the technical category of vehicle steering under the condition of vehicle body roll. Background technique [0002] The active roll control system improves the steering stability, smoothness, passing speed and safety of the vehicle when turning by controlling the vehicle's inclination to the inside of the turn; When the road surface is tilted, it automatically tilts at a certain angle to resist the centrifugal force and maintain a stable driving posture. The body roll is usually implemented in two ways: the independent roll of the body, and the linkage roll of the body and wheels. The steering movement of the vehicle is carried out independently without interfering with each other, and any steering mechanism can be used, but the handling stability and ride comfort of the vehicle are slightly worse when ...

AI Technical Summary

Problems solved by technology

[0002] The active roll control system improves the steering stability, smoothness, passing speed and safety of the vehicle when turning by controlling the vehicle's inclination to the inside of the turn; When the road surface is tilted, it automatically tilts at a certain angle to resist the centrifugal force and maintain a stable driving posture. The body roll is usually implemented in two ways: the independent roll of the body, and the linkage roll of the body and wheels. The steering movement of the vehicle is carried out independently without interfering with each other, and any steering mechanism can be used, but the handling stability and ride comfort of the vehicle are slightly worse when turning; the latter is the linkage roll method of the body and wheels, and the body roll and the vehicle steering movement affect each other , the handling stability, smoothness and safety of the vehicle are better when turning, but it needs to adopt two-wheel independent steering or four-wheel independent steering technology, adopt hydraulic drive, servo control steering wheels or servo motor drive, control steering wheels to meet the requirements of Ak However, the isosceles trapezoidal steering mechanism with simple structure and reliable operation does not meet the steering technical requirements under vehicle steering and roll conditions, and cannot be directly applied.

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