Vehicle roll drive and active roll vehicle

Abstract

The invention relates to a vehicle roll drive device and an active roll vehicle, belonging to the technical field of vehicle chassis, in particular to the technical field of vehicle roll drive and control. The vehicle roll drive device is formed by a roll mechanism and a steering mechanism. The movement amount of the vehicle body is the actuating displacement u. When the actuating displacement u changes, the roll angle β changes, and the roll function β=f(u) of the relationship between the roll angle β and the actuating displacement u is obtained to realize the vehicle roll, and the linear displacement is adopted The actuator drives the vehicle's roll motion, with the actuation displacement u and the steering angle θ as the control parameters, to realize the independent control of the body roll and vehicle steering; it is applied to the roll drive and control of the active roll vehicle, so that the vehicle Or when driving on an inclined road, it will automatically tilt at a certain angle to resist centrifugal force or rollover force, so as to maintain a stable driving posture.

Description

technical field [0001] The invention relates to a vehicle roll driving device and an active roll vehicle, belonging to the technical field of vehicle chassis, in particular to the technical field of vehicle roll drive and control. Background technique [0002] The active roll control system improves the handling stability, smoothness, traffic speed and safety of the vehicle when turning by controlling the degree of inclination of the vehicle to the inner side of the turn. When crossing an inclined road, it automatically tilts at a certain angle to generate a balance moment to resist the centrifugal force or rollover force on the vehicle, so as to maintain a stable driving posture of the vehicle. [0003] Vehicle active roll technology is usually implemented in two ways: independent body roll and vehicle body and wheel linkage roll. The former independent body roll method is usually driven by an actuator through a reducer to decelerate or directly drive the body to rotate rel...

AI Technical Summary

Problems solved by technology

[0003] Vehicle active roll technology is usually implemented in two ways: independent body roll and vehicle body and wheel linkage roll. The former independent body roll method is usually driven by an actuator through a reducer to decelerate or directly drive the body to rotate relative to the frame. The structure is simple and the cost is low, but the handling stability, ride comfort and safety reliability of the vehicle during driving are poor; The tilt mechanism realizes the vehicle roll through the suspension movement, and the body roll, vehicle steering and wheel suspension movement affect each other. For high-end vehicles; exploring vehicle active roll driving methods, researching vehicle roll transmission and control methods, has theoretical significance and practical value for reducing the cost of active rolling vehicles and improving the performance of active rolling vehicles

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