考虑作动器动力学的半车主动互联悬架抗侧倾控制研究

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (12) : 150-154.

论文

吴晓建，周兵，文桂林

作者信息 +

A study on anti-roll control of half-car model active interconnected suspension with consideration of actuator dynamics

Wu Xiaojian,Zhou Bing, Wen Guilin

Author information +

文章历史 +

摘要

为提高车辆的侧倾稳定性及抗侧翻能力，开展了考虑液压作动器动力学特性的主动互联悬架控制研究。首先建立了主动液压互联悬架动力学模型及液体连续方程，然后以车身侧倾角为控制目标，采用backstepping非线性控制方法完成了抗侧倾控制器设计及其稳定性分析，通过构造控制目标跟踪函数使控制系统平稳过渡并追踪期望的侧倾角度。角阶跃转向工况抗侧倾模拟分析表明：所设计的控制系统能使车身侧倾角跟踪期望的角度值，有效控制车身侧倾姿态，降低载荷转移率，提高抗侧倾性能及侧翻极限，同时，主动互联抗侧倾控制还能有效改善悬架动挠度及车轮动载，综合提升车辆性能。

Abstract

For the purpose of improving the vehicle roll stability and anti-rollover capability，a nonlinear control method for antiroll active hydraulically interconnected suspension (HIS) is developed with consideration of actuator dynamics. Firstly，the dynamics model and the liquid continuity equations of HIS are established, the nonlinear controller which is aimed at alleviating the roll angle therefore to improve the antiroll performance is completed based backstepping algorithm. Then，an objective function is constructed in order to ensure a smooth transition and desired-fixed value tracking for roll angle. Finally ,a simulation is carried out on the condition of step steering to validated the effectiveness of the control system, the result shows that the method succeeds in controlling body rolling posture and decreasing the load transfer ratio, and thus improves the antiroll performance and rollover limit, moreover, antiroll active HIS control system can also effectively enhance the suspension deflection and wheel load holding performance.

导出引用

吴晓建，周兵，文桂林. 考虑作动器动力学的半车主动互联悬架抗侧倾控制研究[J]. 振动与冲击, 2017, 36(12): 150-154

Wu Xiaojian,Zhou Bing, Wen Guilin. A study on anti-roll control of half-car model active interconnected suspension with consideration of actuator dynamics[J]. Journal of Vibration and Shock, 2017, 36(12): 150-154

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