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针对1/2车4自由度汽车震动模型和磁流变阻尼器力学简化模型,提出了汽车半主动悬架系统的自适应Backstepping控制器设计方法。该方法所设计的控制器能自动调节控制器参数,以适应汽车悬架系统中某些参数在一定范围内的变化。仿真结果表明,与被动悬架相比,所设计的控制器不仅增加了悬架系统的快速稳定性,而且汽车的平顺性也得到了明显改善。
Aimed at the 1/4-car 4-DOF vehicle vibration model and the magnetorheological damper mechanical simplified model, an adaptive Backstepping controller design method for semi-active suspension system was proposed. The controller designed by this method can automatically adjust the parameters of the controller to adapt to the changes of certain parameters of the automotive suspension system within a certain range. The simulation results show that compared with the passive suspension, the designed controller not only increases the stability of the suspension system, but also improves the ride comfort of the vehicle.