半主动连通式油气悬架精确反馈线性化控制

利用微分几何法将连通式油气悬架非线性系统模型精确线性化，建立了半主动连通式油气悬架精确反馈线性化控制系统，利用AMESim和MATLAB/Simulink对半主动连通式油气悬架进行了联合仿真。仿真结果表明，半主动连通式油气悬架与被动悬架相比，较好地改善了上车的振动性能，缩短了连通式油气悬架在受冲击作用时的稳定时间，减小了悬架上车的瞬时冲击的最大值，提高了悬架的减振能力和抗侧倾能力。半主动连通式油气悬架改善了悬架动挠度，使悬架动挠度过渡平缓，降低了瞬时波动强度。

Exact Linearization and Feedback Control of Semi-activeConnected Hydro-pneumatic Suspension

Based on differential geometry theory, the nonlinear system was transformed to a linear one, and the linear feedback control system of semi-active connected hydro-pneumatic suspension was done. With the software AMESim and MATLAB/Simulink, the co-simulation model of semi-active connected hydro-pneumatic suspension was completed. The simulation results show that the semi-active connected hydro-pneumatic suspension improves the property of upper vehicle, which decreases the stable time of instantaneous impact and the maximum values of instantaneous impact and enhances the ability of vibration damping and overturning resistance. Moreover, it improves suspension dynamic flexibility, which makes the suspension vibrate more smoothly and reduces the instantaneous vibration intensity.