内置电磁阀式半主动悬架自适应反演控制

针对内置电磁阀式半主动悬架系统的非线性和簧载质量不确定性问题,设计了一种内置电磁阀式半主动悬架自适应反演控制算法.建立了内置电磁阀式减振器的数学模型和AMESim模型,并通过台架试验验证了该模型的正确性;基于该AMESim模型和1/4车半主动悬架动力学模型,设计了自适应反演控制算法,仿真分析了该控制算法下的不同簧载质量...

Adaptive backstepping control of semi-active suspension with built-in solenoid valve

Here,aiming at nonlinearity and sprung mass uncertainty of semi-active suspension system with built-in solenoid valve,an adaptive backstepping control algorithm for semi-active suspension with built-in solenoid valve was designed.The mathematical model and AMESim model of a vibration reduction device with built-in solenoid valve were established,and the correctness of the model was verified with bench tests.Based on this AMESim model and the dynamic model of 1/4 vehicle semi-active suspension,an adaptive inversion control algorithm was designed.Dynamic responses and adaptive situation of 1/4 vehicle semi-active suspension with different sprung masses were simulated and analyzed using the designed control algorithm.The results showed that under random excitation,compared with passive suspension,when sprung masses of 1/4 vehicle semi-active suspension are 260 kg and 300 kg,respectively,sprung mass accelerations of this suspension obtained using the designed control algorithm reduce by 32.4%and 26.3%,respectively,its dynamic deflections reduce by 29.3%and 24.1%,respectively;this suspension has good vibration reduction performance to verify the effectiveness and stability of the designed control algorithm.