A new robust adaptive controller for vibration control of active engine mount subjected to large uncertainties

作者：Fakhari Vahid^*; Choi Seung Bok; Cho Chang Hyun

来源：Smart Materials and Structures, 2015, 24(4): 045044.

DOI：10.1088/0964-1726/24/4/045044

• robust control
• active engine mount
• vibration control
• model uncertainties

This work presents a new robust model reference adaptive control (MRAC) for vibration control caused from vehicle engine using an electromagnetic type of active engine mount. Vibration isolation performances of the active mount associated with the robust controller are evaluated in the presence of large uncertainties. As a first step, an active mount with linear solenoid actuator is prepared and its dynamic model is identified via experimental test. Subsequently, a new robust MRAC based on the gradient method with sigma-modification is designed by selecting a proper reference model. In designing the robust adaptive control, structured (parametric) uncertainties in the stiffness of the passive part of the mount and in damping ratio of the active part of the mount are considered to investigate the robustness of the proposed controller. Experimental and simulation results are presented to evaluate performance focusing on the robustness behavior of the controller in the face of large uncertainties. The obtained results show that the proposed controller can sufficiently provide the robust vibration control performance even in the presence of large uncertainties showing an effective vibration isolation.

• 出版日期2015-4