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Automotive seat vibration control via hydraulic semiactive vibration absorbers (SAVA) |
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| Authors: | Changki Mo Myoungho Sunwoo W. N. Patten |
| Affiliation: | (1) Dept. of Automotive Engineering Sangju, National University, 386 Gajang-Dong Sangju, 742-711 Kyungbuk, Korea;(2) Dept. of Automotive Engineering Hanyang, Univeristy 17 Haengdang Dong, 133-791 Sungdong-Ku Seoul, Korea;(3) School of Aerospace and mechanical Engineering, University of Oklahoma, 865 Asp Ave. Rm 212, 73019 Norman, OK, USA |
| Abstract: | The paper examines the ride performance enhancement that can be obtained by applying hydraulic semiactive vibration absorbers (SAVA) to alter the compliance characteristics of the seat/wheel suspension system. The work relies on a consistent model of the (nonlinear) hydraulics of the SAVA. A recently developed Lyapunov control scheme is used for regulation. The performance is examined assuming a quarter car with a seat/seat mounted mass. The paper then employs a quarter car/seat with a two mass ISO model of the seated human. Two road conditions are employed in the simulations; a ride swell and a road surface with a white noise velocity profile. The results show 45% reduction of of the vertical acceleration. |
| Keywords: | Semiactive Vibration Absorber Ride Comfort Modeling Lyapunov Control |
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