Semi-Active Fuzzy Sliding Mode Control of Full Vehicle Model and Suspensions

Liu, Huan; Nonami, Kenzo; Hagiwara, Takahide

doi:10.1299/jsmemovic.2003.8.17

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“…SMC is known for its robustness in handling external disturbances and system modeling errors. It achieves robust control by a discontinuous control signal across the sliding surface, satisfying the sliding condition (Liu and Nonami, 2003). However, the SMC system has a particularly high control gain due to the nonlinear compensation and can suffer from the effects of actuator chattering due to the switching and imperfect implementations.…”

Section: Introductionmentioning

confidence: 99%

Semi-active Fuzzy Sliding Mode Control of Full Vehicle and Suspensions

Liu

Nonami

Hagiwara

2005

Journal of Vibration and Control

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The suspension of a vehicle is the support system between a vehicle body and wheels. The purpose of a suspension system is to support the vehicle body and increase ride comfort. Care must be taken in the design of a suspension system because if the attenuation force becomes large, the passenger will be subjected to a very rough ride under high-frequency disturbances, and if the attenuation force becomes small, the ride will feel overly soft at low frequencies. Furthermore, if the spring constant is too low, the vehicle’s natural frequency of vibration will be low, and thus the heave, rolling, and pitching will be large. In this study, a fuzzy sliding mode controller for a real vehicle has been designed. A new method for designing the fuzzy sliding mode switch hyperplane has been proposed. Experiment results are presented to confirm the effectiveness of this new algorithm.

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Section: Introductionmentioning

confidence: 99%