• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.5
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• pp.950-955
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• 2006

This paper prosed modelling and design method in suspension system sesign to analyze sky hook damper system by adopting active suspension control theory. Recent in the field of suspension system design it is general to adopt active control scheme for stiffness and damping, and connection with other vehicle stability control equipment is also intricate, it is required for control system scheme to design more robust, higher response and precision control equipment. It is hon that sky hook suspension system is better than passive spring-damper system in designing suspension equipment. We analyze location of damper in sky hook system and its motion equation then design robust control system. Numerical example is shown for validity of robust control system design in active sky hook suspension system.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.05a
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• pp.182-182
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• 2004

기술의 발달과 생활환경의 고급화로 인해서 자동차 탑승자의 주행 안락감에 대한 욕구와 기대감이 높아지고 있어 자동차를 개발하는 데 중요한 요소가 되었다. Karnopp외 2인에 의해 제안된 스카이훅(sky-hook) 현가이론은 능동/반능동 현가장치와 관련하여 잘 알려진 제어알고리즘으로 노면의 외란에 의한 차체의 수직가속도를 줄이기 위해서 가상적인 기준면을 공증에 설정하고 차체와 가상의 기준면 사이에 감쇠기론 설치하는 개념이다. 기존의 스카이훅 현가이론을 비롯한 일반적인 제어에서는 고주파 성분의 제어 상태 파라미터들로 인하여 발생한 과도한 제어입력과 그에 따르는 제어의 비효율성이 존재하고 있다.(중략)

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.6
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• pp.1147-1152
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• 2006

This paper proposed modelling and design method in suspension system design to analyze sky hook damper system by adopting active robust control theory. Recent in the field of suspension system design it is general to adopt active control scheme for stiffness and damping, and connection with other vehicle stability control equipment is also intricate, it is required for control system scheme to design more robust, higher response and precision control equipment. It is known that sky hook suspension system is better than passive spring-damper system in designing suspension equipment. We analyze location of sensor and actuator in sky hook system and its motion equation, then design robust control system. Numerical example is shown for validity of robust control system design in active sky hook suspension system.

• Journal of Power System Engineering
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• v.5 no.2
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• pp.87-92
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• 2001

Automotive suspension system is a mechanism for isolation of the vibration coming from the road inputs. Recently, the electronically controlled suspension systems which may improve ride and handling performance have been developed. Here, the continuously controlled semi-active suspension system is focused. As a mechanism to control damping forces continuously, a solenoid valve is used. The modeling for the solenoid valve is introduced briefly, a vehicle dynamics modeling is constructed, and then combined system model is completed. To design the efficient control algorithm for the semiactive suspension system the knowledge based fuzzy logic is applied and the technique how to apply the sky-hook theory to the fuzzy logic is developed. Finally, to confirm the improvement of performance the computer simulation is carried out.