Development of the Semi-Active Controlled Variable Damper System for Passenger Vehicles

승용차용 반능동형 가변댐퍼 시스템의 개발

  • 허승진 (국민대학교 기계·자동차공학부) ;
  • 심정수 (만도기계 중앙연구소) ;
  • 황성호 (한국생산기술연구원)
  • Published : 1998.08.01


A control algorithm for multi-stage dampers is developed based on the mode skyhook control concept, and implemented on the full vehicle system environment. The test vehicle system is equipped with the real time controller, four-stage variable dampers and sensors. The real time controller is developed using a digital signal processor(DSP), digital I/O, A/D and D/A converters. The dampers are driven by the electromagnetic actuators of less than 20 msec response time. The sensors include accelerometers, relative displacement transducers, and steering wheel rate sensors, etc. Through a series of tests in laboratory and proving ground, the performance of the semi-active suspension system is evaluated and it is shown that the vehicle dynamic characteristics is improved with the developed damping system. Futhermore, the parameter tuning methods to enhance vehicle dynamic performance are propsoed.


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