능동 현가 장치가 차량의 핸들링에 미치는 영향에 관한 연구 = A study on the active suspension effects on a vehicle handling

다국어 초록 (Multilingual Abstract)

This paper develops a 7 DOF vehicle model to study the effects of the active suspension on ride. The model is used to derive a control law for the active suspension using a full state linear optimal control technique. A wheelbase preview type active suspension is also considered in the control law derivation. The time delay between wheelbases is approximated using Pade approximation technique. The ride model is extended to a 14 DOF handling model to include lateral, longitudinal, yaw and four wheel spin motions. A control law which is derived by considering only ride related parameters is used to study the effects of the active suspension on a vehicle handling. J-tum maneuver simulation results show that the active suspension has a slower response in lateral acceleration and yaw rate, a bigger steady state lateral acceleration and an oversteer tendency. Lane changing maneuver simulation results show that the active suspension has a little bigger lateral acceleration but a much smaller roll angle and roll motion. Braking maneuver simulation results show that the active suspension has a much smaller pitch angle and pitch motion.<br/>

목차 (Table of Contents)

• Abstract
  
• 1.서론
  
• 2.차량의 모델링
  
• 3.제어 알고리즘의 개발
  
• 4.핸들링 해석을 위한 차량 모델
  
• 5.컴퓨터 모의실험
  
• 6.결론
  
• 7.참고문헌