Control of an Active Vehicle Suspension Using Electromagnetic Motor

  • Kim, Woo-Sub (Department of Automotive Engineering, Kookmin University) ;
  • Lee, Woon-Sung (Department of Automotive Engineering, Kookmin University) ;
  • Kim, Jung-Ha (Department of Automotive Engineering, Kookmin University)
  • Published : 2003.10.22

Abstract

Two criteria of good vehicle suspension performance are typically their ability to provide good road handling and increased passenger comfort. So far, The existing active vehicle suspension uses pneumatic and hydraulic actuators that enhance road handling and passenger comfort. But these kinds of actuators have nonlinear characteristic less than an electromagnetic motor. In this research, we are trying to examine the feasibility and the experiment of an active vehicle suspension using electromagnetic motor in order to enhance the ride quality because existing active vehicle suspension using active power sources such as compressors, hydraulic pumps has nonlinear characteristic. Active vehicle suspension using electromagnetic motor will have the ability to behave differently on smooth and rough roads. The desired response should be soft in order to enhance ride comfort, but when the road surface is too rough the suspension should stiffen up to avoid hitting its limits.

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