Active Electromagnetic Suspension System
IEEE Vehicle Power and Propulsion Conference (VPPC), September 3-5, 2008, Harbin, China
Active Electromagnetic Suspension System for Improved Vehicle Dynamics
Bart L.J. Gysen, Johannes J.H. Paulides, Jeroen L.G. Janssen, and Elena A. Lomonova
Eindhoven University of Technology, The Netherlands. Email: B.L.J.Gysen@tue.nl
Abstract—This paper offers motivations for an active suspension system which provides for both additional stability and maneuverability by performing active roll and pitch control during cornering and braking as well as eliminating road irregularities, hence increasing both vehicle and passenger safety and drive comfort. Various technologies are compared to the proposed electromagnetic suspension system which uses a tubular permanent magnet (PM) actuator together with a passive spring. Based upon on-road measurements and results from the literature, several specifications for the design of an electromagnetic suspension system are derived. The measured on-road movement of the passive suspension system is reproduced by electromagnetic actuation on a quarter car setup proving the dynamic capabilities of an electromagnetic suspension system. Keywords—Active Suspension; Permanent Magnet; Tubular Actuator
Figure 1. (a) Conventional passive suspension system, (b) electromagnetic suspension system
I. INTRODUCTION Advanced electro-mechanical and electronic systems are increasingly installed to influence the dynamic performance of the vehicle, for example antilock braking systems (ABS), electronic break force distribution (EBD), electronic stability program (ESP), etc. These systems are installed to improve vehicle handling and passenger safety, since this becomes an ever increasing demand for the automotive industry especially when cars tend to become smaller (SMART), incorporate a higher center of gravity (SUV) and reduced footprint. For instance, the transportation research board [1], reported that 51 % of the serious car accidents are caused
Active Electromagnetic Suspension System for Improved Vehicle Dynamics
Bart L.J. Gysen, Johannes J.H. Paulides, Jeroen L.G. Janssen, and Elena A. Lomonova
Eindhoven University of Technology, The Netherlands. Email: B.L.J.Gysen@tue.nl
Abstract—This paper offers motivations for an active suspension system which provides for both additional stability and maneuverability by performing active roll and pitch control during cornering and braking as well as eliminating road irregularities, hence increasing both vehicle and passenger safety and drive comfort. Various technologies are compared to the proposed electromagnetic suspension system which uses a tubular permanent magnet (PM) actuator together with a passive spring. Based upon on-road measurements and results from the literature, several specifications for the design of an electromagnetic suspension system are derived. The measured on-road movement of the passive suspension system is reproduced by electromagnetic actuation on a quarter car setup proving the dynamic capabilities of an electromagnetic suspension system. Keywords—Active Suspension; Permanent Magnet; Tubular Actuator
Figure 1. (a) Conventional passive suspension system, (b) electromagnetic suspension system
I. INTRODUCTION Advanced electro-mechanical and electronic systems are increasingly installed to influence the dynamic performance of the vehicle, for example antilock braking systems (ABS), electronic break force distribution (EBD), electronic stability program (ESP), etc. These systems are installed to improve vehicle handling and passenger safety, since this becomes an ever increasing demand for the automotive industry especially when cars tend to become smaller (SMART), incorporate a higher center of gravity (SUV) and reduced footprint. For instance, the transportation research board [1], reported that 51 % of the serious car accidents are caused
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