Electro magnetic suspension
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IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 59, NO. 3, MARCH 2010
Active Electromagnetic Suspension System for
Improved Vehicle Dynamics
Bart L. J. Gysen, Member, IEEE, Johannes J. H. Paulides, Member, IEEE,
Jeroen L. G. Janssen, Member, IEEE, and Elena A. Lomonova, Fellow, IEEE
Abstract—This paper offers motivations for an electromagnetic active suspension system that provides 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 with the proposed electromagnetic suspension system that uses a tubular permanent-magnet actuator (TPMA) with a passive spring. Based on 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.
Index Terms—Active suspension, permanent magnet (PM), tubular actuator.
I. I NTRODUCTION
A
DVANCED electromechanical and electronic systems are used to influence the dynamic performance of the vehicle, for example, antilock braking systems, electronic break force distribution, electronic stability program, etc. These systems improve vehicle handling and passenger safety, since this becomes an ever-increasing demand for the automotive industry, particularly when cars tend to become smaller (SMART) and incorporate a higher center of gravity (sport utility vehicle) and a reduced footprint. For instance, the Transportation Research
Board [1] reported that 51% of serious car accidents are caused by rollover. Another trend in the automotive industry is the
“more electric car,” e.g., the Toyota Prius. These
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 59, NO. 3, MARCH 2010
Active Electromagnetic Suspension System for
Improved Vehicle Dynamics
Bart L. J. Gysen, Member, IEEE, Johannes J. H. Paulides, Member, IEEE,
Jeroen L. G. Janssen, Member, IEEE, and Elena A. Lomonova, Fellow, IEEE
Abstract—This paper offers motivations for an electromagnetic active suspension system that provides 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 with the proposed electromagnetic suspension system that uses a tubular permanent-magnet actuator (TPMA) with a passive spring. Based on 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.
Index Terms—Active suspension, permanent magnet (PM), tubular actuator.
I. I NTRODUCTION
A
DVANCED electromechanical and electronic systems are used to influence the dynamic performance of the vehicle, for example, antilock braking systems, electronic break force distribution, electronic stability program, etc. These systems improve vehicle handling and passenger safety, since this becomes an ever-increasing demand for the automotive industry, particularly when cars tend to become smaller (SMART) and incorporate a higher center of gravity (sport utility vehicle) and a reduced footprint. For instance, the Transportation Research
Board [1] reported that 51% of serious car accidents are caused by rollover. Another trend in the automotive industry is the
“more electric car,” e.g., the Toyota Prius. These