Vehicle seat suspension is one of the most effective ways to reduce vibration transmitted to driver body,in particular,for heavy duty vehicles which are often operated in harsh conditions.Most of the currently propose...Vehicle seat suspension is one of the most effective ways to reduce vibration transmitted to driver body,in particular,for heavy duty vehicles which are often operated in harsh conditions.Most of the currently proposed active and semi-active seat suspensions use linear actuators to provide the required forces to reduce vibration,however,the cost is high and the structure is complex.In this talk,the active and semi-active seat suspensions with rotary actuators are introduced to overcome the above mentioned problems.For the active seat suspension,different robust control strategies as well as friction estimation and compensation algorithms are developed and implemented.For the semi-active seat suspension,both rotary magnetorheological fluid damper based and rotary electromagnetic damper based schemes are developed,where the controllable electromagnetic damper based scheme has energy harvesting capability such that the energy consumption of the system can be further reduced.All the proposed schemes are experimentally validated.The experimental results show that the proposed seat suspensions are very practical for real applications due to their low cost,simple structure,and high effectiveness.展开更多
文摘Vehicle seat suspension is one of the most effective ways to reduce vibration transmitted to driver body,in particular,for heavy duty vehicles which are often operated in harsh conditions.Most of the currently proposed active and semi-active seat suspensions use linear actuators to provide the required forces to reduce vibration,however,the cost is high and the structure is complex.In this talk,the active and semi-active seat suspensions with rotary actuators are introduced to overcome the above mentioned problems.For the active seat suspension,different robust control strategies as well as friction estimation and compensation algorithms are developed and implemented.For the semi-active seat suspension,both rotary magnetorheological fluid damper based and rotary electromagnetic damper based schemes are developed,where the controllable electromagnetic damper based scheme has energy harvesting capability such that the energy consumption of the system can be further reduced.All the proposed schemes are experimentally validated.The experimental results show that the proposed seat suspensions are very practical for real applications due to their low cost,simple structure,and high effectiveness.
