Active and Regenerative Control of Electrodynamic Vibration Damper

1995 ◽  
Author(s):  
Yohji Okada ◽  
Hideyuki Harada
Keyword(s):  
Electric Power ◽  
Active Control ◽  
Control Algorithm ◽  
Vibration Damping ◽  
Vibration Energy ◽  
Vehicle Suspension ◽  
Vibration Damper ◽  
Experimental Apparatus ◽  
Vehicle Suspension System ◽  
Electrodynamic Vibration

Abstract A new method of regenerating electric power from the vibration energy is presented. An electro-dynamic actuator is controlled by a relay controller to regenerate electric power during the highspeed motion of the actuator. For the lowspeed motion, an active control algorithm is applied to the same actuator to achieve good damping performance. This idea can be applied to a vehicle suspension system which is composed of electrodynamic actuator and spring. The system is simulated on a computer to evaluate the vibration damping property and energy regenerative capability. A simple experimental apparatus is made to confirm its capability.

scholarly journals MR damper and its application for semi-active control of vehicle suspension system

Mechatronics ◽  
2002 ◽  
Vol 12 (7) ◽  
pp. 963-973 ◽  
Author(s):  
G.Z. Yao ◽  
F.F. Yap ◽  
G. Chen ◽  
W.H. Li ◽  
S.H. Yeo
Keyword(s):  
Active Control ◽  
Mr Damper ◽  
Suspension System ◽  
Vehicle Suspension ◽  
Vehicle Suspension System

Active Control of Vehicle Air Cushion Suspensions

1972 ◽  
Vol 94 (1) ◽  
pp. 41-49 ◽  
Author(s):  
D. A. Hullender ◽  
D. N. Wormley ◽  
H. H. Richardson
Keyword(s):  
Active Control ◽  
Vehicle Suspension ◽  
Small Scale ◽  
Stroke Length ◽  
Comfort Index ◽  
Air Cushion ◽  
Flexible Base ◽  
Gap Height ◽  
Vehicle Suspension System ◽  
System Coupling

A primitive vehicle suspension system coupling a simple vehicle model to a guideway having random irregularities is defined. The optimum linear suspension which minimizes a linear combination of vehicle heave acceleration (a passenger comfort index) and suspension-guideway displacement (a measure of required suspension stroke length) is synthesized using a Wiener- Ho¨pf technique. This optimum suspension, which is independent of specific mechanical, magnetic, or fluid methods of implementation, is used to determine the form of active control required to make the performance of a flexible-skirted air cushion suspension approach the optimum performance. The optimally compensated suspension acceleration, flexible base, and gap height excursions are computed and compared with those of optimum passive suspensions. A reduction in acceleration by a factor of 2.7 is possible with optimum active control. Finally, the limitations and constraints in implementing both optimum and suboptimum control of an air cushion suspension were studied using a small scale experimental suspension.

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