Energy recuperation and management in autonomous suspension systems with linear motors as actuators is presented. Current approaches to automotive active suspensions are limited by the accessible dynamics of the responses. From the point of view of limitations, the application of a linear synchronous permanent magnet motor with electronic commutation is very perspective. Linear motors usage as a new way of active suspension of mechanical vibrations improves ride comfort and handling properties of vehicles. Vehicle suspensions in which forces are generated in response to feedback signals by active elements obviously offer increased design flexibility compared to the conventional suspensions using passive elements such as springs and dampers. A special attention is focused on several interesting aspects of this non-traditional actuator controlled to obtain a variable mechanical force for a car damper. The main advantage of such a solution is the possibility to generate desired forces acting between the unsprung (wheel) and sprung (car body) masses of the car, providing good insulation of the car sprung mass from the road surface disturbances. In addition, it is shown that under certain circumstances it is possible to reduce or even eliminate the demands concerning the external power source.
Energy recuperation and management in automotive active suspension system
Energiewiederherstellung und -management in aktiven Radaufhängungen von Kraftfahrzeugen
2006
4 Seiten, 4 Bilder, 2 Quellen
Conference paper
English
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