The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2012
Filed:
Aug. 30, 2010
Gang Wang, Bethesda, MD (US);
Norman Wereley, Potomac, MD (US);
Gregory Hiemenz, Silver Spring, MD (US);
Young-tai Choi, Laurel, MD (US);
Gang Wang, Bethesda, MD (US);
Norman Wereley, Potomac, MD (US);
Gregory Hiemenz, Silver Spring, MD (US);
Young-Tai Choi, Laurel, MD (US);
Techno-Sciences, Inc., Calverton, MD (US);
University of Maryland, College Park, MD (US);
Abstract
A Constant Force Control methodology and system utilizing integrated sensors and unique control algorithms to determine required applied force to mitigate shock events in an adaptive energy absorption system, typically comprising of a spring and an adjustable energy absorber or damper element. By utilizing an expected acceleration profile and event duration for an anticipated shock event an acceleration amplitude can be determined from a measure impact velocity. From this and a measured payload mass a system controller can determine the force necessary to be applied by the energy absorber in order to stop the payload over the full desired length of the available energy absorber stroke in order to minimize the forces experienced by the payload.