No-jerk semi-active skyhook control method and apparatus

Publication Date
2000-09-05Filing Date
1999-01-04Inventor
Ahmadian, Mehdi
Southward, Steve C.
Reichert, Brian Anthony
Song, Xubin
Metadata
Show full item recordAbstract
A method of controlling a controllable force generator within a controllable suspension system interconnected between a first member M.sub.1 and a second member M.sub.2. The method includes the steps of obtaining a first signal (V.sub.abs) representative of the absolute velocity of the first member M.sub.1, obtaining a second signal (V.sub.rel) representative of the relative velocity between the first and second members, and setting a desired damping force for the generator based upon a control policy which defines a control surface. The control policy includes a preselected gain, an absolute velocity, and a shaping function of relative velocity wherein said control surface exhibits only continuous first derivatives for V.sub.rel *V.sub.abs >0 and wherein the control surface is devoid of any surface discontinuities. This control policy effectively eliminates the jerkiness in certain prior art control methods, such as skyhook.
Assignee
Lord Corporation
Virginia Tech Intellectual Properties, Inc.
Patent Number
6115658
Application Number
9225147
Primary/U.S. Class
280/5.515
Other/U.S. Class
701/37
CPC Class
B60G17/018
B60G2400/20
B60G2500/10
F16F15/02
Patent Type
utility
Collections
- Virginia Tech Patents [687]