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. 16, 1999
Filed:
Oct. 31, 1997
Byung-Hak Kwak, Kyungki-Do, KR;
Jung-Soo Shim, Kyungki-Do, KR;
Mando Machinery Corporation, Kyungki-Do, KR;
Abstract
A system and method of controlling a semiactive suspension is disclosed. The system and method effectively selects appropriate damping force curves for the dampers of the four wheels in accordance with both an output vertical acceleration signals from three vertical acceleration sensors installed on the dampers of three wheels and an output axle acceleration signal from an axle acceleration sensor installed on the axle. At the resonance frequency band of a car body, the system and method controls the suspension according to the vertical speeds and ride values, calculated from the vertical acceleration signals, thus reducing the uncomfortable riding effects of the vehicle. Meanwhile, at the resonance frequency band of the axle, the system and method controls the suspension with a higher damping force thus securing steering safety of the vehicle.