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:
Aug. 14, 2012
Filed:
Feb. 24, 2009
Hidenori Kajino, Nagoya, JP;
Hidenori Kajino, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A suspension system for a vehicle, including: (a) a suspension spring; (b) a hydraulic damper; (c) a displacement force generator disposed in parallel with the suspension spring and the damper; and (d) a controller including a damping-force controlling portion for controlling a damping force of the damper and a displacement-force controlling portion for controlling a displacement force of the displacement force generator. The displacement-force controlling portion is configured to execute a sprung-portion vibration damping control for controlling the displacement force, such that the generated displacement force acts as a damping force against sprung-portion vibration. The damping-force controlling portion is configured, upon execution of the sprung-portion vibration damping control, to execute a damping force reducing control for reducing the damping force that is to be generated by the damper, depending on an intensity of unsprung-portion resonance frequency vibration which occurs in the vehicle and which has a resonance frequency of the unsprung portion.