Shock absorber system
US9506521B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2015 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | May 20, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2230/18
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A shock absorber system, including: a hydraulic shock absorber configured to generate a damping force with respect to a relative movement of a sprung portion and an unsprung portion; a damping-force changer configured to change the damping force; and a controller configured to determine a damping-force index and to control the damping-force changer, wherein the controller is configured to determine, as the index, a required application force to be applied to the sprung portion for damping its movement in an up-down direction, according to a determination rule in which the required application force has the same direction as a direction of a speed of the sprung portion in the up-down direction when the sprung speed is relatively small and acceleration of the sprung portion in the up-down direction is relatively large in a situation in which the direction of the speed and a direction of the acceleration are mutually different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.