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:
Apr. 01, 2025
Filed:
Sep. 18, 2019
Hitachi Astemo, Ltd., Ibaraki, JP;
Ryusuke Hirao, Kamagaya, JP;
HITACHI ASTEMO, LTD., Ibaraki, JP;
Abstract
A controller executes full extension suppression control or full compression suppression control of adjusting a damping force to be large when a piston being displaced through sliding in an inner tube approaches a full extension position or a full compression position. Moreover, a stroke from a neutral position of the piston in the inner tube to a full compression control start position is set so as to be longer than a stroke from the neutral position of the piston to a full extension control start position. A portion between the full extension control start position to the full compression control start position is set to a dead zone in which none of the full extension suppression control and the full compression suppression control are executed.