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:
Jun. 08, 2021
Filed:
Mar. 16, 2017
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Toshiro Yoda, Higashimatsuyama, JP;
Takuya Ishihara, Kumagaya, JP;
KNORR-BREMSE STEERING SYSTEM JAPAN LTD., Saitama, JP;
Abstract
Provided is an actuator for a steering system, which can be increased in degree of freedom for design change, regardless of a configuration change of a hydraulic power steering side. The actuator for a steering system comprises a transmission mechanism configured to transmit the rotation of a steering shaft to a steered wheel, a piston disposed in the transmission mechanism, and a pair of pressure chambers configured to generate a force acting to move the piston. The actuator for a steering system is disposed between a hydraulic power steering system, which imparts a steering force to the steered wheel along with the movement of the piston, and a steering wheel. The actuator for a steering system includes an input shaft which is rotatably and axially supported by the housing and disposed in the steering wheel side; an output shaft which is rotatably and axially supported by the housing and disposed in the hydraulic power steering system; a torsion bar connecting the input shaft and the output shaft; a motor rotor disposed around the outer periphery of the output shaft within the housing and configured to rotate integrally with the output shaft; a motor stator disposed around the outer periphery of the motor rotor within the housing; and a rotation angle detecting section disposed within the housing and configured to detect the rotation angles of the input and output shafts or a relative angle of the input and output shafts.