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:
Dec. 13, 2022
Filed:
Jun. 19, 2020
Denso Corporation, Kariya, JP;
Yosuke Tanaka, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An instruction duty computation unit computes an instruction duty ratio representing a ratio between an energization time and a non-energization time of a motor based on an actual rotation angle detected by a rotation angle sensor and a target rotation angle of a valve member. The rotation angle sensor detects an actual rotation angle of a valve member of a fluid control valve. A stress computation unit computes a valve member load torque of the valve member based on the actual rotation angle and an actual duty ratio of the motor. An actual duty computation unit computes a new value of the actual duty ratio based on an instruction duty ratio computed by using an instruction duty computation unit and a valve member load torque computed by using a stress computation unit.