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:
Oct. 21, 2003
Filed:
Apr. 03, 2002
Yutaka Tamagawa, Wako, JP;
Takuya Shirasaka, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A corrected torque command value P_TRQ which is produced by correcting a torque command value TRQ with a torque command correcting unit is substantially proportional to the armature current of an electric motor. Using the corrected torque command value P_TRQ and its average value P_ATRQ, an inferred temperature change &Dgr;tf of the electric motor is determined in each predetermined cycle time. The inferred temperature change &Dgr;tf calculated in a fuzzy inference operation, for example. The inferred temperature change &Dgr;tf is integrated by an integrating unit to determine an accumulated temperature change &Dgr;Tf. The output of the electric motor is limited when the accumulated temperature change &Dgr;Tf exceeds a predetermined value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile