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. 04, 2019
Filed:
Mar. 23, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Ryota Arakawa, Miyoshi, JP;
Shinichiro Minegishi, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
When a vehicle is traveling in a state in which an abnormality has occurred in a second resolver, a PWM control unit periodically calculates an estimated electrical angle value of a second motor generator and generates a control command for an inverter using the estimated electrical angle value. The estimated electrical angle value in each cycle can be calculated by correcting an electrical angle estimation error with respect to a sum of an estimated rotation angle change value between cycles and an estimated electrical angle value in a previous cycle. The PWM control unit generates the control command for the inverter such that an output of the inverter is a constant potential while an absolute value of the electrical angle estimation error is greater than a predetermined value during traveling of the vehicle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile