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:
Jul. 06, 2021
Filed:
Dec. 01, 2017
Nissan Motor Co., Ltd., Kanagawa, JP;
Sho Ohno, Kanagawa, JP;
Hiromichi Kawamura, Kanagawa, JP;
Nissan Motor Co., Ltd., Kanagawa, JP;
Abstract
A control device includes an inverter, a sensor, a controller, and a filter. The inverter supplies power to an electric motor based on a control on the electric motor. The sensor detects a current supplied from the inverter to the electric motor. The controller executes current vector control by calculating a feedback command value and a feedforward compensation value based on a torque command value, the feedback command value being indicative of a voltage value for decreasing deviation in a supply current to the electric motor, the feedforward compensation value being a value for compensating the feedback command value. The filter performs a filtering process on the feedback command value to pass a low-frequency component of the feedback command value. When the control is switched to voltage phase control, the controller initializes the voltage phase control based on the feedforward compensation value and an output from the filter.