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:
Apr. 26, 2022
Filed:
Mar. 28, 2019
Applicant:
Kabushiki Kaisha Toyota Jidoshokki, Kariya, JP;
Inventors:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 27/12 (2006.01); B60H 1/32 (2006.01); H02P 21/22 (2016.01); H02P 21/18 (2016.01);
U.S. Cl.
CPC ...
H02P 27/12 (2013.01); B60H 1/3226 (2013.01); H02P 21/18 (2016.02); H02P 21/22 (2016.02);
Abstract
A rotation angle estimation unit calculates a rotation angle of a rotor from a d-axis current and a q-axis current that flow into a motor of an onboard fluid machine and from a d-axis voltage command value and a q-axis voltage command value. A correction unit of an inverter device applies a pulse voltage to the motor when the motor is in a stopped state. Further, the correction unit corrects a parameter for control of the motor in accordance with a comparison result of the d-axis current and the q-axis current, which flow into the motor when the pulse voltage is applied.