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. 29, 2020
Filed:
Feb. 13, 2017
Denso Corporation, Kariya, JP;
Koji Irie, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A control device alternately turns on an upper arm switch and a lower arm switch constituting an inverter on the basis of an operation pattern that is a time-series pattern that defines a switching pattern for each of the upper arm switch and the lower arm switch. The control device detects each of a present pattern that is the operation pattern currently set and a next pattern that is the operation pattern to be set next time. A plurality of timings is set in the middle of the present pattern over one electrical angle period as candidates of switching from the present pattern to the next pattern, and the control device selects a command switching timing from among the plurality of timings. The control device switches the operation pattern from the present pattern to the next pattern at the selected command switching timing.