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. 22, 2015
Filed:
Feb. 21, 2013
Sanden Corporation, Isesaki-shi, JP;
SANDEN CORPORATION, Gunma, JP;
Abstract
A motor control device according to the present invention includes: a boost converter circuitthat boosts a direct-current voltage; an inverterthat generates a drive pulse for a motorfrom the direct-current voltage of the boost converter circuit; and a control sectionthat presets a set value Id_hold obtained by multiplying a set value Id_max by an intermediate current threshold coefficient α, controls a pulse width of the drive pulse of the inverterbased on a speed deviation, controls a d-axis current in the motorbased on the speed deviation so that the pulse width of the drive pulse of the inverterdoes not exceed a threshold value, and controls the direct-current voltage of the boost converter circuitbased on the speed deviation so that the d-axis current in the motordoes not exceed the set value Id_hold.