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:
Jan. 26, 2010
Filed:
Dec. 18, 2006
Tsuneyuki Egami, Gamagori, JP;
Keiichi Kawakami, Anjo, JP;
Takashi Ogawa, Kariya, JP;
DENSO Corporation, Kariya, JP;
Abstract
A control apparatus for a vehicle controls the input power of an AC motor to reduce the difference between a target value and detected value of the system voltage. When a rotation speed of the AC motor increases to be higher than a predetermined value or when a command value of a torque generated by the AC motor increases to be greater than a predetermined value, a current vector is adjusted to a value on a lagging side in order to control the input power of the AC motor. Thus, an input power operation quantity required for stabilizing the system voltage can be realized with a high degree of reliability. When the rotation speed and the command value decrease, the current vector is adjusted to a value on a leading side in order to control the input power of the AC motor.