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:
Nov. 09, 2010
Filed:
Aug. 02, 2007
Masanari Fukuchi, Wako, JP;
Hirofumi Atarashi, Wako, JP;
Kenji Tsukamoto, Wako, JP;
Honda Motor Co., Ltd, Tokyo, JP;
Abstract
A controller for a motor that can set an induced voltage constant of a motor of a double rotor type according to an operational state of the motor and expand the controllable range of the motor. The controller may include a command calculator that calculates a command value of the induced voltage constant of a motor based on the output voltage of a direct-current power supply, the number of revolutions Nm of the motor and a torque command in such a manner that the magnitude of a vector sum of a d-axis current and a q-axis current that have to be supplied in order to produce the torque according to the torque command is minimized, and a phase difference controller that calculates a command value of a rotor phase difference according to the command value and outputs the command value to an actuator to change the rotor phase difference.