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:
Jul. 04, 2006
Filed:
Oct. 25, 2005
Shinobu Ochiai, Wako, JP;
Keisuke Urushihara, Wako, JP;
Shinobu Ochiai, Wako, JP;
Keisuke Urushihara, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An electric motor control apparatus suppressing power loss caused by driving an electric motor acting as a motor with a generated output of an electric motor acting as a generator. The electric motor control apparatus comprises a PAM controlled motor selecting unit () for determining which of 'control pattern 1' and 'control pattern 2' should be executed by comparison in total power loss, where a voltage control unit on the power generation side () performs voltage transformation with a PWM control in a first inverter () and generates a drive voltage for a second electric motor () with a PAM control in a second inverter () in the control pattern 1 and a voltage control unit on the driving side () outputs a rectified voltage from a generated voltage of a first electric motor () without voltage transformation in the first inverter () and generates a drive voltage for the second electric motor () with a PWM control in the second inverter () in the control pattern 2.