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:
Mar. 25, 2014
Filed:
Mar. 23, 2012
Eiji Yamada, Owariasahi, JP;
Kenji Hiramoto, Owariasahi, JP;
Hideo Nakai, Nisshin, JP;
Norimoto Minoshima, Kariya, JP;
Eiji Yamada, Owariasahi, JP;
Kenji Hiramoto, Owariasahi, JP;
Hideo Nakai, Nisshin, JP;
Norimoto Minoshima, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A rotating electrical machine system includes a stator that has stator windings of a plurality of phases, and that generates a stator magnetomotive force in accordance with stator current of different phases, which is supplied to the stator windings of the plurality of phases; a rotor on which rotor windings are wound such that rotor current is generated in accordance with the stator magnetomotive force generated by the stator and a magnetic pole is formed by the rotor current; and a control unit that controls an output torque from the rotor, by controlling the stator current. In a case where a predetermined torque is output from the rotor, the control unit applies a pulse to the stator current so as to increase the stator current and reduce the rotor current, when a temperature of the rotor is high as compared with when the temperature of the rotor is low.