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. 21, 2009
Filed:
Jul. 17, 2006
Kazushige Okumoto, Kariya, JP;
Shin Kusase, Oobu, JP;
Kazushige Okumoto, Kariya, JP;
Shin Kusase, Oobu, JP;
Denso Corporation, Kariya, JP;
Abstract
The vehicle-use tandem electric rotating machine includes a first stator-rotor pair, a second stator-rotor pair, and a controller individually controlling a first field current flowing into a first field coil of the first stator-rotor pair and a second field current flowing into a second field coil of the second stator-rotor pair. The first stator-rotor pair is configured to generate electric power to be supplied to essential electric loads, and the second stator-rotor pair is configured to generate electric power to be supplied to non-essential electric loads. The controller is configured to restrict the second field current from flowing into the second field coil when rotational speed of a vehicle engine driving the tandem electric rotating machine is lower than a predetermined threshold speed set above an idle speed of the vehicle engine.