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:
Apr. 26, 2011
Filed:
Mar. 25, 2009
Kazuya Tsuchiya, Toyota, JP;
Tomohiko Miyamoto, Nishikamo-gun, JP;
Hiroshi Yoshida, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A drive device having at least one electric motor that inputs and outputs motive power includes: a plurality of capacitors; a plurality of relays for capacitors that connects and disconnects the motor and the capacitors; and a relay control device that controls the relays for capacitors. The relay control device controls the plurality of relays for capacitors so that during a system start-up, a part of the plurality of relays for capacitors are connected, that is, a partially-on-state is established, after a first predetermined condition is satisfied during the partially-on-state, the part of relays for capacitors are disconnected and a remaining part of the plurality of relays for capacitors are connected, and after a second predetermined condition is satisfied during the remainder-on-state, all the plurality of relays for capacitors are connected.