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. 07, 2009
Filed:
Jun. 08, 2007
Masaki Yugou, Kakogawa, JP;
Masaki Yugou, Kakogawa, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An electric power source for a motor vehicle is so constructed and arranged that an interlock circuit detects a disconnected state of an interlock wire and turns off a contactor. The interlock circuit includes: a current output circuit outputting a detectable current via a diode to the interlock wire; a first current detection subcircuit connected via the interlock wire and the diode to the current output circuit; a second current detection subcircuit connected to a connection point operatively located between the current output circuit and the diode; and a judgment circuit. In the interlock circuit, when the detectable current is detected at the second current detection subcircuit and when the detectable current is not detected at the first current detection subcircuit, the judgment circuit judges the interlock wire to be in a disconnected state and cuts off the contactor.