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:
Nov. 29, 2005
Filed:
May. 28, 2004
Yuji Kito, Nagoya, JP;
Hiroshi Fujita, Kuwana, JP;
Kazuyuki Kato, Kariya, JP;
Toshiharu Asai, Toyota, JP;
Yuji Kito, Nagoya, JP;
Hiroshi Fujita, Kuwana, JP;
Kazuyuki Kato, Kariya, JP;
Toshiharu Asai, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A power supply unit includes a battery, a motor which is driven by the battery, an electric power converting device which is provided between the battery and the motor, a simulated electric leak generating device which generates an electric leak state between the battery and a vehicle body, and an electric leak detecting device which detects a simulated electric leak. A diagnostic system which performs a diagnosis of operating performance of the electric leak detecting device includes an opening/closing device which connects/disconnects the electric power converting device to/from the battery, and an opening/closing detecting device which detects opening/closing of the opening/closing device and which outputs a result of detection to the simulated electric leak generating device and the electric leak detecting device. When opening/closing of the opening/closing device is detected by the opening/closing detecting device, both generation of a simulated electric leak and detection of an electric leak are retried.