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. 16, 2019
Filed:
Dec. 19, 2016
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Hiroaki Otani, Fuchu, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Abstract
A car control device according to an embodiment includes a converter and an inverter, a first contactor disposed between the transformer and the converter, a second contactor and a resistor connected in series with each other and in parallel with the first contactor, a first voltage detector and a second voltage detector disposed between the converter and the inverter, and a control unit. After the second contactor is closed and before the first contactor is closed, the control unit calculates a voltage difference between a first voltage value detected by the first voltage detector and a second voltage value detected by the second voltage detector, compares the calculated voltage difference with a predefined threshold value, and determines that at least one of the first voltage detector and the second voltage detector malfunctions when the voltage difference is greater than the threshold value.