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:
Sep. 03, 2019
Filed:
Dec. 19, 2016
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Yoshinobu Sugiyama, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A contactless electric power transmission device includes a power transmission assembly, a first temperature sensor, a second temperature sensor, and an electronic control unit. The first temperature sensor is configured to detect a temperature of an inverter. The second temperature sensor is configured to detect a temperature of a resonance circuit. The electronic control unit is configured to adjust the frequency by controlling the inverter. The electronic control unit is configured to perform first control when the temperature of the inverter is higher than the temperature of the resonance circuit, and perform second control when the temperature of the resonance circuit is higher than the temperature of the inverter. The first control includes control for adjusting the frequency so as to reduce output current of the inverter. The second control includes control for adjusting the frequency so as to reduce current flowing through the resonance circuit.