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:
Oct. 09, 2018
Filed:
Oct. 09, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Shohei Sunahara, Toyota, JP;
Hidetsugu Hamada, Toyota, JP;
Akihiko Ide, Okazaki, JP;
Masatoshi Shinohara, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
An electric power conversion system includes: a first battery; a second battery; an electric power converter including a plurality of switching elements, and configured to bidirectionally step up or step down electric power between an output line and each the first and second batteries in accordance with PWM signals; and a controller configured to control first and second step-up and step-down circuits by generating first and second PWM signals. The first and second step-up and step-down circuits are established between each first and second batteries and the output line. The first and second PWM signals are signals for controlling step-up and step-down operation of each first and second step-up and step-down circuit. The controller is configured to, when coupling on-duty periods of both the first and second PWM signals with each other, execute an overlap phase shift that partially overlaps the on-duty periods of the first and second PWM signals.