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:
Feb. 23, 2016
Filed:
Mar. 18, 2014
Kenichi Takagi, Nagoya, JP;
Masanori Ishigaki, Nagakute, JP;
Takaji Umeno, Nisshin, JP;
Takahiro Hirano, Toyota, JP;
Jun Muto, Toyota, JP;
Yasuharu Terada, Toyota, JP;
Kenichiro Nagashita, Toyota, JP;
Kenichi Takagi, Nagoya, JP;
Masanori Ishigaki, Nagakute, JP;
Takaji Umeno, Nisshin, JP;
Takahiro Hirano, Toyota, JP;
Jun Muto, Toyota, JP;
Yasuharu Terada, Toyota, JP;
Kenichiro Nagashita, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
An electric power conversion system includes: a primary electric power conversion circuit including a primary coil connected to a connection point between a plurality of transistors; a secondary electric power conversion circuit configured similarly to the primary electric power conversion circuit and including a secondary coil corresponding to the primary coil; and a control circuit controlling transfer of electric power between the primary and secondary electric power conversion circuits. The control circuit executes feedforward control for setting one of an on/off ratio of a terminal voltage signal of the primary coil and an on/off ratio of a terminal voltage signal of the secondary coil, in response to at least one of fluctuations in voltage ratio between both waveforms and fluctuations in phase symmetry between both waveforms, when the terminal voltage waveform of the primary coil and the terminal voltage waveform of the secondary coil are different from each other.