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:
Jun. 14, 2016
Filed:
Jun. 29, 2011
Yusuke Higaki, Tokyo, JP;
Yuuya Tanaka, Tokyo, JP;
Masaki Yamada, Tokyo, JP;
Toshiyuki Yoshizawa, Tokyo, JP;
Shigeki Harada, Tokyo, JP;
Yusuke Higaki, Tokyo, JP;
Yuuya Tanaka, Tokyo, JP;
Masaki Yamada, Tokyo, JP;
Toshiyuki Yoshizawa, Tokyo, JP;
Shigeki Harada, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A first DC/DC converter is provided between a rectifier for rectifying output of an electric generator driven by an engine, and a battery for supplying power to an in-vehicle load. An electric double layer capacitor and a second DC/DC converter for charge/discharge current control for the capacitor are provided between the rectifier and the first DC/DC converter. A control circuit sets a current target value which is a control target value for the second DC/DC converter, based on the voltage value of a battery bus, and when charging of the electric double layer capacitor is to be stopped based on a charge/discharge instruction signal, performs, before the charging is stopped, control of gradually attenuating the current target value for the second DC/DC converter, based on a voltage value VEDLC of the electric double layer capacitor.