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:
Nov. 06, 2012
Filed:
Nov. 18, 2009
Shingo Kawasaki, Kariya, JP;
Shingo Kawasaki, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
A controller calculates a total power fluctuation including a power fluctuation on a first unit and a power fluctuation on a second unit. The controller estimate a voltage fluctuation of the system voltage based on the total power fluctuation. Then, the controller calculates a control amount for a voltage converter by reflecting the estimated voltage fluctuation. The estimated voltage fluctuation can be used to correct a feed-forward control amount. As a result, a voltage stabilizing control is performed based on the estimated voltage fluctuation which could be occurred in response to the total power fluctuation if no stabilizing control is performed. Thereby, the stability of the system voltage can be improved without using a large size smoothing capacitor.