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. 30, 2015
Filed:
Mar. 28, 2011
Ryotaro Iwami, Kanagawa, JP;
Ryotaro Iwami, Kanagawa, JP;
Abstract
A vehicle power source device which can improve the accuracy of battery deterioration detection. The vehicle power source device () is provided with: generator () which is in-built in a vehicle; high-voltage first battery () which stores the electricity generated by the generator (); DC/DC converter () which is provided between the generator () and the first battery (), and electrical component (); second battery () which is connected to the first battery () via the DC/DC converter (), and which has a lower voltage than the first battery (); and power source ECU () which controls the DC/DC converter (). If the current drawn from the first battery () satisfies predicted conditions, the power source ECU () increases the output voltage of the DC/DC converter, measures the parameters required to detect the deterioration of the first battery (), and determines the deterioration of the first battery ().