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. 05, 2013
Filed:
Dec. 23, 2009
Bengt Wahlqvist, Vikmanshyttan, SE;
Borje Maleus, Bro, SE;
Bengt Wahlqvist, Vikmanshyttan, SE;
Borje Maleus, Bro, SE;
CTEK Sweden AB, Vikmanshyttan, SE;
Abstract
A battery charging system () and method for state controlled charging of a battery (). The battery charging system comprises two parallel paths () for supplying charging current to the battery () from two parallel sources of charging current, an energy source () and a controlled charging device (). A control unit () is adapted to control the supply of charging current along the two paths in response to a detected state of the battery (). If a state above a predetermined threshold is detected, the control unit () controls the supply of charging current such that the battery () receives charging current from the controlled charging device (), but not directly from the energy source (). The detected state of the battery may e.g. be a temperature state. The present invention allows for balancing the demands of high charging rate and long expected lifetime of the battery ().