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:
Dec. 30, 2014
Filed:
Sep. 14, 2010
Tetsuji Ono, Kanagawa, JP;
Tetsuji Ono, Kanagawa, JP;
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Abstract
A control method of measuring an internal resistance of an electric power accumulatorof a hybrid-type construction machinecomprises: a pattern generating step of generating an internal resistance measurement pattern in a non-operation status in which there is no operation for the hybrid-type construction machine from an operator; an output changing step of changing an output of a generatorbased on the pattern generated in the pattern generating step in the non-operation status; an electric current, etc., detecting step of detecting electric current values and voltage values in the electric power accumulatorbefore and after the change of the output of the generatorin the output changing step; and an internal resistance measuring step of measuring the internal resistance of the electric power accumulatorbased on the electric current values and the voltage values detected before and after the change of the output of the generatorin the electric current, etc., detecting step.