Title:
POWER SOURCE APPARATUS FOR WORKING MACHINE
Document Type and Number:
Japanese Patent JP2005218285
Kind Code:
A
Abstract:
To prevent deterioration of a capacitor by avoiding situation where the capacitor in a fully charged state is left for long hours after completion of operation, and to effectively use accumulated electric energy.
In a hybrid type working machine, when the charge voltage of a capacitor 6 is higher than a discharge set value at the completion of machine operation, the margin of electric power exceeding the discharge set value is arranged to be discharged to an auxiliary battery 8 from the capacitor 6. Furthermore, the charge quantity of the auxiliary battery 8 in operation is restricted to secure empty capacity, to positively discharge the capacitor 6 at the completion of operation.
Inventors:
KOMIYAMA MASAYUKI
SORA TOSHIO
KAGOSHIMA MASAYUKI
SORA TOSHIO
KAGOSHIMA MASAYUKI
Application Number:
JP2004025887A
Publication Date:
August 11, 2005
Filing Date:
February 02, 2004
Export Citation:
Assignee:
KOBELCO CONSTR MACHINERY LTD
KOBE STEEL LTD
KOBE STEEL LTD
International Classes:
H02J7/00; (IPC1-7): H02J7/00
Attorney, Agent or Firm:
Etsushi Kotani
Kyuichi Ueki
Muramatsu Toshiro
Kyuichi Ueki
Muramatsu Toshiro