Hybrid working machine

Details Hybrid working machine Hybrid working machine

2007-09-24

2010-06-01

Ponomarenko, Nicholas (Department: 2839)

Prime-mover dynamo plants

Electric control

Engine control

C180S065230

Reexamination Certificate

active

07728449

ABSTRACT:
The present invention is to drive a hydraulic pump and a generator motor by an engine, electrically charge a battery by a generator operation of the generator motor, and assist the engine through driving the generator motor by electric power of the battery. On the premise of the configuration above, when a deviation between a target rotation speed of the engine and an actual rotation speed of the engine is equal to or more than a preset value, and when a residual amount of fuel is equal to or less than a preset value, it is considered to be engine failure or an operation state which is directly connected to the engine failure and an engine assisting action is automatically stopped.

REFERENCES:
patent: 6199307 (2001-03-01), Kagoshima et al.
patent: 6635973 (2003-10-01), Kagoshima et al.
patent: 6666022 (2003-12-01), Yoshimatsu et al.
patent: 6789335 (2004-09-01), Kinugawa et al.
patent: 6851207 (2005-02-01), Yoshimatsu
patent: 7069673 (2006-07-01), Kagoshima et al.
patent: 7279801 (2007-10-01), Kagoshima
patent: 7487023 (2009-02-01), Komiyama et al.
patent: 7525206 (2009-04-01), Kagoshima et al.
patent: 2007/0214782 (2007-09-01), Komiyama et al.
patent: 2008/0093864 (2008-04-01), Kagoshima et al.
U.S. Appl. No. 12/581,299, filed Oct. 19, 2009, Kagoshima, et al.

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