About 54 results
https://drivepatents.com/patents/1003090 · 25 Apr 2012
A hybrid-type construction machine include a controller (42) configured to control a revolution speed of an engine (30); a hydraulic pump (21) configured to be driven by the engine (30); a motor generator (34) configured to assist the engine; and a hydraul...
https://drivepatents.com/patents/1003301 · 18 Apr 2012
A motor generator control unit controls operation of a motor generator which generates power using a driving force transmitted from an engine. A charge/discharge control unit electrically connects a first capacitor and a second capacitor and controls charg...
https://drivepatents.com/patents/1005475 · 8 Feb 2012
A hybrid-type working machine 1 includes an engine 11; a supercharger 42; an electric generator 12 that performs electricity generation by the driving force of the engine 11 and assists the driving force of the engine 11 through its own driving force; an i...
https://drivepatents.com/patents/1006725 · 28 Dec 2011
An electric power accumulating means (30) includes a DC bus connected to an electric power accumulator (19) and supplies a direct current, a smoothing capacitor provided to the DC bus, and a voltage detector (23) that detects a voltage of the DC bus. The g...
https://drivepatents.com/patents/1008101 · 2 Nov 2011
A hybrid working machine has an electric power accumulator charged by a generator driven by an engine and has an electrical load driven with electric power from the electric power accumulator. The hybrid working machine includes a direct-current bus electr...
https://drivepatents.com/patents/1008100 · 2 Nov 2011
A hybrid working machine includes a first electric motor performing a power running operation of being driven with supplied electric power and a regenerative operation of generating electric power; a first electric circuit controlling the output of the fir...
https://drivepatents.com/patents/1008299 · 26 Oct 2011
A control unit of a hybrid working machine calculates an actual hydraulic pressure output from the output of an engine (30) and the output of a motor generator (34), and calculates an assumed hydraulic pressure output (Win) as an output of a hydraulic pump...
https://drivepatents.com/patents/1008842 · 12 Oct 2011
A hybrid construction machine includes a hydraulic pressure work element driven by hydraulic pressure generated by driving power of an internal combustion engine or a motor generator, and also includes an electric-motor work element driven by an electric m...
https://drivepatents.com/patents/1008788 · 12 Oct 2011
When a hybrid-type construction machine including an electric power accumulator is started under a low-temperature environment, at first an ignition key of an engine is turned on to drive the engine. If the temperature of the electric power accumulator is ...
https://drivepatents.com/patents/1009665 · 7 Sep 2011
In a hybrid working machine, a hydraulic pump (21) is driven with the output of an engine (30) and the output of a motor generator (34). The input side power (Win) of the hydraulic pump (21) is calculated, and the output of the motor generator (34) is cont...