Hybrid construction machine
AssigneesSumitomo Heavy Industries, Ltd., Sumitomo(S.H.I.) Construction Machinery Co., Ltd.
InventorsKyoko Takanashi, Hideaki Yuasa, Kiminori Sano
Life of this patent
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Abstract
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 motor. A superordinate control unit generates a control command which controls drive of the hydraulic pressure work element and the electric-motor work element. A subordinate control unit controls drive of the hydraulic pressure work element and the electric-motor work element based on the control command generated by the superordinate control unit. The subordinate control unit monitors an error in the superordinate control unit.
Claims18
A hybrid construction machine including a hydraulic pressure work element driven by hydraulic pressure generated by driving power of an internal combustion engine or a motor generator, and an electric-motor work element driven by an electric motor, the hybrid construction machine comprising:
- a superordinate control unit configured to generate a control command which is configured to control drive of the hydraulic pressure work element and the electric-motor work element;
- and
- a plurality of subordinate control units configured to control the drive of the hydraulic pressure work element and the electric-motor work element based on the control command generated by the superordinate control unit, wherein the subordinate control units are configured to monitor an error in the superordinate control unit.
A hybrid construction machine including a hydraulic pressure work element driven by hydraulic pressure generated by driving power of an internal combustion engine or a motor generator, an electric-motor work element driven by an electric motor, and an electricity accumulating system element for accumulating electricity, the hybrid construction machine comprising:
- a superordinate control unit configured to generate a control command which is configured to control drive of the electric-motor work element and the electricity accumulating system element;
- and
- a plurality of subordinate control units configured to control drive of the electric-motor work element and the electricity accumulating system element based on the control command generated by the superordinate control unit, wherein the subordinate control units are configured to monitor an error in the superordinate control unit.
Dependencies are inferred from the claim text.