Hybrid construction machine
US8818648B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 1, 2009 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Feb 14, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/902
- WIPO fieldCivil engineering
- WIPO sectorOther fields
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.