Hybrid construction machine
US9726205B2 · kind B2 · utility
1Cited by
0References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2015 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Feb 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3835
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hybrid construction machine detects the voltage of each cell that forms a battery, calculates a difference voltage between the detected voltage and a predetermined upper-limit working voltage, selects the lower one of the calculated difference voltage and a stored difference voltage, corrects an upper-limit working charging rate to decrease as the selected difference voltage decreases, and controls charging of the battery, based on the corrected upper-limit working charging rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.