Torque transmission device and method of reducing effects of torque pulsations
US7121975B2 · kind B2 · utility
11Cited by
12References
12Claims
0Family size
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Key dates
| Filing date | Nov 5, 2003 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Dec 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/7072
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Torque pulsations generated in the torque of an engine are obtained from detection signals from a crankshaft angle detection sensor and an engine water temperature detection sensor at the time of an engine starting operation. A control unit controls an MG1 via a drive circuit so that a damping torque of the same phase as the torque pulsations is generated, and ensures that the torque pulsations of the engine are not transmitted to a ring gear from a planetary carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.