Hybrid vehicle powertrain with a multiple-ratio power transmission mechanism
US7331899B2 · kind B2 · utility
22Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2007 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Aug 6, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control method and system for a hybrid vehicle powertrain with an electric motor in a power flow path between an internal combustion engine and a multiple-ratio geared transmission. Motor torque, which is added to engine torque to obtain an effective transmission input torque, is modulated to achieve smooth power-on upshifts and coasting downshifts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.