Method for reducing gear rattle in a hybrid electric vehicle powertrain
US8417431B2 · kind B2 · utility
5Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2009 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Jan 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for controlling a powertrain for a hybrid electric vehicle having an engine and a motor and gearing for establishing power flow paths from the engine and the motor with common gear elements to vehicle traction wheels. An engine power bias is applied to an engine power command and a bias to a motor torque command to avoid an operating mode in which motor torque is at or near zero, whereby gear rattle due to torque disturbances is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.