Method and apparatus for controlling transmission shifting in a multi-mode powertrain system
US9174631B2 · kind B2 · utility
3Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2013 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Sep 28, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/92
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A multi-mode transmission is configured to transfer torque among an internal combustion engine, torque machines and an output member. A method for controlling shifting in the transmission includes, in response to a command to execute a range shift in the transmission to a target transmission range: applying mechanical braking torque to reduce output torque from the transmission to off-load torque from an off-going clutch, operating in a pseudo-gear range to synchronize an oncoming clutch, and applying the oncoming clutch to establish the transmission in the target range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.