Method and system for disengaging parking pawl in hybrid transmission
US10969011B2 · kind B2 · utility
0Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Aug 8, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/92
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle includes a transmission having an electric machine, a park ring fixedly coupled to the electric machine, and a parking pawl engageable with the park ring to hold the park ring stationary when the transmission is in PARK. A vehicle is programmed to, responsive to a request to shift from PARK, command disengagement of the parking pawl and concurrently command a torque to the electric machine to counteract driveline torque on the park ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.