Torque modulation in a hybrid vehicle downshift during regenerative braking
US9493148B2 · kind B2 · utility
4Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2011 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Apr 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/93
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A controller and a control strategy minimizes shift shock in a hybrid electric vehicle during a downshift conducted while the vehicle is in a regenerative braking mode by maintaining total powertrain torque at a desired target during the downshift. The controller has three preferable modes including modulating just engine torque, modulating just electric motor torque or simultaneously modulating both motor and engine torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.