Method for crankshaft torque modification during transmission shifts using multiple torque actuators and control system for same
US8721498B2 · kind B2 · utility
4Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Nov 7, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of controlling engine crankshaft torque on a vehicle requests crankshaft torque modification using multiple types of torque actuators prior to and during a single commanded shift, such as an upshift. Appropriate levels of torque modification for the request, as well as appropriate times to make determinations regarding actuator type and make crankshaft torque reduction requests are determined in light of timing of key events during the shift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.