System and method for controlling a free-wheeling motor vehicle
US9381921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2014 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Mar 27, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system and method for controlling a free-wheeling motor vehicle including at least one internal combustion engine connected to drive wheels by a transmission. The method includes: determining engine torque at wheels; determining longitudinal acceleration of the vehicle when a free-wheeling driving mode is activated, on the basis of resisting torques on the wheels; determining longitudinal acceleration of the vehicle when the free-wheeling driving mode is deactivated on the basis of the engine torque and the resisting torques on the wheels; determining the difference in longitudinal acceleration between when the free-wheeling driving mode is activated and the free-wheeling driving mode is deactivated; and opening the transmission chain when the longitudinal acceleration difference leans substantially toward a value of zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.