Patent · US Active

Method and device for operating a motor vehicle with an internal combustion engine in a coasting operating mode

US8958969B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Urs Christen · Pieterlen, CH
Andreas R. Schamel · Lechenich, DE
Goetz-Phillipp Wegner · Dortmund, DE
Uwe Gussen · Nideggen, DE

Key dates

Filing date	Sep 21, 2012
Grant date	Feb 17, 2015
Priority date	—
Expiry date	Dec 3, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/60
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The invention relates to a method and a device for operating a motor vehicle with an internal combustion engine in a coasting operating mode in which the motor vehicle rolls essentially in a propulsionless fashion and essentially without a perceptible engine drag torque on an essentially level road if there is no propulsion request or braking request from a driver of the motor vehicle. According to the invention, the coasting operating mode is not brought about by automatically opening the drivetrain but rather is simulated with the clutch closed in that so much air/fuel mixture is fed to the internal combustion engine that the engine drag torque is largely but not completely compensated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.