Patent · US Active

Engine and exhaust heating

US7950368B2 · kind B2 · utility

7Cited by

11References

14Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Ross Dykstra Pursifull · Dearborn, US
Gopichandra Surnilla · Beverly Hills, US
Nate Trask · Dearborn, US

Key dates

Filing date	Nov 6, 2008
Grant date	May 31, 2011
Priority date	—
Expiry date	Jul 8, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for controlling a vehicle engine having a plurality of cylinders is provided. The method comprises: during engine idling, advancing spark timing of at least one cylinder to before a peak torque timing, and retarding spark timing from the advanced timing toward the peak torque timing in response to decreased engine speed to maintain idling speed.

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