Kenneth C Leisenring

US Patent:

6491024, Dec 10, 2002

Filed:

Oct 11, 2000

Appl. No.:

09/686036

Inventors:

Francis Connolly - Ann Arbor MI
Kelvin Lee Dobbins - Dearborn MI
Kenneth Carl Leisenring - Dearborn MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F02P 500

US Classification:

12340619, 12340628

Abstract:

Systems and methods for controlling an internal combustion engine during and shortly after starting include controlling combustion burn location via ignition timing to improve engine stability while reducing feedgas emissions. Open or closed loop control based on observed or measured mass fraction burned or cumulative released heat allows maintenance of a lean air/fuel ratio charge with significantly retarded ignition timing to reduce catalyst light-off time and temperature and reduce engine feedgas emissions.

US Patent:

20210062775, Mar 4, 2021

Filed:

Aug 26, 2019

Appl. No.:

16/551639

Inventors:

- Dearborn MI, US
Kenneth Carl Leisenring - Dearborn MI, US
Scott Makowski - Northville MI, US
Eric Michael Rademacher - Beverly Hills MI, US

International Classification:

F02N 11/08
B60W 30/18

Abstract:

Systems and methods for operating a vehicle that includes an engine that may be automatically stopped and started are described. In one example, an amount of time to start an engine and a rate of engine acceleration are adjusted in response to what type of event triggered an automatic engine start.