(19)
(11)EP 1 577 543 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
30.06.2010 Bulletin 2010/26

(43)Date of publication A2:
21.09.2005 Bulletin 2005/38

(21)Application number: 05004478.3

(22)Date of filing:  01.03.2005
(51)International Patent Classification (IPC): 
F02N 11/08(2006.01)
F02N 17/00(0000.00)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30)Priority: 19.03.2004 US 805645

(71)Applicant: Ford Global Technologies, LLC
Dearborn, MI 48126 (US)

(72)Inventors:
  • Lewis, Donald J.
    Howell MI 48844 (US)
  • Russell, John D.
    Portland OR 97212 (US)
  • Trask, Nate
    Dearborn MI 48128 (US)
  • Winstead, Vince J.
    Farmington Hills MI 48336 (US)

(74)Representative: Herrmann, Uwe et al
Lorenz - Seidler - Gossel Widenmayerstrasse 23
80538 München
80538 München (DE)

  


(54)Eva cold start valve timing


(57) A system and method to control engine valve timing to during the start of an internal combustion engine. Electromechanical valves are controlled in a manner to reduce hydrocarbon emissions during the start of an internal combustion engine. The method controls intake valves so that smaller adjustments are made to cylinder spark advance and air-fuel over a range of operating conditions.







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