US 9,810,603 B2
Method and device for detecting glow ignition of an internal combustion engine in a motor vehicle
Samuel Trebesius, Wahrenholz (DE); Stefan Klie, Braunschweig (DE); Andreas Sprysch, Edemissen (DE); Stefanie Thauer, Gifhorn (DE); and Florian Thauer, Gifhorn (DE)
Assigned to VOLKSWAGEN AKTIENGESELLSCHAFT, Wolfsburg (DE)
Appl. No. 14/440,506
Filed by Volkswagen Aktiengesellschaft, Wolfsburg (DE)
PCT Filed Oct. 23, 2013, PCT No. PCT/EP2013/072120
§ 371(c)(1), (2) Date May 4, 2015,
PCT Pub. No. WO2014/067821, PCT Pub. Date May 8, 2014.
Claims priority of application No. 10 2012 021 517 (DE), filed on Nov. 2, 2012.
Prior Publication US 2015/0308924 A1, Oct. 29, 2015
Int. Cl. G01M 15/04 (2006.01); G01M 15/11 (2006.01); F02D 41/00 (2006.01); F02D 41/14 (2006.01); F02D 41/22 (2006.01); F02D 35/02 (2006.01); G01L 23/22 (2006.01); F02P 5/152 (2006.01)
CPC G01M 15/11 (2013.01) [F02D 35/02 (2013.01); F02D 35/027 (2013.01); F02D 41/0097 (2013.01); F02D 41/1473 (2013.01); F02D 41/1497 (2013.01); F02D 41/22 (2013.01); F02P 5/152 (2013.01); G01L 23/225 (2013.01); G01M 15/046 (2013.01); Y02T 10/40 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for detecting a glow ignition of a fuel-air mixture in a cylinder chamber of an internal combustion engine having control unit, a first cylinder and at least one additional cylinder, the first cylinder and the at least one additional cylinder being connected to a crankshaft, said method comprising the steps of:
measuring, via the control unit, subsegment times of the first cylinder;
measuring, via the control unit, subsegment times of the at least one additional cylinder;
comparing, via the control unit, the subsegment times of the first cylinder to the subsegment times of the at least one additional cylinder, thereby forming a reference characteristic for the glow ignition as a function of the comparison; and
subsequently generating, via the control unit, a signal based upon said reference characteristic, said signal corresponding to a detection of the glow ignition.