US 9,810,191 B2
Engine for vehicle using alternative fuels
Jörgen Bengtsson, Svanskog (SE); Lars-Åke Andersson, Åmål (SE); and Bert Gustafsson, Åmål (SE)
Assigned to SEM AB, (SE)
Appl. No. 14/376,630
Filed by SEM AB, Åmål (SE)
PCT Filed Feb. 11, 2013, PCT No. PCT/SE2013/050114
§ 371(c)(1), (2) Date Aug. 5, 2014,
PCT Pub. No. WO2013/119178, PCT Pub. Date Aug. 15, 2013.
Claims priority of application No. 1250100 (SE), filed on Feb. 9, 2012.
Prior Publication US 2015/0032361 A1, Jan. 29, 2015
Int. Cl. F02P 17/12 (2006.01); G01M 15/11 (2006.01); F02M 21/02 (2006.01); F02D 35/02 (2006.01); F02D 41/00 (2006.01)
CPC F02P 17/12 (2013.01) [G01M 15/11 (2013.01); F02D 35/021 (2013.01); F02D 41/0027 (2013.01); F02D 2200/1015 (2013.01); F02M 21/029 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A combustion engine comprising:
a sensor device including an ion sensing measurement device configured to provide measurements of an ion current in said combustion engine during combustion;
a spark generating system for causing spark events to generate the ion current in said combustion engine during combustion, wherein the spark generating system is configured to provide information about discharge current during each spark event;
an engine management system, including an ignition control system that receives the measurements of the ion current in said combustion engine during combustion from the sensor device, and that receives the information about the discharge current during each spark event from the spark generating system,
wherein the ignition control system is configured to detect misfiring through a combined analysis comprising an analysis of the measurements of the ion current in said combustion engine during combustion received from the sensor device, the combined analysis further comprising an analysis of the information about the discharge current during each spark event received from the spark generating system, wherein the engine management system is configured to control an operating parameter of the spark generating system comprising at least one of discharge current, spark-over voltage, and primary current/voltage, subsequent to each spark event based upon the combined analysis, and
wherein the engine management system is configured to control diluted operation of the combustion engine, wherein the diluted operation provides for peak values of at least 10% of diluted gas.