US 11,906,502 B2
Products and processes for analyzing octane content
Howard W. Lutnick, New York, NY (US); and Antonio Papageorgiou, Bronx, NY (US)
Assigned to CFPH, LLC, New York, NY (US)
Filed by CFPH, LLC, New York, NY (US)
Filed on Mar. 10, 2023, as Appl. No. 18/181,631.
Application 18/181,631 is a continuation of application No. 17/200,721, filed on Mar. 12, 2021, granted, now 11,604,181.
Application 17/200,721 is a continuation of application No. 16/237,149, filed on Dec. 31, 2018, granted, now 10,948,475, issued on Mar. 16, 2021.
Application 16/237,149 is a continuation of application No. 15/332,064, filed on Oct. 24, 2016, granted, now 10,168,311, issued on Jan. 1, 2019.
Application 15/332,064 is a continuation of application No. 13/568,294, filed on Aug. 7, 2012, granted, now 9,476,867, issued on Oct. 25, 2016.
Application 13/568,294 is a continuation of application No. 13/042,977, filed on Mar. 8, 2011, granted, now 8,255,168, issued on Aug. 28, 2012.
Application 13/042,977 is a continuation of application No. 11/856,900, filed on Sep. 18, 2007, granted, now 7,925,449, issued on Apr. 12, 2011.
Claims priority of provisional application 60/845,343, filed on Sep. 18, 2006.
Prior Publication US 2023/0213496 A1, Jul. 6, 2023
Int. Cl. G01N 33/28 (2006.01); G06Q 99/00 (2006.01); F02P 5/145 (2006.01); G01N 33/22 (2006.01)
CPC G01N 33/2829 (2013.01) [F02P 5/145 (2013.01); G01N 33/22 (2013.01); G06Q 99/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for adjusting operation of a spark-ignition internal combustion engine having an electronic control unit (ECU) based on an octane measurement of fuel being delivered to the engine, the method comprising:
providing an analyzer of octane ratings of the fuel in electronic communication with the ECU, the analyzer having a processor, a memory and a receptacle for sampling the fuel;
periodically pumping a sample of the fuel from a source to the receptacle;
determining, by the analyzer, an octane rating of the sample by
(1) forming a representation of a spectra of the sample, and
(2) matching the spectra of the sample with a plurality of spectra having pre-assigned industry-accepted octane ratings, and
(3) assigning to the sample a nearest recognized octane rating of the matching of the plurality of spectra;
communicating, by the analyzer to the ECU, the octane rating assigned of the sample; and
adjusting, by the ECU, performance of the engine in accordance with the communicated octane rating, wherein the ECU (1) retards engine ignition timing when the communicated octane rating is lower than required for the engine, (2) advance engine ignition timing when the communicated octane rating is higher than required for the engine, and (3) do nothing when communicated octane rating are not determined.