US 11,867,142 B2
Systems and methods for fuel injector control
Victor Manuel Salazar, Clifton Park, NY (US); Adam Edgar Klingbeil, Ballston Lake, NY (US); and Pradheepram Ottikkutti, Lawrence Park, PA (US)
Assigned to TRANSPORTATION IP HOLDINGS, LLC, Norwalk, CT (US)
Filed by Transportation IP Holdings, LLC, Norwalk, CT (US)
Filed on Aug. 6, 2021, as Appl. No. 17/396,356.
Application 17/396,356 is a continuation in part of application No. 16/380,727, filed on Apr. 10, 2019, granted, now 11,085,410.
Application 16/380,727 is a continuation of application No. 15/197,038, filed on Jun. 29, 2016, granted, now 10,302,056, issued on May 28, 2019.
Prior Publication US 2021/0363952 A1, Nov. 25, 2021
Int. Cl. F02M 61/00 (2006.01); F02M 61/10 (2006.01); F02D 41/20 (2006.01); F02M 61/18 (2006.01); F02M 45/08 (2006.01); F02D 41/14 (2006.01); F02D 41/26 (2006.01); F02M 51/06 (2006.01)
CPC F02M 61/10 (2013.01) [F02D 41/1439 (2013.01); F02D 41/20 (2013.01); F02D 41/2096 (2013.01); F02D 41/26 (2013.01); F02M 45/086 (2013.01); F02M 51/0607 (2013.01); F02M 51/0653 (2013.01); F02M 61/182 (2013.01); F02D 2041/2024 (2013.01); F02D 2041/2079 (2013.01); F02M 2200/46 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multi-fuel injector assembly comprising:
a first fuel injector assembly configured to deliver a first type of fuel to a cylinder of an engine, the first fuel injector assembly comprising a first nozzle, a first needle, and a first actuator, the first nozzle comprising a first cavity that houses the first needle;
a second fuel delivery system configured to deliver a second type of fuel to the cylinder, the second fuel delivery system comprising a second nozzle, a second needle, and a second actuator, the second nozzle comprising a second cavity that houses the second needle; and
one or more processors operably connected to the first fuel injector assembly and the second fuel delivery system and configured to control the first fuel injector assembly and the second fuel delivery system to provide a first target fuel composition to the cylinder during a first time period of engine operational and to provide a second target fuel composition to the cylinder during a second time period of engine operation, the first target fuel composition being different from the second target fuel composition,
wherein, to achieve the first target fuel composition, the one or more processors control the first actuator to position the first needle at a first fuel delivery position within the first cavity to deliver a first, non-zero amount of the first type of fuel to the cylinder, and control the second actuator to position the second needle at a first position within the second cavity, and
to achieve the second target fuel composition, the one or more processors control the first actuator to move the first needle within the first cavity to a second fuel delivery position to deliver a second, non-zero amount of the first type of fuel to the cylinder, and control the second actuator to move the second needle within the second cavity from the first position to a second position to deliver a non-zero amount of the second type of fuel to the cylinder, such that the second target fuel composition includes both the first and second types of fuel.