US 12,168,962 B2
Dual fuel engine system and method for controlling dual fuel engine system
Travis Alva Anderson, Columbus, IN (US); Axel O. zur Loye, Columbus, IN (US); Mark A. Rosswurm, Columbus, IN (US); Paul Daniel Borisuk, Nashville, IN (US); Shashank Bishnoi, Columbus, IN (US); Matthew W. Isaacs, Moncks Corner, SC (US); Jason A. Gore, Highland Village, TX (US); Atin Tandon, Greenwood, IN (US); and Jamie Robert John Sleigh, Chester le Street (GB)
Assigned to Cummins Power Generation Inc., Minneapolis, MN (US)
Filed by Cummins Power Generation Inc., Minneapolis, MN (US)
Filed on Sep. 14, 2022, as Appl. No. 17/944,900.
Prior Publication US 2024/0084745 A1, Mar. 14, 2024
Int. Cl. F02D 19/06 (2006.01); F02D 31/00 (2006.01)
CPC F02D 19/0607 (2013.01) [F02D 19/0631 (2013.01); F02D 19/0642 (2013.01); F02D 31/007 (2013.01); F02D 2200/023 (2013.01); F02D 2200/101 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for controlling a dual fuel engine system, the method comprising:
estimating a total indicated engine load, the total indicated engine load being based on a sum of a measured engine power and a power loss estimate;
determining a total fueling amount based on an engine speed and the total indicated engine load, the total fueling amount including a gas fueling amount and a diesel fueling amount; and
controlling the dual fuel engine system using the total fueling amount
determining the power loss estimate based on the engine speed and at least one of a friction torque estimate, an accessory torque estimate, or a charge air pumping torque.