US 12,345,185 B2
Vehicle emissions management
Kartavya Neema, Fremont, CA (US); Chinmay Rao, San Jose, CA (US); Rohit A. Zope, Columbus, IN (US); Gayatri Adi, Franklin, IN (US); and Paul V. Moonjelly, Columbus, IN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Appl. No. 18/561,812
Filed by Cummins Inc., Columbus, IN (US)
PCT Filed May 18, 2022, PCT No. PCT/US2022/029788
§ 371(c)(1), (2) Date Nov. 17, 2023,
PCT Pub. No. WO2022/245911, PCT Pub. Date Nov. 24, 2022.
Claims priority of provisional application 63/190,075, filed on May 18, 2021.
Prior Publication US 2024/0254909 A1, Aug. 1, 2024
Int. Cl. F01N 11/00 (2006.01); F01N 9/00 (2006.01); F02D 41/14 (2006.01)
CPC F01N 11/002 (2013.01) [F01N 11/007 (2013.01); F01N 9/005 (2013.01); F01N 2900/04 (2013.01); F01N 2900/0402 (2013.01); F01N 2900/0412 (2013.01); F01N 2900/0414 (2013.01); F01N 2900/0418 (2013.01); F01N 2900/0422 (2013.01); F01N 2900/0601 (2013.01); F01N 2900/08 (2013.01); F01N 2900/14 (2013.01); F01N 2900/1402 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/16 (2013.01); F02D 2041/1423 (2013.01); F02D 2041/143 (2013.01); F02D 2041/1433 (2013.01); F02D 2041/1437 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of balancing engine performance and engine emissions of an engine in a vehicle in real time, the method comprising:
sensing operation data indicative of an engine response during a current engine operation that includes a supervisory control of engine emissions;
evaluating, using a controller and based on the operation data, a response model to determine engine performance deviation data corresponding to an expected baseline engine performance and an expected current engine performance at the current engine operation; and
setting a performance constraint in response to evaluating the model, the performance constraint being set such that the engine performance deviation data is maintained at a controls objective that inhibits deterioration of the engine performance over time;
wherein the engine performance deviation data is brake specific fuel consumption (BSFC) deviation data, and wherein the performance constraint is a BSFC constraint.
 
4. A method of balancing engine performance and engine emissions of an engine in a vehicle in real time, the method comprising:
sensing operation data indicative of an engine response during a current engine operation that includes a supervisory control of engine emissions;
evaluating, using a controller and based on the operation data, a response model to determine engine performance deviation data corresponding to an expected baseline engine performance and an expected current engine performance at the current engine operation; and
setting a performance constraint in response to evaluating the model, the performance constraint being set such that the engine performance deviation data is maintained at a controls objective that inhibits deterioration of the engine performance over time;
wherein the supervisory control is based on operating points along a fuel-emissions tradeoff curve that includes calibrations for a low emissions operating point, a baseline operating point, and a best fueling operating point; and wherein the operating points correspond to a set of rail pressure and air handling references for the engine.