公开(公告)号：US11692472B2

公开(公告)日：2023-07-04

申请号：US17966620

申请日：2022-10-14

Applicant: Cummins, Inc.

Inventor： Travis Alva Anderson ,  Joan M. Wills ,  Rajkumar Subramanian ,  Vaibhav Daramwar ,  Pagalavan Mathari Bakthavatsalam ,  Paul Daniel Borisuk

IPC: F01N3/20 ,  F02D41/02 ,  F02D9/04 ,  F02B37/18 ,  F02D41/14 ,  F01N9/00

CPC classification number: F01N3/2066 ,  F01N9/00 ,  F02B37/18 ,  F02D9/04 ,  F02D41/024 ,  F02D41/1448 ,  F01N2900/1404 ,  F01N2900/1406 ,  F02D2700/04 ,  Y02T10/12 ,  Y02T10/40

Abstract: A method includes: determining that at least one cylinder of a first cylinder bank of an engine is active; determining that at least one cylinder of a second cylinder bank of the engine is inactive; receiving an inlet temperature of a selective catalytic reduction system; comparing the inlet temperature to a temperature setpoint; and adjusting at least one of a first exhaust manifold pressure setpoint for the first cylinder bank or a second exhaust manifold pressure setpoint for the second cylinder bank based on the comparison.

公开(公告)号：US10533514B2

公开(公告)日：2020-01-14

申请号：US15578924

申请日：2017-06-02

Applicant: CUMMINS INC.

Inventor： Phanindra V. Garimella ,  John L. Hoehne ,  Ian W. McGiffen ,  Chandan Mahato ,  Boopathi Singalandapuram Mahadevan ,  Pagalavan Mathari Bakthavatsalam ,  Travis Alva Anderson

IPC: F02D41/40 ,  F02D41/38 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14

Abstract: A method of controlling a fuel injector comprises measuring a pressure in a cylinder of an engine with a pressure sensor and determining at least one of a crank angle and a crank speed with a crank sensor. The method also comprises calculating a net indicated mean effective pressure of the cylinder from the measured value of the pressure sensor and the determined value of the crank sensor. Also, the method comprises adjusting a fueling parameter of a fuel injector for the cylinder in response to the difference between the calculated net indicated mean effective pressure and a reference mean effective pressure indicates a change in power of the engine. Alternatively, the method may adjust the fueling parameter based on a power feedback signal for the engine.