公开(公告)号：US20190226420A1

公开(公告)日：2019-07-25

申请号：US15578924

申请日：2017-06-02

Applicant: Phanindra V. GARIMELLA ,  John L. HOEHNE ,  Ian W. MCGIFFEN ,  Chandan MAHATO ,  Boopathi Singalandapuram MAHADEVAN ,  Pagalavan Mathari BAKTHAVATSALAM ,  Travis Alva ANDERSON ,  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 ,  F02D41/14 ,  F02D41/02 ,  F02D41/04 ,  F02D41/00 ,  F02D41/38

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.