公开(公告)号：US20200025119A1

公开(公告)日：2020-01-23

申请号：US16338312

申请日：2016-09-30

Applicant: Cummins Inc.

Inventor： Jeremiah C. Nethercutt ,  Emrah Arslanturk ,  Weiwen Wang ,  James A. Cramer

IPC: F02D41/02 ,  F02D41/14 ,  F02B37/22 ,  F02D13/02 ,  F01P3/20 ,  F01N3/20 ,  G05D23/19

Abstract: A method, controller, and internal combustion engine including the controller and operable in accordance with the method by: determining a temperature of a working liquid in an engine block circuit (31, 35) of the internal combustion engine (10), the working liquid comprising a cooling liquid or a lubrication liquid; operating the internal combustion engine (10); engaging a thermal load responsive to the temperature of the liquid being below a first temperature threshold, wherein engaging the thermal load comprises at least one of increasing a pumping load of the internal combustion engine (10), or changing an air/fuel ratio, thereby adding heat to the engine block circuit (31, 35); controlling the thermal load as a function of the temperature of the liquid; and disengaging at least a portion of the thermal load responsive to the temperature of the liquid being above the low temperature limit.

公开(公告)号：US11639693B2

公开(公告)日：2023-05-02

申请号：US16338312

申请日：2016-09-30

Applicant: Cummins Inc.

Inventor： Jeremiah C. Nethercutt ,  Emrah Arslanturk ,  Weiwen Wang ,  James A. Cramer

IPC: F02D41/02 ,  F01N3/20 ,  F01P3/20 ,  F02B37/22 ,  F02D13/02 ,  F02D41/14 ,  G05D23/19 ,  G05B15/02

Abstract: A method, controller, and internal combustion engine including the controller and operable in accordance with the method by: determining a temperature of a working liquid in an engine block circuit (31, 35) of the internal combustion engine (10), the working liquid comprising a cooling liquid or a lubrication liquid; operating the internal combustion engine (10); engaging a thermal load responsive to the temperature of the liquid being below a first temperature threshold, wherein engaging the thermal load comprises at least one of increasing a pumping load of the internal combustion engine (10), or changing an air/fuel ratio, thereby adding heat to the engine block circuit (31, 35); controlling the thermal load as a function of the temperature of the liquid; and disengaging at least a portion of the thermal load responsive to the temperature of the liquid being above the low temperature limit.