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.

公开(公告)号：US20230302908A1

公开(公告)日：2023-09-28

申请号：US18117293

申请日：2023-03-03

Applicant: Cummins Inc.

Inventor： Weiwen Wang ,  Martin T. Books

IPC: G01R31/00 ,  G07C5/08 ,  B60L3/00 ,  B60R16/023 ,  G01R19/165

CPC classification number: B60L3/0023 ,  B60R16/0238 ,  G01R19/16528 ,  G01R31/007 ,  G07C5/0816

Abstract: Methods and systems are provided for troubleshooting anomalies in a high-voltage bus system for an electrified vehicle are provided herein. The high-voltage bus system being electrically connected to a plurality of electrical components such that each electrical component in the plurality of electrical components has a similar voltage when the high-voltage bus system is electrified. The method includes detecting individual voltages for each electrical component in the plurality of electrical components using a voltage sensor of each of the electrical components in the plurality of electrical components; determining a baseline voltage for each of the electrical components in the plurality of electrical components, the baseline voltage corresponding to at least a subset of the individual voltages; and comparing any one of the individual voltages to the baseline voltage to determine if that individual voltage is anomalous.

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.