公开(公告)号：US11046309B2

公开(公告)日：2021-06-29

申请号：US16344056

申请日：2017-10-24

Applicant: Cummins Inc.

Inventor： Apurva Arvind Chunodkar ,  Kenneth M. Follen ,  Mugdha S. Sane ,  Srinivas Chakravarthy Bathula ,  Arun Prakash Thunga Gopal ,  Vivek A. Sujan

IPC: B60W30/14 ,  B60W10/06 ,  B60W30/18 ,  F02B37/12 ,  F02D41/00 ,  F02D41/14 ,  F02D41/02 ,  F02D29/02 ,  F02D11/10 ,  B60W10/04 ,  B60W10/10 ,  F16H63/50

Abstract: One embodiment is a method of operating an electronic control system (ECS) to control an engine to propel a vehicle. The method comprises receiving a throttle command, determining an operation to increase engine cycle efficiency by reducing engine torque below a magnitude corresponding to the throttle command and below a torque curve limit over a first vehicle operation segment and permitting an increase in engine torque above the torque curve limit over a second vehicle operation segment, controlling the engine to output torque below the magnitude corresponding to the throttle command and below the torque curve limit over the first vehicle operation segment, and controlling the engine to output torque above the torque curve limit over the second vehicle operation segment in response to a second received throttle command and constrained by an extended limit on operation of the engine above the torque curve limit.

公开(公告)号：US20200340381A1

公开(公告)日：2020-10-29

申请号：US16927727

申请日：2020-07-13

Applicant: Cummins Inc.

Inventor： Bharath Sundar ,  Apurva Arvind Chunodkar ,  Michael Haas ,  Astha Kukreja

IPC: F01N3/20 ,  F01N11/00 ,  F01N3/10 ,  F01N13/00

Abstract: A system has a pump and an injector coupled to the pump. The system further comprises a controller coupled to the pump and the injector. The controller is structured to: determine a change of reductant flow relative to a change of pump rate of the pump; and generate a status command indicative of at least one of an under-restricted injector or an over-restricted injector in response to the determination of the change of reductant flow relative to the change of pump rate of the pump.

公开(公告)号：US20190263400A1

公开(公告)日：2019-08-29

申请号：US16344056

申请日：2017-10-24

Applicant: Cummins Inc.

Inventor： Apurva Arvind Chunodkar ,  Kenneth M. Follen ,  Mugdha S. Sane ,  Srinivas Chakravarthy Bathula ,  Arun Prakash Thunga Gopal ,  Vivek A. Sujan

IPC: B60W30/14 ,  B60W10/06 ,  B60W30/18 ,  F02B37/12 ,  F02D41/00 ,  F02D41/02 ,  F02D41/14

Abstract: One embodiment is a method of operating an electronic control system (ECS) to control an engine to propel a vehicle. The method comprises receiving a throttle command, determining an operation to increase engine cycle efficiency by reducing engine torque below a magnitude corresponding to the throttle command and below a torque curve limit over a first vehicle operation segment and permitting an increase in engine torque above the torque curve limit over a second vehicle operation segment, controlling the engine to output torque below the magnitude corresponding to the throttle command and below the torque curve limit over the first vehicle operation segment, and controlling the engine to output torque above the torque curve limit over the second vehicle operation segment in response to a second received throttle command and constrained by an extended limit on operation of the engine above the torque curve limit.