公开(公告)号：US20240068882A1

公开(公告)日：2024-02-29

申请号：US17893345

申请日：2022-08-23

Applicant: Shu S. Wang ,  David A. Lawrence ,  Michael Barkey

Inventor： Shu S. Wang ,  David A. Lawrence ,  Michael Barkey

IPC: G01K7/16 ,  B60R16/03 ,  B60W20/50

CPC classification number: G01K7/16 ,  B60R16/03 ,  B60W20/50 ,  B60W2510/0676 ,  B60W2510/068 ,  B60W2510/087 ,  B60W2520/10 ,  B60W2555/20

Abstract: A system and method of controlling a powertrain to protect a high voltage cable by determining a temperature characteristic for a busbar, determining a temperature characteristic adjacent to a component, and determining a current through the high voltage cable. Thereafter, the method reduces an operating characteristic of the powertrain based on the temperature characteristic for the busbar, the temperature characteristic adjacent to the component, and the current.

公开(公告)号：US20200158051A1

公开(公告)日：2020-05-21

申请号：US16676609

申请日：2019-11-07

Applicant: Tyler Tutton ,  William P. Attard ,  Michael Barkey

Inventor： Tyler Tutton ,  William P. Attard ,  Michael Barkey

IPC: F02M26/08 ,  F02D41/00 ,  F02D9/08 ,  F02M26/48 ,  F02M35/10 ,  F02B37/00 ,  F02B75/18 ,  F02B37/18 ,  F02M26/43 ,  F02M26/23

Abstract: Techniques for controlling a forced-induction engine having a low pressure exhaust gas recirculation (LPEGR) system comprise determining a desired differential pressure (dP) at an inlet of a boost device based on an engine mass air flow (MAF) and a speed of the engine, wherein the engine further comprises a dP valve disposed upstream from an EGR port and a throttle valve disposed downstream from the boost device, determining a desired EGR mass fraction based on at least the engine MAF and the engine speed, determining a maximum throttle inlet pressure (TIP) based on the engine speed, the desired EGR mass fraction, and a barometric pressure, and performing coordinated control of the dP valve and the throttle valve based on the desired dP and the maximum TIP, respectively, thereby extending EGR operability to additional engine speed/load regions and increasing engine efficiency.

公开(公告)号：US10823120B2

公开(公告)日：2020-11-03

申请号：US16676609

申请日：2019-11-07

Applicant: Tyler Tutton ,  William P Attard ,  Michael Barkey

Inventor： Tyler Tutton ,  William P Attard ,  Michael Barkey

IPC: F02M26/06 ,  F02M26/08 ,  F02D9/08 ,  F02M26/48 ,  F02M35/10 ,  F02B37/00 ,  F02B75/18 ,  F02B37/18 ,  F02M26/43 ,  F02M26/23 ,  F02D41/00 ,  F02D9/02

Abstract: Techniques for controlling a forced-induction engine having a low pressure exhaust gas recirculation (LPEGR) system comprise determining a desired differential pressure (dP) at an inlet of a boost device based on an engine mass air flow (MAF) and a speed of the engine, wherein the engine further comprises a dP valve disposed upstream from an EGR port and a throttle valve disposed downstream from the boost device, determining a desired EGR mass fraction based on at least the engine MAF and the engine speed, determining a maximum throttle inlet pressure (TIP) based on the engine speed, the desired EGR mass fraction, and a barometric pressure, and performing coordinated control of the dP valve and the throttle valve based on the desired dP and the maximum TIP, respectively, thereby extending EGR operability to additional engine speed/load regions and increasing engine efficiency.

公开(公告)号：US12292341B2

公开(公告)日：2025-05-06

申请号：US17893345

申请日：2022-08-23

Applicant: Shu S Wang ,  David A Lawrence ,  Michael Barkey

Inventor： Shu S Wang ,  David A Lawrence ,  Michael Barkey

IPC: G01K7/16 ,  B60R16/03 ,  B60W20/50

Abstract: A system and method of controlling a powertrain to protect a high voltage cable by determining a temperature characteristic for a busbar, determining a temperature characteristic adjacent to a component, and determining a current through the high voltage cable. Thereafter, the method reduces an operating characteristic of the powertrain based on the temperature characteristic for the busbar, the temperature characteristic adjacent to the component, and the current.

公开(公告)号：US20220381189A1

公开(公告)日：2022-12-01

申请号：US17330627

申请日：2021-05-26

Applicant: Amit Shrestha ,  Fadi Estefanous ,  Lurun Zhong ,  Michael Barkey ,  Benjamin T Dean ,  Ethan E Bayer

Inventor： Amit Shrestha ,  Fadi Estefanous ,  Lurun Zhong ,  Michael Barkey ,  Benjamin T Dean ,  Ethan E Bayer

IPC: F02D13/02 ,  F02D41/14 ,  F02D41/06 ,  F02D41/04

Abstract: A stop/start system and method for an engine of a vehicle include a valve control system configured for full lift control of respective intake and exhaust valves of a plurality of cylinders of the engine and a controller of the engine configured to perform an engine stop event including initiating a fuel shutoff (FSO) event whereby fueling to the engine is disabled and the engine fully stops after a stop period and, in response to initiating the FSO event, commanding the valve control system to close each intake valve prior to closing its respective exhaust valve to (i) expel any residual gases from the cylinders during respective exhaust strokes prior to closing the respective exhaust valves, and (ii) prevent air-only intake and compression within the cylinders during the stop period to thereby mitigate or eliminate noise/vibration/harshness (NVH) caused by the air-only intake and compression.