公开(公告)号：US11078825B2

公开(公告)日：2021-08-03

申请号：US16589579

申请日：2019-10-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yiran Hu ,  David E. Edwards ,  Min Sun ,  Michael J. Paratore, Jr. ,  Jun Chen ,  Eugene V. Gonze ,  Sergio Quelhas

IPC: F01P7/16 ,  B60H1/00 ,  B60W20/15 ,  F02N19/10 ,  F02N19/04

Abstract: A method includes: (a) determining an engine speed of an internal combustion engine, wherein the internal combustion engine has an engine wall, and the engine wall has a wall temperature; (b) determining an engine load of the internal combustion engine; (c) determining a wall-reference temperature as a function of the engine load and the engine speed of the internal combustion engine; and (d) adjusting, using a cooling system, a volumetric flow rate of a coolant flowing through the internal combustion engine to maintain the wall temperature at the wall-reference temperature.

公开(公告)号：US10273872B2

公开(公告)日：2019-04-30

申请号：US15350595

申请日：2016-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sergio Quelhas ,  John W. Myers ,  Werner Filsinger

IPC: F02B29/04 ,  F02M31/04 ,  F02M31/07 ,  F02M31/20

Abstract: A charge air cooler (CAC) includes a first header including a first interior portion, a second header spaced from the first header. The second header includes a second interior portion. At least one conduit extends between the first header and the second header. The at least one conduit includes a first end fluidically connected to the first interior portion, a second end fluidically connected to the second interior portion, and an intermediate portion extending therebetween. A heating system is arranged in a heat exchange relationship with the at least one conduit. The heating system is selectively operable to increase a temperature of fluids passing through the at least one conduit into one of the first and second headers.

公开(公告)号：US10669922B2

公开(公告)日：2020-06-02

申请号：US14956858

申请日：2015-12-02

Applicant: GM Global Technology Operations LLC

Inventor： Eugene V. Gonze ,  Sergio Quelhas ,  Vijay A. Ramappan ,  Michael J. Paratore, Jr.

IPC: F01P7/16 ,  F01P3/22 ,  F01P5/10 ,  F01P7/14

Abstract: A control system according to the principles of the present disclosure includes an estimated coolant flow module and at least one of a valve control module and a pump control module. The estimated coolant flow module estimates a rate of coolant flow through a cooling system for an engine based on a pressure of coolant in the cooling system and a speed of a coolant pump that circulates coolant through the cooling system. The valve control module controls the position of a coolant valve based on the estimated coolant flow rate. The pump control module controls the coolant pump speed based on the estimated coolant flow rate.

公开(公告)号：US10605151B2

公开(公告)日：2020-03-31

申请号：US15178128

申请日：2016-06-09

Applicant: GM Global Technology Operations LLC

Inventor： Eugene V. Gonze ,  Sergio Quelhas ,  Vijay A. Ramappan ,  Michael J. Paratore, Jr.

IPC: F01P7/16

Abstract: A strategy for controlling an electric pump and control valve in an internal combustion engine cooling system compensates for backpressure variations and maintains system operation within design parameters. The method comprises the steps of measuring the coolant temperature, measuring the electrical current and voltage to the pump motor, determining the pump speed and coolant flow, determining the desired coolant flow, determining a negative correction to the flow control valve and pump if desired flow is less than present coolant flow and determining a positive correction to the flow control valve and pump if desired flow is more than present coolant flow and undertaking this correction to coolant flow. Thus, based upon inferred back pressure in the engine coolant system from the data relating to the pump energy input, proper coolant flow, heat rejection and engine operating temperature can be maintained in spite of variations in system flow restrictions and backpressure.

公开(公告)号：US09719389B2

公开(公告)日：2017-08-01

申请号：US14726869

申请日：2015-06-01

Applicant: GM Global Technology Operations LLC

Inventor： Amanpal S. Grewal ,  Sergio Quelhas

IPC: F01N3/18 ,  F01N3/20 ,  F02M26/15 ,  F02M26/32 ,  F01N3/10 ,  F02D41/02 ,  F02D9/04 ,  F02D41/06 ,  F02D41/00 ,  F02D21/08 ,  F01N9/00 ,  F02M26/28 ,  F01N3/023 ,  F01N11/00 ,  F01N1/18 ,  F02M26/10 ,  F02D13/02

CPC classification number: F01N3/2006 ,  F01N1/18 ,  F01N3/0235 ,  F01N3/10 ,  F01N9/00 ,  F01N9/005 ,  F01N11/002 ,  F01N11/005 ,  F01N2240/02 ,  F01N2240/20 ,  F01N2240/36 ,  F01N2260/14 ,  F01N2340/02 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2900/0422 ,  F01N2900/0601 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1406 ,  F01N2900/1602 ,  F01N2900/1626 ,  F02D9/04 ,  F02D21/08 ,  F02D41/0055 ,  F02D41/0245 ,  F02D41/0255 ,  F02D41/064 ,  F02D2013/0292 ,  F02M26/10 ,  F02M26/15 ,  F02M26/28 ,  F02M26/32 ,  Y02T10/16 ,  Y02T10/26 ,  Y02T10/47

Abstract: A system according to the principles of the present disclosure includes an engine start module and an exhaust throttle valve control module. The engine start module determines when an engine is started based on at least one of an input from an ignition system and the speed of the engine. The exhaust throttle valve control module selectively fully closes an exhaust throttle valve in an exhaust system of the engine when the engine is started to trap exhaust gas in the exhaust system.

公开(公告)号：US20210040877A1

公开(公告)日：2021-02-11

申请号：US16531754

申请日：2019-08-05

Applicant: GM Global Technology Operations LLC

Inventor： Michael A. Smith ,  Scott K. Wilson ,  Eugene V. Gonze ,  James B. Hicks ,  Sergio Quelhas ,  Anthony J. Corsetti

IPC: F01P5/12 ,  F04D15/00 ,  F01P7/16

Abstract: The present disclosure provides an engine cooling system for controlling the temperature of an engine of a motor vehicle. The system includes an engine cooling circuit for circulating a coolant to transfer heat from the engine to an airflow. An electric water pump is configured to circulate the coolant through the circuit at a maximum electric pump flow rate, and a mechanical water pump is configured to circulate the coolant through the circuit at a maximum mechanical pump flow rate that is higher than the maximum electric pump flow rate. The circuit further includes a selector valve configured to fluidly connect one of the electric water pump and the mechanical water pump to the engine. An engine control module generates a valve signal for actuating the selector valve to fluidly connect one of the electric water pump and the mechanical water pump to the engine.

公开(公告)号：US10895192B1

公开(公告)日：2021-01-19

申请号：US16531754

申请日：2019-08-05

Applicant: GM Global Technology Operations LLC

Inventor： Michael A. Smith ,  Scott K. Wilson ,  Eugene V. Gonze ,  James B. Hicks ,  Sergio Quelhas ,  Anthony J. Corsetti

IPC: F02P5/12 ,  F01P5/12 ,  F04D15/00 ,  F01P7/16 ,  F01P7/14 ,  F01P3/02

Abstract: The present disclosure provides an engine cooling system for controlling the temperature of an engine of a motor vehicle. The system includes an engine cooling circuit for circulating a coolant to transfer heat from the engine to an airflow. An electric water pump is configured to circulate the coolant through the circuit at a maximum electric pump flow rate, and a mechanical water pump is configured to circulate the coolant through the circuit at a maximum mechanical pump flow rate that is higher than the maximum electric pump flow rate. The circuit further includes a selector valve configured to fluidly connect one of the electric water pump and the mechanical water pump to the engine. An engine control module generates a valve signal for actuating the selector valve to fluidly connect one of the electric water pump and the mechanical water pump to the engine.

公开(公告)号：US20180135508A1

公开(公告)日：2018-05-17

申请号：US15350595

申请日：2016-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sergio Quelhas ,  John W. Myers ,  Werner Filsinger

IPC: F02B29/04 ,  F02M31/07 ,  F02M31/04 ,  F02M31/20

CPC classification number: F02B29/0425 ,  F02M31/042 ,  F02M31/07 ,  F02M31/205 ,  Y02T10/126 ,  Y02T10/146

Abstract: A charge air cooler (CAC) includes a first header including a first interior portion, a second header spaced from the first header. The second header includes a second interior portion. At least one conduit extends between the first header and the second header. The at least one conduit includes a first end fluidically connected to the first interior portion, a second end fluidically connected to the second interior portion, and an intermediate portion extending therebetween. A heating system is arranged in a heat exchange relationship with the at least one conduit. The heating system is selectively operable to increase a temperature of fluids passing through the at least one conduit into one of the first and second headers.

公开(公告)号：US20170362995A1

公开(公告)日：2017-12-21

申请号：US15440661

申请日：2017-02-23

Applicant: GM Global Technology Operations LLC

Inventor： William C. Saindon ,  Sergio Quelhas ,  Werner Filsinger ,  Eric A. Weir ,  John W. Myers ,  Kai Becker

IPC: F02B29/04 ,  B60K13/02 ,  F02D9/10 ,  F02M35/10

CPC classification number: F02B29/0418 ,  B60K13/02 ,  B60Y2400/435 ,  F02B29/0493 ,  F02D9/10 ,  F02M35/10157 ,  Y02T10/144 ,  Y02T10/146

Abstract: A vehicle having an air intake system includes a charge air cooler, an intake duct, an outlet duct, and a bypass duct. The charge air cooler has a charge air inlet that is disposed at a first end of a charge air cooler core and a charge air outlet that is disposed at a second end of the charge air cooler core. The intake duct extends between an outlet of a turbocharger and the charge air inlet. The outlet duct extends between the charge air outlet and a throttle body having a throttle body valve that is operatively connected to an engine intake manifold. The bypass duct has a bypass valve. The bypass duct is connected to the charge air inlet and the charge air outlet. The bypass valve is configured to selectively facilitate bypass flow through the bypass duct.

公开(公告)号：US11434810B2

公开(公告)日：2022-09-06

申请号：US17167676

申请日：2021-02-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael A. Smith ,  Eugene V. Gonze ,  Daniel L. Molnar ,  Sergio Quelhas

IPC: F01P7/16 ,  F01P7/14

Abstract: A system includes a coolant pump and a first rotary valve. The coolant pump is configured to be mechanically driven by an engine and to send coolant to an inlet of the engine. The first rotary valve is configured to receive coolant from an outlet of the engine and to send coolant to a first radiator and a heater core. The first rotary valve is adjustable to a zero flow position to prevent coolant flow to the first radiator and the heater core and thereby increase a rate at which the engine warms coolant flowing therethrough.