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.

公开(公告)号：US20220268197A1

公开(公告)日：2022-08-25

申请号：US17184886

申请日：2021-02-25

Applicant: GM Global Technology Operations LLC

Inventor： Michael A. Smith ,  Robert Gallon ,  Andrew A. Raftopoulos ,  Eugene V. Gonze ,  Bryan K. Pryor ,  Sergio Quelhas

IPC: F01P3/06 ,  F01M11/00

Abstract: A method for thermal management of a motor vehicle engine includes one or more of the following: determining a current lube oil temperature; determining a lube oil temperature for optimal friction; turning on piston cooling jets based on the current lube oil temperature and the lube oil temperature for optimal friction; and turning off the piston cooling jets.

公开(公告)号：US11415040B1

公开(公告)日：2022-08-16

申请号：US17184886

申请日：2021-02-25

Applicant: GM Global Technology Operations LLC

Inventor： Michael A. Smith ,  Robert Gallon ,  Andrew A. Raftopoulos ,  Eugene V. Gonze ,  Bryan K. Pryor ,  Sergio Quelhas

IPC: F01P3/06 ,  F01M11/00 ,  F01P3/08 ,  F01P3/00

Abstract: A method for thermal management of a motor vehicle engine includes one or more of the following: determining a current lube oil temperature; determining a lube oil temperature for optimal friction; turning on piston cooling jets based on the current lube oil temperature and the lube oil temperature for optimal friction; and turning off the piston cooling jets.

公开(公告)号：US11313291B2

公开(公告)日：2022-04-26

申请号：US16983375

申请日：2020-08-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew A. Raftopoulos ,  Michael A. Smith ,  Christopher E. Whitney ,  Nathan M. Picot ,  Craig E. Slepicka ,  Robert Gallon ,  Darrell W. Burleigh ,  Vijay A. Ramappan

IPC: F02D41/00 ,  F02M25/08 ,  F02D41/14 ,  F02D9/02 ,  F02D13/02 ,  F02M26/05 ,  F02D41/12 ,  F02B29/04

Abstract: An engine system includes: a first throttle valve; a turbocharger compressor disposed downstream of the first throttle valve; a charge air cooler disposed downstream of the turbocharger compressor; a second throttle valve located downstream of the turbocharger compressor; a purge inlet located downstream of the first throttle valve and configured to introduce fuel vapor from a fuel tank into intake air; and an engine control module configured to: maintain the first throttle valve in a fully open position; and selectively close the first throttle valve relative to the fully open position in response to receipt of a request to at least one of: purge fuel vapor from the fuel tank; and at least one of decrease and prevent icing of the charge air cooler.

公开(公告)号：US11156179B1

公开(公告)日：2021-10-26

申请号：US17038420

申请日：2020-09-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew A. Raftopoulos ,  Michael A. Smith ,  Robert Gallon ,  Pratap S. Murthy ,  Scott T. Feldmann

IPC: F02D41/12 ,  F01L1/04 ,  F02D41/38 ,  F02D13/02 ,  F02D41/14 ,  F01L5/00 ,  F01L1/047

Abstract: A system includes a fuel control module and a valve control module. The fuel control module controls a fuel injector to stop fuel delivery to each cylinder of an engine in a vehicle when the vehicle is decelerating. The valve control module controls a valve actuator to actuate intake and exhaust valves of each cylinder of the engine between open and closed positions when fuel delivery to each cylinder of the engine is stopped. The valve control module controls the valve actuator to adjust an amount of airflow through each cylinder of the engine to a minimum amount when fuel delivery to each cylinder of the engine is initially stopped. The valve control module controls the valve actuator to adjust the amount of airflow through each cylinder of the engine to an amount greater than the minimum amount before fuel delivery to each cylinder of the engine is restarted.

公开(公告)号：US20210206229A1

公开(公告)日：2021-07-08

申请号：US16736177

申请日：2020-01-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael A. Smith ,  Eugene V. Gonze ,  Sergio Quelhas ,  Michael J. Paratore, JR. ,  Richard J. Lopez

IPC: B60H1/00

Abstract: A system for controlling fluid temperature includes a heat source, a heat sink coupled to the heat source such that a flow of coolant passes between the heat source and the heat sink, a first heat exchanger coupled to the heat source, a second heat exchanger coupled to the heat source, a valve coupled to the heat source, the first heat exchanger, the second heat exchanger, and the heat sink, the valve configured to regulate the flow of coolant between the heat source, the first heat exchanger, the second heat exchanger, and the heat sink, and a controller in electronic communication with the heat source and the valve. The controller is configured to determine an operating condition and generate a control signal to control the valve to direct the flow of coolant to one or more of the first and second heat exchangers and the heat source.

公开(公告)号：US20210156324A1

公开(公告)日：2021-05-27

申请号：US16696134

申请日：2019-11-26

Applicant: GM Global Technology Operations LLC

Inventor： Robert Gallon ,  Michael A. Smith ,  Matt Pedigo

IPC: F02D41/12 ,  F02D41/14 ,  F02D13/02 ,  F02D9/02

Abstract: A control system for a fuel cutoff system of a motor vehicle includes a fuel cutoff module that generates a fuel cutoff signal for disabling a supply of fuel to an engine, in response to the fuel cutoff module detecting a deceleration fuel cutoff (DFCO) event. The control system further includes an oxygen storage module determining an amount of oxygen accumulated in a catalyst and comparing this amount to an oxygen storage capacity (OSC) of the catalyst, in response to the fuel cutoff module determining the DFCO event. The control system further includes an intake valve timing module generating a phasing signal to actuate a plurality of cam phasers to reduce a flow rate of oxygen to the catalyst, in response to the fuel cutoff module determining the DFCO event and the oxygen storage module determining that the amount of oxygen stored in the catalyst is less than the OSC.

公开(公告)号：US10975857B2

公开(公告)日：2021-04-13

申请号：US16570579

申请日：2019-09-13

Applicant: GM Global Technology Operations LLC

Inventor： Michael A. Smith ,  Eugene V. Gonze ,  Eric E. Klauser ,  Christopher H. Knieper

IPC: F04B49/00 ,  F01P7/14 ,  F04B23/04

Abstract: A method of diagnosing a mechanical coolant pump in an automobile equipped with cooling system having a mechanical coolant pump and an electric coolant pump comprises detecting when an engine of the automobile has been started, dis-engaging the electric coolant pump, engaging the mechanical coolant pump, and verifying the mechanical coolant pump is operating properly.

公开(公告)号：US20210079912A1

公开(公告)日：2021-03-18

申请号：US16570579

申请日：2019-09-13

Applicant: GM Global Technology Operations LLC

Inventor： Michael A. Smith ,  Eugene V. Gonze ,  Eric E. Klauser ,  Christopher H. Knieper

IPC: F04B49/00 ,  F01P7/14 ,  F04B23/04

Abstract: A method of diagnosing a mechanical coolant pump in an automobile equipped with cooling system having a mechanical coolant pump and an electric coolant pump comprises detecting when an engine of the automobile has been started, dis-engaging the electric coolant pump, engaging the mechanical coolant pump, and verifying the mechanical coolant pump is operating properly.

公开(公告)号：US20210033016A1

公开(公告)日：2021-02-04

申请号：US16526357

申请日：2019-07-30

Applicant: GM Global Technology Operations LLC

Inventor： Michael A. Smith ,  Martino A. Casetti ,  Michael Kaczmar ,  Scott R. Jeffrey

IPC: F01N11/00 ,  F02D41/00

Abstract: A method for operating an exhaust gas recirculation system using rationality diagnostics for an automobile vehicle includes: estimating an oxygen storage content (OSC) of a catalytic converter of a vehicle; comparing an amount of oxygen stored in the catalytic converter to an OSC threshold; initiating a closed oxygen storage control (COSC) event for a predetermined one of multiple cylinders of an engine of a vehicle if the OSC threshold is met or exceeded, the COSC event targeting a rich air-fuel equivalence ratio (EQR) for the predetermined one of the multiple cylinders; and directing a fuel injector communicating with the predetermined one of the multiple cylinders to operate the predetermined one of the multiple cylinders at the rich EQR.