公开(公告)号：US20220243642A1

公开(公告)日：2022-08-04

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

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：US20220099014A1

公开(公告)日：2022-03-31

申请号：US17032924

申请日：2020-09-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Richard J. LOPEZ ,  Michael A. SMITH ,  Eugene V. GONZE ,  David E. EDWARDS ,  Michael J. PARATORE, JR.

IPC: F01P3/02 ,  F01P7/16 ,  F02D1/02

Abstract: An engine control system for an engine includes: a pump control module configured to control a coolant pump; a block control module configured to control opening of a block valve; a fuel control module configured to control fueling of the engine; a coolant control module configured to control a position of a coolant valve; and an adjustment module configured to, when the coolant pump is pumping, the block valve is open, and the coolant valve is positioned such that an input is connected to an output, adjust the fueling of the engine such that fueling of the engine is fuel rich.

公开(公告)号：US20220034269A1

公开(公告)日：2022-02-03

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 ,  F02D13/02

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.