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.

公开(公告)号：US20170122182A1

公开(公告)日：2017-05-04

申请号：US14932139

申请日：2015-11-04

Applicant: GM Global Technology Operations LLC

Inventor： Eugene V. GONZE ,  Christopher H. KNIEPER ,  Vijay A. RAMAPPAN

IPC: F01P7/16 ,  F01P5/10 ,  F01P3/18

CPC classification number: F01P7/164 ,  F01P3/18 ,  F01P5/10 ,  F01P2025/32 ,  F01P2025/40 ,  F01P2025/52

Abstract: A coolant control system of a vehicle includes an adjusting module that: (i) receives an engine output coolant temperature measured at a coolant output of an internal combustion engine; (ii) adjusts the engine output coolant temperature based on a reference temperature to produce a first adjusted coolant temperature; (iii) receives an engine input coolant temperature measured at a coolant input of the internal combustion engine; and (iv) adjusts the engine input coolant temperature based on the reference temperature to produce a second adjusted coolant temperature. The coolant control system also includes a difference module that determines a difference between the first and second adjusted coolant temperatures. The coolant control system also includes a pump control module that controls a coolant output of a coolant pump based on the difference between the first and second adjusted coolant temperatures.