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.