公开(公告)号：US20130227945A1

公开(公告)日：2013-09-05

申请号：US13860886

申请日：2013-04-11

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Brien Lloyd Fulton ,  Gopal Krishna Chamarthi ,  Dean Pennala ,  David Ives ,  David Robert Nader ,  Paul Martin Niessen ,  Jason Ronald Smith

IPC: F02B37/24

CPC classification number: F02D41/0007 ,  F01N9/002 ,  F02B37/24 ,  F02B39/16 ,  F02B2037/122 ,  F02B2037/125 ,  F02D23/00 ,  F02D41/029 ,  F02D41/1445 ,  F02D2200/0406 ,  F02D2200/703 ,  F02D2250/26 ,  Y02T10/144 ,  Y02T10/47

Abstract: A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.