公开(公告)号：US20170037786A1

公开(公告)日：2017-02-09

申请号：US14820409

申请日：2015-08-06

Applicant: Ford Global Technologies, LLC

Inventor： Philip Andrew Fabien ,  Stephen George Russ ,  Michael A. Mancini ,  Jonathan Cherry

IPC: F02D9/02 ,  F02D41/02 ,  F02D13/02 ,  F01N3/021 ,  F01N11/00 ,  F02D41/14 ,  F02D41/00 ,  F02B37/18

CPC classification number: F02D9/02 ,  F01N3/021 ,  F01N11/002 ,  F01N2260/14 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2560/08 ,  F01N2900/1404 ,  F01N2900/1406 ,  F01N2900/1411 ,  F02B37/18 ,  F02B37/183 ,  F02B37/225 ,  F02D13/0261 ,  F02D41/0007 ,  F02D41/1448 ,  F02D41/145 ,  F02D41/18 ,  F02D2009/0228 ,  F02D2041/001 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0812 ,  F02D2200/501 ,  Y02T10/144

Abstract: Methods and systems are provided for mitigating excessive exhaust pressures in an engine. In one example, a method may include adjusting an intake throttle responsive to exhaust pressure upstream of an exhaust turbine being higher than a threshold without reducing boost level. In this way, boost pressures may be maintained while reducing exhaust pressures.

Abstract translation: 提供了减轻发动机过度排气压力的方法和系统。 在一个示例中，方法可以包括响应于排气涡轮机上游的排气压力而调节进气门槛高于阈值而不降低增压水平。 以这种方式，可以在减少排气压力的同时保持增压压力。

公开(公告)号：US10119479B2

公开(公告)日：2018-11-06

申请号：US14820409

申请日：2015-08-06

Applicant: Ford Global Technologies, LLC

Inventor： Philip Andrew Fabien ,  Stephen George Russ ,  Michael A. Mancini ,  Jonathan Cherry

IPC: F02B37/00 ,  F02B37/12 ,  F02D9/02 ,  F02D13/02 ,  F01N3/021 ,  F02D41/00 ,  F02B37/18 ,  F02B37/22 ,  F02D41/14 ,  F02D41/18 ,  F01N11/00

Abstract: Methods and systems are provided for mitigating excessive exhaust pressures in an engine. In one example, a method may include adjusting an intake throttle responsive to exhaust pressure upstream of an exhaust turbine being higher than a threshold without reducing boost level. In this way, boost pressures may be maintained while reducing exhaust pressures.