公开(公告)号：US20170002752A1

公开(公告)日：2017-01-05

申请号：US15267857

申请日：2016-09-16

Applicant: Cummins Inc.

Inventor： John N. Chi ,  John M. Mulloy ,  Siriram S. Popuri

IPC: F02D23/00 ,  G01F1/00 ,  F02B37/00 ,  G01P3/26 ,  F02D41/18 ,  F02D28/00

CPC classification number: F02D23/00 ,  F02B29/04 ,  F02B37/00 ,  F02D23/005 ,  F02D28/00 ,  F02D41/0007 ,  F02D41/18 ,  F02D2041/1433 ,  F02D2200/0406 ,  F02D2200/0414 ,  G01F1/00 ,  G01P3/00 ,  G01P3/26 ,  Y02T10/144

Abstract: A system and method are provided for estimating the operating speed of a turbocharger. A first pressure value corresponds to pressure at or near the air inlet of the compressor, and a second pressure value corresponds to pressure at or near the air outlet of the compressor. A temperature value corresponds to a temperature at or near the air inlet of the compressor, and a flow rate value corresponds to a flow rate of air entering the air inlet of the compressor. The operating speed of the turbocharger is estimated as a function of the first pressure value, the second pressure value, the temperature value and the flow rate value.

Abstract translation: 提供了一种用于估计涡轮增压器的操作速度的系统和方法。 第一压力值对应于压缩机空气入口处或附近的压力，第二压力值对应于压缩机的空气出口处或附近的压力。 温度值对应于压缩机空气入口处或附近的温度，流量值对应于进入压缩机进气口的空气流量。 估计涡轮增压器的运行速度是第一压力值，第二压力值，温度值和流量值的函数。