公开(公告)号：EP3240949A1

公开(公告)日：2017-11-08

申请号：EP15876290.6

申请日：2015-12-30

申请人： Robert Bosch GmbH

发明人： RAVI, Nikhil ,  OUDART, Joel ,  JADE, Shyam ,  SCHWANKE, Jason ,  JIANG, Li

IPC分类号： F02D43/04 ,  F02D41/26 ,  F02P5/15 ,  F02P9/00 ,  F02B11/00

CPC分类号： F02D41/3064 ,  F02D41/022 ,  F02D41/0225 ,  F02D41/3035 ,  F02D41/3041 ,  F02D41/3076 ,  F02D2200/1012

摘要： An engine system uses data associated with at least one operating condition of an engine to set the engine system to an AI mode when the engine is in an SI mode 1) within first operating condition limits, and 2) when a rate of change of a first operating condition is within rate of change limits, maintain the engine system in the SI mode when the engine is outside of first operating condition limits or when the rate of change of the first operating condition is not within rate of change limits, set the engine system to the SI mode when the engine is in the AI mode outside second operating condition limits, and maintain the engine system in the AI mode when the engine is within second operating condition limits, wherein the second operating condition limits are different from the first operating condition limits.

公开(公告)号：EP2959140A2

公开(公告)日：2015-12-30

申请号：EP14710110.9

申请日：2014-02-20

申请人： Robert Bosch GmbH

发明人： LARIMORE, Jacob ,  JIANG, Li ,  HELLSTROM, Erik ,  VANIER, Julien ,  JADE, Shyam ,  STEFANOPOULOU, Anna

IPC分类号： F02D41/00 ,  F02D35/02

CPC分类号： F02D41/0062 ,  F02D35/028 ,  G01M15/042 ,  Y02T10/128 ,  Y02T10/47

摘要： Systems and methods are described for on-line, real-time estimation of a residual mass in an engine cylinder during HCCI combustion. The residual mass is estimated based on an estimated residual mass for a previous combustion cycle. A value of a first performance variable for the first combustion cycle is determined based only on engine data measured by one or more sensors. A value of a second performance is estimated based at least in part on the estimated residual mass for the first combustion cycle. An adaptive scaling factor is determining for the first combustion cycle based on the determined value of the first performance variable and the estimated value of the second performance variable. An adjusted residual mass for the first combustion cycle is then determined based on the estimated residual mass for the first combustion cycle and the adaptive scaling factor for the first combustion cycle.

摘要翻译： 描述了系统和方法，用于在HCCI燃烧期间在线，实时估计发动机气缸中的残余质量。 基于先前燃烧循环的估计剩余质量来估计剩余质量。 仅基于由一个或多个传感器测量的发动机数据来确定用于第一燃烧循环的第一性能变量的值。 至少部分地基于第一燃烧循环的估计剩余质量来估计第二性能的值。 自适应缩放因子是基于第一性能变量的确定值和第二性能变量的估计值来确定第一燃烧循环。 然后基于第一燃烧循环的估计剩余质量和第一燃烧循环的自适应缩放因子来确定用于第一燃烧循环的经调节的残余质量。