公开(公告)号：US09779218B2

公开(公告)日：2017-10-03

申请号：US13985923

申请日：2012-02-07

申请人： Marc Hehle ,  Ralf Müller ,  Jens Niemeyer ,  Jörg Remele ,  Guido Schäffner ,  Holger Sinzenich ,  Tim Späder

发明人： Marc Hehle ,  Ralf Müller ,  Jens Niemeyer ,  Jörg Remele ,  Guido Schäffner ,  Holger Sinzenich ,  Tim Späder

IPC分类号： G06F19/00 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00

CPC分类号： G06F19/701 ,  F01N3/208 ,  F01N9/005 ,  F01N11/005 ,  F01N2900/0406 ,  F01N2900/1602 ,  F02D2200/0804 ,  Y02T10/24 ,  Y02T10/47

摘要： In a method for a model-based determination of a temperature distribution of an exhaust gas post-treatment unit, a differentiation is made between steady operating states and non-steady operating states by taking into account the axial and the radial temperature distribution, and, on the basis of virtual segmentation of the post-treatment unit, in particular the radial heat transfer to the surroundings is taken into account in the model-based determination for steady operating states, and for non-steady operating states the heat transfer from the exhaust gas which flows axially through the post-treatment unit to the segments is taken into account by a heat transfer coefficient k.

公开(公告)号：US20140032189A1

公开(公告)日：2014-01-30

申请号：US13985923

申请日：2012-02-07

申请人： Marc Hehle ,  Ralf Müller ,  Jens Niemeyer ,  Jörg Remele ,  Guido Schäffner ,  Holger Sinzenich ,  Tim Späder

发明人： Marc Hehle ,  Ralf Müller ,  Jens Niemeyer ,  Jörg Remele ,  Guido Schäffner ,  Holger Sinzenich ,  Tim Späder

IPC分类号： G06F19/00

CPC分类号： G06F19/701 ,  F01N3/208 ,  F01N9/005 ,  F01N11/005 ,  F01N2900/0406 ,  F01N2900/1602 ,  F02D2200/0804 ,  Y02T10/24 ,  Y02T10/47

摘要： In a method for a model-based determination of a temperature distribution of an exhaust gas post-treatment unit, a differentiation is made between steady operating states and non-steady operating states by taking into account the axial and the radial temperature distribution, and, on the basis of virtual segmentation of the post-treatment unit, in particular the radial heat transfer to the surroundings is taken into account in the model-based determination for steady operating states, and for non-steady operating states the heat transfer from the exhaust gas which flows axially through the post-treatment unit to the segments is taken into account by a heat transfer coefficient k.

摘要翻译： 在用于基于模型的废气后处理单元的温度分布的确定方法中，通过考虑轴向和径向温度分布来区分稳定运行状态和非稳定运行状态， 在后处理单元的虚拟分割的基础上，特别是在基于模型的稳定运行状态的确定中考虑到周围的径向热传递，并且对于非稳定运行状态，来自排气的热传递 通过传热系数k考虑通过后处理单元轴向流到段的气体。