公开(公告)号：US08347855B2

公开(公告)日：2013-01-08

申请号：US12779578

申请日：2010-05-13

Applicant: Norman Schoenek ,  Michael G. Reynolds ,  Amin Abboud ,  Gary E. McGee ,  Douglas R. Verner ,  Sharon Liu

Inventor： Norman Schoenek ,  Michael G. Reynolds ,  Amin Abboud ,  Gary E. McGee ,  Douglas R. Verner ,  Sharon Liu

IPC: F02D1/00

CPC classification number: F02D41/042 ,  F02N11/0818 ,  F02N11/084 ,  F02N11/0855 ,  Y02T10/48

Abstract: A control system for an engine includes a stop-start initiation module and a load control module. The stop-start initiation module shuts down the engine in response to an engine shutdown request. The load control module, in response to the engine shutdown request, increases a rate at which a rotational speed of the engine decreases during engine shutdown by increasing a rotational load input to the engine by an engine accessory coupled to a crankshaft of the engine. A method for an engine includes shutting down the engine in response to an engine shutdown request. The method further includes increasing, in response to the engine shutdown request, a rate at which a rotational speed of the engine decreases during engine shutdown by increasing a rotational load input to the engine by an engine accessory coupled to a crankshaft of the engine.

Abstract translation: 用于发动机的控制系统包括停止启动启动模块和负载控制模块。 停机启动启动模块根据引擎关机请求关闭引擎。 负载控制模块响应于发动机停机请求，通过增加通过联接到发动机的曲轴的发动机附件将输入到发动机的转动负载增加，引擎停机期间发动机转速降低的速率增加。 发动机的方法包括响应于发动机关闭请求来关闭发动机。 该方法还包括响应于发动机停机请求，增加在发动机关闭期间发动机转速降低的速率，其通过联接到发动机的曲轴的发动机附件增加输入到发动机的转动负载。

公开(公告)号：US20110005202A1

公开(公告)日：2011-01-13

申请号：US12578899

申请日：2009-10-14

Applicant: Kevin Andrew Gady ,  Amin Abboud

Inventor： Kevin Andrew Gady ,  Amin Abboud

IPC: F01N11/00 ,  F01N3/20

CPC classification number: F01N3/208 ,  F01N9/00 ,  F01N11/00 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2900/0404 ,  F01N2900/1616 ,  Y02T10/24 ,  Y02T10/47

Abstract: A system includes a filtering module that filters a first signal that indicates an amount of nitrogen oxides (NOx) in exhaust gas upstream from a catalyst, and that filters a second signal that indicates amounts of NOx and ammonia (NH3) in exhaust gas downstream from the catalyst. A slip determination module determines whether NH3 is present in exhaust gas downstream from the catalyst based on a frequency response of the first and second signals.

Abstract translation: 一种系统包括过滤模块，其过滤表示在催化剂上游排气中的氮氧化物（NO x）量的第一信号，并且将排放气体中的NOx和氨（NH 3）的量的第二信号过滤掉 催化剂。 滑移确定模块基于第一和第二信号的频率响应来确定NH 3是否存在于催化剂下游的废气中。