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1. 发明申请

US20050084973A1 Diagnostic system for monitoring catalyst performance 失效
标题翻译：用于监测催化剂性能的诊断系统
公开(公告)号：US20050084973A1
公开(公告)日：2005-04-21
申请号：US10960817
申请日：2004-10-07
申请人： Owen Bailey , Jean Balland , Sergio Quelhas , Bart Schreurs
发明人： Owen Bailey , Jean Balland , Sergio Quelhas , Bart Schreurs
IPC分类号： B01D53/94 , F01N3/08 , F01N11/00 , F01N13/02 , F02D41/02 , F02D41/14 , G01N33/00
CPC分类号： F01N3/0842 , B01D53/9431 , B01D53/9495 , F01N3/0814 , F01N3/0821 , F01N11/007 , F01N13/009 , F01N2390/02 , F01N2550/02 , F01N2550/03 , F01N2550/04 , F01N2570/04 , F02D41/028 , F02D41/1439 , F02D41/1441 , F02D41/1456 , Y02T10/47 , Y10T436/177692 , Y10T436/179228 , Y10T436/18 , Y10T436/186 , Y10T436/188 , Y10T436/20 , Y10T436/204998 , Y10T436/205831 , Y10T436/208339
摘要： A diagnostic system for monitoring catalyst performance in an exhaust system comprises a plurality of treatment devices catalytically treating an exhaust gas stream, and a plurality of gas sensors for monitoring the catalyst performance of the treatment devices to determine when sulfur poisoning occurs. An on-board diagnostic system receives signals from the gas sensors, and, based upon response time differentials between sensors, determines whether the treatment devices are experiencing sulfur poisoning.
摘要翻译：用于监测排气系统中的催化剂性能的诊断系统包括多个催化处理废气流的处理装置，以及多个气体传感器，用于监测处理装置的催化剂性能，以确定何时发生硫中毒。车载诊断系统接收来自气体传感器的信号，并且基于传感器之间的响应时间差，确定处理装置是否正在经历硫中毒。

2. 发明申请

US20060053772A1 NOx adsorber diagnostics and automotive exhaust control system utilizing the same 失效
标题翻译： NOx吸附剂诊断和汽车尾气排放控制系统
公开(公告)号：US20060053772A1
公开(公告)日：2006-03-16
申请号：US10943062
申请日：2004-09-16
申请人： Danan Dou , Owen Bailey
发明人： Danan Dou , Owen Bailey
IPC分类号： F01N3/00 , F01N3/10
CPC分类号： F01N3/0842 , F01N3/0814 , F01N3/0871 , F01N3/0885 , F01N11/007 , Y02T10/47
摘要： A process for controlling an exhaust system can comprise flowing exhaust gas from the engine past a first oxygen sensor, through a NOx adsorber, past a second oxygen sensor, through a catalyst and past a third oxygen sensor, wherein the first oxygen sensor, the second oxygen sensor, and the third oxygen sensor, are in operable communication with an electronic control module, and using a switching delay between the first oxygen sensor and the second oxygen sensor to determine a NOx value, wherein the NOx value is selected from the group consisting of a NOx regeneration time, a stored NOx amount, a NOx storage efficiency, and combinations comprising at least one of the foregoing NOx values. A desulfurization process can be initiated when the NOx value is less than or equal to a first selected value. During the desulfurization process, when the third oxygen sensor signals a condition rich of stoichiometry, oxygen can be provided to the catalyst.
摘要翻译：用于控制排气系统的过程可以包括使来自发动机的废气经过第一氧传感器，通过NOx吸附器流过第二氧传感器，经过催化剂并经过第三氧传感器，其中第一氧传感器，第二氧传感器氧传感器和第三氧传感器可与电子控制模块可操作地通信，并且使用第一氧传感器和第二氧传感器之间的切换延迟来确定NO x x值，其中 NO > 值选自NO NO x x再生时间，存储的NO x x N，NO NO x， / SUB>存储效率，以及包括前述NO x x值中的至少一个的组合。当NO >小于或等于第一选定值时，可以开始脱硫过程。在脱硫过程中，当第三氧传感器发出一个充满化学计量的条件时，可向催化剂提供氧气。

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