发明申请
US20090126344A1 Method and Device for Determining an Oxygen Storage Capacity of a Catalytic Converter of an Internal Combustion Engine and Method and Device for Determining a Dynamic Time Duration for Exhaust Probes of an Internal Combustion Engine
有权
用于确定内燃机的催化转化器的储氧能力的方法和装置以及用于确定内燃机排气探测器的动态时间持续时间的方法和装置
- 专利标题： Method and Device for Determining an Oxygen Storage Capacity of a Catalytic Converter of an Internal Combustion Engine and Method and Device for Determining a Dynamic Time Duration for Exhaust Probes of an Internal Combustion Engine
- 专利标题（中）： 用于确定内燃机的催化转化器的储氧能力的方法和装置以及用于确定内燃机排气探测器的动态时间持续时间的方法和装置
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申请号： US11921380申请日： 2006-05-10
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公开(公告)号： US20090126344A1公开(公告)日： 2009-05-21
- 发明人: Tino Arlt , Rosel Gerd
- 申请人： Tino Arlt , Rosel Gerd
- 申请人地址： DE Regensburg
- 专利权人： Siemens VDO Automotive AG
- 当前专利权人： Siemens VDO Automotive AG
- 当前专利权人地址： DE Regensburg
- 优先权： DE102005024872.1 20050531
- 国际申请： PCT/EP2006/062212 WO 20060510
- 主分类号： F01N11/00
- IPC分类号： F01N11/00
摘要：
An exhaust gas catalytic converter is laden with oxygen until it is saturated at least upstream of an exhaust gas probe. A predefined first rich air/fuel ration is set in a combustion chamber of a cylinder. A first oxygen storage capacity value is determined as a function of the measurement signal of an exhaust gas probe and the predefined first rich air/fuel ratio. The exhaust gas catalytic converter is laden with oxygen until it is saturated. A predefined second rich air/fuel ration is set in the combustion chamber of the cylinder. A second oxygen storage capacity value is determined as a function of the measurement signal of the exhaust gas probe and the predefined second rich air/fuel ration. A corrected oxygen storage capacity value is determined as a function of the first and second oxygen storage capacity values.
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