Invention Grant
US07926333B2 Method for determining the oxygen storage capacity of a catalytic converter for a motor vehicle as well as an associated measuring device
有权
用于确定用于机动车辆的催化转化器的氧气存储容量的方法以及相关联的测量装置
- Patent Title: Method for determining the oxygen storage capacity of a catalytic converter for a motor vehicle as well as an associated measuring device
- Patent Title (中): 用于确定用于机动车辆的催化转化器的氧气存储容量的方法以及相关联的测量装置
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Application No.: US12332509Application Date: 2008-12-11
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Publication No.: US07926333B2Publication Date: 2011-04-19
- Inventor: Bodo Odendall
- Applicant: Bodo Odendall
- Applicant Address: DE Ingolstadt
- Assignee: Audi AG
- Current Assignee: Audi AG
- Current Assignee Address: DE Ingolstadt
- Agency: Novak Druce + Quigg LLP
- Priority: DE102007059772 20071212
- Main IPC: G01M15/10
- IPC: G01M15/10
Abstract:
Method for determining the oxygen storage capacity of a catalytic converter for a motor vehicle using the signals of an oxygen probe upstream and an oxygen probe downstream from the catalytic converter which has the following steps of determining of a delay time which is dependent on the oxygen storage capacity between the signal of the oxygen probe upstream and the signal of the oxygen probe downstream from the catalytic converter, determining of the phase shift which is dependent on the oxygen probe dynamics between the signal of the oxygen probe upstream and the signal of the oxygen probe downstream from the catalytic converter, and correcting the determined delay time between the signal of the oxygen probe upstream and the signal of the oxygen probe downstream from the catalytic converter by a determined phase shift.
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