Invention Grant
- Patent Title: Method for assessing a condition of a particulate filter and exhaust system for a motor vehicle
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Application No.: US16628515Application Date: 2018-06-12
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Publication No.: US10933363B2Publication Date: 2021-03-02
- Inventor: Klaus Wunderlich , Werner Sauter , Rosario Pepe , Michael Scholz , Judith Baehr , Julius Schwaab , Ramakrishnan Rajagopal
- Applicant: Daimler AG
- Applicant Address: DE Stuttgart
- Assignee: Daimler AG
- Current Assignee: Daimler AG
- Current Assignee Address: DE Stuttgart
- Agency: Crowell & Moring LLP
- Priority: DE102017006400 20170706
- International Application: PCT/EP2018/065416 WO 20180612
- International Announcement: WO2019/007639 WO 20190110
- Main IPC: B01D46/00
- IPC: B01D46/00 ; B01D46/44 ; F01N11/00

Abstract:
In a method for assessing a condition of a particulate filter for use in an internal combustion engine of a motor vehicle, a difference between a pressure exerted on the input side of the particulate filter and a pressure exerted on the output side of the particulate filter is recorded by a differential pressure sensor. The difference in pressure is taken into account when assessing the condition. Furthermore, the pressure exerted on the output side of the particulate filter in relation to the atmospheric pressure is recorded by a relative pressure sensor. When assessing the condition of the particulate filter, the pressure recorded by the relative pressure sensor is also taken into account. A frequency of changes in pressure and/or an amplitude load of the pressure is assessed. The invention also relates to an exhaust system for a motor vehicle.
Public/Granted literature
- US20200155993A1 Method for Assessing a Condition of a Particulate Filter and Exhaust System for a Motor Vehicle Public/Granted day:2020-05-21
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