Invention Application
- Patent Title: METHOD FOR DIAGNOSING EGR SYSTEM
- Patent Title (中): 用于诊断EGR系统的方法
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Application No.: US14026317Application Date: 2013-09-13
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Publication No.: US20140372010A1Publication Date: 2014-12-18
- Inventor: Seung Hee Han
- Applicant: Kia Motors Corp. , Hyundai Motor Company
- Applicant Address: KR Seoul KR Seoul
- Assignee: Kia Motors Corp.,Hyundai Motor Company
- Current Assignee: Kia Motors Corp.,Hyundai Motor Company
- Current Assignee Address: KR Seoul KR Seoul
- Priority: KR10-2013-0067690 20130613
- Main IPC: G01M15/10
- IPC: G01M15/10
Abstract:
A method for diagnosing an exhaust gas recirculation (EGR) system includes: a setting step of setting a temperature map with respect to a temperature at an outlet side of an EGR line for an output value reflecting a driving state of a vehicle in a state in which an EGR valve is closed; a measuring step of measuring the temperature at the outlet side of the EGR line at the time of an operation of the EGR system; and a diagnosing step of diagnosing that a fault has been generated in an EGR system when the measured temperature at the outlet side of the EGR line is equal to or less than a reference value set in the temperature map.
Public/Granted literature
- US09389144B2 Method for diagnosing EGR system Public/Granted day:2016-07-12
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