Invention Grant
- Patent Title: Method for reducing cylinder air-fuel ratio imbalance
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Application No.: US15052688Application Date: 2016-02-24
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Publication No.: US09885305B2Publication Date: 2018-02-06
- Inventor: Hassene Jammoussi , Imad Hassan Makki , Robert Roy Jentz , Michael Igor Kluzner
- Applicant: Ford Global Technologies, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: McCoy Russell LLP
- Agent Julia Voutyras
- Main IPC: F02D41/14
- IPC: F02D41/14 ; F02B75/18 ; F02D41/00 ; F02D41/26 ; F02D43/04 ; F02P5/15 ; F02D41/20 ; F02D41/28
Abstract:
Methods and systems are described for monitoring air/fuel imbalance in cylinders of an engine. Engine speed signals are sampled and then run through a notch filter set to the sampling frequency. Based on a first frequency content of the resulting filtered engine speed, cylinder imbalance is detected and addressed.
Public/Granted literature
- US20170241369A1 METHOD FOR REDUCING CYLINDER AIR-FUEL RATIO IMBALANCE Public/Granted day:2017-08-24
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