Invention Grant
- Patent Title: Diagnosis for multiple cylinder engine
- Patent Title (中): 诊断多缸发动机
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Application No.: US12732497Application Date: 2010-03-26
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Publication No.: US08594906B2Publication Date: 2013-11-26
- Inventor: Hajime Suetsugu , Kenji Kojima , Tetsushi Hosokai , John D. Russell
- Applicant: Hajime Suetsugu , Kenji Kojima , Tetsushi Hosokai , John D. Russell
- Applicant Address: JP Hiroshima US MI Dearborn
- Assignee: Mazda Motor Corporation,Ford Global Technologies, LLC
- Current Assignee: Mazda Motor Corporation,Ford Global Technologies, LLC
- Current Assignee Address: JP Hiroshima US MI Dearborn
- Agency: Alleman Hall McCoy Russell & Tuttle LLP
- Main IPC: B60T7/12
- IPC: B60T7/12 ; G05D1/00 ; G06F7/00 ; G06F17/00 ; F02D41/00 ; G01N7/00 ; G01N33/497
Abstract:
Methods and systems for diagnosing a multiple cylinder engine are provided herein. An exemplary method of diagnosing an internal combustion engine system having a multi-cylinder internal combustion engine is described. In one example, cylinder air-fuel imbalance is determined from the squared value of a difference of two values.
Public/Granted literature
- US20110238279A1 DIAGNOSIS FOR MULTIPLE CYLINDER ENGINE Public/Granted day:2011-09-29
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