Invention Grant
- Patent Title: Method for adjusting engine air-fuel ratio
- Patent Title (中): 调整发动机空燃比的方法
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Application No.: US13083101Application Date: 2011-04-08
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Publication No.: US08165787B2Publication Date: 2012-04-24
- Inventor: Dennis Craig Reed , Bruce Colby Anderson
- Applicant: Dennis Craig Reed , Bruce Colby Anderson
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Alleman Hall McCoy Russell & Tuttle LLP
- Agent Julia Voutyras
- Main IPC: F02D41/30
- IPC: F02D41/30 ; F01N3/00
Abstract:
A method for adjusting an air-fuel ratio of an engine is disclosed. In one example, the engine air-fuel ratio is adjusted in response to a duty cycle and frequency of a post catalyst oxygen sensor. The method may improve catalyst efficiency.
Public/Granted literature
- US20110213547A1 Method for Adjusting Engine Air-Fuel Ratio Public/Granted day:2011-09-01
Information query
