Invention Grant
US09410467B2 Methods and systems for humidity detection via an exhaust gas sensor
有权
通过废气传感器进行湿度检测的方法和系统
- Patent Title: Methods and systems for humidity detection via an exhaust gas sensor
- Patent Title (中): 通过废气传感器进行湿度检测的方法和系统
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Application No.: US14513942Application Date: 2014-10-14
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Publication No.: US09410467B2Publication Date: 2016-08-09
- Inventor: Gopichandra Surnilla , Richard E. Soltis , Timothy Schram , Timothy Joseph Clark , Evangelos Skoures
- 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: Alleman Hall McCoy Russell & Tuttle LLP
- Agent Julia Voutyras
- Main IPC: F01N11/00
- IPC: F01N11/00 ; F02D41/12 ; F02D41/02 ; F02P5/145 ; F02D41/14
Abstract:
Various methods and system are described for determining ambient humidity via an exhaust gas sensor disposed in an exhaust system of an engine. In one example, a reference voltage of the sensor is modulated between a first and second voltage during non-fueling conditions of the engine. The ambient humidity is determined based on an average change in pumping current while the voltage is modulated.
Public/Granted literature
- US20150027103A1 METHODS AND SYSTEMS FOR HUMIDITY DETECTION VIA AN EXHAUST GAS SENSOR Public/Granted day:2015-01-29
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