发明授权
US07188517B2 System and method for detection of degradation of vacuum brake booster sensor
有权
用于检测真空制动助力传感器劣化的系统和方法
- 专利标题: System and method for detection of degradation of vacuum brake booster sensor
- 专利标题(中): 用于检测真空制动助力传感器劣化的系统和方法
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申请号: US11157324申请日: 2005-06-20
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公开(公告)号: US07188517B2公开(公告)日: 2007-03-13
- 发明人: James Michael Kerns , John D. Russell
- 申请人: James Michael Kerns , John D. Russell
- 申请人地址: US MI Dearborn
- 专利权人: Ford Global Technologies, LLC
- 当前专利权人: Ford Global Technologies, LLC
- 当前专利权人地址: US MI Dearborn
- 代理机构: Alleman Hall McCoy Russell & Tuttle LLP
- 代理商 Allan J. Lippa
- 主分类号: G01L5/28
- IPC分类号: G01L5/28
摘要:
Systems and methods for detecting degradation of a sensor in a vacuum brake booster coupled to a manifold of an internal combustion engine include measuring an engine or vehicle operating parameter to detect operating or control conditions and detecting degradation of the sensor based on the engine or vehicle operating parameter. In one embodiment the operating parameter is a measured or estimated manifold pressure. A pressure drop across a check valve disposed between the brake booster and the intake manifold may also be considered.