- 专利标题: METHODS AND SYSTEMS FOR DETERMINING VEHICLE SPEED AND BAROMETRIC PRESSURE
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申请号: US17115664申请日: 2020-12-08
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公开(公告)号: US20220178964A1公开(公告)日: 2022-06-09
- 发明人: Douglas Martin , John Rollinger
- 申请人: Ford Global Technologies, LLC
- 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
- 主分类号: G01P21/02
- IPC分类号: G01P21/02 ; G01P5/14
摘要:
Methods and systems are provided for utilization of vehicle speed and barometric pressure sensors. In one example, a method may include measuring a change in a barometric pressure resulting from a measured change in a vehicle speed, modeling the change in the barometric pressure based on a change in a ram-air pressure resulting from the change in the vehicle speed, and indicating a degraded barometric pressure measurement when a difference between the measured and the modeled change in the barometric pressure is greater than a threshold pressure difference.
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