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US 2015/0032357 A1Published application
Barometric pressure inference based on tire pressure
AssigneeFord Global Technologies, LLC
InventorAed M. Dudar
Life of this patent
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Abstract
Methods and systems for detecting barometric pressure (BP) changes based on tire pressure changes are disclosed. In one example approach, a method comprises adjusting an evaporative leak detection threshold based on a change in barometric pressure, where the change in barometric pressure is based on a tire pressure change.
Claims20
A method for a vehicle with an engine, comprising:
- adjusting an evaporative leak detection threshold based on a change in barometric pressure, the change in barometric pressure based on a tire pressure change.
A method for a vehicle with an engine, comprising:
- adjusting engine operation responsive to a change in barometric pressure, the change in barometric pressure based on a tire pressure change determined via one or more tire pressure sensors.
A vehicle system, comprising:
- an engine;
- a barometric pressure sensor in an intake of the engine;
- one or more tire pressure sensors coupled to one or more tires of the vehicle;
- an intake throttle in the intake of the engine;
- a controller having instruction executable to:
- in response to an opening amount of the intake throttle greater than a threshold while the engine is in operation, adjust engine operation responsive to a change in barometric pressure, where the change in barometric pressure is determined via the barometric pressure sensor;
- and
- in response to an opening amount of the intake throttle less than the threshold while the engine is in operation, adjust engine operation responsive to a change in barometric pressure, where the change in barometric pressure is determined via the one or more tire pressure sensors coupled to one or more tires of the vehicle.
5 more elements
Dependencies are inferred from the claim text.