Back to results
US 12,664,835 B2Granted
Backup for tire-pressure monitoring system
AssigneeFord Global Technologies, LLC
InventorAdam Merz
Life of this patent
Estimating the term…
Abstract
A computer includes a processor and a memory, and the memory stores instructions executable by the processor to, in response to a speed at which a vehicle is traveling exceeding a vehicle-speed threshold, determine a difference between wheel speeds of different wheels of the vehicle; and, in response to the difference exceeding a difference threshold, output a message indicating low pressure of a tire of one of the wheels.
Claims20
A vehicle system comprising:
- a tire-pressure monitoring system of a vehicle;
- and
- a computer of the vehicle, the computer comprising a processor and a memory, the memory storing instructions executable by the processor to:
- determine that the tire-pressure monitoring system is inactive;
- identify a fastest wheel speed and a slowest wheel speed of wheel speeds of at least four different wheels of the vehicle;
- in response to a speed at which the vehicle is traveling exceeding a vehicle-speed threshold and the determination that the tire-pressure monitoring system is inactive, determine a difference between the fastest wheel speed and the slowest wheel speed;
- and
- in response to the difference exceeding a difference threshold, output a message indicating low pressure of a tire of one of the wheels.
5 more elements
A method comprising:
- determining that a tire-pressure monitoring system of a vehicle is inactive;
- identifying a fastest wheel speed and a slowest wheel speed of wheel speeds of at least four different wheels of the vehicle;
- in response to a speed at which the vehicle is traveling exceeding a vehicle-speed threshold and the determination that the tire-pressure monitoring system is inactive, determining a difference between the fastest wheel speed and the slowest wheel speed;
- and
- in response to the difference exceeding a difference threshold, outputting a message indicating low pressure of a tire of one of the wheels.
2 more elements
Dependencies are inferred from the claim text.