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US 8,558,680 B2Granted
Method for determining a vehicle tire tread depth
AssigneeRobert Bosch GmbH
InventorThorsten Pannek
Life of this patent
Estimating the term…
Abstract
A method is described for determining a vehicle tire tread depth using at least one sensor situated in or on the vehicle tire, the tire tread depth being determined as a function of a tire contact area detected by the sensor.
Claims13
A method for determining a vehicle tire tread depth, the method comprising:
- determining a tire contact area using at least one sensor, which is situated in or on the vehicle tire, wherein the tire contact area is an area of contact between the vehicle tire and a roadway;
- calculating a tire revolution time based on an amount of time that a section of the tire containing the at least one sensor spends in the tire contact area;
- and determining the tire tread depth as a function of the tire contact area.
A method for determining a vehicle tire tread depth, the method comprising:
- determining a tire contact area using at least one sensor, which is situated in or on the vehicle tire;
- and determining the tire tread depth as a function of the tire contact area;
- wherein the vehicle tire tread depth is determined as a function of first correction data of a memory, the memory having characteristic curves for the vehicle tire, and wherein the characteristic curves include information regarding dimensions, rolling properties, rolling radius changes and factory tire tread depths of various tire types.
A method for determining a vehicle tire tread depth, the method comprising:
- determining a tire contact area using at least one sensor, which is situated in or on the vehicle tire;
- and determining the tire tread depth as a function of the tire contact area;
- wherein the vehicle tire tread depth is determined in a central control unit, which receives inductively or electromagnetically a tire revolution time, the speed value, the tire contact area, an average value, the vehicle tire tread depth, a range, a limit value, a warning signal, first correction data, second correction data, and third correction data.
A sensor system for determining a vehicle tire tread depth of a vehicle tire, comprising:
- at least one sensor situated in or on the vehicle tire;
- and a determining arrangement to determine:
- a tire contact area based on an output of the at least one sensor, wherein the tire contact area is an area of contact between the vehicle tire and a roadway;
- a tire revolution time based on an amount of time that a section of the tire containing the at least one sensor spends in the tire contact area;
- and the tire tread depth as a function of the tire contact area.
2 more elements
A method for calculating a vehicle tire tread depth, the method comprising:
- identifying a tire contact area corresponding to an area of contact between the vehicle tire and a roadway, using at least one sensor situated in or on the vehicle tire;
- calculating a tire revolution time based on an amount of time that a section of the tire containing the at least one sensor spends in the tire contact area;
- and calculating the tire tread depth as a function of the tire contact area.
Dependencies are inferred from the claim text.