SENSOR SYSTEMS INTEGRATED WITH VEHICLE TIRES
First Claim
Patent Images
1. A sensor system for use with a vehicle tire, comprising:
- a flexible piezoresistive substrate; and
an array of sensors, each sensor including at least two conductive traces formed directly on the piezoresistive substrate, each sensor being positioned on the substrate to align with a region of the vehicle tire, wherein resistance between the conductive traces varies with force applied to the piezoresistive substrate; and
sensor circuitry configured to receive sensor signals from the array of sensors, each sensor signal representing a force associated with a corresponding one of the sensors;
wherein the sensor system is configured to conform to an interior of the vehicle tire.
1 Assignment
0 Petitions
Accused Products
Abstract
Sensor systems using piezoresistive materials are described that may be integrated with vehicle tires for use in a variety applications such as, for example, tire pressure monitoring, tread wear monitoring, anti-lock braking system control, suspension adjustment and/or control, wheel-drive system control, or road surface determination.
-
Citations
31 Claims
-
1. A sensor system for use with a vehicle tire, comprising:
-
a flexible piezoresistive substrate; and an array of sensors, each sensor including at least two conductive traces formed directly on the piezoresistive substrate, each sensor being positioned on the substrate to align with a region of the vehicle tire, wherein resistance between the conductive traces varies with force applied to the piezoresistive substrate; and sensor circuitry configured to receive sensor signals from the array of sensors, each sensor signal representing a force associated with a corresponding one of the sensors; wherein the sensor system is configured to conform to an interior of the vehicle tire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A sensor system for use with a vehicle tire, comprising:
-
piezoresistive material; a dielectric substrate aligned and in contact with the piezoresistive material; and an array of sensors, each sensor including at least two conductive traces formed directly on the dielectric substrate such that the conductive traces are in contact with the piezoresistive material, each sensor being positioned on the dielectric substrate to align with a region of the vehicle tire, wherein resistance between the conductive traces varies with force applied to the piezoresistive material; and sensor circuitry configured to receive sensor signals from the array of sensors, each sensor signal representing a force associated with a corresponding one of the sensors; wherein the sensor system is configured to conform to an interior of the vehicle tire. - View Dependent Claims (16, 17)
-
-
18. A method for determining locations of each of a plurality of tires on a vehicle, comprising:
-
receiving turn data representing a plurality of right and left turns of the vehicle; receiving tire sensor data for each of the tires of the vehicle, the tire sensor data representing forces at a contact patch for the corresponding tire; and determining a tire location on the vehicle for each of the tires with reference to the turn data and the tire sensor data. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
-
Specification