SYSTEM AND METHOD FOR ESTIMATING PNEUMATIC PRESSURE STATE OF VEHICLE TIRES
First Claim
1. A system for estimating pneumatic pressure state of vehicle tires, said system comprising:
- (a) at least one sensor unit, each comprising at least one optical sensor for acquiring at least one image of at least one wheel of the respective vehicle; and
(b) at least one controller comprising at least one processor for receiving image data of a respective wheel of the vehicle from said sensor unit and analyzing thereof for estimating a pneumatic pressure state of a tire of said wheel, said processor is configured to allow presenting the estimated pneumatic pressure state of each respective tire,wherein said image analysis comprises estimating value of at least one predefined parameter of the respective tire in the image and comparing the estimated parameter with a known value of a corresponding parameter of a properly inflated tire, andwherein said at least one parameter comprises at least a footprint length of the tire defined as a portion of an external periphery of the tire in the image that is in contact with the ground.
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Accused Products
Abstract
A system and a method for estimating pneumatic pressure state of vehicle'"'"'s tires where the system includes one or more sensor units, each including an optical sensor such as camera for acquiring at least one image of at least one wheel of the respective vehicle and a controller including a processor for receiving image data of a respective wheel of the vehicle from the sensor units and analyzing thereof for estimating a pneumatic pressure state of one or more of the vehicle'"'"'s tires using special image analysis processes. The processor is also configured to allow presenting the estimated pneumatic pressure state of each respective tire.
21 Citations
22 Claims
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1. A system for estimating pneumatic pressure state of vehicle tires, said system comprising:
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(a) at least one sensor unit, each comprising at least one optical sensor for acquiring at least one image of at least one wheel of the respective vehicle; and (b) at least one controller comprising at least one processor for receiving image data of a respective wheel of the vehicle from said sensor unit and analyzing thereof for estimating a pneumatic pressure state of a tire of said wheel, said processor is configured to allow presenting the estimated pneumatic pressure state of each respective tire, wherein said image analysis comprises estimating value of at least one predefined parameter of the respective tire in the image and comparing the estimated parameter with a known value of a corresponding parameter of a properly inflated tire, and wherein said at least one parameter comprises at least a footprint length of the tire defined as a portion of an external periphery of the tire in the image that is in contact with the ground. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of estimating pneumatic pressure in tires of vehicles, said method comprising:
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a) acquiring at least one image of at least one of wheel of a vehicle, using at least one sensor unit comprising an optical sensor; b) analyzing each respective image of each tire of the respective wheel for estimating value of at least one parameter of said tire related to pneumatic pressure thereof and comparing the estimated parameter with a known value of a corresponding parameter of a properly inflated tire, wherein said at least one parameter comprises at least a footprint length of the tire defined as a portion of an external periphery of the tire in the image that is in contact with the ground; c) estimating pneumatic pressure state of the respective tire by comparing the estimated value of said parameter with a known parameter value of a properly inflated corresponding tire; and d) presenting an indication of said estimated pneumatic pressure state. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification