Apparatus for monitoring tire pressure
First Claim
1. An apparatus for monitoring a tire pressurization state in a tire, the apparatus comprising:
- a magneto-mechanical pressure sensor being in or on the tire;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display to communicate the tire pressurization state to an operator.
0 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for monitoring tire pressurization state in a tire has a magneto-mechanical pressure sensor in or on the tire and an electromagnetic excitation system. The electromagnetic excitation system is for interrogating the magneto-mechanical pressure sensor. The apparatus also has a receiver. The receiver is for receiving information from the electromagnetic excitation system. The apparatus also has a data interpretation system for translating the received information into the tire pressurization state. The data interpretation system is connected to a display. The display communicates the tire pressurization state to an operator.
34 Citations
51 Claims
-
1. An apparatus for monitoring a tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor being in or on the tire;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display to communicate the tire pressurization state to an operator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An apparatus for monitoring a tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor having a sensor housing, said magneto-mechanical pressure sensor being connected to an inner surface of the tire, said magneto-mechanical pressure sensor having a magnetostrictive element in said sensor housing free to resonate in said sensor housing, wherein said magneto-mechanical pressure sensor has a magnetically hard element connected to a diaphragm, wherein said diaphragm is sealed and has a first pressure therein, and wherein said magnetically hard element moves relative to said magnetostrictive element;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display to communicate the tire pressurization state to an operator. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
-
16. An apparatus for monitoring a tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor having a magnetostrictive element free to resonate in the tire, said magneto-mechanical pressure sensor having a magnetically hard element connected to a diaphragm, wherein said diaphragm is sealed and has a first pressure therein, wherein said magnetically hard element moves relative to said magnetostrictive element, and wherein said diaphragm is formed as an integral part of a sidewall of the tire;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display to communicate the tire pressurization state to an operator. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. An apparatus for monitoring a tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor has a resonant chamber, a magnetically hard element, a magnetostrictive element, a membrane being positioned between said magnetically hard element and said magnetostrictive element, said membrane preventing said magnetically hard element and said magnetostrictive element from contacting one another, wherein said magnetically hard element moves relative to said magnetostrictive element;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display to communicate the tire pressurization state to an operator. - View Dependent Claims (27)
-
-
28. An apparatus for monitoring a tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor having a linear motion mechanical sensing component, a magnetically hard element and a magnetostrictive element, and a member in said magneto-mechanical pressure sensor, wherein said member toggles at a predetermined pressure differential from a first position to a second position, wherein said member allows said magnetostrictive element to move relative to said magnetically hard element at said first position, and said member changes a characteristic resonance of at least one of said magnetostrictive element and said magnetically hard element at a second position by a manner being selected from the group consisting of touching and preventing said magnetostrictive element from resonating relative to said magnetically hard element, changing a proximity of said magnetostrictive element relative to said magnetically hard element, changing a proximity of said magnetically hard element relative to said magnetostrictive element, dampening a vibration of said magnetically hard element, dampening a vibration of said magnetostrictive element, and any combinations thereof;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display to communicate the tire pressurization state to an operator. - View Dependent Claims (29, 30, 31)
-
-
32. An apparatus for monitoring a tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor having a diaphragm, a magnetically hard element, a magnetostrictive element, and a sensing device, said sensing device contacting both said diaphragm and said magnetostrictive element, said sensing device modulating said magnetostrictive element at a predetermined pressure;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display to communicate the tire pressurization state to an operator. - View Dependent Claims (33)
-
-
34. An apparatus for monitoring a tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor having a linear action device, a magnetically hard element, a magnetostrictive element, and a clamping mechanism, said clamping mechanism being adjustable to clamp at least one of said magnetostrictive element and said magnetically hard element at a predetermined location on at least one of said magnetostrictive element and said magnetically hard element, said clamping mechanism for modulating a vibration of said magnetostrictive element;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display to communicate the tire pressurization state to an operator.
-
-
35. An apparatus for monitoring a tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor in the tire;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display to communicate the tire pressurization state to an operator, said data interpretation system amplifying information from said electromagnetic excitation system, said amplified information being transmitted to a digital signal processor connected to a detector. - View Dependent Claims (36, 37)
-
-
38. An apparatus for monitoring tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor having a magnetically hard element and a magnetostrictive element, said magnetostrictive element having a first end anchored to the tire and a second free end, said magnetostrictive element resonating relative to said magnetically hard element, said resonance causing a response, said response being selected from the group consisting of a movement, an electromagnetic response, a electromagnetic resonance, and any combinations thereof;
an electromagnetic excitation system for interrogating said magneto-mechanical pressure sensor, said electro magnetic excitation system having a first excitation coil and a second pickup coil, said first excitation coil producing a field for producing said response, said second pickup coil for receiving said response;
a receiver for receiving information from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display, wherein said display communicates the tire pressurization state to an operator. - View Dependent Claims (39, 40, 41, 42)
-
-
43. An apparatus for monitoring tire pressurization state in a tire, the apparatus comprising:
-
a magneto-mechanical pressure sensor in a tire, said magneto-mechanical pressure sensor having a magnetically hard element and a magnetostrictive element, said magnetostrictive element moving relative to said magnetically hard element in a manner being selected from the group consisting of a rotary manner, a linear manner, and any combinations thereof, said magneto-mechanical pressure sensor for measuring an electromagnetic resonance frequency;
a component for deflecting when exposed to a differential pressure, said component moving said magnetostrictive element relative to said magnetically hard element, said component being selected from the group consisting of a linear motion device, a rotary motion device and any combinations thereof; and
a reference pressure chamber being sealed in the tire. - View Dependent Claims (44)
-
-
45. An apparatus for monitoring tire pressurization state in a tire, the apparatus comprising:
-
an electromagnetic excitation system having a first excitation coil and a second pickup coil, said first excitation coil producing a first electromagnetic field and said second pickup coil for receiving a second electromagnetic field;
a magneto-mechanical pressure sensor having a magnetically hard element and a magnetostrictive element being oriented in a radial manner relative to said magnetically hard element, said magnetostrictive element and said magnetically hard element having a degree of alignment, said degree of alignment changing depending on a tire pressure, said degree of an alignment changing said first electromagnetic field to said second electromagnetic field in proportion to said pressure change in the tire, wherein said electro magnetic excitation system interrogates said magneto-mechanical pressure sensor, said electro magnetic excitation system having a receiver for receiving information about said second magnetic field from said electro magnetic excitation system; and
a data interpretation system for translating said received information into the tire pressurization state, said data interpretation system being connected to a display, wherein said display communicates the tire pressurization state to an operator. - View Dependent Claims (46, 47, 48)
-
-
49. A method for determining a pressure state in a tire, the method comprising:
-
estimating a first resonant frequency of a first temperature reading;
determining a first resonance peak of said first resonance frequency;
determining a temperature value for correcting said first resonance frequency;
determining a pressure that is substantially equal to a last known pressure in the tire;
determining a second resonant frequency for said estimated pressure;
correcting said second resonant frequency by comparing said first resonant frequency to said second resonant frequency;
determining a second resonant peak of said second resonant frequency; and
determining a second temperature for a corrected resonant frequency and outputting said corrected resonant frequency based upon said second temperature to a controller.
-
-
50. A method for determining a pressure state in a rotating tire, the method comprising:
-
determining a resonance peak from a first frequency from a sensor; and
determining said first frequency equal to a predetermined estimate of said first frequency;
recording said time of a detectable response;
recording a maximum amplitude of said detectable response;
calculating a time interval from said detectable response to a second detectable response;
correcting said response for a rotational velocity of the tire and applying said correction to a maximum amplitude measured by said first frequency. - View Dependent Claims (51)
-
Specification