Entries |
Document | Title | Date |
20080216566 | APPARATUS AND METHOD FOR REMOVABLY SECURING TIRE PRESSURE MONITORING SENSOR TO A TIRE - A reusable tire pressure sensor assembly comprises a housing member | 09-11-2008 |
20080264161 | Tag Used for Monitoring the Tire Pressure - A measuring method for measuring physical variables comprises—the selection of a working point (AP) lying within a total measurement range (G) of a physical variable (M) to be measured,—the detection of a measured value (M(t1)) of the physical variable at a first measuring time (t1),—the determination of a displacement value (V(t1)) as the result of a subtraction of the measured value (M(t1)) measured at the first measuring time from the working point (AP),—the formation of change values (C(t2), C(t3) . . . C(tx)) of the physical variable (M) by acquiring subsequent measured values (M(t2), M(t3) . . . M(tx)) of the physical variable at subsequent measuring times (t2, t3 . . . tx) and addition of the displacement value (V(t1)) to the subsequent measured values. | 10-30-2008 |
20090013773 | Transmission System For Tire State Quantities - A transmission device for motor vehicles for transmitting signals about tire condition variables from a wheel to an electronic evaluating or control unit arranged in the area of the vehicle body, wherein the tire condition variables can be detected especially by one or a plurality of sensor subassemblies ( | 01-15-2009 |
20090071237 | CAPACITIVE MEASUREMENT OF TIRE DEFORMATION - The invention relates to systems and methods for detecting and monitoring tire deformation. In one embodiment, a tire deformation detection system comprises a first electrode, a second electrode, circuitry, and a central control unit. The first electrode is coupled to an interior surface of a tire. The second electrode is coupled to an interior surface of the tire and configured with the first electrode to form a first capacitor. The circuitry is configured to measure a first capacitance of the first capacitor. The central control unit is configured to detect a deformation of the tire based at least in part on the first capacitance. | 03-19-2009 |
20090145215 | TAG USED FOR MONITORING THE TIRE PRESSURE - A measuring method for measuring physical variables comprises
| 06-11-2009 |
20090151441 | TIRE PRESSURE ADJUSTING SYSTEM OF VEHICLE AND METHOD OF CONTROLLING THE SAME - A tire pressure adjusting system of a vehicle includes: a sensor mounted in a tire, to measure pressure and/or temperature of air in the tire, and to send a signal corresponding to the pressure and/or temperature; a magnetic field generator mounted on the vehicle body near the tire, to receive the signal from the sensor, and to generate a magnetic field; a current generator mounted in the tire, to generate electricity by using the magnetic field; and an electric heating member mounted in the tire, to generate heat by using the electricity supplied from the current generator, thereby heating the air in the tire. A method of controlling tire pressure includes determining whether the pressure is too low; and, if the pressure is too low, heating air in the tire until the pressure is not too low. | 06-18-2009 |
20090308150 | Method and device for monitoring the pressure of a tire - A method of monitoring a pressure (P) of a tire of a motor vehicle involves measuring a pressure (P) of the tire and comparing the measured pressure with at least one reference value (P | 12-17-2009 |
20100058852 | System for detecting the pressure in a vehicle tire and/or the speed of the vehicle - A system for detecting the pressure in a pneumatic vehicle tire which is mounted on a vehicle and/or the speed of the vehicle, having an arrangement composed of load sensors which supplies force signals for a two-dimensional pattern of the distribution of force which is exerted by the vehicle tire in contact with the sensors when the vehicle moves over the arrangement, a computer which is programmed in such a way that it defines the tire pressure and/or the speed on the basis of the distribution of force independently of the method of manufacture or the model of the tire and of the vehicle, and a device for displaying the pressure and/or the speed, is characterized in that the arrangement composed of load sensors comprises at least two series of load sensors which are arranged one behind the other in the direction of travel, wherein at least one row of load sensors is offset with respect to one or more rows of the load sensors by a predetermined absolute value transversely with respect to the direction of travel. | 03-11-2010 |
20100126264 | APPARATUS AND METHOD FOR DETECTING DECREASE IN TIRE AIR PRESSURE AND PROGRAM FOR DETECTING DECREASE IN TIRE AIR PRESSURE - An apparatus includes a rotating wheel speed ratio calculation means for calculating, based on rotation velocity information, a rotating wheel speed ratio between front wheels and rear wheels of the vehicle; a wheel torque calculation means for calculating a wheel torque of the vehicle; an initialization means for obtaining a relation at a normal internal pressure between the wheel torque and the rotating wheel speed ratio between the front wheels and the rear wheels; a storage means for storing the relation obtained; a comparison means for comparing the rotating wheel speed ratio obtained by the rotating wheel speed ratio calculation means with the rotating wheel speed ratio at a normal internal pressure obtained from the wheel torque obtained by the wheel torque calculation means and the relation; and a judgment means for judging whether a tire air pressure is decreased or not based on a comparison result. | 05-27-2010 |
20110107828 | APPARATUS AND METHOD FOR DETECTING TIRE HAVING DECREASED PRESSURE, AND PROGRAM FOR DETECTING TIRE HAVING DECREASED PRESSURE - The detection appatatus includes means for detecting rotation speed information of the respective wheels of a vehicle; means for estimating, a frequency characteristic of the wheel rotation speed information; and means for determining, based on the estimated frequency characteristic, a tire having a decreased air pressure. The frequency characteristic estimate means includes, to a time-series signal including the wheel rotation speed information: means for time-series estimating a third order or more linear model parameter; means for generating pseudo input data; means for estimating, based on the estimated linear model parameter and the pseudo input data, output data to a linear model; means for identifying, based on the pseudo input data and the estimated output, a linear model parameter for which the order is reduced to a second order; and means for estimating, based on the identified parameter for which the order is reduced to the second order, a resonance frequency of a tire torsional direction. The decreased air pressure determination means is so configured as to determine a tire having a decreased air pressure based on the estimated resonance frequency of the tire torsional direction. | 05-12-2011 |
20130186194 | APPARATUS AND METHOD FOR MEASURING A TIRE PRESSURE FROM THE TIRE FOOTPRINT - An apparatus for measuring the pressure of a tire on a moving vehicle, comprising measuring device ( | 07-25-2013 |
20140060168 | EQUIPMENT FOR MEASURING THE INFLATION PRESSURE OF A TIRE OF A VEHICLE WHEEL - The invention provides measurement equipment for measuring the inflation pressure of a tire of a vehicle wheel | 03-06-2014 |
20150007645 | METHOD FOR TESTING THE RESISTANCE OF A TYRE TO PRESSURE LOSS - A method for testing a punctured tyre's resistance to a loss in pressure includes: creating a plurality of punctures in a wall of the tyre by inserting a plurality of puncturing objects through the wall; running the tyre with the puncturing objects in the wall thereof over a given distance with a regulated inflation pressure; stopping the running of the tyre; and determining, for each puncture, a pressure loss resistance index based on an estimate of a leak rate of the puncture. | 01-08-2015 |
20150020584 | WHEEL POSITION DETECTOR AND TIRE INFLATION PRESSURE DETECTOR HAVING THE SAME - A wheel position detector for a vehicle includes: a transmitter at each wheel having a first control portion for transmitting a frame with specific identification information; and a receiver at a vehicle body receiving the frame from one wheel and having a second control portion for performing wheel position detection; and a wheel speed sensor for detecting a tooth of a gear. The second control portion: acquires gear information indicating a tooth position; sets a variation allowance based on the tooth position; registers the one wheel with using the variation allowance; and performs the wheel position detection by excluding an identified wheel as the one wheel from a candidate of another wheel mounting the transmitter that transmits another frame when the second control portion identifies the one wheel. | 01-22-2015 |
20150298513 | AIR-PRESSURE MONITORING DEVICE AND MALFUNCTION-DETERMINATION-THRESHOLD-VALUE DETERMINATION METHOD - A rotation angle velocity is acquired in each of a two-wheel high pressure state and a reference state of air pressures of respective four wheels, and a rotation angle velocity value and a resonant frequency are acquired. The rotation angle velocity value, etc, acquired in the two-wheel high pressure state and the rotation angle velocity value, etc, acquired in the reference state are compared with each other. When these values are generally equal to each other, it is determined that at least one of the values is not appropriate for the determination of the malfunction determination threshold value, and a preset value is determined to be used as the malfunction determination threshold value. When these values are different from each other, the malfunction determination threshold value is determined. The determination of the malfunction determination threshold value to an inappropriate value is thus avoided, reliably monitoring the air pressures. | 10-22-2015 |
20160061681 | MODULE FOR SENSING DYNAMIC CONTACT PRESSURE OF TIRE AND TIRE TESTING APPARATUS USING THE SAME - The present invention relates to a device for testing static characteristics and a dynamic contact pressure of a tire and, more specifically, to a module for sensing a dynamic contact pressure of a tire, which is installed on a road surface, measures a tire contact pressure and a deformation amount generated between a tire and the road surface in the course of actually driving a vehicle, to predict and analyze wearing performance of the tire, control stability (cornering), braking performance, rotation resistance, and the like, and includes a plurality of cameras capable of close-up imaging to make a distance between a contact plate and a camera narrow to lower an overall height, thereby simplifying a configuration and easily moving, and a tire testing apparatus using the same. | 03-03-2016 |
20160167466 | PROBE AND DEVICE FOR TESTING TIRES | 06-16-2016 |
20160200155 | Method and System for Determining a Pressure Deviation Between a Setpoint Tire Pressure and an Actual Tire Pressure for a Tire of a Vehicle as Well as for Determining a Wheel Load | 07-14-2016 |