| Entries |
| Document | Title | Date |
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| 20080276700 | Method for monitoring the tire condition in vehicles - In a method for monitoring the tire condition in a vehicle, the vertical acceleration is measured at one axle of the vehicle, a reference stiffness value is determined from the vertical acceleration, and a tire pressure is assigned to the reference stiffness value. In the case of a detected tire pressure loss, the tire pressure is assigned to the tire of the wheel having the pressure loss. | 11-13-2008 |
| 20080289406 | GROUP FOR MEASURING PHYSICAL PARAMETERS RELATING TO A STATE OF A TIRE - A group for measuring physical parameters relating to a state of a tire, comprising: an internal panel comprising at least a sensor, means for fixing for removably connecting the internal panel to a groove of a rim. The means for fixing comprise: a support element, solidly associable to the rim, and means for connecting predisposed to realize a reversible elastic coupling between the support element and the internal panel. | 11-27-2008 |
| 20090188310 | WHEEL FOR VEHICLES - A wheel for vehicles includes a rim, a tyre mounted on the rim, and at least one device for energy generation operatively associated with the tyre. The device for energy generation includes a first element that is fixed relative to the rim or to the tyre, and a second element mounted on the first element and free to rotate relative to the first element around a predetermined rotation axis. The second element has a mass centre eccentric to the predetermined rotation axis. The device for energy generation further includes an electric generator having a stator mounted on the first element and a rotor mounted on the second element. | 07-30-2009 |
| 20090241655 | TIRE INFLATION SYSTEM - Preferably, an embodiment of a tire inflation system includes at least an axle housing a pressurized fluid, a hubcap supported by the axle and having an interior and an exterior, a rotary union axially aligned with the axle and mounted to the hubcap from the exterior of the hubcap, and a lubrication trap axially aligned with the axle, supporting the rotary union and secured to the hubcap from the exterior of the hubcap for rotation with the hubcap. In another embodiment, a tire inflation system includes at least an axle housing a pressurized fluid, a hubcap supported by the axle and having an interior and an exterior, a rotary union axially aligned with the axle and mounted to the hubcap from the exterior of the hubcap, and a bushing axially aligned with the axle and disposed between the rotary union and the hubcap. | 10-01-2009 |
| 20100031741 | Vehicle Tire Pressure Measurement Unit - The present invention concerns a vehicle tire pressure measurement unit | 02-11-2010 |
| 20100180677 | VEHICLE LOAD WEIGHT DETECTING APPARATUS - A vehicle includes an ABS, which controls braking force on wheels, and a tire condition monitoring apparatus, which detects the internal air pressure of tires. The dynamic rolling radius of the tires is computed based on signals from rotation sensor units of the ABS. The weight of a load carried by the vehicle is computed based on the dynamic rolling radius of the tires and the internal air pressure of the tires detected by the tire condition monitoring apparatus. When computing the load weight, a load weight determination map, which previously sets the relationship among the internal air pressure of the tires, the dynamic rolling radius of the tires, and the weight of the load carried by the vehicle, is used. | 07-22-2010 |
| 20100186493 | METHOD AND SYSTEM FOR GENERATING ELECTRICAL ENERGY WITHIN A VEHICLE TYRE - A tyre includes a flexible piezoelectric element associated with an energy storage device (e.g. a capacitor). The flexible piezoelectric element is mounted in cantilever-beam fashion within a housing so that a first end thereof is fixed to the housing. A loading mass is associated with the second end of the flexible piezoelectric element. A small gap is formed between the inner walls of the housing and the outer surface of the loading mass in order to allow limited flexure of the piezoelectric element. The housing, including the piezoelectric element, is mounted in a crown portion of the tyre, preferably on the inner surface of the tyre. The piezoelectric element flexes under the action of the longitudinal acceleration when the tyre rotates. Sufficient electrical power for powering an electronic device included within the tyre is obtained, together with a long durability of the piezoelectric element. | 07-29-2010 |
| 20100236325 | TIRE AIR-PRESSURE SENSOR - The present invention provides a tire air-pressure sensor ( | 09-23-2010 |
| 20100300192 | TIRE PRESSURE MONITORING SYSTEM AND PRESSURE MONITORING UNIT - After the running wheels | 12-02-2010 |
| 20110011172 | DEVICE FOR GENERATING ENERGY IN A ROTATING SYSTEM - A device for generating electrical energy in a rotating system for the purpose of supplying electric current to electronic components in the system, comprising external forces, acting on the system, that act on piezoelectrically active energy converters in the system, as a result of which electrical energy is generated, and comprising an electronic system for processing the generated electrical energy and transferring it to the components. | 01-20-2011 |
| 20110030464 | DEVICE AND METHOD FOR ESTIMATING THE INFLATION STATE OF A TIRE - A device for estimating an inflation state of a tire of at least one wheel of an automobile, that includes a memory storing a reference signature including a periodic signal corresponding to an inflation and to reference running conditions; a mechanism determining a current signature including a periodic signal corresponding to an inflation and to current running conditions; a mechanism comparing the current signature and the reference signature, and capable of outputting a signal based on the deviation between the current signature and the reference signature. | 02-10-2011 |
| 20110048121 | MEASURING AND READING THE SIZE OF A PARAMETER OF A REMOTELY POSITIONED DEVICE - A sensor-reader combination for measuring the size of a parameter of a device, the device and reader are postponed at a different physical position from each other. The measuring is done in a measuring space ( | 03-03-2011 |
| 20110185802 | ARRANGEMENT FOR DETERMINING THE PRESSURE IN AN UNDERCARRIAGE TYRE OF AN AIRCRAFT - The subject matter of the invention is an arrangement for determining the pressure in an undercarriage tyre of an aircraft, which arrangement has a measurement matrix ( | 08-04-2011 |
| 20110219864 | TIRE CONDITION DETECTION DEVICE AND TIRE CONDITION DETECTION METHOD - Disclosed is a tire condition detection apparatus capable of detecting the condition of a tire with a high degree of precision. The tire condition detection apparatus detects the tire condition of a pneumatic tire fixed to a wheel, and has a vibration input section that inputs predetermined vibration to the tire, a frequency information acquisition section that acquires frequency information of the tire when the predetermined vibration is input, and a tire condition estimation section that extracts a resonance frequency of the tire from the acquired frequency information, and calculates a spring constant when the tire is modeled using an outer moment of inertia, an inner moment of inertia, and a spring constant of elastic force acting therebetween, from the extracted tire resonance frequency. | 09-15-2011 |
| 20120000277 | TIRE PRESSURE MONITORING DEVICE HAVING POWER SUPPLIED BY MAGNETIC INDUCTION - A vehicle having a device for acquiring and transmitting at least one measurement signal that characterizes the state of a vehicle tire, such as tire air pressure and/or tire air temperature, having at least one sensor module that is supplied with electrical energy by an energy supply device and that contains at least one tire air pressure sensor and/or at least one tire air temperature sensor, the energy supply device having at least one generator that rotates with the vehicle tire as well as at least one magnetic field generator, an electrical voltage being produced in the generator by electromagnetic induction. The magnetic field generator is situated on a brake caliper of a disc brake of the vehicle. | 01-05-2012 |
| 20120118056 | APPARATUS AND METHOD FOR DETECTING DECREASE IN TIRE AIR PRESSURE AND PROGRAM FOR DETECTING DECREASE IN TIRE AIR PRESSURE - A method for detecting a decrease in tire air pressure based on wheel rotation speed information obtained from tires attached to a four-wheel vehicle. The method includes: a wheel rotation speed information detection step for detecting wheel rotation speed information of the respective tires; a first storage step for storing the wheel rotation speed information; a decreased pressure determination step for determining, based on the wheel rotation speed information, a decrease in tire air pressure; a second storage step for storing a relation between a standard driving torque and a vehicle speed obtained in advance; a decreased pressure determination prohibition step for prohibiting the determination of a decrease in tire air pressure when a vehicle turning radius is lower than a predetermined threshold value determined by the relation, and a decreased pressure determination start step for starting the determination of a decrease in tire air pressure when the turning radius is equal to or higher than the predetermined threshold value. | 05-17-2012 |
| 20120234087 | TRACKING FILTER APPARATUS FOR WHEEL MONITORING SYSTEMS - A wheel monitoring system that includes a tracking filter apparatus for tracking a signal that has a varying main frequency. The tracking filter apparatus has an adjustable filter and a filter controller arranged to measure the amplitude of the filtered signal and to compare amplitude against a reference value. The filter controller adjusts the cut off frequency of the filter if the measured amplitude differs from the reference value by an amount that exceeds a threshold value. The filter controller adjusts the cut off frequency such that the main frequency lies within the roll off region of the filter's frequency response. The system may be used to track signals that are produced by shock sensors in a wheel mounted monitoring device. | 09-20-2012 |
| 20120318056 | VIBRATION DETECTION APPARATUS, AIR PRESSURE DETECTION TERMINAL, AND ACCELERATION DETECTION SYSTEM - A vibration detection apparatus includes a vibrating device that generates an alternating voltage by vibration; a power storage part that stores power based on the alternating voltage generated by the vibrating device; and a counter circuit that counts the number of vibrations of the alternating voltage generated by the vibrating device. | 12-20-2012 |
| 20130042676 | TIRE PRESSURE SENSOR MOUNTING APPARATUS AND METHOD - A tire-pressure mount apparatus having a compartment in communication with a wheel and tire assembly. The compartment has a removable closure with a tire-pressure sensor and a valve stem mounted thereon so as to permit simultaneous removal of the tire-pressure sensor and valve stem when the closure is removed from the compartment, thus providing access thereto without requiring disassembly of the wheel and tire assembly. | 02-21-2013 |
| 20130074591 | TIRE PRESSURE MONITORING SYSTEM (TPMS) DEVICE - Disclosed herein is a tire pressure monitoring system (TPMS) device. The TPMS device includes: a pressure sensor recognizing an inner pressure of a tire; a pressure signal collecting processor collecting and processing a pressure signal of the pressure sensor; a motion sensor mounted in a vehicle body; and a motion signal collecting processor collecting and processing a motion signal from the motion sensor. Here, a position of the tire is determined by comparing a magnitude or a phase between the pressure signal and the motion signal. | 03-28-2013 |
| 20130098149 | METHOD, APPARATUS, AND PROGRAM FOR DETECTING TIRE HAVING DECREASED AIR PRESSURE - A method for detecting a tire having decreased air pressure based on wheel rotation information obtained from the tire attached to a vehicle in which there is a predetermined difference between front and rear wheel loads. The method includes the steps of acquiring wheel rotation information obtained from the tire, storing the wheel rotation information, acquiring a load sensitivity of a tire dynamic loaded radius due to load shift during turning, acquiring speed dependency of the load sensitivity, comparing load sensitivity of the tire dynamic loaded radius at a speed acquired based on the speed dependency with preliminarily stored load sensitivities of dynamic loaded radiuses of various tires, estimating decreased pressure sensitivity of the tire dynamic loaded radius based on a result of the comparison, and determining that the tire has a decreased air pressure based on a result of the estimation. | 04-25-2013 |
| 20130233068 | EXTENDED VALVE STEM CAP - The disclosed embodiments include a valve stem assembly for a tire pressure monitoring system sensor. The assembly can comprise a valve stem body, and a grommet for purposes of engaging a vehicle wheel. The valve stem body can comprise an attachment end to be attached to a pressure sensor to determine tire air pressure. The valve stem assembly can further comprise a cap that is releasably engaged to the valve stem body which can limit movement of the valve stem assembly relative to the vehicle wheel, the cap having a closed end to cover an air transfer end of the valve stem, and a second open end to overlay the valve stem body and grommet. | 09-12-2013 |
| 20130263655 | METHOD AND SYSTEM FOR ESTIMATING THE INFLATION PRESSURE OF A TIRE - A method and system for estimating the inflation pressure of a tire in which data representative of the deformation undergone by the tire on a rolling surface are obtained. The obtained data are processed so as to obtain a first quantity representative of the extent of the deformation within a first deformation region substantially corresponding to the footprint between the tire and the rolling surface and a second quantity, different from the first quantity, representing the extent of the deformation in a second deformation region, said second region including the first deformation region and having a circumferential extension greater than the circumferential extension of the first deformation region, the second quantity being obtained starting from at least a part of the obtained data, which corresponds to a portion of said second deformation region that is external to the footprint. The pressure is estimated based on the first quantity and the second quantity thus obtained. | 10-10-2013 |
| 20130305818 | Arrangement Of A Tire Pressure Sensor Unit - An arrangement of a tire pressure sensor unit on the inner wall of the tread of a vehicle tire in a retaining device for the sensor unit is provided. The retaining device is connected to the inner wall, wherein a sealing compound is applied to the inner wall, or in the case of a retaining device having a closed bottom section which is connected to the inner wall, the sealing compound is applied to the bottom section facing the sensor unit. In the event that a foreign object punctures the inner wall, or punctures the inner wall and the bottom section, the sealing compound prevents at least a short-term loss of pressure caused by the hole resulting therefrom in that the sealing compound at least almost tightly seals the hole. | 11-21-2013 |
| 20130327135 | Automatic Detection and Analysis of Tire Treads - A pressure sensor is used to automatically calculate physical parameters of a tire, for example, groove area fraction or shoulder center ratio. In one approach, a pressure sensor measures the pressure distribution produced by a tire when a known load is applied to the tire while it is resting on or traversing the pressure sensor. The resulting pressure map corresponds to tread area and features of the tread contact area. | 12-12-2013 |
| 20130327136 | METHOD FOR OPERATING A TIRE PRESSURE MONITORING SYSTEM FOR A MOTOR VEHICLE, TIRE PRESSURE MONITORING SYSTEM AND MOTOR VEHICLE - A method of operating a tire pressure monitoring system for a motor vehicle includes detection of a stationary state of the motor vehicle by way of a centrifugal force measured on the wheel side or a vehicle speed measured on the vehicle side, during a time period during which the vehicle speed is zero; detection and vehicle-side storage of an acceleration force in each wheel during the time period, and renewed detection of an acceleration force in each wheel at the end of the time period. The detected acceleration force in each wheel is transmitted to a vehicle-side control device and compared with earlier-stored acceleration forces associated with the respective wheel position. The tire pressure system is initialized following the stationary state of the motor vehicle in the event of a deviation in any of the wheels. There is also provided a tire pressure monitoring system and a motor vehicle. | 12-12-2013 |
| 20140069181 | TIRE SIDEWALL LOAD ESTIMATION SYSTEM AND METHOD - A system and method of estimating a load bearing on a vehicle tire includes an inflation pressure measuring sensor attached to the tire for measuring a tire cavity inflation pressure level; and one or more piezofilm deformation measuring sensors mounted to one or both of the tire sidewalls. The deformation measuring sensor generates within the tire footprint a deformation signal having signal power level indicative of a level of sidewall deformation within the footprint contact patch. Power-to-load maps adjusted for tire inflation pressure are generated and stored for the tire, the maps correlating a range of load levels to a range of signal power levels whereby operatively enabling a load level to be identified for each signal power level on an inflation pressure adjusted basis. | 03-13-2014 |
| 20140196530 | Tyre Pressure Monitor - A tyre pressure monitor for the paired wheels at one end of a vehicle axle in the form of a hub which bolts to the wheel using the wheel nuts. The hub contains a tyre pressure gauge for the inner wheel and a gauge for the outer wheel. Air tubes connect each tyre to the gauge and an exterior air input coupling for each tyre projects from the hub in order to be accessible to the depot air hose. The driver reads the gauge and adjusts the tyre pressure using the air input coupling when necessary. Versions with a single gauge with a separate scale for each tyre of the pair and with one gauge for a single front wheel are described. | 07-17-2014 |
| 20140245825 | TIRE PRESSURE MONITORING WITH AUTO-SCALING PRESSURE RESOLUTION - The present disclosure relates to methods, system and devices for monitoring tire pressure data of vehicle wheel units. In an example a method of monitoring and expressing tire pressure data information is provided. The method includes selecting a first threshold pressure value for a tire to establish a first pressure range and a second pressure range. The method also includes monitoring pressure of the tire and generating signals indicative of tire pressure. The method further includes that in the first pressure range the signals are converted to digital signals according to a first conversion variable and in the second pressure range the signals are converted according to a second conversion variable. | 09-04-2014 |
| 20140260585 | TIRE SUSPENSION FUSION SYSTEM FOR ESTIMATION OF TIRE DEFLECTION AND TIRE LOAD - A system and method estimating a vehicle tire load includes a tire static load estimator estimating a static tire load using a tire attached TPMS sensor; a Kalman filter based tire deflection estimator estimating tire vertical deflection; a load variation estimator estimating the instantaneous load variation by using the tire vertical deflection information; and an output tire load estimator calculating an output load estimation mathematically by fusing the static tire load with the instantaneous load variation information. The tire deflection estimator includes a chassis accelerometer measuring a chassis vertical acceleration; and a hub accelerometer measuring a wheel hub vertical acceleration of the tire. A linear filter model receives as inputs the chassis vertical acceleration and the wheel hub vertical acceleration. | 09-18-2014 |
| 20140311232 | Vehicle Wheel and Tire Information Acquisition Device Fitting - A vehicle wheel includes a rim that extends in the wheel circumferential direction, that includes a rim hump formed in a convex form projecting to the outside in the wheel radial direction, and a through hole formed on a rim inclined face that is slanted to an inside in the wheel radial direction on an inside in a wheel width direction from a top of the rim hump. When the tire is fitted, a tire cavity region facing the rim hump is formed. The wheel includes a tire valve fitted to the through hole and a tire information acquisition device installed in the tire cavity region on the tire valve that acquires tire information on the condition of gas filling the tire cavity region. A fitting is provided between the rim inclined face and the tire information acquisition device. | 10-23-2014 |
| 20140366618 | TIRE WEAR STATE ESTIMATION SYSTEM AND METHOD - The invention relates generally to tire monitoring systems for collecting measured tire parameter data during vehicle operation and, more particularly, to a system and method for estimating tire wear state based upon such measurements. | 12-18-2014 |
| 20150013444 | TIRE PRESSURE SENSING DEVICE AND METHOD FOR THE PRODUCTION THEREOF - The invention relates to a tire pressure sensing device for detecting the tire pressure in a pneumatic tire, comprising a pressure sensor ( | 01-15-2015 |
| 20150090024 | ADJUSTABLE TIRE PRESSURE DETECTOR - An adjustable tire pressure detector is installed on a tire rim, and includes a detector body, a gas intake nozzle and a gas nozzle assembly member. The detector body includes a housing and a gas nozzle assembly hole. The gas nozzle assembly hole includes two parallel limiting contact surfaces and at least one connecting surface connecting the two limiting contact surfaces. The gas intake nozzle includes two compact surfaces corresponding to and tightly pressing against the limiting contact surfaces, at least one abutting contact surface connecting the compact surfaces and contacting with the connecting surface, and an assembly hole facing the gas nozzle assembly hole. A distance between the two compact surfaces gradually increases from the coupling section towards the gas intake section. The gas nozzle assembly member is coupled with the assembly hole of the gas intake nozzle to fasten the gas intake nozzle onto the detector body. | 04-02-2015 |
| 20150343857 | MICRO ELECTRO MECHANICAL SYSTEM, SEMICONDUCTOR DEVICE, AND MANUFACTURING METHOD THEREOF - The present invention provides a MEMS and a sensor having the MEMS which can be formed without a process of etching a sacrifice layer. The MEMS and the sensor having the MEMS are formed by forming an interspace using a spacer layer. In the MEMS in which an interspace is formed using a spacer layer, a process for forming a sacrifice layer and an etching process of the sacrifice layer are not required. As a result, there is no restriction on the etching time, and thus the yield can be improved. | 12-03-2015 |
| 20160025585 | IMPROVED PRESSURE SENSOR COMPRISING A HERMETIC CASING - A pressure sensor includes an encapsulant housing an electronic member. The electronic member includes a proof body, which has two opposite sides facing away from each other. On a first side of the proof body is a reference-pressure chamber. On a second side of the proof body facing away from the first side is a pressure-to-be-measured chamber in communication with outside of the encapsulant. Delimited between the electronic member and the encapsulant is a housing for gel. An orifice enables the housing for gel to be in communication with outside of the encapsulant. | 01-28-2016 |
| 20160129737 | TIRE WEAR COMPENSATED LOAD ESTIMATION SYSTEM AND METHOD - A system and method of estimating a load bearing on a vehicle tire includes an inflation pressure measuring sensor for measuring an inflation pressure level within a tire cavity; a contact patch length sensor measuring the rolling contact patch length of the tire; a tire rolling speed sensor measuring a rolling speed of the tire; and a tire wear state estimation calculator estimating a tire wear state of a tread of the tire. An artificial neural network estimates a tire load from the contact patch length, the inflation pressure level, and the tire rolling speed by utilizing as a compensation factor input the estimated tire wear state. | 05-12-2016 |
| 20160167463 | MEASUREMENT MODULE AND ASSEMBLY METHOD FOR SUCH A MODULE ON A WHEEL RIM | 06-16-2016 |
| 20170232807 | TIRE PRESSURE MONITORING UNIT HAVING A TWO-COMPONENT HOUSING | 08-17-2017 |
| 20170234745 | FLEXIBLE SENSORS AND METHODS FOR MAKING THE SAME | 08-17-2017 |
