An indicator (31) is to be attached to a target object that is the target of determination of a degradation state, the indicator having color components to be extracted by a degradation state determination apparatus that includes a degradation state model and a color change database for determining…
The tire 10 is a tire 10 having a smooth pattern with substantially no grooves on a tread surface 11 of a tread portion 1 including tread rubber 1a, wherein on a side portion outer surface 21 of the tire 10, a plurality of ridges 30 protruding from the side portion outer surface 21 and extending in…
A tire management device includes: a data acquiring unit 102 that acquires data D1 indicating a worn state of each tire 10 mounted on a mobile object M1 including an aircraft or a vehicle, operation data D2 of the mobile object, and internal pressure time-series data D3 of a tire; a tire change…
A tire wear prediction system predicts the wear of tires mounted on a vehicle comprising a fleet. The tire wear prediction system sets a driver-related coefficient to be applied to the driver-related explanatory variable and a vehicle-related coefficient to be applied to the vehicle-related…
The tire is a tire having a smooth pattern with substantially no grooves on a tread surface of a tread portion including tread rubber , wherein on a side portion outer surface of the tire , a plurality of ridges protruding from the side portion outer surface and extending in the tire…
A tire and a tire wear indicating structure thereof are disclosed. The tire wear indicating structure includes an indicator, at least three inclined portions of different heights, and at least two indicating grooves. The indicator has an indicator depth. The inclined portions are adjacently…
A tire () for a passenger vehicle comprises a tread comprising at least one regulation wear indicator () defining a regulation wear threshold, a tread layer () comprising an elastomeric tread material exhibiting a complex dynamic shear modulus G*_1 and a dynamic loss tanD0_1, and a backing layer ()…
A drive wheel for a power drive unit of a cargo handling system is disclosed. One aspect of the drive wheel is that it includes one or more wear indicators for a tire of the drive wheel. Another aspect of the drive wheel is that it includes one or more features (e.g., at least one protrusion, alone…
A pneumatic tire comprising a tread (25), a belt structure (40, 50, 60, 70, 80) and a carcass (31) is disclosed. The belt structure comprises a zigzag belt structure (60) and a contrasting colored wear indicator structure (50) located either radially inward of the zigzag belt structure (60) or…
Vehicle pneumatic tire with a tread including at least one wear indicator (5), which is positioned in a circumferential groove (1) bounded by a groove bottom (2) and two groove flanks (3, 3'), wherein the wear indicator (5) comprises three indicator parts (6, 7, 8), which have indicator surfaces…
The invention relates to a vehicle pneumatic tire with a tread comprising at least one wear indicator (5; 15) which extends in a circumferential groove (1) and is composed of indicator parts (6, 7, 8; 16, 17, 18) of differing heights, whose heights (h1, h2, h3; h4, h5, h6) are determined in the…
A system for monitoring wear of a vehicle part is disclosed. The system comprises a piezoelectric disk (210) electrically connected to a radio frequency circuit (220) for receiving electrical current from the piezoelectric disk (210); and an antenna (230) for transmitting a signal from the radio…
An object is to make it make it possible to, before a protecting layer is exposed, visually recognize that a final stage of wear of a tread has been reached. A pneumatic tire (10) for an aircraft has: a carcass ply (12) that spans between a pair of bead portions; a belt layer (14) that is provided…
The invention relates to a wear part (1), preferably for a vehicle, comprising a wear indicator whose appearance changes as a function of a wear state of the wear part, wherein the wear indicator comprises a multidimensional pattern (3) which is arranged on the wear part such that different levels…
A tire wear state estimation system is disclosed, the system comprising at least one tire for supporting a vehicle; tire pressure measuring means affixed to the at least one tire for measuring tire inflation pressure and for generating tire inflation pressure data; tire vertical mode measuring…
An object of the present invention is to provide a pneumatic tire capable of significantly increasing the possibility that the tire can be recycled as a base tire for a retreaded tire without so much sacrificing a product life of the tire prior to retreading. Specifically, the present inventions…
A plug-in wear sensor device for embedding into a mechanical element (12) is disclosed. The sensor device comprises at least one sensor sacrificial and wearable sensing element (32, 34, 36); power supply means (24) for supplying operational electrical power to the at least one sensing element (32…
A tire includes a tread (20) and two sidewalls (21) are located on two sides of the tread (20). The tread (20) has multiple tread grooves (22, 23) defined therein and a safety face (30) protrudes from the inner end of one of the tread grooves (22, 23). A sensing device (40) is located in the tread…
The present invention relates to a brake test stand (10) for testing vehicle brakes and for determining the brake forces acting on the respective vehicle wheel. The brake test stand comprises at least a first and a second pair of rollers (20,22;24,26) for positioning the two wheels mounted on a…
To precisely calculate the rubber index of a tire. A rubber index calculating device (12) measures, by a frictional energy measuring device (14), frictional energies of a tire in plural tire input conditions applied to the tire on the basis of the shear force and the slippage of a tire contact…
A tire tread comprising first and second shoulder regions (22, 30) and a mid-section (24) between the first and second shoulder regions (22, 30) is disclosed. The tread (10) has a tread depth (TD), an outer ground contacting surface (28), and a treadwear indicator (20) comprising first, second and…
The degree of tire wear is estimated with constancy and accuracy even when the road surface becomes rough during a vehicular run. The deformation speeds V tf and V tk of the tread of the tire are obtained respectively by calculating the levels of peaks P f and P k at contact edges appearing in the…
A sensor system for obtaining data from an elastomeric article includes at least one wireless sensor. The sensor length-scales range from nano- to micro-scale devices that are small enough to avoid becoming occlusions within the article. The article may include sensors embedded within one of the…
A tire having a rotation timing indication hole of the invention has a rotation timing indication hole comprising a multi-step hole provided in a tire tread, and respective steps of the hole have different contours from each other. Since the contour of the hole changes when the tire is worn, the…
The present subject matter generally concerns the detection of tire related anomalies in a pneumatic tire using Doppler Micro-Power Impulse Radar technology together with radar signal analyzation methodologies. More particularly, the present disclosure relates to methods and apparatus for the…
A method for estimating a tire wear life which comprises: a step of pressing at least one of a road surface simulation member and a rotatable rubber test piece against the other of the road surface simulation member and the rotatable rubber test piece such that the road surface simulation member…
At least one pair (i) of coefficients (Gi, mui) are determined. These represent the coefficient of sliding (0% = completely gripping, 100% = completely-locked skidding), and the coefficient of friction. The gradient (alphai) of the straight line passing through the origin and Gi, mui is determined…
A pneumatic tire comprises numerous inner sensor units (38) for determining operating parameters of the tire. The sensors can select measured values, and are attached to a fibre network (41) which is vulcanized into the tire. The network fibres (40) are electrically conducting and can be connected…
The process for determining the tire tread depth of a tire with a profile material layer (10) and a second material layer (12), comprises emitting and receiving electromagnetic waves (8). A primary electromagnetic wave with primary characteristics is sent out by an emitter (2) and the reflected…
A process for determining an actual reference profile depth on a tire on a vehicle axle, comprises determining the wear on the profile of a tire on a second axle, using the reference profile depth, and then determining the actual reference profile depth from the wear and the wear relationship…