摘要:
A tire module for sensing wheel and/or tire state variables is provided. The module includes at least one acceleration switch which determines a wheel state variable and/or a tire state variable. A method for sensing wheel state variables and/or tire state variables is also provided. In the method, a characteristic variable which is a measure of the length of the contact area of the tire or the contact area run-through time is determined by an acceleration switch.
摘要:
A tire module for detecting tire condition variables, the module being mounted on an inside of a tire in an area deformed during tread shuffle and including at least one carrier, on which at least one electronic component is disposed, and at least one piezo-sensitive sensor, the piezo-sensitive sensor being disposed such that it is at least partially deformed during deformation of the tire during tread shuffle, and the deformation of the piezo-sensitive sensor being used to determine at least one shuffle variable, and the tire module including at least one battery for at least partially supplying energy to the at least one electronic component, and to use of the tire module.
摘要:
Tire module for the detection of tire state quantities which includes a printed circuit board and a piezoelectric transducer with a housing and at least one transducer element, wherein the transducer element is coupled to piezoelectric material or consists of piezoelectric material, and wherein the piezoelectric transducer is executed as a surface-mounted device (SMD) and as such is mounted on the printed circuit board by terminal areas and is electrically connected to the printed circuit board.
摘要:
A method for determining a maximum coefficient of friction μmax between a tire and an underlying surface entails empirically determining a reference curve μref(S) of a coefficient of friction μref as a function of a slip S between the tire and an underlying reference surface, determining a first momentary slip S1 for the tire and a first momentary coefficient of friction μ1 between the tire and the underlying surface at a first instant t1, determining a second momentary slip S2 for the tire and a second momentary coefficient of friction μ2 between the tire and the underlying surface at a second instant t2, computing a slope of the curve μ(S) of the coefficient of friction μ as a function of slip S, and computing the maximum coefficient of friction μmax between the tire and the underlying surface by transforming the reference curve μref(S) on the basis of the slope of the curve μ(S).
摘要:
A method and an apparatus for determining the mileage of a tire, include measuring a first current mileage over a limited period a first time, measuring a second current mileage over a limited period a second time, providing a measurement-free rest period between the first measurement and the second measurement, and estimating the mileage during the rest period on the basis of the first current mileage and/or the second current mileage. In addition, the method is repeated, with the already performed second measurement replacing the first measurement. Since a supply of power is not needed or at least can be significantly reduced during the rest period, the power requirement for mileage determination during the life of the tire can be significantly reduced, which allows simplified supply of power for mileage determination.
摘要:
A method used for determining a profile depth or wear on a tread of a tire of a vehicle, and/or a tire characteristic, a magnetic field being detected by a magnetic field sensor disposed in the interior of the tire, particularly in the area of the tread on the tire interior, or at a distance from the tire, particularly in the area of a wheel housing or a wheel well of the vehicle, the magnetic field being transmitted or changed by at least one indicator element disposed in the tread on the tire exterior. The current wear state of the tread and/or the tire characteristic, particularly a tire type and/or permissible top speed, is determined based on output signals of the magnetic field sensor. The invention further relates to tires.
摘要:
A tire module for sensing deflection of a tire and a method of sensing deflection of the tire. The tire module includes a piezoelectric converter that is configured for installation on an inside surface of the tire. The piezoelectric converter includes at least one elastically deformable region that is formed from piezoelectric material. A deflection limiting means is configured to delimit deflection of the elastically deformable region.