System for transmitting tire condition variables
First Claim
1. 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 an area of a vehicle body, comprisingat least one sensor subassembly (14, 15, 44) for the detection of tire condition variable, the at least sensor subassembly being arranged in a wheel mounted rotatably at the body by way of wheel hub (3), anda coupling device integrated into the wheel hub and composed of a rotor and a non-rotating stator for producing a field coupling, and including field coupling elements (20, 22, 27a, 27b, 29a, 29b, 30a, 30b, 34a, 34b, 39a, 39b, 42, 43) arranged opposite each other, isolated by a narrow air slot (24),wherein the wheel has a tire with a tread area and the at least one sensor subassembly is mounted in the tread area of the tire,wherein a rotating part of a coupling device for establishing an electrically conductive and detachable connection of the sensor device with a non-rotating part of the coupling device is arranged in the vehicle wheel,and wherein an energy supply subassembly (13′
- , 44) cooperates with the at least one sensor subassembly (15) stationarily fixed in the tread area of the tire by way of a field coupling (16) for the energy supply of the measuring device, wherein the transmission of energy occurs in the way of a transponder.
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Accused Products
Abstract
The present invention relates to a system for transmitting tire condition variables from a transmission device mounted on a motor vehicle to an electronic evaluating or control unit arranged in the area of the vehicle body, which is detachably fastened to a motor vehicle wheel described hereinbelow for providing an electromechanical compound arrangement.
Further, a transmission device is disclosed wherein tire condition variables can be detected, and wherein a coupling device is integrated into the wheel hub (3) and composed of a rotor and a non-rotating stator for producing a field coupling, and its one or more field coupling elements are arranged opposite one another, separated by a narrow air slot (24), and energy and/or signals are coupled by means of electric fields and/or magnetic fields and/or electromagnetic fields.
Still further, the system contains a vehicle wheel equipped with sensors, consisting of wheel rim (1), pneumatic tire (2), and a sensor subassembly (13, 13′, 14, 15, 44) which rotates with the wheel. The wheel has a signal connection that can be connected to the transmission device.
16 Citations
26 Claims
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1. 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 an area of a vehicle body, comprising
at least one sensor subassembly (14, 15, 44) for the detection of tire condition variable, the at least sensor subassembly being arranged in a wheel mounted rotatably at the body by way of wheel hub (3), and a coupling device integrated into the wheel hub and composed of a rotor and a non-rotating stator for producing a field coupling, and including field coupling elements (20, 22, 27a, 27b, 29a, 29b, 30a, 30b, 34a, 34b, 39a, 39b, 42, 43) arranged opposite each other, isolated by a narrow air slot (24), wherein the wheel has a tire with a tread area and the at least one sensor subassembly is mounted in the tread area of the tire, wherein a rotating part of a coupling device for establishing an electrically conductive and detachable connection of the sensor device with a non-rotating part of the coupling device is arranged in the vehicle wheel, and wherein an energy supply subassembly (13′ - , 44) cooperates with the at least one sensor subassembly (15) stationarily fixed in the tread area of the tire by way of a field coupling (16) for the energy supply of the measuring device, wherein the transmission of energy occurs in the way of a transponder.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
Specification