Transmission system for tire state quantities
First Claim
1. A transmission device for a motor vehicle for transmitting signals about tire condition variables from a wheel to an electronic unit arranged in the vehicle body, wherein the tire condition variables can be detected especially by one or a plurality of sensor subassemblies (14) which are arranged in a wheel rotatably mounted at the body above the wheel hub (3), the device comprising:
- a coupling device is integrated into a wheel hub, which is composed of a rotor (6a) and a non-rotating stator (6b) to generate a field coupling, and whose one or more field coupling elements (20, 22, 34a, 34b, 39a, 39b) are opposite each other, separated by a narrow air slot (24), and a signal coupling takes place by at least one of electric fields, magnetic fields, and electromagnetic fields, and least one of the rotor (6a) and the stator (6b) is subdivided in a circumferential direction into two or more sectors, with the sectors including a differing magnetic coupling for a rotational-speed-responsive field coupling of rotor (6a) and stator (6b); and
wherein the two or more sectors are alternately arranged in the circumferential direction such that the field coupling has an alternating output resulting from the differing magnetic coupling.
1 Assignment
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Accused Products
Abstract
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 (14) which are arranged in a wheel rotatably mounted at the body above the wheel hub (3), characterized in that a coupling device is integrated into the wheel hub, which is composed of a rotor (6a) and a non-rotating stator (6b) to generate a field coupling, and whose one or more field coupling elements (20, 22, 27a, 27b, 29a, 29b, 30a, 30b, 34a, 34b, 39a, 39b, 42, 43) are opposite each other, separated by a narrow air slot (24), and an energy and/or signal coupling takes place by way of electric fields and/or magnetic fields, and/or electromagnetic fields, is meant to determine the rotational speed of the wheel. To this end, the rotor (6a) and/or the stator (6b) is subdivided in a circumferential direction into two or more sectors, with the sectors having a differing permeability for a rotational-speed-responsive field coupling of rotor (6a) and stator (6b).
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Citations
41 Claims
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1. A transmission device for a motor vehicle for transmitting signals about tire condition variables from a wheel to an electronic unit arranged in the vehicle body, wherein the tire condition variables can be detected especially by one or a plurality of sensor subassemblies (14) which are arranged in a wheel rotatably mounted at the body above the wheel hub (3), the device comprising:
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a coupling device is integrated into a wheel hub, which is composed of a rotor (6a) and a non-rotating stator (6b) to generate a field coupling, and whose one or more field coupling elements (20, 22, 34a, 34b, 39a, 39b) are opposite each other, separated by a narrow air slot (24), and a signal coupling takes place by at least one of electric fields, magnetic fields, and electromagnetic fields, and least one of the rotor (6a) and the stator (6b) is subdivided in a circumferential direction into two or more sectors, with the sectors including a differing magnetic coupling for a rotational-speed-responsive field coupling of rotor (6a) and stator (6b); and wherein the two or more sectors are alternately arranged in the circumferential direction such that the field coupling has an alternating output resulting from the differing magnetic coupling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A vehicle wheel equipped with sensors, the vehicle wheel comprising:
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a wheel rim (1); a tire (2); one or more sensor subassemblies (13) rotating with the wheel, a coupling device is integrated into a wheel hub, which is composed of a rotor (6a) and a non-rotating stator (6b) to generate a field coupling, and whose one or more field coupling elements (20, 22, 34a, 34b, 39a, 39b) are opposite each other, separated by a narrow air slot (24), and a signal coupling takes place by at least one of electric fields, magnetic fields, and electromagnetic fields, and least one of the rotor (6a) and the stator (6b) is subdivided in a circumferential direction into two or more sectors, with the sectors including a differing magnetic coupling for a rotational-speed-responsive field coupling of rotor (6a) and stator (6b); and wherein the two or more sectors are alternately arranged in the circumferential direction such that the field coupling has an alternating output resulting from the differing magnetic coupling. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A system for transmitting tire condition variables, the system comprising:
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a vehicle wheel comprising; a wheel rim (1); a tire (2); one or more sensor subassemblies (13) rotating with the wheel; a transmission device for a motor vehicle for transmitting signals about tire condition variables from a wheel to an electronic unit arranged in the vehicle body, wherein the tire condition variables can be detected especially by one or a plurality of sensor subassemblies (14) which are arranged in a wheel rotatably mounted at the body above the wheel hub (3), the device comprising; a coupling device is integrated into the vehicle wheel, which is composed of a rotor (6a) and a non-rotating stator (6b) to generate a field coupling, and whose one or more field coupling elements (20, 22, 34a, 34b, 39a, 39b) are opposite each other, separated by a narrow air slot (24), and a signal coupling takes place by at least one of electric fields, magnetic fields, and electromagnetic fields, and least one of the rotor (6a) and the stator (6b) is subdivided in a circumferential direction into two or more sectors, with the sectors including a differing magnetic coupling for a rotational-speed-responsive field coupling of rotor (6a) and stator (6b); and wherein the two or more sectors are alternately arranged in the circumferential direction such that the field coupling has an alternating output resulting from the differing magnetic coupling. - View Dependent Claims (39, 40, 41)
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Specification