Wheel Unit, Central Unit and System for Localizing a Plurality of Wheels on a Vehicle
First Claim
Patent Images
1. A wheel unit configured to transmit a transmit signal at a predefined rotational position of a wheel rotating around a rotational axis, when the wheel unit is attached to the wheel.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments of the present invention provide a wheel unit configured to transmit a transmit signal at a predefined rotational position of a wheel rotating around a rotational axis, when the wheel unit is attached to the wheel.
-
Citations
29 Claims
- 1. A wheel unit configured to transmit a transmit signal at a predefined rotational position of a wheel rotating around a rotational axis, when the wheel unit is attached to the wheel.
-
8. A central unit for localizing a wheel on a vehicle, wherein the central unit comprises a memory having stored thereon a plurality of reference information, the plurality of reference information corresponding to locations of the wheel on the vehicle;
-
wherein the central unit is configured to receive a receive signal based on a transmit signal transmitted by a wheel unit over a communication channel between the wheel unit and the central unit at a predefined rotational position of the wheel that the wheel unit is attached to; and wherein the central unit is configured to derive an information from the receive signal and to localize the wheel on the vehicle based on a comparison between the plurality of reference information and the information. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A system for localizing a plurality of wheels on a vehicle, the system comprising:
-
a central unit with a memory having stored thereon a plurality of reference information, the plurality of reference information corresponding to locations of the plurality of wheels on the vehicle; a first wheel unit attached to a first wheel of the plurality of wheels and a second wheel unit attached to a second wheel of the plurality of wheels, wherein the first wheel unit is configured to transmit a first transmit signal at a predefined rotational position of the first wheel, and wherein the second wheel unit is configured to transmit a second transmit signal at a predefined rotational position of the second wheel; wherein the central unit is configured to receive a first receive signal based on the first transmit signal transmitted by the first wheel unit over a communication channel between the first wheel unit and the central unit, and to receive a second receive signal based on the second transmit signal transmitted by the second wheel unit over a communication channel between the second wheel unit and the central unit; and wherein the central unit is further configured to derive a first information from the first receive signal and a second information from the second receive signal, and to localize the first wheel on the vehicle based on a comparison between the plurality of reference information and the first information, and to localize the second wheel on the vehicle based on a comparison between the plurality of reference information and the second information. - View Dependent Claims (16, 17, 18, 19, 20, 21)
-
-
22. A method for providing a plurality of reference information for a system for localizing a plurality of wheels on a vehicle, the system comprising a first wheel unit attached to a first wheel of the plurality of wheels and configured to transmit a first transmit signal, a second wheel unit attached to a second wheel of the plurality of wheels and configured to transmit a second transmit signal, and a central unit with a memory for storing a plurality of reference information, the plurality of reference information corresponding to locations of the plurality of wheels on the vehicle, wherein the central unit is configured to receive a first receive signal based on the first transmit signal transmitted by the first wheel unit over a communication channel between the first wheel unit and the central unit, and to receive a second receive signal based on the second transmit signal transmitted by the second wheel unit over a communication channel between the second wheel unit and the central unit, the method comprising:
-
continuously transmitting the first transmit signal by the first wheel unit during a full rotation of the first wheel and continuously transmitting the second transmit signal by the second wheel unit during a full rotation of the second wheel; recording a pattern of the first receive signal during the full rotation of the first wheel and recording a pattern of the second receive signal during the full rotation of the second wheel; deriving a first information sequence from the pattern of the first receive signal and deriving a second information sequence from the pattern of the second receive signal; determining a predefined rotational position of the first and second wheel at which a first information of the first information sequence and a second information of the second information sequence comprise a difference that provides an average correct localization probability of the plurality of wheels on the vehicle of at least 60%; storing the first information and the second information on the memory of the central unit as reference information; and configuring the first and second wheel unit to transmit the first and second transmit signal at the predefined rotational position of the first and second wheel.
-
-
23. A method for localizing a plurality of wheels on a vehicle, the method comprising:
-
transmitting a first transmit signal at a predefined rotational position of a first wheel of the plurality of wheels by a first wheel unit attached to the first wheel, and transmitting a second transmit signal at a predefined rotational position of a second wheel of the plurality of wheels by a second wheel unit attached to the second wheel; receiving a first receive signal with a central unit based on the first transmit signal transmitted by the first wheel unit over a communication channel between the first wheel unit and the central unit, and receiving a second receive signal with the central unit based on the second transmit signal transmitted by the second wheel unit over a communication channel between the second wheel unit and the central unit; deriving a first information from the first receive signal and deriving a second information from the second receive signal; localizing the first wheel on the vehicle based on a comparison between a plurality of reference information and the first information, and localizing the second wheel on the vehicle based on a comparison between the plurality of reference information and the second information, the plurality of reference information corresponding to locations of the plurality of wheels on the vehicle. - View Dependent Claims (24, 25, 26, 27, 28)
-
-
29. A computer readable digital storage medium having stored thereon a computer program having a program code for performing, when running on a computer, a method for localizing a plurality of wheels on a vehicle, the method comprising:
-
transmitting a first transmit signal at a predefined rotational position of a first wheel of the plurality of wheels by a first wheel unit attached to the first wheel, and transmitting a second transmit signal at a predefined rotational position of a second wheel of the plurality of wheels by a second wheel unit attached to the second wheel; receiving a first receive signal with a central unit based on the first transmit signal transmitted by the first wheel unit over a communication channel between the first wheel unit and the central unit, and receiving a second receive signal with the central unit based on the second transmit signal transmitted by the second wheel unit over a communication channel between the second wheel unit and the central unit; deriving a first information from the first receive signal and deriving a second information from the second receive signal; localizing the first wheel on the vehicle based on a comparison between a plurality of reference information and the first information, and localizing the second wheel on the vehicle based on a comparison between the plurality of reference information and the second information, the plurality of reference information corresponding to locations of the plurality of wheels on the vehicle.
-
Specification