Wheel localizer, wheel localization device, system, method and computer program for locating a position of a wheel

Patent metadata

Field	Value
Publication number	US-10093137-B2
Application number	US-201514982721-A
Country	US
Kind code	B2
Filing date	Dec 29, 2015
Priority date	Aug 27, 2012
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

Embodiments provide a device, a system, a method and a computer program for locating a plurality of positions of a plurality of wheels on a vehicle. The device comprises an input to obtain information related to a position of one wheel from the plurality of wheels, and a detector to obtain information related to rotational frequencies of the one wheel and of at least one other wheel of the plurality of wheels. The device further comprises a locator coupled to the input and to the detector. The locator is configured to determine information related to the position of the at least one other wheel based on the information related to the position of the one wheel and based on the information related to the rotational frequencies. Additionally or alternatively, an embodiment of the device may comprise one or more inputs to obtain information related to rotational frequencies of the plurality of wheels and information related to accelerations at the plurality of wheels. The device may further comprise a locator coupled to the one or more inputs. The locator is configured to determine the plurality of positions of the plurality of wheels based on the information related to the rotational frequencies of the plurality of wheels and based on the information related to the accelerations at the plurality of wheels.

First claim

What is claimed is:

1. A device for locating a plurality of positions of a plurality of wheels on a vehicle, comprising:
an input to obtain information related to a position of one wheel from the plurality of wheels;
a detector to obtain information related to rotational frequencies of the one wheel and of at least one other wheel of the plurality of wheels; and
a locator coupled to the input and to the detector, wherein the locator is configured to determine information related to the position of the at least one other wheel based on the information related to the position of the one wheel and based on the information related to the rotational frequencies.

2. The device of claim 1 , wherein the locator is configured to determine the information related to the position of the at least one other wheel based on at least one predetermined relation between a rotational frequency of the one wheel and a rotational frequency of the at least one other wheel, and/or wherein the detector comprises at least one of an acceleration sensor, an energy harvester, a shock sensor, a tire pressure monitoring system sensor, or an optical sensor to obtain a signal comprising the information related to the rotational frequencies of the one wheel and the at least one other wheel.

3. The device of claim 1 , wherein the input is configured to receive the information related to the position of the one wheel of the plurality of wheels from a radio frequency receiver, and/or wherein the information related to the position of the at least one wheel comprises information related to an identification of a tire pressure measurement module of a wheel at a predetermined position.

4. The device of claim 1 , wherein the locator is configured to use information on rotational frequencies for each of the plurality of wheels on the vehicle and to determine a position for each of the plurality of wheels on the vehicle based on the information on the plurality of rotational frequencies and the information related to the position of the one wheel.

5. The device of claim 4 , wherein the locator is configured to assign predefined positions on the vehicle to each of the plurality of wheels based on the information related to the plurality of rotational frequencies and information related to relations between the rotational frequencies of the plurality of wheels, wherein the relations are based on the geometry of predetermined positions of the plurality of wheels.

6. The device of claim 1 , wherein the vehicle is a car comprising four wheels as plurality of wheels, wherein the detector is configured to determine information related to relations of rotational frequencies of the four wheels, wherein the locator is configured to assign a predetermined position to each of the four wheels, wherein the locator is configured to assign the two wheels with the highest rotational frequencies to one side of the vehicle and the two wheels with the lowest rotational frequencies to the other side of the vehicle.

7. The device of claim 6 , wherein the locator is configured to determine a relation of the rotational frequencies between the one wheel and a wheel assigned to the same side as the one wheel, wherein the locator is configured to assign predetermined positions to the other wheels on the other side of the vehicle using the same relation.

8. The device of claim 1 , further comprising a memory coupled to the input, wherein the memory is configured to store the information related to a position of one wheel from the plurality of wheels.

9. The device of claim 8 , wherein the information related to a position of one wheel from the plurality of wheels comprises an identification code of a measurement device at a predetermined position of the vehicle.

10. The device of claim 9 , wherein the detector is configured to ascertain the rotational frequency of the wheel associated with the identical code and assign the rotation frequency thereto.

Assignees

• Infineon Technologies Ag

Inventors

• Peine Andre
• Kandler Michael
• Bodini Emanuele Bruno

Classifications

• B60C2019/004

  Tyre sensors other than for detecting tyre pressure · CPC title

• B60C23/0488

  Movement sensor, e.g. for sensing angular speed, acceleration or centripetal force · CPC title

• G01B7/30

  for measuring angles or tapers; for testing the alignment of axes · CPC title

• B60C23/0416 Primary

  allocating a corresponding wheel position on vehicle, e.g. front/left or rear/right · CPC title

• B60C19/00

  Tyre parts or constructions not otherwise provided for · CPC title