Method And System For Determination Of A Wheel Position Of Wheels On a Vehicle

• US 20080196492A1
• Filed: 05/05/2006
• Published: 08/21/2008
• Est. Priority Date: 06/10/2005
• Status: Active Grant

• Current Assignee: Global Dynamix AG
• Original Assignee: Global Dynamix AG
• Inventors: Achterholt, Rainer
• Granted Patent: US 7,866,206 B2
• Time in Patent Office: Days
• US Class Current: 73/146.5
• CPC Class Codes: B60C 23/0416 allocating a corresponding wheel position on vehicle, e.g. front/left or rear/right

Abstract

Method and system for determination of wheel position of wheels on vehicles with which Coriolis forces (Chl, Chr, Cvl, Cvr) active for the wheels (Rhl, Rhr, Rvl, Rvr) of a vehicle are determined, the Coriolis forces (Chl, Chr, Cvl, Cvr) determined for the wheels (Rhl, Rhr, Rvl, Rvr) are compared with each other and the wheel positions of the wheels (Rhl, Rhr, Rvl, Rvr) of the vehicle are determined by means of the comparison.

Claims

1-34. -34. (canceled)

35. Method for determination of wheel position of wheels on a vehicle comprising the following steps:

determining the Coriolis forces active for wheels of said vehicle,

comparing the Coriolis forces determined for the wheels with each other, and

determining wheel position of the wheels on the vehicle by means of the comparison.

36. Method according to claim 35 comprising the following steps:

determining the Coriolis forces active for the vehicle, and

comparing the Coriolis forces determined for the wheels with each other using Coriolis forces determined for the vehicle as reference quantity.

37. Method according to claim 35 comprising the following step:

determining the Coriolis forces active for the wheels of the vehicle in which Coriolis accelerations active for the wheels are determined.

38. Method according to claim 35 comprising the following step:

determining the wheel for which essentially no or the smallest Coriolis forces were determined as the spare tire of the vehicle.

39. Method according to claim 35 comprising the following step:

determining the wheel for which the greatest Coriolis forces were determined as the front wheel of the vehicle, for a vehicle with two wheels.

40. Method according to claim 35 comprising the following step:

determining the wheel for which the smallest Coriolis forces were determined as the rear wheel of the vehicle, for a vehicle with two wheels.

41. Method according to claim 35 comprising the following steps:

determining the Coriolis forces active for the wheels of the vehicle so that the signals indicating the active Coriolis forces are produced, which have different signs for wheels on different sides of the vehicle, and

determining the wheels for which signals indicating Coriolis forces of the same sign were determined as wheels on one side of the vehicle, for a vehicle with four wheels.

42. Method according to claim 36 comprising the following step:

determining the Coriolis forces active for the vehicle so that the signals indicating the active Coriolis forces are produced whose signs differ for curves in different directions.

43. Method according to claim 36 comprising the following step:

determining the wheels arranged on one side of the vehicle and the wheels arranged on the other side of the vehicle by comparison of the signs of signals indicating the Coriolis forces active for wheels of the vehicle and the signs of signals indicating the Coriolis forces active for the vehicle.

44. Method according to claim 35 comprising the following step:

determining the wheels for which essentially the same Coriolis forces were determined and whose Coriolis forces are smaller in comparison with the Coriolis forces of the other wheels as the rear wheels of the vehicle.

45. Method according to claim 44 comprising the following step:

determining the wheels whose Coriolis forces are greater in comparison with the Coriolis forces of the rear wheels as the front wheels of the vehicle.

46. Method according to claim 35 comprising the following steps:

performing the steps according to claim 35 on a vehicle whose front wheels have a camber,

determining the wheels for which signals indicating the Coriolis forces indicate essentially the same Coriolis forces and have different signs as rear wheels, and

determining the other wheels for which signals indicating the Coriolis forces indicate Coriolis forces of different size and have different signs as front wheels.

47. Method according to claim 44 comprising the following steps:

performing the steps according to claim 44 for a vehicle whose front wheels have a positive camber, and

determining the front wheel whose Coriolis forces are smaller in comparison with the Coriolis forces of the other front wheel as the inside front wheel of the vehicle.

48. Method according to claim 44 comprising the following steps:

performing the steps according to claim 44 for a vehicle whose front wheels have a negative camber, and

determining the front wheel whose Coriolis forces are greater in comparison with the Coriolis forces of the other front wheel as the inside front wheel of the vehicle.

49. Method according to claim 35 comprising the following steps:

determining the path forces active for the wheels of the vehicle,

comparing the path forces determined for the wheels with each other, and

determining a wheel position on different sides of the vehicle by means of the comparison.

50. Method according to claim 35 comprising the following steps:

performing the steps according to claim 35 after each new start of the vehicle, and

assigning the wheel positions to the wheels up to the next new start.

51. Method according to claim 35 comprising the following step:

performing the steps according to claim 35 after a first startup of the vehicle or only after a wheel change, and

assigning the wheel positions to the wheels up to the next wheel change.

52. System for determination of wheel position of wheels on a vehicle comprising:

a control with a receiving device (An), and

wheel units (REvl, REvr, REhl, REhr) each of which are provided for one wheel of a vehicle and include

a wheel sensor arrangement to record Coriolis forces active for the corresponding wheel and to produce signals indicating the determined Coriolis forces, and

a transmission device to transmit signals of the wheel sensor arrangement to the receiving device (An) of the control in which

the control is set up to compare the Coriolis forces determined for the wheels based on the transmitted signals and to determine the wheel position of the wheels on the vehicle by means of the comparison.

53. System according to claim 52 comprising:

a central unit (ZE) which includes;

a central sensor arrangement to record Coriolis forces active for the vehicle and to produce signals indicating the determined Coriolis forces, and

a central transmission device to transmit signals of the central sensor arrangement to the receiving device of the control, in which

the control is set up to compare the Coriolis forces determined for the wheels with each other using the Coriolis forces determined for the vehicle as reference quantity.

54. System according to claim 52 wherein:

the control is laid out to determine the wheel for which essentially no or the smallest Coriolis forces as the spare tire of the vehicle.

55. System according to claim 52 wherein:

the control is laid out to determine the wheel for which the largest Coriolis forces as the front wheel of the vehicle when the vehicle is a vehicle with two wheels.

56. System according to claim 52 wherein:

the control is laid out to determine the wheel for which the smallest Coriolis forces as the rear wheel of the vehicle when the vehicle is a vehicle with two wheels.

57. System according to claim 52 wherein:

the wheel sensor arrangements are designed in order to determine Coriolis forces active for the wheels of a vehicle so that the signals indicating the active Coriolis forces are produced that have different signs for wheels on different sides of the vehicle and the control is laid out to determine the wheels for which signals indicating Coriolis forces of the same sign as the wheels on one side of the vehicle when the vehicle is a vehicle with four wheels.

58. System according to claim 53 wherein:

the central unit (ZE) is laid out to determine the Coriolis forces active for the vehicle so that the signals indicating the active Coriolis forces are produced whose signs differ for curves in different directions.

59. System according to claim 53 wherein:

the control is laid out to determine the wheels arranged on one side of the vehicle and the wheels arranged on the other side of the vehicle by comparison with the signs of the signals indicating Coriolis forces active for the wheels and the signs of the signals indicating Coriolis forces active for the vehicle.

60. System according to claim 53 wherein:

the control is laid out to determine the wheels for which essentially the same Coriolis forces were determined and whose Coriolis forces are smaller in comparison with the Coriolis forces of the other wheels as the rear wheels of the vehicle.

61. System according to claim 60 wherein:

the control is laid out to determine the wheels whose Coriolis forces are larger in comparison with the Coriolis forces of the rear wheels as the front wheels of the vehicle.

62. System according to claim 52 for use in a vehicle whose front wheels have a camber, wherein:

the control is laid out to determine the wheels for which signals indicating the Coriolis forces indicate essentially the same Coriolis forces and have different signs, as the rear wheels, and

the control is laid out to determine the other wheels, for which signals indicating the Coriolis forces indicate different Coriolis forces and have different signs, as the front wheels.

63. System according to claim 61 for use in a vehicle whose front wheels have a positive camber, wherein:

the control is laid out to determine the front wheel whose Coriolis forces are smaller in comparison with the Coriolis forces of the other front wheel as the inside front wheel of the vehicle.

64. System according to claim 61 for use in a vehicle whose front wheels have a negative camber, wherein:

the control is laid out to determine the front wheel whose Coriolis forces are greater in comparison with the Coriolis forces of the other front wheel as the inside front wheel of the vehicle.

65. System according to claim 52 wherein:

the wheel sensor arrangements are laid out to record path forces active for the corresponding wheel and to produce signals indicating the determined path forces, and

the control is laid out to compare the path forces determined for the wheels with each other and to determine wheel positions on different sides of the vehicles by means of the comparison.

66. System according to claim 52 wherein:

the wheel sensor arrangements each include at least one acceleration sensor in order to determine the Coriolis forces active for the wheels of the vehicle to record Coriolis accelerations active for the wheels of the vehicle.

67. System according to claim 66 wherein:

the wheel sensor arrangements are set up to produce signals that indicate the determined Coriolis accelerations, and

the control is set up to determine the wheel positions of the wheels by means of signals indicating Coriolis accelerations.

68. System according to claim 66 wherein:

the wheel sensor arrangements are set up to produce signals based on the determined Coriolis accelerations that indicate the corresponding Coriolis forces.