Patent US4206997A successfully refreshed from Google Patents.
Patent US6002248A successfully refreshed from Google Patents.
US6002248A
Expired / Lapsed
US
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Antifriction bearing including microsensor for determining parameters, in particular wheel bearing for motor vehicles
Assignee: IHO Holding GmbH and Co KG
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Filing: 1997-03-31
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Granted: 1999-12-14
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Expires: 2017-03-31
Abstract
Abstract In order to achieve direct digital data recording and reliable and space saving and cost saving recording of the status of an antifriction bearing, in particular a wheel bearing for motor vehicles, sensors record the rotational speed and acceleration of the wheels and driving and/or braking forces. The sensors are microsensors in the form of microswitch arrays, at least one of which is attached to the rotating ring of the bearing, and the generated signals are compared with stored basic patterns or with the signals of an identical or similar microsensor arranged on the stationary ring of the bearing and/or are evaluated.
Inventors
- 👤 Josef Binder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:03
CPC Classifications
F; F16; F16C; F16C41/00; G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/0888; G01P15/125; G01P15/135; G01P15/18; G01P3/00; G01P3/42; G01P3/44; G01P3/443; B; B60; B60G; B60G2204/00; B60G2204/10; B60G2204/11; B60G2204/115; F16C19/00; F16C19/02; F16C19/14; F16C19/18; F16C19/181; F16C19/183; F16C19/184; F16C19/185; F16C41/008
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
107 words
An antifriction bearing including an outer ring and an inner ring wherein the rings are relatively rotatable and bearing rolling elements between the inner and outer rings; a microsensor for recording rotational speed or acceleration and various driving and braking forces between the rings; the microsensor being in the form of a microswitch array attached to the rotating one of the rings, and the microswitch array being adapted to generate a signal that is to be compared with another signal to sense at least one of the factors comprising the speed, acceleration, driving forces and braking forces on the one ring with reference to the other ring.
Claim 2
Dependent Claim
107 words
An antifriction bearing including an outer ring and an inner ring wherein the rings are relatively rotatable and bearing rolling elements between the inner and outer rings; a microsensor for recording rotational speed or acceleration and various driving and braking forces between the rings; the microsensor being in the form of a microswitch array attached to the rotating one of the rings, and the microswitch array being adapted to generate a signal that is to be compared with another signal to sense at least one of the factors comprising the speed, acceleration, driving forces and braking forces on the one ring with reference to the other ring.
Claim 3
Dependent Claim
37 words
The antifriction bearing with sensors of claim 1, further comprising comparison means with which the signal from the microswitch array on the rotating part of the bearing is compared for sensing at least one of the factors.
Claim 4
Dependent Claim
20 words
The antifriction bearing with sensors of claim 2, wherein the comparison means comprises means of storing a basic pattern signal.
Claim 5
Dependent Claim
50 words
The antifriction bearing of claim 1, further comprising a second microsensor attached to the stationary one of the bearing rings and generating a comparison signal and means for comparing the signals of the first sensor with the signals of the second sensor for determining at least one of the factors.
Claim 6
Dependent Claim
84 words
The antifriction bearing of claim 1, wherein the microsensor comprises a microsize array of moveable bending bars arranged in an array of bending bars in a system, the bars being oriented and adapted to move laterally under the influence of force, and respective stops positioned for being contacted by each of the bending bars upon the application of certain forces to the bars, the stops being connected for generating a signal when contacted by the respective bar for producing the signal of the microsensor.
Claim 7
Dependent Claim
32 words
The bearing of claim 4, wherein the laterally movable bending bars are each respectively differently mounted, shaped and oriented as to provide responses at different levels of force applied to the bearing.
Claim 8
Dependent Claim
70 words
The bearing of claim 6, wherein the bending bars each have respective characteristics selected from the group consisting of different properties of the bar for bending to different extents, different operating points where the extent of bending causes the sensor to sense, varying differences between the stops for the bending bars for causing sensing at different force levels including varying dimensions of the bending bars including the length of bars.
Claim 9
Dependent Claim
22 words
The bearing of claim 1, wherein the microsensor is arranged on a chip which is fixed with respect to the respective ring.
Claim 10
Dependent Claim
33 words
The antifriction bearing of claim 1, wherein the microswitch array has variable characteristics that are selected from the group consisting of different switching times, different sensitivities, different resonant frequencies and different damping systems.
Claim 11
Dependent Claim
25 words
The antifriction bearing of claim 1, wherein energy supplied to the microswitch array at the moving ring of the bearing is by means of telemetry.
Claim 12
Dependent Claim
26 words
The antifriction bearing of claim 1, wherein energy supplied to the microswitch array on the moving ring of the bearing is by means of inductive coupling.
Claim 13
Dependent Claim
23 words
The antifriction bearing of claim 11, wherein the inductive coupling comprises coils in the moving ring which comprise electroplated and microstructured planar coils.
Claim 14
Dependent Claim
20 words
The antifriction bearing of claim 1, wherein the signal transmission from the rotating microswitch array is by means of telemetry.
Claim 15
Dependent Claim
21 words
The antifriction bearing of claim 1, wherein the signal transmission from the rotating microswitch array is by means of inductive coupling.
Claim 16
Dependent Claim
28 words
The antifriction bearing of claim 3, wherein energy supplied to and signal transmission from the comparison means at the stationary ring of the bearing is accomplished by telemetry.
Claim 17
Dependent Claim
26 words
The antifriction bearing of claim 3, wherein energy supplied to and signal transmission from the stationary ring of the bearing is accomplished by cable transmission thereto.
Claim 18
Dependent Claim
17 words
The antifriction bearing of claim 5, wherein the microsensor array comprises up to about 50 individual bars.
Claim 19
Dependent Claim
48 words
The antifriction bearing of claim 1, further comprising a chip supporting two of the microsensor arrays on the moving one of the rings, one of the arrays being arranged parallel to and the other array being arranged perpendicular to the radially acting centrifugal force on the rotating microsensor.
Claim 20
Dependent Claim
88 words
The antifriction bearing of claim 8, wherein the microsensor comprises a microsize array of moveable bending bars arranged in an array of bending bars in a system arranged on the chip, the bars being oriented and adapted to move laterally under the influence of force, and respective stops positioned for being contacted by each of the bending bars upon the application of certain forces to the bars, the stops being connected for generating a signal when contacted by the respective bar for producing the signal of the microsensor.
Claim 21
Independent Claim
171 words
A method of sensing for recording the rotational speed or acceleration of wheels and driving and braking forces of a vehicle, wherein the vehicle has a plurality of wheels, and has a respective antifriction bearing at each of the wheels, with one ring of the bearing being connected with the wheel for rotating therewith and the other ring of the bearing being connected with the vehicle; a respective sensor for recording the rotational speed, acceleration of the wheel and driving and braking forces on the wheel, wherein each of the sensors is designed as a microsensor in the form of a microswitch array attached to the moving ring of the bearing and generating a signal upon rotation of the wheel; the method ring comprising comparing the generated signal with another signal for determining the speed, acceleration, driving and braking forces on the wheel, and evaluating the signals of all of the sensors on all of the wheels for determining the factors of speed, acceleration, driving and braking forces on the vehicle.
Claim 22
Independent Claim
171 words
A method of sensing for recording the rotational speed or acceleration of wheels and driving and braking forces of a vehicle, wherein the vehicle has a plurality of wheels, and has a respective antifriction bearing at each of the wheels, with one ring of the bearing being connected with the wheel for rotating therewith and the other ring of the bearing being connected with the vehicle; a respective sensor for recording the rotational speed, acceleration of the wheel and driving and braking forces on the wheel, wherein each of the sensors is designed as a microsensor in the form of a microswitch array attached to the moving ring of the bearing and generating a signal upon rotation of the wheel; the method ring comprising comparing the generated signal with another signal for determining the speed, acceleration, driving and braking forces on the wheel, and evaluating the signals of all of the sensors on all of the wheels for determining the factors of speed, acceleration, driving and braking forces on the vehicle.
Claim 23
Dependent Claim
101 words
The method of claim 20, wherein the microsensor comprises a microsize array of moveable bending bars arranged in an array of bending bars in a system, the bars being oriented and adapted to move laterally under the influence of force, and respective stops positioned for being contacted by each of the bending bars upon the application of certain forces to the bars, the stops being connected for generating a signal when contacted by the respective bar for producing the signal of the microsensor; the method comprising modifying the switching patterns of the bending bars as a digital word which is evaluated.
Claim 24
Dependent Claim
58 words
The method of claim 20, comprising comparing the rotational speed of the wheels, the lateral forces on the rotating and stationary part of each bearing, the tangential force or angular acceleration on the rotating system, the lateral forces and indirectly, by comparing the lateral acceleration with the angular acceleration, the slip being recorded for evaluating the travelling status.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-13 | 2003-06-14 | 2003-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-13 | 2007-06-14 | 2007-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-13 | 2011-06-14 | 2011-12-14 | $7700.00 | Window Closed / Lapsed |