Patent US4989922A successfully refreshed from Google Patents.
US4989922A
Expired / Lapsed
US
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Method of anti-lock brake control for motorcycle vehicle
Assignee: ZF International UK Ltd
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Filing: 1989-11-20
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Granted: 1991-02-05
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Expires: 2009-11-20
Abstract
Abstract In an anti-lock brake system (ABS) for a motorcycle the driving stabilty is improved by measuring the position of lateral inclination of the motorcycle and adjusting at least one threshold value for the anti-skid control in response to the measurement. In another embodiment the transverse acceleration of the motor cycle is measured and an ABS threshold value adjusted accordingly.
Inventors
- 👤 Josef Pickenhahn
- 👤 Stephen P. J. Barr
- 👤 Christoph Beuerle
- 👤 Klaus Glasmacher
- 👤 Alois Weidele
- 👤 Martin Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:06
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/321; B60T8/3225; B60T8/17; B60T8/1701; B60T8/1706; B60T2210/00; B60T2210/10; B60T2210/13; Y; Y10; Y10S; Y10S303/00; Y10S303/02; Y10S303/03; Y10S303/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
A method of anti-lock brake control in a motorcycle vehicle or the like, said method comprising the steps of measuring the rotational speed of the wheels of the motorcycle vehicle and determining at least one of the parameters slip and retardation of a braked wheel, comparing the at least one measured parameter with a given threshold value, changing a pressure of the brake at the braked wheel in response to said comparison during anti-lock brake control, determining the position of lateral inclination of the motorcycle vehicle and changing said threshold value in response to said determined lateral inclination of said motorcycle vehicle.
Claim 2
Independent Claim
102 words
A method of anti-lock brake control in a motorcycle vehicle or the like, said method comprising the steps of measuring the rotational speed of the wheels of the motorcycle vehicle and determining at least one of the parameters slip and retardation of a braked wheel, comparing the at least one measured parameter with a given threshold value, changing a pressure of the brake at the braked wheel in response to said comparison during anti-lock brake control, determining the position of lateral inclination of the motorcycle vehicle and changing said threshold value in response to said determined lateral inclination of said motorcycle vehicle.
Claim 3
Dependent Claim
26 words
The method as claimed in claim 1, wherein the position of lateral inclination is measured by at least one distance meter mounted on the motorcycle vehicle.
Claim 4
Dependent Claim
44 words
The method as claimed in claim 1, wherein the position of lateral inclination is determined by measuring and comparing the wheel loads at least one wheel bearing of the motorcycle vehicle to the left and right of the center line of the motorcycle vehicle.
Claim 5
Dependent Claim
33 words
The method as claimed in claim 3, wherein the wheel loads are determined in said motorcycle vehicle which is equipped with pressurized air supported springs in response to pressure measured by pressure sensors.
Claim 6
Dependent Claim
21 words
The method as claimed in claim 3, wherein load sensors arranged in the wheel bearings serve to measure the wheel loads.
Claim 7
Dependent Claim
25 words
The method as claimed in claim 1, wherein the threshold value is adjusted more sensitively as the lateral inclination of the motorcycle vehicle becomes greater.
Claim 8
Dependent Claim
26 words
The method as claimed in claim 1, wherein the lateral inclination of the motorcycle vehicle is determined by measuring the transverse acceleration of the motorcycle vehicle.
Claim 9
Dependent Claim
43 words
The method as claimed in claim 1, wherein the course in time of the position of the handle bar of the motorcycle vehicle is measured and the presence of an inclined position of the motorcycle vehicle is determined in response to the same.
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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) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |