US5029949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit configuration for a brake system comprising an anti-locking control
Assignee: Continental Teves AG and Co OHG
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Filing: 1989-04-28
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Granted: 1991-07-09
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Expires: 2009-04-28
Abstract
Abstract A circuit configuration for a brake system including an anti-locking control system, wherein a balanced pressure course is attained in the rear wheel brakes through control according to the "select-low" principle. The circuit configuration is furnished with a supplemental circuit (8) comparing the rotating pattern of the rear wheels during the control and, upon detection of a brake moment difference (ΔM) causes a brake moment correction. This correction can be achieved, for example, by prolongating (T p , T' p ) of the pressure build-up pulses controlling the rise in pressure in the wheel exhibiting a lower brake moment.
Inventors
- 👤 Gunther Buschmann
- 👤 Paul Schwarzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:33
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/17; B60T8/176; B60T8/1764
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
100 words
A method for providing an anti-locking control system for the brakes of an automotive vehicle wherein braking pressure is applied to the rear vehicle wheels and modulated by slip control using the select-low technique, said method comprising the steps of: detecting the rotating pattern of each rear wheel; determining the brake moment of each rear wheel respectively from the detected rotating patterns; comparing the determined brake moments; detecting a difference between the brake moments; and altering the brake pressure modulation pattern of one of the rear wheels in response to the detecting difference until the brake moments are approximately equal.
Claim 2
Independent Claim
100 words
A method for providing an anti-locking control system for the brakes of an automotive vehicle wherein braking pressure is applied to the rear vehicle wheels and modulated by slip control using the select-low technique, said method comprising the steps of: detecting the rotating pattern of each rear wheel; determining the brake moment of each rear wheel respectively from the detected rotating patterns; comparing the determined brake moments; detecting a difference between the brake moments; and altering the brake pressure modulation pattern of one of the rear wheels in response to the detecting difference until the brake moments are approximately equal.
Claim 3
Dependent Claim
23 words
The method according to claim 1 including the step of delaying said altering step for a predetermined period after said difference is detected.
Claim 4
Dependent Claim
23 words
The method according to claim 1 wherein said altering step includes the step of delaying altering until a predetermined difference value is attained.
Claim 5
Dependent Claim
24 words
The method according to claim 1 wherein the brake pressure is applied to the rear vehicle wheels through control valves responsive to a controller.
Claim 6
Dependent Claim
21 words
The method according to claim 4 wherein said control valves are electromagnetic valves responsive to electrical signals provided by said controller.
Claim 7
Dependent Claim
18 words
The method according to claim 5 wherein during slip control said controller provides pulses of constant pulse duration.
Claim 8
Dependent Claim
31 words
The method according to claim 6 including the step of prolonging the duration of the pulses applied to one of said electromagnetic valves after said brake moment difference has been detected.
References Cited (Backward Citations)
US3535004A
Cited
US3917353A
Cited
US3980350A
Cited
US4005910A
Cited
US4374421A
Cited
US4679866A
Cited
US4715662A
Cited
US4643485A
Cited
US4790606A
Cited
US4765430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |