US3711162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installation for the control of the brakes of a vehicle
Assignee: Daimler Benz AG
•
Filing: 1970-03-20
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Granted: 1973-01-16
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Expires: 1990-03-20
Abstract
Abstract An installation for controlling the brakes of a vehicle, especially for preventing the locking of the wheels, which installation controls the pressure of the brake medium at one or several brakes in dependence on the friction value between the road surface and one or several wheels; a measuring apparatus such as a force-measuring cell or a displacement transmitter is included in the mounting of the brake or brakes or of the brake lining which controls a valve arranged in the line of the brake medium depending on the development of the brake force.
Inventors
- 👤 H Steinbrenner
- 👤 H Florus
- 👤 H Grossner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:20
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/17; B60T8/176; B60T8/1763; B60T8/17633; B60T8/32; B60T8/52
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
194 words
An installation for the control of the brakes of a vehicle, especially for preventing the locking of wheel means, which controls the pressure of a brake medium in a brake means of the wheel means, comprising first means for measuring the actual brake force between the wheel means and its road surface as occurs during the actuation of the brake means including means for producing a first control magnitude of the actual brake force, second means for measuring the applied brake force applied in the respective brake means including means for producing a second control magnitude of the applied brake force, valve means for controlling the pressure of the brake medium in the brake means, and control means having input and output means, said first and second control magnitudes being applied to the input means of said control means and the output means thereof being operatively connected with said valve means to actuate the valve means in the presence of a predetermined signal in the output means of said control means to prevent locking of the respective wheel means, said control means including differentiator means for differentiating both said first and second control magnitudes.
Claim 2
Dependent Claim
194 words
An installation for the control of the brakes of a vehicle, especially for preventing the locking of wheel means, which controls the pressure of a brake medium in a brake means of the wheel means, comprising first means for measuring the actual brake force between the wheel means and its road surface as occurs during the actuation of the brake means including means for producing a first control magnitude of the actual brake force, second means for measuring the applied brake force applied in the respective brake means including means for producing a second control magnitude of the applied brake force, valve means for controlling the pressure of the brake medium in the brake means, and control means having input and output means, said first and second control magnitudes being applied to the input means of said control means and the output means thereof being operatively connected with said valve means to actuate the valve means in the presence of a predetermined signal in the output means of said control means to prevent locking of the respective wheel means, said control means including differentiator means for differentiating both said first and second control magnitudes.
Claim 3
Dependent Claim
21 words
An installation according to claim 1, wherein the first means is a force-measuring cell for directly measuring the actual brake force.
Claim 4
Dependent Claim
14 words
An installation according to claim 1, wherein the first means is a displacement transmitter.
Claim 5
Dependent Claim
20 words
An installation according to claim 1, wherein the first means is built into the mounting means of the brake means.
Claim 6
Dependent Claim
14 words
An installation according to claim 4, wherein the first means is a force-measuring cell.
Claim 7
Dependent Claim
24 words
An installation according to claim 1, wherein the first means is built into the mounting means of a brake lining of the brake means.
Claim 8
Dependent Claim
14 words
An installation according to claim 6, wherein the first means is a displacement transmitter.
Claim 9
Dependent Claim
25 words
An installation according to claim 7, wherein said control means includes level switch means operatively connected with said first means and with the valve means.
Claim 10
Dependent Claim
21 words
An installation according to claim 8, wherein said control means includes comparator means operatively connected with said fist and second means.
Claim 11
Dependent Claim
48 words
An installation according to claim 9, wherein the level switch means is connected to the input of an AND circuit controlling the valve means, the other input of said AND circuit being operatively connected with a further level switch means which is operatively connected with the second means.
Claim 12
Dependent Claim
19 words
An installation according to claim 10, wherein at least one differentiator is connected ahead of the level switch means.
Claim 13
Dependent Claim
22 words
An installation according to claim 1, wherein the valve means controls the brake medium to prevent the locking of a respective wheel.
Claim 14
Dependent Claim
25 words
An installation according to claim 1, wherein the means for measuring the applied brake force is a pressure transmitter means in the brake medium line.
Claim 15
Dependent Claim
21 words
An installation according to claim 1, wherein two separately controlled valve means are arranged in the line of the brake medium.
Claim 16
Dependent Claim
21 words
An installation according to claim 14, wherein said control means includes comparator means operatively connected with said first and second means.
Claim 17
Dependent Claim
30 words
An installation according to claim 1, wherein said first and second control magnitudes are at first combined and the signal produced from such combination is differentiated in said differentiator means.
Claim 18
Dependent Claim
35 words
An installation according to claim 16, wherein said control means includes quotient forming means including input means to which are applied said first and second control magnitudes, and output means connected with said differentiator means.
Claim 19
Dependent Claim
35 words
An installation according to claim 16, wherein said control means includes differential amplifier means having input means to which are applied said first and second control magnitudes, and output means connected with said differentiator means.
Claim 20
Dependent Claim
58 words
An installation according to claim 1, wherein said differentiator means is connected with an output of each of said first and of said second means to differentiate the first and second control magnitudes separately, and wherein the control means further includes an AND element having two inputs, to which are applied the differentiated first and second control magnitudes.
Claim 21
Dependent Claim
27 words
An installation according to claim 19, wherein said first control magnitude is differentiated twice to form the second derivative prior to its application to the control means.
Claim 22
Dependent Claim
24 words
An installation according to claim 1, wherein the first means is effectively connected between a respective wheel means and a corresponding wheel support means.
Claim 23
Dependent Claim
26 words
An installation according to claim 21, wherein said second means measures the reaction force produced by the brake medium upon engagement of a respective brake means.
Claim 24
Dependent Claim
132 words
An installation for the control of brakes of a vehicle, which installation controls the pressure of a brake medium at brake means dependent on the friction value between a road surface and wheel means, characterized in that measuring means is included in wheel support means between a wheel and a fixed part of the vehicle, said measuring means responding substantially in a horizontal direction and controlling valve means arranged in a line of the brake medium in dependence on the development of the brake force, said measuring means being operatively connected with comparator means, and said comparator means being additionally operatively connected with means for detecting the applied brake force, said means for detecting the applied brake force including means for measuring the reaction force at the mounting of the brake lining.
Claim 25
Dependent Claim
132 words
An installation for the control of brakes of a vehicle, which installation controls the pressure of a brake medium at brake means dependent on the friction value between a road surface and wheel means, characterized in that measuring means is included in wheel support means between a wheel and a fixed part of the vehicle, said measuring means responding substantially in a horizontal direction and controlling valve means arranged in a line of the brake medium in dependence on the development of the brake force, said measuring means being operatively connected with comparator means, and said comparator means being additionally operatively connected with means for detecting the applied brake force, said means for detecting the applied brake force including means for measuring the reaction force at the mounting of the brake lining.
Claim 26
Dependent Claim
14 words
An installation according to claim 23, wherein the measuring means is a force-measuring cell.
Claim 27
Dependent Claim
14 words
An installation according to claim 23, wherein the measuring means is a displacement transmitter.
Claim 28
Dependent Claim
19 words
An installation according to claim 23, wherein the installation controls the pressure of the brake medium in several brakes.
Claim 29
Dependent Claim
14 words
An installation according to claim 26, wherein the measuring means is a force-measuring cell.
Claim 30
Dependent Claim
14 words
An installation according to claim 26, wherein the measuring means is a displacement transmitter.
Claim 31
Dependent Claim
42 words
An installation according to claim 23, wherein the measuring means and the detecting means for detecting the applied brake force are operatively connected with a differential amplifier which is operatively connected by way of a level switch means with the valve means.
Claim 32
Dependent Claim
19 words
An installation according to claim 29, wherein at least one differentiator is connected ahead of the level switch means.
Claim 33
Dependent Claim
42 words
An installation according to claim 23, wherein the measuring means and the detecting means for detecting the applied brake force are operatively connected with a quotient-forming means which in turn is operatively connected with a level switch means controlling the valve means.
Claim 34
Dependent Claim
19 words
An installation according to claim 31, wherein at least one differentiator is connected ahead of the level switch means.
References Cited (Backward Citations)
US2992860A
Cited
GB988261A
Cited
US3235036A
Cited
US3404758A
Cited
US3362757A
Cited
US3498683A
Cited
US3547499A
Cited
US3433536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |