Patent US4658939A successfully refreshed from Google Patents.
US4658939A
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US
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Process and apparatus for the control of a brake unit for automotive vehicles
Assignee: Continental Teves AG and Co OHG
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Filing: 1985-03-14
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Granted: 1987-04-21
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Expires: 2005-03-14
Abstract
Abstract For the control of a brake unit for automotive vehicles, electric signals are generated dependent on the operation of the brake pedal. The signals are processed in an electronic circuit (8) and logically linked to sensor signals containing information on the brake power, the braking effect and/or on the rotational behavior of the individual wheels. Electrically actuatable wheel brakes (1, 2, 3, 4, 32, 33) equipped with an electric drive (M) are controlled by the generated signals. Through a second brake system, brake power is transmitted by the brake pedal (5, 5') either simultaneously or upon overcoming a threshold value to the wheels of one axle, preferably to the front wheels, i.e. front right, front left wheels (VR, VL), the brake power becoming, however, effective exclusively in the event of a fault or a failure of the electrical brake system or of the electric power supply.
Inventors
- 👤 Dieter Kircher
- 👤 Hubertus von Gruenberg
- 👤 Klaus D. Blum
- 👤 Peter Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/58; B60T13/74; B60T13/741; B60T13/745; B60T8/00; B60T8/17; B60T8/176; B60T8/1764; B60T8/32; B60T8/321; B60T8/3255; B60T8/326; B60T8/34; B60T8/48; B60T8/4809; F; F16; F16D; F16D65/00; F16D65/14; F16D65/16; F16D65/18; F16D65/38; F16D2065/386; F16D2121/00; F16D2121/02; F16D2121/18; F16D2121/24; F16D2123/00; F16D2125/00; F16D2125/02; F16D2125/06; F16D2125/18; F16D2125/20; F16D2125/34; F16D2125/40; F16D2125/58; F16D2125/60
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
144 words
A method for controlling the distribution of braking power to the wheels of an automotive vehicle upon the actuation of a vehicle brake pedal, said method comprising the steps of: deriving an electrical input signal corresponding to the applied brake pedal force; sensing at least one vehicle wheel to determine its rotational behavior; deriving an electrical input signal indicative of the sensed wheel rotational behavior; processing said input signals to provide an electrical output signal indicative of a predetermined wheel braking effect; transmitting said electrical output signal to the vehicle wheels; electromagnetically applying braking power at each wheel in response to said electrical output signal; generating backup braking power directly in response to said applied brake power force; transmitting mechanically said backup braking power to at least one vehicle wheel; and, selectively applying the transmitted backup braking power to at least one vehicle wheel.
Claim 2
Independent Claim
144 words
A method for controlling the distribution of braking power to the wheels of an automotive vehicle upon the actuation of a vehicle brake pedal, said method comprising the steps of: deriving an electrical input signal corresponding to the applied brake pedal force; sensing at least one vehicle wheel to determine its rotational behavior; deriving an electrical input signal indicative of the sensed wheel rotational behavior; processing said input signals to provide an electrical output signal indicative of a predetermined wheel braking effect; transmitting said electrical output signal to the vehicle wheels; electromagnetically applying braking power at each wheel in response to said electrical output signal; generating backup braking power directly in response to said applied brake power force; transmitting mechanically said backup braking power to at least one vehicle wheel; and, selectively applying the transmitted backup braking power to at least one vehicle wheel.
Claim 3
Dependent Claim
21 words
The method according to claim 1 wherein the second transmitting step includes the step of hydraulically transmitting said backup braking power.
Claim 4
Dependent Claim
29 words
The method according to claim 1 wherein the second deriving step includes the step of deriving an electrical input signal indicative of wheel slip at at least one wheel.
Claim 5
Dependent Claim
160 words
Apparatus for controlling the distribution of braking power to the wheels of an automotive vehicle upon the actuation of a vehicle brake pedal, said apparatus comprising in combination: means for deriving an electrical input signal corresponding to the applied brake pedal force; means for sensing at least one vehicle wheel to determine its rotational behavior; means for deriving an electrical input signal indicative of the sensed wheel rotational behavior; means for processing said input signals to provide an electrical output signal indicative of a predetermined wheel braking effect; means for transmitting said electrical output signal to the vehicle wheels; means for electromagnetically applying braking power at each wheel in response to said electrical output signal; means for generating backup braking power directly in response to said applied brake power force; means for transmitting mechanically said backup braking power to at least one vehicle wheel; and, means for selectively applying the transmitted backup braking power to at least one vehicle wheel.
Claim 6
Dependent Claim
160 words
Apparatus for controlling the distribution of braking power to the wheels of an automotive vehicle upon the actuation of a vehicle brake pedal, said apparatus comprising in combination: means for deriving an electrical input signal corresponding to the applied brake pedal force; means for sensing at least one vehicle wheel to determine its rotational behavior; means for deriving an electrical input signal indicative of the sensed wheel rotational behavior; means for processing said input signals to provide an electrical output signal indicative of a predetermined wheel braking effect; means for transmitting said electrical output signal to the vehicle wheels; means for electromagnetically applying braking power at each wheel in response to said electrical output signal; means for generating backup braking power directly in response to said applied brake power force; means for transmitting mechanically said backup braking power to at least one vehicle wheel; and, means for selectively applying the transmitted backup braking power to at least one vehicle wheel.
Claim 7
Dependent Claim
21 words
The apparatus according to claim 4 wherein the second means for transmitting includes means for hydraulically transmitting said backup braking power.
Claim 8
Dependent Claim
29 words
The apparatus according to claim 4 wherein the second means for deriving includes means for deriving an electrical input signal indicative of wheel slip at at least one wheel.
References Cited (Backward Citations)
US1300094A
Cited
US1882746A
Cited
GB323072A
Cited
US1915877A
Cited
US1990448A
Cited
GB359033A
Cited
US2039509A
Cited
DE851602C
Cited
GB705462A
Cited
US2860737A
Cited
US3169595A
Cited
US3353634A
Cited
DE2128169A1
Cited
DE2208936A1
Cited
DE2541416A1
Cited
US4270806A
Cited
US4357055A
Cited
US4436347A
Cited
GB2129079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |