US5535123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for controlling the triggering sensitivity of a vehicle automatic braking process to match driver behavior
Assignee: Mercedes Benz Group AG
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Filing: 1994-11-08
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Granted: 1996-07-09
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Expires: 2014-11-08
Abstract
Abstract A method is disclosed for controlling the triggering sensitivity of an automatic braking process for a motor vehicle based on the driving behavior of an individual driver. A predetermined fixed threshold value of the actuation speed of the brake pedal is multiplied by a driver-dependent factor which is determined after each braking process, as a function of the actuation speed and of the pedal travel of the brake pedal, to generate a driver-dependent threshold for actuation of automatic braking.
Inventors
- 👤 Siegfried Rump
- 👤 Manfred Steiner
- 👤 Brian Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:51
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/12; B60T13/00; B60T13/10; B60T13/66; B60T13/662; B60T2220/00; B60T2220/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
127 words
Method for controlling triggering sensitivity of a vehicle automatic braking system of the type in which automatic braking is commenced when a threshold value for brake pedal actuation speed is exceeded, a brake pressure greater than that which corresponds to the position of the brake pedal being generated automatically after triggering of the automatic braking process, said method comprising the steps of: after each operation of vehicle brakes, determining a driver-dependent factor (F) as a function of a previous value of the driver-dependent factor (F), and pedal actuation speed (vP) and pedal travel (sP) of the vehicle brake pedal in said operation of vehicle brakes; and multiplying said driver-dependent factor (F) by a predetermined fixed value (Sf) to determine a driver-dependent value (Seff) for said threshold value.
Claim 2
Dependent Claim
127 words
Method for controlling triggering sensitivity of a vehicle automatic braking system of the type in which automatic braking is commenced when a threshold value for brake pedal actuation speed is exceeded, a brake pressure greater than that which corresponds to the position of the brake pedal being generated automatically after triggering of the automatic braking process, said method comprising the steps of: after each operation of vehicle brakes, determining a driver-dependent factor (F) as a function of a previous value of the driver-dependent factor (F), and pedal actuation speed (vP) and pedal travel (sP) of the vehicle brake pedal in said operation of vehicle brakes; and multiplying said driver-dependent factor (F) by a predetermined fixed value (Sf) to determine a driver-dependent value (Seff) for said threshold value.
Claim 3
Dependent Claim
53 words
Method according to claim 1 wherein the driver-dependent factor (F) is calculated from the product of a previous value of said driver-dependent factor (F) and a characteristic number (k) which is determined as a function of pedal actuation speed (vP), measured during a last preceding braking process, and of the pedal travel (sP).
Claim 4
Dependent Claim
26 words
Method according to claim 2 wherein a maximum actuation speed (vPm) determined during a last preceding braking process is used to determine the characteristic number (k).
Claim 5
Dependent Claim
30 words
Method according to claim 3 wherein characteristic number (k) is determined as a function of the ratio of the maximum measured actuation speed (vPm) to said driver-dependent threshold value (Seff).
Claim 6
Dependent Claim
26 words
Method according to claim 2 wherein a maximum pedal travel (SPm) determined during the last preceding braking process is used to determined the characteristic number (k).
Claim 7
Dependent Claim
19 words
Method according to claim 2 wherein the characteristic number (k) is read from values stored in a characteristic diagram.
Claim 8
Dependent Claim
22 words
Method according to claim 1 wherein the driver-dependent factor (F) is reset to a value of 1 when the vehicle is started.
Claim 9
Dependent Claim
22 words
Method according to claim 1 wherein a minimum value (Fmin) and a maximum value (Fmax) for the driver-dependent factor (F) are prescribed.
Claim 10
Dependent Claim
27 words
Method according to claim 1 wherein occurrence of a braking process is determined in response to a switched position (Bls) of brake light switch of said vehicle.
Claim 11
Dependent Claim
29 words
Method according to claim 1 wherein occurrence of a braking process is detected by the travel exceeding or dropping below a prescribed travel threshold for the pedal travel (sP).
References Cited (Backward Citations)
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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) | 1999-07-09 | 2000-01-08 | 2000-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-09 | 2004-01-08 | 2004-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-09 | 2008-01-08 | 2008-07-09 | $7700.00 | Window Closed / Lapsed |