DE102004043152A1 - Method for evaluation of signal indicating motion and position of brake pedal, using magnet-resistive or sound sensor - Google Patents
Method for evaluation of signal indicating motion and position of brake pedal, using magnet-resistive or sound sensor Download PDFInfo
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- DE102004043152A1 DE102004043152A1 DE102004043152A DE102004043152A DE102004043152A1 DE 102004043152 A1 DE102004043152 A1 DE 102004043152A1 DE 102004043152 A DE102004043152 A DE 102004043152A DE 102004043152 A DE102004043152 A DE 102004043152A DE 102004043152 A1 DE102004043152 A1 DE 102004043152A1
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- sensor element
- analog signal
- magnet
- brake pedal
- differentiated
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- 238000000034 method Methods 0.000 title claims description 19
- 238000011156 evaluation Methods 0.000 title claims description 9
- 230000008859 change Effects 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000004069 differentiation Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/20—Tandem, side-by-side, or other multiple master cylinder units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/38—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including valve means of the relay or driver controlled type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/48—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
- B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
- B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
- B60T8/4863—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems
- B60T8/4872—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems pump-back systems
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Auswertung eines Signals einer Vorrichtung zur Überwachung von Position und Bewegung eines Bremspedals, umfassend einen Hauptzylinder gemäß Hauptpatent Nr. 10 2004 014 808.2 zur Verwendung innerhalb eines geregelten Bremssystems für Kraftfahrzeuge, insbesondere mit Fahrdynamikregelung, mit integriertem Stellungsgeber, wobei der Stellungsgeber einen Magneten als Signalgeber aufweist, welcher ein Magnetfeld in Richtung eines Sensorelementes aussendet.The The invention relates to a method for evaluating a signal of a Device for monitoring of position and movement of a brake pedal comprising a master cylinder according to main patent No. 10 2004 014 808.2 for use within a regulated Brake system for Motor vehicles, in particular with vehicle dynamics control, with integrated Position transmitter, wherein the position transmitter, a magnet as a signal generator which has a magnetic field in the direction of a sensor element sending out.
Es ist allgemein bekannt, Positionen und Bewegungen des Bremspedals durch Messung des zurückgelegten Weges eines Kolbens mittels eines Magneten zu ermitteln. Nachteilig hierbei ist, dass der Weg des Kolbens aufgrund von Toleranzen, welche beispielsweise auf Temperaturschwankungen, Magnetfeldstreuungen oder Verschleiß zurückzuführen sind, nicht exakt bestimmbar ist und somit die Wegmessung nicht zuverlässig ist.It is well known positions and movements of the brake pedal by measuring the distance traveled Way of a piston to determine by means of a magnet. adversely It is here that the way of the piston due to tolerances, which for example due to temperature fluctuations, magnetic field scattering or wear, is not exactly determinable and thus the distance measurement is not reliable.
Weiter führt bei modernen Fahrdynamikregelungssystemen ein Fahrdynamikregelungsvorgang regelmäßig dazu, dass eine normalerweise ständig geöffnete hydraulische Verbindung zwischen Hauptzylinder und Radbremsen automatisch unterbrochen wird, so dass ein oder beide Kolben des Hauptzylinders bei Bremsvorgängen während des Fahrdynamikregelungsvorgangs (ESP-Regeleingriff) infolge geschlossener Trennventile relativ zu dem Gehäuse gewissermaßen unverschiebbar ist. Eine Ursache dafür ist, dass kein Druckmittel in Richtung Radbremsen verdrängt werden kann. Der ESP-Eingriff erfolgt fahrerunabhängig und der rudimentäre Kolbenweg reicht nicht aus, um eine Wegänderung anzuzeigen. Der ESP-Vorgang kann auch nicht durch den Fahrer unterbrochen werden, so dass nur eine eingeschränkte Verzögerung möglich ist. Weiterhin ist kein Betätigungssignal generierbar und es kann beispielsweise keine Bremslichtsignalisierung erfolgen. Der rückwärtige Verkehr wird erst nach Abschluss des Fahrdynamikregelungsvorgangs von dem Bremswunsch des Fahrers in Kenntnis gesetzt.Further leads modern vehicle dynamics control systems a vehicle dynamics control process regularly, that one usually constantly opened Hydraulic connection between master cylinder and wheel brakes automatically is interrupted so that one or both pistons of the master cylinder during braking while the driving dynamics control process (ESP control intervention) due to closed Isolation valves relative to the housing so to speak is immovable. One reason is that no pressure medium displaced towards wheel brakes can be. The ESP intervention is driver-independent and the rudimentary Piston stroke is insufficient to indicate a path change. The ESP process also can not be interrupted by the driver, so only a limited delay possible is. Furthermore, there is no actuation signal can be generated and it can, for example, no brake light signaling respectively. The backward traffic will not be completed by the driver after completion of the vehicle dynamics control process Braking request of the driver informed.
Es gilt daher eine Lösung für die Problematik anzubieten, auch während eines Fahrdynamikregelungsvorganges eine zuverlässige Überwachung eines Kolbens zur ermöglichen und den Fahrerwunsch über den gesamten Betätigungsweg zu erkennen, um Fahrdynamikregelungsvorgänge durch Erkennen des Fahrerwunsches zu optimieren.It Therefore, a solution applies for the To offer problems, even during a vehicle dynamics control process reliable monitoring of a piston for enable and the driver's request the entire actuation path to recognize driving dynamics control operations by detecting the driver's request to optimize.
Zur Lösung dieser Aufgabe wird vorgeschlagen, dass das Sensorelement eine Magnetfeldänderung sensiert und ein analoges Signal ausgibt, dass das analoge Signal des Sensorelementes differenziert wird und in einer elektronischen Steuereinheit ausgewertet wird.to solution This object is proposed that the sensor element a magnetic field change senses and outputs an analog signal that the analog signal of the sensor element is differentiated and in an electronic Control unit is evaluated.
Die Differenzierung des analogen Signals ermöglicht es, die Bremspedalbewegung und den Zustand des Bremspedals (Betätigungs-, Halte- oder Lösungszustand) zu sensieren, d.h. es wird nicht nur sensiert, ob sich das Bremspedal bzw. der damit verbundene Kolben bewegt und wo sich der Kolben relativ zu dem Gehäuse befindet, sondern es kann eine qualitative Aussage über die Bewegung, wie beispielsweise die Geschwindigkeit des Bremspedals, getroffen werden.The Differentiation of the analog signal allows the brake pedal movement and the state of the brake pedal (actuation, holding or release state) to sense, i. it not only senses whether the brake pedal is on or the associated piston moves and where the piston relative to the housing but it can be a qualitative statement about the Movement, such as the speed of the brake pedal, hit become.
Weiter können die Toleranzen durch beispielsweise Temperaturschwankungen, Magnetfeldstreuungen oder Verschleiß vernachlässigt werden, da keine absoluten Werte, sondern das Differenzial betrachtet wird. Auch können aufwendige Kalibriervorgänge wegfallen.Further can the tolerances due to, for example, temperature fluctuations, magnetic field scattering or wear neglected, since no absolute values, but the differential is considered. Also can complex calibration procedures eliminated.
Dadurch dass der Magnet wie im Hauptpatent Nr. 10 2004 014 808.2 beschrieben zwischen zwei Kolben sowie wenigstens zu einem der Kolben relativ verschiebbar angeordnet ist, kann auch bei einem ESP-Regeleingriff der Fahrerwunsch erkannt werden. Dabei können auch minimale Signalschwankungen, d.h. minimale Magnetfeldänderungen erkannt werden.Thereby that the magnet described in the main patent no. 10 2004 014 808.2 between two pistons and at least one of the pistons relative slidably arranged, can also be used in an ESP control intervention the driver's request can be detected. Even minimal signal fluctuations, i.e. minimal magnetic field changes be recognized.
Zusätzlich ist es durch das erfindungsgemäße Verfahren möglich, ein Anschlagen des zweiten Kolbens an dem Gehäuse im Falle eines Fadings (Nachlassen der Bremswirkung durch Undichtigkeiten) zu erkennen. Die Steuereinheit steuert in diesem Fall eine Pumpe an, welche zusätzliches Druckmittelvolumen zuschaltet und dieses in Richtung Radbremsen verdrängt. Diese Sensierung des Kolbenanschlages ermöglicht es, das Hauptzylinder-Volumen kleiner als bei bekannten Hauptzylindern auszulegen, wodurch eine Verkürzung des Pedalweges ohne Komfort- und Funktionseinbußen erzielt wird.In addition is it by the inventive method possible, a striking of the second piston on the housing in the event of fading (slackening the braking effect due to leaks). The control unit controls in this case a pump, which additional pressure medium volume switches on and displaces this towards wheel brakes. These Sensing the piston stop allows the master cylinder volume to be smaller as interpreted in known master cylinders, thereby shortening the Pedalweges without comfort and function losses is achieved.
Das analoge Signal kann in vorteilhafter Weiterbildung mittels eines, eine Spannung ausgebenden Sensorelementes, wie beispielsweise ein Hall-Sensor, oder mittels eines magnetoresistiven Sensorelementes erzeugt werden. Dabei ist entweder die Spannung oder der elektrische Widerstand durch das Magnetfeld charakterisiert.The analogue signal can in an advantageous development by means of a a voltage emitting sensor element, such as a Hall sensor, or be generated by means of a magnetoresistive sensor element. Either the voltage or the electrical resistance is through the magnetic field characterizes.
Vorzugsweise ist in dem Sensorelement eine Auswerteeinheit integriert und das analoge Signal des Sensorelementes wird in dieser differenziert, wodurch die Differenzierung mittels kostengünstiger Hardware-Komponenten, wie beispielsweise ein Mikroprozessor, realisiert werden kann.Preferably, an evaluation unit is integrated in the sensor element and the analog signal of the sensor element is differentiated in this, whereby the differentiation means of inexpensive hardware components, such as a Mi microprocessor, can be realized.
Ohne zusätzliche Hardware kann die Differenzierung des Signals dadurch erfolgen, dass die Auswerteeinheit in der elektronischen Steuereinheit integriert ist und das analoge Signal des Sensorelementes in dieser differenziert wird.Without additional Hardware can be the differentiation of the signal thereby in that the evaluation unit is integrated in the electronic control unit is and the analog signal of the sensor element differentiated in this becomes.
Dies kann beispielsweise durch eine Anpassung der Software der elektronischen Steuereinheit erfolgen.This For example, by adapting the software of the electronic Control unit done.
Weiter ist es denkbar, in dem Sensorelement eine erste Verarbeitung des analogen Signals des Sensorelementes und eine weitere Verarbeitung in der elektronischen Steuereinheit erfolgt zu lassen.Further It is conceivable in the sensor element, a first processing of the analog signal of the sensor element and further processing to be done in the electronic control unit.
Die Anwendung des Verfahrens stellt eine Ablösung der bekannten Bremslichtschalter dar. Die Vorteile der Erfindung sind:
- • Berührungsloses Konzept, d.h. keinerlei Verschleißerscheinungen über Lebensdauer.
- • Sensierung des Betätigungswunsches über gesamten Betätigungsweg.
- • Unterscheidung von Betätigung, Halten und Lösen des Bremspedals.
- • Volumenverkleinerung des THZ möglich.
- • In Verbindung mit bestehenden sowie zukünftigen Bremssystemen kann der Fahrerwunsch erkannt werden, unabhängig vom Systemdruck und der entsprechenden Information anderer Sensoren im Fahrzeug.
- • Regelfälle, z. B. ESP-Eingriffe in den Bremsvorgang, können durch die Fahrerwunscherkennung optimiert werden.
- • Non-contact concept, ie no signs of wear over lifetime.
- • Sensing the desired actuation over the entire actuation path.
- • Distinction between operation, holding and releasing the brake pedal.
- • Volume reduction of the THZ possible.
- • In conjunction with existing and future brake systems, the driver's request can be detected, regardless of the system pressure and the corresponding information of other sensors in the vehicle.
- • rule cases, z. B. ESP intervention in the braking process can be optimized by the driver request detection.
Die Zeichnung zeigt eine Ausführungsform eines Hauptzylinders gemäß dem Hauptpatent Nr. Nr. 10 2004 014 808.2 im Schnitt, bei welchem das erfindungsgemäße Verfahren anwendbar ist.The Drawing shows an embodiment of a Master cylinder according to the main patent No. 10 2004 014 808.2 in section, in which the inventive method is applicable.
Eine
Fahrzeugbremsanlage umfasst neben Radbremsen eine, mittels Rohr-
und Schlauchleitungen daran angebundene Hydraulikeinheit mit stromlos
geöffneten
oder geschlossenen Ventilen (Einlass-, Auslass-, Trenn- sowie Umschaltventile,
wobei letztere einer Änderung
in der Ansaugleitung einer Pumpe zwecks Druckerzeugung in wenigstens
einer Radbremse dienen) sowie eine integrierte Rückförder- oder Druckerhöhungspumpe
und einen pedalbetätigbaren
Hauptzylinder
Der
Hauptzylinder
Jedem
der Kolben
Ausgehend
von dem Kolbenboden
Der
zweite Kolben
Der
Magnet
Die
Federkraft der ersten Rückstellfeder
Die
Bewegung und Ansteuerung des Magneten
Wie
im Hauptpatent Nr. Nr. 10 2004 014 808.2 beschrieben wurde, kann
der Hauptzylinder ebenfalls als Zentralventil-Tandem-Hauptzylinder ausgeführt sein.
Weiter ist es ebenso möglich,
die Bewegung und Ansteuerung des Magneten
Der
Magnet
Wird
der erste Kolben
Diese Spannungsänderung wird nach der Zeit differenziert, wodurch es möglich ist, eine Aussage über die Bremspedalbewegung bzw, den Zustand des Bremspedals (Betätigungs-, Halte- oder Lösungszustand) zu machen.These voltage change is differentiated by time, which makes it possible to make a statement about the Brake pedal movement or, the state of the brake pedal (actuating, Holding or solution state) close.
Das differenzierte Signal wird in der ECU zur Überwachung von Position und Bewegung des Bremspedals ausgewertet, wodurch beispielsweise ein Bremslicht angesteuert werden kann.The differentiated signal is used in the ECU for monitoring position and Evaluated movement of the brake pedal, which, for example, a Brake light can be controlled.
Dabei
ist es möglich,
gemäß den
Bei
einem ESP-Regeleingriff, bei dem beide Kolben
Das heißt, es kann auch im Falle eines ESP-Eingriffes erkannt werden, mit welcher Geschwindigkeit der Fahrer das Bremspedal betätigt. Dadurch kann beispielsweise eine Panikbremsung erkannt werden und durch die ECU können entsprechende Regelungsvorgänge eingesteuert werden.The is called, it can also be detected in the case of an ESP intervention with which Speed of the driver presses the brake pedal. This can, for example a panic braking can be detected and by the ECU can appropriate control operations be controlled.
- 11
- Hauptzylindermaster cylinder
- 22
- Kolbenpiston
- 33
- Kolbenpiston
- 44
- Druckraumpressure chamber
- 55
- Druckraumpressure chamber
- 66
- Gehäusecasing
- 77
- Gehäusewandunghousing
- 88th
- Kolbenwandungpiston wall
- 99
- Kolbenwandungpiston wall
- 1010
- Dichtlippesealing lip
- 1111
- Dichtlippesealing lip
- 1212
- Dichtmanschettesealing sleeve
- 1313
- Dichtmanschettesealing sleeve
- 1414
- RückstellfederReturn spring
- 1515
- RückstellfederReturn spring
- 1616
- EndeThe End
- 1717
- EndeThe End
- 1818
- Kolbenbodenpiston crown
- 1919
- Kolbenbodenpiston crown
- 2020
- Kragencollar
- 2121
- Kragencollar
- 2222
- Hülseshell
- 2323
- Hülseshell
- 2424
- Wandungwall
- 2525
- Wandungwall
- 2626
- Zapfenspigot
- 2727
- Zapfenspigot
- 2828
- EndeThe End
- 2929
- EndeThe End
- 3030
- Anschlagattack
- 3131
- Anschlagattack
- 3232
- Kragencollar
- 3333
- Kragencollar
- 3434
- Kolbenabschnittpiston section
- 3535
- Magnetmagnet
- 3636
- Sensorelementsensor element
- 3737
- Scheibedisc
- 3838
- Scheibedisc
- 3939
- Trägercarrier
- 4040
- BundFederation
- 4141
- Anschlagattack
- 4242
- Magnetfedermagnetic spring
- AA
- Betätigungsrichtungoperating direction
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004043152A DE102004043152A1 (en) | 2003-09-03 | 2004-09-03 | Method for evaluation of signal indicating motion and position of brake pedal, using magnet-resistive or sound sensor |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10341028 | 2003-09-03 | ||
DE10341028.7 | 2003-09-03 | ||
DE102004014808A DE102004014808A1 (en) | 2003-04-07 | 2004-03-24 | Device for monitoring the position and movement of a brake pedal |
DE102004043152A DE102004043152A1 (en) | 2003-09-03 | 2004-09-03 | Method for evaluation of signal indicating motion and position of brake pedal, using magnet-resistive or sound sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004043152A1 true DE102004043152A1 (en) | 2005-07-21 |
Family
ID=34701973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004043152A Withdrawn DE102004043152A1 (en) | 2003-09-03 | 2004-09-03 | Method for evaluation of signal indicating motion and position of brake pedal, using magnet-resistive or sound sensor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004043152A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2944760A1 (en) * | 2009-04-22 | 2010-10-29 | Bosch Gmbh Robert | Electric stroke sensor for use in primary piston of tandem master cylinder of e.g. hydraulic brake booster system in vehicle, has electrical circuit coupled to sleeve and ground to measure capacitance of capacitor formed by electrodes |
ITMO20090232A1 (en) * | 2009-09-17 | 2011-03-18 | Studio Tecnico 6M Srl | CONTROL DEVICE FOR BRAKING VALVES FOR OPERATING OR SIMILAR MACHINES |
ITMO20100276A1 (en) * | 2010-10-04 | 2012-04-05 | Studio Tecnico 6M Srl | CONTROL SYSTEM FOR VEHICLES, MACHINES OR SIMILAR |
CN104245448A (en) * | 2012-02-14 | 2014-12-24 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Main brake cylinder having a device for the contactless monitoring of the position and movement of a linearly movable piston |
US20220074765A1 (en) * | 2019-05-14 | 2022-03-10 | HELLA GmbH & Co. KGaA | Device and method for contactlessly determining a position of a pedal |
DE102020216513A1 (en) | 2020-12-11 | 2022-06-15 | Continental Teves Ag & Co. Ohg | Hydraulic unit with a detection device for piston position detection |
-
2004
- 2004-09-03 DE DE102004043152A patent/DE102004043152A1/en not_active Withdrawn
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2944760A1 (en) * | 2009-04-22 | 2010-10-29 | Bosch Gmbh Robert | Electric stroke sensor for use in primary piston of tandem master cylinder of e.g. hydraulic brake booster system in vehicle, has electrical circuit coupled to sleeve and ground to measure capacitance of capacitor formed by electrodes |
ITMO20090232A1 (en) * | 2009-09-17 | 2011-03-18 | Studio Tecnico 6M Srl | CONTROL DEVICE FOR BRAKING VALVES FOR OPERATING OR SIMILAR MACHINES |
EP2298614A1 (en) | 2009-09-17 | 2011-03-23 | Studio Tecnico 6 M S.R.L. | Control device arrangement on control valve |
US8511641B2 (en) | 2009-09-17 | 2013-08-20 | Studio Tecnico 6M S.R.L. | Control apparatus for braking valves for operating machines or the like |
ITMO20100276A1 (en) * | 2010-10-04 | 2012-04-05 | Studio Tecnico 6M Srl | CONTROL SYSTEM FOR VEHICLES, MACHINES OR SIMILAR |
WO2012046121A1 (en) * | 2010-10-04 | 2012-04-12 | Studio Tecnico 6 M S.R.L. | Control apparatus for vehicles, operating machines or the like |
US9638220B2 (en) | 2010-10-04 | 2017-05-02 | Studio Tecnico 6M S.R.L. | Control apparatus for vehicles, operating machines or the like |
CN104245448A (en) * | 2012-02-14 | 2014-12-24 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Main brake cylinder having a device for the contactless monitoring of the position and movement of a linearly movable piston |
CN104245448B (en) * | 2012-02-14 | 2017-03-08 | 大陆-特韦斯贸易合伙股份公司及两合公司 | There is the position of the piston that can move along a straight line for non-contact type monitoring and the master cylinder of the device of motion |
US20220074765A1 (en) * | 2019-05-14 | 2022-03-10 | HELLA GmbH & Co. KGaA | Device and method for contactlessly determining a position of a pedal |
US12000715B2 (en) * | 2019-05-14 | 2024-06-04 | HELLA GmbH & Co. KGaA | Device and method for contactlessly determining a position of a pedal |
DE102020216513A1 (en) | 2020-12-11 | 2022-06-15 | Continental Teves Ag & Co. Ohg | Hydraulic unit with a detection device for piston position detection |
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