DE3801118A1 - Electro-hydraulic device for continuous monitoring of the pressure in a motor vehicle hydraulic brake system - Google Patents
Electro-hydraulic device for continuous monitoring of the pressure in a motor vehicle hydraulic brake systemInfo
- Publication number
- DE3801118A1 DE3801118A1 DE19883801118 DE3801118A DE3801118A1 DE 3801118 A1 DE3801118 A1 DE 3801118A1 DE 19883801118 DE19883801118 DE 19883801118 DE 3801118 A DE3801118 A DE 3801118A DE 3801118 A1 DE3801118 A1 DE 3801118A1
- Authority
- DE
- Germany
- Prior art keywords
- electro
- hydraulic device
- membrane
- housing
- transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- 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
- B60T8/36—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 a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator 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
- B60T8/88—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/92—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action
- B60T8/94—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action on a fluid pressure regulator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/007—Transmitting or indicating the displacement of flexible diaphragms using variations in inductance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
- G01L9/0077—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/16—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in the magnetic properties of material resulting from the application of stress
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine elektrohydraulische Vorrichtung zur kontinuierlichen Überwachung des Druckes in einer hydraulischen Kraftfahrzeugbremsanlage, insbe sondere zur Ausgabe elektrischer Steuersignale in Ab hängigkeit von zugeführten Drucksignalen, bestehend aus einem zwei koaxiale Bohrungen aufweisenden Gehäuse, einer im Gehäuse angeordneten, als Aufnehmer dienenden, mit dem Eingangsdruck beaufschlagbaren Membran aus amorphem Metall sowie einem Wandler für die Umwandlung des hydraulischen Druckes in ein elektrisches, einer Auswerteelektronik zu führbares Ausgangssignal (nach Patentanmeldung P 36 38 978.1...).The invention relates to an electro-hydraulic Device for continuously monitoring the pressure in a hydraulic motor vehicle brake system, esp especially for the output of electrical control signals in Ab dependence of supplied pressure signals, consisting of a housing with two coaxial bores, one arranged in the housing, serving as a sensor, with the Membrane made of amorphous metal which can be acted upon by the inlet pressure as well as a converter for converting the hydraulic Pressure in an electrical, an evaluation electronics too feasible output signal (according to patent application P 36 38 978.1 ...).
Eine derartige elektrohydraulische Vorrichtung ist aus der gattungsbildenden älteren Patentanmeldung der Anmelderin bekannt. Das Besondere an der bekannten Vorrichtung besteht darin, daß die als Aufnehmer verwendete amorphe Membran permeabilitätsändernd mit einem als Wandler eingesetzten Spulensystem zusammenwirkt, das in einem im Gehäuse ausgebildeten Ringraum angeordnet ist und dessen Ausgangssignale einer ebenso im Gehäuse vorgesehenen Auswerteelektronik zuführbar sind. Such an electro-hydraulic device is from the generic older patent application of the applicant known. What is special about the known device is that the amorphous used as a transducer Membrane permeability changing with a as a converter used coil system interacts, which in one in Housing trained annulus is arranged and its Output signals of an also provided in the housing Evaluation electronics can be supplied.
Als nachteilig anzusehen ist bei der bekannten Vorrichtung das separate Spulensystem, das in das Gehäuse eingelegt und darin vergossen wird, da sowohl dessen Fertigung als auch die oben erwähnten Montageschritte mit erheblichen Kosten verbunden sind.To be regarded as disadvantageous in the known device the separate coil system that is inserted into the housing and is shed in it, since both its manufacture and also the assembly steps mentioned above with considerable Costs are associated.
Als weniger vorteilhaft empfunden werden auch die kompli zierte Natur der zwischen der amorphen Membran und dem sie umgebenden Spulensystem auftretenden Wechselwirkung bzw. die indirekte Beeinflussung der magnetischen Feldlinien durch die Membran, deren Optimierung kosten- und zeit intensiv ist.The compli are also perceived as less advantageous graced nature of the between the amorphous membrane and which it interaction occurring around the coil system or the indirect influence of the magnetic field lines through the membrane, optimizing it costly and time is intense.
Der Erfindung liegt daher die Aufgabe zugrunde, diesen Nachteil zu überwinden und eine Vorrichtung zur Über wachung des Druckes in einer hydraulischen Bremsanlage zu entwickeln, die sich vor allem durch einfachen Aufbau, hohe Lebensdauer, hohe Zuverlässigkeit und durch geringen Herstellungsaufwand auszeichnet. Ferner ist eine aus reichende Ansprechempfindlichkeit und eine präzise Reaktionsfähigkeit auf Druckänderungen gefordert.The invention is therefore based on the object Overcoming disadvantage and a device for over monitoring of the pressure in a hydraulic brake system develop that mainly through simple structure, long life, high reliability and low Manufacturing expenses distinguished. Furthermore, one is off sufficient responsiveness and a precise Responsiveness to pressure changes required.
Es hat sich nun herausgestellt, daß sich diese Aufgabe in einfacher, technisch fortschrittlicher Weise durch Weiterbildung einer Vorrichtung der eingangs genannten Art lösen läßt, die darin besteht, daß der Wandler unmittelbar gegenüber der amorphen Membran angeordnet ist.It has now been found that this task is reflected in simple, technically advanced way Development of a device of the type mentioned can solve, which is that the converter immediately is arranged opposite the amorphous membrane.
Eine vorteilhafte Ausgestaltung des Erfindungsgegenstandes sieht vor, daß zwischen der amorphen Membran und dem Wandler ein Luftspalt vorgesehen ist, der der maximalen Auslenkung der Membran entspricht. Diese Maßnahme bringt eine erhebliche Erweiterung des Meßbereichbereiches und dient gleichzeitig als Überlastschutz.An advantageous embodiment of the subject matter of the invention provides that between the amorphous membrane and the An air gap of the maximum converter is provided Deflection of the membrane corresponds. This measure brings a considerable expansion of the measuring range and also serves as overload protection.
Eine besonders wirksame Weiterbildung des erfindungsge mäßen Gegenstandes sieht vor, daß die Membran an einer Stirnfläche einer die erste Bohrung von der zweiten Bohrung trennenden Trennwand anliegend mittels einer Stiftschraube im Randbereich eingespannt ist, wobei in der Trennwand eine den Wandler aufnehmende zylindrische Kammer ausgebildet ist. Dadurch wird eine wirksame Abdichtung der zylindrischen Kammer gegenüber dem Eingangsdruck des auf die Membran wirkenden Druckmittels erreicht.A particularly effective development of the fiction moderate object provides that the membrane on a Face of the first hole from the second Partition separating the bore by means of a Stud screw is clamped in the edge area, being in the Partition a cylindrical chamber receiving the transducer is trained. This will effectively seal the cylindrical chamber against the inlet pressure of the reached the diaphragm acting pressure medium.
Eine besonders raumsparende Anordnung der erfindungs gemäßen Vorrichtung wird dadurch erreicht, daß der Wandler durch einen Elementarsensor, vorzugsweise ein mit einem Permanentmagneten zusammenwirkendes Hallelement, eine Feldplatte oder ein magnetoresistives Element gebildet wird.A particularly space-saving arrangement of the Invention according device is achieved in that the converter by an elementary sensor, preferably one with a Hall element interacting permanent magnet, a Field plate or a magnetoresistive element is formed becomes.
Nach einer bevorzugten Weiterbildung des Erfindungsgegen standes wird vorgesehen, daß der Wandler durch eine Reflexionslichtschranke gebildet ist. Diese Maßnahme ermöglicht es, auf den Permanentmagneten zu verzichten und eine höhere Auflösung im Bereich der niedrigen Drucke zu erreichen. According to a preferred development of the counterpart of the invention It is envisaged that the converter by a Reflection light barrier is formed. This measure makes it possible to dispense with the permanent magnet and a higher resolution in the area of low pressures too to reach.
Weitere Einzelheiten und Vorteile der erfindungsgemäßen Vorrichtung ergeben sich aus den Unteransprüchen sowie aus der Beschreibung von zwei Ausführungsbeispielen der Erfin dung, die nachfolgend anhand der beiliegenden Zeichnung näher erläutert sind, wobei einander entsprechende Teile mit den gleichen Bezugszeichen versehen sind.Further details and advantages of the invention Device result from the subclaims and from the description of two embodiments of the invention the following using the attached drawing are explained in more detail, corresponding parts are provided with the same reference numerals.
Es zeigen in schematisch vereinfachter Darstellung im Längsschnitt:They show a schematically simplified representation in the Longitudinal section:
Fig. 1 eine erste Ausführungsform der erfindungs gemäßen Vorrichtung und, Fig. 1 shows a first embodiment of the device according to the Invention and,
Fig. 2 eine zweite Ausführungsform der erfindungs gemäßen Vorrichtung. Fig. 2 shows a second embodiment of the device according to the Invention.
In der Zeichnung ist mit 1 ein Gehäuse der erfindungsge mäßen elektrohydraulichen Vorrichtung 10 bezeichnet, das in einer Bohrung 11 eines Ventilblocks 17 einer nicht dar gestellten hydraulischen Bremsanlage eingeschraubt ist. Die Verschraubung mit dem Ventilblock 17 wird durch ein Außengewinde 12 ermöglicht, das am Gehäuse 1 angeformt ist. Das Gehäuse 1 verfügt über zwei koaxiale Bohrungen 3 und 4, die voneinander durch eine senkrecht zur Längsachse des Gehäuses 1 verlaufende Trennwand 13 getrennt sind, wobei die Bohrung 4 einen größeren Durchmesser aufweist. Um eine Leckage des hydraulischen Druckmittels, bedingt durch das zwischen dem Außengewinde 12 und dem Innenge winde der Wandung der Bohrung 11 vorhandene Spiel, zu vermeiden, ist ein Dichtring 21 vorgesehen, der zwischen der Oberfläche des Ventilblocks 17 und dem Gehäuse 1 eingeklemmt ist. In the drawing, 1 denotes a housing of the electrohydraulic device 10 according to the invention, which is screwed into a bore 11 of a valve block 17 of a hydraulic brake system, not shown. The screw connection to the valve block 17 is made possible by an external thread 12 which is integrally formed on the housing 1 . The housing 1 has two coaxial bores 3 and 4 , which are separated from one another by a dividing wall 13 running perpendicular to the longitudinal axis of the housing 1 , the bore 4 having a larger diameter. In order to avoid leakage of the hydraulic pressure medium due to the existing between the external thread 12 and the Innenge thread of the wall of the bore 11 , a sealing ring 21 is provided, which is clamped between the surface of the valve block 17 and the housing 1 .
In der durch die Trennwand 13 begrenzten Bohrung 3 ist senkrecht zu deren Längsachse eine Membran 2 aus amorphem Metall angeordnet, die an der Trennwand 13 dichtend an liegt und in ihrem Randbereich dagegen mittels einer in der Bohrung 3 eingeschraubten Stiftschraube 8 mit Innen sechskant gedrückt wird. Um die Membran 2 mit dem in der Bremsanlage herrschenden hydraulischen Druck beaufschlagen zu können, ist die Stiftschraube 8 mit einem axialen Durchgang 9 versehen, wobei die Trennwand 13 eine axiale zylindrische Kammer 5 aufweist, die ein Ausbeulen der Membran 2 unter der Einwirkung des hydraulischen Druckes ermöglicht und einen als Wandler eingesetzten, mit einem Permanentmagneten 7 zusammenwirkenden Elementarsensor 6 aufnimmt, der vorzugsweise durch ein Hallelement 61, eine Feldplatte oder ein magnetoresistives Element 62 gebildet wird.In the bore 3 delimited by the partition 13 , a membrane 2 made of amorphous metal is arranged perpendicular to the longitudinal axis thereof, which lies sealingly on the partition 13 and, in contrast, is pressed in its edge region by means of a stud screw 8 screwed into the bore 3 with an internal hexagon. In order to use the membrane 2 is acted upon by the pressure prevailing in the brake hydraulic pressure, the stud is provided with an axial passage 9 8, wherein the partition wall 13 having an axial cylindrical chamber 5, the bulging of the membrane 2 under the action of the hydraulic pressure enables and accommodates an elementary sensor 6 used as a transducer and cooperating with a permanent magnet 7 , which is preferably formed by a Hall element 61 , a field plate or a magnetoresistive element 62 .
Die Anordnung der Membran 2 ist vorzugsweise derart ge troffen, daß die die Membran 2 enthaltende Ebene senkrecht zur Längsachse des Gehäuses 1 verläuft. Im Rahmen einer optimalen Ausnutzung sämtlicher im Gehäuse 1 vorhandenen Räume nimmt der Innenraum 18 der zweiten Bohrung 4 eine Auswerteelektronik 14 auf, die alle zur Auswertung des Ausgangssignals des Elementarsensors 6 benötigten Elemente enthält. Die elektrische Verbindung zwischen Elementarsen sor 6 und Auswerteelektronik 14 wird durch eine druckfeste Kabeldurchführung 22, insbesondere Glasdurchführung in der Trennwand 13 sichergestellt. Die Auswerteelektronik 14 steht ihrerseits mit z.B. zwei nur schematisch dar gestellten Kontaktstiften 16, 20 in Verbindung, die zur Weiterverarbeitung der elektrischen Signale dienen. Die Kontaktstifte 16, 20, die z.B. als Kontaktmesser für einen Gegenstecker ausgebildet sein können, gehen dabei durch eine Kontaktstiftplatte 15 hindurch, die das Gehäuse 1 verschließt und mittels einer Bördelung 19 an dessen Ende gehalten wird.The arrangement of the membrane 2 is preferably such that the plane containing the membrane 2 is perpendicular to the longitudinal axis of the housing 1 . In the context of an optimal utilization of all the spaces present in the housing 1 , the interior 18 of the second bore 4 accommodates evaluation electronics 14 which contain all the elements required for evaluating the output signal of the elementary sensor 6 . The electrical connection between elementary sensors 6 and evaluation electronics 14 is ensured by a pressure-resistant cable bushing 22 , in particular a glass bushing in the partition 13 . The evaluation electronics 14 is in turn connected to, for example, two contact pins 16 , 20 , which are only shown schematically and are used for further processing of the electrical signals. The contact pins 16 , 20 , which can be designed, for example, as a contact knife for a mating connector, pass through a contact pin plate 15 which closes the housing 1 and is held at its end by means of a flange 19 .
Die Wirkungsweise der oben beschriebenen elektro hydraulischen Vorrichtung nach der Erfindung ist folgende:The operation of the electro described above hydraulic device according to the invention is as follows:
In der Ruhestellung der Vorrichtung (druckloser Zustand der hydraulischen Bremsanlage) befindet sich die aus einem geeigneten amorphen Metall hergestellte Membran 2 in der aus Fig. 1 und 2 ersichtlichen Stellung. Bei einer Er höhung des in der Bremsanlage herrschenden hydraulischen Druckes wird die Membran 2 unter der Einwirkung des Druck mittels in Richtung auf die zylindrische Kammer 5 zu aus gebeult. Infolgedessen tritt eine Änderung der Feldlinien des Magnetfeldes des Permanentmagneten 7 auf, die eine Änderung der Ausgangsspannung des Hallelementes 61 bzw. des Ausgangswiderstandes des magnetoresistiven Elementes 62 bewirkt, die in der Auswerteelektronik 14 in eine analoge, druckabhängige kontinuierliche Ausgangsin formation umgewandelt werden, die in einem einen Bestand teil der erwähnten hydraulischen Bremsanlage bildenden elektronischen Regler einer Weiterverarbeitung unterzogen wird. Läßt der auf die Membran 2 einwirkende Druck nach, so kehrt diese in Folge ihrer Eigenelastizität in ihre Ausgangsstellung zurück.In the rest position of the device (depressurized state of the hydraulic brake system), the membrane 2 made of a suitable amorphous metal is in the position shown in FIGS. 1 and 2. At an increase in the prevailing hydraulic pressure in the brake system, the diaphragm 2 is bulged under the influence of the pressure in the direction of the cylindrical chamber 5 . As a result, there occurs a change in the field lines of the magnetic field of the permanent magnet 7 , which causes a change in the output voltage of the Hall element 61 or the output resistance of the magnetoresistive element 62 , which are converted in the evaluation electronics 14 into an analog, pressure-dependent continuous output information, which are converted into a a component of the aforementioned hydraulic brake system forming electronic controller is subjected to further processing. If the pressure acting on the membrane 2 decreases, it returns to its starting position as a result of its inherent elasticity.
Bei dem in Fig. 2 gezeigten Ausführungsbeispiel wird als Elementarsensor eine Reflexionslichtschranke 63 einge setzt, deren in der Zeichnung lediglich schematisch links angedeuteter Sender eine Infrarotstrahlung aus strahlt, die, von der Oberfläche der amorphen Membran reflektiert und von einem rechts angedeuteten Empfänger erfaßt wird. Die durch den hydraulischen Eingangsdruck verursachte Durchbiegung der amorphen Membran 2 bewirkt eine Änderung des Reflexionswinkels α zwischen dem ausge strahlten und dem reflektierten Lichtstrahl, die von der Auswerteelektronik 14 in ein elektrisches, der Druck änderung entsprechendes Ausgangssignal umgewandelt wird.In the embodiment shown in FIG. 2, a reflection light barrier 63 is used as an elementary sensor, whose transmitter, which is only schematically indicated on the left in the drawing, emits infrared radiation which is reflected by the surface of the amorphous membrane and is detected by a receiver indicated on the right. The deflection of the amorphous membrane 2 caused by the hydraulic input pressure causes a change in the reflection angle α between the emitted and the reflected light beam, which is converted by the evaluation electronics 14 into an electrical output signal corresponding to the change in pressure.
Es ist auch denkbar, anstatt der Elementarsensoren und der getrennten Auswerteelektronik elektronische bzw. optoelek tronische Bauteile mit integrierter Signalverarbeitung zu verwenden, die es ermöglichen, die erwähnten Funktionen zusammenzufassen. It is also conceivable instead of the elementary sensors and the separate evaluation electronics electronic or optoelec electronic components with integrated signal processing use that enable the functions mentioned summarize.
Bezugszeichenliste:Reference symbol list:
1 Gehäuse
2 Membran
3 erste Bohrung
4 zweite Bohrung
5 Kammer
6 Elementarsensor
7 Permanentmagnet
8 Stiftschraube
9 Durchgang
10 Vorrichtung
11 Bohrung
12 Außengewinde
13 Trennwand
14 Auswerteelektronik
15 Kontaktstiftplatte
16 Kontaktstift
17 Ventilblock
18 Innenraum
19 Bördelung
20 Kontaktstift
21 Dichtring
22 Kabeldurchführung
61 Hallelement
62 magnetoresistives Element
63 Reflexionslichtschranke 1 housing
2 membrane
3 first hole
4 second hole
5 chamber
6 elementary sensor
7 permanent magnet
8 stud screw
9 round
10 device
11 hole
12 external threads
13 partition
14 evaluation electronics
15 contact pin plate
16 contact pin
17 valve block
18 interior
19 flaring
20 contact pin
21 sealing ring
22 Cable entry
61 Hall element
62 magnetoresistive element
63 Retro-reflective sensor
Claims (16)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863638978 DE3638978C2 (en) | 1986-11-14 | 1986-11-14 | Electro-hydraulic device for the continuous monitoring of the pressure in a hydraulic motor vehicle brake system |
DE19883801118 DE3801118A1 (en) | 1986-11-14 | 1988-01-16 | Electro-hydraulic device for continuous monitoring of the pressure in a motor vehicle hydraulic brake system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863638978 DE3638978C2 (en) | 1986-11-14 | 1986-11-14 | Electro-hydraulic device for the continuous monitoring of the pressure in a hydraulic motor vehicle brake system |
DE19883801118 DE3801118A1 (en) | 1986-11-14 | 1988-01-16 | Electro-hydraulic device for continuous monitoring of the pressure in a motor vehicle hydraulic brake system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3801118A1 true DE3801118A1 (en) | 1989-07-27 |
Family
ID=25849389
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863638978 Expired - Fee Related DE3638978C2 (en) | 1986-11-14 | 1986-11-14 | Electro-hydraulic device for the continuous monitoring of the pressure in a hydraulic motor vehicle brake system |
DE19883801118 Ceased DE3801118A1 (en) | 1986-11-14 | 1988-01-16 | Electro-hydraulic device for continuous monitoring of the pressure in a motor vehicle hydraulic brake system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863638978 Expired - Fee Related DE3638978C2 (en) | 1986-11-14 | 1986-11-14 | Electro-hydraulic device for the continuous monitoring of the pressure in a hydraulic motor vehicle brake system |
Country Status (1)
Country | Link |
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DE (2) | DE3638978C2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4026855A1 (en) * | 1990-08-24 | 1992-03-05 | Siemens Ag | PRESSURE SENSOR |
DE4137915A1 (en) * | 1991-11-18 | 1993-05-19 | Teves Gmbh Alfred | HYDRAULIC VIBRATION DAMPER |
DE10323297A1 (en) * | 2002-05-24 | 2003-12-04 | Continental Teves Ag & Co Ohg | Measurement of hydraulic pressure in electronically-controlled vehicle braking system, detects de-tuning of oscillatory circuit by membrane movement |
EP2113759A1 (en) * | 2008-04-29 | 2009-11-04 | The Swatch Group Research and Development Ltd. | Pressure sensor having a membrane comprising an amorphous material |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29621744U1 (en) * | 1996-12-14 | 1997-04-03 | Hsiao, Ping-hui, Chiali Chen, Tainan | Control device for the braking system of a vehicle |
DE19861041C2 (en) * | 1998-03-20 | 2001-10-04 | Robert Seuffer Gmbh & Co | Pressure sensor for a liquid pressure medium |
DE102006018480A1 (en) * | 2005-04-27 | 2006-11-02 | Continental Teves Ag & Co. Ohg | Magnetomechanical pressure sensor for measuring brake pressures in motor vehicles has first part, which comprises yoke, coil body and coil and is arranged in or on electronic unit |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2059071A (en) * | 1979-09-21 | 1981-04-15 | Bosch Gmbh Robert | Capacitive pressure transducer |
DE3132848A1 (en) * | 1981-08-20 | 1983-03-03 | Robert Bosch Gmbh, 7000 Stuttgart | Electromechanical transducer for measuring pressures |
US4412454A (en) * | 1980-07-17 | 1983-11-01 | Matsushita Electric Industrial Co., Ltd. | Pressure sensing unit for a pressure sensor |
DE3235175A1 (en) * | 1982-09-23 | 1984-03-29 | Robert Bosch Gmbh, 7000 Stuttgart | Pressure transducer |
DE3534544A1 (en) * | 1984-09-29 | 1986-04-03 | Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa | PRESSURE MEASURING DEVICE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2809264A1 (en) * | 1978-03-03 | 1979-09-13 | Siemens Ag | Pressure pick=up using tubular ring - separated from diaphragm by elastic plastics, and with electrical connections to recorder |
US4336567A (en) * | 1980-06-30 | 1982-06-22 | The Bendix Corporation | Differential pressure transducer |
DE3313261A1 (en) * | 1983-04-13 | 1984-10-25 | Ermeto Armaturen Gmbh, 4800 Bielefeld | SENSOR |
US4523474A (en) * | 1983-08-12 | 1985-06-18 | Borg-Warner Corporation | Capacitive pressure sensor |
-
1986
- 1986-11-14 DE DE19863638978 patent/DE3638978C2/en not_active Expired - Fee Related
-
1988
- 1988-01-16 DE DE19883801118 patent/DE3801118A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2059071A (en) * | 1979-09-21 | 1981-04-15 | Bosch Gmbh Robert | Capacitive pressure transducer |
US4412454A (en) * | 1980-07-17 | 1983-11-01 | Matsushita Electric Industrial Co., Ltd. | Pressure sensing unit for a pressure sensor |
DE3132848A1 (en) * | 1981-08-20 | 1983-03-03 | Robert Bosch Gmbh, 7000 Stuttgart | Electromechanical transducer for measuring pressures |
DE3235175A1 (en) * | 1982-09-23 | 1984-03-29 | Robert Bosch Gmbh, 7000 Stuttgart | Pressure transducer |
DE3534544A1 (en) * | 1984-09-29 | 1986-04-03 | Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa | PRESSURE MEASURING DEVICE |
Non-Patent Citations (2)
Title |
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DE-Z: atp, 28.Jg., H.6, 1986, S.269-273 * |
DE-Z: messen, prüfen, automatisieren, Juni 1986, S.340-351 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4026855A1 (en) * | 1990-08-24 | 1992-03-05 | Siemens Ag | PRESSURE SENSOR |
DE4137915A1 (en) * | 1991-11-18 | 1993-05-19 | Teves Gmbh Alfred | HYDRAULIC VIBRATION DAMPER |
DE10323297A1 (en) * | 2002-05-24 | 2003-12-04 | Continental Teves Ag & Co Ohg | Measurement of hydraulic pressure in electronically-controlled vehicle braking system, detects de-tuning of oscillatory circuit by membrane movement |
EP2113759A1 (en) * | 2008-04-29 | 2009-11-04 | The Swatch Group Research and Development Ltd. | Pressure sensor having a membrane comprising an amorphous material |
Also Published As
Publication number | Publication date |
---|---|
DE3638978A1 (en) | 1988-05-26 |
DE3638978C2 (en) | 1996-04-25 |
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