WO2005059395A1 - Frein hydraulique pour vehicule - Google Patents

Frein hydraulique pour vehicule Download PDF

Info

Publication number
WO2005059395A1
WO2005059395A1 PCT/EP2004/052693 EP2004052693W WO2005059395A1 WO 2005059395 A1 WO2005059395 A1 WO 2005059395A1 EP 2004052693 W EP2004052693 W EP 2004052693W WO 2005059395 A1 WO2005059395 A1 WO 2005059395A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
hydraulic vehicle
vehicle brake
spindle
threaded nut
Prior art date
Application number
PCT/EP2004/052693
Other languages
German (de)
English (en)
Inventor
Peter Volz
Original Assignee
Continental Teves Ag & Co. Ohg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE102004043309A external-priority patent/DE102004043309A1/de
Application filed by Continental Teves Ag & Co. Ohg filed Critical Continental Teves Ag & Co. Ohg
Publication of WO2005059395A1 publication Critical patent/WO2005059395A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
    • 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
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • B60T7/107—Disposition of hand control with electrical power assistance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D2066/003—Position, angle or speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D2066/005—Force, torque, stress or strain
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/24—Electric or magnetic using motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2123/00—Multiple operation forces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
    • F16D2125/40—Screw-and-nut
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/582—Flexible element, e.g. spring, other than the main force generating element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2127/00—Auxiliary mechanisms
    • F16D2127/02—Release mechanisms
    • F16D2127/04—Release mechanisms for manual operation

Definitions

  • the invention relates to a hydraulic vehicle brake with a parking brake device with a brake housing in which a hydraulic operating pressure space is delimited by a brake piston, the parking brake device acting on the brake piston and being locked in the locked state by means of a threaded nut-spindle arrangement driven by an electric motor.
  • Such a hydraulic vehicle brake is known from DE 197 32 168 Cl.
  • a spindle is driven by an electric motor, after which a threaded nut can mechanically lock the brake piston.
  • the output shaft of the electric motor is arranged parallel to the axis of the brake piston at a lateral distance.
  • a Hall sensor records the revolutions of the electric motor and thus the translation of the threaded nut. It is to be regarded as less advantageous with this arrangement that no information about the set clamping force is available.
  • the invention is therefore based on the object of improving a hydraulic vehicle brake of the type mentioned at the outset in such a way that the application force required for carrying out a parking brake operation is set reliably.
  • This object is achieved in that a sensor is provided for the direct detection of the clamping force.
  • the senor is formed by a force sensor, via which the spindle is supported on the housing of the electric motor.
  • the senor is formed by a displacement sensor which detects the movement of the spindle, which is supported on the brake housing via a spring element.
  • a particularly advantageous embodiment of the subject matter of the invention provides that the threaded nut has a radial collar at its end facing the electric motor, which cooperates with a stop on the brake piston.
  • the threaded nut has an anti-rotation device on its outer circumference, which permits axial movements of the threaded nut relative to the brake piston.
  • a self-locking thread is provided between the threaded nut and the spindle to implement a parking brake operation.
  • a hydraulically loadable working memory interacting with the brake piston is provided with at least one integrated spring element, the spring element being designed such that it does not experience any compression during service braking. It is particularly advantageous if the spring element is designed such that the comparison of the compression path of the spring element with the force required for this has a maximum.
  • an electronic control unit is provided for evaluating the current consumption of the electric motor.
  • a mechanical emergency release is provided for releasing the parking brake. It is particularly advantageous that a sleeve is provided which protrudes into the brake piston and is firmly connected to it and receives the threaded nut-spindle arrangement.
  • FIG. 1 shows a partial illustration of a first embodiment of the hydraulic vehicle brake according to the invention in the released state in the axial cross section
  • FIG. 2 shows a partial representation of a second embodiment of the hydraulic brake according to the invention in the released state.
  • the hydraulic vehicle brake according to the invention which is only partially shown in FIG. 1, has a brake housing 1 which encompasses the outer edge of a brake disk (not shown) and two brake linings (not shown).
  • the brake housing 1 forms on its inside a brake cylinder 2 which receives a brake piston 10 axially displaceably.
  • brake fluid are supplied, so that a brake pressure builds up, which moves the brake piston 10 axially towards the brake disk, not shown.
  • a working memory 11, which is formed by a spring element 12, is provided between the brake piston 10 and a force-transmitting part 13 guided in the brake piston 10.
  • the brake lining facing the force-transmitting part 13 is pressed against the brake disk, the brake housing 1 shifting in response in the opposite direction and thereby also pressing the other brake lining against the brake disk.
  • the spring element 12 just mentioned is designed or preloaded such that it does not experience any compression during the service braking just described and prevents relative movements between the brake piston 10 and the force-transmitting part 13. As a result, the axial movement of the brake piston 10 is transmitted directly to the force-transmitting part 13 and there is no increased volume absorption of brake fluid compared to a conventional vehicle brake, which has no working memory 11.
  • a locking device which is required to implement a parking brake function, is formed in the embodiment shown in Fig.l by a spindle gear or a threaded nut-spindle arrangement, which consists of a threaded nut 15 and a spindle 14 which are connected to one another by means of a self-locking thread There is a connection.
  • the threaded nut 15 has on its side facing away from the brake disc a radial collar 16 which interacts with a stop 17 on the brake piston 10.
  • the threaded nut 15 has an anti-rotation device 18 on its outer circumference, which, however, permits axial movements of the threaded nut 15 relative to the brake piston 10.
  • the threaded nut-spindle arrangement just described 14, 15 is received by a sleeve 3, which protrudes into the brake piston 10 and is caulked or snapped firmly with it.
  • the parking brake is locked after a hydraulic pressure has been built up in the operating pressure chamber 23.
  • the pressure applied to carry out a parking brake operation is so high that the working memory 11 is hydraulically loaded or preloaded.
  • the spring element 12 is compressed and the brake piston 10 moves after the brake lining facing the force-transmitting part 13 against the brake disc moves toward the force-transmitting part 13.
  • the electric motor 4 is then energized in such a way that the spindle 14 is driven such that the threaded nut 15 moves to the left in the drawing.
  • the radial collar 16 already mentioned comes to rest against the stop 17 formed on the brake piston 10.
  • the force-transmitting element 13 is supported on the brake piston 10 via the compressed spring element 12, which in turn is supported by the stop 17, the radial collar 16 and the self-locking thread between the threaded nut 15 and the spindle 14 the spindle 14 supports.
  • the spindle 14 is supported by a force sensor 6 on the housing 7 of the electric motor 4, which detects the set clamping force directly.
  • a displacement sensor 26 is provided instead of the force sensor 6.
  • a hydraulic pressure which is high enough to charge or preload the spring element 11, as already described, is again introduced into the operating pressure chamber 23.
  • the radial collar 16 bears against the stop 17 with the aid of the electric motor 4, the applied pressure is released again.
  • the support takes place in the same way as described with reference to FIG. 1.
  • the spindle 14 is supported on the brake housing 1 via a radial collar 24 and a spring element 27.
  • the spindle 14 moves to the right in the drawing and compresses the spring element 27 in the process. This movement of the spindle 14 to the right in the drawing is a measure of the set clamping force, which is detected with the aid of a displacement sensor 26.
  • the spring element 12 described with reference to FIGS. 1 and 2 can also be designed in the vehicle brake according to the invention in such a way that the assignment of the compression path and the associated force has a maximum.
  • Pressure sensors that monitor the pressure build-up to carry out a parking brake operation can thus be dispensed with.
  • the spindle 14 is always pushed to the right in the drawing by the hydraulic input, since the hydraulic pressure acts on the cross-sectional area of the spindle 14. Since the spindle 14 is supported by the force sensor 6 or the displacement sensor 26, the pressure introduced in the operating pressure chamber 23 can be determined by the sensors just mentioned.
  • the vehicle brake according to the invention also has an electronic control unit, not shown, which evaluates the current consumption of the electric motor 4.
  • an electronic control unit not shown, which evaluates the current consumption of the electric motor 4.
  • an emergency release is provided to release the parking brake in an emergency.
  • the emergency release means is preferably designed as an emergency release screw, which is in direct connection with the spindle 14 in order to actuate it manually in the event of a defect in the electric motor 4 or in the event of a failure of the electrical energy supply, as a result of which the threaded nut 15 and thus the radial collar 16 1 and 2 is moved to the right. This releases the parking brake manually.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un frein hydraulique pour véhicule, comprenant un dispositif de frein de stationnement muni d'un boîtier de frein, dans lequel une chambre de pression d'exploitation est délimitée par un piston de frein. Le dispositif de frein de stationnement agit sur le piston de frein et peut être bloqué, à l'état serré, à l'aide d'un système broche-écrou fileté entraîné par un moteur électrique. Selon l'invention, il est prévu un capteur pour détecter directement la force de serrage, qui se présente soit sous forme de capteur de force, par l'intermédiaire duquel la broche s'appuie sur un boîtier, soit sous forme de capteur de déplacement qui détecte le mouvement de la broche.
PCT/EP2004/052693 2003-12-17 2004-10-28 Frein hydraulique pour vehicule WO2005059395A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10359474 2003-12-17
DE10359474.4 2003-12-17
DE102004043309A DE102004043309A1 (de) 2003-12-17 2004-09-08 Hydraulische Fahrzeugbremse
DE102004043309.7 2004-09-08

Publications (1)

Publication Number Publication Date
WO2005059395A1 true WO2005059395A1 (fr) 2005-06-30

Family

ID=34701995

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/052693 WO2005059395A1 (fr) 2003-12-17 2004-10-28 Frein hydraulique pour vehicule

Country Status (1)

Country Link
WO (1) WO2005059395A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010033273A1 (de) * 2010-08-03 2012-02-09 Lucas Automotive Gmbh Fahrzeugbremssystem für ein Kraftfahrzeug und Verfahren zum Ansteuern des Fahrzeugbremssystems beim Lösen der Feststellbremsfunktion
WO2016034314A1 (fr) * 2014-09-01 2016-03-10 Robert Bosch Gmbh Dispositif de freinage pour véhicule automobile et procédé de commande du dispositif de freinage
EP3578429A1 (fr) * 2018-06-06 2019-12-11 Sensata Technologies, Inc. Connecteur pour frein électromécanique
DE102004060906B4 (de) 2004-12-17 2024-02-22 Robert Bosch Gmbh Verriegelungsvorrichtung zur Verriegelung einer automatisierten Parkbremse in Fahrzeugen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995483A (en) * 1989-12-18 1991-02-26 Aircraft Braking Systems Corporation Motor position feedback controlled electrically actuated aircraft brake
US5000521A (en) * 1984-12-25 1991-03-19 Nippondenso Co., Ltd. Vehicle braking control apparatus
US6000507A (en) * 1995-09-30 1999-12-14 Itt Manufacturing Enterprises Inc. Control or adjustment system for a wheel brake operated by an electric motor
US6394235B1 (en) * 1997-07-25 2002-05-28 Lucas Industries Plc Hydraulic vehicle brake with blocking means and method for operating same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5000521A (en) * 1984-12-25 1991-03-19 Nippondenso Co., Ltd. Vehicle braking control apparatus
US4995483A (en) * 1989-12-18 1991-02-26 Aircraft Braking Systems Corporation Motor position feedback controlled electrically actuated aircraft brake
US6000507A (en) * 1995-09-30 1999-12-14 Itt Manufacturing Enterprises Inc. Control or adjustment system for a wheel brake operated by an electric motor
US6394235B1 (en) * 1997-07-25 2002-05-28 Lucas Industries Plc Hydraulic vehicle brake with blocking means and method for operating same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004060906B4 (de) 2004-12-17 2024-02-22 Robert Bosch Gmbh Verriegelungsvorrichtung zur Verriegelung einer automatisierten Parkbremse in Fahrzeugen
DE102010033273A1 (de) * 2010-08-03 2012-02-09 Lucas Automotive Gmbh Fahrzeugbremssystem für ein Kraftfahrzeug und Verfahren zum Ansteuern des Fahrzeugbremssystems beim Lösen der Feststellbremsfunktion
US9340192B2 (en) 2010-08-03 2016-05-17 Lucas Automotive Gmbh Vehicle brake system for a motor vehicle and method for actuating the vehicle brake system during release of the parking brake function
WO2016034314A1 (fr) * 2014-09-01 2016-03-10 Robert Bosch Gmbh Dispositif de freinage pour véhicule automobile et procédé de commande du dispositif de freinage
US10697510B2 (en) 2014-09-01 2020-06-30 Robert Bosch Gmbh Braking device for a motor vehicle, and method for controlling the braking device
EP3578429A1 (fr) * 2018-06-06 2019-12-11 Sensata Technologies, Inc. Connecteur pour frein électromécanique
US10744981B2 (en) 2018-06-06 2020-08-18 Sensata Technologies, Inc. Electromechanical braking connector

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