WO1997006998A1 - Systeme de freinage pour vehicule a moteur - Google Patents

Systeme de freinage pour vehicule a moteur Download PDF

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Publication number
WO1997006998A1
WO1997006998A1 PCT/DE1996/001363 DE9601363W WO9706998A1 WO 1997006998 A1 WO1997006998 A1 WO 1997006998A1 DE 9601363 W DE9601363 W DE 9601363W WO 9706998 A1 WO9706998 A1 WO 9706998A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
actuator
wheel
brake system
hydraulic
Prior art date
Application number
PCT/DE1996/001363
Other languages
German (de)
English (en)
Inventor
Michael DÖRICHT
Karl-Heinz Eglseder
Original Assignee
Siemens Aktiengesellschaft
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
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1997006998A1 publication Critical patent/WO1997006998A1/fr

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
    • 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
    • B60T8/321—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 deceleration
    • 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
    • B60T13/745—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 a hydraulic system, e.g. a master cylinder
    • 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
    • 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
    • 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
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/10—Plural pistons interacting by fluid pressure, e.g. hydraulic force amplifiers using different sized pistons
    • 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

Definitions

  • the invention relates to a brake system according to the preamble of claim 1.
  • the invention has for its object to provide a brake system that for each wheel of the motor vehicle as a finished part can be delivered and assembled, and for which only a small assembly and maintenance effort is required.
  • the advantages of the invention include the fact that after the assembly of a brake actuator supplied as a structural unit, only electrical supply and control lines have to be connected to the respective wheel brake caliper. Because the actuator contains a hydraulic ratio, the power requirements for the torque of the electric drive motor and the size and weight of the mechanical parts of the actuator are low. This also reduces the variety of types and thus simplifies storage.
  • the fact that it has an encapsulated brake fluid expansion tank and that the hydraulic drive is integrated in the actuator means that the brake fluid is largely kept away from environmental influences. This enables a considerable increase in the service life (up to the total service life of the motor vehicle) or at least a significant increase in the maintenance intervals.
  • FIG. 1 a schematic representation of a brake system according to the invention
  • Figure 2 a sectional view of a brake actuator used in the brake system of Figure 1.
  • a brake system 1 (FIG. 1) for motor vehicles with four wheels (which is not shown further here) contains four brakes 2, each of which includes a brake disc 3 and a wheel brake actuator 4 - hereinafter also referred to as actuators.
  • the wheel brake actuators 4 are each integrated in an associated brake caliper 5, that is, combined with it to form a structural unit.
  • the brake calipers 5 are designed as floating calipers. When the actuator 4 is actuated, a braking torque is exerted on the brake disc 3 via brake pads 6. ,
  • Each actuator 4 has power electronics 8, which are supplied by an associated control unit 9 with control signals, for example for the setpoint torque for an actuator motor to be described later, and feedback values to the control unit 9, for example the actual torque of the actuator motor , transmitted.
  • the power electronics 8 also receives feedback values from the actuator 4, for example via the engine speed, the hydraulic pressure of the actuator 4 or the contact pressure of the brakes.
  • the setpoints for each actuator are determined by the control units from measured values which are supplied by various sensors, for example a force sensor 10 and a displacement sensor 12, with which a pedal force simulator 13 is provided, which is actuated by the brake pedal 14 of the Motor vehicle is actuated.
  • the pedal force simulator 13 converts the movement of the brake pedal 14, ie the force exerted by the driver as usual and the pedal travel, into electrical signals which are fed to the control unit 8 and setpoints for the brakes 2, in particular for the deceleration time and for the brake - Represent the torque or braking torque to be applied.
  • the pedal force simulator 13 is equipped with two sensors 10 and 12 each.
  • the brake system 1 has two brake circuits 16 and 17, each with a control unit 9, which are divided between the front axle and the rear axle.
  • a diagonal brake circuit division that is just as good as possible differs from this only by a changed assignment of the wheel brake units to the control units and energy supplies.
  • Each brake circuit 16, 17 has its own control unit 9 and its own energy supply in the form of a battery bat. 1 or Bat. 2.
  • the power supplies and the control units can each be housed in one housing, but must then be functionally separated from one another.
  • Supply lines are shown in thick in Figure 1 and not provided with arrows, control lines are thin drawn in and provided with arrows corresponding to the signal flow direction.
  • the brake system can also be supplemented by a third control unit (not shown here), which monitors the two brake circuit control units as a supervisor.
  • the brake actuator 4 (FIG. 2), which is mounted directly on the brake caliper, is set into a linear axial movement by a commutatorless electric motor 20, which is designed, for example, as an asynchronous machine or electronically commutated direct current motor, by a spindle gear.
  • the rotor of the electric motor forms a spindle nut 22 on which rotor magnets 23 are also attached.
  • Their rotational movement is converted by the spindle gear (which is designed as a planetary roller gear, ball screw drive, trapezoidal screw drive or the like) into the translational movement of a spindle 24, one end of which is designed as a working or hydraulic piston 25.
  • the force of the working piston 25 is multiplied by a hydraulic translation between the working piston and a pressure or wheel brake cylinder piston 26 on the wheel brake cylinder side and presses the pressure piston 26 with the brake linings 6 (see FIG. 1) on the brake disc 3.
  • a refill container 27 is used, which is encapsulated with a bellows 28 and is connected via a trailing bore 29 to a working cylinder 30 in which the working piston 25 moves.
  • a ventilation bore 32 is provided for the pressure equalization of the refill container 27 with the atmosphere.
  • the diameter of the working cylinder 30 is smaller than the diameter of a pressure cylinder 33 in which the wheel brake cylinder piston 26 moves, and the aforementioned hydraulic amplification of the brake actuator 4 results from the ratio of these two cylinders.
  • Control of the motor required power electronics 3 can be accommodated on the actuator 4 itself.
  • the actuator 4 With the aid of the hydraulic transmission, the actuator 4 reduces the performance requirements for the motor torque and also the size and weight of the spindle drive 22, 24, as well as the effort for storage.
  • the encapsulation of the refill container 27 and the integration of the hydraulic unit 26, 26, 30 and 33 in the actuator 4 largely keep the brake fluid away from environmental influences.

Landscapes

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

Abstract

Le système de freinage (1) selon l'invention, destiné à un véhicule à moteur, comporte, sur chaque roue, un dispositif d'actionnement associé au frein de roue (2) correspondant. Ce dispositif d'actionnement se présente sous la forme d'un actionneur électrohydraulique (4) monté sur l'étrier (5) du frein de roue. Il comprend une broche (24) entraînée axialement par un moteur électrique, pourvue, à une extrémité, d'un piston hydraulique (25) dont la pression s'exerce sur un piston (26) de frein de roue, par l'intermédiaire d'un amplificateur hydraulique.
PCT/DE1996/001363 1995-08-11 1996-07-24 Systeme de freinage pour vehicule a moteur WO1997006998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995129664 DE19529664A1 (de) 1995-08-11 1995-08-11 Bremsanlage für ein Kraftfahrzeug
DE19529664.8 1995-08-11

Publications (1)

Publication Number Publication Date
WO1997006998A1 true WO1997006998A1 (fr) 1997-02-27

Family

ID=7769322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/001363 WO1997006998A1 (fr) 1995-08-11 1996-07-24 Systeme de freinage pour vehicule a moteur

Country Status (2)

Country Link
DE (1) DE19529664A1 (fr)
WO (1) WO1997006998A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030054A (en) * 1996-04-17 2000-02-29 Siemens Aktiengesellschaft Brake system for a motor vehicle
US6457783B1 (en) * 2000-07-20 2002-10-01 Robert Bosch Gmbh Wheel brake apparatus and method for operating it

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548392C2 (de) * 1995-12-22 2001-05-17 Siemens Ag Bremsanlage für ein Kraftfahrzeug
DE19741865C1 (de) * 1997-09-23 1998-06-18 Daimler Benz Ag Bremsaktuator
DE19813194C2 (de) * 1998-03-25 2000-03-09 Siemens Ag Verfahren und Schaltungsanordnung zum Regeln des Bremsvorgangs bei einem Kraftfahrzeug
EP1115986B1 (fr) * 1998-09-21 2003-07-16 Siemens Aktiengesellschaft Systeme de freinage electromecanique de vehicule
DE10015263C2 (de) 2000-03-28 2002-05-02 Siemens Ag Elektromechanische Bremsvorrichtung, insbesondere für ein Kraftfahrzeug
DE50210054D1 (de) 2001-02-13 2007-06-14 Siemens Ag Elektromechanische Bremsvorrichtung, insbesondere für Kraftfahrzeuge
DE10118263A1 (de) * 2001-04-12 2002-10-17 Bosch Gmbh Robert Elektronisches Steuersystem, insbesondere für eine Fahrzeugbremsanlage
GB2365086B (en) * 2001-07-17 2002-08-28 Bosch Gmbh Robert Wheel brake device and method for operation thereof
US7150506B2 (en) † 2003-09-29 2006-12-19 Haldex Brake Products Ab Control network for brake system
DE102020204102A1 (de) 2020-03-30 2021-09-30 Continental Teves Ag & Co. Ohg Bremssystem

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208936A1 (de) * 1972-02-25 1973-09-06 Teldix Gmbh Bremssystem fuer ein fahrzeug
DE2843146A1 (de) * 1977-10-03 1979-04-05 Sumitomo Electric Industries Scheibenbremse
EP0025714A1 (fr) * 1979-09-15 1981-03-25 LUCAS INDUSTRIES public limited company Dispositif d'actionnement de frein et système de freinage pour véhicule
EP0325031A1 (fr) * 1988-01-19 1989-07-26 LUCAS INDUSTRIES public limited company Frein
EP0395262A2 (fr) * 1989-04-22 1990-10-31 LUCAS INDUSTRIES public limited company Dispositif d'actionnement de frein
DE4229042A1 (de) * 1991-09-02 1993-03-04 Akebono Brake Ind Bremsbetaetigungs-vorrichtung fuer ein fahrzeug

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029914B (en) * 1978-08-18 1983-05-05 Lucas Industries Ltd Hydraulic anti skid braking systems for vehicles
DE3545800A1 (de) * 1984-12-25 1986-07-10 Nippon Soken, Inc., Nishio, Aichi Steuervorrichtung fuer fahrzeugbremsen
FR2590219B1 (fr) * 1985-11-20 1991-02-01 Bendix France Dispositif de freinage electrique pour vehicule

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208936A1 (de) * 1972-02-25 1973-09-06 Teldix Gmbh Bremssystem fuer ein fahrzeug
DE2843146A1 (de) * 1977-10-03 1979-04-05 Sumitomo Electric Industries Scheibenbremse
EP0025714A1 (fr) * 1979-09-15 1981-03-25 LUCAS INDUSTRIES public limited company Dispositif d'actionnement de frein et système de freinage pour véhicule
EP0325031A1 (fr) * 1988-01-19 1989-07-26 LUCAS INDUSTRIES public limited company Frein
EP0395262A2 (fr) * 1989-04-22 1990-10-31 LUCAS INDUSTRIES public limited company Dispositif d'actionnement de frein
DE4229042A1 (de) * 1991-09-02 1993-03-04 Akebono Brake Ind Bremsbetaetigungs-vorrichtung fuer ein fahrzeug

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030054A (en) * 1996-04-17 2000-02-29 Siemens Aktiengesellschaft Brake system for a motor vehicle
US6457783B1 (en) * 2000-07-20 2002-10-01 Robert Bosch Gmbh Wheel brake apparatus and method for operating it

Also Published As

Publication number Publication date
DE19529664A1 (de) 1997-02-13

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