WO2003067113A1 - Disk brake for a vehicle braking system - Google Patents
Disk brake for a vehicle braking system Download PDFInfo
- Publication number
- WO2003067113A1 WO2003067113A1 PCT/EP2003/001199 EP0301199W WO03067113A1 WO 2003067113 A1 WO2003067113 A1 WO 2003067113A1 EP 0301199 W EP0301199 W EP 0301199W WO 03067113 A1 WO03067113 A1 WO 03067113A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brake
- piston
- partial
- disc
- partial piston
- Prior art date
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
-
- 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
- F16D2121/14—Mechanical
-
- 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
Definitions
- the invention relates to a disc brake for a vehicle brake system with at least one brake caliper for gripping over a brake disc connected in a rotationally fixed manner to a vehicle wheel, the brake caliper having a housing with at least one bore for receiving a piston arrangement, which can be adjusted parallel to the brake disc axis by means of an actuator in order to Tension the brake calipers on both sides of the brake disc against the brake disc.
- a disc brake of the type mentioned above is known for example from DE 198 18 156 A1.
- the piston arrangement is adjusted piezohydraulically with the aid of a piezo element, which is arranged in the housing and undergoes a change in length in the direction of the travel of the piston arrangement when a voltage is applied.
- a liquid column locked in the bore of the housing is displaced, which in turn acts on the piston arrangement.
- DE 198 10 593 shows a disc brake in which an electromechanically actuated parking brake and a hydraulically actuated service brake are combined with one another.
- One of the brake pads is connected to a threaded spindle, which is adjustable parallel to the brake disc axis by an electric motor via a gear. This arrangement forms the parking brake.
- the other brake pad is connected to a hydraulic piston which is connected to the hydraulic circuit of the service brake.
- This disc brake is also relatively voluminous and complex in its construction.
- the invention has for its object to provide a disc brake of the type mentioned, in which a service brake and an emergency or parking brake can be combined in a simple and space-saving manner, which can be operated completely independently.
- the piston arrangement comprises a first partial piston coupled to a mechanical or electromechanical actuator and a separate second partial piston arranged co-axially to the latter, which between them delimit a lockable pressure chamber which communicates with the pressure medium circuit of a pressure medium-operated emergency or Parking brake device is connectable.
- both partial pistons can be moved together with the liquid column between them by the mechanical or electromechanical actuator for actuating the brake.
- the brake can also be actuated by supplying pressure medium to the pressure chamber, in which case only the second partial piston acting directly on the brake linings is displaced.
- the variable distance between the two pistons enables the brake to be readjusted automatically to compensate for the abrasion of the brake pads.
- a spacer which is smaller in diameter than the piston diameter is expediently provided between the piston surfaces of the two partial pistons delimiting the pressure chamber.
- the two partial pistons can be arranged axially one behind the other.
- the first part of the piston is pot-shaped with a bottom and a piston wall, the second part of the piston being guided telescopically in the first part of the piston and the pressure space between the bottom of the the first partial piston and the piston surface of the second partial piston facing it are connected to the receiving bore in the housing by a radial bore in the wall of the first partial piston.
- the actuating drive can comprise a cam drive acting on the first partial piston, the actuating cam in turn being able to be adjusted by purely mechanical means or else by an electric motor.
- the actuator has an electric motor and an adjusting spindle driven by it, which acts on the first partial piston.
- Fig. 2 is a partially sectioned schematic representation of a first
- Fig. 3 is a representation of a second corresponding to FIG. 2
- Fig. 4 is a schematic representation of a modified embodiment of the actuator for the first piston.
- FIG. 2 This shows schematically a brake caliper or a brake caliper 10 with a caliper part 12 which overlaps a brake disc 14.
- brake pads 16 are arranged on both sides of the brake disc 14, one of which is mounted with the pliers part and the other is displaceably mounted in the pliers part in a manner not shown.
- the partial piston 18 is displaceably arranged in a receiving bore 19 of a cylindrical housing part 20 of the brake caliper 10 and can be moved in the axial direction, i.e. by means of an electromechanical actuator 22, which comprises an electric motor 24 and an adjusting spindle 26 driven thereby. can be adjusted parallel to the axis of the brake disc 14 in order to tension the brake pads 16 against the brake disc 14.
- the first partial piston 18 is cup-shaped with a bottom 28 and a piston wall 30.
- a second partial piston 32 is telescopically displaceable, which can also act on the brake pad 16.
- the first partial piston 18 and the second partial piston 32 delimit a pressure chamber 34 between them. This is connected via a radial bore 36 in the wall 30 of the first partial piston 18 to a section 38, the bore 19 of the housing 20.
- This section 38 lies between two ring seals 40 and 42 enclosing the first partial piston 18 and is connected to the one Radial bore 44 penetrating the wall of the housing 20 can be connected to a hydraulic actuation circuit.
- the embodiment according to FIG. 3 differs from that of FIG. 2 in that the two partial pistons are not guided telescopically into one another but are arranged axially one behind the other.
- the pressure space between the two partial pistons 18 and 32 is kept open by a spacing element 46 which is formed on the piston surface of the second partial piston 32 facing the first partial piston 18 and which ensures that the mutually facing surfaces of the two partial pistons 18 and 32 can always be pressurized.
- FIG. 2 A brake system using a disc brake shown in FIG. 2 will now be explained with reference to FIG. 1, wherein the embodiment according to FIG. 2 could also be replaced by that of FIG. 3.
- the electric motor 24 of the actuator 22 is connected via a line 48 to a control device 50 which is connected to a voltage source 52.
- the control device 50 is connected via a line 54 to a converter 56, which converts the actuation path of a brake pedal 58 into an electrical signal, which is fed to the control device 50.
- the control unit 50 actuates the electric motor 24 on the basis of this signal, by means of which the first partial piston 18 is in turn axially adjusted in the direction of the brake disc 14 in order to clamp it between the brake pads 16 and thus exert a braking force on the brake disc 14.
- the brake described so far represents the service brake of a vehicle brake system.
- the emergency braking or parking brake system comprises a hydraulic circuit 60 which is connected to the bore 44 in the housing 20.
- the hydraulic circuit has a pump 64 driven by a motor 62, the hydraulic fluid from a tank 66 via a check valve 68 through a line 69 on the one hand to a pressure accumulator 70 and on the other hand via a first solenoid valve 72
- Pressure chamber 34 can pump.
- the pump 64 is connected via a signal line 74 to a control unit 76 which is connected to a voltage source 78.
- the voltage sources 52 and 78 are independent of one another, so that the service brake system and the emergency brake system are functional independently of one another.
- the pressure in the pressure accumulator 70 is detected by a pressure sensor 79, which is connected to the control unit 76 via a signal line 80.
- the pressure in the pressure chamber 34 is detected by a pressure sensor 82 which is connected to the control devices 50 and 76 via signal lines 84 and 86.
- the line section 87 of the hydraulic circuit lying between the first solenoid valve 72 and the pressure chamber 34 can be connected to the tank 66 via a return line 88 and a second solenoid valve 90.
- An expansion tank 94 is filled with hydraulic fluid via the section of the line 69 and a line section 92 lying between the check valve 68 and the pump 64. This expansion tank 94 can be connected to the pressure chamber 34 via a third solenoid valve 96.
- the three solenoid valves 72, 90 and 96 are each controlled by the control unit 76 via signal lines 98, 100 and 102.
- the pressure chamber 34 is sealed off.
- the two partial pistons 18 and 32 behave like a rigid piston, which can be adjusted together by means of the electromechanical actuator 22 to actuate the service brake.
- the first solenoid valve 72 is opened so that pressure fluid can flow from the reservoir 70 or from the pump 64 into the pressure chamber 34.
- the second partial piston 32 is moved in the direction of the brake disk 14 in order to clamp it between the brake pads 16.
- the brake pressure is specified by the control unit.
- the control unit 76 receives a corresponding signal via the brake pedal 58, the converter 56 and a signal line 104, on the basis of which the brake pressure is then selected accordingly. If the pressure chamber 34 is to be relieved again, the first solenoid valve 72 is blocked and the second solenoid valve 90 is opened, as a result of which pressure fluid can flow out of the pressure chamber 34 into the tank 66.
- FIG. 4 shows an alternative embodiment of an actuator for the adjustment of the first partial piston 18. This is connected to a plunger 104 protruding from the housing 20, which rests on a cam 106. This is rotatably mounted about an axis 108 and can be adjusted, for example, either via an electric motor 110 or also via a schematically indicated linkage 112.
- All suitable materials such as metal, plastic or ceramic can be used to manufacture the brake caliper.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03704563A EP1472471A1 (en) | 2002-02-06 | 2003-02-06 | Disk brake for a vehicle braking system |
AU2003206856A AU2003206856A1 (en) | 2002-02-06 | 2003-02-06 | Disk brake for a vehicle braking system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002104852 DE10204852A1 (en) | 2002-02-06 | 2002-02-06 | Disc brake for a vehicle brake system |
DE10204852.5 | 2002-02-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003067113A1 true WO2003067113A1 (en) | 2003-08-14 |
Family
ID=7713734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/001199 WO2003067113A1 (en) | 2002-02-06 | 2003-02-06 | Disk brake for a vehicle braking system |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1472471A1 (en) |
AU (1) | AU2003206856A1 (en) |
DE (1) | DE10204852A1 (en) |
PL (1) | PL369787A1 (en) |
WO (1) | WO2003067113A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7455152B2 (en) * | 2001-08-08 | 2008-11-25 | Pbr Australia Pty Ltd. | Disc brake caliper |
EP2674336A1 (en) | 2012-06-11 | 2013-12-18 | "DEBON" Spólka z o.o | Overrun disk brake |
CN112065888A (en) * | 2020-09-13 | 2020-12-11 | 黄颖 | Lorry disc brake adopting braking material |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7559413B2 (en) | 2003-12-19 | 2009-07-14 | Robert Bosch Gmbh | Automatic parking brake |
PL216078B1 (en) | 2010-02-11 | 2014-02-28 | Linter Spolka Z Ograniczona Odpowiedzialnoscia | Disc brake with release |
PL216079B1 (en) | 2010-02-11 | 2014-02-28 | Linter Spolka Z Ograniczona Odpowiedzialnoscia | Disc brake |
DE102014202185B4 (en) | 2014-02-06 | 2024-01-11 | Robert Bosch Gmbh | Braking device and method for actuating a braking device for an automatic parking brake |
CN107380153B (en) * | 2017-06-09 | 2019-05-31 | 宁波吉利汽车研究开发有限公司 | A kind of braking system for vehicle |
CN107628013A (en) * | 2017-08-14 | 2018-01-26 | 浙江零跑科技有限公司 | A kind of new energy car electric controlled brake system and method |
CN107738639A (en) * | 2017-09-11 | 2018-02-27 | 浙江零跑科技有限公司 | A kind of electric car bevel gear type braking executive device and method |
PL234383B1 (en) * | 2017-10-03 | 2020-02-28 | Politechnika Wroclawska | Method for improving a disk brake efficiency of operation and the disk brake intended for execution of this method |
CN108061115A (en) * | 2017-11-27 | 2018-05-22 | 浙江零跑科技有限公司 | Used in new energy vehicles braking executive device and control method |
CN112145592B (en) * | 2019-06-28 | 2021-11-12 | 比亚迪股份有限公司 | Disc brake, brake-by-wire system and vehicle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5682965A (en) * | 1995-08-12 | 1997-11-04 | Continental Aktiengesellschaft | Brake actuator having a hydraulic transmission |
DE19648581A1 (en) * | 1996-11-23 | 1998-05-28 | Teves Gmbh Alfred | Motor vehicle disc brake with parking facility |
WO1999027272A1 (en) * | 1997-11-21 | 1999-06-03 | Continental Teves Ag & Co. Ohg | Electrically actuated brake device for motor vehicles |
EP1195538A1 (en) * | 2000-10-09 | 2002-04-10 | GUSTAV MAGENWIRTH GmbH & Co. | Electrically controlled brake actuator |
-
2002
- 2002-02-06 DE DE2002104852 patent/DE10204852A1/en not_active Withdrawn
-
2003
- 2003-02-06 EP EP03704563A patent/EP1472471A1/en not_active Withdrawn
- 2003-02-06 PL PL03369787A patent/PL369787A1/en not_active Application Discontinuation
- 2003-02-06 WO PCT/EP2003/001199 patent/WO2003067113A1/en not_active Application Discontinuation
- 2003-02-06 AU AU2003206856A patent/AU2003206856A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5682965A (en) * | 1995-08-12 | 1997-11-04 | Continental Aktiengesellschaft | Brake actuator having a hydraulic transmission |
DE19648581A1 (en) * | 1996-11-23 | 1998-05-28 | Teves Gmbh Alfred | Motor vehicle disc brake with parking facility |
WO1999027272A1 (en) * | 1997-11-21 | 1999-06-03 | Continental Teves Ag & Co. Ohg | Electrically actuated brake device for motor vehicles |
EP1195538A1 (en) * | 2000-10-09 | 2002-04-10 | GUSTAV MAGENWIRTH GmbH & Co. | Electrically controlled brake actuator |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7455152B2 (en) * | 2001-08-08 | 2008-11-25 | Pbr Australia Pty Ltd. | Disc brake caliper |
EP2674336A1 (en) | 2012-06-11 | 2013-12-18 | "DEBON" Spólka z o.o | Overrun disk brake |
CN112065888A (en) * | 2020-09-13 | 2020-12-11 | 黄颖 | Lorry disc brake adopting braking material |
Also Published As
Publication number | Publication date |
---|---|
EP1472471A1 (en) | 2004-11-03 |
PL369787A1 (en) | 2005-05-02 |
DE10204852A1 (en) | 2003-08-07 |
AU2003206856A1 (en) | 2003-09-02 |
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