WO2014177691A1 - Bremssystem mit elektrischer servobremse - Google Patents
Bremssystem mit elektrischer servobremse Download PDFInfo
- Publication number
- WO2014177691A1 WO2014177691A1 PCT/EP2014/058987 EP2014058987W WO2014177691A1 WO 2014177691 A1 WO2014177691 A1 WO 2014177691A1 EP 2014058987 W EP2014058987 W EP 2014058987W WO 2014177691 A1 WO2014177691 A1 WO 2014177691A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- axis
- racks
- brake
- lever
- master cylinder
- Prior art date
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
- 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
-
- 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
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
Definitions
- the present invention relates to a brake system with master cylinder and electric power brake, which includes:
- an electric motor which drives a screw which engages twin helical gears each supported by a shaft each provided with a gear meshing with a rack of a pair of racks diametrically opposed to the axis (xx) of the electric motor Servo brake cooperates, which is also that of the master cylinder,
- the brake systems with master cylinder and electric power brake with transmission of the movement of the electric motor to the push rod of the master cylinder by two with respect to the axis (xx) of the system symmetric mechanisms for transmitting the movement of the electric motor to the push rod are known in various forms.
- a known system has two racks in symmetrical position, which slide in rails of the body of the electric power brake and rely on a cup-shaped support, which Reaction disc absorbs.
- This assembly has the goal of making the racks independent of the electric power brake body and avoiding an actuating piston slidably housed in the body of the electric power brake which drives the push rod by means of its reaction disc.
- Reaction disc practically necessarily arranged obliquely, since in practice the two racks do not advance rigorously equal; the reaction disc is positioned at an angle, and this has a negative effect on the reliability of the kinematic chain to the master cylinder.
- FIGS 3A and B show schematically this situation.
- FIG. 3A shows the prior art electric power brake 200, which consists of a servo brake body 225 that guides two racks 224a, 224b in positions symmetrical with respect to the axis xx of the power brake and master cylinder system. It has a control rod 232 which is connected to the brake pedal, not shown, and acts on the plunger 231 which controls the servo brake by detecting its movement. The plunger 231 abuts against an intermediate piston 240, which is supported by a cup-shaped carrier 230 which receives the reaction disc 227. In the normal position, the intermediate piston 240 is not in contact with the reaction disk 227.
- the cup-shaped carrier 230 comes in front of the two racks 224a, 224b to be pushed by them when they are advanced (to the left as shown in FIG. 3A), driven by the twin transmission with face pinions and helical-shaft-bearing shafts that are themselves from the screw of the electric motor (not shown) are driven.
- the carrier 230 of the reaction disc 227 slants, as shown in Fig. 3B, and the same applies to the reaction disc, which abuts against the push rod exposed to a lateral force component .
- the aim of the present invention is to eliminate the disadvantages of the brake system with master cylinder and electric power brake in order to prevent the play of the two rack-and-rack transmissions from affecting the guidance of the push rod.
- the invention has a braking system of the type defined above, characterized in that the two racks are guided in two rails of the body of the electric power brake, the rails being parallel to the axis (xx) of the system
- the master cylinder and the electric power brake are located, and a lever whose two ends rest on the racks is connected by a fulcrum to a carrier that flattens against the reaction disk, thereby separating the orientation of the lever and that of the carrier.
- This device for transmitting the movement of the electric motor of the power brake to the racks and push rod makes the movement of the racks regardless of the bearing direction on the reaction disc, which always remains perfectly in the axis (xx) of the servo brake.
- the independence of the racks and the backlash of the kinematic chains have no influence on the direction of the force exerted on the master cylinder controlling push rod force.
- This assembly also has the advantage of ensuring a balanced distribution of loads between the two racks.
- the articulation point consists of a ball joint arranged in the axis of the servo brake or of two articulation points which are symmetrical with respect to the axis and whose geometric axis is perpendicular to the plane of the toothed racks passing through the axis, this makes it possible in a simple manner to move away from all To eliminate transverse components that could be induced by the movement of the racks in the lever, so that the only resultant of the loads exerted on the lever manifests itself in a thrust in the axle.
- the points of symmetry with respect to the axis xx consist of two ball joints or two axes.
- At least the lever is provided with openings which allow the plunger to act directly on the reaction disc by means of the carrier.
- the lever has the shape of a rectangular or rounded frame, which by two coaxial, with respect to the axis symmetrical pivot points whose geometric axis is perpendicular to the plane of the racks through the axis, is connected.
- lever and the carrier are simple solutions that make it possible to prevent the resultant of the forces transmitted from the lever to the carrier from having even small transverse components, so that the reaction disc perfectly aligns with the axis xx of the system Power is pushed.
- FIG. 1 is a schematic overall view of the electric power brake
- Figure 2 is a schematic view of the main part of the electric power brake according to the invention.
- FIG. 3A is a very schematic view of the prior art electric power brake according to the prior art
- Figure 3B is a very schematic view analogous to that of Figure 3A but showing the tilt of the support of the reaction disc and the slope resulting therefrom for the reaction disc.
- Figure 1 shows an overall view of a brake system with master cylinder 1 and electric power brake 2 according to the invention, wherein the master cylinder 1 and the operating pedal 3 are highly schematic.
- the electric power brake 2 consists of an electric motor 21 whose output shaft carries a screw 22 to transmit the torque of the motor symmetrically by two symmetrical transmissions 23a, 23b with respect to the axis xx of the brake system (master cylinder and electric power brake).
- the brake pedal 3 is located on the right in the figure (back), and the master cylinder 1 is located on the left in the figure (front).
- the transmissions 23a, 23b of the electric motor consist of two helical gears 231, each supported by a shaft 232 provided with a spur gear 233, each cooperating with a rack 24a, 24b.
- the two racks 24a, 24b are slidably housed in guides 251 of the body 25 of the servo brake 2.
- the racks 24a, 24b rest on the reaction disc 27 which comes against the push rod 26 by means of a lever 28 and a support 29, which is shown in detail in Figure 2, and the push rod 26 actuates the master cylinder 1.
- the carrier 29 remains perpendicular to the axis xx of the system according to the plane of the support surface 271 of the reaction disk 27.
- the articulation point 282 is a ball joint, which is arranged in the axis xx of the power brake, so that the path differences of the pushed racks 24a, 24b not the Affecting resultant of the loads which are directed in the axis xx and press without transverse component on the support 29 and so on the reaction disk 27.
- the articulation point 282 consists of two articulation points symmetrical with respect to the axis xx, and the geometric axis passing through these two symmetrical articulation points 282 is perpendicular to the plane of the toothed racks 24a, 24b and passing through the axis xx.
- the articulation points 282 can be ball joints or axles.
- the lever 28 and its support 29 are hollowed out about the axis (xx) to allow passage of the plunger 31 along the axis (xx) connected to the control rod 32 coming from the brake pedal 3, in the case of a hinge 282 from a ball joint, which is located in the axis xx, the lever 28 has at least two openings which are traversed by the legs of a bracket which rests on the support 29 and makes it possible to receive the plunger 31.
- the plunger 31 can then press on the reaction disc 27 and the push rod 26 in case of failure of the electric power brake push to operate the master cylinder 1 and directly control the braking.
- the lever 28 has the shape of a rectangular or rounded frame, which is connected by two coaxial hinge axes, which form the two with respect to the axis xx to the carrier 29 symmetrical articulation points 282.
- the lever 28 and its carrier 29 allow to balance the loads between the two racks 24a, 24b, which guarantees the good operation and reliability of the braking system.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480024883.8A CN105143000B (zh) | 2013-05-03 | 2014-05-02 | 具有电的伺服制动器的制动系统 |
US14/888,730 US9650028B2 (en) | 2013-05-03 | 2014-05-02 | Brake system having an electric servo brake |
DE112014002259.4T DE112014002259A5 (de) | 2013-05-03 | 2014-05-02 | Bremssystem mit elektrischer Servobremse |
JP2016508196A JP6227119B2 (ja) | 2013-05-03 | 2014-05-02 | 電気サーボブレーキを備えたブレーキシステム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1354092 | 2013-05-03 | ||
FR1354092A FR3005295B1 (fr) | 2013-05-03 | 2013-05-03 | Systeme de freins a servofrein electrique |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014177691A1 true WO2014177691A1 (de) | 2014-11-06 |
Family
ID=48906335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/058987 WO2014177691A1 (de) | 2013-05-03 | 2014-05-02 | Bremssystem mit elektrischer servobremse |
Country Status (6)
Country | Link |
---|---|
US (1) | US9650028B2 (de) |
JP (1) | JP6227119B2 (de) |
CN (1) | CN105143000B (de) |
DE (1) | DE112014002259A5 (de) |
FR (1) | FR3005295B1 (de) |
WO (1) | WO2014177691A1 (de) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3033754A1 (fr) * | 2015-03-18 | 2016-09-23 | Peugeot Citroen Automobiles Sa | Dispositif de commande de freinage a assistance electrique comportant un reducteur du type palan |
FR3033753A1 (fr) * | 2015-03-18 | 2016-09-23 | Peugeot Citroen Automobiles Sa | Dispositif de commande de freinage a assistance electrique comportant un reducteur cycloidal |
WO2017046380A1 (de) * | 2015-09-17 | 2017-03-23 | Lucas Automotive Gmbh | Elektromechanischer bremskraftverstärker |
WO2017046383A1 (de) * | 2015-09-17 | 2017-03-23 | Lucas Automotive Gmbh | Elektromechanischer bremskraftverstärker |
WO2018077539A1 (de) | 2016-10-27 | 2018-05-03 | Zf Friedrichshafen Ag | Verzahnung und elektromechanischer bremskraftverstärker |
DE102017221422A1 (de) * | 2017-11-29 | 2019-05-29 | Continental Teves Ag & Co. Ohg | Druckbereitstellungseinheit für Bremssysteme und Bremssystem |
US10814854B2 (en) | 2015-09-17 | 2020-10-27 | Zf Active Safety Gmbh | Assembly having a brake cylinder and an electromechanical brake booster |
DE102019205989A1 (de) * | 2019-04-26 | 2020-10-29 | Zf Friedrichshafen Ag | Verfahren zum Herstellen eines Zahnstangenmoduls, Zahnstangenmodul und Bremskraftverstärker |
DE102021121700A1 (de) | 2021-08-20 | 2023-02-23 | Zf Active Safety Gmbh | Betätigungseinheit, Bremskraftverstärker, Fahrzeugbremsanlage und Baugruppe hierfür |
DE102021121704A1 (de) | 2021-08-20 | 2023-02-23 | Zf Active Safety Gmbh | Baugruppe für einen Bremskraftverstärker und Bremskraftverstärker |
DE102021121701A1 (de) | 2021-08-20 | 2023-02-23 | Zf Active Safety Gmbh | Elektromechanischer Bremskraftverstärker, Fahrzeugbremsanlage, Baugruppe hierfür und Gleitelement |
DE102021121702A1 (de) | 2021-08-20 | 2023-02-23 | Zf Active Safety Gmbh | Getriebebaugruppe und Bremskraftverstärker |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3029478A1 (fr) * | 2014-12-08 | 2016-06-10 | Peugeot Citroen Automobiles Sa | Dispositif d’assistance electrique du freinage comportant un secteur dente lie a la pedale de frein |
JP6930200B2 (ja) * | 2017-04-26 | 2021-09-01 | 株式会社アドヴィックス | 車両の制動制御装置 |
NO344638B1 (en) * | 2017-11-08 | 2020-02-17 | Produktide As | Worm gear system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102009001142A1 (de) * | 2009-02-25 | 2010-08-26 | Robert Bosch Gmbh | Elektromechanischer Bremskraftverstärker |
WO2011003643A1 (de) * | 2009-07-06 | 2011-01-13 | Robert Bosch Gmbh | Kraftübertragungsanordnung |
EP2465741A1 (de) * | 2010-12-20 | 2012-06-20 | Robert Bosch GmbH | Elektrisch betätigtes Bremssystem |
Family Cites Families (12)
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DE3928110A1 (de) * | 1989-08-25 | 1991-02-28 | Bosch Gmbh Robert | Druckerzeuger fuer eine hydraulische fahrzeug-bremsanlage |
JPH1026125A (ja) * | 1996-07-10 | 1998-01-27 | Nec Corp | 筐体の角度調整機構 |
JP4680434B2 (ja) * | 2001-07-09 | 2011-05-11 | 株式会社ナカオ | 三次元自在ジョイントを利用した車載用支持台 |
CN101559766B (zh) * | 2009-06-01 | 2011-08-10 | 奇瑞汽车股份有限公司 | 一种汽车制动系统 |
CN101708721A (zh) * | 2009-12-14 | 2010-05-19 | 奇瑞汽车股份有限公司 | 一种基于电机驱动的汽车盘式制动方法及装置 |
FR2979089B1 (fr) * | 2011-08-19 | 2014-02-14 | Bosch Gmbh Robert | Systeme de freins dynamique electro-hydraulique et procede de commande |
FR2992388B1 (fr) * | 2012-06-25 | 2014-07-18 | Bosch Gmbh Robert | Servofrein electrique a compensation de jeu de transmission |
DE102012222949A1 (de) * | 2012-12-12 | 2014-06-12 | Robert Bosch Gmbh | Getriebevorrichtung und elektromotorischer Bremskraftverstärker |
FR3005294B1 (fr) * | 2013-05-03 | 2015-08-28 | Bosch Gmbh Robert | Servofrein electrohydraulique |
DE102013208672A1 (de) * | 2013-05-13 | 2014-11-13 | Robert Bosch Gmbh | Elektromechanische Bremsvorrichtung für ein Bremssystem und Bremssystem für ein Fahrzeug |
US9776604B2 (en) * | 2014-12-30 | 2017-10-03 | Mando Corporation | Integrated brake device for vehicle |
DE102015200106B3 (de) * | 2015-01-08 | 2016-05-12 | Ford Global Technologies, Llc | Steuerungsverfahren für ein hydraulisches Bremssystem eines Kraftfahrzeugs sowie hydraulisches Bremssystem |
-
2013
- 2013-05-03 FR FR1354092A patent/FR3005295B1/fr not_active Expired - Fee Related
-
2014
- 2014-05-02 CN CN201480024883.8A patent/CN105143000B/zh not_active Expired - Fee Related
- 2014-05-02 JP JP2016508196A patent/JP6227119B2/ja not_active Expired - Fee Related
- 2014-05-02 WO PCT/EP2014/058987 patent/WO2014177691A1/de active Application Filing
- 2014-05-02 DE DE112014002259.4T patent/DE112014002259A5/de not_active Withdrawn
- 2014-05-02 US US14/888,730 patent/US9650028B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102009001142A1 (de) * | 2009-02-25 | 2010-08-26 | Robert Bosch Gmbh | Elektromechanischer Bremskraftverstärker |
WO2011003643A1 (de) * | 2009-07-06 | 2011-01-13 | Robert Bosch Gmbh | Kraftübertragungsanordnung |
EP2465741A1 (de) * | 2010-12-20 | 2012-06-20 | Robert Bosch GmbH | Elektrisch betätigtes Bremssystem |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3033754A1 (fr) * | 2015-03-18 | 2016-09-23 | Peugeot Citroen Automobiles Sa | Dispositif de commande de freinage a assistance electrique comportant un reducteur du type palan |
FR3033753A1 (fr) * | 2015-03-18 | 2016-09-23 | Peugeot Citroen Automobiles Sa | Dispositif de commande de freinage a assistance electrique comportant un reducteur cycloidal |
US10946845B2 (en) | 2015-09-17 | 2021-03-16 | Zf Active Safety Gmbh | Electromechanical brake booster |
US10814854B2 (en) | 2015-09-17 | 2020-10-27 | Zf Active Safety Gmbh | Assembly having a brake cylinder and an electromechanical brake booster |
WO2017046380A1 (de) * | 2015-09-17 | 2017-03-23 | Lucas Automotive Gmbh | Elektromechanischer bremskraftverstärker |
WO2017046383A1 (de) * | 2015-09-17 | 2017-03-23 | Lucas Automotive Gmbh | Elektromechanischer bremskraftverstärker |
CN108349480A (zh) * | 2015-09-17 | 2018-07-31 | 卢卡斯汽车股份有限公司 | 机电制动助力器 |
US10682996B2 (en) | 2015-09-17 | 2020-06-16 | Zf Active Safety Gmbh | Electromechanical brake force booster |
DE102016221150A1 (de) | 2016-10-27 | 2018-05-03 | Zf Friedrichshafen Ag | Verzahnung und elektromechanischer Bremskraftverstärker |
WO2018077539A1 (de) | 2016-10-27 | 2018-05-03 | Zf Friedrichshafen Ag | Verzahnung und elektromechanischer bremskraftverstärker |
DE102017221422A1 (de) * | 2017-11-29 | 2019-05-29 | Continental Teves Ag & Co. Ohg | Druckbereitstellungseinheit für Bremssysteme und Bremssystem |
DE102019205989A1 (de) * | 2019-04-26 | 2020-10-29 | Zf Friedrichshafen Ag | Verfahren zum Herstellen eines Zahnstangenmoduls, Zahnstangenmodul und Bremskraftverstärker |
WO2020216511A1 (de) | 2019-04-26 | 2020-10-29 | Zf Friedrichshafen Ag | Verfahren zum herstellen eines zahnstangenmoduls, zahnstangenmodul und bremskraftverstärker |
DE102019205989B4 (de) | 2019-04-26 | 2024-02-15 | Zf Friedrichshafen Ag | Elektromechanischer Bremskraftverstärker |
DE102021121700A1 (de) | 2021-08-20 | 2023-02-23 | Zf Active Safety Gmbh | Betätigungseinheit, Bremskraftverstärker, Fahrzeugbremsanlage und Baugruppe hierfür |
DE102021121704A1 (de) | 2021-08-20 | 2023-02-23 | Zf Active Safety Gmbh | Baugruppe für einen Bremskraftverstärker und Bremskraftverstärker |
DE102021121701A1 (de) | 2021-08-20 | 2023-02-23 | Zf Active Safety Gmbh | Elektromechanischer Bremskraftverstärker, Fahrzeugbremsanlage, Baugruppe hierfür und Gleitelement |
DE102021121702A1 (de) | 2021-08-20 | 2023-02-23 | Zf Active Safety Gmbh | Getriebebaugruppe und Bremskraftverstärker |
Also Published As
Publication number | Publication date |
---|---|
CN105143000A (zh) | 2015-12-09 |
JP2016515494A (ja) | 2016-05-30 |
US20160082940A1 (en) | 2016-03-24 |
JP6227119B2 (ja) | 2017-11-08 |
DE112014002259A5 (de) | 2016-02-25 |
US9650028B2 (en) | 2017-05-16 |
CN105143000B (zh) | 2017-11-17 |
FR3005295A1 (fr) | 2014-11-07 |
FR3005295B1 (fr) | 2015-08-28 |
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