DE102006033333A1 - Hydraulic brake for vehicle with integral electromechanical parking brake has a drive element to compensate for brake lining wear - Google Patents
Hydraulic brake for vehicle with integral electromechanical parking brake has a drive element to compensate for brake lining wear Download PDFInfo
- Publication number
- DE102006033333A1 DE102006033333A1 DE102006033333A DE102006033333A DE102006033333A1 DE 102006033333 A1 DE102006033333 A1 DE 102006033333A1 DE 102006033333 A DE102006033333 A DE 102006033333A DE 102006033333 A DE102006033333 A DE 102006033333A DE 102006033333 A1 DE102006033333 A1 DE 102006033333A1
- Authority
- DE
- Germany
- Prior art keywords
- brake
- piston
- ramp
- hydraulic
- threaded nut
- 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.)
- Withdrawn
Links
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 13
- 230000000977 initiatory effect Effects 0.000 claims 1
- 230000020347 spindle assembly Effects 0.000 claims 1
- 230000033001 locomotion Effects 0.000 description 17
- 230000005540 biological transmission Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- B60T13/10—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 fluid assistance, drive, or release
- B60T13/58—Combined or convertible systems
- B60T13/588—Combined or convertible systems both fluid and mechanical assistance or drive
-
- 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
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
- F16D65/567—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake
-
- 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
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/58—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with eccentric or helical body
-
- 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
- F16D2125/36—Helical cams, Ball-rotating ramps
- F16D2125/38—Helical cams, Ball-rotating ramps with plural cam or ball-ramp mechanisms arranged concentrically with the brake rotor axis
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine hydraulische Fahrzeugbremse mit Feststellbremsvorrichtung, insbesondere für Kraftfahrzeuge, mit einem Bremsgehäuse, in dem ein hydraulischer Betriebsdruckraum von einem Bremskolben begrenzt ist, wobei der hydraulische Betriebsdruckraum zur Durchführung von Betriebsbremsungen mit hydraulischem Druckmittel beaufschlagbar ist, so dass der Bremskolben zur Erzielung einer Bremswirkung entlang einer Kolbenlängsachse betätigbar ist, und wobei die Feststellbremsvorrichtung auf den Bremskolben mittels einer Betätigungseinrichtung wirkt, die den Bremskolben zur Durchführung von Feststellbremsungen mit Hilfe eines von einem elektromechanischen Aktuator angetriebenen Wälzkörperrampengetriebes betätigt und in der betätigten Stellung hält, und wobei eine Gewindemutter-Spindel-Anordnung zur Kompensation eines Bremsbelagverschleißes mit dem Bremskolben in Wirkverbindung steht.The The present invention relates to a hydraulic vehicle brake with parking brake device, in particular for motor vehicles, with a brake housing, in which limits a hydraulic operating pressure chamber of a brake piston is, wherein the hydraulic operating pressure chamber for performing Service brakes can be acted upon by hydraulic pressure medium is, so that the brake piston to achieve a braking effect along a piston longitudinal axis actuated is, and wherein the parking brake device on the brake piston by means of an actuating device acts on the brake piston to perform parking braking with the help of a driven by an electromechanical actuator rolling-element ramp actuated and in the pressed Holding position, and wherein a threaded nut spindle arrangement for Compensation of brake pad wear with the brake piston in Active compound is.
Eine
derartige hydraulische Fahrzeugbremse ist beispielsweise aus der
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine hydraulische Fahrzeugbremse der eingangs genannten Gattung dahingehend zu verbessern, dass der Einbauraum an die beschränkten Verhältnisse angepasst wird.Of the The present invention is therefore based on the object, a hydraulic Vehicle brake of the type mentioned to improve to that the installation space is adapted to the limited conditions.
Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Dabei steht eine Gewindemutter-Spindel-Anordnung zur Kompensation eines Bremsbelagverschleißes mit dem Bremskolben in Wirkverbindung, wobei ein Mitnahmeelement vorgesehen ist, das einerseits die Gewindemutter-Spindel-Anordnung und andererseits das Wälzkörperrampengetriebe mit dem elektromechanischen Aktuator koppelt.These The object is achieved by a Device solved with the features of claim 1. there is a threaded nut-spindle arrangement for compensating a Brake pad wear with the brake piston in operative connection, wherein a driving element is provided, on the one hand, the threaded nut spindle arrangement and on the other hand, the Wälzkörperrampengetriebe coupled with the electromechanical actuator.
Weitere vorteilhafte Ausgestaltungen sind den Unteransprüchen entnehmbar. So ist in einer besonders vorteilhaften Weiterbildung des Erfindungsgegenstandes vorgesehen, dass das Mitnahmeelement derart angeordnet ist, dass bei einer Einleitung eines Feststellbremsvorganges zunächst die Gewindemutter vom elektromechanischen Aktuator angetrieben wird bis ein Verschleiß der Bremsbeläge überwunden ist und mindestens ein Bremsbelag zur Anlage an eine Bremsscheibe gelangt und dass anschließend das Wälzkörperrampengetriebe zur Erzeugung einer Zuspannkraft vom elektromechanischen Aktuator angetrieben wird.Further advantageous embodiments are the dependent claims. So is in a particularly advantageous development of the subject invention provided that the entrainment element is arranged such that at an introduction of a parking brake first the Threaded nut is driven by the electromechanical actuator until a wear of the Brake pads overcome is and at least one brake pad for contact with a brake disc arrives and that subsequently the Wälzkörperrampengetriebe for generating a clamping force from the electromechanical actuator is driven.
Bei einer besonders bevorzugten Ausführungsform des Erfindungsgegenstandes ist ein Federelement vorgesehen, das die Funktion einer elastischen Torsionskupplung zwischen der Gewindemutter und dem Mitnahmeelement ausübt. Dabei ist das Federelement als Schlingfeder ausgebildet.at a particularly preferred embodiment of the subject invention, a spring element is provided which the function of an elastic torsion coupling between the nut and the entrainment element exercises. In this case, the spring element is designed as a wrap spring.
Bei einer vorteilhaften Weiterbildung des Erfindungsgegenstandes ist das Wälzkörperrampengetriebe durch eine Antriebs- sowie eine Abtriebsrampe gebildet, wobei zwischen den Rampenhälften Wälzkörper vorgesehen sind, über welche die Antriebsrampe mit der Abtriebsrampe in Kontakt steht. Dabei ist besonders vorteilhaft, dass die Antriebsrampe auf ihrer den Wälzkörpern abgewandten Seite derart ausgebildet ist, dass eine kraftschlüssige bzw. formschlüssige Verbindung mit dem Mitnahmeelement ermöglicht wird.at an advantageous development of the subject invention is the Wälzkörperrampengetriebe through a drive as well formed an output ramp, wherein provided between the ramp halves rolling elements are about which the drive ramp is in contact with the output ramp. It is particularly advantageous that the drive ramp on their facing away from the rolling elements Side is designed such that a non-positive or positive Connection with the driving element is made possible.
Zur Durchführung von Feststellbremsungen ist vorgesehen, dass die Gewindemutter-Spindel-Anordnung selbsthemmend ausgebildet ist. Durch diese Maßnahme wird die Zuspannkraft über die Dauer der Parkzeit ohne zusätzliche Verriegelungseinheit aufrechterhalten. Dies setzt einen elektromechanischen Antrieb voraus, bei dem ein Zurückdrehen nur durch ein Motormoment möglich ist.to execution of parking brakes is provided that the nut-spindle arrangement self-locking is formed. By this measure, the clamping force on the Duration of parking time without additional Maintain locking unit. This sets an electromechanical drive ahead, in which a turning back only possible with an engine torque is.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels im Zusammenhang mit der beiliegenden Zeichnung näher erläutert. In der Zeichnung zeigen:The Invention will be related to an embodiment in the context closer with the enclosed drawing explained. In the drawing show:
Die
erfindungsgemäße Fahrzeugbremse
ist in
Eine
Betätigungseinrichtung,
die zur Durchführung
einer Feststellbremsvorganges erforderlich ist, wird im Wesentlichen
durch ein Wälzkörperrampengetriebe
Der
Aufbau der hydraulischen Zuspannbaugruppe besteht aus dem Bremskolben
Durch
die eben beschriebene Gewindemutter-Spindel-Anordnung
Damit
die Antriebsrampe
Der
Betriebsbremsmodus wird nachfolgend anhand von
Der
Parkbremsmodus zur Durchführung
von Feststellbremsvorgängen
wird anhand von
Die erfindungsgemäße Fahrzeugbremse hat den Vorteil einer geringeren Baulänge. Außerdem ist nur eine geringere Anzahl an Bauteilen notwendig. Gleichzeitig wird ein hoher Wirkungsgrad erzielt.The vehicle brake according to the invention has the advantage of a smaller overall length. Besides, only a minor one Number of components necessary. At the same time, a high efficiency achieved.
- 11
- Bremskolbenbrake pistons
- 22
- Gewindemutterthreaded nut
- 33
- Federelementspring element
- 44
- Mitnahmeelementdriving element
- 55
- Axiallagerthrust
- 66
- Antriebswelledrive shaft
- 77
- Wälzlagerroller bearing
- 88th
- Antriebsrampedriving ramp
- 99
- Druckfedercompression spring
- 1010
- Wälzkörperrolling elements
- 1111
- Abtriebsrampeoutput ramp
- 1212
- Federkäfigspring cage
- 1313
- elektromechanischer Aktuatorelectromechanical actuator
- 1414
- Bremsgehäusebrake housing
- 1515
- Bremsbelagbrake lining
- 15'15 '
- Bremsbelagbrake lining
- 1616
- KolbendichtringPiston sealing ring
- 1717
- Spindelspindle
- 1818
- hydraulischer Betriebsdruckraumhydraulic Working pressure chamber
- 1919
- zweistufiges Getriebetwo-step transmission
- 2020
- Bremszylinderbrake cylinder
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006033333A DE102006033333A1 (en) | 2006-02-10 | 2006-07-19 | Hydraulic brake for vehicle with integral electromechanical parking brake has a drive element to compensate for brake lining wear |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006006459 | 2006-02-10 | ||
DE102006006459.3 | 2006-02-10 | ||
DE102006033333A DE102006033333A1 (en) | 2006-02-10 | 2006-07-19 | Hydraulic brake for vehicle with integral electromechanical parking brake has a drive element to compensate for brake lining wear |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006033333A1 true DE102006033333A1 (en) | 2007-08-16 |
Family
ID=38266090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006033333A Withdrawn DE102006033333A1 (en) | 2006-02-10 | 2006-07-19 | Hydraulic brake for vehicle with integral electromechanical parking brake has a drive element to compensate for brake lining wear |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006033333A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009109210A1 (en) * | 2008-03-03 | 2009-09-11 | Lucas Automotive Gmbh | Procedure for actuating a hydraulic parking brake |
WO2015054935A1 (en) * | 2013-10-15 | 2015-04-23 | Beijingwest Industries Co., Ltd. | Brake caliper piston actuation device |
EP3260339A1 (en) * | 2016-06-20 | 2017-12-27 | Haldex Brake Products Aktiebolag | Disc brake actuator for a vehicle |
CN108317186A (en) * | 2018-01-26 | 2018-07-24 | 浙江师范大学 | A kind of electric mechanical brake-by-wire device |
DE102010008927B4 (en) | 2010-02-23 | 2019-10-24 | Lucas Automotive Gmbh | Vehicle brake with spindle / nut arrangement |
DE102008042778B4 (en) | 2008-10-13 | 2020-01-23 | Robert Bosch Gmbh | Controllable electromechanical device for determining a piston in a cylinder and vehicle brake system equipped therewith |
DE112018004232B4 (en) | 2017-09-29 | 2022-03-31 | Hitachi Astemo, Ltd. | Electric disc brake |
CN117104205A (en) * | 2023-09-18 | 2023-11-24 | 苏州坐标系智能科技有限公司 | EMB brake assembly and braking system thereof |
CN117104205B (en) * | 2023-09-18 | 2024-06-11 | 苏州坐标系智能科技有限公司 | EMB brake assembly and braking system thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8900272U1 (en) * | 1988-06-14 | 1989-03-02 | Ptacnik, Michael, 8051 Zolling, De | |
EP0396231A1 (en) * | 1989-04-25 | 1990-11-07 | General Motors France | Disc brake caliper assembly |
WO1999054637A1 (en) * | 1998-04-22 | 1999-10-28 | Continental Teves Ag & Co. Ohg | Actuator for a motor vehicle brake system |
EP1054180A2 (en) * | 1999-05-14 | 2000-11-22 | Continental Teves AG & Co. oHG | Disc brake including parking brake option |
-
2006
- 2006-07-19 DE DE102006033333A patent/DE102006033333A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8900272U1 (en) * | 1988-06-14 | 1989-03-02 | Ptacnik, Michael, 8051 Zolling, De | |
EP0396231A1 (en) * | 1989-04-25 | 1990-11-07 | General Motors France | Disc brake caliper assembly |
WO1999054637A1 (en) * | 1998-04-22 | 1999-10-28 | Continental Teves Ag & Co. Ohg | Actuator for a motor vehicle brake system |
EP1054180A2 (en) * | 1999-05-14 | 2000-11-22 | Continental Teves AG & Co. oHG | Disc brake including parking brake option |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8448756B2 (en) | 2008-03-03 | 2013-05-28 | Lucas Automotive Gmbh | Procedure for actuating a hydraulic parking brake |
WO2009109210A1 (en) * | 2008-03-03 | 2009-09-11 | Lucas Automotive Gmbh | Procedure for actuating a hydraulic parking brake |
DE102008042778B4 (en) | 2008-10-13 | 2020-01-23 | Robert Bosch Gmbh | Controllable electromechanical device for determining a piston in a cylinder and vehicle brake system equipped therewith |
DE102010008927B4 (en) | 2010-02-23 | 2019-10-24 | Lucas Automotive Gmbh | Vehicle brake with spindle / nut arrangement |
WO2015054935A1 (en) * | 2013-10-15 | 2015-04-23 | Beijingwest Industries Co., Ltd. | Brake caliper piston actuation device |
US9482298B2 (en) | 2013-10-15 | 2016-11-01 | Beijingwest Industries, Co., Ltd. | Brake caliper piston actuation device |
EP3260339A1 (en) * | 2016-06-20 | 2017-12-27 | Haldex Brake Products Aktiebolag | Disc brake actuator for a vehicle |
WO2017220384A3 (en) * | 2016-06-20 | 2018-04-05 | Haldex Brake Products Aktiebolag | Disc brake actuator for a vehicle |
WO2017220384A2 (en) | 2016-06-20 | 2017-12-28 | Haldex Brake Products Aktiebolag | Disc brake actuator for a vehicle |
US10843674B2 (en) | 2016-06-20 | 2020-11-24 | Haldex Brake Products Aktiebolag | Disc brake actuator for a vehicle |
EP4019349A1 (en) | 2016-06-20 | 2022-06-29 | Haldex Brake Products Aktiebolag | Disc brake actuator for a vehicle |
DE112018004232B4 (en) | 2017-09-29 | 2022-03-31 | Hitachi Astemo, Ltd. | Electric disc brake |
US11313422B2 (en) | 2017-09-29 | 2022-04-26 | Hitachi Astemo, Ltd. | Electric disc brake |
CN108317186A (en) * | 2018-01-26 | 2018-07-24 | 浙江师范大学 | A kind of electric mechanical brake-by-wire device |
CN108317186B (en) * | 2018-01-26 | 2020-05-26 | 浙江师范大学 | Electronic mechanical brake-by-wire |
CN117104205A (en) * | 2023-09-18 | 2023-11-24 | 苏州坐标系智能科技有限公司 | EMB brake assembly and braking system thereof |
CN117104205B (en) * | 2023-09-18 | 2024-06-11 | 苏州坐标系智能科技有限公司 | EMB brake assembly and braking system thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R120 | Application withdrawn or ip right abandoned | ||
R120 | Application withdrawn or ip right abandoned |
Effective date: 20111202 |