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
  • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
  • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
  • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
  • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
  • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
  • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper 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
  • F16D65/14—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
  • F16D2121/14—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
  • 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
  • F16D2125/18—Mechanical mechanisms
  • F16D2125/44—Mechanical mechanisms transmitting rotation
  • F16D2125/46—Rotating members in mutual engagement
  • F16D2125/48—Rotating members in mutual engagement with parallel stationary axes, e.g. spur gears
• • 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
  • F16D2125/585—Flexible element, e.g. spring, other than the main force generating element arranged in parallel with a force-applying member
• • 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
  • F16D2125/64—Levers
  • F16D2125/645—Levers with variable leverage, e.g. movable fulcrum
• • 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
  • F16D2127/08—Self-amplifying or de-amplifying mechanisms
  • F16D2127/10—Self-amplifying or de-amplifying mechanisms having wedging elements

Definitions

• the present invention relates to an electromechanical brake according to the preamble of patent claim 1, which is provided in ⁇ special, but not exclusive, for use in vehicles.
• Electromechanical brakes only differ in the spread of the field of motor vehicles far ver ⁇ hydraulic or pneumatic brakes characterized in that the brake operating force is not hydraulic or pneuma ⁇ table, but is generated by electromechanical means.
• Electromechanical motor vehicle brakes of the first generation tried to produce the necessary, significant brake actuation force by means of an electric motor to each wheel brake, which was usually followed by a reduction gear, so that the electric motor is not too large and thus too heavy.
• Such solutions Lö ⁇ are so far never gone into production.
• this object is achieved by an operatively connected to the electric actuator coupled reversible force accumulator which acts as together with a force transmission means that, for a taking place by means of the actuator betae ⁇ account the brake stored in the power storage power with increasing actuation of the actuator successively released in the power transmission device and converted by this into an actuation torque is that is indirectly or directly applicable transmitted to the friction lining, wherein the supply ⁇ Actuate the moment with increasing actuation of the actuator in a predetermined manner increases, and that a through d for a release of the brake en friction lining on the power transmission device retroactive, braking inherent restoring force recharges the power storage again.
• the present invention is based on the idea that Need Beer ⁇ preferential brake force or the required Bremsbet2011i- To cover moment of inertia substantially with the force stored in the force memory and to let the electric actuator only a small proportion steer compared with the required brake actuation force or the required brake actuation torque.
• "operatively coupled to the electric actuator reversible energy storage” is to be understood that automatically upon actuation of the electric actuator and the energy storage a force corresponding to the extent of actuation of the actuator to the power transmission device.
• the force transmission device thus ensures that, despite substantially the same input force, applied by the interaction of the Kraftspei ⁇ chers with the electric actuator, the transmitted from the power transmission device on the friction lining réellebe ⁇ actuating torque increases with increasing actuation of the actuator without the electric Actuator must increase its operating force significantly.
• the "rising in a predetermined manner actuating torque" means that you can specify by a corresponding design of the power transmission device a certain, desired course of the Nathansbetuschistus, such a course can be linearly increasing, but it can also be progressive or degressive.
• each brake power supply one of the Actuate the ⁇ when actuated, opposing force builds up, the Inventions according to is used to recharge the energy storage when releasing the brake, so that in the energy storage power is available for a new braking operation.
• the braking-inherent restoring force results from elastic deformation of the brake components involved in braking, e.g. Compression of the friction lining, expansion of a brake caliper in the case of an electromechanical brake in saddle design etc.
• the electromechanical brake itself behaves like a spring, which is tensioned when the brake is actuated and released when the brake is released. wherein the relaxation process is used to recharge the energy storage.
• the increase in the actuating torque predetermined by means of the variable lever arm of the force transmission device via the actuating travel of the actuator preferably compensates at least approximately for the braking-inherent restoring force increasing with the actuating travel.
• the electric actuator can therefore be designed easily and with a small size.
• the predetermined increase in the loading ⁇ foundedungsmoments is selected so that the rising of the actuation bremseninpitinpite restoring force is under-compensated, which means that the electric actuator voted a be ⁇ force component in the operating direction needs to be heading to the to achieve desired braking effect.
• Falls at a thus designed electromechanical brake actuator of the e lectric from the brake open state falls forcibly ih ⁇ ren unconfirmed back.
• Other exemplary embodiments are designed such that the braking-inherent restoring force increasing with the actuating travel is overcompensated, which means in normal braking operation that the electric actuator has a certain amount of force counter to that
• Brake actuation direction must be controlled so that in total (only) the desired braking effect is achieved. If the electric actuator fails in such an exemplary embodiment, the electromechanical brake automatically assumes a closed, ie braking state. Such an interpretation is written for specific applications required by law ⁇ , eg for truck brakes.
• the force transmission device is preferably a transmission with a variable lever arm, ie with a lever arm which becomes larger with increasing actuating travel of the actuator.
• a transmission with a variable lever arm ie with a lever arm which becomes larger with increasing actuating travel of the actuator.
• Any type of transmission which the aforementioned requirement ⁇ he filled, can be employed.
• springs that can be used individually or as a spring pack.
• Such springs are already showing by itself (caused for example by its special geo ⁇ metry) the desired behavior of a rising with increasing betae ⁇ t Trentsweg operating torque.
• the electromechanical brake according to the invention is a floating-type disc brake for a motor vehicle.
• Figure 1 is a diagram of an electromechanical brake according to the invention, designed as a floating-blade disc brake for a motor vehicle, and
• the brake 10 has a rotatable brake disk 12 which in the normal operating state of the brake fixed to the wheel of a not shown here vehicle is connected.
• An arrow D indicates the main direction of rotation of the brake disk 12 during operation, ie the direction of rotation when moving forward.
• the brake disc 12 is covered by a floating caliper 14, the disc parallel to the not shown rotational axis of the brake ⁇ 12 is slidably attached to an only indicated here brake carrier 16, which is connected in the installed state of the brake 10 with a vehicle-fixed component, usually measured using a Part of a suspension.
• a first friction lining 18 by means of a first lining carrier plate 20, with which the friction lining 18 is fixedly connected, guided so that it can be moved to the brake disc 12 and away from it.
• the carrier plate by means of an associated lining ⁇ 24 is attached to the floating caliper fourteenth
• the first pin 32 is connected via its sleeve 34 in contact with the one side of a displaceably guided piston 40, on the other side of a compression spring 42 acts, which is at least in the initial state of the brake 10 shown in Figure 1 in a compressed state.
• the second pin 36 is in contact with an actuator via its sleeve 38.
• wedge 44 which is relative to the first friction lining 18, more precisely its lining carrier plate 20, parallel to the brake disc 12 slidably mounted.
• the actuating wedge 44 is supported in a likewise displaceably mounted manner at a wedge angle ⁇ on an abutment 46, which is attached to the floating caliper 14.
• the force of the spring 42 provides the largest part of the respectively required actuating torque, while the electric actuator 26 only has to supply a small part of the required actuating torque.
• the 42 serving as energy storage Fe ⁇ the 42 is designed so that it at maximum power transmission of the power transmission device, in the present case, when the disk 30 has rotated from its initial position by 90 degrees, is completely or at least almost fully relaxed ,
• any other force transmission device can be used which provides a desired force transmission variable over the actuation path.
• the operation of the first friction pad 18 is not limited solution 44 used in the manner shown, an actuating wedge, son ⁇ countries it may instead be present other means for actuating the or of the friction linings.
• the power transmission device can act directly on a friction lining.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=37309847

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (14)

Family Cites Families (12)

• 2005
  • 2005-10-12 DE DE102005048884A patent/DE102005048884B3/de not_active Expired - Fee Related
• 2006
  • 2006-09-06 US US12/089,869 patent/US8069962B1/en not_active Expired - Fee Related
  • 2006-09-06 CN CN2006800457523A patent/CN101321966B/zh not_active Expired - Fee Related
  • 2006-09-06 WO PCT/EP2006/066083 patent/WO2007042358A1/de active Application Filing
  • 2006-09-06 EP EP06793283A patent/EP1952042A1/de not_active Withdrawn

Non-Patent Citations (1)

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