KR20100031303A - Automobile electric motion brake - Google Patents

Automobile electric motion brake Download PDF

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Publication number
KR20100031303A
KR20100031303A KR1020080090324A KR20080090324A KR20100031303A KR 20100031303 A KR20100031303 A KR 20100031303A KR 1020080090324 A KR1020080090324 A KR 1020080090324A KR 20080090324 A KR20080090324 A KR 20080090324A KR 20100031303 A KR20100031303 A KR 20100031303A
Authority
KR
South Korea
Prior art keywords
piston
movable body
electric brake
rotating body
brake
Prior art date
Application number
KR1020080090324A
Other languages
Korean (ko)
Inventor
국창호
Original Assignee
현대자동차주식회사
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 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020080090324A priority Critical patent/KR20100031303A/en
Publication of KR20100031303A publication Critical patent/KR20100031303A/en

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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
    • F16D2121/18—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
    • F16D2125/20—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

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

Abstract

The present invention relates to an electric brake apparatus for an automobile, and more particularly, to an electric brake apparatus for an automobile that enables active control of a brake such as a hydraulic brake in an electric brake.

The present invention described above,

A piston for pushing the pad toward the disk to pressurize the disk;

A movable body installed on the piston so as to be movable in the disk pressing direction;

Elastic means installed between the piston and the movable body;

A rotating body screwed to the moving body to rotate;

It provides a motor vehicle brake device comprising a; driving means for providing a rotational force to the rotating body.

Description

Electric brake device for automobiles {Automobile Electric Motion Brake}

The present invention relates to an electric brake apparatus for an automobile, and more particularly, to an electric brake apparatus for an automobile that enables active control of a brake such as a hydraulic brake in an electric brake.

In general, a brake mounted on a vehicle is for decelerating, stopping, or maintaining a stopped state of a vehicle while driving, and braking is performed by converting kinetic energy into thermal energy by mechanical friction and releasing the frictional heat into the atmosphere.

Brake devices typically include a drum type hydraulic brake and a disc type hydraulic brake. The disc brake is a disk disc that rotates together with a wheel instead of a drum to strongly press the pads on both sides to obtain a braking force.

The brake device is composed of a brake pedal provided in the driver's seat and a brake provided on the wheels so as to interlock with the brake pedal.

In order to operate the brake according to the operation of the brake pedal, a hydraulic master cylinder or a pneumatic booster is used by connecting the hydraulic pipe and the pneumatic pipe.

In particular, when the master cylinder and the booster are connected to the brake by the hydraulic pipe and the pneumatic pipe, the configuration thereof becomes very complicated, and the electric brake device has been developed to simplify the configuration of the brake device.

Figure 1 is a schematic diagram showing the configuration of a conventional electric brake device briefly.

As shown in FIG. 1, a conventional electric brake apparatus includes a disk 2 that is rotated together with a wheel, a pad 1 that compresses the disk 2 from both sides, and the pad 1 is a disk 2; A piston 10 that is pushed toward the side, a movable body 11 installed on the piston 10 so as to be horizontally movable to apply an external force to the piston 10, and a rotating body 12 that is screwed and rotated with the movable body 11. ) And a motor 13 that provides a rotational force to the rotating body 12.

Here, the motor 13 is a bidirectional motor capable of forward and reverse rotation, and rotates the rotating body 12, and when the rotating body 12 is rotated, the moving body screwed to the rotating body 12 ( 11 is moved in a direction (horizontal direction in the drawing) that can apply a force to the piston (10).

At this time, the rotating body 12 is configured to rotate only in place, the shaft is formed in the outer circumferential surface is formed in the form of a shaft, the moving body 11 is formed with a through-hole having a screw thread in the center of the rotating body 12 )

Therefore, when the rotor 12 is rotated, the movable body 11 is moved in the longitudinal direction of the rotor 12 by screwing.

As such, the movable body 11 moving in the longitudinal direction of the rotating body 12 presses the piston 10, and the piston 10 receives an external force from the movable body 11 to receive the pad 1. Pushing stops the rotation of the disc 2 to brake.

However, the conventional electric brake device as described above has a problem in that, unlike hydraulic brakes, the force applied to the disk cannot be actively controlled, which adjusts the force acting on the brake according to the degree of stepping on the brake pedal. On the other hand, since the electric brake is braking by the force of the movable body by the rotational force of the motor, active control of the brake is impossible.

In addition, the conventional electric brake device has a problem that when the shock is applied to the rotating body or the motor from the pad or the piston side, the shock is transmitted as it is, premature damage is feared.

The present invention is to solve the problems described above, the object of the present invention is to enable to actively control the force applied to the brake pad in the electric brake device to prevent the deterioration of ride comfort due to sudden braking.

In addition, even if an impact is applied to the electric brake device, the shock absorption is made to improve durability.

The present invention to solve the above object,

A piston for pushing the pad toward the disk to pressurize the disk;

A movable body installed on the piston so as to be movable in the disk pressing direction;

Elastic means installed between the piston and the movable body;

A rotating body screwed to the moving body to rotate;

Drive means for providing a rotational force to the rotating body; It provides an electric brake device for a vehicle comprising a.

In addition, the reduction means for increasing the torque of the drive means is provided between the drive means and the rotating body.

In addition, the piston is formed with a receiving portion having a square cross section, the moving body is characterized in that the same shape as the cross-sectional shape of the receiving portion.

In addition, the piston is formed with a guide bar along the moving direction of the movable body, characterized in that the movable body is formed with a guide hole into which the guide bar is fitted.

In addition, the elastic member is characterized in that the coil spring is installed between the piston and the movable body.

In addition, the movable body is formed with a screw hole having a screw thread on the inner peripheral surface, characterized in that the rotating body is formed with a screw shaft fitted to the screw hole.

According to the present invention, an active control similar to stepping on the pedal of the hydraulic brake is possible in the electric brake device, so that the sudden stopping or the snarling of the vehicle by the sudden braking is remarkably reduced.

In addition, since the impact energy input from the disk through the wheel, through the pad, the piston is absorbed by the elastic means, the problem that the electric brake device is damaged by the impact is solved.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a cutaway perspective view showing a partially cut state of the electric brake apparatus according to the present invention, Figure 3 is a schematic diagram showing a configuration of the electric brake apparatus according to the invention briefly, Figure 4 is a configuration of a mobile body of one embodiment of the present invention 5 is a reference diagram showing an embodiment, Figure 5 is a schematic diagram showing the main portion showing a coupling structure according to an embodiment of the movable body, Figure 6 is an operational state diagram showing an operating state of the present invention.

First, the present invention will be described with reference to FIGS. 2 and 3, and the present invention relates to a brake device for a vehicle in which a vehicle is braked by pushing a disk 2 rotated together with a wheel to a pad 1. The piston 110 and the movable body 120 and the elastic means 130, the rotating body 140 and the drive means 150 is largely made.

The piston 110 is configured to push the pad 1 toward the disc 2 so that the disc 2 is pressurized, and the pad 1 toward the disc 2 from the outside of the pad 1. It is installed to push.

As shown in the piston 110, a receiving portion 111 is formed to accommodate a portion of the movable body 120, the elastic means 130 and the rotating body 140.

Meanwhile, the movable body 120 moves along the direction in which the disk 2 is urged to the pad 1 on the piston 110. As illustrated, the movable body 120 of the piston 110 The external force is provided to the piston 110 while being moved in the accommodation part 111.

In addition, the elastic means 130 is installed between the piston 110 and the movable body 120, the elastic means 130 receives the external force from the movable body 120 and the force to the piston 110 In the configuration to provide, by holding the external force transmitted from the moving body 120 in the form of an elastic energy to the piston 110 can be braking actively.

That is, even if the movable body 120 provides a predetermined force toward the piston 110, the force is not transmitted as it is, but is stored by the elastic means 130 and is gradually transmitted, so that a sudden braking force does not occur during braking. Active control, such as slowly pressing the brake pedal on a hydraulic brake, is possible.

In addition, since the impact energy transmitted from the piston 110 toward the movable body 120 is also absorbed by the elastic means 130, the movable body 120, the rotating body 140 to be described later, the driving means 150, Damage to the reducer 160 or the like is prevented.

Here, the elastic means 130 may be various, in the present invention was implemented as a coil spring that can be easily installed on the screw shaft of the rotating body 140 to be described later, the elastic means 130 is necessarily It does not have to be limited to coil springs.

On the other hand, the rotating body 140 is screwed to the moving body 120 is rotated in place, it is rotated by the drive means 150 for providing a rotational force to the rotating body 140.

The driving means 150 may be a bi-directional motor capable of forward and reverse rotation, and the driving means 150 and the rotation to increase the torque transmitted from the driving means 150 to the rotating body 140. It is preferable that the speed reducer 160 is installed between the whole 140 as shown.

The speed reducer 160 is not an essential configuration, but when the driving means 150 having a large driving torque is not used, the speed reduction unit 160 can be appropriately changed in connection with the driving means 150. The speed reducer 160 corresponds to a well-known art, and thus a detailed description thereof will be omitted.

Here, when the rotating body 140 is rotated, the moving body 120 should not be rotated so that it can be moved along the longitudinal direction of the rotating body 140 in the receiving portion 111 of the piston 110. To this end, the accommodating part 111 is formed to form a square as shown in FIG. 2, and the movable body 120 is the same as the cross-sectional shape of the accommodating part 111 as shown in FIG. It can be made in a square shape.

That is, when the movable body 120 having the same angle is inserted into the accommodating part 111 having a square shape, the movable body 120 may not rotate on the accommodating part 111.

On the other hand, when the movable body 120 is made circular as shown in Figure 4 (b), the guide hole 121 is formed in the movable body 120, the piston 110 as shown in FIG. The guide bar 112 is formed along the moving direction of the movable body 120 so that the guide hole 121 is fitted into the guide bar 112 so that the movable body 120 does not rotate.

As described above, the movable body 120 moves along the longitudinal direction of the rotating body 140 inside the receiving portion 111 of the piston 110 without being rotated, as shown in FIG. 4. It is preferable that a screw hole 122 having a screw thread is formed as an inner circumferential surface, and a screw shaft 142 fitted to the screw hole 122 is formed in the rotating body 140.

Therefore, as shown in FIG. 6, when the rotor 140 is rotated by the driving means 150, the movable body 120 is moved toward the piston 110 along the longitudinal direction of the rotor 140. The elastic member between the piston 110 and the movable body 120 substantially presses the piston 110, thereby causing active braking.

As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to the specific Example described, and the person of ordinary skill in the art is not limited within the scope of this invention. Substitution and modification of the components are possible, which also belongs to the rights of the present invention.

1 is a schematic view showing a brief configuration of a conventional electric brake device;

Figure 2 is a perspective view showing a cutaway state of the electric brake device according to the invention,

3 is a schematic diagram schematically showing the configuration of an electric brake apparatus according to the present invention;

4 is a reference diagram showing an embodiment of a mobile body of one configuration of the present invention;

Figure 5 is a schematic view of the main part showing a coupling structure according to an embodiment of the movable body,

6 is an operating state diagram showing an operating state of the present invention.

<Description of the symbols for the main parts of the drawings>

1: pad 2: disc

110: piston 111: receiving portion

112: guide bar 120: moving object

130: elastic means 140: rotating body

150: driving means 160: reducer

Claims (6)

A piston (110) for pushing the pad (1) towards the disc (2) to press the disc (2); A movable body (120) installed on the piston (110) so as to be movable toward the pressing direction of the disk (2); Elastic means (130) installed between the piston (110) and the movable body (120); A rotating body 140 screwed to the moving body 120 to be rotated; Electric brake device for a vehicle comprising a; driving means for providing a rotational force to the rotating body (140) (150). 2. The electric brake apparatus for an automobile according to claim 1, wherein a speed reducer (160) is provided between the driving means (150) and the rotating body (140) to increase the torque of the driving means (150). According to claim 2, wherein the piston 110 is formed with an accommodating portion 111 having a square cross section, the movable body 120 is characterized in that the same shape as the cross-sectional shape of the accommodating portion 111. Electric brake device for automobiles. According to claim 2, The piston 110 is formed with a guide bar 112 along the moving direction of the moving body 120, the guide hole 121 is inserted into the moving body 120, the guide bar 112. Electric brake device for automobile, characterized in that formed. The electric brake apparatus for an automobile according to any one of claims 1 to 4, wherein the elastic member is a coil spring installed between the piston (110) and the movable body (120). According to claim 5, The movable body 120 is formed with a screw hole 122 having a screw thread on the inner circumferential surface, and the rotating body 140 is formed with a screw shaft 142 fitted to the screw hole 122 An electric brake device for an automobile, characterized in that.
KR1020080090324A 2008-09-12 2008-09-12 Automobile electric motion brake KR20100031303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080090324A KR20100031303A (en) 2008-09-12 2008-09-12 Automobile electric motion brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080090324A KR20100031303A (en) 2008-09-12 2008-09-12 Automobile electric motion brake

Publications (1)

Publication Number Publication Date
KR20100031303A true KR20100031303A (en) 2010-03-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080090324A KR20100031303A (en) 2008-09-12 2008-09-12 Automobile electric motion brake

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102812265A (en) * 2010-03-24 2012-12-05 丰田自动车株式会社 Disk brake device
CN110778711A (en) * 2019-10-31 2020-02-11 奇瑞商用车（安徽）有限公司 EPB actuating mechanism and assembling method thereof
CN110792703A (en) * 2018-10-25 2020-02-14 项炳海 Brake mechanism for automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102812265A (en) * 2010-03-24 2012-12-05 丰田自动车株式会社 Disk brake device
CN110792703A (en) * 2018-10-25 2020-02-14 项炳海 Brake mechanism for automobile
CN110792703B (en) * 2018-10-25 2021-02-12 项炳海 Brake mechanism for automobile
CN110778711A (en) * 2019-10-31 2020-02-11 奇瑞商用车（安徽）有限公司 EPB actuating mechanism and assembling method thereof

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