KR101526730B1 - Pedal effort uniformity apparatus of brake pedal for vehicle - Google Patents

Pedal effort uniformity apparatus of brake pedal for vehicle Download PDF

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Publication number
KR101526730B1
KR101526730B1 KR1020130152932A KR20130152932A KR101526730B1 KR 101526730 B1 KR101526730 B1 KR 101526730B1 KR 1020130152932 A KR1020130152932 A KR 1020130152932A KR 20130152932 A KR20130152932 A KR 20130152932A KR 101526730 B1 KR101526730 B1 KR 101526730B1
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KR
South Korea
Prior art keywords
pedal arm
pedal
slot
spring
section
Prior art date
Application number
KR1020130152932A
Other languages
Korean (ko)
Inventor
민정선
송영석
Original Assignee
현대자동차주식회사
기아자동차주식회사
주식회사 동희산업
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Application filed by 현대자동차주식회사, 기아자동차주식회사, 주식회사 동희산업 filed Critical 현대자동차주식회사
Priority to KR1020130152932A priority Critical patent/KR101526730B1/en
Application granted granted Critical
Publication of KR101526730B1 publication Critical patent/KR101526730B1/en

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    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/06—Disposition of pedal
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Braking Elements And Transmission Devices (AREA)
  • Mechanical Control Devices (AREA)

Abstract

The present invention relates to a pedal effort uniformity apparatus of a brake pedal for a vehicle which improves returning properties in an initial state before controlling a pedal arm (30); always uniformly maintaining a pedal effort of the pedal arm (30) regardless of a control stroke of the pedal arm (30) in a common control section controlling the pedal arm (30) by stepping; and an end control section (a full stroke section).

Description

TECHNICAL FIELD [0001] The present invention relates to a brake pedal brake pedal,

The present invention relates to a force equalizing apparatus for a vehicle brake pedal. More particularly, the present invention relates to a force equalizing apparatus for a vehicle brake pedal, more particularly, The present invention relates to a force equalizing apparatus for a vehicle brake pedal capable of generating a force.

A conventional brake pedal apparatus is a pedal member 1 which is fixed to a vehicle body panel (dash panel) under a driver's seat as shown in Fig. 1. The brake pedal is a mechanism that is operated by a driver to generate a braking force. , A pedal arm (3) coupled to the pedal member (1) to be rotatable in an anteroposterior direction via a pedal hinge (2), and a spring bracket (4) coupled to the pedal member And a return spring 5 that is coupled to the pedal arm 3 to generate a pressing force when the pedal arm 3 is operated and applies a returning force to the pedal arm 3.

2, the spring force of the return spring 5 is increased in proportion to the stroke of the pedal arm 3, and the spring force of the return spring 5 is increased in proportion to the stroke of the pedal arm 3, So that there is a disadvantage that the driver's fatigue is increased in the commercial operation section in which the operation of the pedal is frequently performed.

In order to prevent this, when the spring force of the return spring 5 is reduced, the operability in the commercial operation section is improved, and the driver's fatigue due to the operation of the pedal can be reduced. If the return is delayed or severe, a complete return is not made, thereby causing a problem of deteriorating the brake performance.

In addition, when the spring force of the return spring 5 is increased, the pedal arm 3 smoothly advances and the pedal swings, thereby making it possible to eliminate noise. On the other hand, As the operability in the frequently operated commercial operation section becomes worse, there arises a problem of increasing the driver's fatigue due to the operation of the pedal.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

Korean Patent Publication No. 10-2007-0051488

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned disadvantages, and it is an object of the present invention to provide a pedal arm with a predetermined magnitude only at the time of initial operation of the pedal arm, In the frequent commercial operation section and the terminal operation section (full stroke section), the pedal arm pressure is always kept uniform regardless of the operation stroke of the pedal arm, thereby improving operability and greatly reducing the driver's fatigue due to the pedal operation. And an object of the present invention is to provide a force equalizing device for a brake pedal.

In order to accomplish the above object, the present invention provides a force equalizing apparatus for a vehicle brake pedal, comprising: a guide slot formed on a side surface of a pedal member; A pedal arm link having one end inserted into the guide slot and the other end rotatably coupled to the pedal arm; And a pedal arm link having one end connected to the pedal arm link and the other end connected to the pedal arm, wherein when the pedal arm is not operated, a returning force is provided to the pedal arm by the accumulated elastic force, And a pedal arm spring that provides a uniform reaction force to the pedal arm through a resilient deformation when the pedal arm moves along the guide slot.

Further comprising a slot bush installed to fit along the rim of the guide slot to prevent noise when one end of the pedal arm link moves along the guide slot; And the guide slot is formed by the slot bush.

Wherein the guide slot comprises: a first slot section in which the pedal arm is formed in an arc shape along a turning radius about a pedal hinge; And a second slot section connected to the first slot section and bent in a direction away from or closer to the pedal hinge.

And an engaging groove is formed along an outer circumferential surface of the slot bush so that the slot bush can be fitted and engaged with the pedal member.

A pedal arm link having a slot coupling protrusion to be inserted into the guide slot and a spring coupling protrusion coupled to one end of the pedal arm spring; A boss portion having a through hole formed at the other end of the pedal arm link; And a pedal arm protrusion provided on the pedal arm is engaged with the through hole of the boss unit.

The pedal arm spring is installed to be positioned below the pedal arm link; When the second slot section is bent in a direction away from the pedal hinge from a connection point with the first slot section, the pedal arm spring is a tension spring.

The pedal arm spring is installed to be positioned below the pedal arm link; And the pedal arm spring is a compression spring when the second slot section is bent in a direction approaching the pedal hinge from the connection point with the first slot section.

Further comprising: a roller bushing rotatably fitted to the slot coupling protrusion to prevent noise; And the roller bush is installed so as to be in contact with the guide slot.

According to the present invention, it is possible to improve the returnability of the pedal arm in the initial state before operating the pedal arm, thereby preventing the pedal from being shaken and improving the brake performance according to the operation of the pedal arm. The pedal operation force can be maintained at all times regardless of the operation stroke of the pedal arm in the commercial operation section and the terminal operation section (full stroke section) in which the pedal is stepped on and operated, There is an effect that the fatigue of the driver according to the operation can be greatly reduced.

1 is a view for explaining a conventional brake pedal device,
FIG. 2 is a graph showing the relationship between the return spring force and the leg load on the pedal stroke in the conventional brake pedal apparatus,
3 is a perspective view of a brake pedal for a vehicle to which the pedal effort equalizing apparatus according to the present invention is applied,
4 is an enlarged view of Fig. 3,
5 is a perspective view of a slot bush according to the present invention,
6 is a perspective view of a pedal arm link according to the present invention,
7 is a perspective view of a pedal arm according to the present invention,
8 is a view for explaining another embodiment of the pedal arm spring according to the present invention,
9 is a view for showing an initial state of the pedal arm, an initial operating state thereof, and an operating state of the pressure equalizing apparatus in the full stroke operating state,
FIG. 10 is a graphical diagram for explaining the correlation of the pedaling force against the pedal stroke in the vehicle brake pedal to which the pedal effort equalizing apparatus according to the present invention is applied.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus for equalizing a brake pedal of a vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

3 to 10, a pedal member 10 fixed to a vehicle body panel (dash panel) at the lower portion of the driver's seat; A pedal arm 30 rotatably coupled to the pedal member 10 via a pedal hinge 20 in an anteroposterior direction; A guide slot (40) formed on one side of the pedal member (10); A pedal arm link (50) having one end inserted into the guide slot (40) and the other end rotatably coupled to the pedal arm (30); And one end of the pedal arm 30 is coupled to the pedal arm link 30 and the other end of the pedal arm 30 is coupled to the pedal arm 30. When the pedal arm 30 is not operated, And provides a uniform reaction force to the pedal arm 30 through elastic deformation during operation of the pedal arm 30 in which the pedal arm link 50 moves along the guide slot 40 And a pedal arm spring (60).

The apparatus according to the present invention is installed to fit along the rim of the guide slot 40 and includes a slot bushing 70 for preventing noise when one end of the pedal arm link 50 moves along the guide slot 40 And the guide slot 40 is formed by the slot bushing 70. As shown in FIG.

In other words, a through hole (not shown) having the same shape as the guide slot is formed on one side surface of the pedal member 10, and a slot bush 70 is formed in the through hole of the pedal member 10 along the shape of the through hole And the inner space of the slot bush 70 serves as the guide slot 40. In this case,

An engaging groove 71 is formed on an outer circumferential surface of the slot bushing 70 so as to be engaged with the through hole of the pedal member 10 so that the slot bushing 70 is engaged with the through hole of the pedal member 10.

The slot bushing 70 supports the pedal arm link 50 and also induces smooth movement of the pedal arm link 50 and noise should not be generated when the pedal arm link 50 is moved. The slot bushes 70 may be formed of a low friction synthetic resin, but the present invention is not limited thereto.

The guide slot 40 includes a first slot section 41 having the circular arc shape of the pedal arm 30 along a radius of rotation about the pedal hinge 20; And a second slot section (42) connected to the first slot section (41) and bent in a direction away from or closer to the pedal hinge (20).

The pedal arm spring 60 is located below the pedal arm link 50 and has one end connected to the pedal arm link 50 and the other end connected to the pedal arm 30 do.

3 to 5, the second slot section 42 extends from the connection point with the first slot section 41 in a direction away from the pedal hinge 20, The pedal arm spring 60 is formed of a tension spring. If the pedal arm spring 60 has a bent structure, the second slot section 42 may be connected to the first slot section 41, as in the embodiment of FIG. It is preferable that the pedal arm spring 60 is composed of a compression spring if the pedal arm spring 60 is formed in a bent direction from the connection point toward the pedal hinge 20.

According to the present invention, the pedal arm link 50 is integrally formed with one side surface of one side of the pedal arm link 50 with a slot engaging protrusion 51 to be inserted into the guide slot 40, A boss portion 53 having a through hole 53a formed at the other end side surface of the pedal arm link 50, Is integrally protruded in the same direction as the spring engaging projection (52).

The pedal arm protrusion 31 provided on the pedal arm 30 is fitted and coupled to the through hole 53a of the boss 53 formed in the pedal arm link 50, 50 are rotatable about the boss 53 fitted to the pedal arm projection 31. [

The pedal arm 30 is integrally formed with a spring engagement protrusion 32 protruding in one direction and the other end (lower end) of the pedal arm spring 60 is engaged with the spring engagement protrusion 32 .

The present invention further includes a roller bushing 80 rotatably fitted in the slot coupling protrusion 51 of the pedal arm link 50. The roller bushing 80 includes the guide slot 40 So that noise can be prevented from being generated when the pedal arm 30 is operated.

Hereinafter, the operation of the embodiment of the present invention will be described.

9A is a state in which the pedal arm 30 is rotated to its maximum rear position with respect to the driver, that is, when the driver is in a state before the pedal arm 30 is depressed or when the pedal arm 30 is in a state of applying a force It is all in the initial state.

At this time, the pedal arm spring 60 (which is a tension spring) whose one end is hooked on the spring engaging projection 52 pulls the pedal arm link 50 downward (arrow P1) by the accumulated elastic force, The pedal arm 30 always has a force to rotate in the direction of the driver's back, that is, in the direction of returning (arrow R1), whereby the returnability of the pedal arm 30 can be improved, It is possible to further improve the braking performance of the pedal arm 30 according to the operation of the pedal arm 30.

9B is an initial operation state (arrow R2) in which the driver applies a force to the pedal arm 30 to rotate the pedal arm 30 forward, and the pedal arm 30 at this time is in an initial operation state (20).

Further, when the pedal arm 30 rotates, the pedal arm link 50 also rotates in the same direction.

9 (A), the roller bush 80 is positioned in the second slot section 44 of the guide slot 40 (M1 state in FIG. 5) 9B, the roller bush 80 moves upward as indicated by an arrow L1 (FIG. 5) to move the first slot section 41 and the second slot section 42 ) At the point of connection.

When the pedal arm 30 is changed from the initial state to the initial operating state as described above, the driver's feel through the pedal arm 30 increases as the length of the pedal arm spring 60 changes, It becomes possible to recognize the operation state of the pedal arm 30 by changing the pedaling force.

When the driver further depresses the pedal arm 30 in the initial operation state as shown in Fig. 9 (B), the pedal arm 30 passes through the commercial operation section (section in which the use frequently occurs during driving) (C) as shown in Fig.

9 (B), the roller bushing 80 is moved along the arc-shaped first slot section 41 having the same radius of rotation as that of the pedal arm 30 until the full stroke section as shown in FIG. 9 (C) The pedal arm link 50 and the pedal arm spring 60 move together with the pedal arm 30. At this time, the pedal arm spring 60 does not change in length, Can always maintain uniform pressure regardless of the operation stroke of the pedal arm 30 as shown in the graph diagram of Fig.

Therefore, it is possible to improve the operability in the commercial operation section and the full stroke section (terminal operation section) in which the vehicle is frequently used during driving, thereby greatly reducing the driver's fatigue due to the pedal operation.

As described above, according to the embodiment of the present invention, it is possible to improve the returnability of the pedal arm 30 by the accumulated elastic force of the pedal arm spring 60 in the initial state before operating the pedal arm 30, The pedal arm 30 can be prevented from being shaken and the brake performance can be improved according to the operation of the pedal arm 30.

Further, in the commercial operation section and the terminal operation section (full stroke section) in which the pedal arm 30 is operated by stepping on, the pedal arm 30 can be maintained at a constant pressure regardless of the operation stroke of the pedal arm 30 Thus, it is possible to improve the operability of the pedal, thereby greatly reducing the driver's fatigue due to the operation of the pedal.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10 - Pedal member 20 - Pedal hinge
30 - Pedal arm 40 - Guide slot
50 - pedal arm link 60 - pedal spring
70 - Slot Bush 80 - Roller Bush

Claims (8)

A guide slot formed on one side of the pedal member;
A pedal arm link having one end inserted into the guide slot and the other end rotatably coupled to the pedal arm;
Wherein the pedal arm is provided with one end connected to the pedal arm link and the other end connected to the pedal arm to provide a returning force to the pedal arm by the accumulated elastic force when the pedal arm is not operated, A pedal arm spring for providing a uniform reaction force to the pedal arm through a resilient deformation when the pedal arm moves along the pedal arm; And
And a slot bush installed along the rim of the guide slot to prevent noise when one end of the pedal arm link moves along the guide slot;
And the guide slot is formed by the slot bush. delete The method according to claim 1,
Wherein the guide slot comprises: a first slot section in which the pedal arm is formed in an arc shape along a turning radius about a pedal hinge; And
And a second slot section connected to the first slot section and bent in a direction away from or closer to the pedal hinge. The method according to claim 1,
Wherein an engaging groove is formed along an outer circumferential surface of the slot bush so that the slot bush can be fitted and engaged with the pedal member. The method according to claim 1,
A pedal arm link having a slot coupling protrusion to be inserted into the guide slot and a spring coupling protrusion coupled to one end of the pedal arm spring;
A boss portion having a through hole formed at the other end of the pedal arm link;
And a pedal arm projection provided on the pedal arm is engaged with the through hole of the boss portion so as to be engaged with the pedal arm projection. The method of claim 3,
The pedal arm spring is installed to be positioned below the pedal arm link;
Wherein when the second slot section is bent in a direction away from the pedal hinge from a point of connection with the first slot section, the pedal arm spring is a tension spring. The method of claim 3,
The pedal arm spring is installed to be positioned below the pedal arm link;
Wherein the pedal arm spring is a compression spring when the second slot section is bent in a direction from the connection point with the first slot section toward the pedal hinge. The method of claim 5,
Further comprising: a roller bushing rotatably fitted to the slot coupling protrusion to prevent noise;
And the roller bushes are installed to contact the guide slots.
KR1020130152932A 2013-12-10 2013-12-10 Pedal effort uniformity apparatus of brake pedal for vehicle KR101526730B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130152932A KR101526730B1 (en) 2013-12-10 2013-12-10 Pedal effort uniformity apparatus of brake pedal for vehicle

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KR1020130152932A KR101526730B1 (en) 2013-12-10 2013-12-10 Pedal effort uniformity apparatus of brake pedal for vehicle

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160084559A (en) * 2015-01-05 2016-07-14 주식회사 동희산업 Accelerator pedal apparatus with variable pedal effort
KR102032187B1 (en) 2019-06-10 2019-10-15 강효준 Idling restriction device when the gear is neutral by brake holding
KR20200015192A (en) 2018-08-03 2020-02-12 주식회사 에스엠모터스 Apparatus for automatically holding a brake pedal
KR20200058093A (en) 2018-11-19 2020-05-27 주식회사 세찬테크 Apparatus for automatically holding a brake pedal
KR20200097084A (en) 2019-02-07 2020-08-18 강효준 Apparatus for automatically holding a brake pedal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05301565A (en) * 1992-04-27 1993-11-16 Toyota Motor Corp Pedal ratio varying brake pedal device
KR20010037161A (en) * 1999-10-14 2001-05-07 이계안 Brake operating apparatus in automobile
KR20110058456A (en) * 2009-11-26 2011-06-01 현대자동차주식회사 Break pedal unit with variable pedal ratio
KR20120057142A (en) * 2010-11-26 2012-06-05 현대자동차주식회사 Sensuous pedal for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05301565A (en) * 1992-04-27 1993-11-16 Toyota Motor Corp Pedal ratio varying brake pedal device
KR20010037161A (en) * 1999-10-14 2001-05-07 이계안 Brake operating apparatus in automobile
KR20110058456A (en) * 2009-11-26 2011-06-01 현대자동차주식회사 Break pedal unit with variable pedal ratio
KR20120057142A (en) * 2010-11-26 2012-06-05 현대자동차주식회사 Sensuous pedal for vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160084559A (en) * 2015-01-05 2016-07-14 주식회사 동희산업 Accelerator pedal apparatus with variable pedal effort
KR101649264B1 (en) 2015-01-05 2016-08-19 (주)동희산업 Accelerator pedal apparatus with variable pedal effort
KR20200015192A (en) 2018-08-03 2020-02-12 주식회사 에스엠모터스 Apparatus for automatically holding a brake pedal
KR20200058093A (en) 2018-11-19 2020-05-27 주식회사 세찬테크 Apparatus for automatically holding a brake pedal
KR20200097084A (en) 2019-02-07 2020-08-18 강효준 Apparatus for automatically holding a brake pedal
KR102032187B1 (en) 2019-06-10 2019-10-15 강효준 Idling restriction device when the gear is neutral by brake holding

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