KR101661724B1

KR101661724B1 - Accelerating pedal apparatus

Info

Publication number: KR101661724B1
Application number: KR1020150043324A
Authority: KR
Inventors: 김형재; 진영두
Original assignee: 주식회사 아이엔테크놀로지
Priority date: 2015-03-27
Filing date: 2015-03-27
Publication date: 2016-10-11

Abstract

An accelerator pedal device of the present invention comprises: a pedal housing; a pedal structure fastened to the pedal housing about a pedal hinge as an axis of the pedal structure, and having a pedal pad at one end and a spring guide seat at the other end; a spring guide positioned to slide on the spring guide seat; a spring structure formed on the spring guide and returning the pedal structure; a friction bar having a friction portion at one end and a friction bar hinge at the other end, and interposed between the spring guide and a friction surface of the pedal housing to generate hysteresis, wherein the spring guide includes a friction bar hinge seating portion which receives the friction bar hinge.

Description

[0001] ACCELERATING PEDAL APPARATUS [0002]

Technical aspects of the present invention relate to an accelerator pedal device, and more particularly to an electronic accelerator pedal device for a vehicle.

An accelerator pedal device of a vehicle is a device for adjusting the intake amount of a mixer in a gasoline engine and adjusting the number of revolutions of the engine by adjusting the amount of fuel injected in a diesel engine. The smooth operation of the accelerator pedal apparatus plays an important role in safely running the vehicle. In recent years, when the driver operates the accelerator pedal apparatus in consideration of long-distance driving, etc., an acceleration pedal apparatus Development is required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic accelerator pedal apparatus capable of stably generating hysteresis.

According to an aspect of the present invention, there is provided an accelerator pedal apparatus comprising a pedal housing, a pedal structure fastened to the pedal housing via a pedal hinge, having a pedal pad at one end and a spring guide seat at the other end, A spring structure disposed on the spring guide to slide on the spring guide seat, a spring structure formed on the spring guide to return the pedal structure, a friction part at one end and a friction bar hinge at the other end, And a friction bar interposed between the friction surfaces of the pedal housing to generate hysteresis, wherein the spring seat includes a friction bar hinge seat for receiving the friction bar hinge.

The friction bar may be rotatably coupled to the friction bar hinge seating portion of the spring guide via the friction bar hinge.

In some embodiments, the spring guide includes a friction bar pressure portion, and the friction portion of the friction bar may be in frictional contact with the friction surface of the pedal housing by an external force transmitted from the friction bar pressure portion.

In some embodiments, the spring guide may include a slide hook configured to cover at least a portion of the spring guide seat of the pedal structure.

The accelerator pedal device may be a pendant type.

In some embodiments, the accelerator pedal device may further include a sensor portion mounted on a side portion of the pedal housing to sense a rotation angle of the pedal structure.

According to another aspect of the present invention, there is provided an accelerator pedal device including a pedal structure, which is coupled to the pedal housing via a pedal hinge, has a pedal pad, a pedal pad, A spring structure disposed on the spring guide seating part, a spring structure formed on the spring guide to return the pedal structure, a friction part at one end and a friction bar hinge at the other end, And a friction bar interposed between the friction surfaces of the pedal housing to generate a hysteresis, the spring seating portion including a friction bar hinge seating portion receiving the friction bar hinge.

The accelerator pedal device may be of the organ type.

The accelerator pedal device according to the technical idea of the present invention is hinged to the spring guide and the friction bar so that the friction bar is also slid together with the spring guide so as to more organically respond to the rotational movement of the pedal structure.

Further, when the spring guide and the friction bar are hinged together, not only the external force generated by the friction bar pressure portion of the spring guide but also the external force generated by the friction bar hinge seat portion is transmitted to the friction portion of the friction bar or the friction surface of the pedal housing So that a more excellent friction contact can be generated.

Thus, the accelerator pedal device can more effectively and stably generate the hysteresis.

1 is a cross-sectional view of an accelerator pedal device according to an embodiment of the present invention.
2 is an enlarged view of a region A in Fig.
3 is an exploded perspective view of the accelerator pedal device.
4 is a perspective view illustrating a spring guide and a friction bar provided in the accelerator pedal apparatus according to an embodiment of the present invention.
5 and 6 are diagrams for explaining the operation of the accelerator pedal device according to the embodiment of the present invention, FIG. 5 is a sectional view showing a partial area of the accelerator pedal device, FIG. 6 is a cross- Fig.
7 to 9 are views for explaining a spring guide that can be provided in the accelerator pedal device according to another embodiment of the present invention, FIG. 7 is an exploded perspective view of a spring guide and a friction bar, Fig. 9 is a front view of an accelerator pedal device to which a spring guide is coupled. Fig.
10 is a sectional view exemplarily showing an accelerator pedal device according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings, and a duplicate description thereof will be omitted.

Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The present invention is not limited to the following embodiments. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

Although the terms first, second, etc. are used herein to describe various elements, regions, layers, regions and / or elements, these elements, components, regions, layers, regions and / It should not be limited by. These terms do not imply any particular order, top, bottom, or top row, and are used only to distinguish one member, region, region, or element from another member, region, region, or element. Thus, a first member, region, region, or element described below may refer to a second member, region, region, or element without departing from the teachings of the present invention. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the inventive concept belongs, including technical terms and scientific terms. In addition, commonly used, predefined terms are to be interpreted as having a meaning consistent with what they mean in the context of the relevant art, and unless otherwise expressly defined, have an overly formal meaning It will be understood that it will not be interpreted.

If certain embodiments are otherwise feasible, the particular process sequence may be performed differently from the sequence described. For example, two processes that are described in succession may be performed substantially concurrently, or may be performed in the reverse order to that described.

In the accompanying drawings, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, embodiments of the present invention should not be construed as limited to any particular shape of the regions shown herein, but should include variations in shape resulting from, for example, manufacturing processes.

1 is a cross-sectional view of an accelerator pedal device 100 according to an embodiment of the present invention. 2 is an enlarged view of a region A in Fig. Fig. 3 is an exploded perspective view of the accelerator pedal device 100. Fig.

The accelerator pedal apparatus 100 is not limited to the illustrated embodiment, and may have various types depending on the mounting structure. For example, the accelerator pedal apparatus 100 may be a pendant type suspended from a dash panel (not shown) of a vehicle, or an organ type installed in a floor panel (not shown) organ type). In the present embodiment, the pendant type accelerator pedal apparatus 100 will be described as an example.

1 to 3, the accelerator pedal apparatus 100 may include a pedal housing 110, a pedal structure 120, a spring guide 130, a friction bar 140, and a spring structure 150 .

The pedal housing 110 forms the appearance of the accelerator pedal apparatus 100 and may serve to mount the accelerator pedal apparatus 100 on the dash panel of the vehicle. The pedal housing 110 may also protect the components of the accelerator pedal apparatus 100, such as the spring guide 130, the friction bar 140, and the spring structure 150 .

A pedal bushing 120B, a spring guide 130, a friction bar 140, and a spring structure 150 are coupled to the pedal housing 110. The pedal structure 120, the pedal bushing 120B, the spring guide 130, And then closed by the pedal housing cover 110C. At this time, a large screw 180L may serve to fasten the pedal housing 110 and the pedal housing cover 110C.

The pedal structure 120 may include a pedal pad 122, a pedal arm 124, a pedal hinge 126, and a spring guide seat 128 (see FIG. 2).

The pedal structure 120 is hinged to the pedal housing 110 and can be rotated about the pedal hinge 126 when an external force is applied to the pedal pad 122 by the operation of the driver. In some embodiments, the pedal structure 120 may be hinged to the pedal housing 110 via the pedal bushing 120B as shown in FIG.

A pedal pad 122 is provided at one end of the pedal structure 120. The pedal pad 122 is spaced upward from the floor panel when the pedal housing 110 is fixed to the dash panel of the vehicle .

A spring guide seating part 128 may be provided at the other end of the pedal structure 120. The spring guide seating part 128 may be located on the other side of the pedal structure 120 on which the pedal pad 122 is formed and the pedal pad 122, the pedal arm 124, the pedal hinge 126 And the spring guide seat portion 128 may be integrally formed.

The spring guide 130 may be positioned on the spring guide seating portion 128 and may serve as an intermediary for transmitting an external force to the spring structure 150 to the pedal structure 120. The spring guide 130 is positioned to be slidable on the spring guide seating portion 128 and may apply pressure to the friction bar 140 in a direction in which the spring guide seating portion 128 slides.

The friction bar 140 may generate hysteresis by frictionally contacting the friction guide 110 with the friction surface 110F of the pedal housing 110 through the pressure applied to the friction bar 140 by sliding the spring guide seat 128. [

Here, the hysteresis means a pedal effort when the driver steps on the pedal pad 122 and a magnitude of the force applied to the driver's foot from the pedal pad 122 when the pedal pad 122 is released And the pedal pad 122. In this embodiment, the friction bar 140 and the spring structure 150 may be constituent elements related to the hysteresis.

That is, when the driver depresses the pedal pad 122, the friction bar 140 comes into contact with the friction surface 110F on the inside of the pedal housing 110 to cause friction, and accordingly, the driver's abdomen A force is required to overcome the frictional force of the friction bar 140 and the force to overcome the spring structure 150, so that a large pressing force is required.

On the contrary, if the pedal pad 122 that was stepped on is released, the magnitude of the force applied to the driver's foot from the pedal pad 122 by the frictional force of the friction bar 140 is larger than the magnitude of the force applied to the pedal pad 122 by the driver It is relatively smaller than the answer. Accordingly, hysteresis can be generated, thereby reducing the fatigue of the driver due to the operation of the pedal pad 122.

On the other hand, the hysteresis generated by the friction bar 140 in the above-described manner is not sufficient for the driver to precisely or consistently manipulate the pedal pad 122, that is, to accurately or consistently control acceleration or deceleration of the vehicle A spring guide 130 and a friction bar 140 are required to stably generate the hysteresis. The spring guide 130 and the friction bar 140 will be described in further detail with reference to FIGS. 4 to 6. FIG.

The spring structure 150 is interposed between the spring guide 130 and the inner upper surface 110U of the pedal housing 110 so that when the pedal pad 122 that the driver stepped on is placed on the pedal structure 120, Can provide a role to provide.

In some embodiments, the spring structure 150 may include one or more springs to provide a stable spring force.

For example, the spring structure 150 may include an outer spring 150a as shown in FIGS. 2 and 3 and an inner spring 150b having a smaller radius than the outer spring 150a.

A spring pad 150c may be additionally provided between the outer spring 150a and the inner spring 150b to prevent interference between the springs 150a and 150b.

The spring pad 150c may include a material capable of acting as a buffer means, such as, for example, a sponge or a rubber product.

In the present embodiment, the spring structure 150 is limited to the coil spring. However, the present invention is not limited to this, and the spring structure 150 may be a plate spring, an elastic foam, or the like that can efficiently return the pedal structure 120 It does not depend on kind.

The sleeve bushing 160 may serve to protect the pedal housing 110 when the accelerator pedal device 100 is mounted on the dash panel of the vehicle (not shown) 160 may be omitted in some cases.

The sensor unit 170 can be fastened to the pedal housing cover 110C through the small screw 180S.

The sensor unit 170 senses the rotation angle of the pedal structure 120 and outputs the sensed rotation angle to a controller (not shown). That is, the pedal structure 120 converts the external force applied by the driver to the pedal pad 122 into rotational motion, and the sensor unit 170 converts the rotational motion into an acceleration / deceleration signal, that is, an electrical signal of the vehicle can do.

When the driver depresses the pedal structure 120 to accelerate the vehicle, the pedal structure 120 rotates about the pedal hinge 124, which is the rotating shaft, and simultaneously the sensor lever (not shown) inside the sensor unit 170 And rotates about the pedal hinge 124 together.

When the pedal structure 120 and the sensor lever have the same axis and rotate together, the rotation axis of the pedal structure and the rotation axis of the sensor lever of the sensor unit are different from each other, and the sensor unit can not accurately detect the rotation angle of the pedal structure .

That is, since the pedal structure 120 and the rotation point of the sensor lever coincide with each other, the sensor unit 170 accurately senses the rotation angle of the pedal structure 120 and outputs the sensed rotation angle, The linearity can be improved.

4 is a perspective view illustrating a spring guide 130 and a friction bar 140 included in the accelerator pedal apparatus 100 according to an embodiment of the present invention. 5 and 6 are diagrams for explaining the operation of the accelerator pedal apparatus 100 according to the embodiment of the present invention. FIG. 5 is a sectional view showing a partial area of the accelerator pedal apparatus 100, Fig. 5 is an enlarged view of a region B in Fig. 5; Fig.

4 to 6, the same reference numerals as in Figs. 1 to 3 denote the same members, and a duplicate description thereof will be omitted for the sake of simplicity.

Referring to FIGS. 4 to 6, the friction guide bar 140 may be hinged to the spring guide 130. That is, the friction bar hinge 142 of the friction bar 140 can be fastened to the friction bar hinge seat 132 formed on the lower side of the spring guide 130. At this time, the friction bar 140 can rotate in a predetermined range around the friction bar hinge 142.

The frictional bar pressing portion 134 of the spring guide 130 rotates about the pedal hinge 126 about the pedal hinge 126 by the operation of the driver's pedal so that the spring guide 130 slides The pressure of the friction bar 140 can be applied. The friction portion 140F of the friction bar 140 and the friction surface 110F of the pedal housing 110 are brought into contact with each other by the pressure applied to the friction bar 140 and hysteresis can be generated.

When the spring guide 130 and the friction bar 140 are hinged together as in the present embodiment, the friction bar 140 is also slid together with the spring guide 130 so as to more organically move in the rotational movement of the pedal structure 120 It becomes possible to react.

When the spring guide 130 and the friction bar 140 are hinged to each other, the frictional portion 140F of the friction bar 140 or the friction surface 110F of the pedal housing 110 is provided with a friction bar 130F of the spring guide 130, An external force (arrow A2 in Fig. 6) generated by the friction bar hinge seating portion 132 as well as an external force (arrow A1 in Fig. 6) generated by the pressure portion 134 can be transmitted, .

Accordingly, the accelerator pedal apparatus 100 can more effectively and stably generate the hysteresis.

7 to 9 are views for explaining a spring guide 230 that may be included in the accelerator pedal apparatus 200 according to another embodiment of the present invention. 8 is an exploded perspective view of the pedal structure 220 and the spring guide 230 and FIG. 9 is a front view of the accelerator pedal device 200 to which the spring guide 230 is coupled.

The accelerator pedal apparatus 200 may have a structure similar to that of the accelerator pedal apparatus 100 described with reference to Figs. 1 to 6, except for the structure of the spring guide 230. That is, each of the pedal housing 210, the pedal structure 220, and the friction bar 240 is the same as the pedal housing 110, the pedal structure 120, and the friction bar 140 described with reference to Figs. And thus a detailed description thereof will be omitted.

Referring to FIG. 7, the spring guide 230 may include a friction bar hinge seating portion 232, a friction bar pressure portion 234, and a slide hook 236.

The frictional bar hinge seating part 232 and the slide hook 236 have been described as separate reference numerals in the present embodiment. However, as shown in FIG. 7, the frictional bar hinge seating part 232 and the slide hook 236 Or may be integrally formed.

The friction bar hinge seating portion 232 can be fastened to the friction bar hinge 242 of the friction bar 240 similar to that described with reference to Figs.

8 and 9, the spring guide 230 may be coupled to the spring guide seating portion 228 of the pedal structure 220. As shown in FIG. Specifically, the slide hook 236 of the spring guide 230 can be slid and fastened to the rail 228L formed to protrude from the spring guide seat 228. [

When the spring guide 230 has the slide hook 236 and is fastened to the spring guide seat 228, when the spring structure 250 is not operated normally and is not returned, the spring guide 230 is moved to the external force Can play a role that can be restored.

For example, when the driver depresses a pedal pad (not shown) to accelerate, the spring guide seat 228 moves along the first direction (X-axis direction in FIG. 9) (arrow A3) The spring structure 250 is also compressed in the first direction (X-axis direction) by the movement of the spring guide seating portion 228 (arrow A4).

On the other hand, when the driver releases his / her foot from the pedal pad (not shown) for deceleration, the spring guide seat 228 moves in the second direction (-X-axis direction) opposite to the first direction (Arrow A5), and the spring guide 230 is returned together with the spring structure 250 by the restoring force (arrow A6) along the second direction (-X axis direction) of the spring structure 250.

When the spring guide 230 has the slide hook 236 and is fastened to the spring guide seating portion 228 as in the present embodiment, the spring structure 250 is not normally operated, The spring guide seating portion 228 may be returned by the external force in the second direction (-X-axis direction) so that the spring guide 230 may return with the spring guide seat portion 228 do.

10 is a sectional view exemplarily showing an accelerator pedal device 300 according to another embodiment of the present invention.

Referring to FIG. 10, the accelerator pedal device 300 may be an organ type installed in a floor panel (not shown) of the vehicle.

The accelerator pedal device 300 includes a pedal housing 310 fixedly mounted on a floor panel under the driver's seat, a pedal pad 322 having one end hinged to the pedal housing 310 and rotationally operated by the driver's foot, A pedal arm 324 installed in the inner space 310a of the pedal arm 310 to be rotatable with respect to the pedal housing 310 via a pedal hinge 326, A spring guide 330 coupled to a spring guide seating portion 328 located at the other end of the pedal arm 324 and a spring guide 330 coupled to the pedal housing 310 A friction bar 340 installed to generate hysteresis and a spring structure 350 installed at both ends of the spring guide 330 and the inner surface of the pedal housing 310.

The accelerator pedal apparatus 300 may have a structure similar to that of the accelerator pedal apparatus 100 described with reference to Figs. 1 to 6, except that the accelerator pedal apparatus 300 is of the organ type. Each of the pedal housing 310, the spring guide 330, the friction bar 340 and the spring structure 350 includes the pedal housing 110, the spring guide 130, 0.0 > 140 < / RTI > and the spring structure 150.

Even when the accelerator pedal apparatus 300 is of the organ type as in the present embodiment, when the spring guide 330 and the friction bar 340 are hinge-engaged similarly to those described with reference to Figs. 1 to 6, The hysteresis can be generated stably and stably.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, This is possible.

100: Accelerator pedal device
110: Pedal housing
120: Pedal structure
122: Pedal pad
124: Pedal arm
126: Pedal hinge
128: spring guide seat part
130: spring guide
132: Friction bar hinge seat part
134: Friction bar pressure part
140: friction bar
142: Friction bar hinge
150: spring structure
150a: outer spring
150b: inner spring
150c: spring pad

Claims

A pedal housing,
A pedal structure fastened to the pedal housing with the pedal hinge as an axis and having a pedal pad at one end and a spring guide seat at the other end;
A spring guide positioned to slide on the spring guide seat,
A spring structure formed on the spring guide to return the pedal structure,
And a friction bar having a friction portion at one end and a friction bar hinge at the other end and interposed between the friction guides of the spring guide and the pedal housing to generate hysteresis,
Wherein the spring guide includes a friction bar hinge seating portion that receives the friction bar hinge.

The method according to claim 1,
Wherein the friction bar is rotatably coupled to the friction bar hinge seating portion of the spring guide via the friction bar hinge.

The method according to claim 1,
Wherein the spring guide includes a friction bar pressure portion and the friction portion of the friction bar is in frictional contact with the friction surface of the pedal housing by an external force transmitted from the friction bar pressure portion.

The method according to claim 1,
Wherein the spring guide includes a slide hook formed to cover at least a part of the spring guide seat portion of the pedal structure.

The method according to claim 1,
Wherein the accelerator pedal device is a pendant type.

The method according to claim 1,
Further comprising a sensor unit mounted on a side portion of the pedal housing to sense a rotation angle of the pedal structure.

A pedal housing,
A pedal structure that is coupled to the pedal housing with the pedal hinge as an axis and has one end connected to the pedal pad via a carrier and having a spring guide seating portion at the other end,
A spring guide positioned on the spring guide seat,
A spring structure formed on the spring guide to return the pedal structure,
And a friction bar having a friction portion at one end and a friction bar hinge at the other end and interposed between the friction guides of the spring guide and the pedal housing to generate hysteresis,
Wherein the spring guide seat portion includes a friction bar hinge seat portion that receives the friction bar hinge.

8. The method of claim 7,
Wherein the accelerator pedal device is an organ type.