Organ-type electronic brake pedal device

Abstract

The present disclosure relates to an accordion electronic brake pedal apparatus that can allow a driver to operate a pedal pad in an accordion brake pedal manner by rotating the driver's foot or in a suspended brake pedal manner by pushing the driver's foot forward. The accordion electronic brake pedal apparatus is inoperable when the driver attempts to operate a pedal arm part close to a hinge pin of the pedal pad.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an organ-type electronic brake pedal apparatus, and more particularly, to an organ-type electronic brake pedal apparatus capable of eliminating the risk of misoperation when a driver attempts to operate a pedal pad. BACKGROUND

[0002] The statements in this section merely provide background information related to the present disclosure and can not constitute prior art.

[0003] Generally, brake pedal apparatuses of a vehicle can be classified into a suspended brake pedal suspended from an instrument panel and an organ-type brake pedal installed on a floor, according to an installation structure.

[0004] In the suspended brake pedal, since a rotation center of a pedal pad is located at a high level, a driver operates the brake pedal by pressing down a lower portion of the pedal pad or pushing forward the lower portion of the pad using a toe. Meanwhile, in the organ-type brake pedal, since the rotation center of the pedal pad is located at a low level, the driver operates the brake pedal by rotating a lower portion of the pedal pad forward.

[0005] Since the organ-type brake pedal apparatus is configured such that a pedal pad on which a driver's foot is placed has a large area and a movement trajectory of the pedal pad is similar to that of the driver's foot, an operation feeling of the brake pedal apparatus can be improved. Therefore, the organ-type brake pedal apparatus has an advantage of being more comfortable to operate than the suspended brake pedal apparatus.

[0006] However, we found that a driver who is accustomed to the suspended brake pedal, when operating the organ-type pedal pad, can press down a lower portion of the pedal pad provided with a rotation center and can also push forward the organ-type pedal pad. When either of the above-described ways is operated as the organ-type pedal pad is operated as the suspended pedal pad, there is a disadvantage of misoperation since the pedal pad does not move.

[0007] The details described as background are only intended to facilitate the understanding of the background of the present disclosure and should not be understood as a recognition of prior art by those skilled in the art. SUMMARY

[0008] The present disclosure provides an organ-type electronic brake pedal apparatus that allows a driver to operate a pedal pad in a manner that the driver's foot is rotated to operate the pedal pad as in the organ-type brake pedal or the driver's foot is pushed forward to operate the pedal pad as in the suspended brake pedal when the driver operates the pedal pad, but the pedal pad cannot be operated when the driver attempts to operate a portion of the pedal pad close to a hinge portion of the pedal pad as in the suspended brake pedal, thereby improving reliability of the driver's operation of the brake pedal and preventing misoperation of the brake pedal.

[0009] In one form of the present disclosure, an accordion electronic brake pedal apparatus includes a pedal housing fixedly installed in a space below a driver seat, a pedal pad coupled to the pedal housing at a lower end thereof by a hinge pin to be rotatable forward and backward, and including a pad surface operated by a driver's foot, and a high load spring module including a first end rotatably coupled to the pedal housing and a second end rotatably coupled to the pedal pad to implement a resistance force corresponding to a force applied to the pedal pad. In particular, the pad surface is spaced upward from the hinge pin, and only a portion of the pedal pad, in which the pad surface is disposed, protrudes from the pedal housing when the pedal pad is rotated backward about the hinge pin and protrudes from the pedal housing.

[0010] The accordion electronic brake pedal apparatus can further include a plurality of pedal sensors fixedly installed on the pedal housing and connected to the pedal pad to generate signals related to braking as the pedal pad is rotated.

[0011] In one form, the pedal pad can include a pad member including the pad surface and an opening through which the second end of the high load spring module is inserted and rotatably coupled to the pad member, and a linear pedal arm member extending from the pad member and coupled to the hinge pin at a lower end of the linear pedal arm member.

[0012] The sensor pin can be coupled to the pedal arm member at a position between the pad member and the hinge pin, and can be coupled to a sensor rod of the pedal sensor.

[0013] The opening of the pad member can be provided only at a front portion thereof into which the high load spring module is inserted, and the pad member can be closed at remaining areas thereof to prevent introduction of contaminants.

[0014] Upper and lower surfaces of the pad member can be formed to have the same circular arc shape as portions of a circle having a radius of rotation about the hinge pin, respectively.

[0015] The pad member can extend through a housing hole formed in the pedal housing to be inserted into or protrude from the pedal housing as the pedal pad is rotated, and the pedal arm member can be located within the pedal housing to block contact with the driver regardless of the rotation of the pedal pad.

[0016] The pedal pad can be configured such that a vertical length between an axis of the hinge pin and an upper end of the pedal arm member is greater than a vertical length of the pad member.

[0017] The rear surface of the pedal housing can include an upper inclined surface bent downward at a predetermined angle at the rear end of the upper surface of the pedal housing and in which a housing hole through which the pad member extends is formed, and a lower inclined surface inclined at a predetermined angle at the lower end of the upper inclined surface and connected to the bottom surface of the pedal housing, wherein the upper inclined surface is connected to the upper surface at an obtuse angle, and the lower inclined surface is connected to the upper inclined surface at an obtuse angle and to the bottom surface at an acute angle.

[0018] The pedal arm member can be connected to the pad member such that, when the pedal pad is rotated rearward with the pad member protruding from the pedal housing, the pedal arm member is inclined at the same angle as the angle of the lower inclined surface to be parallel to the lower inclined surface, and such that, when the pedal pad is rotated in a state in which the one end of the high-load spring module provided in the pad member does not interfere with the pad member, the pedal arm member forms an acute angle with the upper inclined surface.

[0019] The pedal arm member can be connected to the pad member at an angle of 45 degrees or less with respect to the upper inclined surface.

[0020] Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0021] For a better understanding of the present disclosure, various forms thereof will now be described, by way of example, with reference to the drawings, in which:

[0022] Figure 1 is an exploded perspective view of an accordion electronic brake pedal apparatus according to one form of the present disclosure;

[0023] Figure 2 is Figure 1 is a side sectional view of the pedal pad of

[0024] Figure 3 is Figure 1 is a side sectional view of the pedal pad of Figure 2 inserted into the pedal housing from the position shown;

[0025] Figure 4 is a perspective view of a pedal pad according to one form of the present disclosure;

[0026] Figure 5 is a side view of a pedal pad of one form of the present disclosure;

[0027] Figure 6 and Figure 7 are views showing a brake pedal apparatus operated by a driver in different operating manners in some forms of the present disclosure.

[0028] The drawings described herein are for purposes of illustration only and are not intended to limit the scope of the present disclosure in any way. DETAILED DESCRIPTION

[0029] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0030] The particular implementations of the exemplary forms of the present disclosure described herein are illustrative only and are not intended to limit the scope of the present disclosure in any way. The present disclosure can be implemented in numerous other forms without departing from the spirit or essential characteristics of the present disclosure. Thus, the present disclosure is not limited to the particular forms disclosed. Rather, the present disclosure is broadly applicable to all compatible forms and methods of implementing the present disclosure.

[0031] Reference will now be made in detail to various forms of the present disclosure, examples of which are illustrated in the accompanying drawings and described below in the detailed description of the present disclosure, wherein like reference numerals refer to like elements throughout the several views of the drawings. While the present disclosure will be described in conjunction with the exemplary forms, it will be understood that the present description is not intended to limit the present disclosure to those exemplary forms. On the contrary, the present disclosure is intended to cover all alternatives, modifications, and equivalents that can be included within the spirit and scope of the present disclosure as defined by the appended claims.

[0032] It will be understood that, although the terms “first,” “second,” etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a “first” element discussed below could be termed a “second” element without departing from the teachings of the present disclosure. Similarly, a second element could be termed a first element.

[0033] It will be understood that when an element is referred to as being “coupled” or “connected” to another element, it can be directly coupled or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being “directly coupled” or “directly connected” to another element, there are no intervening elements present. Other words used to describe the relationship between elements should be interpreted in the same way unless otherwise indicated.

[0034] The terminology used herein is for the purpose of describing particular forms only and is not intended to limit. As used in herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "having," and the like, when used herein, specify the presence of stated features, integers, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0035] Unless otherwise defined, all terms used in connection with the present disclosure, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which the present disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0036] The control unit (controller) according to an exemplary form of the present disclosure can be implemented by a non-volatile memory (not shown) configured to store an algorithm configured to control the operation of various components of the vehicle or data related to software instructions for running the algorithm, and a processor (not shown) configured to execute the operation to be described below using the data stored in the memory. Here, the memory and the processor can be implemented by different chips. Alternatively, the memory and the processor can be implemented by a single chip in which the memory and the processor are integrated with each other. The processor can include one or more processors.

[0037] Reference will now be made in detail to the exemplary forms of the present disclosure, examples of which are illustrated in the accompanying drawings. It is possible that, throughout the drawings, the same reference numerals will refer to the same or similar components.

[0038] Hereinafter, an accordion-type electronic brake pedal apparatus according to one form of the present disclosure will be described with reference to the accompanying drawings.

[0039] As Figures 1 to 5 shown, the accordion-type electronic brake pedal apparatus according to some forms of the present disclosure includes a pedal housing 100 fixedly installed on a floor in a space below a driver's seat, a pedal pad 300 having a pad surface 311 operated by a driver's foot, the lower end of which is coupled to the pedal housing 100 by a hinge pin 200 to be rotatable forward and backward, and a high-load spring module 400 rotatably coupled at both ends to the pedal housing 100 and the pedal pad 300 to implement a resistance force, i.e., a pedal force, corresponding to a depression force when the pedal pad 300 is operated.

[0040] The pedal housing 100 is formed in a hollow box shape to accommodate a high load spring module 400, a pedal sensor to be described later, etc. in an inner space thereof. A cover 110 is detachably coupled to both sides of the pedal housing 100.

[0041] The pad surface 311 of the pedal pad 300 is a structure spaced apart upward from the hinge pin 200. When the pedal pad 300 is rotated rearward about the hinge pin 200 and protrudes from the pedal housing 100, only a portion of the pad surface 311 of the pedal pad 300 protrudes from the pedal housing 100, so that the driver cannot step on the remaining area of the pedal pad 300 other than the pad surface 311.

[0042] The brake pedal apparatus according to another form of the present disclosure further includes a plurality of pedal sensors 500 fixedly installed in the pedal housing 100 and connected to the pedal pad 300 to generate a signal related to braking when the pedal pad 300 is rotated.

[0043] The pedal sensor 500 includes a sensor lever 510 rotatably coupled, and the sensor lever 510 is connected to a sensor pin 600 coupled to the pedal pad 300. When the pedal pad 300 is rotated with respect to the pedal housing 100, the sensor lever 510 is rotated by the sensor pin 600.

[0044] The sensor lever 510 is provided with a permanent magnet coupled thereto, and a printed circuit board (PCB) is provided in the pedal sensor 500 to be disposed to face the permanent magnet. The PCB is electrically connected to a power source such as a battery through a wire.

[0045] When the driver steps on and operates the pedal pad 300 with respect to the pedal housing 100, the sensor lever 510 coupled to the pedal pad 300 through the sensor pin 600 is rotated. As the sensor lever 510 is rotated, the position of the permanent magnet coupled to the sensor lever 510 is changed, and the pedal sensor 500 detects the operation (rotation) of the pedal pad 300 by the change in the magnetic field strength due to the change in the position of the permanent magnet, and generates a signal related to braking.

[0046] Although the pedal sensor 500 is a contact type pedal sensor connected to the pedal pad 300 through a mechanical structure, i.e., the sensor lever 510, the pedal sensor 500 can also be a non-contact type pedal sensor composed of only the permanent magnet and the PCB if necessary.

[0047] In another form, the pedal pad 300 includes a box-shaped pad part 310 provided with a pad surface 311 and an opening through which one end of the high-load spring module 400 is inserted to be rotatably coupled to the pedal pad 300, and a pedal arm part 320 extending at a predetermined angle from the pad part 310 and having a lower end coupled to the hinge pin 200, the pedal arm part 320 being a linear pedal arm part.

[0048] When viewed from the side, the pad part 310 and the pedal arm part 320 can be configured to have an L shape.

[0049] According to another form of the present disclosure, a sensor pin 600 is coupled to the pedal arm part 320 between the pad part 310 and the hinge pin 200 and to a sensor rod 510 of the pedal sensor 500.

[0050] Since the sensor pin 600 is coupled to the pedal arm part 320, the pedal sensor 500 can be disposed close to the pedal arm part 320, thereby reducing the overall size of the brake pedal apparatus.

[0051] The pad part 310 is configured to be open at a front part through which the high-load spring module 400 is inserted and to have the remaining area entirely closed to prevent contaminants from entering.

[0052] One end of the high-load spring module 400 is inserted into the pad part 310 and rotatably coupled to the pad part 310 through a spring pin 700, and the other end of the high-load spring module 400 is rotatably coupled to a front part of the pedal housing 100 through a spring protrusion 410.

[0053] The high-load spring module 400 is placed obliquely in a direction in which the pad part 310 moves.

[0054] In general, a brake pedal of a vehicle requires a high load for the purpose of distinguishing the brake pedal from an accelerator pedal and safety in operating the brake pedal. For this purpose, since the form of the present disclosure employs the high-load spring module 400 that implements a resistance force (i.e., a required pedal force) corresponding to a depression force, there is an advantage that a manufacturing cost can be reduced in that a low-capacity motor that can be used in a general foldable accelerator pedal apparatus can be employed.

[0055] The high-load spring module 400 can include two or more springs and two or more dampers that are generally connected in series to each other to implement a desired resistance force (a pedal force) corresponding to a depression force.

[0056] In the pedal pad 300, the lower end of the pedal arm part 320 is coupled to the hinge pin 200 to be rotatable forward and backward about the hinge pin 200, so that the pad part 310 spaced upward from the hinge pin 200 is inserted into the pedal housing 100 through the housing hole 120 formed in the pedal housing 100 when the pedal arm part 320 is rotated forward, and is protruded backward from the pedal housing 100 toward the driver when the pedal arm part 320 is rotated backward.

[0057] The upper surface 312 and the lower surface 313 of the pad part 310 are formed to have the same circular arc shape as that of a portion of a circle having a radius of rotation about the hinge pin 200, respectively. Accordingly, since a gap between the pad part 310 and the edge of the housing hole 120 formed in the pedal housing 100 is kept constant, there is an advantage of preventing introduction of contaminants to the greatest extent.

[0058] The pad part 310 is disposed through the housing hole 120 formed in the pedal housing 100 to be inserted into or protruded from the pedal housing 100 when the pedal pad 300 is rotated. Irrespective of the rotation of the pedal pad 300, the pedal arm part 320 is always located in the pedal housing 100 to avoid interference with the driver. The pedal pad 300 is configured such that a vertical length between the axis of the hinge pin 200 and the upper end of the linear pedal arm part 320 is greater than a vertical length of the pad part 310.

[0059] Accordingly, when the driver operates the pedal pad 300 using the driver's foot, the driver can only operate the pad surface 311 of the pad part 310 exposed from the pedal housing 100, and cannot operate the pedal arm part 320 because the pedal arm part 320 is located in the pedal housing 100 to prevent contact with the driver's foot, thereby preventing the driver from operating by mistake.

[0060] According to one form of the present disclosure, the rear surface 130 of the pedal housing 100 includes an upper inclined surface 131 inclined downward at a predetermined angle from the upper surface 140 and in which the housing hole 120 through which the pad part 310 passes is provided, and a lower inclined surface 132 inclined downward extending at a predetermined angle from the lower end of the upper inclined surface 131 and connected to the bottom surface 150 of the pedal housing 100.

[0061] The upper inclined surface 131 is connected to the upper surface 140 at an obtuse angle A1, and the lower inclined surface 132 is connected to the upper inclined surface 131 at an obtuse angle A2 and to the bottom surface 150 at an acute angle A3. Accordingly, since the lower inclined surface 132 of the pedal housing 100 is inclined forward, the driver can not only operate the pad part 310 by rotating the driver's foot but also operate the pad part 310 by pushing the driver's foot forward.

[0062] Further, the pedal arm part 320 is connected to the pad part 310 such that, when the pedal pad 300 is rotated backward so that the pad part 310 protrudes from the pedal housing 100 (a state shown in FIG. 14B), the pedal arm part 320 is inclined at the same angle as that of the lower inclined surface 132 of the pedal housing 100 to be parallel to the lower inclined surface 132, and such that the included angle A4 formed with the upper inclined surface 131 of the pedal housing 100 is an acute angle when the pedal pad 300 is rotated in a state in which one end of the high load spring module 400 provided in the pad part 310 does not interfere with the pad part 310. Figure 2 Further, the pedal arm part 320 is connected to the pad part 310 such that, when the pedal pad 300 is rotated backward so that the pad part 310 protrudes from the pedal housing 100 (a state shown in FIG. 14B), the pedal arm part 320 is inclined at the same angle as that of the lower inclined surface 132 of the pedal housing 100 to be parallel to the lower inclined surface 132, and such that the included angle A4 formed with the upper inclined surface 131 of the pedal housing 100 is an acute angle when the pedal pad 300 is rotated in a state in which one end of the high load spring module 400 provided in the pad part 310 does not interfere with the pad part 310.

[0063] Although the pedal arm part 320 can be connected to the pad part 310 at an angle at which the included angle A4 between the pedal arm part 320 and the upper inclined surface 131 is 45 degrees or less, the present disclosure is not limited thereto.

[0064] As the included angle A4 between the upper inclined surface 131 and the pedal arm part 320 increases, the distance by which the pedal arm part 320 moves forward toward the dashboard increases, and thus the inclination of the lower inclined surface 132 of the pedal housing 100 increases. Thus, since contact between the driver's foot and the lower inclined surface 132 is prevented when the pad part 310 is operated by the driver's foot being pushed forward, the concertina pedal pad can be operated in a hang-type brake pedal manner.

[0065] However, when the included angle A4 further increases to an obtuse angle, one end of the high load spring module 400 provided in the pad part 310 interferes with the pad part 310 when the pedal pad 300 is rotated, so that basic operation of the pedal pad 300 cannot be performed. Thus, the pad part 310 can be connected to the pedal arm part 320 at an angle at which the included angle A4 is 45 degrees or less.

[0066] As Figure 6 shown, the concertina brake pedal apparatus according to one form of the present disclosure can be configured to be operated in a concertina brake pedal manner by rotating (R11) the driver's foot forward in a state in which the driver places the foot 1 on the pad surface 311.

[0067] Further, the concertina brake pedal apparatus can be operated in a hang-type brake pedal manner by pushing (M11) the driver's foot forward in a state in which the driver places the foot 1 on the pad surface 311. Thus, it can be possible to allow the driver to reliably operate the pad, and it can be possible to prevent the driver from erroneously operating the pedal pad 300.

[0068] Since the lower inclined surface 132 of the pedal housing 100 is bent forward at the lower end of the upper inclined surface 131, in a state where the driver places the foot 1 on the pad surface 311, even if the driver pushes the pedal pad 300 forward with the foot, the driver's foot does not come into contact with the lower inclined surface 132. Therefore, since the driver's foot is allowed to move forward, the driver can push the concertina pedal pad 300 in a suspended brake pedal manner.

[0069] Meanwhile, even when the driver attempts to operate the pedal arm member 320 located below the pad surface, i.e., close to the hinge pin 200, with the tip of the foot to operate the concertina pedal pad 300 in a suspended brake pedal manner without operating the pad surface 311 with the foot, the driver's foot is prevented from coming into contact with the pedal arm member 320. Since the pedal pad 300 is prevented from being operated, there is an advantage in that erroneous operation of the pedal pad 300 is prevented.

[0070] As is apparent from the above description, the concertina electronic brake pedal apparatus according to the present disclosure enables the driver to operate the pedal pad in a concertina brake pedal manner by rotating the driver's foot forward in a state where the foot is placed on the pad surface of the pedal pad, or to operate the pedal pad in a suspended brake pedal manner by pushing the driver's foot forward. Therefore, it is possible to improve the reliability of the driver's operation of the pedal pad, and it is possible to prevent inaccurate operation of the pedal pad.

[0071] In addition, even when the driver attempts to operate the pedal arm member close to the hinge pin of the pedal pad in a suspended brake pedal manner while operating the concertina pedal pad, the pedal arm member is blocked by the pedal housing and cannot be operated. Therefore, there is an advantage in that it is possible to prevent operation of the pedal pad, thereby eliminating the risk of erroneous operation of the pedal pad.

[0072] Although an exemplary form of the present disclosure has been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the present disclosure.

Claims

1. An accordion-type electronic brake pedal apparatus comprising: a pedal housing fixedly installed in a space below a driver's seat; a pedal pad, a lower end of which is coupled to the pedal housing by a hinge pin so that the pedal pad is rotatable forward and backward, and the pedal pad includes a pad surface which is operated by a driver; and a spring module, a first end of which is rotatably coupled to the pedal housing and a second end of which is rotatably coupled to the pedal pad, the spring module implementing a resistance force corresponding to a force applied to the pedal pad, wherein the pad surface is spaced apart upward from the hinge pin, and wherein the pedal pad includes: a pad member including a pad surface and an opening through which the second end of the spring module is inserted and rotatably coupled to the pad member; and a linear pedal arm member extending from the pad member and a lower end of which is coupled to the hinge pin. a plurality of pedal sensors fixedly installed on the pedal housing and connected to the pedal pad, the plurality of pedal sensors generating signals related to braking when the pedal pad is rotated.

2. The concertina electronic brake pedal apparatus of claim 1, further comprising: 3.The accordion-type electronic brake pedal apparatus of claim 2, wherein a sensor pin is coupled to the linear pedal arm member at a position between the pad member and the hinge pin, and the sensor pin is coupled to a sensor rod of the plurality of pedal sensors. 4.The accordion-type electronic brake pedal apparatus of claim 1, wherein the opening of the pad member is provided only at a front portion thereof, and the pad member is closed at a remaining area thereof to prevent introduction of contaminants. 5.The accordion-type electronic brake pedal apparatus of claim 1, wherein upper and lower surfaces of the pad member are formed to have the same circular arc shapes as portions of a circle having radii rotating around the hinge pin, respectively. 6.The accordion-type electronic brake pedal apparatus of claim 1, wherein the pad member extends through a housing hole formed in the pedal housing to be inserted into or protrude from the pedal housing when the pedal pad is rotated, and the linear pedal arm member is located within the pedal housing to block contact with the driver regardless of rotation of the pedal pad. 7.The accordion-type electronic brake pedal apparatus of claim 1, wherein the pedal pad is configured such that a vertical length between an axis of the hinge pin and an upper end of the linear pedal arm member is greater than a vertical length of the pad member. 8.The accordion-type electronic brake pedal apparatus of claim 1, wherein a rear surface of the pedal housing includes: an upper inclined surface bent downward at a predetermined angle at a rear end of an upper surface of the pedal housing and in which a housing hole through which the pad member extends is formed; and a lower inclined surface inclined at a predetermined angle at a lower end of the upper inclined surface and connected to a bottom surface of the pedal housing. ​ wherein the upper inclined surface is connected to an upper surface of the pedal housing at an obtuse angle, and the lower inclined surface is connected to the upper inclined surface at an obtuse angle and connected to the bottom surface at an acute angle. 9.The concertina electronic brake pedal apparatus of claim 8, wherein, the linear pedal arm member is connected to the pad member, when the pedal pad is rotated backward while the pad member protrudes from the pedal housing, the linear pedal arm member is inclined at the same angle as that of the lower inclined surface to be parallel to the lower inclined surface, and the linear pedal arm member is configured to form an acute angle with the upper inclined surface when the pedal pad is rotated in a state that the second end of the spring module provided in the pad member does not interfere with the pad member. 10.The concertina electronic brake pedal apparatus of claim 9, wherein, the linear pedal arm member is connected to the pad member at an angle of 45 degrees or less with respect to the upper inclined surface.

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