Pedal simulator for vehicle

Abstract

A pedal simulator for a vehicle according to the present disclosure includes: a housing; a piston arranged to slidably move in the housing; and an elastic member configured to elastically support the piston inside the housing, and formed in a hollow shape, and compressed by pressurization of the piston. According to the present disclosure, a pedal simulator may eliminate a pedal return spring by elastically supporting an elastic member of a piston.

Description

Technical Field

[0001] Exemplary embodiments of the present disclosure relate to a pedal simulator for a vehicle, and more particularly, to a pedal simulator for a vehicle that can provide a braking feel. Background Art

[0002] Electromechanical brakes typically use hydraulic systems. However, the recent rise of brake-by-wire systems and autonomous vehicle-related technologies has necessitated the development of non-hydraulic braking systems.

[0003] The pedal simulator is a component mounted on an electromechanical brake or an electronic booster (eg, a vacuum-less electronic boost (VEB)) and provides the driver with a braking feel generated by a conventional mechanical (hydraulic) brake.

[0004] Conventional pedal simulators use a single or multiple springs and dampers to provide a braking feel similar to that of a mechanical booster, but there is a problem in that the number and shape complexity of components should be increased to achieve greater similarity to a mechanical booster.

[0005] The background technology of the present disclosure is disclosed in Korean Patent No. 10-2223847 (registered on March 8, 2021, titled "Pedal Simulator"). Utility Model Content

[0006] An object of the present disclosure is to provide a pedal simulator for a vehicle that can optimize the structure and simplify the shape, thereby improving the ease of assembly and productivity and reducing cost and weight.

[0007] Another object of the present disclosure is to provide a pedal simulator for a vehicle that is applicable regardless of the type and shape of a pedal.

[0008] According to one aspect of the present disclosure, a pedal simulator for a vehicle is provided, which may include: a housing; a piston arranged to be slidably movable in the housing; and an elastic member configured to elastically support the piston inside the housing, formed in a hollow shape, and compressed by pressurization of the piston.

[0009] The piston may include: a piston body positioned inside the housing and including a spherical body; a piston pressurizing component arranged on one side of the piston body and including a socket rotatably coupled to the spherical body; and a piston rod disposed on the other side of the piston body and having an elastic component mounted on the piston rod.

[0010] The piston rod includes an opening at one end thereof and may be formed in a hollow shape.

[0011] The first part of the elastic member may be accommodated inside the piston rod.

[0012] The housing may include: a hollow portion in which the piston is movably accommodated; a solid portion that is provided at one side of the hollow portion and inserted into the elastic member; and a guide that is formed at an outer side of the solid portion and communicates with the hollow portion, and into which the second member of the elastic member is inserted.

[0013] The piston body may be formed to have a larger diameter than the piston rod.

[0014] The housing may include a slit hole penetrating an outer peripheral surface thereof, and may further include a retainer passing through the slit hole to be coupled to the housing and interfere with the piston pressurizing part to prevent displacement of the piston.

[0015] The holder may be formed in a ring shape with one side thereof opened.

[0016] The piston may further include a magnet provided on an outer circumferential surface of the piston body and formed along a circumferential direction of the piston body.

[0017] The pedal simulator may further include a sensor provided on the housing and detecting a position of the magnet.

[0018] The elastic member may include: a plurality of first elastic portions arranged to be spaced apart from each other in the length direction of the housing; and a plurality of second elastic portions arranged to be spaced apart from each other in the length direction of the housing and alternately arranged with the first elastic portions.

[0019] Each of the first elastic portions may include: a first inclined portion formed to be inclined at a predetermined angle toward a first direction; a second inclined portion formed to be inclined at a predetermined angle toward a second direction so as to form an acute angle or an obtuse angle with the first inclined portion; and a folded portion provided between the first inclined portion and the second inclined portion and folded and deformed by the pressurization of the piston.

[0020] The folded portion may include a through hole.

[0021] A plurality of the through holes may be arranged along a circumferential direction of the folded portion to be spaced apart from each other.

[0022] Each of the second elastic portions may include a connecting portion connecting between the plurality of first elastic portions; and a protrusion formed to protrude from an outer surface of the connecting portion and provided along a circumferential direction of the connecting portion.

[0023] The second elastic portion may further include a recessed portion formed to be recessed on an outer circumferential surface of the protrusion and provided along a circumferential direction of the protrusion.

[0024] According to another aspect of the present disclosure, a pedal simulator for a vehicle is provided, which may include: a housing that is detachably connected to a pedal; a piston that is arranged to be slidably movable in the housing; and an elastic member that is configured to elastically support the piston inside the housing, is formed in a hollow shape, and is compressed by pressurization of the piston.

[0025] The pedal simulator may further include a bracket disposed on the housing and coupled to the pedal.

[0026] A plurality of the brackets may be arranged on the outer surface of the housing to be spaced apart from each other.

[0027] According to the present disclosure, the pedal simulator can eliminate the pedal return spring by the elastic member elastically supporting the piston.

[0028] Furthermore, according to the present disclosure, the pedal simulator can be used regardless of the type and shape of the pedal through modularization, and modularization can enable the pedal simulator to be commonly used for various types of pedals, thereby reducing maintenance and replacement costs and improving productivity.

[0029] Furthermore, according to the present disclosure, the pedal simulator can adjust the pedal effort based on the length, material, hardness, etc. of the elastic member.

[0030] Furthermore, according to the present disclosure, the pedal simulator can adjust the pedal effort based on the thickness and angle of the first and second inclined portions, the thickness of the second elastic portion, and the size of the recess.

[0031] Furthermore, according to the present disclosure, the pedal simulator can measure the pedal stroke by the magnet integrally provided in the piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a perspective view showing a pedal simulator for a vehicle mounted on a pendant-type pedal according to an embodiment of the present disclosure.

[0033] Figure 2 is an external perspective view showing a pedal simulator for a vehicle when viewed from one direction according to an embodiment of the present disclosure.

[0034] Figure 3 is shown when viewed from another direction Figure 2 An external perspective view of a pedal simulator for a vehicle.

[0035] Figure 4 is an exploded perspective view showing a pedal simulator for a vehicle when viewed from one direction according to an embodiment of the present disclosure.

[0036] Figure 5 is shown when viewed from another direction Figure 4 An exploded perspective view of a pedal simulator for a vehicle.

[0037] Figure 6 is a side view illustrating an elastic member in a pedal simulator for a vehicle according to an embodiment of the present disclosure.

[0038] Figure 7 is a cross-sectional view illustrating an elastic member in a pedal simulator for a vehicle according to an embodiment of the present disclosure.

[0039] Figure 8 Another embodiment of the present disclosure is shown Figure 7 A partially enlarged cross-sectional view of the elastic component.

[0040] Figure 9 is a cross-sectional view illustrating an operating state of an initial braking stage of a pedal simulator for a vehicle according to an embodiment of the present disclosure.

[0041] Figure 10 2 is a cross-sectional view showing an operating state of a pedal simulator for a vehicle in a mid-to-late braking phase according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0042] An exemplary embodiment of a pedal simulator for a vehicle will be described below with reference to the accompanying drawings. It should be understood that for clarity and convenience, the thickness of each line or the dimensions of each component in the drawings are exaggerated. Furthermore, the terms used herein are defined with consideration given to the functionality of the present disclosure and may vary depending on the user's or operator's intent or practice. Therefore, these terms should be defined based on the entire disclosure set forth herein.

[0043] Figure 1 is a perspective view illustrating a pedal simulator for a vehicle mounted on a suspended pedal according to an embodiment of the present disclosure.

[0044] refer to Figure 1The pedal simulator 1 for a vehicle according to an embodiment of the present disclosure can be detachably mounted regardless of the type (pedal, etc.) and shape of the tube pedal 10, for example, it can be a suspended pedal, an organ-type, etc. Therefore, the pedal simulator 1 for a vehicle of the present disclosure can be modularized so as to be easily assembled and mounted on the pedal 10 (e.g., a suspended pedal, an organ-type pedal, etc.), thereby achieving universalization of the product.

[0045] The pedal simulator 1 for a vehicle of the present disclosure may be easily assembled by coupling a bracket 150 provided on a housing 100 to a suspended pedal or an organ pedal by means of a coupling member 20 such as a bolt, a nut, etc.

[0046] Figure 2 is an external perspective view showing a pedal simulator for a vehicle when viewed from one direction according to an embodiment of the present disclosure. Figure 3 is shown when viewed from another direction Figure 2 An external perspective view of a pedal simulator for a vehicle. Figure 4 is an exploded perspective view showing a pedal simulator for a vehicle when viewed from one direction according to an embodiment of the present disclosure. Figure 5 is shown when viewed from another direction Figure 4 An exploded perspective view of a pedal simulator for a vehicle. Figure 6 is a side view illustrating an elastic member in a pedal simulator according to an embodiment of the present disclosure. Figure 7 is a cross-sectional view illustrating an elastic member in a pedal simulator according to an embodiment of the present disclosure.

[0047] refer to Figures 2 to 7 、 Figure 9 and Figure 10 , a pedal simulator 1 for a vehicle according to an embodiment of the present disclosure includes a housing 100 , a piston 200 , and an elastic member 300 , which will be described in detail below.

[0048] The housing 100 may include a hollow portion 110 , a solid portion 120 , and a guide 130 .

[0049] The hollow portion 110 is provided inside the housing 100 and may be formed in a hollow shape having a predetermined length. The piston 200 to be described later may be movably accommodated in the hollow portion 110 .

[0050] The hollow portion 110 can guide the linear motion of the piston body 210, which will be described later. An opening communicating with the hollow portion 110 is provided on the outer surface ( Figure 9 The hollow portion 110 may be formed as a cylindrical groove.

[0051] The hollow portion 110 may include a first hollow portion 111 and a second hollow portion 112 having a smaller inner diameter than the first hollow portion 111. Therefore, a step portion 113 that is bent inwardly toward the inside of the housing 100 and has a height variation may be formed between the first hollow portion 111 and the second hollow portion 112. The piston body 210 may be located on the step portion 113, thereby limiting the movement of the piston body 210.

[0052] The solid portion 120 is provided inside the housing 100 and is provided on one side of the hollow portion 110 ( Figure 9 ). The solid portion 120 may be formed in a solid shape having a predetermined length.

[0053] The second hollow portion 112 may be formed to have a larger diameter than the solid portion 120. The solid portion may be inserted into the elastic member 300 (to be described later) to support the elastic member 300.

[0054] The guide member 130 is provided inside the housing 100 and outside the solid portion 120. More specifically, the guide member 130 is provided between the housing 100 and the solid portion 120 and is formed along the circumferential direction of the solid portion 120. The guide member 130 is communicated with the first hollow portion 111. The elastic member 300 can be inserted into the guide member 130 so that the elastic direction of the elastic member 300 can be guided.

[0055] The housing 100 may be detachably connected to a pedal 10, such as a suspended pedal, an organ pedal, etc. The housing 100 includes a bracket 150 connected to the pedal 10. The bracket 150 may be formed to protrude from the outer surface of the housing 100, and a plurality of brackets 150 may be arranged to be spaced apart from each other.

[0056] The bracket 150 may include a hole 151. The hole 151 may be formed by penetrating the bracket 150. The bracket 150 may be coupled to a coupling hole formed in the pedal 10 via a coupling member 20 (e.g., a bolt, a nut, etc.). Thus, the housing 100 may remain stably coupled to the pedal 10, and rotation of the housing 100 may be prevented.

[0057] The housing 100 may further include a sensor 140. The sensor 140 may be mounted on an outer surface of the housing 100. The sensor 140 may be electrically connected to a vehicle controller (not shown) and may detect a position of a magnet 240 to be described later.

[0058] The piston 200 is arranged to slidably move in the housing 100. The piston 200 may include a piston body 210, a piston pressurizing member 220, and a piston rod 230.

[0059] The piston body 210 is positioned inside the housing 100. The piston body 210 may be accommodated in the hollow portion 110. More specifically, the piston body 210 may be movably accommodated in the first hollow portion 111. The piston body 210 may be formed in a flat plate shape.

[0060] The piston body 210 may include a spherical ball 211. The ball 211 may be formed to protrude from an outer surface of the piston body 210 facing the piston pressurizing member 220, which will be described later. The socket 221 of the piston pressurizing member 220 may be coupled to the ball 211.

[0061] The piston pressurizing component 220 is mounted on the piston body 210. More specifically, the piston pressurizing component 220 is mounted on the ball 211. The piston pressurizing component 220 may be exposed through the opening of the housing 100. When an external force is applied, the piston pressurizing component 220 moves to one side ( Figure 9 on the right side of the ).

[0062] The piston pressurizing member 220 may be rotatably coupled to the piston body 210 in an engaged manner. More specifically, a socket 221 provided on the piston pressurizing member 220 may be rotatably coupled to a ball 211 provided on the piston body 210 .

[0063] Furthermore, piston body 210 can be coupled to piston booster component 220 by caulking. For example, by pressing the opening of socket 221 toward piston body 210 for caulking, piston booster component 220, which is moved by an external force, can remain rotatably coupled to ball 211. Furthermore, piston body 210 can be caulked to piston booster component 220, thereby saving assembly time and cost.

[0064] The piston rod 230 is provided on one side of the piston body 210 ( Figure 9 More specifically, the piston rod 230 may be formed on an outer surface of the piston body 210.

[0065] The piston rod 230 may be movably received in the hollow portion 110. The piston body 210 may be formed to have a larger diameter than the piston rod 230.

[0066] The piston rod 230 is at one end facing the solid portion 120 ( Figure 9 The piston rod 230 may be formed into a cylindrical shape with a predetermined length. The elastic member 300 may be mounted on the piston rod 230.

[0067] The piston 200 may include a magnet 240. The magnet 240 may be provided on an outer circumferential surface of the piston body 210. The magnet 240 may be integrally formed with the piston body 210 by insert injection.

[0068] The magnet 240 may be formed along the circumferential direction of the piston body 210. Therefore, regardless of the installation position of the sensor 140 mounted on the housing 100, the position of the magnet 240 may be detected.

[0069] Magnet 240 can measure the position of piston 200. Magnet 240 has a magnetic force. When magnet 240 moves with piston 200, the magnetic field changes. Based on this change in magnetic field, magnet 240 transmits information about the pedal force applied by piston 200 or the position of piston 200 to the vehicle controller via sensor 140.

[0070] The elastic member 300 elastically supports the piston 200 inside the housing 100. The elastic member 300 may be formed in a hollow shape. More specifically, the elastic member 300 may be formed in a cylindrical shape having a predetermined length.

[0071] The elastic component 300 may include an elastically deformable plastic material, such as thermoplastic elastomer (TPE), thermoplastic vulcanizate (TPV), urethane, etc. The elastic component 300 may be injection molded.

[0072] The first part 300a of the elastic member 300 ( Figure 9 The left side in the figure) can be received in the interior of the piston rod 230 through the opening 230a of the piston rod 230 and contact the inner surface of the piston rod 230. The second part 300b ( Figure 9 The right side in the figure) can be inserted into the guide 130 and contact the inner surface of the second hollow portion 112. The elastic member 300 can provide elastic force to the piston body 210, and the piston body 210 is moved by the external force applied to the piston pressurizing member 220.

[0073] The first portion 300 a of the elastic member 300 may be press-fitted and coupled to the inner surface of the piston rod 230 through the opening 230 a of the piston rod 230 , thereby restricting rotation of the piston 200 moving in the housing 100 .

[0074] The elastic member 300 is compressed by the piston body 210, and the piston body 210 is moved by the external force applied to the piston pressurizing member 220. The compressed elastic member 300 can provide elastic force (elastic restoring force) to the piston body 210, thereby returning the piston body 210 to its original position.

[0075] The elastic member 300 may include a first elastic portion 310 and a second elastic portion 320 .

[0076] The plurality of first elastic portions 310 may be arranged to be spaced apart from each other in the length direction of the housing 100. More specifically, the first elastic portions 310 may be arranged to be spaced apart from each other along the axial direction of the elastic member 300.

[0077] Each of the first elastic portions 310 may include a first inclined portion 311 , a second inclined portion 312 , and a folded portion 313 .

[0078] The first inclined portion 311 may be formed to be inclined at a predetermined angle toward the first direction A. Here, the first direction A refers to a direction inclined toward the outside of the elastic member 300 .

[0079] The second inclined portion 312 may be connected to the first inclined portion 311. The second inclined portion 312 may be formed to be inclined at a predetermined angle toward the second direction B, thereby forming an acute angle or an obtuse angle with the first inclined portion 311. Here, the second direction B refers to a direction inclined toward the outside of the elastic member 300.

[0080] The folded portion 313 may be provided between the first inclined portion 311 and the second inclined portion 312. The folded portion 313 may be formed at a portion connecting the first inclined portion 311 and the second inclined portion 312. The folded portion 313 may be located outside the elastic member 300. The folded portion 313 may be folded and deformed by the pressurization of the piston 200.

[0081] The folded portion 313 may include a through hole 313a. The through hole 313a may be formed by penetrating the outer peripheral surface of the folded portion 313. A plurality of through holes 313a may be arranged along the circumferential direction of the folded portion 313, spaced apart from each other. The through holes 313a serve as passages for air to flow into and out of the elastic member 300. When the elastic member 300 is compressed, air inside the elastic member 300 may flow to the outside of the elastic member 300 through the through holes 313a.

[0082] The plurality of second elastic portions 320 may be arranged to be spaced apart from each other in the length direction of the housing 100 and may be arranged alternately with the first elastic portions 300. The second elastic portions 320 may be arranged to be spaced apart from each other along the axial direction of the elastic member 300. Each second elastic portion 320 may include a connecting portion 321 and a protrusion 322.

[0083] The connection portion 321 may connect between the plurality of first elastic portions 310. The connection portion 321 may connect in a straight line between the first inclined portion 311 and the second inclined portion 312 that are spaced apart from each other.

[0084] The protrusion 322 may be provided on the connection portion 321. The protrusion 322 may be formed to protrude from the outer surface of the connection portion 321 and may be provided along the circumferential direction of the connection portion 321. More specifically, the protrusion 322 may protrude in the radial direction of the elastic member 300.

[0085] The second elastic portion 320 may further include a recess 323. The recess 323 may be provided on the protrusion 322. The recess 323 may be recessed on the outer circumferential surface of the protrusion 322 and may be provided along the circumferential direction of the protrusion 322. The recess 323 may be in a relief shape to enhance the injectability of the elastic member 300 during the injection molding process of the elastic member 300.

[0086] Figure 8 is a partially enlarged cross-sectional view illustrating an elastic member 300 in a pedal simulator for a vehicle according to another embodiment of the present disclosure.

[0087] refer to Figure 8 , the first elastic portion 310 may include a first inclined portion 311 , a second inclined portion 312 and a folded portion 313 .

[0088] The first inclined portion 311 may be formed to be inclined at a predetermined angle toward the first direction A. Here, the first direction A refers to a direction inclined toward the inner side of the elastic member 300 .

[0089] The second inclined portion 312 may be connected to the first inclined portion 311. The second inclined portion 312 may be formed to be inclined at a predetermined angle toward the second direction B, thereby forming an acute angle or an obtuse angle with the first inclined portion 311. Here, the second direction B refers to a direction inclined toward the inside of the elastic member 300.

[0090] The folded portion 313 may be provided between the first inclined portion 311 and the second inclined portion 312. The folded portion 313 may be formed at a portion connecting the first inclined portion 311 and the second inclined portion 312. The folded portion 313 may be located inside the elastic member 300. The folded portion 313 may be folded and deformed by the pressurization of the piston 200.

[0091] The pedal simulator 1 for a vehicle according to an embodiment of the present disclosure may further include a holder 400 .

[0092] The housing 100 may include a slit hole 101. The slit hole 101 may be formed by penetrating the outer circumferential surface of the housing 100. The slit hole 101 may include a first slit hole 101a and a second slit hole 101b located at an opposite side of the first slit hole 101a.

[0093] The retainer 400 may be formed in a ring shape with one side open, pass through the first slit hole 101 a , and a free end of the retainer 400 may be inserted into the second slit hole 101 b , thereby coupling the retainer 400 to the housing 100 .

[0094] The retainer 400 may interfere with the piston pressurizing member 220 to prevent the piston 200 from being displaced in the axial direction through the opening of the housing 100 .

[0095] The following is a description of an operating procedure of the pedal simulator for a vehicle having the above-described configuration according to an embodiment of the present disclosure.

[0096] Figure 9 is a cross-sectional view showing an operating state of an initial braking phase of a pedal simulator for a vehicle according to an embodiment of the present disclosure, Figure 10 is a cross-sectional view illustrating an operating state of a pedal simulator for a vehicle in a mid-to-late braking phase according to an embodiment of the present disclosure.

[0097] refer to Figure 9 When the piston pressurizing member 220 is pressed by an external force, the piston rod 230 moves toward the solid portion 120. When the piston rod 230 moves, the first elastic portion 310 is compressed and deformed by the pressure of the piston body 210.

[0098] More specifically, when the piston body 210 presses the elastic member 300 due to the movement of the piston rod 230, the folded portion 313 is folded and deformed. As a result, the angle between the first inclined portion 311 and the second inclined portion 312 becomes smaller. When the first elastic portion 310 is compressed, the user can feel the initial braking feeling.

[0099] In this case, the position of the magnet 240 moved by the piston 200 is detected by the sensor 140. Based on the change in the magnetic field, the sensor 140 transmits position information of the piston 200 or pedal effort information to the vehicle controller.

[0100] refer to Figure 10 When external force continues to be applied to the piston pressurizing member 220, the piston rod 230 moves. The piston body 210 then presses the elastic member 300, so the second elastic portion 320 can be compressed and deformed by the pressurization of the piston body 210. As a result, the user can feel the braking feeling in the middle and late stages.

[0101] In this case, the position of the magnet 240 moved by the piston 200 is detected by the sensor 140. Based on the change in the magnetic field, the sensor 140 transmits the position information of the piston 200 or the pedal force information to the vehicle controller. When the external force applied to the piston pressurizing component 220 is released, the compressed elastic component 300 provides an elastic force (elastic restoring force) to the piston body 210, thereby returning the piston body 210 to its original position.

[0102] The pedal simulator 1 for a vehicle according to an embodiment of the present disclosure may eliminate a pedal return spring by the elastic member 300 elastically supporting the piston 200 .

[0103] The pedal simulator 1 for a vehicle according to an embodiment of the present disclosure is modularized and can be applied to any type and shape of the pedal 10. Modularization enables the pedal simulator 1 to be universally applicable to various types of pedals 10, thereby reducing maintenance and replacement costs and improving productivity.

[0104] The pedal simulator 1 for a vehicle according to an embodiment of the present disclosure may adjust the pedal effort based on the length, material, hardness, etc. of the elastic member 300 .

[0105] The pedal simulator 1 for a vehicle according to an embodiment of the present disclosure may adjust the pedal effort based on the thickness and angle of the first and second inclined portions 311 and 312 , the thickness of the second elastic portion 320 , and the size of the recess 323 .

[0106] The pedal simulator 1 for a vehicle according to an embodiment of the present disclosure may measure a pedal stroke through the magnet 240 integrally provided in the piston 200 .

[0107] Although exemplary embodiments of the present disclosure have 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 disclosure.

Claims

1. A pedal simulator for a vehicle, characterized in that The pedal simulator comprises: case; a piston arranged to slidably move in the housing; and an elastic member configured to elastically support the piston inside the housing, formed in a hollow shape, and compressed by the pressurization of the piston, Wherein, the piston comprises: a piston body positioned inside the housing and including a ball; a piston pressurizing member disposed on one side of the piston body and including a socket rotatably coupled to the ball; and A piston rod is provided at the other side of the piston body and has an elastic component installed on the piston rod.

2. The pedal simulator for a vehicle according to claim 1, characterized in that The piston rod has an opening on one end thereof and is formed in a hollow shape.

3. The pedal simulator for a vehicle according to claim 2, characterized in that The first part of the elastic member is accommodated inside the piston rod.

4. The pedal simulator for a vehicle according to claim 1, characterized in that The housing comprises: a hollow portion, wherein the piston is movably received in the hollow portion; a solid portion provided at one side of the hollow portion and inserted into the elastic member; and A guide member is formed outside the solid portion and configured to communicate with the hollow portion, wherein the second member of the elastic member is inserted into the guide member.

5. The pedal simulator for a vehicle according to claim 4, characterized in that The piston body is formed to have a larger diameter than the piston rod.

6. The pedal simulator for a vehicle according to claim 1, characterized in that The housing includes a slit hole penetrating an outer peripheral surface thereof, The pedal simulator further comprises: A retainer passes through the slit hole to be coupled to the housing and interferes with the piston pressurizing member to prevent displacement of the piston.

7. The pedal simulator for a vehicle according to claim 6, characterized in that The holder is formed in a ring shape with one side open.

8. The pedal simulator for a vehicle according to claim 1, characterized in that The piston further includes a magnet provided on an outer circumferential surface of the piston body and formed along a circumferential direction of the piston body.

9. The pedal simulator for a vehicle according to claim 8, characterized in that Also includes: A sensor is provided on the housing and detects a position of the magnet.

10. A pedal simulator for a vehicle, characterized in that The pedal simulator comprises: case; a piston arranged to slidably move in the housing; and an elastic member configured to elastically support the piston inside the housing, formed in a hollow shape, and compressed by the pressurization of the piston, Wherein, the piston comprises: a piston body positioned inside the housing and including a ball; a piston pressurizing member disposed on one side of the piston body and including a socket rotatably coupled to the ball; and a piston rod, which is provided on the other side of the piston body and has an elastic component, the elastic component being mounted on the piston rod, Wherein, the elastic component includes: a plurality of first elastic portions arranged to be spaced apart from each other in a length direction of the housing; and A plurality of second elastic portions are arranged in a length direction of the housing to be spaced apart from each other and are alternately arranged with the first elastic portions.

11. The pedal simulator for a vehicle according to claim 10, characterized in that Each of the first elastic portions comprises: a first inclined portion formed to be inclined at a predetermined angle toward a first direction; a second inclined portion formed to be inclined at a predetermined angle toward a second direction so as to form an acute angle or an obtuse angle with the first inclined portion; and A folded portion is provided between the first inclined portion and the second inclined portion and is folded and deformed by the pressurization of the piston.

12. The pedal simulator for a vehicle according to claim 11, characterized in that The folded portion includes a through hole.

13. The pedal simulator for a vehicle according to claim 12, characterized in that The plurality of through holes are arranged along a circumferential direction of the folded portion to be spaced apart from each other.

14. The pedal simulator for a vehicle according to claim 10, characterized in that Each of the second elastic portions comprises: a connecting portion connecting between the plurality of first elastic portions; and A protrusion is formed to protrude from an outer surface of the connecting portion and is provided along a circumferential direction of the connecting portion.

15. The pedal simulator for a vehicle according to claim 14, characterized in that The second elastic portion includes a recessed portion formed to be recessed on an outer peripheral surface of the protrusion and provided along a circumferential direction of the protrusion.

16. A pedal simulator for a vehicle, characterized in that The pedal simulator comprises: a housing removably coupled to the pedal; a piston arranged to slidably move in the housing; and an elastic member configured to elastically support the piston inside the housing, formed in a hollow shape, and compressed by the pressurization of the piston, Wherein, the piston comprises: a piston body positioned inside the housing and including a ball; a piston pressurizing member disposed on one side of the piston body and including a socket rotatably coupled to the ball; and A piston rod is provided at the other side of the piston body and has an elastic component installed on the piston rod.

17. The pedal simulator for a vehicle according to claim 16, characterized in that Also includes: A bracket is disposed on the housing and coupled to the pedal.

18. The pedal simulator for a vehicle according to claim 17, characterized in that A plurality of the brackets are arranged on the outer surface of the housing to be spaced apart from each other.

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