CN221293455U - Pedal sense simulator and automobile - Google Patents

Abstract

The utility model provides a pedal feel simulator and an automobile, and relates to the technical field of automobile parts. The limiting pretension to each spring can be realized to this scheme, effectively avoids rocking the noise that brings.

Description

Pedal sense simulator and automobile

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a pedal feel simulator and an automobile.

Background

The automobile braking is generally realized by controlling an electric master cylinder to compress brake oil through a motor, and in order to ensure that the pedal feel of a driver is matched with the actual braking, the driving comfort is improved, and a pedal feel simulator is generally required to simulate the pedal feel.

The pedal feel simulator at the present stage mainly compresses a spring by a hydraulic oil way, and transmits the force fed back by the spring to a pedal, so that pedal feel is realized; in order to improve the stroke of the pedal feel simulator, two or more springs are generally adopted, when a driver presses a brake pedal, each spring is compressed in a segmented mode to increase stress, so that the pedal feel range of the brake pedal is increased, but in the prior art, each spring cannot be limited in the axial direction, and the spring which is not limited can shake inside to generate vibration noise.

Disclosure of utility model

The utility model aims to solve the technical problem that the existing pedal feel simulator is large in vibration noise.

In one aspect, the utility model provides a pedal feel simulator, which comprises a shell, a piston, a primary compression mechanism, a secondary compression mechanism and a limit post, wherein one end of the shell is provided with a first opening, the piston is inserted into the shell from the first opening, one end of the piston inserted into the shell is provided with a first accommodating groove, the notch end of the first accommodating groove forms an extrusion part, the secondary compression mechanism is positioned between the extrusion part and the bottom wall of the shell, the primary compression mechanism comprises a first spiral spring and a second spiral spring sleeved in the first spiral spring, one end of the first spiral spring is in butt joint with the bottom of the first accommodating groove, and the other end of the first spiral spring extends out of the first accommodating groove and is in butt joint with the top end of the secondary compression mechanism; one end of the limiting column is connected with one of the bottom wall of the shell and the top end of the secondary compression mechanism, the other end of the limiting column axially penetrates through the second spiral spring, the periphery of the limiting column protrudes to form a blocking edge, one end of the second spiral spring is located in the first containing groove and is abutted to the blocking edge, and the other end of the second spiral spring extends out of the first containing groove and is abutted to the top end of the secondary compression mechanism.

According to the pedal feel simulator, the upper end of the shell is provided with the first opening, the lower end of the shell forms the bottom wall of the shell, one axial end of the piston is inserted into the shell from the first opening, when a driver steps on pedal braking, the piston moves towards the bottom wall of the shell to compress the primary compression mechanism and the secondary compression mechanism, specifically, the piston moves downwards, the bottom of the first accommodating groove of the piston firstly compresses the first spiral spring of the primary compression mechanism, and the second spiral spring of the primary compression mechanism is kept motionless under the limit of the secondary compression mechanism and the blocking edge; when the piston continues to move downwards until the bottom of the first accommodating groove is abutted against the second spiral spring, the first spiral spring is connected with the second spiral spring in parallel, and compression deformation occurs to the first spiral spring and the second spiral spring at the same time, so that the stress is increased; when the notch end of the first accommodating groove, namely the extrusion part of the piston is abutted against the secondary compression mechanism, the first spiral spring and the second spiral spring are not compressed continuously, excessive compression of the first spiral spring and the second spiral spring is effectively avoided, the extrusion part can compress the secondary compression mechanism continuously downwards at the moment, the stress is further increased, and therefore the pedal feel simulator with a larger stroke is obtained. Moreover, the axial both ends of the first coil spring of the primary compression mechanism are respectively abutted with the bottom of the first accommodating groove and the top end of the secondary compression mechanism, the axial both ends of the second coil spring are respectively abutted with the blocking edge of the limiting column and the top end of the secondary compression mechanism, the axial both ends of the secondary compression mechanism are respectively abutted with the bottom wall of the shell and the end part of the primary compression mechanism, and the compression mechanisms at all levels are in a limiting pre-tightening state when the primary compression mechanism is in work or not in work, so that the problem of vibration noise caused by axial shaking of the spring is effectively avoided.

Optionally, the pedal feel simulator further comprises a limiting piece, wherein the limiting piece is sleeved on the limiting post and can slide along the limiting post, the limiting piece is located between the blocking edge and one end of the second spiral spring, and the radial size of the limiting piece is larger than that of the blocking edge.

Optionally, the spacing piece is last to be equipped with the confession spacing post wears to establish the mounting hole, the lateral wall of mounting hole is to keeping away from keep off edge one side extension in order to form the guide section.

Optionally, the tank bottom of first holding tank has seted up the second holding tank, the second holding tank with keep off the edge position corresponds, the spacing post is used for inserting in the second holding tank, the spacing piece surpasses keep off the edge of edge, be used for with the tank bottom of first holding tank in the partial butt outside the second holding tank.

Optionally, when the pedal is not depressed, an axial distance between the pressing portion and the secondary compression mechanism is a preset distance, wherein a depth of the second accommodating groove is greater than the preset distance.

Optionally, the second stage compression mechanism includes belleville spring and gasket, belleville spring is kept away from the one end of the diapire of casing is equipped with the gasket, the gasket cover is located on the spacing post, first coil spring stretches out the one end of first holding tank with the gasket butt, second coil spring stretches out the one end of first holding tank with the gasket butt.

In another aspect, the present utility model provides an automobile, including the pedal feel simulator. The advantages of the automobile compared with the prior art are the same as those of the pedal feel simulator, and the description thereof will not be repeated.

Optionally, the automobile further comprises a brake controller housing, a second opening is formed in one end of the brake controller housing, the second opening end of the brake controller housing is matched with the first opening end of the shell of the pedal feel simulator to form a containing cavity, a piston is arranged in the containing cavity to divide the containing cavity into a first cavity and a second cavity which are arranged at intervals along the axial direction, and an oil inlet communicated with the first cavity and an oil outlet communicated with the second cavity are formed in the brake controller housing.

Optionally, the vehicle further comprises a first seal, through which the piston is in sealing connection with the brake controller housing.

Optionally, the automobile further comprises a second sealing element and a clamping ring, wherein the second sealing element and the clamping ring are arranged at intervals along the axial direction of the shell, and the shell is connected with the brake controller shell through the second sealing element and the clamping ring.

Drawings

FIG. 1 is a schematic diagram of the mounting structure of a pedal feel simulator and brake controller housing according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram showing a first operation state of the pedal feel simulator according to the embodiment of the utility model;

FIG. 3 is a schematic diagram showing a second operation state of the pedal feel simulator according to the embodiment of the utility model;

FIG. 4 is a schematic diagram showing a third operating state of the pedal feel simulator according to the embodiment of the utility model;

Fig. 5 is a graph of displacement versus load for a pedal feel simulator in accordance with an embodiment of the present utility model.

Reference numerals illustrate:

1. A housing; 2. a piston; 21. a first accommodation groove; 211. an extrusion part; 22. a second accommodation groove; 3. a first stage compression mechanism; 31. a first coil spring; 32. a second coil spring; 4. a secondary compression mechanism; 41. a belleville spring; 42. a gasket; 5. a limit column; 51. a blocking edge; 6. a limiting piece; 61. a guide section; 7. a brake controller housing; 71. an oil inlet; 72. an oil outlet; 8. a first seal; 9. a second seal; 10. and a clasp.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "coupled," and "mated" are to be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

In addition, in the description of the present utility model, it should be noted that terms such as "upper", "lower", "front", "rear", etc. in the embodiments indicate terms of orientation, and only for simplifying the positional relationship of the description based on the drawings of the specification, it does not represent that the elements and devices etc. referred to must be operated according to the operations and methods and configurations defined in the specific orientation and limitation of the present utility model, and such orientation terms do not constitute limitations of the present utility model.

Herein, a YZ coordinate system is established in which the forward direction of the Y axis represents the left direction, the reverse direction of the Y axis represents the right direction, the forward direction of the Z axis represents the upper direction, and the reverse direction of the Z axis represents the lower direction. It should also be noted that the foregoing Y-axis and Z-axis are meant to be illustrative of the present utility model and to simplify the description, and are not intended to indicate or imply that the devices or elements referred to must be in a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.

As shown in fig. 1 to 4, the pedal feel simulator of the embodiment of the utility model comprises a shell 1, a piston 2, a primary compression mechanism 3, a secondary compression mechanism 4 and a limit post 5, wherein one end of the shell 1 is provided with a first opening, one axial end of the piston 2 is inserted into the shell 1 from the first opening, one end of the piston 2 inserted into the shell 1 is provided with a first accommodating groove 21, a notch end of the first accommodating groove 21 forms a pressing part 211, the secondary compression mechanism 4 is positioned between the pressing part 211 and the bottom wall of the shell 1, the primary compression mechanism 3 comprises a first coil spring 31 and a second coil spring 32 sleeved in the first coil spring 31, one end of the first coil spring 31 is abutted with the bottom of the first accommodating groove 21, and the other end of the first coil spring 31 extends out of the first accommodating groove 21 and is abutted with the top end of the secondary compression mechanism 4; one end of the limiting post 5 is connected with one of the bottom wall of the shell 1 and the top end of the secondary compression mechanism 4, the other end of the limiting post 5 axially passes through the second spiral spring 32, the peripheral side of the limiting post 5 protrudes to form a blocking edge 51, one end of the second spiral spring 32 is located in the first accommodating groove 21 and is abutted to the blocking edge 51, and the other end extends out of the first accommodating groove 21 and is abutted to the top end of the secondary compression mechanism 4.

Specifically, the casing 1 and the piston 2 are all vertically arranged, the casing 1 can be of a hollow cylindrical structure, a first opening is formed in the upper end of the casing 1, the lower end of the casing 1 forms the bottom wall of the casing 1, the lower end of the piston 2 is inserted into the casing 1 from the first opening, the lower end of the piston 2 is provided with a first accommodating groove 21 with a downward opening, the first-stage compression mechanism 3 and the second-stage compression mechanism 4 are vertically arranged and are positioned between the groove bottom of the first accommodating groove 21 and the bottom wall of the casing 1, the first coil spring 31 is thicker, the compression stroke is larger, the compression stroke of the second coil spring 32 is smaller, the first coil spring 31, the second coil spring 32, the second-stage compression mechanism 4, the limit column 5 and the piston 2 can be coaxially arranged, the inner diameter of the first coil spring 31 can be larger than the outer diameter of the second coil spring 32, and interference with the second coil spring 32 is avoided. The cross-sectional dimension of the first accommodating groove 21 may be slightly larger than the cross-sectional dimension of the first coil spring 31, so as to avoid interference between the first coil spring 31 and the groove wall of the first accommodating groove 21 during the up-down compression.

The limit post 5 can be hollow, so that the material consumption is reduced, and the weight is reduced. The lower extreme of spacing post 5 can extend in order to form the turn-ups along circumference, turn-ups and the parallel laminating of diapire of casing 1, second grade compression mechanism 4 are located on the turn-ups and with turn-ups butt, or the lower extreme of spacing post 5 is connected with the top of second grade compression mechanism 4. The upper end of the limit post 5 extends along the circumferential direction to form a blocking edge 51, the upper end of the second coil spring 32 is abutted with the blocking edge 51, and the lower end of the second coil spring 32 is abutted with the upper end face of the secondary compression mechanism 4, so that the limit of the second coil spring 32 is realized.

In this embodiment, when the driver steps on the pedal to brake, the piston 2 moves towards the bottom wall of the housing 1 to compress the primary compression mechanism 3 and the secondary compression mechanism 4, specifically, as shown in fig. 1, the piston 2 moves downward, the bottom of the first accommodating groove 21 of the piston 2 firstly compresses the first coil spring 31 of the primary compression mechanism 3, the second coil spring 32 of the primary compression mechanism 3 is kept still under the limit of the secondary compression mechanism 4 and the stop edge 51, and at this time, the displacement of the piston 2 and the applied load form a load curve of section S1 in fig. 5; when the piston 2 continues to move downwards until the bottom of the first accommodating groove 21 is abutted against the second coil spring 32, as shown in fig. 2, the first coil spring 31 and the second coil spring 32 are connected in parallel, and compression deformation is carried out on the two simultaneously, which is equivalent to that the integral rigidity of the primary compression mechanism 3 is increased, the stress is increased, and at the moment, the displacement of the piston 2 and the applied load form a load curve of the section S2 in fig. 5; when the notch end of the first accommodating groove 21, that is, the pressing portion 211 of the piston 2 abuts against the secondary compression mechanism 4, as shown in fig. 3, the first coil spring 31 and the second coil spring 32 are not continuously compressed, so that excessive compression of the first coil spring 31 and the second coil spring 32 is effectively avoided, at this time, the pressing portion can continuously compress the secondary compression mechanism 4 downwards, as shown in fig. 4, the stress is further increased, and at this time, the displacement of the piston 2 and the applied load form a load curve of the section S3 in fig. 5, so that the pedal feel simulator with a larger stroke is obtained. Moreover, the axial both ends of the first coil spring 31 of the primary compression mechanism 3 are respectively abutted with the bottom of the first accommodating groove 21 and the top end of the secondary compression mechanism 4, the axial both ends of the second coil spring 32 are respectively abutted with the stop edge 51 of the limit post 5 and the top end of the secondary compression mechanism 4, the axial both ends of the secondary compression mechanism 4 are respectively abutted with the bottom wall of the shell 1 and the end part of the primary compression mechanism 3, and the compression mechanisms at all stages are in a limit pre-tightening state when the primary compression mechanism is in operation or not in operation, so that the problem of vibration noise caused by axial shaking of the spring is effectively avoided.

The secondary compression mechanism 4 is slightly deformed to some extent also at the time of compression of the primary compression mechanism 3.

Optionally, the pedal feel simulator further includes a limiting piece 6, the limiting piece 6 is sleeved on the limiting post 5 and can slide along the limiting post 5, the limiting piece 6 is located between the blocking edge 51 and one end of the second coil spring 32, and the radial dimension of the limiting piece 6 is greater than the radial dimension of the blocking edge 51.

In this embodiment, the limiting plate 6 is located below the blocking edge 51 and can slide downward along the limiting post 5, when the piston 2 begins to compress the first coil spring 31, the upper and lower end surfaces of the limiting plate 6 respectively abut against the upper end of the second coil spring 32 and the blocking edge 51, so as to realize the axial upward limitation of the second coil spring 32; when the first coil spring 31 and the second coil spring 32 are connected in parallel, the limiting piece 6 moves downwards relative to the limiting post 5, the upper end surface and the lower end surface of the limiting piece 6 are respectively abutted with the bottom of the first accommodating groove 21 and the upper end of the second coil spring 32, and the second coil spring 32 can be subjected to downward extrusion deformation under the movement of the piston 2.

Optionally, the limiting piece 6 is provided with a mounting hole for the limiting post 5 to penetrate, and a side wall of the mounting hole extends away from the side of the blocking edge 51 to form a guiding section 61.

In this embodiment, the mounting hole may be a circular hole, the limiting post 5 may be a circular post, the limiting piece 6 is sleeved on the limiting post 5 through the mounting hole, the limiting piece 6 is located below the blocking edge 51, the inner wall of the mounting hole extends downward to form a guiding section 61, the second coil spring 32 is sleeved outside the guiding section 61, the second coil spring 32 is guided by the guiding section 61, and the second coil spring 32 is prevented from tilting in the compression process. The cross section of the limiting piece 6 on the YZ plane is T-shaped.

Optionally, a second accommodating groove 22 is formed at the bottom of the first accommodating groove 21, the second accommodating groove 22 corresponds to the position of the blocking edge 51, the limiting post 5 is used for being inserted into the second accommodating groove 22, and the limiting piece 6 exceeds the edge of the blocking edge 51 and is used for being abutted with the part of the bottom of the first accommodating groove 21 outside the second accommodating groove 22.

In this embodiment, the middle of the bottom of the first receiving groove 21 is recessed upward to form a second receiving groove 22, and the second receiving groove 22 is matched with the shape of the blocking edge 51 at the upper end of the limiting post 5. The cross section size of the limiting piece 6 is larger than that of the second accommodating groove 22, so that the limiting post 5 and the blocking edge 51 on the limiting post can extend into the second accommodating groove 22, and the limiting piece 6 exceeds the blocking edge 51, or the circumferential edge of the limiting piece 6 can be abutted with the bottom wall of the first accommodating groove 21.

When the piston 2 moves downwards to the bottom of the first accommodating groove 21 and is abutted against the limiting piece 6, the two spiral springs are connected in parallel, when the piston 2 continues to move downwards, the two spiral springs are compressed simultaneously, the limiting piece 6 cannot continue to move upwards under the limiting of the bottom wall of the first accommodating groove, so that the limiting post 5 and the limiting piece 6 move relatively, when the notch end of the first accommodating groove 21 is abutted against the secondary compression mechanism 4, the secondary compression mechanism 4 is compressed downwards until the limiting post 5 is abutted against the bottom of the second accommodating groove 22, the secondary compression mechanism 4 compresses in place, the compression stroke of the secondary compression mechanism 4 is limited by the abutting of the limiting post 5 and the bottom of the second accommodating groove 22, the excessive compression of the secondary compression mechanism 4 is avoided, the failure occurs, and the service life is prolonged.

Alternatively, when the pedal is not depressed, the axial distance between the pressing portion 211 and the secondary compression mechanism 4 is a preset distance, wherein the depth of the second accommodation groove 22 is greater than the preset distance.

In this embodiment, when the piston 2 is in the initial state, that is, when the pedal is not stepped, a preset distance is provided between the pressing portion 211 of the piston 2 and the secondary compression mechanism 4, so that the primary compression mechanism 3 can be compressed first when the piston 2 starts to move downward, and only after the primary compression mechanism 3 compresses to a predetermined stroke, the pressing portion 211 of the piston 2 abuts against the secondary compression mechanism 4 to compress the secondary compression mechanism 4.

Here, the depth of the second accommodating groove 22 is greater than the preset distance, that is, when the piston 2 moves downward until the pressing portion 211 abuts against the second accommodating groove 22, the upper end of the limiting post 5 does not abut against the groove bottom of the second accommodating groove 22, and the piston 2 can continue to move downward to compress the second accommodating groove 4 until the upper end of the limiting post 5 abuts against the groove bottom of the second accommodating groove 22, and the deformation amount of the second accommodating groove 4 is equal to the depth of the second accommodating groove 22 minus the preset distance.

Optionally, the secondary compression mechanism 4 includes a belleville spring 41 and a spacer 42, one end of the belleville spring 41 away from the bottom wall of the housing 1 is provided with the spacer 42, the spacer 42 is sleeved on the limit post 5, one end of the first coil spring 31 extending out of the first accommodating groove 21 is abutted with the spacer 42, and one end of the second coil spring 32 extending out of the first accommodating groove 21 is abutted with the spacer 42.

Specifically, the spacer 42 may be a circular spacer, which matches the shape of the inner cavity of the housing 1, and the spacer 42 may be connected to the belleville springs 41, and the spacer 42 provides a flat supporting surface to support the primary compression mechanism 3.

In this embodiment, the disc spring 41 has a high stiffness, and the coil spring has a low cost, and when the disc spring 41 is combined with the two coil springs, the overall production cost can be reduced, compared with the disc spring combination, only one disc spring is used, and the error assembly of multiple types is avoided; the pedal is more stressed and has sufficient redundancy in matching with the brake than if a coil spring were used alone.

In another embodiment of the present utility model, an automobile is provided, which includes the pedal feel simulator. The advantages of the automobile compared with the prior art are the same as those of the pedal feel simulator, and the description thereof will not be repeated.

As shown in fig. 1, optionally, the automobile further comprises a brake controller housing 7, one end of the brake controller housing 7 is provided with a second opening, the second opening end of the brake controller housing 7 is matched with the first opening end of the shell 1 of the pedal feel simulator to form a containing cavity, the piston 2 is arranged in the containing cavity to divide the containing cavity into a first cavity and a second cavity which are arranged at intervals along the axial direction, and the brake controller housing 7 is provided with an oil inlet 71 communicated with the first cavity and an oil outlet 72 communicated with the second cavity.

In this embodiment, the brake controller housing 7 is a brake controller housing, the brake controller housing 7 may be a hollow cylindrical structure, the lower end of the brake controller housing 7 is provided with a second opening, the housing 1 cooperates with the brake controller housing 7 to form a containing cavity, the piston 2 divides the containing cavity into a first cavity and a second cavity which are arranged at intervals up and down, the upper end of the brake controller housing 7 may be provided with an oil inlet 71, the side wall of the brake controller housing 7 may be provided with an oil outlet 72, a circle of communication holes are circumferentially arranged on the wall of the first containing groove 21 at intervals, and the second cavity is communicated with the oil outlet 72 through the communication holes.

When the driver steps on the pedal, hydraulic oil enters the first cavity from the oil inlet 71 to push the piston 2 to move downwards, and the hydraulic oil in the second cavity flows to the oil outlet through the communication hole and finally returns to the liquid storage tank, so that pressure balance on two sides of the piston 2 is realized.

As shown in fig. 1, the vehicle optionally further comprises a first seal 8, by means of which first seal 8 the piston 2 is sealingly connected to the brake controller housing 7.

In this embodiment, the first sealing element 8 may be a sealing cup, an annular sealing groove is formed in the circumferential outer wall of the piston 2, the first sealing element 8 may be disposed in the annular sealing groove, the piston 2 is in sealing connection with the brake controller housing 7 through the first sealing element 8, so as to improve the tightness of the first cavity and avoid leakage of hydraulic oil in the first cavity.

As shown in fig. 1, the automobile optionally further comprises a second sealing member 9 and a snap ring 10, wherein the second sealing member 9 and the snap ring 10 are arranged at intervals along the axial direction of the housing 1, and the housing 1 is connected with the brake controller shell 7 through the second sealing member 9 and the snap ring 10.

In this embodiment, snap ring 10 can be the screw thread snap ring, and casing 1 accessible snap ring 10 is connected with brake controller shell 7, and second sealing member 9 is located the top of snap ring 10, second sealing member 9 can be the O type sealing washer, and the O type sealing washer is drawn materials conveniently, and is with low costs, utilizes O type sealing washer to improve the sealing performance between brake controller shell 7 and the casing 1, avoids the hydraulic oil in the second cavity to leak from the clearance between brake controller shell 7 and the casing 1.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The pedal feel simulator is characterized by comprising a shell (1), a piston (2), a primary compression mechanism (3), a secondary compression mechanism (4) and a limit column (5), wherein a first opening is formed in one end of the shell (1), one axial end of the piston (2) is inserted into the shell (1) from the first opening, a first accommodating groove (21) is formed in one end of the piston (2) inserted into the shell (1), an extrusion part (211) is formed at the notch end of the first accommodating groove (21), the secondary compression mechanism (4) is located between the extrusion part (211) and the bottom wall of the shell (1), the primary compression mechanism (3) comprises a first spiral spring (31) and a second spiral spring (32) sleeved in the first spiral spring (31), and one end of the first spiral spring (31) is abutted to the groove bottom of the first accommodating groove (21), and the other end of the first spiral spring is extended out of the first accommodating groove (21) and abutted to the top end of the secondary compression mechanism (4); one end of the limiting column (5) is connected with one of the bottom wall of the shell (1) and the top end of the secondary compression mechanism (4), the other end of the limiting column (5) axially penetrates through the second spiral spring (32), the periphery of the limiting column (5) protrudes to form a blocking edge (51), one end of the second spiral spring (32) is located in the first containing groove (21) and is abutted to the blocking edge (51), and the other end of the second spiral spring extends out of the first containing groove (21) and is abutted to the top end of the secondary compression mechanism (4).

2. The pedal feel simulator according to claim 1, further comprising a limiting piece (6), wherein the limiting piece (6) is sleeved on the limiting post (5) and can slide along the limiting post (5), the limiting piece (6) is located between the blocking edge (51) and one end of the second coil spring (32), and the radial dimension of the limiting piece (6) is larger than the radial dimension of the blocking edge (51).

3. Pedal feel simulator according to claim 2, characterized in that the limit piece (6) is provided with a mounting hole for the limit post (5) to pass through, the side wall of the mounting hole extends to the side far away from the baffle edge (51) to form a guide section (61).

4. Pedal feel simulator according to claim 2, characterized in that the bottom of the first accommodation groove (21) is provided with a second accommodation groove (22), the second accommodation groove (22) corresponds to the blocking edge (51), the limit post (5) is used for being inserted into the second accommodation groove (22), and the limit piece (6) exceeds the edge of the blocking edge (51) and is used for being abutted with the part of the bottom of the first accommodation groove (21) outside the second accommodation groove (22).

5. The pedal feel simulator according to claim 4, characterized in that an axial distance between the pressing portion (211) and the secondary compression mechanism (4) is a preset distance when the pedal is not depressed, wherein a depth of the second accommodation groove (22) is greater than the preset distance.

6. Pedal feel simulator according to any one of claims 1-5, characterized in that the secondary compression mechanism (4) comprises a belleville spring (41) and a gasket (42), wherein the gasket (42) is arranged at one end of the belleville spring (41) away from the bottom wall of the shell (1), the gasket (42) is sleeved on the limit post (5), one end of the first coil spring (31) extending out of the first accommodating groove (21) is abutted with the gasket (42), and one end of the second coil spring (32) extending out of the first accommodating groove (21) is abutted with the gasket (42).

7. An automobile comprising the pedal feel simulator according to any one of claims 1 to 6.

8. The automobile according to claim 7, further comprising a brake controller housing (7), wherein a second opening is formed in one end of the brake controller housing (7), the second opening end of the brake controller housing (7) is mounted in cooperation with the first opening end of the pedal feel simulator housing (1) to form a containing cavity, the piston (2) is disposed in the containing cavity to divide the containing cavity into a first cavity and a second cavity which are axially spaced apart, and an oil inlet (71) communicated with the first cavity and an oil outlet (72) communicated with the second cavity are formed in the brake controller housing (7).

9. The vehicle according to claim 8, characterized in that it further comprises a first seal (8), by means of which first seal (8) the piston (2) is sealingly connected to the brake controller housing (7).

10. The automobile according to claim 8, further comprising a second seal (9) and a snap ring (10), the second seal (9) and the snap ring (10) being disposed at intervals along an axial direction of the housing (1), the housing (1) being connected with the brake controller housing (7) through the second seal (9) and the snap ring (10).