Pedal feeling simulator and brake-by-wire system
By designing a pedal sense simulator containing elastic parts of different stiffness, the decoupling problem of brake pedal input and frictional force in traditional braking systems is solved, the simulation effect of brake feeling is improved, and the durability and service life of the equipment are improved.
Patent Information
- Application Number
- CN202422235591.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-11
AI Technical Summary
In traditional braking systems, the brake pedal input and friction braking force cannot be decoupled, resulting in limitations in kinetic energy recovery and intelligent driving applications of intelligent vehicles. In addition, existing pedal sense simulation equipment uses rubber springs to simulate braking feeling, but the elasticity of the rubber spring changes with temperature changes, affecting the simulation effect, and easily affecting the normal use of surrounding components, resulting in durability problems.
A pedal sense simulator is designed, including the first housing and the second housing being movably interlocked to form a mounting cavity and creating a resistance through an elastic simulation mechanism to simulate a braking feeling. The simulation mechanism consists of elastic parts of different stiffness. By controlling the stiffness and types of each elastic part, a nonlinear stiffness curve is realized, different braking feelings are simulated, and the use of rubber elastic parts is avoided.
The brake pedal input and friction force are decoupled, the brake feel is improved, the stiffness changes of rubber elastic parts at different temperatures are avoided, and the durability and service life are improved.
Smart Images
Figure CN223045722U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle accessories, in particular to a pedal feel simulator and a wire-controlled braking system. Background Art
[0002] In a traditional braking system, it is impossible to decouple the braking pedal input from the frictional braking force, which has great limitations in use, making it impossible for the traditional braking system to better meet the usage requirements of intelligent vehicles in kinetic energy recovery and intelligent driving. The wire-controlled braking system realizes the decoupling of the braking pedal input from the frictional braking force, so the wire-controlled braking system is increasingly used in vehicles. In order to better improve the user experience, a pedal feel simulation device is adopted in the wire-controlled braking system to simulate the pedal braking feel. However, in this technical field, although the pedal feel simulation device can use a rubber spring to simulate the non-linear braking force, the elasticity of the rubber spring changes with temperature. Especially in a low-temperature environment, the rubber spring becomes hard, which affects the simulation effect of the pedal feel simulation device. Moreover, when the rubber spring is compressed, the diameter of the rubber spring increases, and then the rubber spring easily affects the normal use of other surrounding components, such as the coil spring in the pedal feel module device, resulting in durability problems. Therefore, how to improve the simulation effect and service life of the pedal braking feel has become an urgent technical problem to be solved. Summary of the Utility Model
[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present utility model is to provide a pedal feel simulator and a wire-controlled braking system for improving the simulation effect and service life of the pedal braking feel.
[0004] The above object of the present utility model can be achieved by the following technical solutions. The present utility model provides a pedal feel simulator, including:
[0005] A first housing;
[0006] A second housing, which is movably inserted into the first housing, and an installation cavity is formed between the second housing and the first housing;
[0007] An elastic simulation mechanism, which includes an actuator movably arranged in the installation cavity, a first elastic component arranged between the actuator and the first housing, and a second elastic component arranged between the actuator and the second housing. The stiffness of the first elastic component is greater than that of the second elastic component.
[0008] In a preferred embodiment of the present utility model, the first elastic component includes a first elastic member disposed between the actuator and the first housing, and a second elastic member disposed between the first elastic member and the first housing, and the stiffness of the first elastic member is less than that of the second elastic member.
[0009] In a preferred embodiment of the present utility model, the first elastic member includes a first spring, the first spring is disposed between the actuator and the second elastic member, the first spring has a first preset stiffness, and the first preset stiffness is less than that of the second elastic member.
[0010] In a preferred embodiment of the present utility model, the second elastic member includes a first set of disc springs, the first set of disc springs is disposed between the first elastic member and the first housing, the first set of disc springs has a second preset stiffness, and the second preset stiffness is greater than that of the first elastic member.
[0011] In a preferred embodiment of the present utility model, the second elastic member further includes a second set of disc springs, the second set of disc springs is disposed between the first set of disc springs and the first housing, the second set of disc springs has a third preset stiffness, and the third preset stiffness is greater than the second preset stiffness.
[0012] In a preferred embodiment of the present utility model, a displacement limiter is further included, and the displacement limiter is disposed between the first set of disc springs and the second set of disc springs.
[0013] In a preferred embodiment of the present utility model, a spacer is further included, the spacer is disposed between the first elastic member and the second elastic member, and one end of the second housing can abut against the spacer.
[0014] In a preferred embodiment of the present utility model, the spacer includes a spacer washer disposed between the first elastic member and the second elastic member.
[0015] In a preferred embodiment of the present utility model, the actuator includes an end portion and a rod portion connected to the end portion, the first elastic component is disposed between one side end face of the end portion and the first housing, the second elastic component is disposed between the other end face of the end portion and the second housing, and a channel for the rod portion to pass through is provided on the first elastic component.
[0016] In a preferred embodiment of the present utility model, the second elastic component includes a fourth elastic member, the fourth elastic member is disposed between the actuator and the second housing, and the stiffness of the fourth elastic member is less than that of the first elastic member.
[0017] In a preferred embodiment of the present utility model, the second elastic member includes a second spring disposed between the actuator and the second housing. The second spring has a fourth preset stiffness, and the fourth preset stiffness is less than the stiffness of the first elastic assembly.
[0018] In a preferred embodiment of the present utility model, a limiting structure is further included and disposed between the second housing and the actuator. The second spring is disposed between the second housing and the actuator through the limiting structure.
[0019] In a preferred embodiment of the present utility model, the limiting structure includes a first limiting portion disposed on the second housing and a second limiting portion disposed on the actuator. The second spring connects the first limiting portion and the second limiting portion.
[0020] In a preferred embodiment of the present utility model, one of the first limiting portion and the second limiting portion is a limiting groove, and the other of the first limiting portion and the second limiting portion is a limiting block.
[0021] In a preferred embodiment of the present utility model, the first housing includes a spring seat which is cylindrically arranged. The second housing includes a piston which is cylindrically arranged. The piston is slidably inserted into the spring seat, and an installation cavity is formed between the spring seat and the piston.
[0022] In a preferred embodiment of the present utility model, a sliding connection structure is further included and disposed between the first housing and the second housing. The sliding connection structure can limit the movement stroke of the second housing along the axial direction of the first housing.
[0023] In a preferred embodiment of the present utility model, the sliding connection structure includes a first connecting member slidably sleeved on the first housing and a second connecting member connected to the second housing. The first connecting member and the second connecting member are detachably connected.
[0024] The present utility model further provides a wire control braking system, including the aforementioned pedal feel simulator.
[0025] The technical solution of the present utility model has the following remarkable beneficial effects:
[0026] When the pedal feel simulator of the present utility model is in use, by movably inserting the first housing and the second housing, the first housing and the second housing can move towards each other to compress the elastic simulation mechanism. The elastic simulation mechanism can generate resistance to simulate the braking feel, realizing the decoupling of the braking pedal input and the frictional force power, so as to better meet the use requirements of the vehicle.
[0027] The elastic simulation mechanism of the present utility model utilizes the cooperation of the first elastic component and the second elastic component. When the first housing and / or the second housing is compressed, the damping of the first elastic component and the second elastic component can be controllably superimposed in sequence, so that the stiffness curve of the pedal feel simulator changes non-linearly to simulate different braking feelings in different stages, with better simulation flexibility, thereby improving the user's braking experience.
[0028] Moreover, when the first elastic component and / or the second elastic component is composed of elastic members with different stiffnesses, by controlling the stiffness and types of the respective elastic members, it is thus possible to avoid using rubber elastic members. On the one hand, the problem that the stiffness of rubber elastic members changes significantly at different temperatures is solved, improving the simulation effect; on the other hand, it also avoids interference to other surrounding components caused by the deformation of rubber elastic members, improves the durability, and is beneficial to improving the service life of the pedal feel simulator. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0030] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present utility model in any way. Additionally, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to assist in the understanding of the present utility model, rather than specifically defining the shapes and proportional dimensions of the components of the present utility model. Those skilled in the art can, under the teachings of the present utility model, select various possible shapes and proportional dimensions according to specific circumstances to implement the present utility model.
[0031] Figure 1 It is a side cross-sectional view of an embodiment of the pedal feel simulator described in the present utility model.
[0032] Reference numerals of the above drawings:
[0033] 100, the first housing;
[0034] 200, the second housing;
[0035] 300, the elastic simulation mechanism; 310, the actuator; 311, the end; 312, the rod; 320, the first elastic component; 321, the first elastic member; 322, the second elastic member; 3221, the first disc spring group; 3222, the second disc spring group; 330, the second elastic component; 331, the fourth elastic member;
[0036] 400. Displacement limiter;
[0037] 500. Spacer;
[0038] 600. Position limiting structure; 610. First position limiting part; 620. Second position limiting part;
[0039] 700. Sliding connection structure; 710. First connecting part; 720. Second connecting part. Detailed implementation mode
[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0041] Embodiment 1
[0042] Please refer to Figure 1 As shown, in the embodiment of the present invention, a pedal feel simulator is provided. The pedal feel simulator at least includes a first housing 100, a second housing 200, and an elastic simulation mechanism 300. The second housing 200 is movably inserted into the first housing 100, and an installation cavity is formed between the second housing 200 and the first housing 100. The elastic simulation mechanism 300 includes an actuator 310 movably disposed in the installation cavity, a first elastic component 320 disposed between the actuator 310 and the first housing 100, and a second elastic component 330 disposed between the actuator 310 and the second housing 200. The stiffness of the first elastic component 320 is greater than that of the second elastic component 330.
[0043] Overall, when the pedal feel simulator is in use, by movably inserting the first housing 100 and the second housing 200, the first housing 100 and the second housing 200 can move towards each other to compress the elastic simulation mechanism 300. The elastic simulation mechanism 300 can generate resistance to simulate the braking feel, realizing the decoupling of the braking pedal input and the frictional force, so as to better meet the use needs of the vehicle.
[0044] Moreover, the elastic simulation mechanism 300 of the present invention uses the first elastic component 320 and the second elastic component 330 in cooperation. When the first housing 100 and / or the second housing 200 is compressed, the damping of the first elastic component 320 and the second elastic component 330 can be controllably superimposed in sequence, so that the stiffness curve of the pedal feel simulator changes non-linearly to simulate different braking feels in different stages, with better simulation flexibility, thereby improving the user's braking experience.
[0045] Moreover, when the first elastic component 320 and / or the second elastic component 330 are composed of elastic members with different stiffnesses, by controlling the stiffness and type of each elastic member, it is possible to avoid using rubber elastic members. On the one hand, this solves the problem that the stiffness of rubber elastic members changes significantly at different temperatures, improving the simulation effect; on the other hand, it also avoids interference caused by the deformation of rubber elastic members to other surrounding components, improves the durability, and is beneficial to improving the service life of this pedal feel simulator.
[0046] In an embodiment of the present invention, the first elastic component 320 includes a first elastic member 321 disposed between the actuator 310 and the first housing 100, and a second elastic member 322 disposed between the first elastic member 321 and the first housing 100. The stiffness of the first elastic member 321 is less than the stiffness of the second elastic member 322.
[0047] By making the stiffness of the first elastic member 321 less than the stiffness of the second elastic member 322, when the first elastic member 321 and the second elastic member 322 are simultaneously compressed, the first elastic member 321 will deform prior to the second elastic member 322 to provide braking resistance.
[0048] Specifically, the first elastic member 321 includes a first spring. The first spring is disposed between the actuator 310 and the second elastic member 322. The first spring has a first preset stiffness, and the first preset stiffness is less than the stiffness of the second elastic member 322.
[0049] Designers can adjust the magnitude of the first preset stiffness according to the usage requirements, and no specific numerical limit is set here.
[0050] In an embodiment of the present invention, the second elastic member 322 includes a first set of disc springs 3221. The first set of disc springs 3221 is disposed between the first elastic member 321 and the first housing 100. The first set of disc springs 3221 has a second preset stiffness, and the second preset stiffness is greater than the stiffness of the first elastic member 321.
[0051] Designers can adjust the specific structure of the first set of disc springs 3221 and the magnitude of the second preset stiffness according to the usage requirements, and no specific limit is set here. Preferably, the first set of disc springs 3221 includes at least one first disc spring. Among them, the second preset stiffness is the stiffness of the first disc spring.
[0052] Furthermore, the second elastic member 322 further includes a second set of disc springs 3222. The second set of disc springs 3222 is disposed between the first set of disc springs 3221 and the first housing 100. The second set of disc springs 3222 has a third preset stiffness, and the third preset stiffness is greater than the second preset stiffness.
[0053] Preferably, the second disc spring group 3222 includes a plurality of second disc springs. Moreover, the first disc spring group 3221 and the second disc spring group 3222 can be arranged concentrically. Among them, the third preset stiffness is the stiffness of the second disc spring.
[0054] By making the third preset stiffness greater than the second preset stiffness, when compressed, the first disc spring group 3221 will deform prior to the second disc spring group 3222 to provide braking damping.
[0055] In an embodiment of the present utility model, the second elastic component 330 includes a fourth elastic member 331. The fourth elastic member 331 is disposed between the actuator 310 and the second housing 200, and the stiffness of the fourth elastic member 331 is less than the stiffness of the first elastic member 321.
[0056] By disposing the fourth elastic member 331 between the actuator 310 and the second housing 200, when the second housing 200 is compressed, the second housing 200 will press down the fourth elastic member 331, and at the same time the third elastic member will transmit the pressure to the first elastic component 320 through the actuator 310.
[0057] Since the stiffness of the fourth elastic member 331 is less than the stiffness of the first elastic member 321, the fourth elastic member 331 will deform prior to the first elastic member 321 to generate braking resistance.
[0058] Specifically, the second elastic member 322 includes a second spring. The second spring is disposed between the actuator 310 and the second housing 200. The second spring has a fourth preset stiffness, and the fourth preset stiffness is less than the stiffness of the first elastic component 320.
[0059] Designers can adjust the magnitude of the fourth preset stiffness according to the usage requirements, and no specific numerical limit is set here.
[0060] In an embodiment of the present utility model, a displacement limiter 400 is further included. The displacement limiter 400 is disposed between the first disc spring group 3221 and the second disc spring group 3222.
[0061] By disposing the displacement limiter 400 between the first disc spring group 3221 and the second disc spring group 3222, when the first disc spring group 3221 and the second disc spring group 3222 are compressed, the displacement limiter 400 can reduce or avoid crosstalk between the first disc spring group 3221 and the second disc spring group 3222, thereby helping to improve the usage stability of the first elastic component 320.
[0062] Designers can adjust the specific structure of the displacement limiter 400 according to the usage requirements. For example, the displacement limiter 400 includes a stop washer disposed between the first disc spring group 3221 and the second disc spring group 3222, and no specific limit is set here.
[0063] In an embodiment of the present utility model, it further includes a spacer 500. The spacer 500 is disposed between the first elastic member 321 and the second elastic member 322, and one end of the second housing 200 can abut against the spacer 500.
[0064] Specifically, the spacer 500 includes a spacer washer disposed between the first elastic member 321 and the second elastic member 322. By arranging the spacer washer between the first elastic member 321 and the second elastic member 322, the spacer washer can better support the first elastic member 321, and the spacer washer can also evenly transfer the pressure on the first elastic member 321 to the second elastic member 322, improving the pressure uniformity.
[0065] In an embodiment of the present utility model, the actuator 310 includes an end portion 311 and a rod portion 312 connected to the end portion 311. The first elastic assembly 320 is disposed between one side end face of the end portion 311 and the first housing 100, and the second elastic assembly 330 is disposed between the other end face of the end portion 311 and the second housing 200. A channel for the rod portion 312 to pass through is provided on the first elastic assembly 320.
[0066] Specifically, the first elastic member 321 includes a first spring, and the first spring is sleeved on the rod portion 312. Moreover, the second elastic member 322 includes a first disc spring group 3221 and a second disc spring group 3222. The central holes of the first disc spring group 3221 and the second disc spring group 3222 form the channel, and the first disc spring group 3221 and the second disc spring group 3222 can also be sleeved on the rod portion 312.
[0067] By the cooperation between the rod portion 312 and the inner wall of the first housing 100, it is beneficial to improve the installation stability of the first spring, the first disc spring group 3221 and the second disc spring group 3222.
[0068] Of course, designers can adjust the specific structure of the actuator 310 according to the usage requirements, and no specific limitation is made here.
[0069] In an embodiment of the present utility model, it further includes a limiting structure 600 disposed between the second housing 200 and the actuator 310. The second spring is disposed between the second housing 200 and the actuator 310 through the limiting structure 600.
[0070] The limiting structure 600 can play a role in limiting the second spring, avoiding the second spring from moving around during use, thereby helping to improve the use stability of the pedal feel simulator.
[0071] Specifically, the limiting structure 600 includes a first limiting portion 610 disposed on the second housing 200 and a second limiting portion 620 disposed on the actuator 310. The second spring connects the first limiting portion 610 and the second limiting portion 620.
[0072] The designer can adjust the specific structures of the first limiting part 610 and the second limiting part 620 according to the usage requirements, and no specific limitation is made here. For example, one of the first limiting part 610 and the second limiting part 620 is a limiting groove, and the other of the first limiting part 610 and the second limiting part 620 is a limiting block.
[0073] Preferably, a limiting groove is provided on the end 311 of the actuator 310, one end of the second spring is inserted into the limiting groove, a limiting block protrudes on the second housing 200, and the other end of the second spring is sleeved on the limiting block.
[0074] In a preferred embodiment of the present invention, the pedal feel simulator includes a first spring, a second spring, a first disc spring group 3221 and a second disc spring group 3222. The specific braking simulation process of the pedal feel simulator is as follows:
[0075] The first stage: Apply pressure to the second housing 200, and the second housing 200 compresses the second spring downward, causing the second spring to be deformed under pressure until the second housing 200 abuts against the actuator 310;
[0076] The second stage: The second housing 200 continues to press down the actuator 310, and the actuator 310 compresses the first spring downward, causing the first spring to be deformed under pressure until the second housing 200 abuts against the spacer 500;
[0077] The third stage: The second housing 200 continues to press down the spacer 500, and the spacer 500 compresses the first disc spring group 3221 downward, causing the first disc spring group 3221 to be deformed under pressure until the first disc spring group 3221 is completely compressed onto the displacement limiter;
[0078] The fourth stage: The second housing 200 continues to press down, driving the first disc spring group 3221 to compress the displacement limiter 400 downward, and the displacement limiter compresses the second disc spring group 3222 downward, causing the second disc spring group 3222 to be deformed under pressure, thereby providing the final displacement.
[0079] Wherein, during the compression process of the first spring, the second spring, the first disc spring group 3221 and the second disc spring group 3222, the stiffness between the components can be superimposed in an orderly manner, so that the pedal feel simulator can simulate different stiffness curves according to the design requirements and has a better braking simulation effect.
[0080] In the embodiment of the present invention, the first housing 100 includes a spring seat, the spring seat is arranged in a cylindrical shape, the second housing 200 includes a piston, the piston is arranged in a cylindrical shape, the piston is slidably inserted into the spring seat, and an installation cavity is formed between the spring seat and the piston.
[0081] Of course, in other feasible embodiments, the designer can adjust the specific shape and structure of the first housing 100 and the second housing 200 according to the use, and no specific limitation is made here.
[0082] Since the second housing 200 may be pushed out of the first housing 100 under the elastic force of the elastic simulation mechanism 300 after the first housing 100 and the second housing 200 are movably inserted.
[0083] In order to prevent the second housing 200 from detaching from the first housing 100, in the embodiment of the present utility model, a sliding connection structure 700 is further included between the first housing 100 and the second housing 200, and the sliding connection structure 700 can limit the movement stroke of the second housing 200 along the axial direction of the first housing 100.
[0084] Specifically, the sliding connection structure 700 includes a first connecting member 710 slidably sleeved on the first housing 100 and a second connecting member 720 connected to the second housing 200, and the first connecting member 710 and the second connecting member 720 are detachably connected.
[0085] Furthermore, a protruding limiting shoulder is provided on the outer wall of the first housing 100, and the first connecting member 710 can be axially limited along the first housing 100 by the limiting shoulder to prevent the first connecting member 710 from detaching from the first housing 100 along with the second housing 200.
[0086] The designer can adjust the specific structure of the first connecting member 710 and the second connecting member 720 according to the use requirements, and no specific limitation is made here.
[0087] For example, the first connecting member 710 includes a screw sleeve slidably sleeved on the first housing 100, and the second connecting member 720 includes a cover body covering the second housing 200.
[0088] Moreover, the cover body and the screw sleeve can be connected by threads, or the cover body and the screw sleeve can be detachably clamped, or the cover body and the screw sleeve can also be detachably connected by a connecting member, and no specific limitation is made here.
[0089] Of course, after the cover body and the screw sleeve are installed, the cover body and the screw sleeve can also be fixedly connected, and no specific limitation is made here.
[0090] In the embodiment of the present utility model, a sealing structure is provided between the cover body and the first housing 100 and / or between the cover body and the second housing 200.
[0091] The sealing structure can play an isolation role to prevent impurities and water from entering the installation cavity and polluting the elastic simulation mechanism 300. The designer can adjust the specific structure of the sealing structure according to the use requirements, such as a sealing ring, etc., and no specific limitation is made here.
[0092] Embodiment 2
[0093] In an embodiment of the present utility model, a wire control braking system is provided. The wire control braking system includes the pedal feel simulator described in Embodiment 1. The specific structure, working principle and beneficial effects of the pedal feel simulator are the same as those described in Embodiment 1, and will not be elaborated here. By using the pedal feel simulator, the wire control braking system can better simulate different braking feelings, improve the braking experience of users, and does not require the use of rubber elastic parts, thus having a longer service life.
[0094] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of" describing a combination shall include the identified elements, components, parts or steps and other elements, components, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combinations of elements, components, parts or steps herein also contemplates embodiments consisting essentially of these elements, components, parts or steps. By using the term "may" herein, it is intended to indicate that any attribute described as "may" included is optional. A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step can be divided into separate multiple elements, components, parts or steps. The disclosure of "a" or "an" used to describe an element, component, part or step does not mean to exclude other elements, components, parts or steps.
[0095] Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the present utility model, and the purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly. However, the protection scope of the present utility model cannot be limited thereby. All equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A pedal feel simulator, characterized in that: include: a first shell; A second shell, the second shell being movably plugged into the first shell, and a mounting cavity being formed between the second shell and the first shell; An elastic simulation mechanism includes an actuator movably disposed in the mounting cavity, a first elastic component disposed between the actuator and the first shell, and a second elastic component disposed between the actuator and the second shell, wherein the stiffness of the first elastic component is greater than the stiffness of the second elastic component.
2. The pedal feel simulator according to claim 1, characterized in that: The first elastic component includes a first elastic member disposed between the actuator and the first shell, and a second elastic member disposed between the first elastic member and the first shell, and the rigidity of the first elastic member is smaller than the rigidity of the second elastic member.
3. The pedal feel simulator according to claim 2, characterized in that: The first elastic member includes a first spring, the first spring is arranged between the actuator and the second elastic member, the first spring has a first preset stiffness, and the first preset stiffness is smaller than the stiffness of the second elastic member.
4. The pedal feel simulator according to claim 2, characterized in that: The second elastic member includes a first disc spring group, the first disc spring group is arranged between the first elastic member and the first shell, the first disc spring group has a second preset stiffness, and the second preset stiffness is greater than the stiffness of the first elastic member.
5. The pedal feel simulator according to claim 4, characterized in that: The second elastic member also includes a second disc spring group, which is arranged between the first disc spring group and the first shell, and the second disc spring group has a third preset stiffness, which is greater than the second preset stiffness.
6. The pedal feel simulator according to claim 5, characterized in that: It also includes a displacement limiter, which is arranged between the first disc spring group and the second disc spring group.
7. The pedal feel simulator according to claim 2, wherein: It also includes an isolating member, which is disposed between the first elastic member and the second elastic member, and one end of the second shell can abut against the isolating member.
8. The pedal feel simulator according to claim 7, characterized in that: The isolation member includes an isolation gasket disposed between the first elastic member and the second elastic member.
9. The pedal feel simulator according to claim 1, wherein: The actuator includes an end and a rod connected to the end, the first elastic component is arranged between one end surface of the end and the first shell, the second elastic component is arranged between the other end surface of the end and the second shell, and the first elastic component is provided with a channel for the rod to pass through.
10. The pedal feel simulator according to claim 2, wherein: The second elastic component includes a fourth elastic member, the fourth elastic member is arranged between the actuator and the second shell, and the rigidity of the fourth elastic member is smaller than the rigidity of the first elastic member.
11. The pedal feel simulator according to claim 10, characterized in that: The second elastic member includes a second spring, the second spring is arranged between the actuator and the second shell, and the second spring has a fourth preset stiffness, and the fourth preset stiffness is smaller than the stiffness of the first elastic component.
12. The pedal feel simulator according to claim 11, characterized in that: It also includes a limiting structure arranged between the second shell and the actuator, and the second spring is arranged between the second shell and the actuator through the limiting structure.
13. The pedal feel simulator according to claim 12, wherein: The limiting structure includes a first limiting portion provided on the second housing, and a second limiting portion provided on the actuator, and the second spring connects the first limiting portion and the second limiting portion.
14. The pedal feel simulator according to claim 13, wherein: One of the first limiting portion and the second limiting portion is a limiting groove, and the other of the first limiting portion and the second limiting portion is a limiting block.
15. The pedal feel simulator according to claim 1, wherein: The first housing includes a spring seat which is cylindrically arranged. The second housing includes a piston which is cylindrically arranged. The piston is slidably inserted in the spring seat. The mounting cavity is formed between the spring seat and the piston.
16. The pedal feel simulator according to claim 1, wherein: It also includes a sliding connection structure arranged between the first shell and the second shell, and the sliding connection structure can limit the movement stroke of the second shell along the axial direction of the first shell.
17. The pedal feel simulator according to claim 16, wherein: The sliding connection structure includes a first connection member slidably mounted on the first shell, and a second connection member connected to the second shell, and the first connection member and the second connection member are detachably connected.
18. A brake-by-wire system, characterized in that: Comprising a pedal feel simulator as claimed in any one of claims 1 to 17.