Pedal feeling simulator and vehicle

Abstract

The pedal feeling simulator comprises a valve body, a force feedback component, a stop piece and a displacement sensor, the valve body comprises a valve cavity and an opening which communicate with each other, the force feedback component comprises a piston and a first elastic assembly, the piston is slidably connected to the valve cavity, the first elastic assembly is located in the valve cavity, and the stop piece is located in the valve cavity. The stop piece comprises a housing buckled to the opening, the housing is detachably installed on the valve body, at least part of the piston is located in the valve cavity in the state that the piston abuts against the interior of the housing, and the displacement sensor is installed on the part, extending into the housing, of the piston. According to the embodiment of the invention, the convenience of adjusting, maintaining and replacing parts such as the displacement sensor in the valve cavity can be improved, so that the pedal feeling simulator has relatively low maintenance cost.

Description

Technical Field

[0001] This application relates to the technical field of vehicle engineering, and in particular, to a pedal feel simulator and a vehicle. Background Art

[0002] The pedal feel simulator for commercial vehicles is a device specifically designed for large commercial vehicles such as trucks and buses. Generally, it includes a valve body and a force feedback component. Among them, the valve body is provided with a valve cavity for installing the force feedback component. During the process of a driver stepping on the pedal, the force feedback component is used to provide a preset feedback force to the driver according to the stepping depth of the pedal, so as to improve the driving experience of the driver.

[0003] Currently, during the assembly process of the pedal feel simulator, a snap ring needs to be installed between the inner wall of the valve cavity and the force feedback component to prevent the whole force feedback component from coming out of the valve cavity. Since the installation position of the snap ring is between the inner wall of the valve cavity and the force feedback component, that is, the assembled snap ring is in a difficult-to-reach position, it is difficult to disassemble the pedal feel simulator. Even during the disassembly process, the snap ring or the components around the snap ring may be damaged, which is not convenient for adjusting, maintaining, and replacing parts such as displacement sensors in the valve cavity, resulting in a high maintenance cost for the pedal feel simulator. Summary of the Utility Model

[0004] The embodiments of this application provide a pedal feel simulator and a vehicle, which can improve the convenience of adjusting, maintaining, and replacing parts in the valve cavity, so that the pedal feel simulator has a low maintenance cost.

[0005] In a first aspect, the embodiments of this application provide a pedal feel simulator, which includes: a valve body, including a communicating valve cavity and an opening; a force feedback component, including a piston and a first elastic component, the piston is slidably connected to the valve cavity, and the first elastic component is located in the valve cavity to provide an elastic force away from the valve cavity to the piston; a stop member, including a cover shell buckled to the opening, the cover shell is detachably installed on the valve body, and at least part of the piston is located in the valve cavity in a state where the piston abuts against the inside of the cover shell; a displacement sensor, installed on the part of the piston extending into the cover shell.

[0006] In some embodiments, the piston includes a first end portion located inside the cover shell. The outer periphery of the first end portion is fixedly connected with a positioning ring by an interference fit. A first annular groove is provided on the outer peripheral surface of the positioning ring, and the displacement sensor is embedded in the first annular groove; and / or, a limiting block is fixedly connected inside the cover shell, and the limiting block includes a limiting surface for abutting against the first end portion; and / or, the cover shell is installed on the valve body by a bolt connection; and / or, the stop member further includes an annular adapter plate, the inner periphery of the adapter plate is fixedly installed on the cover shell and / or the valve body, and the outer periphery of the adapter plate is used for installation on a vehicle.

[0007] In some embodiments, the force feedback component further includes a push rod. A through hole for avoiding the push rod is provided in the middle of the housing. The push rod includes a second end and a third end connected to the piston. The second end is located on the side of the through hole facing away from the valve body.

[0008] In some embodiments, a first accommodation cavity is provided on the end face of the piston facing the through hole. The first accommodation cavity includes a first bottom surface and a first inner peripheral surface annularly arranged around the first bottom surface. There is a gap between the push rod and the first inner peripheral surface. A second elastic component is installed in the first accommodation cavity to provide an elastic force for pressing the third end against the first bottom surface.

[0009] In some embodiments, a snap ring is clamped on the first inner peripheral surface. The second elastic component includes a first spring seat, a first elastic member, and a second spring seat. One end of the first spring seat facing away from the first elastic member abuts against the snap ring. One end of the second spring seat facing away from the first elastic member abuts against the third end. The first elastic member is used to provide an elastic force for separating the first spring seat and the second spring seat; and / or, a first arc surface is provided on one side of the third end facing the first bottom surface, and a second arc surface adapted to the first arc surface is provided on the first bottom surface; and / or, an annular shock-absorbing sleeve is embedded in the inner periphery of the through hole, and there is a gap between the annular shock-absorbing sleeve and the push rod.

[0010] In some embodiments, the piston includes a fourth end located in the valve cavity. A first end face facing the opening is provided in the valve cavity. The first elastic component includes: a second elastic member, and a plurality of second elastic members are connected in series between the fourth end and the first end face, and the stiffness of each second elastic member is the same or different.

[0011] In some embodiments, the first elastic component includes two second elastic members with different elasticities. The first elastic component further includes: a third spring seat, installed on the fourth end, and a first sliding groove is provided in the middle of the third spring seat; a push rod, one end of the push rod is slidably connected to the first sliding groove; a fourth spring seat, fixedly installed on the push rod, and both second elastic members are sleeved on the push rod, and one of the second elastic members is installed between the third spring seat and the fourth spring seat, and the other second elastic member is installed between the fourth spring seat and the first end face.

[0012] In some embodiments, the valve cavity includes a second sliding groove, and the other end of the push rod is slidably connected to the second sliding groove. The second sliding groove is located on the side of the first end face facing away from the opening. The first elastic component further includes a shock-absorbing pad, and the shock-absorbing pad is installed at the bottom of the second sliding groove and / or the first end face; and / or, a second end face is provided between the first end face and the opening in the valve cavity. The second end face is annular, and the inner diameter of the second end face is smaller than the outer diameter of the piston.

[0013] In some embodiments, a plurality of spaced seals are embedded at a position in the valve cavity close to the opening, and the inner peripheral surface of the seal tightly abuts against the piston.

[0014] In a second aspect, the present application also provides a vehicle, comprising the above-mentioned pedal feel simulator, which is installed in a cab of the vehicle.

[0015] An embodiment of the present application provides a pedal feel simulator and a vehicle, wherein the pedal feel simulator includes a valve body, a force feedback component, a stopper and a displacement sensor, wherein the valve body includes a connected valve cavity and an opening, the force feedback component includes a piston and a first elastic component, the piston is slidably connected to the valve cavity, the first elastic component is located in the valve cavity, the stopper includes a cover shell that is snapped into the opening, the cover shell is detachably mounted on the valve body, and when the piston is abutting against the cover shell, at least part of the piston is located in the valve cavity to prevent the piston from falling out of the valve cavity as a whole, and the displacement sensor is installed on the part of the piston extending into the cover shell. Compared with installing a retaining ring between the inner wall of the valve cavity and the piston, in the present technical solution, the stopper is located on the side of the opening facing away from the valve cavity, and there is a relatively large operating space during the installation and removal of the stopper, which is convenient for operation, reduces the risk of damaging the parts around the stopper during the removal of the stopper, and improves the convenience of adjusting, maintaining and replacing the parts in the valve cavity, so that the pedal feel simulator has a lower maintenance cost; in addition, the existing displacement sensor is arranged in the valve cavity and around the valve body. In the present technical solution, the displacement sensor is located in the cover, and the cover can protect the displacement sensor. The displacement sensor can be exposed by simply removing the cover, which further improves the convenience of calibrating, maintaining and replacing the displacement sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic diagram of the structure of a pedal feel simulator provided in some embodiments of the present application;

[0018] Figure 2 A schematic diagram of the internal structure of a valve body provided in some embodiments of the present application;

[0019] Figure 3 A schematic diagram of the internal structure of a pedal feel simulator provided in some embodiments of the present application;

[0020] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of area A in the middle;

[0021] Figure 5 A schematic diagram of the structure of a push rod provided in some embodiments of the present application;

[0022] Figure 6Schematic diagram of the internal structure of the piston provided by some embodiments of the present application.

[0023] In the figure:

[0024] 1. Valve body; 11. Opening; 12. Valve cavity; 121. Third annular groove; 122. Second end face; 123. First end face; 124. Second sliding groove;

[0025] 2. Stopper; 21. Annular shock-absorbing sleeve; 22. Housing; 23. Limiting block; 231. Limiting surface; 24. Adapter plate;

[0026] 3. Force feedback component; 31. Push rod; 311. Second end; 312. Third end; 32. Piston; 321. First end; 322. First accommodating cavity; 323. First inner peripheral surface; 324. Second annular groove; 325. First bottom surface; 326. Second accommodating cavity; 327. Fourth end; 33. Displacement sensor; 34. Positioning ring; 341. First annular groove; 35. First elastic component; 351. Shock-absorbing pad; 352. Third spring seat; 3521. First sliding groove; 353. Second elastic member; 354. Fourth spring seat; 355. Thumb rod; 3551. Slide block; 36. Second elastic component; 361. First spring seat; 362. First elastic member; 363. Second spring seat; 37. Circlip; 38. Sealing ring. Detailed implementation manners

[0027] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than limiting the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application.

[0028] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0029] Currently, during the assembly process of the pedal feel simulator, a circlip needs to be installed between the inner wall of the valve cavity and the force feedback component to prevent the entire force feedback component from disengaging from the valve cavity. It has been found through research that since the installation position of the circlip is between the inner wall of the valve cavity and the force feedback component, that is, the assembled circlip is in a difficult-to-reach position, the disassembly of the pedal feel simulator is relatively difficult, and even the circlip or the components around the circlip may be damaged during the disassembly process, making it inconvenient to adjust, maintain, and replace the parts inside the valve cavity, resulting in a high maintenance cost for the pedal feel simulator.

[0030] To solve the problems of the prior art, the embodiments of the present application provide a pedal feel simulator and a vehicle. The following will be introduced in detail with reference to the accompanying drawings.

[0031] Figure 1 Structural schematic diagram of the pedal feel simulator provided by some embodiments of the present application; Figure 2 Internal structural schematic diagram of the valve body provided by some embodiments of the present application; Figure 3 Internal structural schematic diagram of the pedal feel simulator provided by some embodiments of the present application.

[0032] Please refer to Figures 1 to 3The present application provides a pedal feel simulator, comprising a valve body 1, a force feedback component 3, a stopper 2, and a displacement sensor 33. The valve body 1 includes a valve cavity 12 and an opening 11, which are interconnected. The force feedback component 3 includes a piston 32 and a first elastic component 35. The piston 32 is slidably connected to the valve cavity 12. The first elastic component 35 is located within the valve cavity 12 to provide an elastic force to move the piston 32 away from the valve cavity 12. The stopper 2 includes a cover 22 that snaps into the opening 11. The cover 22 is removably mounted on the valve body 1. It is understood that the cover 22 can be removably mounted on the valve body 1 by means of a snap connection, a bolt connection, or the like. When the piston 32 is in contact with the cover 22, at least a portion of the piston 32 is located within the valve cavity 12, thereby preventing the entire piston 32 from being removed from the valve cavity 12. The displacement sensor 33 is mounted on the portion of the piston 32 that extends into the cover 22. The displacement sensor 33 is used to provide feedback to the vehicle control system regarding the pedal's depression depth.

[0033] It can be understood that the piston 32 is used to be connected to the pedal. When the driver steps on the pedal to push the piston 32 toward the bottom of the valve chamber 12, the elastic force provided by the first elastic component 35 to the piston 32 can be fed back to the driver through the piston 32 and the pedal, so that the driver can get a corresponding pedal feel when stepping on the pedal.

[0034] Compared with installing the retaining spring 37 between the inner wall of the valve cavity 12 and the piston 32, in the present technical solution, the stopper 2 is located on the side of the opening 11 facing away from the valve cavity 12, and has a relatively large operating space during the installation and removal of the stopper 2, which is convenient for operation, reduces the risk of damaging the surrounding components of the stopper 2 during the removal of the stopper 2, and improves the convenience of adjusting, maintaining and replacing the parts in the valve cavity 12. The damaged parts in the valve cavity 12 can be replaced separately, so that the pedal feel simulator has a lower maintenance cost; in addition, the existing displacement sensor is arranged in the valve cavity and around the valve body. In the present technical solution, the cover 22 can protect the internal displacement sensor 33, and the displacement sensor 33 can be exposed by only removing the cover 22, which further improves the convenience of calibrating, maintaining and replacing the displacement sensor 33.

[0035] Figure 6 Schematic diagram of the internal structure of the piston 32 provided in some embodiments of the present application.

[0036] like Figure 3 and Figure 6 As shown, in some embodiments, the piston 32 includes a first end portion 321 located within the housing 22, and the outer periphery of the first end portion 321 is fixedly connected to a positioning ring 34 by interference fit. The outer peripheral surface of the positioning ring 34 is provided with a first annular groove 341, and the displacement sensor 33 is embedded in the first annular groove 341, which can enable the displacement sensor 33 to achieve a higher installation accuracy.

[0037] As Figure 3 shown, in some embodiments, a limiting block 23 is fixedly connected inside the housing 22. The limiting block 23 includes a limiting surface 231 for abutting against the first end portion 321. The limiting surface 231 is used to define the limit position of the first end portion 321 extending out of the valve cavity 12. During the development of the pedal feel simulator, designers can adjust the specific position of the limiting block 23 according to actual needs. On the premise of relatively low development cost, the limit position of the first end portion 321 extending out of the valve cavity 12 can meet the requirements.

[0038] In some embodiments, the housing 22 is mounted on the valve body 1 by means of bolt connection, which facilitates the installation and disassembly of the housing 22. Moreover, in the state where the housing 22 is mounted on the valve body 1 by means of bolt connection, a relatively high connection strength can be achieved.

[0039] As Figure 1 and Figure 3 shown, in some embodiments, the stop member 2 further includes an annular adapter plate 24. The inner circumference of the adapter plate 24 is fixedly installed on the housing 22 and / or the valve body 1. The outer circumference of the adapter plate 24 is used to be mounted on a vehicle. Different adapter plates 24 can be replaced to adapt to vehicle cabs with different installation forms, so that the pedal feel simulator as a whole has strong versatility and can reduce the development cost of manufacturers.

[0040] Figure 5 FIG. is a schematic structural view of the push rod 31 provided in some embodiments of the present application.

[0041] As Figure 3 ]>and Figure 5 shown, in some embodiments, the force feedback component 3 further includes a push rod 31. A through hole for avoiding the push rod 31 is provided in the middle of the housing 22. The push rod 31 includes a second end portion 311 and a third end portion 312 connected to the piston 32. The second end portion 311 is located on the side of the through hole facing away from the valve body 1. The second end portion 311 is used to be connected to a pedal. That is, the piston 32 is indirectly connected to the pedal through the push rod 31. When the driver steps on the pedal, the force is sequentially transmitted to the first elastic component 35 through the push rod 31 and the piston 32. At the same time, the elastic force provided by the first elastic component 35 to the piston 32 can be sequentially fed back to the driver through the piston 32, the push rod 31 and the pedal, so that the driver can obtain a corresponding pedal feel during the process of stepping on the pedal.

[0042] Figure 4 FIG. is Figure 3 an enlarged structural view of area A in

[0043] As Figure 3 、 Figure 4 and Figure 6As shown, in some embodiments, a first receiving cavity 322 is provided on the end face of the piston 32 facing the through hole. The first receiving cavity 322 includes a first bottom face 325 and a first inner peripheral face 323 that surrounds the first bottom face 325. It can be understood that the end face of the piston 32 facing the through hole is located at the first end 321; the first bottom face 325 is located at the bottom of the first receiving cavity 322. There is a gap between the push rod 31 and the first inner peripheral face 323, such that the push rod 31 can swing slightly relative to the first inner peripheral face 323. A second elastic component 36 is installed in the first receiving cavity 322 to provide an elastic force that presses against the first bottom face 325 to the third end 312. During the process of the piston 32 moving in the direction close to the push rod 31, it can prevent the push rod 31 from detaching from the first bottom face 325 due to inertia, and further can prevent a sense of jerk from being generated due to the gap between the third end 312 and the first bottom face 325 during the process of the driver stepping on the pedal again.

[0044] As Figure 3 and Figure 4 shown, in some embodiments, a snap ring 37 is clamped to the first inner peripheral face 323. The second elastic component 36 includes a first spring seat 361, a first elastic member 362, and a second spring seat 363. One end of the first spring seat 361 facing away from the first elastic member 362 abuts against the snap ring 37, and one end of the second spring seat 363 facing away from the first elastic member 362 abuts against the third end 312. The first elastic member 362 is used to provide an elastic force that separates the first spring seat 361 and the second spring seat 363. On the one hand, both the first spring seat 361 and the second spring seat 363 are provided with limit grooves for installing the first elastic member 362, which is convenient for installing the first elastic member 362 and can improve the overall structural stability of the pedal feel simulator; on the other hand, since the second elastic component 36 as a whole is not easily damaged, there is no need to consider the later maintenance of the second elastic component 36. The second elastic component 36 as a whole is limited by the snap ring 37, and the structure is simple.

[0045] As Figure 6 shown, in some embodiments, the first inner peripheral face 323 is provided with a second annular groove 324, which is convenient for clamping the snap ring 37.

[0046] As Figure 3 and Figure 4 shown, in some embodiments, the first elastic member 362 is a spiral spring sleeved on the periphery of the push rod 31. By limiting the first elastic member 362 through the push rod 31, the overall structural stability of the pedal feel simulator can be further improved.

[0047] As Figures 3 to 5As shown, in some embodiments, a first arc surface is provided on one side of the third end portion 312 facing the first bottom surface 325, and a second arc surface adapted to the first arc surface is provided on the first bottom surface 325. During the small-amplitude swing of the push rod 31 relative to the piston 32, the first arc surface is in contact with the second arc surface, which can further reduce the risk of jerks during the process of the driver stepping on the pedal.

[0048] As Figure 3 shown, in some embodiments, an annular shock-absorbing sleeve 21 is embedded in the inner circumference of the through hole. There is a gap between the annular shock-absorbing sleeve 21 and the push rod 31. By providing the annular shock-absorbing sleeve 21, direct contact between the housing 22 and the push rod 31 can be avoided, thereby playing a certain protective role for the housing 22 and the push rod 31.

[0049] As Figures 2 to 4 shown, in some embodiments, the piston 32 includes a fourth end portion 327 located in the valve cavity 12. A first end surface 123 facing the opening 11 is provided in the valve cavity 12. The first elastic assembly 35 includes a second elastic member 353. A plurality of second elastic members 353 are connected in series between the fourth end portion 327 and the first end surface 123. The stiffness of each second elastic member 353 is the same or different. By adjusting the stiffness of each second elastic member 353 participating in the compression process at each stage of stepping on the pedal, different pedal feel curves can be generated, and the pedal feel required by different drivers when driving different types of commercial vehicles can be satisfied as much as possible.

[0050] As Figure 3 、 Figure 4 and Figure 6As shown, in some embodiments, the first elastic component 35 includes two second elastic members 353 with different elastic properties. The first elastic component 35 further includes a third spring seat 352, a push rod 355, and a fourth spring seat 354. Both the third spring seat 352 and the fourth spring seat 354 are provided with limit grooves for installing the second elastic member 353. The third spring seat 352 is installed on the fourth end portion 327. It can be understood that a second accommodation cavity 326 can be provided in the fourth end portion 327, and the third spring seat 352 can be embedded in the second accommodation cavity 326. In other embodiments, the third spring seat 352 can also be fixedly installed on the fourth end portion 327 in a threaded connection manner. A first sliding groove 3521 is provided in the middle of the third spring seat 352. One end of the push rod 355 is slidably connected to the first sliding groove 3521. It can be understood that a slider 3551 can be provided at one end of the push rod 355, so that the push rod 355 is slidably connected to the first sliding groove 3521 through the slider 3551. In other embodiments, the push rod 355 can also be directly slidably connected to the first sliding groove 3521. The fourth spring seat 354 is fixedly installed on the push rod 355. Both second elastic members 353 are sleeved on the push rod 355. One of the second elastic members 353 is installed between the third spring seat 352 and the fourth spring seat 354, and the other second elastic member 353 is installed between the fourth spring seat 354 and the first end face 123. On the one hand, by providing the push rod 355, the overall structural stability of the pedal feel simulator can be improved. During the design process, different pedal feel curves can be generated by adjusting the stiffness of the two second elastic members 353 or adjusting the position of the fourth spring seat 354 relative to the push rod 355, so as to meet the pedal feel requirements of different drivers when driving different types of commercial vehicles as much as possible. On the other hand, only one valve body 1 needs to be developed to be applicable to the vehicle cabs with different layout spaces, reducing the number of developed parts of the pedal feel simulator, thereby reducing costs. On the other hand, each part of the pedal feel simulator is a common product in the market, which can reduce the procurement pressure. On the other hand, since the inside of the pedal feel simulator is a dry structure, the overall pedal feel simulator has low requirements for sealing, which can reduce test costs such as sealing detection and will not affect driving due to sudden leakage of the sealing liquid of the pedal feel simulator during vehicle driving.

[0051] As Figure 2 and Figure 3As shown, in some embodiments, the valve cavity 12 includes a second chute 124, and the other end of the ejector rod 355 is slidably connected to the second chute 124. The second chute 124 is located on the side of the first end face 123 facing away from the opening 11. The ejector rod 355 cooperates with the second chute 124, which can further prevent the ejector rod 355 from skewing and improve the working stability of the ejector rod 355. The first elastic assembly 35 further includes a shock pad 351, and the shock pad 351 is installed at the bottom of the second chute 124 and / or the first end face 123. Specifically, in this embodiment, shock pads are installed at the bottom of the second chute 124 and the first end face 123. The shock pad 351 can protect the corresponding components, prevent direct contact between the fourth spring seat 354 and the first end face 123, and prevent direct contact between the ejector rod 355 and the bottom of the second chute 124. Moreover, since the shock pad has a certain elasticity, it can cooperate with the first elastic assembly 35 to generate a more diverse pedal feel curve to meet the pedal feel requirements of different drivers when driving different types of commercial vehicles as much as possible.

[0052] As Figure 2 and Figure 3 shown, in some embodiments, the valve cavity 12 is provided with a second end face 122 between the first end face 123 and the opening 11. The second end face 122 is annular, and the inner diameter of the second end face 122 is smaller than the outer diameter of the piston 32. The fourth end 327 contacts the second end face 122, which can define the limit position of the piston 32 extending into the valve cavity 12.

[0053] In some embodiments, the stiffness of the second elastic member 353 near the third spring seat 352 is greater than that of the second elastic member 353 far from the third spring seat 352. The working process of the pedal feel simulator when the driver continuously steps on the pedal is as follows: The push rod 31 drives the piston 32 and the third spring seat 352 to gradually move in the direction close to the first end face 123. The ejector rod 355 slides into the second chute 124. At the same time, the second elastic member 353 far from the third spring seat 352 is greatly compressed until the ejector rod 355 abuts against the corresponding shock pad 351 or until the fourth spring seat 354 abuts against the corresponding shock pad 351. The push rod 31 drives the piston 32 and the third spring seat 352 to continue to gradually move in the direction close to the first end face 123. The abutted shock pad 351 is compressed by the force. The ejector rod 355 slides into the first chute 3521. At the same time, the second elastic member 353 near the third spring seat 352 is greatly compressed until the fourth end 327 abuts against the second end face 122. This state is the limit position of the piston 32 extending into the valve cavity 12.

[0054] As Figures 2 to 4As shown, in some embodiments, a plurality of sealing rings 38 are embedded at positions of the valve cavity 12 close to the opening 11 and are distributed at intervals. The inner peripheral surface of the sealing ring 38 abuts tightly against the piston 32. Specifically, in this embodiment, a plurality of third annular grooves 121 are provided at positions of the valve cavity 12 close to the opening 11. The plurality of third annular grooves 121 are arranged in one-to-one correspondence with the plurality of sealing rings 38, and the outer periphery of the sealing ring 38 is embedded in the corresponding third annular groove 121. By providing the sealing ring 38, the risk of dust and other impurities entering the interior of the valve cavity 12 can be reduced, so as to reduce the wear occurring during the sliding of the piston 32 relative to the valve cavity 12, and further improve the working life of the pedal feel simulator.

[0055] In some embodiments, a lubricating grease is coated between the piston 32 and the inner wall of the valve cavity 12 to reduce the frictional resistance therebetween and further reduce the risk of jerks occurring when the driver steps on the pedal.

[0056] The embodiment of the present application further provides a vehicle, including the above-mentioned pedal feel simulator, and the pedal feel simulator is installed in the cab of the vehicle. Since the vehicle includes the pedal feel simulator in the above embodiment, it at least has all the beneficial effects brought by the above embodiment, which will not be elaborated herein one by one.

[0057] The above is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules and units can refer to the corresponding processes in the foregoing method embodiments, which will not be elaborated herein. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application.

Claims

1. A pedal feel simulator, characterized in that, Comprising: A valve body, including a valve cavity and an opening that communicate with each other; A force feedback component, including a piston and a first elastic component. The piston is slidably connected to the valve cavity, and the first elastic component is located within the valve cavity to provide an elastic force away from the valve cavity to the piston; A stopper, including a housing that is snap-fitted to the opening. The housing is detachably mounted to the valve body. In a state where the piston abuts against the inside of the housing, at least a part of the piston is located within the valve cavity; A displacement sensor, mounted on a part of the piston that extends into the housing.

2. The pedal feel simulator according to claim 1, wherein The piston includes a first end portion located within the housing. A positioning ring is fixedly connected to the outer periphery of the first end portion by an interference fit. A first annular groove is provided on the outer peripheral surface of the positioning ring, and the displacement sensor is embedded in the first annular groove; And / or, a limiting block is fixedly connected within the housing. The limiting block includes a limiting surface for abutting against the first end portion; And / or, the housing is mounted to the valve body by means of bolt connection; And / or, the stopper further includes an annular adapter plate. The inner periphery of the adapter plate is fixedly mounted to the housing and / or the valve body, and the outer periphery of the adapter plate is for mounting to a vehicle.

3. The pedal feel simulator according to claim 1, characterized in that, The force feedback component further includes a push rod. A through hole for avoiding the push rod is provided in the middle of the housing. The push rod includes a second end portion and a third end portion connected to the piston. The second end portion is located on a side of the through hole facing away from the valve body.

4. The pedal feel simulator according to claim 3, characterized in that, A first accommodation cavity is provided on the end surface of the piston facing the through hole. The first accommodation cavity includes a first bottom surface and a first inner peripheral surface that encircles the first bottom surface. There is a gap between the push rod and the first inner peripheral surface. A second elastic component is mounted within the first accommodation cavity to provide an elastic force for pressing the third end portion against the first bottom surface.

5. The pedal feel simulator according to claim 4, wherein A snap ring is clamped to the first inner peripheral surface. The second elastic component includes a first spring seat, a first elastic member, and a second spring seat. One end of the first spring seat facing away from the first elastic member abuts against the snap ring. One end of the second spring seat facing away from the first elastic member abuts against the third end portion. The first elastic member is used to provide an elastic force for separating the first spring seat and the second spring seat; And / or, a first arc surface is provided on a side of the third end portion facing the first bottom surface, and a second arc surface adapted to the first arc surface is provided on the first bottom surface; And / or, an annular shock-absorbing sleeve is embedded in the inner periphery of the through hole, and there is a gap between the annular shock-absorbing sleeve and the push rod.

6. The pedal feel simulator according to claim 1, characterized in that, The piston includes a fourth end portion located within the valve cavity. A first end surface facing the opening is provided within the valve cavity. The first elastic component includes: A second elastic member. A plurality of the second elastic members are connected in series between the fourth end portion and the first end surface, and the stiffness of each of the second elastic members is the same or different.

7. The pedal feel simulator according to claim 6, wherein The first elastic component includes two second elastic members with different elasticities. The first elastic component further includes: A third spring seat, mounted on the fourth end portion. A first sliding groove is provided in the middle of the third spring seat; A push rod, one end of which is slidably connected to the first sliding groove; The fourth spring seat is fixedly installed on the ejector rod, and both of the second elastic members are sleeved on the ejector rod. One of the second elastic members is installed between the third spring seat and the fourth spring seat, and the other second elastic member is installed between the fourth spring seat and the first end face.

8. The pedal feel simulator according to claim 7, wherein The valve cavity includes a second chute, and the other end of the ejector rod is slidably connected to the second chute. The second chute is located on a side of the first end face facing away from the opening. The first elastic assembly further includes a shock pad, and the shock pad is installed at the bottom of the second chute and / or the first end face; And / or, the valve cavity is provided with a second end face between the first end face and the opening. The second end face is annular, and the inner diameter of the second end face is smaller than the outer diameter of the piston.

9. The pedal feel simulator according to claim 1, characterized in that, A plurality of spaced seals are embedded at a position of the valve cavity close to the opening, and the inner peripheral surface of the seal abuts tightly against the piston.

10. A vehicle, characterized in that, Comprising the pedal feel simulator according to any one of claims 1 to 9, the pedal feel simulator is installed in the cab of the vehicle.

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