Pedal simulator, brake-by-wire system and vehicle

Abstract

The utility model is suitable for the technical field of vehicles, and provides a pedal simulator, a brake-by-wire system and a vehicle, the vehicle comprises the brake-by-wire system, the brake-by-wire system comprises the pedal simulator, and the pedal simulator comprises a fixed structure and a moving structure. A containing cavity is formed in the fixing structure. The moving structure can be connected to the fixed structure in a reciprocating motion manner and is partially positioned in the accommodating cavity; the containing cavity is used for containing liquid providing damping for movement of the moving structure. Thus, the liquid adaptively flows along with the motion structure, stable damping can be provided for the motion structure, the damping can be accurately controlled, the damping feeling of the pedal simulator is improved, and the force lag requirement can be met.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and more specifically, relates to a pedal simulator, a wire-controlled brake system, and a vehicle. Background Art

[0002] In related technologies, a brake-by-wire system typically includes a pedal simulator and a pedal, which is rotatably connected to the pedal simulator. During operation, the brake-by-wire system electronically controls the rotation of the pedal to apply braking. During pedal rotation, the pedal simulator simulates the pedal's rotation, specifically providing damping to simulate the feel of the pedal being pressed.

[0003] In some cases, a pedal simulator usually uses friction to provide damping for the rotation of the pedal, which makes the damping feel provided by the pedal simulator unclear and difficult to meet the force hysteresis requirement. Utility Model Content

[0004] In view of the above problems, the embodiments of the present application provide a pedal simulator, a wire control brake system and a vehicle, which can improve the technical problem that the damping feeling of the pedal simulator is not obvious.

[0005] In a first aspect, an embodiment of the present application provides a pedal simulator, comprising:

[0006] A fixed structure with an internal accommodating cavity;

[0007] The moving structure is connected to the fixed structure in a reciprocating manner and is partially located in the accommodating cavity; the accommodating cavity is used to accommodate liquid that provides damping for the movement of the moving structure.

[0008] The pedal simulator provided in an embodiment of the present application has a liquid-holding chamber within a fixed structure. The moving structure is movably connected to the fixed structure and partially located within the chamber. As the moving structure moves relative to the fixed structure, the liquid within the chamber adaptively flows with the moving structure to provide damping for the moving structure. This adaptive flow of liquid with the moving structure provides stable damping for the moving structure, and the magnitude of the damping can be precisely controlled, improving the damping feel of the pedal simulator and helping to meet force lag requirements.

[0009] In some embodiments, the motion structure includes:

[0010] A moving part connected to a fixed structure so as to be capable of reciprocating movement;

[0011] The limiting member is fixedly connected to the moving member and is located in the accommodating cavity; the liquid in the accommodating cavity is at least used to provide damping for the movement of the limiting member.

[0012] By fixing the limiting member to the moving member and locating it in the accommodating cavity, the surface area of ​​the moving structure along the first direction can be increased, so that the liquid can stably squeeze the limiting member and provide damping to the moving structure, which is conducive to accurately controlling the size of the damping and improving the damping feeling.

[0013] In some embodiments, part of the moving part is located in the accommodating cavity, and the limiting part is sleeved on the outer periphery of the moving part.

[0014] This arrangement, on the one hand, allows the moving structure to reciprocate stably, so that the liquid can stably provide damping to the moving structure, thereby facilitating precise control of the magnitude of the damping. On the other hand, it can increase the surface area of ​​the limiter along the first direction, thereby improving the damping feeling.

[0015] In some embodiments, the fixed structure is provided with a first wall and a second wall opposite to each other along a first direction in the accommodating cavity; the moving part is passed through the first wall and is used to move back and forth relative to the fixed structure along the first direction; the limiting part is provided between the first wall and the second wall.

[0016] By the moving part passing through the first wall along the first direction, the moving part and the limiting part are located in the middle position of the accommodating cavity, so that the liquid can stably provide damping to the moving structure.

[0017] In some embodiments, the moving part passes through the second wall.

[0018] Such an arrangement enables the fixed structure at both ends of the accommodating cavity along the first direction to install and support the moving part, so that the moving structure can stably reciprocate along the first direction, which is beneficial to improving the pedaling feel.

[0019] In some embodiments, the fixing structure includes a first end portion, a second end portion, and a sleeve portion, wherein the sleeve portion is provided through the first direction, and the first end portion and the second end portion are respectively provided at opposite ends of the sleeve portion along the first direction, and are surrounded by the sleeve portion to form an accommodating cavity;

[0020] A first mounting groove is formed through the first end portion along a first direction, and a first wall is provided at an end of the first end portion opposite to the second end portion;

[0021] A second mounting groove is provided through the second end portion along the first direction, and a second wall is provided at an end of the second end portion opposite to the first end portion;

[0022] The moving part is inserted into the first installation slot and the second installation slot;

[0023] A first sealing ring is provided between the inner peripheral wall of the first installation groove and the outer peripheral wall of the moving part, and / or a second sealing ring is provided between the inner peripheral wall of the second installation groove and the outer peripheral wall of the moving part.

[0024] By providing the first sealing ring and / or the second sealing ring, a sealing effect of the accommodating chamber can be achieved, which is beneficial for the liquid in the accommodating chamber to provide damping to the moving structure under a certain pressure, thereby improving the damping feeling.

[0025] In some embodiments, the fixed structure is provided with an inner circumferential wall in the accommodating cavity, the inner circumferential wall is connected between the first wall and the second wall, and is arranged around the outer periphery of the moving part and the limiting part; a first gap is formed between the limiting part and the inner circumferential wall for liquid flow.

[0026] A first gap is formed between the stopper and the inner peripheral wall. This allows the stopper to reciprocate along the first direction relative to the fixed structure, allowing the liquid in the accommodating chamber on opposite sides of the stopper along the first direction to flow through the first gap. This allows the liquid in the accommodating chamber to adaptively flow with the movement of the stopper, providing damping for the stopper. This provides stable damping for the moving structure and precisely controls the damping, improving the pedal simulator's damping feel and helping to meet force hysteresis requirements.

[0027] In some embodiments, a first through groove is provided through the limiting member along the moving direction of the motion structure; the motion structure further includes a valve connected to the limiting member, and the valve is used to open or close the first through groove under the action of the liquid in the accommodating chamber.

[0028] A first through-slot is provided through the limiter, and the limiter is connected to a valve for opening or closing the first through-slot under the action of the liquid in the accommodating chamber. When the moving structure reciprocates along the first direction relative to the fixed structure, the limiter reciprocates along the first direction. The liquid in the accommodating chamber can provide a force to the valve under the squeezing action of the limiter, so that the valve opens or closes the first through-slot, thereby allowing the liquid in the accommodating chamber on opposite sides of the limiter along the first direction to flow relative to each other, so that the liquid in the accommodating chamber can also flow adaptively with the movement of the limiter to provide damping for the limiter. In this way, stable damping can be provided to the moving structure, and the magnitude of the damping can be precisely controlled, thereby improving the damping feel of the pedal simulator and helping to meet the force lag requirements.

[0029] In some embodiments, the valve is rotatably connected to the limiting member and is configured to rotate relative to the limiting member under the action of the liquid in the accommodating chamber to open or close the first through groove.

[0030] The valve is connected to the limit member through rotation, so that during the reciprocating movement of the limit member along the first direction, the liquid in the accommodating chamber provides a force to the valve under the squeezing action of the limit member, so as to rotate to open or close the first through groove, so that the liquid in the accommodating chamber can flow adaptively with the limit member to provide damping to the limit member.

[0031] In some embodiments, the fixed structure is provided with a first wall and a second wall opposite to each other along a first direction in the accommodating cavity; the moving member is provided through the first wall and is configured to reciprocate relative to the fixed structure along the first direction; and the limiting member is provided between the first wall and the second wall.

[0032] When the limiting member moves toward the second wall along the first direction, the valve is used to rotate toward the first wall to open the first through groove.

[0033] By employing this technical solution, the valve automatically and adaptively opens or closes the first slot during movement of the motion structure in the first direction, allowing the liquid in the accommodating chamber to adaptively flow along the stopper to provide damping for the stopper. This provides stable damping for the motion structure and allows precise control of the damping, enhancing the pedal simulator's damping feel and helping to meet force lag requirements.

[0034] In some embodiments, the limiting member includes a limiting portion, a portion of which is arranged opposite to the first through groove and is used to limit the valve to limit the opening stroke of the valve.

[0035] By adopting this technical solution, after the valve opens the first through-slot, the portion of the valve away from the main body can be restrained by the stopper, limiting the valve's opening stroke. This facilitates the valve's subsequent automatic closing of the first through-slot. This arrangement also allows fluid to adaptively flow along the stopper, providing damping for the stopper.

[0036] In some embodiments, the pedal simulator further includes a support member disposed on the fixed structure, and the support member is sleeved on the outer periphery of the moving member.

[0037] By providing a support member to support the moving member, the moving structure can stably reciprocate relative to the fixed structure, which is beneficial to improving the pedaling feel.

[0038] In some embodiments, the pedal simulator further includes an elastic structure, at least a portion of which is connected between the fixed structure and the moving structure along the moving direction of the moving structure.

[0039] By adopting the above technical solution, the elastic structure can provide the motion structure with a reaction force for reverse movement, so that the motion structure can be reset to move in the reverse direction and the pedal feel when the pedal is rotated is improved.

[0040] In some embodiments, the pedal simulator further includes an elastic structure, at least a portion of which is connected between the fixed structure and the moving structure along the moving direction of the moving structure, and the elastic structure is sleeved around the outer periphery of the moving part.

[0041] Such an arrangement enables the elastic structure to uniformly provide a force to the limiting member, thereby facilitating the stable reverse movement of the motion structure.

[0042] In some embodiments, the pedal simulator also includes an elastic structure, which includes multiple elastic members, which are abutted in sequence along the first direction and abutted between the second wall and the limit member; in the direction from the first wall to the second wall along the first direction, the structural strength of the multiple elastic members is gradually increased.

[0043] By including multiple elastic members that sequentially abut against each other along the motion structure's direction of movement, the elastic structure exhibits superior elastic properties, providing a relatively stable and high-intensity reaction force to the motion structure. Furthermore, the structural strength of the multiple elastic members is arranged to gradually increase from the first wall toward the second wall along the first direction. This means that the elastic members of the elastic structure are graded, so that during forward pedal rotation, the motion structure's compression of the elastic structure becomes increasingly difficult. This allows the elastic structure to accurately simulate the pedal feel during rotation, meeting the pedal force-stroke curve requirements and ensuring a smooth transition.

[0044] In some embodiments, the elastic structure includes a plurality of elastic members, which abut against each other in sequence along the first direction and abut between the second wall and the limiting member; the elastic members include:

[0045] Outer ring;

[0046] A plurality of elastic arms are connected to the inner circumference of the outer ring portion at intervals along the circumferential direction.

[0047] The multiple elastic arms are spaced apart along the circumference, giving the elastic member improved elastic properties. Furthermore, the space formed between two adjacent elastic arms can be used to allow the liquid in the accommodating chamber to flow, thus facilitating the adaptive flow of the liquid in the accommodating chamber along with the moving structure, thereby providing damping for the moving structure.

[0048] In some embodiments, the elastic structure includes a plurality of elastic members, which abut against each other in sequence along the first direction and abut between the second wall and the limiting member, and the elastic members are disc springs.

[0049] By configuring the elastic member as a disc spring, the elastic structure has better elastic performance, thereby providing a more stable and high-intensity reaction force to the motion structure.

[0050] In a second aspect, an embodiment of the present application provides a brake-by-wire system including a pedal simulator.

[0051] The wire control braking system provided in the embodiment of the present application, by adopting the pedal simulator involved above, can accurately control the size of the damping during the wire control braking process, improve the damping feel of the pedal simulator, and help meet the force lag requirements.

[0052] In some embodiments, the brake-by-wire system further comprises:

[0053] Base structure;

[0054] The pedal is rotatably connected to the base structure, and the rotation axis of the pedal is parallel to the moving direction of the motion structure; the fixed structure is installed on the base structure, the pedal is connected to the motion structure, and is used to drive the motion structure to move when rotating.

[0055] By adopting the above technical solution, when the pedal rotates, the moving structure can move under the drive of the pedal, and the liquid in the accommodating cavity of the fixed structure can provide damping to the moving structure, thereby improving the damping feeling of the pedal simulator and helping to meet the force lag requirements.

[0056] In a third aspect, an embodiment of the present application provides a vehicle including a brake-by-wire system.

[0057] The vehicle provided in the embodiment of the present application adopts the above-mentioned wire control braking system, which enables the vehicle to accurately control the size of the damping during the wire control braking process, improve the damping feel of the pedal simulator, and help meet the force lag requirements.

[0058] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0060] Figure 1 A schematic diagram of a vehicle provided for some embodiments of the present application;

[0061] Figure 2 A partial schematic diagram of a brake-by-wire system provided in some embodiments of the present application;

[0062] Figure 3 A three-dimensional structural diagram of a pedal simulator provided in some embodiments of the present application;

[0063] Figure 4 for Figure 3 Sectional view along AA;

[0064] Figure 5 for Figure 4A partial enlarged view of

[0065] Figure 6 A schematic diagram of a limiting member of a pedal simulator provided in some embodiments of the present application;

[0066] Figure 7 for Figure 6 Provided schematic diagram of the coordination between the stopper and the valve;

[0067] Figure 8 Schematic diagram of the limiting component of the pedal simulator provided in some embodiments of the present application.

[0068] Among them, the reference numerals in the figures are:

[0069] 1000-vehicle; 100-wire control braking system; 10-pedal simulator; 20-battery; 30-controller; 40-motor; 50-base structure; 60-pedal; 1-fixed structure; 101-accommodating chamber; 102-first wall; 103-second wall; 104-inner wall; 105-first mounting groove; 106-second mounting groove; 11-first end; 12-second end; 13-sleeve part; 2-movement structure; 201-first through groove; 21-moving part; 22-limiting part; 221-main body; 222-limiting part; 23-valve; 3-elastic structure; 31-elastic part; 311-outer ring part; 312-elastic arm; 4-first sealing ring; 5-second sealing ring; 6-support part; 7-first gap; L-rotation axis; Y-first direction. DETAILED DESCRIPTION

[0070] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0071] Unless otherwise specified, all implementations and optional implementations of the embodiments of the present application can be combined with each other to form a new technical solution.

[0072] Unless otherwise specified, all technical features and optional technical features of the embodiments of the present application can be combined with each other to form a new technical solution.

[0073] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0075] In the description of the embodiments of the present application, "a plurality of" means more than two, and unless otherwise specifically defined, "more than two" includes two. Accordingly, "a plurality of groups" means more than two groups, including two groups.

[0076] In the description of the embodiments of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," and the like should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0077] In the description of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B exist at the same time, and B exists. In addition, in this application, the character " / " generally indicates that the related objects are in an "or" relationship.

[0078] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

[0079] A brake-by-wire system is a system structure applied to a vehicle and used for braking through electronic control. In related technologies, a brake-by-wire system can generally include a pedal simulator and a pedal, with the pedal being rotatably connected to the pedal simulator. During operation, the brake-by-wire system can electrically control the rotation of the pedal to perform braking. During the pedal rotation process, the pedal simulator is used to simulate the rotation of the pedal, specifically providing damping to the rotation of the pedal to simulate the pedaling feeling when the pedal is stepped on. In addition, the pedal simulator can also be used to provide a reaction force to the pedal.

[0080] The pedal rotation can include forward and reverse rotation. The brake-by-wire system can electronically control the pedal rotation to apply braking. During pedal rotation, the pedal simulator can provide damping. The brake-by-wire system can remove the pedal from the drive, and the pedal simulator can provide a reaction force to the pedal, causing it to rotate in the opposite direction, i.e., to reset. The pedal simulator can also provide a certain amount of damping during reverse pedal rotation.

[0081] In some cases, a pedal simulator usually uses friction to provide damping for the rotation of the pedal, which makes the damping feel provided by the pedal simulator unclear and difficult to meet the force hysteresis requirement.

[0082] Based on the above considerations, the embodiments of the present application provide a pedal simulator, a wire-controlled brake system, and a vehicle. A liquid-holding chamber is provided within a fixed structure, and a moving structure is reciprocally connected to the fixed structure and partially located within the chamber. As the moving structure moves relative to the fixed structure, the liquid within the chamber can adaptively flow with the moving structure to provide damping to the moving structure. In this way, by adaptively flowing the liquid with the moving structure, stable damping can be provided to the moving structure, and the magnitude of the damping can be precisely controlled, thereby improving the damping feel of the pedal simulator and helping to meet force lag requirements.

[0083] The pedal simulator and brake-by-wire system provided in the embodiments of this application can be applied to vehicles or toy vehicles. Based on the power source, the vehicle can be a fuel-powered vehicle, a gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid vehicles, or extended-range vehicles. Based on the drive mode, the vehicle can be front-wheel drive, rear-wheel drive, or four-wheel drive.

[0084] In some embodiments, see Figure 1 , Figure 1A schematic diagram of a vehicle 1000 according to some embodiments of the present application is provided. A battery 20 is provided within the vehicle 1000 and can be located at the bottom, front, or rear of the vehicle 1000. The battery 20 can be used to power the vehicle 1000, for example, as an operating power source for the vehicle 1000. The vehicle 1000 can also include a controller 30 and a motor 40. The controller 30 is used to control the battery 20 to power the motor 40, for example, to meet the power requirements of the vehicle 1000 during startup, navigation, and driving.

[0085] In some embodiments, the battery 20 can serve not only as an operating power source for the vehicle 1000 , but also as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .

[0086] In some embodiments, please refer to Figure 1 and Figure 2 , Figure 2 A partial schematic diagram of a brake-by-wire system 100 provided in some embodiments of the present application. A vehicle 1000 may include the brake-by-wire system 100 , which refers to a system structure for controlling the braking of the vehicle 1000 in an electronically controlled manner.

[0087] The brake-by-wire system 100 may include a pedal simulator 10 and a pedal 60, wherein the pedal 60 is rotatably connected to the pedal simulator 10. During operation, the brake-by-wire system 100 controls the rotation of the pedal 60, and the pedal simulator 10 may provide damping for the rotation of the pedal 60.

[0088] As an example, the brake-by-wire system 100 may include the battery 20, the controller 30, and the motor 40. The controller 30 may control the battery 20 to power the motor 40, so that the motor 40 controls the rotation of the pedal 60, specifically provides driving force for the rotation of the pedal 60.

[0089] Specifically, the rotation of the pedal 60 may include forward rotation and reverse rotation. The forward rotation and reverse rotation are opposite. During the rotational movement of the pedal 60, braking may be performed, and the pedal simulator 10 may provide damping for the forward rotation of the pedal 60. When the driving force providing the forward rotation of the pedal 60 is removed, the pedal simulator 10 provides a reaction force to the pedal 60, causing the pedal 60 to rotate in the reverse direction, i.e., to perform a reset movement. During the reverse rotation of the pedal 60, the pedal simulator 10 may also provide a certain amount of damping for the pedal 60.

[0090] Please also refer to Figures 2 to 4 , and combined with other drawings. Among them, Figure 3 This is a three-dimensional structural diagram of a pedal simulator 10 provided in some embodiments of the present application. Figure 4 for Figure 3Cross-sectional view along line AA. The pedal simulator 10 provided in an embodiment of the present application includes a fixed structure 1, a moving structure 2, and an elastic structure 3. The fixed structure 1 has a housing 101 therein. The moving structure 2 is connected to the fixed structure 1 so as to be reciprocatingly movable, and a portion of the moving structure 2 is located within the housing 101. The housing 101 is used to accommodate a liquid that provides damping for the movement of the moving structure 2.

[0091] The fixed structure 1 is a fixed part of the pedal simulator 10 .

[0092] The accommodating cavity 101 refers to the interior space of the fixed structure 1 and is used to accommodate liquid. The liquid can be a liquid medium such as water or oil. As an example, the liquid is hydraulic oil.

[0093] The motion structure 2 is the moving part of the pedal simulator 10 , and the motion structure 2 can reciprocate relative to the fixed structure 1 . The motion structure 2 can be rotatably connected to the pedal 60 .

[0094] The moving structure 2 is reciprocally connected to the fixed structure 1, which means that the moving structure 2 is connected to the fixed structure 1 and the moving structure 2 can reciprocate relative to the fixed structure 1. The moving structure 2 can reciprocate relative to the fixed structure 1, which means that the moving structure 2 can reciprocate relative to the fixed structure 1 in a substantially straight line extending direction.

[0095] For ease of description, the moving direction of the motion structure 2 is defined to be substantially parallel to the first direction Y, that is, the motion structure 2 can reciprocate relative to the fixed structure 1 along the first direction Y. The first direction Y is substantially a straight line extending direction, which is the direction of the double arrow.

[0096] The motion structure 2 can move back and forth relative to the fixed structure 1, which means that the motion structure 2 can move forward relative to the fixed structure 1, and can also move backward relative to the fixed structure 1. The forward movement and the reverse movement are substantially opposite, and the forward movement and the reverse movement are substantially parallel to the first direction Y, that is, the forward movement is the forward movement along the first direction Y, and the reverse movement is the reverse movement along the first direction Y. The direction of the forward movement is as follows: Figures 2 to 4 The direction indicated in the figure is Y1, and the reverse direction is as follows Figures 2 to 4 The direction Y2 is shown in FIG.

[0097] The portion of the moving structure 2 located within the accommodating cavity 101 means that the portion of the moving structure 2 extends into the accommodating cavity 101. The moving structure 2 is capable of reciprocating along the first direction Y relative to the fixed structure 1, so that the portion of the moving structure 2 located within the accommodating cavity 101 can also reciprocate along the first direction Y relative to the fixed structure 1.

[0098] Based on the above structure, when the moving structure 2 reciprocates relative to the fixed structure 1 along the first direction Y, the liquid within the accommodating chamber 101 can adaptively flow under the action of the moving structure 2, thereby providing damping for the movement of the moving structure 2. It can be understood that when the moving structure 2 moves forward relative to the fixed structure 1 along the first direction Y, the liquid within the accommodating chamber 101 will adaptively flow under the action of the moving structure 2, thereby providing damping for the forward movement of the moving structure 2. When the moving structure 2 moves backward relative to the fixed structure 1 along the first direction Y, the liquid within the accommodating chamber 101 will adaptively flow under the action of the moving structure 2, thereby providing damping for the reverse movement of the moving structure 2.

[0099] For example, the pedal 60 of the brake-by-wire system 100 can be rotatably connected to the moving structure 2. When the pedal 60 rotates in the forward direction, a braking effect can be achieved. Driven by the forward rotation of the pedal 60, the moving structure 2 moves forward relative to the fixed structure 1 in the first direction Y. At this time, the liquid in the accommodating chamber 101 adaptively flows with the moving structure 2 to provide damping for the moving structure 2.

[0100] The pedal simulator 10 provided in an embodiment of the present application has a liquid-containing chamber 101 provided within a fixed structure 1. The moving structure 2 is movably connected to the fixed structure 1 and partially located within the chamber 101. As the moving structure 2 moves relative to the fixed structure 1, the liquid within the chamber 101 can adaptively flow with the moving structure 2 to provide damping for the moving structure 2. In this way, by adaptively flowing the liquid with the moving structure 2, stable damping can be provided to the moving structure 2, and the magnitude of the damping can be precisely controlled, thereby improving the damping feel of the pedal simulator 10 and helping to meet force hysteresis requirements.

[0101] In addition, the pedal simulator 10 can provide force hysteresis damping without the need for an additional damper, so that the pedal simulator 10 provided in this embodiment has a simple structure and low cost.

[0102] In some embodiments, please refer to Figure 3 and Figure 4 The pedal simulator 10 further comprises an elastic structure 3 , at least part of which is connected between the fixed structure 1 and the moving structure 2 along the moving direction of the moving structure 2 .

[0103] The elastic structure 3 is a structure with elastic properties, used to provide a reaction force to the motion structure 2, specifically to provide a force for reverse movement of the motion structure 2. The elastic structure 3 can be, but is not limited to, a structure with elastic properties such as a spring or a spring.

[0104] Along the moving direction of the moving structure 2, at least part of the elastic structure 3 is connected between the fixed structure 1 and the moving structure 2, which means that along the moving direction of the moving structure 2, at least part of the elastic structure 3 is located between the fixed structure 1 and the moving structure 2, and is connected to the fixed structure 1 and the moving structure 2, so that the elastic structure 3 can provide a force to the moving structure 2 roughly along the first direction Y, thereby providing a force for reverse movement to the moving structure 2.

[0105] It can be understood that when the motion structure 2 moves in the forward direction, the elastic structure 3 continues to accumulate force under the action of the motion structure 2. For example, the motion structure 2 continues to compress the elastic structure 3 along the first direction Y. When the driving force for the forward movement of the motion structure 2 is removed, the elastic structure 3 resets, so that the motion structure 2 moves in the reverse direction under the action of the elastic structure 3.

[0106] It should be noted that the pedal 60 of the brake-by-wire system 100 is rotatably connected to the moving structure 2. When the pedal 60 rotates in the forward direction, a braking effect is achieved. Driven by the forward rotation of the pedal 60, the moving structure 2 moves forward relative to the fixed structure 1 in the first direction Y. At this time, the liquid in the accommodating chamber 101 adaptively flows with the moving structure 2, providing damping for the moving structure 2.

[0107] When the driving force for the forward rotation of the pedal 60 is removed, the driving force of the pedal 60 on the forward movement of the motion structure 2 is also removed, the elastic structure 3 returns to its original position, and the motion structure 2 moves in the opposite direction under the force of the elastic structure 3, and the pedal 60 also rotates in the opposite direction to return to its original position. At this time, the liquid in the accommodating chamber 101 can also flow adaptively with the motion structure 2 to provide damping for the motion structure 2.

[0108] The forward rotation direction of the pedal 60 can be approximately Figure 2 The direction a in the figure, the direction of the reverse rotation of the pedal 60 can be approximately Figure 2 The plane formed by the direction a and the direction b may be substantially perpendicular to the first direction Y.

[0109] By adopting the above technical solution, the elastic structure 3 can provide a reaction force for reverse movement to the motion structure 2, so that the motion structure 2 can be reset to move in the reverse direction and the pedal feel when the pedal 60 rotates can be improved.

[0110] In some embodiments, please refer to Figure 4 and Figure 5 , and combined with other drawings. Among them, Figure 5 for Figure 4A partially enlarged view of the moving structure 2. The moving structure 2 includes a moving member 21 and a limiting member 22. The moving member 21 is connected to the fixed structure 1 for reciprocal movement. The limiting member 22 is fixedly connected to the moving member 21 and is located within the accommodating chamber 101. The liquid within the accommodating chamber 101 is used to at least provide damping for the movement of the limiting member 22.

[0111] The moving member 21 is the portion connecting the moving structure 2 to the fixed structure 1. The moving member 21 is connected to the fixed structure 1 and is configured to reciprocate along a first direction Y relative to the fixed structure 1.

[0112] The moving part 21 is used to rotate the connecting pedal 60 .

[0113] The moving part 21 may be, but is not limited to, a rod shape.

[0114] The limiting member 22 is part of the moving structure 2 and is fixedly connected to the moving member 21 so that when the moving member 21 reciprocates along the first direction Y relative to the fixed structure 1 , the limiting member 22 can move with the moving member 21 .

[0115] By positioning the limiting member 22 in the accommodating cavity 101, the liquid in the accommodating cavity 101 can contact the surface of the limiting member 22 along the first direction Y. Thus, when the moving structure 2 moves back and forth along the first direction Y, the limiting member 22 can contact and squeeze the liquid along the first direction Y, thereby allowing the liquid to flow adaptively to provide damping to the limiting member 22, thereby providing damping to the moving structure 2.

[0116] By fixing the limiting member 22 to the moving member 21 and locating it in the accommodating cavity 101, the surface area of ​​the moving structure 2 along the first direction Y can be increased, so that the liquid can stably squeeze the limiting member 22 and provide damping to the moving structure 2, which is conducive to accurately controlling the size of the damping and improving the damping feeling.

[0117] It should be additionally explained that the elastic structure 3 is connected to at least one of the moving member 21 and the limiting member 22 .

[0118] In some embodiments, please refer to Figure 4 and Figure 5 Part of the moving part 21 is located in the accommodating cavity 101 , and the limiting part 22 is sleeved on the outer periphery of the moving part 21 .

[0119] This arrangement, on the one hand, allows the motion structure 2 to reciprocate stably, so that the liquid can stably provide damping to the motion structure 2, thereby facilitating precise control of the magnitude of the damping. On the other hand, it can increase the surface area of ​​the limiter 22 along the first direction Y, thereby improving the damping feeling.

[0120] In some embodiments, please refer to Figure 4 and Figure 5 , and in conjunction with other drawings. The fixed structure 1 is provided with a first wall 102 and a second wall 103 within the accommodating cavity 101. The first wall 102 and the second wall 103 are arranged opposite each other along a first direction Y. The moving member 21 is provided through the first wall 102 and is configured to move relative to the fixed structure 1 along the first direction Y. The limiting member 22 is provided between the first wall 102 and the second wall 103.

[0121] The first wall 102 and the second wall 103 are inner wall surfaces of the accommodating cavity 101. The first wall 102 and the second wall 103 are spaced apart and arranged opposite to each other substantially along the first direction Y.

[0122] The moving member 21 is disposed through the first wall 102 along the first direction Y, so that a portion of the moving member 21 can be located in the accommodating cavity 101 .

[0123] The limiting member 22 is fixedly connected to the moving member 21 and is arranged between the first wall 102 and the second wall 103, so that when the moving member 21 moves relative to the fixed structure 1 along the first direction Y, the position of the limiting member 22 in the accommodating chamber 101 changes under the drive of the moving member 21, so that the liquid in the accommodating chamber 101 can flow adaptively accordingly.

[0124] It should be noted that the forward movement direction of the motion structure 2 is roughly the direction from the first wall 102 along the first direction Y to the second wall 103 , and the reverse movement direction of the motion structure 2 is roughly the direction from the second wall 103 along the first direction Y to the first wall 102 .

[0125] By the moving member 21 passing through the first wall 102 along the first direction Y, the moving member 21 and the limiting member 22 are located in the middle of the accommodating cavity 101 , so that the liquid can stably provide damping to the moving structure 2 .

[0126] It should be supplemented here that, along the first direction Y, at least a portion of the elastic structure 3 is connected between the second wall 103 and the limiting member 22 .

[0127] Along the first direction Y, at least a portion of the elastic structure 3 is connected between the second wall 103 and the stopper 22, which means that along the first direction Y, at least a portion of the elastic structure 3 is disposed between the second wall 103 and the stopper 22 and is connected to the second wall 103 and the stopper 22. The elastic structure 3 may be directly connected to the second wall 103, or other intermediate components may be connected between the elastic structure 3 and the second wall 103. The elastic structure 3 may be directly connected to the stopper 22, or other intermediate components may be connected between the elastic structure 3 and the stopper 22.

[0128] By at least partially connecting the elastic structure 3 between the second wall 103 and the limiting member 22 , the elastic structure 3 can provide the motion structure 2 with a force for reverse movement.

[0129] In some embodiments, please refer to Figure 4 and Figure 5 The moving member 21 is disposed through the second wall 103 .

[0130] It can be understood that the moving member 21 is provided along the first direction Y through the second wall 103 , so that the moving member 21 passes through the accommodating cavity 101 along the first direction Y.

[0131] Such an arrangement enables the fixed structure 1 to install and support the moving part 21 at both opposite ends of the accommodating cavity 101 along the first direction Y, so that the moving structure 2 can stably move back and forth along the first direction Y, which is beneficial to improving the stepping feel of the pedal 60.

[0132] In some embodiments, please refer to Figures 3 to 5 , and combined with other drawings. The fixed structure 1 includes a first end 11, a second end 12 and a sleeve portion 13. The sleeve portion 13 is arranged to pass through along the first direction Y. The first end 11 and the second end 12 are respectively arranged at the opposite ends of the sleeve portion 13 along the first direction Y, and the first end 11, the second end 12 and the sleeve portion 13 are surrounded to form a accommodating cavity 101. The first end 11 is provided with a first mounting groove 105 passing through along the first direction Y, and the first wall 102 is provided at the end of the first end 11 opposite to the second end 12. The second end 12 is provided with a second mounting groove 106 passing through along the first direction Y, and the second wall 103 is provided at the end of the second end 12 opposite to the first end 11. The moving part 21 is passed through the first mounting groove 105 and the second mounting groove 106.

[0133] The first end 11 , the second end 12 and the sleeve are three substantial parts of the fixing structure 1 .

[0134] A first wall 102 is provided at one end of the first end portion 11 close to the second end portion 12 along the first direction Y, and a second wall 103 is provided at one end of the second end portion 12 close to the first end portion 11 along the first direction Y.

[0135] The first installation groove 105 is a through groove, and the first installation groove 105 passes through the first end portion 11 along the first direction Y.

[0136] The second installation groove 106 is a through groove, and the second installation groove 106 passes through the second end portion 12 along the first direction Y.

[0137] The moving part 21 is inserted into the first mounting groove 105 and the second mounting groove 106 along the first direction Y, so that the first end 11 and the second end 12 can jointly support the moving part 21, so that the moving structure 2 can stably move back and forth along the first direction Y, which is beneficial to improving the stepping feel of the pedal 60.

[0138] A first sealing ring 4 is provided between the inner peripheral wall 104 of the first mounting groove 105 and the outer peripheral wall of the moving part 21, and no second sealing ring 5 is provided between the inner peripheral wall 104 of the second mounting groove 106 and the outer peripheral wall of the moving part 21. Figure 4 Alternatively, a first sealing ring 4 is provided between the inner circumferential wall 104 of the first mounting groove 105 and the outer circumferential wall of the moving part 21, while a second sealing ring 5 is not provided between the inner circumferential wall 104 of the second mounting groove 106 and the outer circumferential wall of the moving part 21. Alternatively, a second sealing ring 5 is provided between the inner circumferential wall 104 of the second mounting groove 106 and the outer circumferential wall of the moving part 21, while a first sealing ring 4 is not provided between the inner circumferential wall 104 of the first mounting groove 105 and the outer circumferential wall of the moving part 21.

[0139] The first sealing ring 4 and the second sealing ring 5 are both sealing rings with sealing performance, and can be but are not limited to rubber rings, silicone rings, etc.

[0140] By providing the first sealing ring 4 and / or the second sealing ring 5 , a sealing effect of the accommodating chamber 101 can be achieved, which is beneficial for the liquid in the accommodating chamber 101 to provide damping to the moving structure 2 under a certain pressure, thereby improving the damping feeling.

[0141] In some embodiments, sealing rings may also be provided between the first end 11 and the sleeve, and between the second end 12 and the sleeve to achieve a sealing effect for the accommodating cavity 101, so that the liquid in the accommodating cavity 101 can provide damping to the moving structure 2 under a certain pressure to enhance the damping feeling.

[0142] In some embodiments, please refer to Figure 4 and Figure 5 , and in conjunction with other figures. The fixed structure 1 is provided with an inner peripheral wall 104 within the accommodating chamber 101. The inner peripheral wall 104 is connected between the first wall 102 and the second wall 103 and surrounds the outer periphery of the moving member 21 and the retaining member 22. The retaining member 22 and the inner peripheral wall 104 are spaced apart, and a first gap 7 is formed between the retaining member 22 and the inner peripheral wall 104. The first gap 7 is used to allow the liquid in the accommodating chamber 101 to flow.

[0143] The inner peripheral wall 104 is the inner peripheral wall 104 surface of the accommodating chamber 101 .

[0144] The first gap 7 is formed between the stopper 22 and the inner peripheral wall 104. As the moving structure 2 reciprocates relative to the fixed structure 1 along the first direction Y, the stopper 22 reciprocates along the first direction Y. Liquid within the accommodating chamber 101 on opposite sides of the stopper 22 along the first direction Y can flow through the first gap 7. This allows the liquid within the accommodating chamber 101 to adaptively flow as the stopper 22 moves, providing damping for the stopper 22. This provides stable damping for the moving structure 2, and the magnitude of the damping can be precisely controlled, improving the damping feel of the pedal simulator 10 and helping to meet force hysteresis requirements.

[0145] In some embodiments, please refer to Figures 4 to 7 , and combined with other drawings. Among them, Figure 6 Schematic diagram of the limiting member 22 of the pedal simulator 10 provided in some embodiments of the present application. Figure 6 In the embodiment of the present invention, the limiting member 22 is substantially perpendicular to the first direction Y. Figure 7 for Figure 6 A schematic diagram of the cooperation between the limiter 22 and the valve 23 is provided. Figure 7 In the diagram, the limiting member 22 and the valve 23 are substantially parallel to the first direction Y, and Figure 7 In the embodiment, valve 23 is in a state of opening first through-slot 201. The first through-slot 201 is formed through the stopper 22 along the movement direction of the motion structure 2. The motion structure 2 also includes a valve 23 connected to the stopper 22. Valve 23 is used to open or close the first through-slot 201 under the action of the liquid in the accommodating chamber 101.

[0146] The limiting member 22 is provided with a first through slot 201 extending along the first direction Y.

[0147] The valve 23 is a component used to open or close the first through-slot 201. When the valve 23 opens the first through-slot 201, liquid in the accommodating chamber 101 on opposite sides of the stopper 22 along the first direction Y can flow through the first through-slot 201. When the valve 23 closes the first through-slot 201, liquid in the accommodating chamber 101 on opposite sides of the stopper 22 along the first direction Y cannot flow through the first through-slot 201.

[0148] A first through-slot 201 is provided through the limiting member 22, and the limiting member 22 is connected to a valve 23 for opening or closing the first through-slot 201 under the action of the liquid in the accommodating chamber 101. When the moving structure 2 reciprocates along the first direction Y relative to the fixed structure 1, the limiting member 22 reciprocates along the first direction Y. The liquid in the accommodating chamber 101 can provide a force to the valve 23 under the squeezing action of the limiting member 22, so that the valve 23 opens or closes the first through-slot 201. This allows the liquid in the accommodating chamber 101 on opposite sides of the limiting member 22 along the first direction Y to flow relative to each other, so that the liquid in the accommodating chamber 101 can also flow adaptively with the movement of the limiting member 22 to provide damping to the limiting member 22. In this way, stable damping can be provided to the moving structure 2, and the magnitude of the damping can be precisely controlled, thereby improving the damping feel of the pedal simulator 10 and helping to meet the force hysteresis requirements.

[0149] In some embodiments, please refer to Figures 4 to 7 The valve 23 is rotatably connected to the stopper 22 and is used to rotate relative to the stopper 22 under the action of the liquid in the accommodating chamber 101 to open or close the first through slot 201 .

[0150] The valve 23 is rotatably connected to the limit member 22, so that during the reciprocating movement of the limit member 22 along the first direction Y, the liquid in the accommodating chamber 101 provides a force to the valve 23 under the squeezing action of the limit member 22, so as to rotate and open or close the first through groove 201, so that the liquid in the accommodating chamber 101 can flow adaptively with the limit member 22 to provide damping for the limit member 22.

[0151] In some embodiments, please refer to Figures 4 to 7 , and in conjunction with other drawings. The fixed structure 1 is provided within the accommodating chamber 101 with a first wall 102 and a second wall 103 that oppose each other along a first direction Y. The moving member 21 is disposed through the first wall 102 and is configured to reciprocate relative to the fixed structure 1 along the first direction Y. The limiting member 22 is disposed between the first wall 102 and the second wall 103. When the limiting member 22 moves toward the second wall 103 along the first direction Y, the valve 23 is configured to rotate toward the first wall 102 to open the first through-slot 201.

[0152] It should be noted that the movement of the limiting member 22 toward the second wall 103 along the first direction Y refers to the positive movement of the limiting member 22 along the first direction Y. The movement of the limiting member 22 toward the first wall 102 along the first direction Y refers to the negative movement of the limiting member 22 along the first direction Y.

[0153] It is understood that during the forward rotation of the pedal 60, when the moving member 21 moves forward in the first direction Y, the limiting member 22 also moves in the first direction Y toward the second wall 103. Under the action of the liquid, the valve 23 rotates toward the first wall 102 to open the first through-slot 201. The liquid within the accommodating chamber 101, located on the side of the limiting member 22 facing the second wall 103, flows through the first through-slot 201 to the other side of the limiting member 22, thereby adaptively flowing along the limiting member 22 to provide stable damping for the limiting member 22.

[0154] When the driving force for the forward rotation of the pedal 60 is removed, the driving force for the forward movement of the moving member 21 and the limiting member 22 in the first direction Y is removed, and the elastic structure 3 resets to drive the limiting member 22 to move in the reverse direction in the first direction Y. The liquid in the accommodating chamber 101 located on the side of the limiting member 22 facing the first wall 102 flows through the first through groove 201 to the other side of the limiting member 22, and the valve 23 gradually closes the first through groove 201.

[0155] By adopting the above technical solution, the valve 23 can automatically and adaptively open or close the first through groove 201 during the movement of the motion structure 2 in the first direction Y, allowing the liquid in the accommodating chamber 101 to adaptively flow along the stopper 22 to provide damping for the stopper 22. In this way, stable damping can be provided to the motion structure 2, and the magnitude of the damping can be precisely controlled, thereby improving the damping feel of the pedal simulator 10 and helping to meet the required force hysteresis.

[0156] In some embodiments, please refer to Figures 4 to 7 The limiting member 22 includes a limiting portion 222 , which is disposed opposite to the first through slot 201 and is used to limit the valve 23 to limit the opening stroke of the valve 23 .

[0157] It is understandable that the limiting member 22 may include a main body 221 and a limiting portion 222, which are two parts of the limiting member 22. The main body 221 is provided with a first through slot 201 along the first direction Y, and the valve 23 is rotatably connected to the main body 221.

[0158] The limiting portion 222 is connected to the main body 221 , and a portion of the limiting portion 222 away from the main body 221 is disposed opposite to the first through slot 201 along the first direction Y.

[0159] By adopting the above technical solution, after the valve 23 opens the first through-slot 201, the portion of the valve 23 away from the main body 221 can be restrained by the stopper 222, thereby limiting the opening stroke of the valve 23. This facilitates the subsequent automatic closing of the first through-slot 201 by the valve 23. This arrangement facilitates the adaptive flow of fluid along the stopper 22, thereby providing damping for the stopper 22.

[0160] In some embodiments, please refer to Figure 4 and Figure 5 The pedal simulator 10 further comprises a support member 6 disposed on the fixed structure 1 , and the support member 6 is sleeved on the outer periphery of the moving member 21 .

[0161] The support member 6 is a component for supporting the moving member 21 .

[0162] It can be understood that the support member 6 is provided between the outer periphery of the moving member 21 and the fixed structure 1 .

[0163] A support member 6 may be provided between the inner circumferential wall 104 of the first installation groove 105 and the outer circumferential wall of the moving part 21 , and a support member 6 may also be provided between the inner circumferential wall 104 of the second installation groove 106 and the outer circumferential wall of the moving part 21 .

[0164] The supporting member 6 is fixed on the fixing member, and the moving member 21 is movably disposed along the first direction Y through the supporting member 6 .

[0165] By providing the support member 6 to support the moving member 21 , the moving structure 2 can stably reciprocate relative to the fixed structure 1 , which helps to improve the pedaling feel of the pedal 60 .

[0166] In some embodiments, please refer to Figure 4 and Figure 5 The pedal simulator 10 further includes an elastic structure 3 , at least part of which is connected between the fixed structure 1 and the moving structure 2 along the moving direction of the moving structure 2 . The elastic structure 3 is sleeved around the outer periphery of the moving part 21 .

[0167] Such an arrangement enables the elastic structure 3 to uniformly provide a force to the limiting member 22 , thereby facilitating the stable reverse movement of the motion structure 2 .

[0168] In some embodiments, please refer to Figure 4 and Figure 5 The pedal simulator 10 further includes an elastic structure 3 , which includes a plurality of elastic members 31 . The plurality of elastic members 31 abut against each other in sequence along the first direction Y and abut between the second wall 103 and the limiting member 22 .

[0169] The elastic member 31 is a component of the elastic structure 3 with elastic properties. The elastic member 31 can be, but is not limited to, a spring, a spring sheet, or other components.

[0170] In some embodiments, please refer to Figure 4 and Figure 5In the direction from the first wall 102 to the second wall 103 along the first direction Y, the structural strength of the plurality of elastic members 31 is gradually increased.

[0171] Because the elastic structure 3 includes multiple elastic members 31 that sequentially abut against the motion structure 2 along its direction of movement, it possesses superior elastic properties, thereby providing a relatively stable and high-intensity reaction force to the motion structure 2. Furthermore, along the direction from the first wall 102 toward the second wall 103 along the first direction Y, the structural strength of the multiple elastic members 31 is arranged to gradually increase. This means that the multiple elastic members 31 of the elastic structure 3 are graded, allowing the pedal 60 to rotate in the forward direction. This makes it increasingly difficult for the motion structure 2 to squeeze the elastic structure 3 during forward movement of the motion structure 2. This allows the elastic structure 3 to accurately simulate the feel of the pedal 60 during rotation, meeting the force-stroke curve requirements of the pedal 60 and ensuring a smooth transition.

[0172] In some embodiments, please refer to Figure 4 、 Figure 5 and Figure 8 , and combined with other drawings. Among them, Figure 8 Schematic diagram of the limiting member 22 of the pedal simulator 10 provided in some embodiments of the present application, Figure 8 The limiting member 22 is substantially perpendicular to the first direction Y. The pedal simulator 10 further includes an elastic structure 3, which includes a plurality of elastic members 31. The plurality of elastic members 31 abut against the second wall 103 and the limiting member 22 in sequence along the first direction Y. The elastic member 31 includes an outer ring portion 311 and a plurality of elastic arms 312. The plurality of elastic arms 312 are connected to the inner circumference of the outer ring portion 311 at intervals along the circumferential direction.

[0173] The elastic arm 312 and the outer ring portion 311 are two parts of the elastic member 31 .

[0174] The elastic arm 312 and the outer ring portion 311 may be integrally provided or separately connected.

[0175] The multiple elastic arms 312 are spaced apart along the circumference, giving the elastic member 31 excellent elastic properties. Furthermore, the space formed between two adjacent elastic arms 312 can be used to allow the liquid in the accommodating chamber 101 to flow. This facilitates the adaptive flow of the liquid in the accommodating chamber 101 along with the moving structure 2, thereby providing damping for the moving structure 2.

[0176] In some embodiments, the plurality of elastic arms 312 of the elastic member 31 are disposed around the outer circumference of the moving member 21 , and the outer ring portion 311 is also disposed around the outer circumference of the moving member 21 .

[0177] In some embodiments, please refer to Figure 4 、 Figure 5and Figure 8 The pedal simulator 10 further includes an elastic structure 3, which includes a plurality of elastic members 31. The plurality of elastic members 31 abut against each other in sequence along the first direction Y and abut between the second wall 103 and the limiting member 22. The elastic members 31 are disc springs.

[0178] By configuring the elastic member 31 as a disc spring, the elastic structure 3 has better elastic properties, thereby providing the motion structure 2 with a relatively stable and high-intensity reaction force.

[0179] By adopting the above technical solution, the structure of the elastic structure 3 for providing a reaction force to the motion structure 2 is made very simple, thereby simplifying the structure of the entire pedal simulator 10 and reducing the cost.

[0180] In some embodiments, please refer to Figure 4 and Figure 5 , and in combination with other drawings, the elastic member 31 is substantially conical in shape. Moreover, the conical extension directions of any two adjacent elastic members 31 are arranged in opposite directions.

[0181] In this way, the elastic structure 3 can have better elastic performance, thereby providing the motion structure 2 with a more stable and higher-intensity reaction force.

[0182] Please also refer to Figure 1 and Figure 2 , and in conjunction with other drawings. The brake-by-wire system 100 provided in the embodiment of the present application includes a pedal simulator 10. The pedal simulator 10 in this embodiment is the same as the pedal simulator 10 in the above embodiments. For details, please refer to the relevant descriptions of the pedal simulator 10 in the above embodiments, which will not be repeated here.

[0183] The motion structure 2 of the pedal simulator 10 is rotatably connected to the pedal 60 .

[0184] The wire control braking system 100 provided in the embodiment of the present application, by adopting the pedal simulator 10 involved above, can accurately control the size of the damping during the wire control braking process, improve the damping feel of the pedal simulator 10, and help meet the force lag requirements.

[0185] In some embodiments, please refer to Figure 1 and Figure 2 , and in conjunction with other figures. The brake-by-wire system 100 further includes a base structure 50 and a pedal 60. The pedal 60 is rotatably connected to the base structure 50, and the rotation axis L of the pedal 60 is parallel to the direction of movement of the motion structure 2. The fixed structure 1 is mounted on the base structure 50, and the pedal 60 is connected to the motion structure 2 and is used to drive the motion structure 2 to move when rotating.

[0186] By adopting the above technical solution, when the pedal 60 rotates, the motion structure 2 can move under the drive of the pedal 60, and the liquid in the accommodating cavity 101 of the fixed structure 1 can provide damping to the motion structure 2, thereby improving the damping feeling of the pedal simulator 10 and helping to meet the force hysteresis requirements.

[0187] Specifically, when the pedal 60 rotates in the forward direction, the motion structure 2 moves under the drive of the pedal 60 .

[0188] As an example, the outer periphery of the moving member 21 of the motion structure 2 is provided with a conical surface, and the pedal 60 is provided with a resisting portion. When the pedal 60 rotates, the conical surface of the moving member 21 can push the motion structure 2 to move the motion structure 2.

[0189] See also Figure 1 The vehicle 1000 provided in the embodiment of the present application includes a brake-by-wire system 100. The brake-by-wire system 100 in this embodiment is the same as the brake-by-wire system 100 in the above embodiments. For details, please refer to the relevant descriptions of the brake-by-wire system 100 in the above embodiments, which will not be repeated here.

[0190] The vehicle 1000 provided in the embodiment of the present application adopts the above-mentioned wire control braking system 100, so that the vehicle 1000 can accurately control the size of the damping during the wire control braking process, improve the damping feel of the pedal simulator 10, and help meet the force lag requirements.

[0191] As one of the embodiments of this application, Figure 4 and Figure 5As shown, the pedal simulator 10 includes a fixed structure 1, a moving structure 2 and an elastic structure 3. A accommodating chamber 101 is provided in the fixed structure 1, and the accommodating chamber 101 is used to accommodate liquid. The fixed structure 1 is provided with a first wall 102 and a second wall 103 opposite to each other along a first direction Y in the accommodating chamber 101, and is also provided with an outer peripheral wall connected between the first wall 102 and the second wall 103. The moving structure 2 includes a moving part 21 and a limiting part 22 sleeved on the outer periphery of the moving part 21, and the moving part 21 can be movably provided along the first direction Y through the first wall 102 and the second wall 103. The limiting part 22 is provided in the accommodating chamber 101 and is located between the first wall 102 and the second wall 103. The inner peripheral wall 104 is provided around the outer periphery of the limiting part 22, and a first gap 7 is formed between the limiting part 22 and the inner peripheral wall 104. The limiting member 22 is provided with a first through-slot 201 extending along the first direction Y. The motion structure 2 further includes a valve 23, which is rotatably connected to the limiting member 22 and is used to open or close the first through-slot 201. The elastic structure 3 abuts between the second wall 103 and the limiting member 22 along the first direction Y. The elastic structure 3 includes a plurality of elastic members 31, each of which is a disc spring, abutting against the limiting member 22 in sequence along the first direction Y. The pedal 60 is rotatably connected to the moving member 21. When the pedal 60 rotates in the forward direction, the moving member 21 moves along the first direction Y toward the second wall 103, and the valve 23 opens the first through-slot 201 under the action of the liquid in the accommodating chamber 101, and the liquid provides damping for the limiting member 22.

[0192] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A pedal simulator, characterized in that include: A fixed structure with an internal accommodating cavity; a moving structure, connected to the fixed structure so as to be reciprocatable and partially located in the accommodating cavity; The accommodating chamber is used to accommodate liquid that provides damping for the movement of the moving structure.

2. The pedal simulator according to claim 1, characterized in that The motion structure includes: A moving part, connected to the fixed structure so as to be reciprocatingly movable; The limiting member is fixedly connected to the moving member and is located in the accommodating cavity; the liquid in the accommodating cavity is at least used to provide damping for the movement of the limiting member.

3. The pedal simulator according to claim 2, characterized in that Part of the moving part is located in the accommodating cavity, and the limiting part is sleeved on the outer periphery of the moving part.

4. The pedal simulator according to claim 2, characterized in that The fixed structure is provided with a first wall and a second wall opposite to each other along a first direction in the accommodating cavity; the moving member is passed through the first wall and is used to move back and forth relative to the fixed structure along the first direction; the limiting member is provided between the first wall and the second wall.

5. The pedal simulator according to claim 4, characterized in that The moving part is arranged through the second wall.

6. The pedal simulator according to claim 5, characterized in that The fixing structure includes a first end, a second end, and a sleeve portion, wherein the sleeve portion is provided through the first direction, and the first end and the second end are respectively provided at opposite ends of the sleeve portion along the first direction, and are surrounded by the sleeve portion to form the accommodating cavity; A first mounting groove is formed through the first end portion along the first direction, and the first wall is provided at an end of the first end portion opposite to the second end portion; A second mounting groove is formed in the second end portion along the first direction, and the second wall is provided at an end of the second end portion opposite to the first end portion; The moving part is inserted into the first mounting slot and the second mounting slot; A first sealing ring is provided between the inner peripheral wall of the first installation groove and the outer peripheral wall of the moving part, and / or a second sealing ring is provided between the inner peripheral wall of the second installation groove and the outer peripheral wall of the moving part.

7. The pedal simulator according to claim 4, characterized in that The fixed structure is provided with an inner circumferential wall in the accommodating cavity, the inner circumferential wall is connected between the first wall and the second wall, and is arranged around the outer circumference of the moving part and the limiting part; a first gap for liquid flow is formed between the limiting part and the inner circumferential wall.

8. The pedal simulator according to claim 2, characterized in that Along the moving direction of the motion structure, the limiting member is provided with a first through groove; the motion structure further includes a valve connected to the limiting member, and the valve is used to open or close the first through groove under the action of the liquid in the accommodating chamber.

9. The pedal simulator according to claim 8, characterized in that The valve is rotatably connected to the limiting member and is used to rotate relative to the limiting member under the action of the liquid in the accommodating chamber to open or close the first through groove.

10. The pedal simulator according to claim 9, characterized in that The fixed structure is provided with a first wall and a second wall opposite to each other along a first direction in the accommodating cavity; the moving member is provided through the first wall and is used to reciprocate relative to the fixed structure along the first direction; the limiting member is provided between the first wall and the second wall; When the limiting member moves toward the second wall along the first direction, the valve is configured to rotate toward the first wall to open the first through slot.

11. The pedal simulator according to claim 9, characterized in that The limiting member includes a limiting portion, a portion of which is arranged opposite to the first through groove and is used to limit the valve to restrict the opening stroke of the valve.

12. The pedal simulator according to any one of claims 2 to 11, characterized in that: The pedal simulator further includes a support member arranged on the fixed structure, and the support member is sleeved on the outer periphery of the moving member.

13. The pedal simulator according to any one of claims 1 to 11, characterized in that: The pedal simulator further includes an elastic structure, at least a portion of which is connected between the fixed structure and the moving structure along a moving direction of the moving structure.

14. The pedal simulator according to any one of claims 2 to 11, characterized in that: The pedal simulator further includes an elastic structure. Along the moving direction of the moving structure, at least a portion of the elastic structure is connected between the fixed structure and the moving structure, and the elastic structure is sleeved on the outer periphery of the moving part.

15. The pedal simulator according to claim 4, characterized in that The pedal simulator further includes an elastic structure, the elastic structure including a plurality of elastic members, the plurality of elastic members abutting in sequence along the first direction and abutting between the second wall and the limiting member; In a direction from the first wall to the second wall along the first direction, the structural strengths of the plurality of elastic members are gradually increased.

16. The pedal simulator according to claim 4, characterized in that The pedal simulator further includes an elastic structure, the elastic structure including a plurality of elastic members, the plurality of elastic members abutting in sequence along the first direction and abutting between the second wall and the limiting member; the elastic member includes: Outer ring; A plurality of elastic arms are connected to the inner circumference of the outer ring portion at intervals along the circumferential direction.

17. The pedal simulator according to claim 4, characterized in that The pedal simulator further includes an elastic structure, which includes a plurality of elastic members. The plurality of elastic members abut in sequence along the first direction and abut between the second wall and the limiting member. The elastic members are disc springs.

18. A brake-by-wire system, characterized in that: Comprising a pedal simulator according to any one of claims 1-17.

19. The brake-by-wire system according to claim 18, wherein: The brake-by-wire system further comprises: Base structure; A pedal is rotatably connected to the base structure, and the rotation axis of the pedal is parallel to the moving direction of the motion structure; the fixed structure is installed on the base structure, and the pedal is connected to the motion structure and is used to drive the motion structure to move when rotating.

20. A vehicle, characterized in that: Comprising a brake-by-wire system according to claim 18 or 19.

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