Damping pedal
By introducing elastic damping components and preload structures into the brake pedal, and dynamically adjusting the damping force using a motor or air compressor, the problem of the existing pedal's inability to be adjusted is solved, achieving multi-level, environmentally friendly, and low-energy-consumption foot feel adjustment.
Patent Information
- Application Number
- CN202511937595.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-02-10
AI Technical Summary
The existing brake pedal cannot be adjusted according to user needs, resulting in reduced driving fatigue and enjoyment. At the same time, the existing adjustable solutions are energy-intensive or environmentally unfriendly, and cannot meet the requirements of multiple adjustment levels.
Design a damping pedal that includes a foot pedal, an elastic damping element, and a preload structure. The preload of the elastic damping element is dynamically adjusted by a motor or air compressor, providing three or more levels of foot-feel damping and achieving electric adjustment.
It achieves multiple levels of foot feel adjustment, reduces energy consumption and environmental pollution, allows users to adjust the foot feel at will, reduces costs, and expands the adjustable levels of foot feel.
Smart Images
Figure CN121492867A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive mechanics, and more particularly to a damping pedal. Background Technology
[0002] Currently, brake pedals in braking systems are all mechanical pedals with fixed damping. Once the car is sold, users cannot change the pedal feel according to their needs, causing driving fatigue or reduced driving pleasure. If users need to adjust the brake pedal force, they need to go to a professional place such as a 4S shop for adjustment or replacement. However, the same car may be driven by people of different ages and genders. Each time they go to a professional place for adjustment, it is time-consuming and expensive. Therefore, users expect a variable damping brake pedal that they can actively adjust according to their needs.
[0003] Currently, most solutions on the market focus on directly changing the spring stiffness, such as using magnetorheological materials or electromagnetic coils. These products require a constant power supply to maintain the change in spring stiffness, which consumes a lot of energy and does not meet the energy-saving requirements of new energy vehicles. Another type achieves damping changes by changing the spring compression, such as using a hydraulic system. However, this requires adding hydraulic fluid, which does not align with the current environmental protection requirements to reduce the use of hydraulic systems. This type of solution also offers limited adjustable feel levels and cannot meet users' diverse adjustment needs.
[0004] Therefore, developing an adjustable damping pedal that can adjust the pedal feel in multiple levels, consumes little energy, and is environmentally friendly has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0005] To address the aforementioned technical deficiencies, the present invention aims to provide a damping pedal that offers three or more levels of foot feel damping, expanding the adjustable range of foot feel and reducing environmental pollution.
[0006] This invention provides a damping pedal, comprising: Foot pedal; including a footrest surface, which is the contact surface for the driver's foot to step on; At least two elastic damping elements are disposed on the side opposite to the foot pedal surface; the elastic damping elements can deform as the pedal travel changes to provide damping force to the pedal; A pre-compression structure, connected to the elastic damping element, is used to provide pre-compression to the elastic damping element; The pre-compression structure is configured to dynamically adjust the action mode of the elastic damping element to change the magnitude of the damping force applied by the elastic damping element to the foot pedal, so that the damping pedal can provide more than three levels of foot feel damping. The pre-compression structure has a first configuration or a second configuration, and the pre-compression structure can adjust the operating mode in the first configuration or the second configuration; The first configuration includes: being able to act independently on one of them, and being able to act simultaneously on at least two of the elastic damping elements; The second configuration includes: acting individually but not simultaneously on any one of them, and acting simultaneously on at least two of the elastic damping elements.
[0007] Optionally, the preload structure is configured to provide a fixed preload for each of the elastic damping elements.
[0008] Optionally, the preload structure is configured to provide a variable preload for each of the elastic damping elements.
[0009] Optionally, the pre-compression structure has the first configuration, and the pre-compression structure includes: At least two damping push rods; each damping push rod is connected to the end of each elastic damping element away from the foot pedal; the arrangement direction of the damping push rods is consistent with the arrangement direction of the elastic damping elements and they are connected in a one-to-one correspondence. A driving device; a driving output section is provided at one end of the driving device; after assembly, the pre-compression structure is configured such that: the driving device can drive the driving output section to move along the arrangement direction of the damping push rods, and can sequentially push up each of the damping push rods along the moving direction to provide pre-compression force to each of the elastic damping elements, so that the pre-compression structure can act on one of them individually, and can act on at least two of the elastic damping elements simultaneously.
[0010] Optionally, the preload structure is configured such that the contact portion between the drive output end and the damping push rod is slidably engaged, such that: When the driving device drives the driving output end to move along the arrangement direction of the damping push rod, it can push up the damping push rod.
[0011] Optionally, the contact portion between the drive output end and the damping push rod is configured as a wedge-shaped structure that cooperates with each other.
[0012] Optionally, the acute angle of the mutually cooperating wedge structure is 30° to 45°.
[0013] Optionally, the driving device includes: a drive motor, a gear set, and a motor output end connected in sequence; the drive motor drives the gear set, causing the motor output end to move sequentially toward the contact portion of each of the elastic damping push rods.
[0014] Optionally, the pre-compression structure has the second configuration, and the pre-compression structure includes: at least two air springs, each connected to one of the elastic damping elements; used to provide pre-pressure to the elastic damping elements after inflation; At least two air tubes are connected to each of the aforementioned air springs; Air valve; connected to the air pipe, used to control the air intake of each of the elastic damping elements respectively; An air compressor; connected to each of the aforementioned air pipes via air valves; used to provide an air source; After assembly, the gas output from the air compressor enters each of the air springs through the air valves and air pipes, inflating each air spring so that the pre-compression structure can act individually or not simultaneously on any one of them, and can act simultaneously on at least two of the elastic damping elements.
[0015] Optionally, the damping pedal further includes: the preload structure is configured to allow the air intake of the air spring to be changed via the air valve, so as to provide a variable preload for each of the elastic damping elements.
[0016] Compared with existing technologies, the above technical solution has the following advantages:
[0017] 1. The damping pedal provided by the present invention can provide three or more levels of foot feel damping, thus expanding the adjustable levels of foot feel.
[0018] 2. This invention uses a motor or air compressor to change the magnitude of the damping force applied to the foot pedal by the elastic damping component, making it electric and allowing users to change the foot feel at any time and according to their needs.
[0019] 3. No hydraulic system required, reducing environmental pollution; it only operates during adjustment and does not require electricity at other times, saving energy; it is low-cost and can perform its function without the need for expensive materials. Attached Figure Description
[0020] Figure 1 A cross-sectional view of a damping pedal structure according to an embodiment of the present invention is shown; Figure 2 It shows Figure 1 Schematic diagram of damping pedal structure in state 1; Figure 3 It shows Figure 2 A graph showing the change in pedal damping force as a function of pedal travel in the corresponding state. Figure 4 It shows Figure 1 Schematic diagram of damping pedal structure in state 2; Figure 5 It shows Figure 4 A graph showing the change in pedal damping force as a function of pedal travel in the corresponding state. Figure 6 It shows Figure 1 Schematic diagram of damping pedal structure in state 3; Figure 7 It shows Figure 6 A graph showing the change in pedal damping force as a function of pedal travel in the corresponding state. Figure 8 It shows Figure 1 Schematic diagram of damping pedal structure state 4; Figure 9 It shows Figure 8 A graph showing the change in pedal damping force as a function of pedal travel in the corresponding state. Figure 10(a) shows a schematic diagram of the contact portion between the drive output terminal and the damping push rod according to an embodiment of the present invention. Figure 1 ; Figure 10(b) shows a schematic diagram of the contact portion between the drive output terminal and the damping push rod according to an embodiment of the present invention. Figure 2 ; Figure 10(c) shows a schematic diagram of the contact portion between the drive output terminal and the damping push rod according to an embodiment of the present invention. Figure 3 ; Figure 11 A cross-sectional view of a damping pedal structure conforming to another embodiment of the present invention is shown; Figure 12 It shows Figure 11 A schematic diagram of the fit between the preloaded structure and the elastic damping component; Figures 13(a) and 13(b) respectively show Figure 11 A schematic diagram of the air spring in the damping pedal structure before and after inflation; Figure 14 and Figure 15 They are shown respectively Figure 11 The graphs shown show the changes in pedal damping force with pedal travel in states 000 and 110. Figure label: 1-Foot pedal; 101-Foot tread; 2, 6 or 10-Elastic damping element; 3, 5 or 8-Damping element push rod; 4-Motor output end; 7-Base plate; 9-Intermediate partition; 11, 12, 13-Air spring; 14, 15, 16-Air pipe; 17-Air compressor. Detailed Implementation
[0021] The advantages of the present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments.
[0022] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.
[0023] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
[0024] In the description of this invention, it should be understood that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.
[0025] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0026] In the following description, suffixes such as "module," "part," or "unit" used to denote elements are used only for the convenience of the description of the invention and have no specific meaning in themselves. Therefore, "module" and "part" can be used interchangeably.
[0027] Figure 1 or Figure 11 A damping pedal conforming to different embodiments of the present invention is shown respectively. See also... Figure 1 or Figure 11 The damping pedal includes: a foot pedal 1; the foot pedal 1 includes a foot tread surface 101, which is a contact surface for the driver's foot to step on.
[0028] At least two elastic damping elements 2, 6, or 10 are disposed on the side opposite to the foot pedal surface 101; the elastic damping elements 2, 6, or 10 can deform as the travel of the foot pedal 1 changes, thereby providing damping force to the foot pedal 1. A preload structure is connected to the elastic damping elements 2, 6, or 10 and is used to provide preload to the elastic damping elements 2, 6, or 10. The preload structure is configured to dynamically adjust the action mode of the elastic damping elements 2, 6, or 10 to indirectly change the magnitude of the damping force applied by the elastic damping elements 2, 6, or 10 to the foot pedal 1, such that the damping pedal can provide three or more levels of foot feel damping.
[0029] The preload structure has a first configuration or a second configuration, and the preload structure can adjust its operating mode in either the first or second configuration. The first configuration includes: being able to act individually on one of all the elements, and being able to act simultaneously on at least two of the elastic damping elements 2, 6, or 10. The second configuration includes: acting individually but not simultaneously on any one of the elements, and being able to act simultaneously on at least two of the elastic damping elements 2, 6, or 10.
[0030] This invention provides damping force to the foot pedal 1 by setting two or more elastic damping elements 2, 6 or 10. The pre-compression structure connects each elastic damping element 2, 6 or 10, and can act on one of them individually, or on at least two of them simultaneously, or act on any one of them individually but not simultaneously, or act on at least two of them simultaneously, so as to change the magnitude of the damping force applied by the elastic damping elements 2, 6 or 10 to the foot pedal 1. This allows the damping pedal to provide more than three levels of foot feel damping, expanding the range of foot feel adjustment.
[0031] In one alternative embodiment, the preload structure is configured to provide a fixed preload for each of the elastic damping elements 2, 6, or 10. In this embodiment, the number of damping levels provided by the damping pedal depends on the number of elastic damping elements 2, 6, or 10 that the preload structure can operate on; the more elastic damping elements 2, 6, or 10 there are, the more adjustable levels there are.
[0032] like Figure 1As shown, in a further preferred embodiment, a drive motor is configured to drive damping push rods to provide preload to the elastic damping elements 2, 6, or 10. The preload structure has the first configuration and includes: at least two damping push rods 3, 5, or 8; each damping push rod 3, 5, or 8 is connected to the end of each elastic damping element 2, 6, or 10 away from the foot pedal 1; the arrangement direction of the damping push rods 3, 5, or 8 is consistent with and correspondingly connected to the arrangement direction of the elastic damping elements 2, 6, or 10; a drive device; one end of the drive device is provided with a drive output section; the drive device can drive the drive output section to move along the arrangement direction of the elastic damping elements 2, 6, or 10. After assembly, the pre-compression structure is configured such that the drive device can drive the drive output end to move along the arrangement direction of the damping push rods 3, 5, or 8, and can sequentially push up each of the damping push rods 3, 5, or 8 along the moving direction to provide pre-pressure to each of the elastic damping elements 2, 6, or 10, so that the pre-compression structure can act individually on one of them, or simultaneously on at least two of the elastic damping elements 2, 6, or 10. The drive device includes: a drive motor, a gear set, and a motor output end 4 connected in sequence; the drive motor drives the gear set, causing the motor output end 4 to move sequentially towards the contact portion of each elastic damping push rod. In a specific example, a U-shaped motor design can be used to make the overall structure more compact. Through structural integration design, one motor can simultaneously adjust the stiffness of three springs, further reducing costs and space requirements.
[0033] Optionally, the preload structure is configured such that the contact portion between the drive output end and the damping push rod is slidably engaged, so that when the drive device drives the drive output end to move along the arrangement direction of the damping push rods 3, 5 or 8, it can push up the damping push rods 3, 5 or 8.
[0034] In one optional example, the contact portion between the drive output end and the damping push rod is configured as a wedge-shaped structure that cooperates with each other, as shown in Figure 10(a). In other examples, the contact portion between the drive output end and the damping push rod is either spherical or has large rounded corners, as shown in Figure 10(b) or Figure 10(c). In other optional embodiments, the contact portion between the drive output end and the damping push rod is configured with other mutually cooperating structures. Any solution that can achieve the sliding fit objective of this invention is within the protection scope of this invention.
[0035] In a preferred embodiment, the acute angle of the mutually cooperating wedge structure is 30° to 45°.
[0036] Figure 1Taking the specific embodiment shown (a brake pedal structure with 3 springs) as an example, the damping pedal is provided by three springs. In this embodiment, a motor adjusts the compression of the three springs. The first spring contacts the foot pedal 1 and the first damping element push rod; the second spring contacts the intermediate partition plate 9 and the second damping element push rod; and the third spring contacts the foot pedal 1 and the third damping element push rod. The motor output end 4 pushes the first, second, and third damping element push rods up and down. The base plate 7 supports the first and second damping element push rods, and the intermediate partition plate 9 supports the third damping element push rod. The drive motor, gear set, and motor output end 4 together form the drive device. The damping element push rods 8, 5, and 3 are the first, second, and third damping element push rods, respectively. The three elastic damping elements 10, 6, and 2 are the first, second, and third springs, respectively.
[0037] II. Foot pedal damping settings, including states 1 to 4: Figures 2-9 It shows Figure 1 Schematic diagrams of the preload effect of damping pedal structure states 1-4, and curves showing the change of pedal damping force with pedal stroke for each state.
[0038] Figure 2 It shows Figure 1 Schematic diagram of damping pedal structure, state 1. Figure 3 It shows Figure 2 A graph showing the change in pedal damping force as a function of pedal travel under different conditions. (Combined with...) Figure 2 and Figure 3 State 1: The motor is not moving. At this time, the three damping push rods are in their original positions, the spring is not compressed, and the entire foot braking stroke is divided into three segments according to the spring action stage: 0-15mm, maximum 40N; 15-25mm, maximum 100N; 25-40mm, maximum 300N.
[0039] Figure 4 It shows Figure 1 Schematic diagram of damping pedal structure in state 2. Figure 5 It shows Figure 4 A graph showing the change in pedal damping force as a function of pedal travel under different conditions. (Combined with...) Figure 4 and Figure 5 State 2: The motor pushes the first damping push rod to lift up, the spring is compressed, the damping force of the first section increases, the maximum increases from 40 to 60N, and the remaining sections remain unchanged.
[0040] Figure 6 It shows Figure 1 Schematic diagram of damping pedal structure in state 3. Figure 7 It shows Figure 6 A graph showing the change in pedal damping force as a function of pedal travel under different conditions. (Combined with...) Figure 6 and Figure 7 State 3: The motor pushes the second damping push rod to lift up, the spring is compressed, and the second damping force increases, from a maximum of 120 to 150N.
[0041] Figure 8 It shows Figure 1 Schematic diagram of damping pedal structure state 4. Figure 9 It shows Figure 8 A graph showing the change in pedal damping force as a function of pedal travel under different conditions. (Combined with...) Figure 8 and Figure 9 State 4: The motor continues to push to the right, the third damping push rod is lifted, the spring is compressed, the third stage damping increases, the maximum increases from 350 to 400N.
[0042] Throughout the process, the driver's foot travel remains constant, but the damping resistance offers four different levels to meet varying customer needs. A wedge-shaped structure, similar to a machining tool, is designed between the motor output and the spring damping push rod to push up the spring push rod. The angle of this wedge structure needs to be adjusted according to the spring's orientation (optimal angle 30-45°) to improve smoothness and lifespan. The wedge-shaped mating structure in this application needs to be protected, and the addition of self-lubricating material on the mating surfaces to improve smoothness also requires protection. Various motor types can meet the requirements of this application, such as DC motors, brushless motors, stepper motors, etc.
[0043] In a preferred embodiment, the preload structure is configured to provide a variable preload for each of the elastic damping elements 2, 6, or 10, thereby providing a steplessly variable preload for the foot pedal 1, and providing a greater number of adjustable gears with a limited number of elastic damping elements 2, 6, or 10.
[0044] Figure 11 A cross-sectional view of a damping pedal structure conforming to another embodiment of the present invention is shown. Figure 12 It shows Figure 11 A schematic diagram of the fit between the preload structure and the elastic damping component.
[0045] See Figure 11 and Figure 12The damping pedal is equipped with an air compressor 17 and air springs 11, 12, and 13 to provide pre-pressure for the elastic damping elements 2, 6, or 10. Optionally, the pre-pressure structure has the first configuration, comprising: at least two air springs 11, 12, and 13, respectively connected to each of the elastic damping elements 2, 6, or 10; used to provide pre-pressure to the elastic damping elements 2, 6, or 10 after inflation; at least two air pipes 14, 15, and 16, respectively connected to each of the air springs 11, 12, and 13; an air valve connected to the air pipes 14, 15, and 16, used to control the air intake of each of the elastic damping elements 2, 6, or 10; and an air compressor 17 connected to each of the air pipes 14, 15, and 16 via the air valve, used to provide an air source. After assembly, the gas output from the air compressor 17 enters each of the air springs 11, 12, and 13 through the air valve and each of the air pipes 14, 15, and 16, respectively, to inflate each of the air springs 11, 12, and 13, thereby providing pre-pressure to each of the elastic damping elements 2, 6, or 10, so that the pre-pressure structure can act individually but not simultaneously on any one of them, and can act simultaneously on at least two of the elastic damping elements 2, 6, or 10.
[0046] Optionally, the pre-compression structure is configured such that the air intake of the air springs 11, 12, and 13 can be changed via the air valve to provide a variable pre-compression for each of the elastic damping elements 2, 6, or 10, as shown in Figures 13(a) and 13(b) before and after the air springs are inflated.
[0047] The following is based on Figure 15 The following is an example of the embodiment shown (a brake pedal structure with 3 springs as the elastic damping element) to illustrate the specific structure and pedal damping positions:
[0048] I. The specific structure of the damping pedal includes: The specific structure and damping positions of the foot pedal are explained as follows: In this embodiment, a small air compressor is used to adjust the height of air springs 11, 12, and 13, thereby adjusting the compression of the three springs. The first spring is in contact with the foot pedal 1 and the first air spring 13, which is also in contact with the base plate 7 and supplied with air through the first air pipe 16. The second spring is in contact with the middle partition 9 and the second air spring 12, which is also in contact with the base plate 7 and supplied with air through the second air pipe 15. The third spring is in contact with the foot pedal 1 and the third air spring 11, which is also in contact with the base plate 7 and supplied with air through the third air pipe 14. The air intake through the solenoid valves of the first air pipe 16, the second air pipe 15, and the third air pipe 14 is controlled, and the small air compressor 17 provides the air source. The three elastic damping components 10, 6, and 2 are the first, second, and third springs, respectively.
[0049] II. Foot Pedal Damping Settings: The height of the air spring changes before and after inflation, and different amounts of compression are applied to the metal spring to change the spring stiffness, thereby changing the driver's foot feel. The specific changes in foot feel in each state are as follows:
[0050] In a specific example, the curves showing the change in pedal damping force with pedal travel in the 000 and 110 states can be found by referring to... Figure 14 and Figure 15 .
[0051] Furthermore, the changes in each stroke can be calibrated by controlling the intake air volume, as shown in the table below:
[0052] In summary, this invention uses a motor and an air compressor to change the damping force applied to the foot pedal by the elastic damping element. This electrification allows users to adjust the foot feel at any time according to their needs; it eliminates the need for hydraulics, reducing environmental pollution; it operates only during adjustment, saving energy; it is low-cost, as the motor actuator industry is very mature, and the function can be accomplished without expensive materials; it also provides three or more levels of foot feel damping, expanding the range of foot feel adjustments. This invention is applicable to various scenarios, depending on the vehicle model and user group, where more than two springs are used, such as dual-spring, four-spring, etc.
Claims
1. A damping pedal, characterized in that, include: Foot pedal; Includes a footrest surface, which is the contact surface for the driver's feet; At least two elastic damping elements are disposed on the side opposite to the foot pedal surface; the elastic damping elements can deform as the pedal travel changes to provide damping force to the pedal; A pre-compression structure, connected to the elastic damping element, is used to provide pre-compression to the elastic damping element; The pre-compression structure is configured to dynamically adjust the action mode of the elastic damping element to change the magnitude of the damping force applied by the elastic damping element to the foot pedal, so that the damping pedal can provide more than three levels of foot feel damping. The pre-compression structure has a first configuration or a second configuration, and the pre-compression structure can adjust the operating mode in the first configuration or the second configuration; The first configuration includes: being able to act independently on one of all elastic damping elements, and being able to act simultaneously on at least two of the elastic damping elements; The second configuration includes: acting individually but not simultaneously on any one of them, and acting simultaneously on at least two of the elastic damping elements.
2. The damping pedal as described in claim 1, characterized in that, The preload structure is configured to provide a fixed preload for each of the elastic damping elements.
3. The damping pedal as described in claim 1, characterized in that, The preload structure is configured to provide a variable preload for each of the elastic damping elements.
4. The damping pedal as described in claim 2, characterized in that, The pre-compression structure has the first configuration, and the pre-compression structure includes: At least two damping push rods; each damping push rod is connected to the end of each elastic damping element away from the foot pedal; the arrangement direction of the damping push rods is consistent with the arrangement direction of the elastic damping elements and they are connected in a one-to-one correspondence. A driving device; a driving output section is provided at one end of the driving device; after assembly, the pre-compression structure is configured such that: the driving device can drive the driving output section to move along the arrangement direction of the damping push rods, and can sequentially push up each of the damping push rods along the moving direction to provide pre-compression force to each of the elastic damping elements, so that the pre-compression structure can act on one of them individually, and can act on at least two of the elastic damping elements simultaneously.
5. The damping pedal as described in claim 4, characterized in that, The preload structure is configured such that the contact portion between the drive output end and the damping push rod is slidably engaged, so that: When the driving device drives the driving output end to move along the arrangement direction of the damping push rod, it can push up the damping push rod.
6. The damping pedal as described in claim 5, characterized in that, The contact portion between the drive output end and the damping push rod is configured as a wedge-shaped structure that cooperates with each other.
7. The damping pedal as described in claim 8, characterized in that, The acute angle of the mutually cooperating wedge structure is 30° to 45°.
8. The damping pedal as described in claim 7, characterized in that, The driving device includes: a drive motor, a gear set, and the output end of the motor connected in sequence; the drive motor drives the gear set, causing the output end of the motor to move sequentially toward the contact portion of each of the elastic damping push rods.
9. The damping pedal as described in claim 3, characterized in that, The pre-compression structure has the second configuration, and the pre-compression structure includes: at least two air springs, each connected to one of the elastic damping elements; used to provide pre-pressure to the elastic damping elements after inflation; At least two air tubes are connected to each of the aforementioned air springs; Air valve; connected to the air pipe, used to control the air intake of each of the elastic damping elements respectively; An air compressor; connected to each of the aforementioned air pipes via air valves; used to provide an air source; After assembly, the gas output from the air compressor enters each of the air springs through the air valves and air pipes, inflating each air spring so that the pre-compression structure can act individually or not simultaneously on any one of them, and can act simultaneously on at least two of the elastic damping elements.
10. The damping pedal as described in claim 9, characterized in that, Also includes: The pre-compression structure is configured such that the air intake of the air spring can be changed via the air valve to provide a variable pre-compression for each of the elastic damping elements.