Brake-by-wire pedal device

Abstract

The invention discloses a brake-by-wire pedal device. The brake-by-wire pedal device comprises a shell, a supporting table and a sensing assembly. The shell is of a cavity structure, a mounting groove is formed in the side wall of the shell, and the sensing assembly is arranged in the mounting groove; the supporting table is slidably arranged in the shell, one end of the supporting table abuts against the shell through an elastic assembly, and the other end of the supporting table extends out of the shell and is connected with the pedal. An auxiliary assembly is arranged between the peripheral side of the supporting table and the inner wall of the shell. A sliding block is slidably arranged on the supporting table, a first inclined wedge face is arranged at the end, close to the elastic assembly, of the sliding block, and the other end face of the sliding block slidably abuts against the inner wall of the shell. One end of the elastic component is fixed on the shell, and the other end of the elastic component is provided with a second inclined wedge surface matched with the first inclined wedge surface; a magnet assembly is arranged between the supporting table and the induction assembly. The supporting table is suitable for driving the magnet assembly to rotate through the connecting rod. Through cooperation of the shell, the supporting table, the sliding block and the elastic assembly, a driver can keep stepping on the pedal for a long time with small force, and labor saving and convenience are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of brake pedals, and in particular to a wire-controlled brake pedal device. Background Art

[0002] As the automotive industry continues to evolve toward automation and electrification, the importance of brake-by-wire systems is growing. Due to their fast response time, high control accuracy, and flexible layout, brake-by-wire systems are gradually replacing traditional braking systems. The brake-by-wire pedal is a crucial component of brake-by-wire systems. However, existing technologies have failed to provide drivers with a braking feel similar to that of conventional vehicles.

[0003] When descending a long slope, the driver needs to keep the brake-by-wire pedal pressed for a long time. Because existing brake-by-wire pedals have a return spring, the driver must keep pressing the pedal firmly during this process to prevent it from rebounding. This constant pressure creates a sense of exertion, which affects the driver's driving experience and can lead to fatigue. Furthermore, existing brake-by-wire pedals carry the risk of unexpected jamming, which can pose a safety hazard to the vehicle as a whole. Summary of the Invention

[0004] The present invention provides a brake-by-wire pedal device, which is used to solve the technical problem that a driver feels very strenuous when stepping on the brake-by-wire pedal for a long time, and the safety performance is low.

[0005] The invention discloses a wire-controlled brake pedal device, comprising a housing, a support platform, a sensing component and a pedal; The shell is a hollow structure, and a mounting groove communicating with the inner cavity of the shell is formed on its side wall, and the sensing component is disposed in the mounting groove; the support platform is slidably disposed in the shell along its axial direction, with a first end thereof abutting against the shell via a coaxially arranged elastic component, and a second end thereof extending outside the shell and connected to the pedal; an auxiliary component for providing foot feel is disposed between the outer peripheral side of the support platform and the inner wall of the shell; A radial slot is provided on the side wall of the first end of the support platform, a slider is slidably provided in the radial slot, the slider is adapted to slide along the radial direction of the support platform, a first oblique wedge surface is provided on one end of the slider close to the elastic component, the first oblique wedge surface faces the axial direction of the support platform, and the other end surface of the slider slides against the inner wall of the housing; One end of the elastic component is fixed to the housing, and the other end is provided with a second oblique wedge surface that cooperates with the first oblique wedge surface; A magnet assembly that cooperates with the induction assembly is provided between the support platform and the induction assembly, and the magnet assembly is rotatably installed in the housing; the support platform is adapted to drive the magnet assembly to rotate through a connecting rod. When the driver needs to step on the pedal for a long time, through the cooperation between the housing, the support platform, the slider and the elastic assembly, the friction between the slider and the inner wall of the housing is increased, so that the driver can use less force to maintain the current long step on the pedal, which is labor-saving and convenient.

[0006] Further, a lower cavity is formed in the end face of the first end of the support platform, and the lower cavity is disposed in the housing; the radial chute is communicated with the lower cavity, and the first inclined wedge surface of the slider is disposed in the lower cavity; The elastic assembly includes a movable block and a first spring; The movable block is slidably disposed in the lower cavity, and the first spring is connected between the movable block and the housing; the sliding direction of the movable block and the telescopic direction of the first spring are both parallel to the axial direction of the support platform; The second inclined wedge surface is disposed on a side of the movable block away from the first spring; the included angle between the second inclined wedge surface and the axis of the support platform is 30° to 60°. With the above scheme, through the mutual cooperation of the first inclined wedge surface and the second inclined wedge surface, the driver can use less force to maintain the current long step on the pedal.

[0007] Further, an upper cavity is formed in the end face of the second end of the support platform; a radial clamping hole is formed in the side wall of the second end of the support platform, and the radial clamping hole is communicated with the upper cavity; The pedal is inserted into the upper cavity through a connecting shaft, and the connecting shaft is clamped with the radial clamping hole through an elastic clamping joint. With the above scheme, the pedal is connected to the support platform.

[0008] Further, a guiding chute is formed in the outer side wall of the first end of the support platform, and the guiding chute is disposed opposite to the installation groove; The magnet assembly includes a turntable, a connecting rod and a magnet; The turntable is rotatably disposed in the installation groove, a connecting rod is disposed on a side of the turntable close to the support platform, and a magnet is disposed on the other side of the turntable; One end of the connecting rod is fixedly connected to the central axis of the turntable, and the other end of the connecting rod is rotatably slidably connected to the guiding chute through a connecting protrusion; the axial direction of the connecting protrusion is parallel to the axial direction of the turntable; The support platform is adapted to drive the turntable and the magnet to rotate via the connecting rod. With the above solution, the support platform drives the turntable to rotate via the connecting rod, so that the magnet assembly cooperates with the induction assembly, effectively preventing the components of the brake-by-wire pedal device from getting stuck and improving the stability and safety of the device.

[0009] Furthermore, the turntable is arranged in the mounting groove via a mounting plate; The turntable is passed through the mounting plate, and a limiting convex ring is provided on the edge of the turntable close to the support platform, and a limiting protrusion is provided on the edge of the other side of the turntable; The mounting plate is placed between the limiting convex ring and the limiting protrusion, and is rotatably connected to the turntable; an avoidance hole for the limiting protrusion to pass through is opened on the mounting plate; The limiting protrusion is adapted to be staggered with the avoidance hole when the connecting protrusion is matched with the guide slot. The above solution is adopted to prevent the turntable from being separated from the mounting plate.

[0010] Furthermore, a radial slot is provided on the outer peripheral wall of the middle section of the support platform, and the radial slot is placed in the shell; an auxiliary slot is provided on the second end side wall of the shell cavity, and the angle between the length direction of the auxiliary slot and the axial direction of the support platform is 135° to 165°; The auxiliary component includes an auxiliary spring and a bullet head; The connecting end of the bullet head is disposed within the auxiliary groove via the auxiliary spring. The connecting end of the bullet head is slidably disposed within the radial slot, and the tip of the bullet head extends outside the radial slot and abuts the auxiliary groove. With this solution, when the driver initially steps on the pedal, the cooperation between the housing, the auxiliary assembly, and the support platform provides the driver with a braking feel similar to that of a conventional vehicle.

[0011] Furthermore, the housing includes a base, an upper cover and a mounting plate; The base is a hollow structure with an open second end; the mounting groove is provided on the side wall of the base and is in communication with the inner cavity of the base; a limiting step is provided in the base; The upper cover is placed outside the base and is detachably arranged on the end surface of the second end of the base; The first end of the support platform is slidably disposed in the base, and an axial sliding groove is provided on the side wall of the first end of the support platform, and the axial sliding groove cooperates with the limiting step; the second end of the support platform is passed through the upper cover and connected to the pedal; The mounting plate is arranged in the mounting groove, and the magnet assembly is rotatably arranged on the mounting plate; The magnet assembly is installed on the base and is located on the side of the mounting plate away from the inner cavity of the base. The above solution is adopted to enable the magnet assembly to cooperate with the induction assembly.

[0012] Furthermore, the wire-controlled brake pedal device further includes a buffer block; There are multiple buffer blocks, and the multiple buffer blocks are respectively embedded in the support platform, located between the support platform and the upper cover, and between the support platform and the limit step. The above solution is adopted to protect the support platform and extend its service life.

[0013] Furthermore, the induction assembly includes a mounting cover plate, a circuit main board, and a signal shielding board; The circuit main board is arranged in the mounting groove and is located on the side of the magnet assembly away from the support platform; the circuit main board is adapted to cooperate with the magnet assembly; The mounting cover plate covers the outside of the mounting groove and is arranged outside the housing; The signal shielding board is arranged on the side of the mounting cover plate away from the circuit main board. The above solution is adopted to prevent external signals from interfering with the circuit main board.

[0014] Furthermore, there are at least two auxiliary components, and the auxiliary components are evenly distributed at equal angles; There are at least two sliders, and the sliders are evenly distributed at equal angles; The projection of the auxiliary component along the axial direction of the support platform and the projection of the slider along the axial direction of the support platform are staggered. The above solution is adopted to further improve the stability of the wire-controlled brake pedal device.

[0015] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art: When the driver needs to step on the pedal for a long time, through the cooperation between the housing, the support platform, the slider, and the elastic component, the friction force between the slider and the inner wall of the housing is increased, so that the driver can maintain the current long-step on the pedal with less force, which is labor-saving and convenient; The support platform slidably arranged in the housing drives the magnet assembly to rotate through the connecting rod, so that the magnet assembly cooperates with the induction assembly, effectively preventing the parts of the wire-controlled brake pedal device from getting stuck, and improving the smoothness and safety performance of the device; When the driver initially steps on the pedal, through the cooperation of the housing, the auxiliary component, and the support platform, a braking foot feeling similar to that of a traditional vehicle is provided to the driver; By setting the double-spring structure, the safety performance of the wire-controlled brake pedal device is improved.

[0016] The above description of the present disclosure and the following description of the embodiments are used to illustrate and explain the spirit and principle of the present invention, and provide a further explanation of the scope of the patent application of the present invention. Brief Description of the Drawings

[0017] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Figure 1 It is an exploded view of the line control brake pedal device of the present invention; Figure 2 It is a schematic view of the line control brake pedal device of the present invention; Figure 3 It is a schematic view of the base of the present invention; Figure 4 It is a partial schematic view of the line control brake pedal device of the present invention; Figure 5 It is an exploded view of a part of the line control brake pedal device of the present invention; Figure 6 It is a partial sectional view (one) of the line control brake pedal device of the present invention; Figure 7 It is a partial sectional view (two) of the line control brake pedal device of the present invention; Figure 8 It is a schematic view of the slider and the movable block of the present invention; Figure 9 It is a schematic view of the pedal of the present invention; Figure 10 It is a schematic view of the induction component and the magnet component arranged on the base of the present invention; Figure 11 It is a schematic view (one) of the magnet component arranged on the mounting plate of the present invention; Figure 12 It is a schematic view (two) of the magnet component arranged on the mounting plate of the present invention.

[0019] Explanation of the reference numerals in the drawings: 1. Housing; 11. Base; 111. Installation groove; 112. Auxiliary groove; 113. Limit step; 12. Upper cover; 13. Mounting plate; 131. Avoidance hole; 132. Exposure hole; 2. Support platform; 21. Radial chute; 22. Guide chute; 23. Anti-fooling surface; 24. Radial clamping hole; 25. Radial slot; 26. Axial chute; 3. Induction component; 31. Installation cover plate; 32. Circuit main board; 33. Signal shielding board; 4. Pedal; 41. Connecting shaft; 411. Elastic clamping joint; 5. Elastic component; 51. Movable block; 511. Second inclined wedge surface; 52. First spring; 53. Second spring; 6. Slide block; 61. First inclined wedge surface; 7. Magnet assembly; 71. Turntable; 711. Limit projection; 712. Limit convex ring; 72. Connecting rod; 721. Connecting projection; 73. Magnet; 74. Metal sheet; 8. Auxiliary component; 81. Auxiliary spring; 82. Bullet head; 9. Buffer block. Detailed implementation manners

[0020] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiments, this does not mean that the features of this invention are limited to this implementation manner. On the contrary, the purpose of introducing the invention in conjunction with the implementation manner is to cover other alternatives or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, many specific details will be included in the following description. The present invention can also be implemented without using these details. In addition, in order to avoid confusing or obscuring the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0021] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 to the present invention.

[0022] The terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0023] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, the terms "provided with", "set", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0024] The present application discloses a wire-controlled brake pedal device. The wire-controlled brake pedal device is suitable for being assembled on a whole vehicle and is used for feeding back a brake signal to the whole vehicle.

[0025] Please refer to Figure 1 As shown, the wire-controlled brake pedal device includes a housing 1, a support platform 2, an induction component 3, a pedal 4, an elastic component 5, a slider 6, a magnet component 7, and an auxiliary component 8.

[0026] Specifically, please refer to Figures 1 to 8 As shown, the housing 1 is a cavity structure, and an installation groove 111 is formed in its side wall. The installation groove 111 communicates with the inner cavity of the housing 1. The induction component 3 is arranged in the installation groove 111. The support platform 2 is slidably arranged in the housing 1 along its axial direction. The first end of the support platform 2 is placed inside the housing 1. The first end of the support platform 2 abuts against the housing 1 through the elastic component 5, and the elastic component 5 is coaxially arranged with the support platform 2. The second end of the support platform 2 extends outside the housing 1 and is connected to the pedal 4. An auxiliary component 8 is arranged between the outer peripheral side of the support platform 2 and the inner wall of the housing 1, and the auxiliary component 8 is used to provide a foot feeling.

[0027] A radial sliding groove 21 is formed in the side wall of the first end of the support platform 2, and the radial sliding groove 21 is arranged along the radial direction of the support platform 2. A slider 6 is slidably arranged in the radial sliding groove 21. The slider 6 is suitable for sliding along the radial direction of the support platform 2. A first inclined wedge surface 61 is arranged at one end of the slider 6 close to the elastic component 5. The first inclined wedge surface 61 faces the axial direction of the support platform 2. The other end face of the slider 6 is slidably abutted against the inner wall of the housing 1. One end of the elastic component 5 is fixed on the housing 1, and a second inclined wedge surface 511 is arranged at the other end of the elastic component 5. The second inclined wedge surface 511 cooperates with the first inclined wedge surface 61 (as Figure 8 shown), that is, the second inclined wedge surface 511 abuts against the first inclined wedge surface 61.

[0028] A magnet component 7 is arranged between the support platform 2 and the induction component 3, and the magnet component 7 is suitable for cooperating with the induction component 3. The magnet component 7 is rotatably installed in the housing 1. The support platform 2 is suitable for driving the magnet component 7 to rotate through a connecting rod 72, that is, when the support platform 2 slides in the housing 1, the support platform 2 can drive the magnet component 7 to rotate.

[0029] In this embodiment, the support platform 2 is vertically arranged in the housing 1, and the support platform 2 can slide up and down. The first end of the support platform 2 is the lower end of the support platform 2, and the second end of the support platform 2 is the upper end of the support platform 2. The axial direction of the support platform 2 is the vertical direction. The pedal 4 is placed above the support platform 2. The elastic component 5 is placed below the support platform 2, and the lower end of the elastic component 5 is connected to the bottom of the inner cavity of the housing 1. The telescopic direction of the elastic component 5 is the vertical direction.

[0030] Among them, when the driver initially steps on the pedal 4, the support platform 2 cooperates with the inner wall of the housing 1 through the auxiliary component 8, thereby providing a foot feeling to the driver. During the downward movement of the pedal 4, the elastic component 5 undergoes elastic deformation. During this period, the elastic component 5 applies a force to the first inclined wedge surface 61 through the second inclined wedge surface 511 to increase the pressure between the slider 6 and the housing 1, thereby increasing the frictional force between the slider 6 and the housing 1. At this time, the driver can use a smaller force to maintain the current long press on the pedal 4, which is labor-saving and convenient. When the pedal 4 descends, the support platform 2 drives the magnet assembly 7 to rotate through the connecting rod 72, so that the magnet assembly 7 cooperates with the induction assembly 3, and then the induction assembly 3 feeds back a braking signal to the entire vehicle.

[0031] Please refer to Figures 1 to 3 As shown, the housing 1 includes a base 11, an upper cover 12, and a mounting plate 13. Among them, the base 11 is arranged vertically. The base 11 is a cavity structure with an open second end, that is, the upper end of the base 11 is open. The mounting groove 111 is opened on the side wall of the base 11 and communicates with the inner cavity of the base 11. A limiting step 113 is provided at the bottom of the inner cavity of the base 11 to limit the sliding range of the support platform 2. The upper cover 12 is placed outside the base 11. The upper cover 12 is detachably arranged on the end face of the first end of the base 11 (i.e., the upper end face of the base 11). Please refer to Figure 10 As shown, the mounting plate 13 is arranged vertically in the mounting groove 111. The magnet assembly 7 is rotatably arranged on the mounting plate 13. The magnet assembly 7 is mounted on the base 11, and the magnet assembly 7 is placed on the side of the mounting plate 13 away from the inner cavity of the base 11.

[0032] In this embodiment, the wire-controlled brake pedal device is assembled on the entire vehicle through the base 11.

[0033] Please refer to Figure 3 and Figure 4 As shown, the first end of the support platform 2 (i.e., the lower end of the support platform 2) is slidably arranged in the base 11. Specifically, an axial sliding groove 26 is opened on the side wall of the lower end of the support platform 2, and the axial sliding groove 26 is arranged along the vertical direction. The axial sliding groove 26 cooperates with the limiting step 113. A lower cavity is opened on the lower end face of the support platform 2. The lower cavity is placed in the base 11. A radial sliding groove 21 is horizontally arranged in the middle and lower part of the support platform 2, and the radial sliding groove 21 communicates with the lower cavity. The first inclined wedge surface 61 of the slider 6 is placed in the lower cavity, and the elastic component 5 is placed below the first inclined wedge surface 61. The upper end of the elastic component 5 is placed in the lower cavity, and the lower end of the elastic component 5 is fixed to the bottom of the inner cavity of the base 11.

[0034] In this embodiment, please refer to Figures 6 to 8As shown in the figure, the elastic component 5 includes a movable block 51 and a first spring 52. Among them, the movable block 51 is slidably arranged in the lower cavity, and the movable block 51 is located below the slider 6. A first spring 52 is connected between the movable block 51 and the base 11. The upper end of the first spring 52 is fixedly connected to the movable block 51, and the lower end of the first spring 52 is fixedly connected to the base 11. The sliding direction of the movable block 51 and the telescopic direction of the first spring 52 are both parallel to the axis of the support platform 2. A second inclined wedge surface 511 is arranged on the side of the movable block 51 away from the first spring 52. The included angle between the second inclined wedge surface 511 and the axis of the support platform 2 is 30° to 60°. Preferably, the included angle between the second inclined wedge surface 511 and the axis of the support platform 2 is 45°.

[0035] Furthermore, the elastic component 5 further includes a second spring 53. Among them, the second spring 53 is arranged inside the first spring 52. The upper end of the second spring 53 is fixedly connected to the movable block 51, and the lower end of the second spring 53 is fixedly connected to the base 11. The double-spring structure can ensure that when one spring fails, the elastic component 5 can work normally, thereby improving the safety performance of the wire-controlled brake pedal device.

[0036] Please refer to Figure 4 and Figure 8 As shown in the figure, the second end of the support platform 2 (i.e., the upper end of the support platform 2) passes through the upper cover 12 and is connected to the pedal 4. Specifically, an upper cavity is provided on the upper end surface of the support platform 2, and the upper and lower cavities are not connected. A radial clamping hole 24 is provided on the side wall of the upper end of the support platform 2. The radial clamping hole 24 extends along the radial direction of the support platform 2, and the radial clamping hole 24 is connected to the upper cavity. The lower end of the pedal 4 is inserted into the upper cavity through a connecting shaft 41. An elastic clamping joint 411 is provided at the lower end edge of the connecting shaft 41, and the elastic clamping joint 411 is engaged with the radial clamping hole 24 to effectively arrange the pedal 4 on the support platform 2.

[0037] Furthermore, an anti-fooling surface 23 is provided on the side wall of the upper cavity of the support platform 2. The anti-fooling surface 23 is arranged in the vertical direction. The anti-fooling surface 23 cooperates with the side wall of the connecting shaft 41. The anti-fooling surface 23 is used to limit the assembly direction during the assembly of the upper cavity and the pedal 4.

[0038] Please refer to Figures 4 to 6 As shown in the figure, a radial slot 25 is provided on the outer peripheral wall of the middle section of the support platform 2. The radial slot 25 is arranged in the horizontal direction, and the radial slot 25 is arranged inside the base 11. Specifically, the radial slot 25 is arranged between the upper and lower cavities, and the radial slot 25, the upper cavity and the lower cavity are not connected to each other. The auxiliary component 8 is arranged in the radial slot 25. An auxiliary slot 112 is provided on the side wall of the second end (i.e., the upper end of the inner cavity of the base 11) of the inner cavity of the base 11. The auxiliary slot 112 cooperates with the auxiliary component 8. The auxiliary slot 112 gradually approaches the axis of the support platform 2 from top to bottom.

[0039] In this embodiment, please refer to Figures 6 to 8 As shown, the auxiliary component 8 is placed above the slider 6. The auxiliary component 8 includes an auxiliary spring 81 and a bullet head 82. The connecting end of the bullet head 82 is arranged in the auxiliary groove 112 through the auxiliary spring 81. The connecting end of the bullet head 82 is slidably arranged in the radial slot 25. The tip of the bullet head 82 extends outside the radial slot 25 and abuts against the abutting surface of the auxiliary groove 112. The included angle between the length direction of the abutting surface of the auxiliary groove 112 and the axis of the support platform 2 is 135° - 165°. Preferably, the included angle between the length direction of the auxiliary groove 112 and the axis of the support platform 2 is 155°, that is, the included angle between the abutting surface of the auxiliary groove 112 and the horizontal plane is 25°. Through the cooperation of the bullet head 82 and the auxiliary groove 112, the foot feeling of stepping on the pedal 4 is provided.

[0040] Furthermore, there are at least two auxiliary components 8, and the auxiliary components 8 are evenly distributed at equal angles. There are at least two sliders 6, and the sliders 6 are evenly distributed at equal angles. In this embodiment, there are two auxiliary components 8 and four sliders 6, and the projections of the auxiliary components 8 along the axis of the support platform 2 and the projections of the sliders 6 along the axis of the support platform 2 are staggered. This structure can further improve the stability of the wire-controlled brake pedal device.

[0041] Please refer to Figure 4 As shown, a guiding chute 22 is formed on the outer side wall of the first end (i.e., the lower end) of the support platform 2. The guiding chute 22 is arranged in the horizontal direction and is not communicated with the lower cavity. Specifically, the guiding chute 22 is arranged opposite to the installation groove 111. The magnet assembly 7 is rotatably arranged in the installation groove 111 through the installation plate 13, and the magnet assembly 7 is matched with the guiding chute 22 through the connecting rod 72.

[0042] In this embodiment, please refer to Figure 4 、 Figures 11 to 12As shown, the magnet assembly 7 includes a turntable 71, a connecting rod 72 and a magnet 73. The turntable 71 is inserted into the mounting plate 13. A limiting protrusion 712 is provided on the edge of the turntable 71 close to the support platform 2. A limiting protrusion 711 is provided on the edge of the other side of the turntable 71. The mounting plate 13 is placed between the limiting protrusion 712 and the limiting protrusion 711 and is rotatably connected to the turntable 71. An avoidance hole 131 for the limiting protrusion 711 to pass through is provided on the mounting plate 13. The staff can align the limiting protrusion 711 with the avoidance hole 131, thereby allowing the limiting protrusion 711 to pass through the avoidance hole 131; thereafter, the turntable 71 is rotated to cause the limiting protrusion 711 to be offset from the avoidance hole 131, thereby preventing the turntable 71 from detaching from the mounting plate 13. A connecting rod 72 is provided on the side of the turntable 71 close to the support platform 2, and a magnet 73 is provided on the other side of the turntable 71. One end of the connecting rod 72 is fixedly connected to the central axis of the turntable 71, and the other end of the connecting rod 72 is rotatably and slidably connected to the guide slot 22 via a connecting protrusion 721. The axial direction of the connecting protrusion 721 is parallel to the axial direction of the turntable 71, and both are arranged in the horizontal direction. When the support platform 2 slides up and down, the guide slot 22 drives the connecting protrusion 721 to move within the guide slot 22, thereby causing the connecting rod 72 to rotate the turntable 71 and the magnet 73; during this process, the limit protrusion 711 is staggered with the avoidance hole 131.

[0043] Furthermore, an exposure hole 132 is provided on the mounting plate 13 for exposing the connection between the connecting protrusion 721 and the guide slot 22 so that the staff can maintain the connection between the connecting protrusion 721 and the guide slot 22 later.

[0044] Furthermore, to improve safety performance, the magnet assembly 7 also includes a metal sheet 74. Specifically, there are two turntables 71 and two connecting rods 72. There are two guide slots 22. The turntables 71 are connected to the guide slots 22 through corresponding connecting rods 72. One of the turntables 71 is provided with a magnet 73, and the other turntable 71 is provided with a metal sheet 74. The magnet 73 and the metal sheet 74 respectively cooperate with the induction assembly 3. When the magnet 73 fails, the metal sheet 74 can ensure that the magnet assembly 7 and the induction assembly 3 cooperate normally, thereby improving the safety performance of the wire-controlled brake pedal device.

[0045] See also Figure 1 and Figure 10 As shown, the sensing component 3 includes a mounting cover 31, a circuit board 32 and a signal shielding plate 33. The circuit board 32 is arranged in the mounting groove 111 and is located on the side of the magnet 73 away from the support platform 2. The circuit board 32 is suitable for cooperating with the magnet 73 and the metal sheet 74 respectively. The mounting cover 31 is arranged outside the mounting groove 111. The mounting cover 31 is arranged outside the base 11 to protect the circuit board 32. The signal shielding plate 33 is arranged on the side of the mounting cover 31 away from the circuit board 32 to prevent external signals from interfering with the circuit board 32.

[0046] In this embodiment, the circuit main board 32 is a PCB board. A Hall chip for sensing the change in magnetic flux of the magnet 73 is provided on the PCB board. Among them, the cooperation between the PCB board and the magnet 73 is a prior art, so it will not be elaborated. In addition, an inductance circuit board cooperating with the metal sheet 74 is provided on the PCB board. A Chinese patent document with the publication number CN102128701B discloses a differential pressure gauge based on eddy current displacement measurement technology. This document records how the inductance circuit board cooperates with the metal sheet 74. That is, the change in the position of the metal sheet 74 causes the area of the metal sheet 74 covering the inductance circuit board to change, thereby changing the inductance of the inductance circuit board. Therefore, the circuit main board 32 can detect the change in inductance. The circuit main board 32 feeds back corresponding braking signals to the whole vehicle according to the detection result of the inductance. Therefore, the cooperation between the inductance circuit and the metal sheet 74 is a prior art, so it will not be elaborated.

[0047] Furthermore, a socket for connecting the circuit main board 32 to an external cable is provided on the mounting cover plate 31.

[0048] Please refer to Figures 4 to 6 As shown, in order to effectively protect the support platform 2, the wire-controlled brake pedal device further includes a buffer block 9. There are multiple buffer blocks 9, and the multiple buffer blocks 9 are respectively embedded in the support platform 2, located between the support platform 2 and the upper cover 12, and between the support platform 2 and the limit step 113. In this embodiment, there are four buffer blocks 9, two of which are placed between the support platform 2 and the upper cover 12, and the other two are placed between the support platform 2 and the limit step 113. When the support platform 2 slides up and down, the buffer block 9 can provide elastic buffering to protect the support platform 2 and extend the service life of the support platform 2.

[0049] The working principle of the present invention is as follows: When the driver initially steps on the pedal 4, the support platform 2 cooperates with the auxiliary groove 112 through the bullet head 82, and then provides a foot feeling to the driver.

[0050] During the downward movement of the pedal 4, the first spring 52 undergoes elastic deformation. During this period, the first spring 52 applies a force to the first inclined surface 61 through the second inclined surface 511 to increase the pressure between the slider 6 and the inner wall of the base 11, and further increase the friction between the slider 6 and the base 11. At this time, the driver can achieve a long press on the pedal 4 with a smaller force, which is labor-saving and convenient.

[0051] When the pedal 4 descends, the support platform 2 drives the magnet 73 to rotate through the cooperation between the connecting rod 72 and the guiding chute 22, so that the magnet 73 cooperates with the circuit main board 32, and further enables the circuit main board 32 to feedback a braking signal to the whole vehicle. During this process, the connecting rod 72 cooperates with the guiding chute 22, effectively preventing the parts of the wire-controlled braking pedal device from getting stuck, and improving the stability and safety performance of the device.

[0052] When the driver needs to step on the pedal for a long time, the present invention increases the friction between the slider and the inner wall of the housing through the cooperation among the housing, the support platform, the slider and the elastic component, so that the driver can keep stepping on the pedal currently with less force, which is labor-saving and convenient. The support platform slidably arranged in the housing drives the magnet assembly to rotate through the connecting rod, so that the magnet assembly cooperates with the induction component, effectively preventing the parts of the wire-controlled braking pedal device from getting stuck, and improving the stability and safety performance of the device. When the driver initially steps on the pedal, through the cooperation of the housing, the auxiliary component and the support platform, a braking foot feeling close to that of a traditional vehicle is provided to the driver. By setting the double-spring structure, the safety performance of the wire-controlled braking pedal device is improved.

[0053] The above embodiments merely illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A wire-controlled brake pedal device, characterized in that, It includes a housing (1), a support platform (2), an induction component (3), and a pedal (4); The housing (1) has a cavity structure, and an installation groove (111) communicating with the inner cavity of the housing (1) is provided on its side wall. The induction component (3) is arranged in the installation groove (111); the support platform (2) is slidably arranged in the housing (1) along its axis. Its first end abuts against the housing (1) through an axially co - arranged elastic component (5), and its second end extends outside the housing (1) and is connected to the pedal (4); an auxiliary component (8) for providing a foot feeling is arranged between the outer peripheral side of the support platform (2) and the inner wall of the housing (1); A radial sliding groove (21) is provided on the side wall of the first end of the support platform (2). A slider (6) is slidably arranged in the radial sliding groove (21). The slider (6) is adapted to slide along the radial direction of the support platform (2). One end of the slider (6) close to the elastic component (5) is provided with a first inclined wedge surface (61). The first inclined wedge surface (61) faces the axis of the support platform (2), and the other end face of the slider (6) is in sliding contact with the inner wall of the housing (1); One end of the elastic component (5) is fixed on the housing (1), and the other end is provided with a second inclined wedge surface (511) cooperating with the first inclined wedge surface (61); A magnet component (7) cooperating with the induction component (3) is arranged between the support platform (2) and the induction component (3). The magnet component (7) is rotatably installed in the housing (1); the support platform (2) is adapted to drive the magnet component (7) to rotate through a connecting rod (72).

2. The wire-controlled brake pedal device according to claim 1, characterized in that, A lower cavity is provided on the end face of the first end of the support platform (2). The lower cavity is located in the housing (1); the radial sliding groove (21) is communicated with the lower cavity, and the first inclined wedge surface (61) of the slider (6) is located in the lower cavity; The elastic component (5) includes a movable block (51) and a first spring (52); The movable block (51) is slidably arranged in the lower cavity. The movable block (51) and the housing (1) are connected by the first spring (52); the sliding direction of the movable block (51) and the telescopic direction of the first spring (52) are both parallel to the axis of the support platform (2); The second inclined wedge surface (511) is arranged on the side of the movable block (51) away from the first spring (52); the included angle between the second inclined wedge surface (511) and the axis of the support platform (2) is 30° - 60°.

3. The wire-controlled brake pedal device according to claim 1, wherein An upper cavity is provided on the end face of the second end of the support platform (2); a radial clamping hole (24) is provided on the side wall of the second end of the support platform (2). The radial clamping hole (24) is communicated with the upper cavity; The pedal (4) is inserted into the upper cavity through a connecting shaft (41). The connecting shaft (41) is clamped with the radial clamping hole (24) through an elastic clamping joint (411).

4. The wire-controlled brake pedal device according to claim 1, characterized in that, A guide slot (22) is provided on the outer side wall of the first end of the support platform (2), and the guide slot (22) is arranged opposite to the mounting slot (111); The magnet assembly (7) comprises a rotating disk (71), a connecting rod (72) and a magnet (73); The turntable (71) is rotatably arranged in the mounting groove (111); the connecting rod (72) is provided on one side of the turntable (71) close to the support platform (2); and the magnet (73) is provided on the other side of the turntable (71); One end of the connecting rod (72) is fixedly connected to the central axis of the rotating disk (71), and the other end of the connecting rod (72) is rotatably and slidably connected to the guide slot (22) via a connecting protrusion (721); the axial direction of the connecting protrusion (721) is parallel to the axial direction of the rotating disk (71); The support platform (2) is suitable for driving the turntable (71) and the magnet (73) to rotate via the connecting rod (72).

5. The wire-controlled brake pedal device according to claim 4, characterized in that, The turntable (71) is arranged in the mounting groove (111) via a mounting plate (13); The turntable (71) is passed through the mounting plate (13); a limiting protrusion (712) is provided on the edge of the turntable (71) on one side close to the support platform (2); and a limiting protrusion (711) is provided on the edge of the other side of the turntable (71); The mounting plate (13) is placed between the limiting protrusion (712) and the limiting protrusion (711), and is rotatably connected to the turntable (71); a relief hole (131) is provided on the mounting plate (13) for the limiting protrusion (711) to pass through; The limiting protrusion (711) is adapted to be staggered with the avoidance hole (131) when the connecting protrusion (721) is matched with the guide slot (22).

6. The wire-controlled brake pedal device according to claim 1, wherein, A radial slot (25) is provided on the outer peripheral wall of the middle section of the support platform (2), and the radial slot (25) is placed in the shell (1); an auxiliary slot (112) is provided on the second end side wall of the inner cavity of the shell (1), and the angle between the length direction of the auxiliary slot (112) and the axial direction of the support platform (2) is 135° to 165°; The auxiliary component (8) includes an auxiliary spring (81) and a bullet head (82); The connecting end of the bullet head (82) is arranged in the auxiliary groove (112) through the auxiliary spring (81), and the connecting end of the bullet head (82) is slidably arranged in the radial slot (25). The tip of the bullet head (82) extends outside the radial slot (25) and abuts against the auxiliary groove (112).

7. The wire-controlled brake pedal device according to claim 1, characterized in that The housing (1) comprises a base (11), an upper cover (12) and a mounting plate (13); The base (11) is a hollow structure with an open second end; the mounting groove (111) is provided on a side wall of the base (11) and is in communication with the inner cavity of the base (11); a limiting step (113) is provided in the base (11); The upper cover (12) is placed outside the base (11) and is detachably arranged on the end surface of the second end of the base (11); The first end of the support platform (2) is slidably arranged in the base (11). An axial sliding groove (26) is formed in the side wall of the first end of the support platform (2), and the axial sliding groove (26) is matched with the limiting step (113); the second end of the support platform (2) passes through the upper cover (12) and is connected to the pedal (4). The mounting plate (13) is arranged in the mounting groove (111), and the magnet assembly (7) is rotatably arranged on the mounting plate (13). The magnet assembly (7) is mounted on the base (11) and is located on the side of the mounting plate (13) away from the inner cavity of the base (11).

8. The wire-controlled brake pedal device according to claim 7, wherein It further includes a buffer block (9). There are multiple buffer blocks (9), and the multiple buffer blocks (9) are respectively embedded in the support platform (2), located between the support platform (2) and the upper cover (12), and between the support platform (2) and the limiting step (113).

9. The wire-controlled brake pedal device according to claim 1, wherein The induction assembly (3) includes a mounting cover plate (31), a circuit main board (32) and a signal shielding board (33). The circuit main board (32) is arranged in the mounting groove (111) and is located on the side of the magnet assembly (7) away from the support platform (2); the circuit main board (32) is adapted to cooperate with the magnet assembly (7). The mounting cover plate (31) covers the outside of the mounting groove (111) and is arranged outside the housing (1). The signal shielding board (33) is arranged on the side of the mounting cover plate (31) away from the circuit main board (32).

10. The wire-controlled brake pedal device according to claim 1, characterized in that, There are at least two auxiliary components (8), and the auxiliary components (8) are evenly distributed at equal angles. There are at least two sliders (6), and the sliders (6) are evenly distributed at equal angles. The projection of the auxiliary component (8) along the axis of the support platform (2) and the projection of the slider (6) along the axis of the support platform (2) are staggered.

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