New energy brake pedal assembly, brake assembly, new energy vehicle

Abstract

The utility model relates to new energy automobile technical field especially new energy brake pedal assembly, brake component, new energy automobile, a kind of new energy brake pedal assembly, including support, still including rotatable installation on the bracket pedal axle assembly;Still including fixedly installed in the pedal axle assembly magnet steel, the number of magnet steel is two, two magnet steel symmetrical distribution in the axis both sides of pedal axle assembly;Still including installation on the bracket sensor housing and fixed in the circuit board of sensor housing, sensor housing is provided with barrel hollow convex shell, hollow convex shell is inserted into the gap between two magnet steels, and the outer surface of hollow convex shell and the outer surface of magnet steel do not contact each other, hollow convex shell is provided with Hall chip, and the circuit board is connected with Hall chip communication.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to new energy brake pedal assembly, brake component, and new energy vehicle. Background Technology

[0002] The brake pedal, commonly known as the "brake pedal" or "foot brake," is the middle pedal among the three pedals in a car's driver's compartment (from left to right: clutch pedal, brake pedal, accelerator pedal). Its main function is to slow down or stop the vehicle through the driver's foot operation. Using a Hall effect sensor to measure the brake pedal angle is a classic and practical application. The basic idea is to convert the change in magnetic field strength caused by the rotation of the brake pedal into a change in voltage signal using a Hall effect sensor and a circuit board, and then map the voltage signal to an angle value through calibration.

[0003] Existing technologies, such as CN205168472U, disclose a brake pedal. In these technologies, when measuring the brake pedal angle, the Hall sensor plate is fixed, while the magnet sleeved on the outside of the Hall sensor plate rotates relative to the Hall sensor plate, causing the Hall sensor to cut magnetic field lines in the magnetic field. In these technologies, the relative rotation between the surface of the Hall sensor plate and the surface of the magnet causes friction on the surface of the magnet. After prolonged use, this can lead to wear and even cracking of the magnet's surface, shortening the lifespan of the device.

[0004] Therefore, the existing technical problem is how to extend the service life of magnets. Utility Model Content

[0005] The purpose of this utility model is to provide a new energy brake pedal assembly to address the aforementioned deficiencies in the prior art.

[0006] A new energy brake pedal assembly, including a bracket,

[0007] It also includes a rotatable pedal shaft assembly mounted on a bracket;

[0008] It also includes two magnets that are fixedly installed on the pedal shaft assembly, with the two magnets symmetrically distributed on both sides of the axis of the pedal shaft assembly;

[0009] It also includes a sensor housing mounted on a bracket and a circuit board fixed inside the sensor housing. The sensor housing has a barrel-shaped hollow convex shell that extends into the gap between two magnets. The outer surface of the hollow convex shell does not contact the outer surface of the magnets. A Hall chip is installed inside the hollow convex shell, and the circuit board is communicatively connected to the Hall chip.

[0010] Furthermore, it also includes a yoke magnetic ring, the inner ring of which is wrapped around two magnets.

[0011] Furthermore, the pedal shaft assembly includes a shaft body and a plastic spindle frame, wherein the plastic spindle frame includes a first connecting part and a second connecting part coaxially connected.

[0012] The first connecting part is detachably connected to the shaft body by fasteners. The second connecting part is provided with a riveting part at one end opposite to the first connecting part. A part of the yoke magnetic ring is inseparably restricted on the riveting part.

[0013] A first gap and a second gap are formed between the inner surface of the yoke magnetic ring and the riveting part. The first gap and the second gap are symmetrically distributed on both sides of the axis of the shaft. One magnet is inserted into the first gap and the other magnet is inserted into the second gap.

[0014] Furthermore, the Hall chip comprises two small chips, which are symmetrically distributed on both sides of the axis of the shaft.

[0015] Furthermore, along the axial direction of the shaft, the distance between the Hall chip and the magnet is configured to a preset distance.

[0016] Furthermore, the end of the shaft used to mount the plastic mandrel frame is the head end, and the end opposite to the head end is the tail end;

[0017] The shaft is provided with a first connecting section and a second connecting section. Both the first connecting section and the second connecting section are located between the head end and the tail end, and the first connecting section is located between the second connecting section and the head end.

[0018] It also includes a first bearing and a second bearing. The bracket is provided with mounting holes. Along the circumferential direction of the shaft, the first connecting section is movably connected to the wall of the mounting hole through the first bearing, and the second connecting section is movably connected to the wall of the mounting hole through the second bearing.

[0019] Furthermore, the bracket is provided with a first limiting surface, and the shaft is provided with a second limiting surface. Both the first and second limiting surfaces extend radially along the shaft. A first gap is provided between the first and second limiting surfaces along the axial direction of the shaft. The bracket also includes a first plastic washer, which is disposed within the first gap, and both sides of the first plastic washer are in contact with the first and second limiting surfaces, respectively.

[0020] Furthermore, the bracket is provided with a third limiting surface and also includes a nut assembly connected to the tail end of the shaft. A fourth limiting surface is provided on one side of the nut assembly. Both the third and fourth limiting surfaces extend radially along the shaft. A second gap is provided between the third and fourth limiting surfaces along the axial direction of the shaft. It also includes a second plastic washer, which is disposed within the second gap, and both sides of the second plastic washer are in contact with the third and fourth limiting surfaces, respectively.

[0021] Furthermore, a brake assembly is proposed, which includes the aforementioned new energy brake pedal assembly.

[0022] Furthermore, a new energy vehicle is proposed, which includes the aforementioned new energy brake pedal assembly; or includes the aforementioned brake assembly.

[0023] Compared with existing technologies, the advantages of this utility model are:

[0024] I. In this utility model, two magnets are fixedly installed on the pedal shaft assembly and rotate with the pedal shaft assembly. That is, the two magnets rotate when the driver presses the brake pedal. The sensor housing is fixed on the bracket, meaning it remains stationary when the driver presses the brake pedal. Correspondingly, the Hall chip and circuit board housed inside the hollow convex shell of the sensor housing are also stationary. The hollow convex shell extends into the gap between the two magnets, and the outer surface of the hollow convex shell does not contact the outer surface of the magnets. That is, no friction occurs between the hollow convex shell and the magnets as the magnets rotate or remain stationary with the pedal shaft assembly. After the brake pedal is engaged, the magnet mounted and fixed on the pedal shaft assembly rotates. No sliding friction occurs between the pedal shaft assembly and the magnet. The Hall effect chip remains stationary within the hollow convex shell, thus cutting magnetic field lines. The Hall effect chip senses the magnetic field, changes its position, and outputs a voltage signal to the circuit board. The hollow convex shell does not contact the magnet, therefore no sliding friction occurs between them. In other words, in this invention, during the rotation of the magnet, other components around the magnet do not experience sliding friction with it, resulting in minimal or no wear on the surface of the magnet during use. Compared to magnets in existing technologies, the magnet of this invention has a longer service life. Therefore, this invention solves the technical problem of how to extend the service life of magnets in existing technologies.

[0025] Second, in this utility model, along the axial direction of the shaft, the shaft contacts the bracket through a first plastic washer and a second plastic washer respectively. This causes the first plastic washer and the second plastic washer to be worn during the rotation of the shaft relative to the bracket, thereby protecting the surface of the shaft and the bracket. At the same time, the setting of the first plastic washer and the second plastic washer also avoids axial movement caused by assembly tolerance and axial wear of the shaft in the early stage of assembly, thereby avoiding unstable output signal of the Hall chip.

[0026] Third, in this utility model, the Hall effect shaft is set as part of the pedal shaft assembly. This utility model can be regarded as combining the existing pedal shaft and Hall effect shaft into the pedal shaft assembly of this utility model. The shaft of the pedal shaft assembly is connected to the hole wall of the bracket mounting hole along the circumferential direction through the first bearing and the second bearing. That is, the outer circumferential surface of the shaft is relatively fixed to the inner ring of the first bearing and the inner ring of the second bearing, respectively. Therefore, there is no direct sliding contact friction between the outer circumferential surface of the shaft and the hole wall of the mounting hole. There is only slight wear between the outer circumferential surface of the shaft and the inner ring of the first bearing and the inner ring of the second bearing. This results in the radial relative position between the magnet and the Hall chip set on the pedal shaft assembly hardly changing, thereby avoiding the relative position between the magnet and the circuit board changing along the radial direction of the shaft. Moreover, the shaft also ensures a small clearance fit with the hole wall of the mounting hole through the first bearing and the second bearing, reducing the radial wobble of the shaft and thus avoiding unstable output signal of the Hall chip. Attached Figure Description

[0027] Figure 1 This is a cross-sectional schematic diagram of the new energy brake pedal assembly in Example 1;

[0028] Figure 2 This is a schematic diagram of the pedal shaft assembly structure in Embodiment 1;

[0029] Figure 3 This is a schematic diagram of the sensor housing, circuit board, and Hall chip in Example 1;

[0030] Figure 4 This is a schematic diagram showing the connection between the pedal shaft assembly and the hollow convex shell;

[0031] Figure 5 This is a schematic diagram of the plastic mandrel skeleton of Example 1;

[0032] Figure 6 This is a schematic diagram of the riveting points before riveting;

[0033] Figure 7 This is a schematic diagram of the riveting points after riveting.

[0034] Figure 8 yes Figure 1 Schematic diagram of the structure of region A in the middle;

[0035] Figure 9 This is an example of the output signals from two small chips.

[0036] The markings in the figure are: bracket (1), pedal shaft assembly (2), magnet (3), sensor housing (4), circuit board (5), hollow convex shell (6), Hall chip (7), yoke magnetic ring (8), shaft body (9), plastic core shaft skeleton (10), first connecting part (11), second connecting part (12), riveting part (13), first gap (14), second gap (15), first connecting section (16), second connecting section (17), first bearing (18), second bearing (19), mounting hole (20), first limiting surface (21), second limiting surface (22), first plastic washer (23), nut assembly (24), second plastic washer (25). Detailed Implementation

[0037] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length h," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0038] Example 1

[0039] like Figures 1-4 As shown, this embodiment proposes a new energy brake pedal assembly, including a bracket 1, which further includes a pedal shaft assembly 2 rotatably mounted on the bracket 1; it also includes two magnets 3 fixedly mounted on the pedal shaft assembly 2, the two magnets 3 being symmetrically distributed on both sides of the axis of the pedal shaft assembly 2; it also includes a sensor housing 4 mounted on the bracket 1, and a circuit board 5 fixed inside the sensor housing 4. The sensor housing 4 is provided with a barrel-shaped hollow convex shell 6, the hollow convex shell 6 extending into the gap between the two magnets 3, and the outer surface of the hollow convex shell 6 not contacting the outer surface of the magnets 3. A Hall chip 7 is provided inside the hollow convex shell 6, and the circuit board 5 is communicatively connected to the Hall chip 7.

[0040] The shape of bracket 1 is prior art and will not be described in detail here; pedal shaft assembly 2 is used to rotate by pedal arm after the driver presses the brake pedal. The connection and transmission relationship between pedal shaft assembly, pedal arm, and brake pedal are all prior art. For details, please refer to the content disclosed in prior art CN119189943A, and will not be described in detail here; the specific structure of pedal shaft assembly 2 is detailed below.

[0041] The magnet 3 is a magnetic metal material. In this embodiment, the magnet 3 is configured as a long strip. The sensor housing 4 can be reasonably configured according to the shape of the bracket 1, and there is no limitation here. The circuit board 5 is an integrated component, which can be connected to the Hall chip 7 through wires. The Hall chip 7 is used to receive the signal of magnetic field change and transmit voltage to the circuit board 5. The sensor housing 4, the circuit board 5, and the Hall chip 7 are combined into an integral structure and set on one side of the pedal shaft assembly 2. The hollow convex shell 6 is configured as a barrel shape. The hollow convex shell 6 extends into the gap between the two magnets 3, and the outer surface of the hollow convex shell 6 does not contact the outer surface of the magnet 3. During the process of the magnet 3 rotating or not rotating with the pedal shaft assembly 2, it is ensured that no friction is generated between the hollow convex shell 6 and the magnet 3.

[0042] As can be seen from the background technology, the existing technical problem is how to extend the service life of magnets.

[0043] In this embodiment, two magnets 3 are fixedly mounted on the pedal shaft assembly 2 and rotate with the pedal shaft assembly 2. That is, the two magnets 3 rotate when the driver presses the brake pedal. The sensor housing 4 is fixed on the bracket 1, meaning that the sensor housing 4 remains stationary when the driver presses the brake pedal. Correspondingly, the Hall chip 7 and circuit board 5 disposed inside the hollow convex shell 6 of the sensor housing 4 are also stationary. The hollow convex shell 6 extends into the gap between the two magnets 3, and the outer surface of the hollow convex shell 6 does not contact the outer surface of the magnets 3. That is, no friction occurs between the hollow convex shell 6 and the magnets 3 during the rotation or stillness of the magnets 3 following the pedal shaft assembly 2. When the brake pedal is depressed, the magnet 3, mounted and fixed on the pedal shaft assembly 2, rotates. No sliding friction occurs between the pedal shaft assembly 2 and the magnet 3. The Hall chip 7 remains stationary within the hollow convex shell 6, thereby cutting magnetic field lines. The Hall chip 7 senses the magnetic field, changes its position, and outputs a voltage signal to the circuit board 5. The hollow convex shell 6 does not contact the magnet 3, thus preventing sliding friction between them. In this embodiment, during the rotation of the magnet 3, no other components around the magnet 3 experience sliding friction, resulting in minimal or no wear on the surface of the magnet 3 during use. Compared to magnets in the prior art, the magnet in this embodiment has a longer service life. Therefore, this embodiment solves the technical problem of extending the service life of magnets in the prior art.

[0044] Furthermore, along the axial direction of the shaft 9, the distance between the Hall chip 7 and the magnet 3 is configured as a preset distance. This preset distance is configured according to specific usage conditions and is not limited here.

[0045] Furthermore, the new energy brake pedal assembly of this embodiment also includes a yoke magnetic ring 8, the inner ring of which is sleeved around two magnets 3. The yoke magnetic ring 8 is used to absorb, reflect, and suppress external electromagnetic interference from the magnets 3.

[0046] like Figure 2 , Figures 5-7 As shown, further, as mentioned above, the magnet 3 is fixedly installed on the pedal shaft assembly 2. Specifically, the pedal shaft assembly 2 includes a shaft body 9 and a plastic core shaft frame 10. The plastic core shaft frame 10 includes a first connecting part 11 and a second connecting part 12 coaxially connected. The first connecting part 11 is detachably connected to the shaft body 9 by fasteners, which are screws or bolts. A crimping part 13 is provided at the end of the second connecting part 12 away from the first connecting part 11. A portion of the yoke magnetic ring 8 is inseparably restricted on the crimping part 13. A first gap 14 and a second gap 15 are formed between the inner ring surface of the yoke magnetic ring 8 and the crimping part 13. The first gap 14 and the second gap 15 are symmetrically distributed on both sides of the axis of the shaft body 9. One magnet 3 is inserted into the first gap 14, and the other magnet 3 is inserted into the second gap 15.

[0047] The riveting part 13 is also a part of the plastic mandrel skeleton 10. The end of the riveting part 13 away from the second connecting part 12 has four riveting points. After the riveting process, the four riveting points extend along the radial deformation of the shaft 9, thereby restricting the yoke magnetic ring 8 to the riveting part 13 in an irremovable manner.

[0048] like Figure 1 , Figure 2 Furthermore, this embodiment also includes the following technical solutions: In the new energy brake pedal assembly of this embodiment, the end of the shaft 9 used to install the plastic spindle frame 10 is the head end, and the end opposite to the head end is the tail end; the shaft 9 is provided with a first connecting section 16 and a second connecting section 17, both the first connecting section 16 and the second connecting section 17 are located between the head end and the tail end, and the first connecting section 16 is located between the second connecting section 17 and the head end; it also includes a first bearing 18 and a second bearing 19, and a mounting hole 20 is provided on the bracket 1. Along the circumferential direction of the shaft 9, the first connecting section 16 is movably connected to the hole wall of the mounting hole 20 through the first bearing 18, and the second connecting section 17 is movably connected to the hole wall of the mounting hole 20 through the second bearing 19.

[0049] Preferably, both the first bearing 18 and the second bearing 19 are commercially available wear-resistant sliding bearings that are compatible with this design. The bearings are coated with a wear-resistant layer, which can meet the requirement of minimal wear after 1 million pedal strokes.

[0050] like Figure 1 , Figure 8 Furthermore, this embodiment also includes the following technical solution: In the new energy brake pedal assembly of this embodiment, the bracket 1 is provided with a first limiting surface 21, and the shaft 9 is provided with a second limiting surface 22. The first limiting surface 21 and the second limiting surface 22 both extend radially along the shaft 9. Along the axial direction of the shaft 9, a first gap is provided between the first limiting surface 21 and the second limiting surface 22. It also includes a first plastic washer 23, which is disposed in the first gap, and both sides of the first plastic washer 23 are in contact with the first limiting surface 21 and the second limiting surface 22, respectively.

[0051] In addition, the bracket 1 is provided with a third limiting surface, and also includes a nut assembly 24, which is connected to the tail end of the shaft 9. A fourth limiting surface is provided on one side of the nut assembly 24. Both the third and fourth limiting surfaces extend radially along the shaft 9. A second gap is provided between the third and fourth limiting surfaces along the axial direction of the shaft 9. It also includes a second plastic washer 25, which is disposed within the second gap, and both sides of the second plastic washer 25 contact the third and fourth limiting surfaces, respectively. The setting method and principle of the third and fourth limiting surfaces are similar to those of the first limiting surface 21 and the second limiting surface 22, and will not be described in detail here.

[0052] The nut assembly includes structures such as flat washers, spring washers, and hexagonal nuts, which are used to fix the tail end of the shaft 9 to the bracket 1. This is common knowledge and will not be described in detail here.

[0053] Both the first plastic washer 23 and the second plastic washer 25 are made of plastic material. The hardness of the plastic material is less than that of the shaft 9 and also less than that of the bracket 1.

[0054] In this embodiment, along the axial direction of the shaft 9, the shaft 9 contacts the bracket 1 through the first plastic washer 23 and the second plastic washer 25 respectively. This causes the first plastic washer 23 and the second plastic washer 25 to be worn during the rotation of the shaft 9 relative to the bracket 1, thereby protecting the surfaces of the shaft 9 and the bracket 1. At the same time, the setting of the first plastic washer 23 and the second plastic washer 25 also avoids axial movement caused by assembly tolerance and axial wear of the shaft 9 in the early stage of assembly, thereby avoiding unstable output signal of the Hall sensor.

[0055] In the existing technology CN205168472U, the Hall shaft and the sensor housing will also generate sliding contact friction during use. That is, the Hall shaft rotates while the sensor housing remains stationary, and sliding contact friction occurs between the outer circumferential surface of the Hall shaft and the inner circumferential wall of the sensor housing. Over time, this will cause wear on the outer circumferential surface of the Hall shaft and / or the inner circumferential wall of the sensor housing, resulting in a larger gap between the Hall shaft and the sensor housing. The Hall shaft will also experience radial wobble during use, causing the relative position between the magnet and the Hall sensor circuit board to change radially along the Hall shaft, resulting in unstable Hall sensor output signal.

[0056] In this embodiment, the Hall effect shaft is incorporated as part of the pedal shaft assembly 2. This embodiment can be seen as combining the existing pedal shaft and Hall effect shaft into the pedal shaft assembly 2. The shaft 9 of the pedal shaft assembly 2 is connected to the wall of the mounting hole 20 of the bracket 1 via a first bearing 18 and a second bearing 19 along the circumferential direction. That is, the outer circumferential surface of the shaft 9 is fixed relative to the inner rings of the first bearing 18 and the second bearing 19, respectively. Therefore, no direct slippage occurs between the outer circumferential surface of the shaft 9 and the wall of the mounting hole 20. The dynamic contact friction only involves minor wear between the outer circumferential surface of the shaft 9 and the inner rings of the first bearing 18 and the second bearing 19. This results in the radial relative position between the magnet 3 and the Hall chip 7 on the pedal shaft assembly 2 remaining almost unchanged, thus preventing the relative position between the magnet 3 and the circuit board 5 from changing radially along the shaft 9. Furthermore, the shaft 9 also maintains a small clearance fit with the wall of the mounting hole 20 through the first bearing 18, the second bearing 19, and the first bearing 19, reducing the radial wobble of the shaft 9 and thus preventing unstable output signals from the Hall chip 7.

[0057] Furthermore, in the new energy brake pedal assembly of this embodiment, the Hall chip 7 includes two small chips, which are symmetrically distributed on both sides of the axis of the shaft 9. In this embodiment, the hollow convex shell 6 integrates two small chips, which can correspondingly output two curves of voltage and angle travel. The two curves use separate input power and grounding; one curve is used to verify the other curve, such as... Figure 9 As shown in the example, the curve signal of signal 2 verifies the curve signal of signal 1, which can improve driving safety and reliability.

[0058] During use, when the driver presses the brake pedal, the pedal arm drives the pedal shaft assembly 2 to rotate, and the magnet 3 rotates with the pedal shaft assembly 2. During the rotation, the magnetic field of the magnet 3 changes, and the Hall chip 7 senses the change in magnetic field and outputs a voltage signal through the circuit board 5. As the rotation angle of the pedal arm increases, the voltage increases relatively. The vehicle ECU receives the voltage signal change, calculates the position change value of the pedal arm, and outputs a signal to the vehicle's electric braking system to output an electric braking signal. At the same time, the vehicle's energy recovery system also starts to work.

[0059] Example 2

[0060] This embodiment proposes a brake assembly, which includes the new energy brake pedal assembly mentioned in Embodiment 1.

[0061] Example 3

[0062] This embodiment proposes a new energy vehicle, which includes the new energy brake pedal assembly mentioned in Embodiment 1; or includes the brake assembly mentioned in Embodiment 2.

[0063] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A new energy brake pedal assembly, comprising a bracket (1), characterized in that, It also includes a pedal shaft assembly (2) that is rotatably mounted on a bracket (1); It also includes two magnets (3) fixedly installed on the pedal shaft assembly (2), with the two magnets (3) symmetrically distributed on both sides of the axis of the pedal shaft assembly (2); It also includes a sensor housing (4) mounted on a bracket (1) and a circuit board (5) fixed inside the sensor housing (4). The sensor housing (4) is provided with a barrel-shaped hollow convex shell (6). The hollow convex shell (6) extends into the gap between two magnets (3), and the outer surface of the hollow convex shell (6) does not contact the outer surface of the magnets (3). A Hall chip (7) is provided inside the hollow convex shell (6), and the circuit board (5) is communicatively connected to the Hall chip (7).

2. The new energy brake pedal assembly according to claim 1, characterized in that, It also includes a yoke magnetic ring (8), the inner ring of which is wrapped around two magnets (3).

3. The new energy brake pedal assembly according to claim 2, characterized in that, The pedal shaft assembly (2) includes a shaft body (9) and a plastic spindle frame (10), wherein the plastic spindle frame (10) includes a first connecting part (11) and a second connecting part (12) coaxially connected. The first connecting part (11) is detachably connected to the shaft (9) by fasteners. The second connecting part (12) is provided with a riveting part (13) at one end away from the first connecting part (11). A part of the yoke magnetic ring (8) is inseparably restricted on the riveting part (13). A first gap (14) and a second gap (15) are formed between the inner ring surface of the yoke magnetic ring (8) and the riveting part (13). The first gap (14) and the second gap (15) are symmetrically distributed on both sides of the axis of the shaft body (9). One magnet (3) is inserted into the first gap (14) and the other magnet (3) is inserted into the second gap (15).

4. The new energy brake pedal assembly according to claim 3, characterized in that, The Hall chip (7) consists of two small chips, which are symmetrically distributed on both sides of the axis of the shaft (9).

5. The new energy brake pedal assembly according to claim 3, characterized in that, Along the axial direction of the shaft (9), the distance between the Hall chip (7) and the magnet (3) is configured to a preset distance.

6. The new energy brake pedal assembly according to claim 3, characterized in that, The end of the shaft (9) used to install the plastic mandrel frame (10) is the head end, and the end opposite to the head end is the tail end; The shaft (9) is provided with a first connecting section (16) and a second connecting section (17). Both the first connecting section (16) and the second connecting section (17) are located between the head end and the tail end, and the first connecting section (16) is located between the second connecting section (17) and the head end. It also includes a first bearing (18) and a second bearing (19). The bracket (1) is provided with a mounting hole (20). Along the circumferential direction of the shaft (9), the first connecting section (16) is movably connected to the wall of the mounting hole (20) through the first bearing (18), and the second connecting section (17) is movably connected to the wall of the mounting hole (20) through the second bearing (19).

7. The new energy brake pedal assembly according to claim 6, characterized in that, The bracket (1) is provided with a first limiting surface (21), and the shaft (9) is provided with a second limiting surface (22). The first limiting surface (21) and the second limiting surface (22) both extend radially along the shaft (9). Along the axial direction of the shaft (9), a first gap is provided between the first limiting surface (21) and the second limiting surface (22). It also includes a first plastic washer (23). The first plastic washer (23) is provided in the first gap, and the two sides of the first plastic washer (23) are in contact with the first limiting surface (21) and the second limiting surface (22) respectively.

8. The new energy brake pedal assembly according to claim 7, characterized in that, The bracket (1) is provided with a third limiting surface and also includes a nut assembly (24). The nut assembly (24) is connected to the tail end of the shaft (9). A fourth limiting surface is provided on one side of the nut assembly (24). Both the third and fourth limiting surfaces extend radially along the shaft (9). A second gap is provided between the third and fourth limiting surfaces along the axial direction of the shaft (9). It also includes a second plastic washer (25). The second plastic washer (25) is located in the second gap, and both sides of the second plastic washer (25) are in contact with the third and fourth limiting surfaces, respectively.

9. A brake assembly, characterized in that, The new energy brake pedal assembly includes any one of claims 1-7.

10. A new energy vehicle, characterized in that, It includes the new energy brake pedal assembly as described in any one of claims 1-7; or it includes the brake assembly as described in claim 9.

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