Brake caliper, brake assembly and vehicle

Abstract

The utility model discloses a brake caliper, a brake assembly and a vehicle, the brake caliper comprises a caliper body, a brake assembly and a brake assembly, and a cavity is formed in the caliper body; the piston is movably arranged in the cavity body; the friction plate is arranged on the caliper body and located at the end of the piston, and the friction plate is suitable for being connected with the piston in an abutting mode and clamping a brake disc when the piston moves; the detection part is arranged on the caliper body in a penetrating mode, the detection part is provided with a detection end, the detection end extends into the cavity, and the detection part is suitable for detecting the shortest distance between the piston and the detection end so as to judge the position state of the piston. According to the brake caliper provided by the embodiment of the invention, the position state of the piston is monitored in real time by arranging the detection piece, so that the driving comfort and safety of a user are improved.

Description

Technical Field

[0001] This application relates to the field of vehicles, and in particular to a brake caliper, a brake assembly, and a vehicle. Background Technology

[0002] In the field of automotive braking technology, the stability and safety of vehicle braking systems are of paramount importance. However, after experiencing significant lateral acceleration, such as during high-speed cornering or emergency lane changes, existing vehicles may experience piston slippage and retraction in the braking system. This results in an increased amount of brake fluid consumed to eliminate the gap between the piston and friction pads during the initial braking action. Consequently, the driver may experience prolonged pedal travel and difficulty in stopping the vehicle during emergency braking. This abnormal braking condition can prevent the vehicle from stopping promptly during emergency braking, easily leading to accidents and posing a significant safety hazard. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, one objective of this application is to provide a brake caliper that uses a detection element to monitor the piston position in real time, thereby improving user driving comfort and safety.

[0004] This application also proposes a brake assembly having the aforementioned brake calipers.

[0005] This application also proposes a vehicle having the above-described braking assembly.

[0006] A brake caliper according to an embodiment of this application includes: a caliper body having a cavity formed therein; a piston movably disposed within the cavity; a friction plate disposed on the caliper body and located at the end of the piston, the friction plate being adapted to abut against the piston and clamp a brake disc when the piston moves; and a detection element passing through the caliper body, the detection element having a detection end extending into the cavity, the detection element being adapted to detect the shortest distance between the piston and the detection end to determine the position state of the piston.

[0007] According to an embodiment of this application, the brake caliper is provided with a detection element that penetrates through the caliper body and has a detection end that extends into the internal cavity of the caliper body. The detection end determines the position state of the piston by detecting the shortest distance between the piston and the detection end. Therefore, by providing a detection element, the position state of the piston can be monitored in real time, improving the driving comfort of the driver, reducing the accident rate, and ensuring the safety of the occupants.

[0008] In some embodiments of this application, the caliper body has a mounting hole that extends through in a first direction, at least a portion of the detection element passes through the mounting hole and is sealed to the inner wall of the mounting hole, and the detection end is formed at the end of the detection element facing the cavity.

[0009] In some embodiments of this application, the caliper body has a first wall and a second wall, the first wall and the second wall defining the cavity, the first wall fitting against a portion of the outer peripheral wall of the piston, the second wall corresponding to the bottom wall of the piston along the first direction, and the second wall forming a mounting hole through the first direction.

[0010] In some embodiments of this application, the brake caliper further includes a controller, which is electrically or signal-connected to the detection element, and is adapted to control the piston to move when the difference between the current distance between the piston and the detection end and the preset distance between the piston and the detection end exceeds a preset range.

[0011] In some embodiments of this application, the first wall surface is formed with an oil delivery hole communicating with the cavity.

[0012] In some embodiments of this application, the first wall surface is formed with a mounting groove arranged circumferentially, and the brake caliper further includes a sealing ring, which is disposed in the mounting groove and is sealed to the outer peripheral wall of the piston.

[0013] In some embodiments of this application, there are two friction pads spaced apart on the caliper body along a first direction, one of which is adapted to abut against the piston and clamp the brake disc.

[0014] In some embodiments of this application, the detection element is configured as a position sensor.

[0015] The braking assembly of an embodiment of this application is described below.

[0016] The braking assembly according to the embodiments of this application is provided with a brake disc and a brake caliper as described above, wherein at least a portion of the brake disc is located within the caliper body and is disposed corresponding to the friction pad.

[0017] The braking assembly according to the embodiments of this application is provided with a brake disc and a brake caliper as described in the above embodiments. Therefore, the brake caliper of the braking assembly is provided with a detection element that penetrates through the caliper body and has a detection end that extends into the internal cavity of the caliper body. The detection end determines the position state of the piston by detecting the shortest distance between the piston and the detection end. Therefore, by providing a detection element, the position state of the piston can be monitored in real time, improving the driving comfort of the driver, reducing the accident rate, and ensuring the safety of the occupants.

[0018] The vehicle of an embodiment of this application is described below.

[0019] The vehicle according to the embodiments of this application is equipped with the braking assembly of the above embodiments. Since the vehicle according to the embodiments of this application is equipped with the braking assembly of the above embodiments, the braking assembly of the vehicle has a brake caliper. The brake caliper is provided with a detection element, which is disposed through the caliper body and has a detection end extending into the internal cavity of the caliper body. The detection end determines the position state of the piston by detecting the shortest distance between the piston and the detection end. Therefore, by providing a detection element, the position state of the piston can be monitored in real time, improving the driving comfort of the driver, reducing the accident rate, and ensuring the safety of the occupants.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the braking assembly according to an embodiment of this application;

[0023] Figure 2 yes Figure 1 Schematic diagram of the cross section of AA;

[0024] Figure 3 This is a schematic diagram of the piston during retraction according to an embodiment of this application.

[0025] Figure label:

[0026] 10. Brake caliper; 11. Caliper body; 111. Cavity; 112. Mounting hole;

[0027] 113. First wall surface; 1131. Oil inlet; 1132. Mounting groove; 114. Second wall surface;

[0028] 12. Piston; 13. Friction plate; 14. Detector; 141. Detector end; 15. Sealing ring;

[0029] 20. Brake assembly; 21. Brake disc. Detailed Implementation

[0030] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0031] The following is for reference. Figures 1-3 The brake caliper 10 according to an embodiment of the present application is described. The brake caliper 10 includes a caliper body 11, a piston 12, a friction plate 13, and a detection element 14.

[0032] A cavity 111 is formed within the caliper body 11. A piston 12 is movably disposed within the cavity 111. A friction plate 13 is disposed on the caliper body 11 and located at the end of the piston 12. The friction plate 13 is adapted to abut against the piston 12 and clamp the brake disc 21 when the piston 12 moves. A detection element 14 passes through the caliper body 11 and has a detection end 141 extending into the cavity 111. The detection element 14 is adapted to detect the shortest distance between the piston 12 and the detection end 141 to determine the positional state of the piston 12.

[0033] Currently, in the field of automotive braking technology, the stability and safety of vehicle braking systems are of paramount importance. However, after experiencing significant lateral acceleration, such as during high-speed cornering or emergency lane changes, existing vehicles may experience piston slippage and retraction in the braking system. This results in an increased amount of brake fluid consumed during the initial braking to eliminate the gap between the piston and the friction pads. Consequently, drivers may experience prolonged pedal travel and difficulty in stopping the vehicle during emergency braking. This abnormal braking situation can prevent the vehicle from stopping promptly during emergency braking, easily leading to accidents and posing a significant safety hazard.

[0034] In response, this application proposes a brake caliper 10, which uses a detection element 14 to monitor the position of the piston 12 in real time, thereby improving the user's driving comfort and safety.

[0035] Specifically, the brake caliper 10 may include a caliper body 11, a piston 12, a friction pad 13, and a detection element 14. The caliper body 11 may have a cavity 111 inside. The piston 12 is movably disposed in the cavity 111, meaning the piston 12 can selectively move relative to the cavity 111. Optionally, the piston 12 can be moved by hydraulic oil. The friction pad 13 may be disposed at the caliper body 11 and located at the end of the piston 12. The friction pad 13 can abut against and clamp the brake disc 21 when the piston 12 moves. It is understood that when the piston 12 moves within the cavity 111, the end of the piston 12 can abut against the friction pad 13. Simultaneously, the piston 12 continues to move, causing the friction pad 13 to move synchronously, enabling the friction pad 13 to abut against and clamp the brake disc 21, thereby achieving the braking effect on the brake disc 21.

[0036] Furthermore, the detection element 14 can be inserted into the caliper body 11, and the detection element 14 can be provided with a detection end 141, which can extend into the cavity 111. The detection element 14 can detect the shortest distance between the piston 12 and the detection end 141, thereby determining the position state of the piston 12. Optionally, the detection element 14 can be constructed as a position sensor, infrared sensor, or other detection device. In some embodiments, the detection element 14 can detect the shortest distance between the piston 12 and the detection end 141. When the shortest distance between the piston 12 and the detection end 141 is greater than the shortest distance between the piston 12 and the detection end 141 in the normal state, it is determined that the piston 12 is in an abnormal position. Subsequently, functions such as reminding the user or resetting the piston 12 can be performed to improve the driving comfort and safety of the vehicle driver.

[0037] In short, the brake caliper 10 of this application embodiment is provided with a detection element 14, which is disposed through the caliper body 11. The detection element 14 has a detection end 141 extending into the internal cavity 111 of the caliper body 11. The detection end 141 determines the position state of the piston 12 by detecting the shortest distance between the piston 12 and the detection end 141. Therefore, by providing the detection element 14, the position state of the piston 12 can be monitored in real time, improving the driving comfort of the driver, reducing the accident rate, and ensuring the safety of the driver and passengers.

[0038] like Figure 2 and Figure 3As shown, in some embodiments of this application, the caliper body 11 may have a through mounting hole 112. Specifically, the mounting hole 112 may be through-hole along a first direction. At least a portion of the detection element 14 may pass through the mounting hole 112, and the detection element 14 may be sealed to the inner wall of the mounting hole 112. Optionally, the detection element 14 and the inner wall of the mounting hole 112 may be bonded and sealed with structural adhesive. By sealing the detection element 14 to the inner wall of the mounting hole 112, the cavity 111 may be kept in a sealed condition, thus preventing hydraulic oil leakage in the cavity 111 from affecting the braking effect. The end of the detection element 14 facing the cavity 111 may have a detection end 141, which enables the detection end 141 to more effectively detect the shortest distance between the piston 12 and the detection end 141, thereby improving the detection efficiency of the detection element 14.

[0039] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the caliper body 11 may have a first wall surface 113 and a second wall surface 114. The first wall surface 113 and the second wall surface 114 may define a cavity 111. The first wall surface 113 may fit against a portion of the outer peripheral wall of the piston 12. The second wall surface 114 may be correspondingly arranged with the bottom wall of the piston 12 along a first direction. The second wall surface 114 may have a mounting hole 112 that extends through the first direction. This arrangement facilitates the installation of the detection element 14 and the detection effect of the detection element 14.

[0040] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the brake caliper 10 may further include a controller. The controller may be electrically or signal-connected to the detection element 14. The controller may control the piston 12 to move when the difference between the current distance between the piston 12 and the detection end 141 and the preset distance between the piston 12 and the detection end 141 exceeds a preset range. It should be noted that when the piston 12 is in the normal position, the detection element 14 may detect that the preset distance between the piston 12 and the detection end 141 is L0. When the detection element 14 detects that the current distance L1 between the piston 12 and the detection end 141 satisfies the following condition: 0.4m When m≤L0-L1≤0.7mm, it is determined that piston 12 has retracted. At this time, the controller can control piston 12 to reset when it moves. Optionally, the detection element 14 can be transmitted to the controller via a transmission cable. The controller performs calculation and analysis and applies pressure to the corresponding wheel end to prevent piston 12 from retracting further. At the same time, it pushes piston 12 to move towards friction plate 13, which eliminates the excessive gap between piston 12 and friction plate 13 in time, so that piston 12 and friction plate 13 are always in a normal gap and can respond normally to the driver's braking needs at any time.

[0041] like Figure 2 and Figure 3As shown, in some embodiments of this application, the first wall surface 113 may have an oil inlet 1131, which can communicate with the cavity 111. Hydraulic oil can enter the cavity 111 through the oil inlet 1131, thereby pushing the piston 12 to abut against the friction plate 13, so that the friction plate 13 contacts the brake disc 21 and achieves the braking effect. The first wall surface 113 may have a mounting groove 1132, which can be arranged circumferentially. The brake caliper 10 may also include a sealing ring 15, which can be disposed in the mounting groove 1132 and can be sealed to the outer peripheral wall of the piston 12, thereby ensuring the sealing effect between the piston 12 and the cavity 111. By setting the sealing ring 15, the piston 12 and the cavity 111 can be kept in a sealed condition, preventing hydraulic oil leakage in the cavity 111 from affecting the braking effect.

[0042] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the number of friction pads 13 can be two. The two friction pads 13 can be spaced apart along the first direction at the caliper body 11. One of the friction pads 13 can abut against the piston 12 and clamp the brake disc 21. It can be understood that when hydraulic oil enters the cavity 111 through the oil inlet 1131, the hydraulic oil can push the piston 12 toward the friction pad 13 and abut against the friction pad 13. While the piston 12 continues to move, it can push the friction pad 13 to move, so that the friction pad 13 can abut against the brake disc 21. When the friction pad 13 abuts against the brake disc 21, the caliper body 11 can move relative to the brake disc 21, so that the other friction pad 13 on the opposite side of the friction pad 13 can abut against the other side of the brake disc 21, thereby realizing the braking effect of the brake caliper 10.

[0043] The braking assembly 20 according to an embodiment of this application is described below.

[0044] like Figure 1 and Figure 2 As shown, the brake assembly 20 according to the embodiment of this application is provided with a brake disc 21 and a brake caliper 10 as described above. At least a portion of the brake disc 21 is located inside the caliper body 11 and is correspondingly disposed with respect to the friction pad 13.

[0045] The brake assembly 20 according to the embodiments of this application is provided with a brake disc 21 and a brake caliper 10 as described in the above embodiments. Therefore, the brake caliper 10 of the brake assembly 20 is provided with a detection element 14, which is disposed through the caliper body 11. The detection element 14 has a detection end 141 extending into the internal cavity 111 of the caliper body 11. The detection end 141 determines the position state of the piston 12 by detecting the shortest distance between the piston 12 and the detection end 141. Therefore, by providing the detection element 14, the position state of the piston 12 can be monitored in real time, improving the driving comfort of the driver, reducing the accident rate, and ensuring the safety of the occupants.

[0046] The vehicle of an embodiment of this application is described below.

[0047] The vehicle according to the embodiments of this application is equipped with the braking assembly 20 of the above embodiments. Since the vehicle according to the embodiments of this application is equipped with the braking assembly 20 of the above embodiments, the braking assembly 20 of the vehicle has a brake caliper 10. The brake caliper 10 is provided with a detection element 14, which is disposed through the caliper body 11. The detection element 14 has a detection end 141 extending into the internal cavity 111 of the caliper body 11. The detection end 141 determines the position state of the piston 12 by detecting the shortest distance between the piston 12 and the detection end 141. Therefore, by providing the detection element 14, the position state of the piston 12 can be monitored in real time, improving the driving comfort of the driver, reducing the accident rate, and ensuring the safety of the occupants.

[0048] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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 application.

[0049] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0050] In the description of this application, "multiple" means two or more.

[0051] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0052] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A brake caliper, characterized in that, include: The caliper body has a cavity formed inside it; A piston, which is movably disposed within the cavity; A friction pad is disposed on the caliper body and located at the end of the piston, and the friction pad is adapted to abut against the piston and clamp the brake disc when the piston moves; A detection element is inserted through the caliper body. The detection element has a detection end that extends into the cavity. The detection element is adapted to detect the shortest distance between the piston and the detection end to determine the position state of the piston.

2. The brake caliper according to claim 1, characterized in that, The caliper body has a mounting hole that extends through the caliper in a first direction. At least a portion of the detection element passes through the mounting hole and is sealed to the inner wall of the mounting hole. The detection end is formed at the end of the detection element facing the cavity.

3. The brake caliper according to claim 2, characterized in that, The caliper body has a first wall and a second wall, the first wall and the second wall defining the cavity, the first wall fitting against a portion of the outer peripheral wall of the piston, the second wall corresponding to the bottom wall of the piston along the first direction, and the second wall having a mounting hole extending through the first direction.

4. The brake caliper according to any one of claims 1-3, characterized in that, Also includes: A controller, which is electrically or signal-connected to the detection element, is adapted to control the piston to move when the difference between the current distance between the piston and the detection end and the preset distance between the piston and the detection end exceeds a preset range.

5. The brake caliper according to claim 3, characterized in that, The first wall surface has an oil delivery hole that communicates with the cavity.

6. The brake caliper according to claim 3, characterized in that, The first wall surface has a mounting groove arranged circumferentially, and the brake caliper further includes: A sealing ring is disposed in the mounting groove and is sealed to the outer peripheral wall of the piston.

7. The brake caliper according to claim 1, characterized in that, The friction pads are two and spaced apart along a first direction on the caliper body, one of which is adapted to abut against the piston and clamp the brake disc.

8. The brake caliper of claim 1, wherein, The detection device is constructed as a position sensor.

9. A braking assembly, characterized in that, It includes a brake disc and a brake caliper as described in any one of claims 1-8, wherein at least a portion of the brake disc is located within the caliper body and is disposed corresponding to the friction pad.

10. A vehicle characterized by comprising: Includes the braking assembly as described in claim 9.

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