Brake assembly with speed monitoring device and vehicle with brake assembly

Abstract

The utility model relates to the technical field of automobile braking, in particular to a brake assembly with a speed monitoring device, which comprises a brake disc, a caliper assembly, a sensor assembly and a mounting portion, the brake disc is matched with the caliper assembly and used for vehicle braking, a follower is arranged on the brake disc, the sensor assembly is fixed on the caliper assembly through the mounting portion, and the speed monitoring device is arranged on the caliper assembly. The rotating speed sensor is arranged opposite to the follower and used for detecting the rotating speed of the brake disc. According to the brake assembly with the speed monitoring device, the sensor is fixed to the caliper assembly through the installation part, the follower is arranged on the surface of the brake disc, installation and maintenance can be facilitated, and the installation efficiency and the detection accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive braking technology, and in particular to a braking assembly with a speed monitoring device and a vehicle having the same. Background Technology

[0002] Traditional vehicle speed monitoring systems typically require sensors in conjunction with gear rings to detect vehicle speed. These gear rings are mounted on the wheel hub bearings or axles that rotate with the wheels, working in conjunction with the sensors to detect the vehicle's actual speed. However, when the gear ring is mounted on components such as wheel hub bearings, detection errors can easily occur due to loose or worn bearings. Furthermore, installation and maintenance are inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a braking assembly with a speed monitoring device and a vehicle having the same, wherein the speed monitoring device is easy to install and has high detection accuracy.

[0004] To achieve the above objectives, this utility model proposes a braking assembly with a speed monitoring device, including a brake disc, a caliper assembly, a sensor assembly, and a mounting part. The brake disc and the caliper assembly cooperate for vehicle braking. The brake disc is provided with a follower. The sensor assembly is fixed to the caliper assembly through the mounting part and is arranged opposite to the follower to detect the rotational speed of the brake disc.

[0005] Optionally, the follower is a detection tooth or a magnetic coding strip disposed on the surface of the brake disc.

[0006] Optionally, the detection teeth are integrally formed in the middle of the brake disc. The caliper assembly is integrally formed in the mounting portion, and the sensor assembly includes a sensor, one end of which is fixedly embedded in the mounting portion.

[0007] Optionally, the caliper assembly includes a caliper motor, the caliper motor including a first housing near the brake disc and a second housing away from the brake disc, the mounting part being integrally formed on the first housing, and the mounting part having a through hole, the sensor being embedded in the through hole.

[0008] Optionally, the sensor is provided with a sensor signal input terminal and a sensor signal output terminal, the caliper motor includes a motor signal input terminal and a motor signal output terminal, the sensor signal input terminal is disposed opposite to the follower, and the sensor signal output terminal and the motor signal output terminal are integrated together.

[0009] Optionally, the caliper assembly is provided with a mounting ear, the mounting part is fixed to the mounting ear, and the sensor is fixedly connected to the caliper assembly through the mounting part and the mounting ear.

[0010] The braking assembly with speed monitoring device of this utility model also includes fasteners, and the mounting part is fixed to the mounting ear by the fasteners.

[0011] Optionally, the sensor assembly includes a sensor, a wiring harness connector, and an external wiring harness. The sensor has a sensor signal input terminal, which is inserted into the mounting portion. The wiring harness connector is opposite to the sensor signal input terminal, and the external wiring harness is inserted into the wiring harness connector. The caliper assembly includes a caliper motor, and the external wiring harness is integrated with the motor signal output terminal of the caliper motor.

[0012] This utility model also proposes a vehicle including the aforementioned braking assembly with speed monitoring device.

[0013] Compared with the prior art, the technical solution of this utility model has the following advantages: In the braking assembly with speed monitoring device of this utility model, the sensor is fixed to the caliper assembly through the mounting part, and the follower is set on the surface of the brake disc, which can facilitate installation and maintenance, improve installation efficiency and detection accuracy. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the braking assembly with a speed monitoring device in the first embodiment of the present invention.

[0016] Figure 2 This is a side cross-sectional view of the braking assembly with a speed monitoring device in the first embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the braking assembly with a speed monitoring device in the second embodiment of the present invention.

[0018] Figure 4 This is a partial cross-sectional view of the braking assembly with a speed monitoring device in the second embodiment of this utility model.

[0019] Figure 5 This is an exploded view of the braking assembly with a speed monitoring device in the second embodiment of this utility model.

[0020] Figure 6This is an exploded view of the sensor assembly in the second embodiment of this utility model.

[0021] Figure 7 This is a partial schematic diagram of the mounting ear in the second embodiment of the present invention.

[0022] In the picture:

[0023] 1-Brake disc; 11-Follower component;

[0024] 2-caliper assembly; 21-caliper bracket; 211-mounting ear; 211a-second mounting surface; 211b-groove; 211c-second mounting hole; 22-caliper body; 221-first brake pad; 222-second brake pad;

[0025] 3-Caliper motor; 31-Motor signal output terminal; 32-External wiring harness; 33-First housing; 34-Second housing;

[0026] 4-Sensor assembly; 41-Sensor; 411-Sensor signal input terminal; 42-Wire harness connector;

[0027] 5-Mounting part; 51-Connecting hole; 52-First mounting surface; 53-First mounting hole; 54-Mounting boss; 55-Reinforcing rib;

[0028] 6-Fasteners. Detailed Implementation

[0029] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0030] The terms “upper,” “lower,” “top,” “bottom,” “inner,” and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use. They are used only for the convenience of description and simplification, 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. Therefore, they should not be construed as limitations on this utility model.

[0031] The terms “first”, “second”, etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0032] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0033] like Figure 1 and Figure 2 As shown, this utility model proposes a vehicle, including a braking assembly with a speed monitoring device, a wheel hub, and an axle. The braking assembly with the speed monitoring device includes a brake disc 1, a caliper assembly 2, a follower 11, and a sensor assembly 4. The brake disc 1 is disc-shaped, and a portion of the caliper assembly 2 is disposed on both sides of the brake disc 1 for braking the brake disc 1. The brake disc 1 is fixedly connected to the vehicle's wheel hub or axle and is coaxially arranged with the vehicle's wheel, rotating synchronously. The follower 11 is disposed on the surface of the brake disc 1, and the sensor assembly 4 is disposed on the caliper assembly 2, with the sensor assembly 4 positioned opposite to the follower 11. The sensor assembly 4 detects the frequency of reflected information from the follower 11 to determine the rotational speed of the brake disc 1, and calculates the vehicle's speed by combining this information with factors such as tire size.

[0034] Specifically, the caliper assembly 2 includes a caliper body 22, a caliper motor 3, and a caliper bracket 21. The caliper body 22 includes a first brake pad 221 and a second brake pad 222, which are respectively disposed on both sides of the brake disc 1. The first brake pad 221 is fixedly connected to the caliper bracket 21, and the second brake pad 222 can reciprocate linearly relative to the caliper bracket 21 in a direction away from and towards the first brake pad 221. A portion of the brake disc 1 is clamped between the first brake pad 221 and the second brake pad 222. During braking, the caliper motor 3 drives the second brake pad 222 to move towards the first brake pad 221, thereby clamping the brake disc 1 and reducing the rotational speed of the wheel through friction to achieve deceleration or stopping.

[0035] In one example, the follower 11 is a detection tooth or magnetic coding strip disposed on the surface of the brake disc 1, and several follower 11s are arranged in a ring on the end face or outer peripheral surface of the brake disc 1. When the brake disc 1 rotates, its end face edge and / or outer peripheral surface are easily contaminated due to centrifugal force and other reasons. Preferably, the follower 11 is disposed on the end face of the brake disc 1 in an area a certain distance from the edge of the brake disc 1. Specifically, the follower 11 is disposed on the end face of the brake disc 1 near its center to prevent contamination from affecting the accuracy of detection. Furthermore, this arrangement makes the overall structure more compact and saves space. When the follower 11 is a detection tooth, it can be directly formed on the surface of the brake disc 1 by machining, ensuring the relative position of the follower 11 and the brake disc 1, thus ensuring detection accuracy. When the follower 11 is a magnetic coding strip, it can be bonded to the brake disc 1, also ensuring detection accuracy. Additionally, in some examples, the number of follower elements 11 can be increased to make the distribution of detection teeth or magnetic coding strips denser. Specifically, by increasing the number of detection teeth or magnetic coding strips, the spacing between detection teeth or magnetic coding strips can be reduced, thereby improving detection accuracy.

[0036] When the follower 11 is installed on other components such as the wheel hub bearing, the wheel hub bearing is prone to detection errors due to looseness or wear. However, since the brake disc 1 rotates synchronously with the wheel, installing the follower 11 on the brake disc 1 helps to reflect the actual rotational speed of the wheel. In addition, the brake disc usually has a large and relatively flat surface, and compared with the wheel hub and steering knuckle, the design of the brake disc is relatively standardized in different vehicle models, which is conducive to the installation of the follower, facilitates fault detection and maintenance, and improves adaptability.

[0037] Furthermore, the sensor assembly 4 includes a sensor 41, which includes a sensor signal input terminal 411 and a sensor signal output terminal. The caliper motor 3 includes a motor signal input terminal and a motor signal output terminal 31. In this invention, since the sensor assembly 4 is mounted on the caliper assembly 2, the sensor signal output terminal can be integrated into the motor signal output terminal 31, allowing both the sensor signal output terminal and the motor signal output terminal 31 to be located in the same wiring harness connector. Compared to when the sensor is mounted on the wheel hub or steering knuckle, requiring the sensor wiring harness to be connected to the vehicle wiring harness and then transmitting data with the vehicle controller via the vehicle wiring harness, this invention reduces the amount of wiring harness used, lowers the complexity and cost of wiring, and reduces the risk of wiring harness interference by fixing the sensor assembly 4 to the caliper assembly 2 and integrating the sensor signal output terminal into the motor signal output terminal 31. Optionally, the sensor 41 can be a magnetoelectric sensor, Hall sensor, or magnetoresistive sensor, etc., as described in the prior art.

[0038] First Embodiment

[0039] Please see Figure 1 The caliper motor 3 includes a first housing 33 near the brake disc 1 and a second housing 34 away from the brake disc 1. In this embodiment, a portion of the first housing 33 is formed as a mounting part 5. Specifically, the mounting part 5 has a through hole through which the sensor 41 passes and is integrally embedded in the first housing 33 by injection molding, and is connected to the caliper motor 3 as a whole. This can simplify the assembly steps of the braking assembly and improve the installation efficiency.

[0040] Specifically, the axis of the sensor signal input terminal 411 of sensor 41 is perpendicular to the end face of brake disc 1 and faces the follower 11. The sensor signal output terminal of sensor 41 is integrated into the motor signal output terminal 31 of caliper motor 3 through the aforementioned through hole. In this embodiment, the working principle of the brake assembly with speed monitoring device of this utility model is as follows: the sensor signal input terminal 411 collects the rotation speed signal of brake disc 1 and transmits it to the sensor signal output terminal. The motor signal output terminal 31 of caliper motor 3 transmits the rotation speed signal of brake disc 1 and the working signal of caliper assembly 2 to vehicle controller at the same time. After receiving the rotation speed signal, the vehicle controller calculates the actual driving speed of the vehicle by combining parameters such as tire size, so as to give instructions such as stabilizing the vehicle body or clamping brake disc 1.

[0041] Second Embodiment

[0042] Please see Figures 3 to 5 The main difference between this embodiment and the first embodiment is the structure of the mounting part 5. The mounting part 5 in this embodiment is roughly flat. The sensor 41 is fixed to the caliper bracket 21 or the caliper motor 3 through the mounting part 5 and is arranged opposite to the follower 11 to detect the rotation speed of the brake disc 1.

[0043] In one example, sensor 41 is fixedly connected to one side of caliper bracket 21 via mounting part 5. Optionally, mounting part 5 has a connection hole 51 through which sensor 41 passes and is fixedly connected to mounting part 5. Mounting part 5 can also be integrally formed with the housing of sensor 41. Understandably, the size and position of mounting part 5 can be adaptively adjusted according to different vehicle models to improve adaptability.

[0044] In another example, the mounting part 5 is integrally formed with the caliper bracket 21. By pre-designing the setting position of the mounting part 5 on the caliper bracket 21, the mounting part 5 and the caliper bracket 21 are integrally formed. When the vehicle is in motion, the mounting part 5 can be prevented from shifting relative to the caliper bracket 21 due to vibration or other reasons, thereby improving the accuracy of the detection.

[0045] like Figure 6As shown, the sensor 41 in this embodiment includes a sensor signal input terminal 411 and a wire harness connector 42. The sensor assembly 4 also includes an external wiring harness 32. The sensor signal input terminal 411 is inserted into the mounting part 5. The wire harness connector 42 is disposed at the end of the sensor 41 away from the sensor signal input terminal 411. One end of the external wiring harness 32 is connected to the wire harness connector 42, and the other end is connected to the motor signal output terminal 31 of the caliper motor 3.

[0046] Optionally, the braking assembly with speed monitoring device of this invention further includes a fastener 6, and the mounting part 5 is detachably connected to the caliper assembly 2 via the fastener 6, facilitating the replacement of the sensor assembly 4. In other embodiments, the mounting part 5 may also be fixedly connected to the caliper assembly 2 by at least one of welding, snap-fitting, and bonding.

[0047] Please combine Figure 7 Specifically, the mounting part 5 and the caliper assembly 2 are respectively provided with a first mounting hole 53 and a second mounting hole 211c. The fastener 6 passes through the first mounting hole 53 and the second mounting hole 211c in sequence to fix the mounting part 5 to the caliper assembly 2. In this example, the edge of the caliper assembly 2 is provided with a mounting ear 211. The mounting ear 211 is preferably provided on the caliper bracket 21. It can be understood that the mounting ear 211 can also be provided on the first housing 33 of the caliper motor 3. The mounting part 5 and the mounting ear 211 are respectively provided with a first mounting surface 52 and a second mounting surface 211a. The first mounting surface 52 and the second mounting surface 211a abut against each other under the action of the fastener 6. Optionally, the mounting ear 211 recesses from its surface near the mounting portion 5 to form a groove 211b, a second mounting surface 211a is formed at the bottom of the groove 211b, and the sidewall of the groove 211b is generally U-shaped, the shape of which matches the shape of the outer surface of the mounting portion 5 near the caliper assembly 2, for accommodating the side of the mounting portion 5 near the caliper assembly 2, and since the sidewall of the groove 211b is generally U-shaped, this shape can prevent the mounting portion 5 from rotating relative to the caliper assembly 2.

[0048] Optionally, the mounting portion 5 extends from its surface away from the first mounting surface 52 to form an annular mounting boss 54. The mounting boss 54 is used to abut against the fastener 6 to improve connection stability. Optionally, a reinforcing rib 55 is provided between the mounting boss 54 and the wire harness connector 42 to improve the strength of the mounting portion 5.

[0049] As described above, the braking assembly with speed monitoring device of this utility model has the follower 11 mounted on the brake disc 1 and the sensor assembly 4 mounted on the caliper assembly 2. Therefore, the relative positions of the follower 11 and the brake disc 1, as well as the relative positions of the sensor assembly 4 and the caliper assembly 2, can be guaranteed, making it less likely for the positions of the follower 11 and the sensor assembly 4 to shift. Thus, the detection accuracy can be guaranteed. Furthermore, the follower 11 is located in the middle of the brake disc 1, which can prevent the follower 11 from being contaminated by dirt thrown by centrifugal force, and avoid the detection accuracy being affected by the contamination of the follower 11. In addition, since the sensor assembly 4 is mounted on the caliper assembly 2, its wiring can be integrated with the wiring of the caliper motor 3, shortening the wiring length and avoiding wiring crossing and entanglement.

[0050] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A braking assembly with a speed monitoring device, characterized in that: The device includes a brake disc (1), a caliper assembly (2), a sensor assembly (4), and a mounting part (5). The brake disc (1) and the caliper assembly (2) cooperate for vehicle braking. The brake disc (1) is provided with a follower (11). The sensor assembly (4) is fixed to the caliper assembly (2) through the mounting part (5) and is arranged opposite to the follower (11) for detecting the rotational speed of the brake disc (1).

2. The braking assembly with speed monitoring device according to claim 1, characterized in that: The follower (11) is a detection tooth or magnetic coding strip provided on the surface of the brake disc (1).

3. The braking assembly with speed monitoring device according to claim 2, characterized in that: The detection teeth are integrally formed in the middle of the brake disc (1).

4. The braking assembly with speed monitoring device according to claim 1, characterized in that: The caliper assembly (2) is integrally formed in the mounting part (5), and the sensor assembly (4) includes a sensor (41), one end of which is fixedly embedded in the mounting part (5).

5. The braking assembly with speed monitoring device according to claim 4, characterized in that: The caliper assembly (2) includes a caliper motor (3), which includes a first housing (33) near the brake disc (1) and a second housing (34) away from the brake disc (1). The mounting part (5) is integrally formed on the first housing (33), and the mounting part (5) has a through hole, in which the sensor (41) is embedded.

6. The braking assembly with speed monitoring device according to claim 5, characterized in that: The sensor (41) is provided with a sensor signal input terminal (411) and a sensor signal output terminal. The caliper motor (3) includes a motor signal input terminal and a motor signal output terminal (31). The sensor signal input terminal (411) is arranged opposite to the follower (11). The sensor signal output terminal and the motor signal output terminal (31) are integrated together.

7. The braking assembly with speed monitoring device according to claim 1, characterized in that: The caliper assembly (2) is provided with a mounting ear (211), the mounting part (5) is fixed on the mounting ear (211), and the sensor (41) is fixedly connected to the caliper assembly (2) through the mounting part (5) and the mounting ear (211).

8. The braking assembly with speed monitoring device according to claim 7, characterized in that: It also includes a fastener (6), the mounting part (5) being fixed to the mounting ear (211) by the fastener (6).

9. The braking assembly with speed monitoring device according to claim 7, characterized in that: The sensor assembly (4) includes a sensor (41), a wire harness connector (42), and an external wiring harness (32). The sensor (41) is provided with a sensor signal input terminal (411), which is inserted into the mounting part (5). The wire harness connector (42) is opposite to the sensor signal input terminal (411). The external wiring harness (32) is inserted into the wire harness connector (42). The caliper assembly (2) includes a caliper motor (3). The external wiring harness (32) is integrated with the motor signal output terminal (31) of the caliper motor (3).

10. A vehicle, characterized in that: The braking assembly with speed monitoring device as described in any one of claims 1 to 9.

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