Brake motor rotation angle detection mechanism and vehicle

Abstract

The utility model provides a brake motor rotation angle detection mechanism and a vehicle, the brake motor rotation angle detection mechanism comprises an angle sensor and a heat insulation member arranged on one side of a brake caliper, and a magnetic member arranged on the end portion of an output shaft of a brake motor; the angle sensor is separated from the brake caliper through the heat insulation piece, an open hole is formed in the middle of the heat insulation piece, and an induction assembly in the angle sensor is arranged right opposite to the magnetic piece through the open hole. The brake motor rotation angle detection mechanism is simple and reliable in structure, convenient to use, high in mechanism compactness, beneficial to integration and cost reduction design, capable of avoiding temperature drift of the angle sensor so as to ensure output precision of the sensor, beneficial to improvement of reliability and economical efficiency of a brake system and suitable for popularization and application. Therefore, the quality and the market competitiveness of the whole vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromechanical braking, in particular to a braking motor rotation angle detection mechanism. At the same time, the utility model also relates to a vehicle provided with the braking motor rotation angle detection mechanism. Background Technique

[0002] The braking system is a crucial system related to the safety performance of automobiles, and its performance level will directly affect the driving safety performance of the whole vehicle. The traditional braking system usually mainly consists of a brake pedal, a vacuum booster, a master cylinder, an ESC (Electronic Vehicle Stability Control System) or an ABS (Anti-lock Braking System), a wheel cylinder and its corresponding pipelines. The whole system is relatively complex and is at a disadvantage in terms of volume, mass and integration.

[0003] Moreover, the vacuum degree of the vacuum booster comes from the automobile engine. With the gradual popularization of electric vehicles, the source of vacuum has become a problem. At present, most electric vehicles adopt the method of adding a vacuum pump to provide the vacuum degree. However, this solution is only a temporary solution. Adding a vacuum pump not only occupies the limited front cabin space of the vehicle, but also increases the mass and failure risk of the braking system, which runs counter to the requirements of vehicle lightweight and safety. Therefore, the electromechanical braking system with fast response and powerful functions is attracting more and more attention.

[0004] The electromechanical braking system usually consists of a braking motor, a brake caliper, a pedal simulator, a transmission sub-assembly and other components. The electromechanical braking system has a simple structure and can achieve precise control of the braking pressure at each wheel end. In addition to being able to realize functions such as anti-lock braking control, drive slip control, electronic brake force distribution control and electronic stability control of the traditional braking system, it can also realize a series of functions such as emergency braking assistance, braking pitch control and hill start assistance through software. More importantly, since the electromechanical braking system is a decoupled system, this system can be perfectly combined with the regenerative braking force, and with the help of the pedal simulator, the maximum recovery of braking energy can be realized without changing the original braking feeling.

[0005] Secondly, different from the source mode of the traditional vacuum booster, the boost of the electromechanical braking system comes from the output torque of the braking motor being converted into an axial thrust through the transmission mechanism. Specifically, for the ECU (Electronic Controller) to control a three-phase brushless motor, a motor angle sensor is required to provide the motor rotation angle position signal. That is, the braking motor provides power to drive the brake caliper to perform a braking action, and the motor angle sensor is used to monitor the rotation angle or position of the motor to ensure precise control of braking.

[0006] Currently, most commonly used motor angle sensors adopt magnetoresistive angle sensors. However, due to the relatively large axial dimension of traditional magnetoresistive sensors, and components such as brake motors and brake calipers being arranged at the wheel end of the vehicle, there are strict requirements for the boundary dimensions of their components. This leads to problems in the existing electromechanical braking system, such as inconvenient arrangement of the motor and angle sensor at the wheel end, high integration cost, and difficulty in ensuring the positioning accuracy of the sensor, which is not conducive to improving the reliability and economy of the braking system. Summary of the Invention

[0007] In view of this, the present invention aims to provide a braking motor angle detection mechanism, which can help improve the reliability and economy of the braking system.

[0008] To achieve the above object, the technical solution of the present invention is realized as follows:

[0009] A braking motor angle detection mechanism includes an angle sensor and a heat insulation member provided on one side of the brake caliper, and a magnetic member provided at the end of the output shaft of the braking motor;

[0010] The heat insulation member separates the angle sensor from the brake caliper, and an opening is provided in the middle of the heat insulation member. The induction component in the angle sensor is arranged opposite to the magnetic member through the opening.

[0011] Further, the angle sensor is connected to the heat insulation member, and the heat insulation member is connected to the brake caliper.

[0012] Further, a first sealing ring is provided between the angle sensor and the heat insulation member, and / or a second sealing ring is provided between the heat insulation member and the brake caliper.

[0013] Further, a ring-shaped protrusion inserted into the opening is provided on the angle sensor.

[0014] Further, a positioning component is provided between the heat insulation member and the brake caliper; the positioning component includes a positioning pin provided on one of the heat insulation member and the brake caliper, and a positioning hole provided on the other of the heat insulation member and the brake caliper, and the positioning pin is inserted into the positioning hole.

[0015] Further, the heat insulation member is made of a metal plate.

[0016] Further, a sensor plug interface connected to an external controller is provided on the housing of the angle sensor; and / or a motor plug interface connected to an external controller and a motor female terminal interface connected to the braking motor are provided on the housing of the angle sensor, and the motor female terminal interface is connected to the motor plug interface.

[0017] Further, the sensor socket, the motor socket, and the female motor interface are integrally injection-molded on the housing of the angle sensor.

[0018] Further, one end of the motor installation cavity in the brake caliper is blocked by the angle sensor and the heat insulation member, and the brake motor is arranged in the motor installation cavity.

[0019] Compared with the prior art, the present utility model has the following advantages:

[0020] For the brake motor rotation angle detection mechanism of the present utility model, by arranging both the brake motor and the angle sensor on the brake caliper, the structure can be simple and reliable, and it is convenient to use, which is beneficial to improving the compactness of the mechanism, realizing integration and cost reduction design. At the same time, the setting of the heat insulation member can also prevent the temperature of the brake motor from being too high and transferring to the position of the angle sensor, causing the angle sensor to have temperature drift and poor output accuracy problems, thereby improving the positioning accuracy, and thus being beneficial to improving the reliability and economy of the braking system.

[0021] In addition, the angle sensor is connected to the heat insulation member, and the heat insulation member is connected to the brake caliper. The structure is simple and the assembly is convenient, which is beneficial to cost reduction. By setting the first sealing ring and the second sealing ring, it is beneficial to ensure the sealing performance between the angle sensor, the heat insulation member and the brake caliper. The setting of the annular protrusion is beneficial to the positioning and installation of the angle sensor and the heat insulation member, and improves the assembly convenience. Using the positioning component can improve the disassembly and assembly convenience of the heat insulation member and the brake caliper, which is beneficial to cost reduction.

[0022] In addition, the heat insulation member is made of a metal plate, which can not only insulate heat, but also be beneficial to improving the overall structural strength of the mechanism, and has a good heat dissipation effect, which can further improve the effect of preventing the temperature of the brake motor from being too high and transferring to the position of the angle sensor, reduce the risk of temperature drift of the angle sensor, and ensure the output accuracy. The sensor socket, the motor socket, and the female motor interface are integrally injection-molded on the housing of the angle sensor, which is beneficial to ensuring the molding quality of the housing of the angle sensor, saving the layout space, improving the integration degree of the mechanism, and being beneficial to ensuring the structural stability of each interface. The brake motor is arranged in the motor installation cavity, which is beneficial to improving the integration degree of the mechanism.

[0023] Another object of the present utility model is to propose a vehicle, in which the above-mentioned brake motor rotation angle detection mechanism is provided.

[0024] The above-mentioned brake motor rotation angle detection mechanism is provided in the vehicle of the present utility model, which can ensure the positioning accuracy of the angle sensor, improve the reliability of the braking system, and is also beneficial to realizing the integration and cost reduction design of the electro-mechanical braking system, thereby being beneficial to improving the market competitiveness of the whole vehicle. Description of the Drawings

[0025] The attached drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the attached drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the braking motor rotation angle detection mechanism according to the embodiment of the present utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the angle sensor and the heat insulation member according to the embodiment of the present utility model;

[0028] Figure 3 It is a schematic diagram of the structure of the angle sensor according to the embodiment of the present utility model;

[0029] Figure 4 It is a schematic diagram of the structure when the braking motor and the brake caliper are assembled according to the embodiment of the present utility model;

[0030] Description of the reference numerals:

[0031] 1. Brake caliper; 11. Connecting flange; 111. Positioning hole;

[0032] 2. Braking motor; 21. Output shaft; 22. Motor male end plug;

[0033] 3. Angle sensor; 31. Housing; 311. Ring-shaped protrusion; 312. Sensor interface; 313. Motor interface; 314. Motor female end interface; 315. Reinforcing rib; 32. PCB board; 33. Sensor chip;

[0034] 4. Heat insulation member; 41. Opening; 42. Positioning pin;

[0035] 5. Magnetic part; 6. First sealing ring; 7. Second sealing ring; 8. Fastener. Detailed implementation manners

[0036] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0037] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are presented in order to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, the detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0038] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" 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 components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0040] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0041] Embodiment 1

[0042] This embodiment relates to a braking motor corner detection mechanism, which can solve the problems in the traditional technology that the braking motor 2 and the angle sensor 3 are inconvenient to arrange at the wheel end of the vehicle, the integration cost is high, and the output accuracy of the sensor is poor, and is beneficial to improving the reliability and economy of the braking system.

[0043] In terms of the overall structure, as Figures 1 to 4 shown, the braking motor corner detection mechanism of this embodiment includes, axially on the braking motor 2, an angle sensor 3 and a heat insulation member 4 provided on one side of the brake caliper 1, and a magnetic member 5 provided at the end of the output shaft 21 of the braking motor 2. Moreover, the heat insulation member 4 isolates the angle sensor 3 from the brake caliper 1, and a hollow opening 41 is provided in the middle of the heat insulation member 4, and the induction component in the angle sensor 3 is arranged opposite to the magnetic member 5 through the opening 41.

[0044] At this time, with the above settings, by arranging both the braking motor 2 and the angle sensor 3 on the brake caliper, the structure can be simple and reliable, and the use is convenient, which is beneficial to improving the compactness of the mechanism, realizing integration and cost reduction design. At the same time, the setting of the heat insulation member 4 can also avoid the problem that when the braking motor 2 generates high temperature under high-intensity working conditions, the high temperature is transmitted to the position of the angle sensor 3, causing the angle sensor 3 to have temperature drift and poor output accuracy, thereby improving the positioning accuracy, and thus being beneficial to improving the reliability and economy of the braking system.

[0045] It is worth mentioning that the electro-mechanical braking system (EMB) is an advanced automotive braking technology that combines electronics and mechanical technologies, aiming to provide a safer, more efficient, and more environmentally friendly braking solution. The EMB system achieves precise control of the vehicle's braking system through an electronic control unit (ECU). Sensors sense parameters such as the braking pedal force and vehicle speed, transmit the data to the ECU, and the latter adjusts the braking force according to the real-time information. At the same time, the braking motor 2, as an actuator, performs braking actions through the brake caliper 1 to achieve rapid response and adjustment of the braking force.

[0046] Based on the above overall introduction, specifically, in this embodiment, when implemented, the braking motor 2 is preferably a brushless motor to reduce noise while having better running stability and braking efficiency. The magnetic part 5 of this embodiment is preferably an induction magnet well-known to those skilled in the art, so that the angle sensor 3 can sense it.

[0047] At the same time, the angle sensor 3 of this embodiment includes a housing 31, and the induction component includes a PCB board 32 provided on the side of the housing 31 facing the braking motor 2, and a sensor chip 33 provided on the PCB board 32. The sensor chip 33 is arranged opposite to the magnetic part 5 through an opening 41 and senses the magnetic part 5. For the related structural parts not mentioned in the braking motor rotation angle detection mechanism of this embodiment, reference can be made to the various structures in the electro-mechanical braking system well-known to those skilled in the art. For example, the various structures not mentioned in the angle sensor 3 can refer to common magnetoresistive angle sensors, etc.

[0048] In this embodiment, as a preferred implementation form, the angle sensor 3 is connected to the heat insulation part 4, and the heat insulation part 4 is connected to the brake caliper 1. In this way, the structure can be simple, the assembly is convenient, and it is beneficial to reduce costs.

[0049] Here, the connection between the angle sensor 3 and the heat insulation part 4 and the connection between the heat insulation part 4 and the brake caliper 1 are preferably detachable connections. Specifically, screw connections can be preferably used. For example Figure 1 as shown in, the angle sensor 3 and the heat insulation part 4 are screwed together through a fastener 8, and the heat insulation part 4 and the brake caliper 1 are screwed together through a fastener 8.

[0050] Combined Figure 1 and Figure 2 As shown, in this embodiment, as a preferred implementation form, a first sealing ring 6 is provided between the angle sensor 3 and the heat insulation part 4, and a second sealing ring 7 is provided between the heat insulation part 4 and the brake caliper 1. The main advantage of such a setting is that it can help ensure the sealing performance between the angle sensor 3, the heat insulation part 4, and the brake caliper 1.

[0051] Of course, when necessary in this embodiment, a sealing ring can be added to improve the overall sealing performance of the mechanism, or only the first sealing ring 6 or the second sealing ring 7 can be provided according to cost and structural sealing requirements, and each sealing ring can adopt the sealing ring products well-known to those skilled in the art.

[0052] Meanwhile, in this embodiment, as a preferred implementation form, continue to refer to Figure 2 As shown, a ring-shaped protrusion 311 is provided on the angle sensor 3 and inserted into the insertion opening 41, which is beneficial to the positioning and installation of the angle sensor 3 and the heat insulation member 4, and improves the assembly convenience. Specifically, the ring-shaped protrusion 311 is provided on the side of the housing 31 facing the brake motor 2, and the sensing assembly is provided in the ring-shaped protrusion 311 to protect the sensing assembly to a certain extent.

[0053] In addition, in this embodiment, as a preferred implementation form, refer to Figure 3 and Figure 4 As shown, a positioning assembly is provided between the heat insulation member 4 and the brake caliper 1. In a specific structure, the positioning assembly includes a positioning pin 42 provided on one of the heat insulation member 4 and the brake caliper 1, and a positioning hole 111 provided on the other of the heat insulation member 4 and the brake caliper 1, and the positioning pin 42 is inserted into the positioning hole 111. Thereby, the disassembly and assembly convenience of the heat insulation member 4 and the brake caliper 1 can be improved, which is beneficial to cost reduction.

[0054] In this embodiment, as an exemplary structure, a plurality of positioning pins 42 are spacedly provided on the heat insulation member 4, a plurality of positioning holes 111 are provided on the connecting flange 11 of the brake caliper 1, and each positioning hole 111 is arranged in one-to-one correspondence with each positioning pin 42. Among them, the connecting flange 11 is preferably integrally formed on the side of the brake caliper 1 close to the heat insulation member 4, and the connecting flange 11 is arranged along the circumferential direction of the brake caliper 1 to facilitate the assembly of the brake caliper 1 and the heat insulation member 4.

[0055] Moreover, for the convenience of assembling each positioning pin 42 on the heat insulation member 4, press-fit holes corresponding to each positioning pin 42 can be specifically provided on the heat insulation member 4, and each positioning pin 42 is press-fitted into the corresponding press-fit hole.

[0056] Furthermore, in this embodiment, as a preferred implementation form, the heat insulation member 4 is made of a metal plate. The main advantage of this setting is that it can improve the overall structural strength of the mechanism while providing heat insulation, and has a good heat dissipation effect, which can further enhance the effect of preventing the temperature of the brake motor 2 from being too high and transferring to the position of the angle sensor 3, reduce the risk of temperature drift of the angle sensor 3, and ensure the output accuracy.

[0057] In addition, in this embodiment, as a preferred implementation form, still as Figure 3As shown in the figure, a sensor jack 312 connected to an external controller is provided on the housing 31 of the angle sensor 3. At the same time, a motor jack 313 connected to the external controller is provided on the housing 31 of the angle sensor 3, and a motor female terminal interface 314 connected to the braking motor 2, and the motor female terminal interface 314 is connected to the motor jack 313.

[0058] In specific implementation, the sensor jack 312 of this embodiment is connected to the PCB board 32 through an electrical connector provided in the housing 31, so that the sensor jack 312 is connected to the sensor chip 33. At the same time, the motor jack 313 can also be connected to the motor female terminal interface 314 through another electrical connector provided in the housing 31. Each of the electrical connectors here can be, for example, a conductive terminal or a conductive copper bar.

[0059] Moreover, it should be noted that the distance between the induction component of this embodiment and the motor female terminal interface 314 is set. As a preferred setting form, the PCB board 32 in the induction component is preferably set in a disc shape, and the motor female terminal interfaces 314 are preferably arranged in a plurality at intervals around the PCB board 32.

[0060] In this embodiment, as a preferred implementation form, the sensor jack 312, the motor jack 313, and the motor female terminal interface 314 are all integrally injection-molded on the housing 31 of the angle sensor 3. Such a setting is beneficial to ensuring the molding quality of the housing 31 of the angle sensor 3, saving the layout space, improving the mechanism integration degree, and being beneficial to ensuring the structural stability of each interface.

[0061] Of course, to improve the integration degree and ensure the electrical connection reliability, the above electrical connectors are also preferably integrally injection-molded on the housing 31. At the same time, the sensor jack 312 and the motor jack 313 are preferably arranged on the periphery of the housing 31 to reduce the axial dimension of the angle sensor 3 and the overall mechanism, which is beneficial to its spatial layout at the wheel end. And to ensure the connection strength of the sensor jack 312 and the motor jack 313, reinforcing ribs 315 can also be integrally formed between the sensor jack 312 and the housing 31, and between the motor jack 313 and the housing 31.

[0062] Furthermore, it is worth mentioning that the braking motor 2 of this embodiment is provided with motor male plugs 22 arranged in one-to-one correspondence with the motor female terminal interfaces 314. In specific implementation, each motor female terminal interface 314 is respectively plugged and connected to the corresponding motor male plug 22. The motor male plug 22 can be made of, for example, PIN pins well-known to those skilled in the art.

[0063] In addition, in this embodiment, as a preferred implementation form, one end of the motor installation cavity in the brake caliper 1 is blocked by the angle sensor 3 and the heat insulation member 4, and the brake motor 2 is arranged in the motor installation cavity, which is beneficial to improving the mechanism integration degree.

[0064] In this embodiment, after the angle sensor 3 is assembled, each motor male terminal plug 22 and the corresponding motor female terminal interface 314 are directly plugged and matched. The motor female terminal interface 314 is connected to the motor plug interface 313 through the electrical connection member in the housing 31, and is connected to the controller (such as ECU) through the motor plug interface 313, so as to achieve the control of the brake motor 2 by the ECU.

[0065] At the same time, the angle sensor 3 uses the magnetoresistive principle to measure the magnetic field change, so as to determine the rotation angle of the brake motor 2. The brake motor 2 is energized and rotated to drive the induction magnet to rotate, and the surrounding magnetic field will change with the rotation angle of the induction magnet. Since the magnetic field sensed by the sensor chip 33 has changed, and this change is related to the rotation angles of the induction magnet and the brake motor 2, the sensor chip 33 will send out different signals according to the magnetic field change, and transmit this signal to the ECU through the PCB board, the electrical connection member and the sensor plug interface 312 for signal processing, so as to obtain the rotation angle position of the brake motor 2, and then perform the optimal control on the brake motor 2.

[0066] The brake motor rotation angle detection mechanism of this embodiment can make the structure simple and reliable, easy to use, beneficial to improving the mechanism compactness, realizing integration and cost reduction design. At the same time, it can also avoid the problems of temperature drift and poor output accuracy of the angle sensor 3, beneficial to improving the positioning accuracy, and thus beneficial to improving the reliability and economy of the brake system. At the same time, it can be understood that the brake motor rotation angle detection mechanism can greatly optimize the overall installation process, realize the assembly installation without using complex process means such as thermal riveting and buckles, and save the overall cost of the wire-controlled hydraulic brake system.

[0067] Embodiment 2

[0068] This embodiment relates to a vehicle, and the brake motor rotation angle detection mechanism in Embodiment 1 is provided in this vehicle.

[0069] The vehicle of this embodiment, by setting the brake motor rotation angle detection mechanism in Embodiment 1, can have better structural strength and higher output accuracy of the angle sensor 3, can improve the reliability of the brake system, and has high integration degree and low manufacturing cost, thus being beneficial to improving the overall vehicle quality and market competitiveness.

[0070] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A brake motor angle detection mechanism, characterized in that: It comprises an angle sensor (3) and a heat insulating member (4) arranged on one side of a brake caliper (1), and a magnetic member (5) arranged on the end of an output shaft (21) of the brake motor (2); The heat insulating member (4) isolates the angle sensor (3) from the brake caliper (1), and an opening (41) is provided in the middle of the heat insulating member (4), and the inductive component in the angle sensor (3) is arranged opposite to the magnetic member (5) through the opening (41).

2. The brake motor rotation angle detection mechanism according to claim 1, characterized in that: The angle sensor (3) is connected to the heat insulating member (4), and the heat insulating member (4) is connected to the brake caliper (1).

3. The brake motor rotation angle detection mechanism according to claim 2, characterized in that: A first sealing ring (6) is provided between the angle sensor (3) and the heat insulating member (4), and / or a second sealing ring (7) is provided between the heat insulating member (4) and the brake caliper (1).

4. The brake motor rotation angle detection mechanism according to claim 2, characterized in that: The angle sensor (3) is provided with an annular protrusion (311) inserted into the opening (41).

5. The brake motor rotation angle detection mechanism according to claim 2, characterized in that: A positioning assembly is provided between the heat insulating member (4) and the brake caliper (1); The positioning assembly comprises a positioning pin (42) provided on one of the heat insulating member (4) and the brake caliper (1), and a positioning hole (111) provided on the other of the heat insulating member (4) and the brake caliper (1), wherein the positioning pin (42) is inserted into the positioning hole (111).

6. The brake motor rotation angle detection mechanism according to claim 1, characterized in that: The heat insulating member (4) is made of metal plate.

7. The brake motor rotation angle detection mechanism according to claim 1, characterized in that: The housing (31) of the angle sensor (3) is provided with a sensor plug interface (312) connected to an external controller; and / or, The housing (31) of the angle sensor (3) is provided with a motor plug interface (313) connected to an external controller, and a motor female end interface (314) connected to the brake motor (2), and the motor female end interface (314) is connected to the motor plug interface (313).

8. The brake motor rotation angle detection mechanism according to claim 7, characterized in that: The sensor plug interface (312), the motor plug interface (313) and the motor female end interface (314) are all integrally injection-molded on the housing (31) of the angle sensor (3).

9. The brake motor rotation angle detection mechanism according to any one of claims 1 to 8, characterized in that: One end of the motor installation cavity in the brake caliper (1) is blocked by the angle sensor (3) and the heat insulation component (4), and the brake motor (2) is arranged in the motor installation cavity.

10. A vehicle, characterized in that: The vehicle is provided with a brake motor rotation angle detection mechanism according to any one of claims 1 to 9.

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