Motor position sensor and electric power-assisted braking system

Abstract

The invention discloses a motor position sensor and an electric power-assisted braking system, and relates to the technical field of automobile chassis braking. The motor position sensor comprises an induction seat, a guiding section and a wiring section, the guiding section and the wiring section are sequentially arranged on one side of the induction seat, the induction seat penetrates through the valve block through the guiding section, the induction seat and the motor are arranged on the same side to be used for detecting the rotating angle of the motor, and the wiring section is matched with a binding post on the electric control unit in an inserted mode through a terminal. The stability of signal transmission can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile chassis braking, and in particular to a motor position sensor and an electric power-assisted braking system. Background Art

[0002] In an electric power-assisted braking system, when the driver steps on the brake pedal, the braking demand will be transmitted to the electronic control unit through the pedal displacement sensor. After receiving the braking signal, the electronic control unit will convert and output the analyzed braking signal to the drive motor, thereby driving the motor to rotate to meet the braking demand. However, in order to accurately achieve the braking demand, a motor position sensor is also required to detect the angle of motor rotation, thereby controlling the rotation of the drive motor.

[0003] Currently, the motor position sensor in existing electric power-assisted braking systems is primarily fixed to the rear end cover of the drive motor. The entire motor position sensor passes through the valve block and connects to the electronic control unit via a contact spring for signal transmission and communication. Due to the helical structure of the contact spring, the contact area with the motor position sensor is small. This unstable contact can easily lead to signal loss when the vehicle is subjected to bumps and vibrations, resulting in failure of the electric power steering system. Summary of the Invention

[0004] The purpose of this application is to provide a motor position sensor and an electric power-assisted braking system, which can improve the stability of signal transmission.

[0005] The embodiment of the present application is implemented as follows: According to one aspect of an embodiment of the present application, a motor position sensor is provided, comprising a sensing seat and a guide section and a wiring section sequentially arranged on one side of the sensing seat, wherein the guide section passes through the valve block, the sensing seat is arranged on the same side as the motor for detecting the rotation angle of the motor, and the wiring section is plug-in-matched with the terminal on the electronic control unit through a terminal.

[0006] Optionally, as an implementable method, the wiring segment includes a wiring housing and a wiring terminal inserted into the wiring housing, the wiring terminal includes a sleeve and an elastic arm arranged in the sleeve, and the elastic arm and the inner wall of the sleeve cooperate to clamp the terminal on the electronic control unit.

[0007] Optionally, as an implementable manner, a bell mouth connected to the sleeve is provided on the wiring housing, and the bell mouth is used to guide the wiring posts on the electronic control unit to be plugged into and fitted with the wiring terminals.

[0008] Optionally, as an implementable manner, the sensing base includes a mounting block and a circuit board arranged at the bottom of the mounting block, a connecting wire electrically connected to the circuit board is passed through the mounting block, and is electrically connected to the guide section through the connecting wire.

[0009] Optionally, as an implementable method, the guide section includes a left shell, a right shell and a wire, the wire is accommodated in a tubular chamber formed by the left shell and the right shell, both ends of the wire are electrically connected to the connecting wire and the terminal respectively, and a protective groove is provided on the left shell and the right shell, and the wire is fixed by limiting the protective groove.

[0010] Optionally, as an implementable manner, a first connecting section is provided on the mounting block and a second connecting section is provided on the wiring housing, and the first connecting section and the second connecting section are placed at both ends of the tubular chamber formed by the left housing and the right housing.

[0011] Optionally, as an implementable method, a first card slot is provided on the first connecting section, a second card slot is provided on the second connecting section, first card protrusions for respectively clamping the first card slot and the second card slot are provided at both ends of the left shell, and second card protrusions for respectively clamping the first card slot and the second card slot are provided at both ends of the right shell.

[0012] Optionally, as an implementable manner, a first buckle is provided on the inner side of the left shell, and a second buckle that is engaged with the first buckle is provided on the inner side of the right shell, and the left shell and the right shell are connected by the first buckle and the second buckle.

[0013] Another aspect of an embodiment of the present application provides an electric power-assisted braking system, comprising a motor, a valve block, an electronic control unit, and a motor position sensor as described above, wherein the motor and the electronic control unit are arranged on both sides of the valve block, the induction seat of the motor position sensor is installed on the valve block and is magnetically inductively connected to the motor, the guide section of the motor position sensor passes through the valve block, and the wiring section of the motor position sensor is plug-in-matched with the wiring post on the electronic control unit through terminals.

[0014] Optionally, as an implementable manner, positioning protrusions are provided on both sides of the sensing base of the motor position sensor, and positioning grooves for accommodating the positioning protrusions are provided on the valve block, and the positioning protrusions are interference fit with the positioning grooves.

[0015] The beneficial effects of the embodiments of the present application include: The motor position sensor and the electric power assisted brake system provided by the application comprise an induction seat, a guide section and a wiring section arranged in sequence on one side of the induction seat, the guide section penetrates the valve block, the induction seat is arranged on the same side of the motor for detecting the rotation angle of the motor, and the wiring section is plugged and matched with the terminal of the wiring post on the electric control unit. The wiring section of the motor position sensor is plugged and matched with the terminal of the wiring post of the electric control unit, and compared with the traditional contact spring connection, the terminal plug has a larger contact area and a more compact connection structure. Under the working condition of whole vehicle bumping and vibration, the connection mode of the terminal plug can effectively avoid the signal loss problem caused by unstable contact, greatly improves the stability of signal transmission, ensures that the electric power assisted brake system can continuously and accurately receive the motor position information, and thus realizes stable and reliable electric power assisted function. The design that the guide section of the motor position sensor penetrates the valve block makes the installation process of the sensor more simple and fast, reduces the installation time and difficulty. At the same time, when the sensor needs to be maintained or replaced due to failure, the connection mode of the terminal plug is convenient for disassembly and installation, reduces the maintenance cost and maintenance time, and improves the repair efficiency. The stable signal transmission, convenient installation and maintenance and accurate detection jointly make the reliability of the whole electric power assisted brake system be significantly enhanced. The probability of system failure caused by signal transmission problem is reduced, the service life of the brake system is prolonged, and the safety and stability during vehicle driving are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 The structural schematic diagram of the electric power assisted brake system provided by the embodiments of the application is shown in the figure. Figure 2 The structural schematic diagram of the motor position sensor in the electric power assisted brake system provided by the embodiments of the application is shown in the figure. Figure 3 The structural schematic diagram of the motor position sensor in the electric power assisted brake system provided by the embodiments of the application is shown in the figure.

[0018] Icons: 1000-Electric power-assisted braking system; 100-Motor position sensor; 110-Induction seat; 111-Mounting block; 1111-First slot; 112-Circuit board; 113-Connecting wire; 120-Guide section; 121-Left housing; 122-Right housing; 123-Wire; 130-Wiring section; 131-Wiring housing; 1311-Bell mouth; 1312-Second slot; 132-Wiring terminal; 200-Motor; 300-Valve block; 400-Electronic control unit. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," "third," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0022] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0023] Please refer to Figure 1 、 Figure 2 and Figure 3This embodiment provides a motor position sensor 100, including a sensing base 110 and a guide section 120 and a wiring section 130 sequentially arranged on one side of the sensing base 110. The guide section 120 passes through the valve block 300. The sensing base 110 and the motor 200 are arranged on the same side for detecting the rotation angle of the motor 200. The wiring section 130 is plugged into and matched with the terminal on the electronic control unit 400 through a terminal.

[0024] Specifically, when the driver steps on the brake pedal, the brake signal is transmitted to the electronic control unit 400 through the pedal displacement sensor. The electronic control unit 400 analyzes the signal and outputs it to the drive motor 200. At this time, the sensing base 110 of the motor position sensor 100 detects the rotation angle of the motor 200 in real time, and connects the terminal of the wiring section 130 to the terminal of the electronic control unit 400 to stably transmit the detected signal to the electronic control unit 400, so that the electronic control unit 400 can accurately control the rotation of the drive motor 200 and realize a reliable brake assist function.

[0025] The motor position sensor 100 provided in the present application includes a sensing base 110 and a guide section 120 and a wiring section 130 sequentially arranged on one side of the sensing base 110. The guide section 120 passes through the valve block 300. The sensing base 110 and the motor 200 are arranged on the same side for detecting the rotation angle of the motor 200. The wiring section 130 is mated with the terminal on the electronic control unit 400 through a terminal plug-in connection. Compared with the traditional contact spring connection, the terminal plug-in connection has a larger contact area and a tighter connection structure. Under the working conditions of bumpy vibration of the whole vehicle, the terminal plug-in connection method can effectively avoid the problem of signal loss due to unstable contact, greatly improve the stability of signal transmission, and ensure that the electric power-assisted braking system 1000 can continuously and accurately receive the position information of the motor 200, thereby realizing a stable and reliable electric power-assisted function. The design of the guide section 120 of the motor position sensor 100 running through the valve block 300 makes the installation process of the sensor simpler and faster, reducing the installation time and difficulty. At the same time, when the sensor fails and needs maintenance or replacement, the terminal plug-in connection method facilitates disassembly and installation, reducing maintenance costs and maintenance time, and improving maintenance efficiency. The present application significantly enhances the reliability of the entire electric power-assisted braking system 1000 through stable signal transmission, convenient installation and maintenance, and accurate detection. It reduces the probability of system failure due to signal transmission problems, extends the service life of the braking system, and improves the safety and stability of the vehicle during driving.

[0026] In a possible embodiment of the present application, Figure 1 、 Figure 2 and Figure 3As shown, the connecting segment 130 includes a connecting shell 131 and a connecting terminal 132 arranged in the connecting shell 131, the connecting terminal 132 includes a sleeve and an elastic arm arranged in the sleeve, and the elastic arm and the inner wall of the sleeve cooperatively clamp the connecting post on the electronic control unit 400.

[0027] Specifically, the elastic arm and the inner wall of the sleeve cooperatively clamp the connecting post on the electronic control unit 400, realizing reliable electrical connection between the two. This structural design can adapt to connecting posts of different specifications through elastic deformation of the elastic arm, and can still maintain good clamping force when subjected to external forces such as vibration, ensuring the continuity of signal transmission.

[0028] The elastic arm and the inner wall of the sleeve cooperatively clamp the connecting post, which can provide greater friction and clamping force compared to the ordinary plug-in method, effectively preventing the connecting terminal 132 from loosening and separating from the connecting post due to bumps and vibrations during vehicle driving, greatly enhancing the stability of the connection, thereby ensuring the reliability of signal transmission. The elastic property of the elastic arm enables the connecting terminal 132 to adapt to connecting posts of different sizes and shapes of the electronic control unit 400 within a certain range, without the need to specially design different connecting terminals 132 for connecting posts of different specifications, improving the universality and adaptability of the motor position sensor 100 and reducing production and maintenance costs. Stable connection reduces changes in contact resistance, avoids signal interference and loss caused by poor contact, and enables the signals detected by the motor position sensor 100 to be more accurately and stably transmitted to the electronic control unit 400, which helps the electronic control unit 400 more accurately control the driving motor 200 and improves the overall performance of the electric power-assisted braking system 1000.

[0029] In one feasible embodiment of the present application, as shown in Figure 1 , Figure 2 and Figure 3 , a horn mouth 1311 is arranged on the connecting shell 131 and communicates with the sleeve, and the connecting post on the electronic control unit 400 is guided to plug-in cooperate with the connecting terminal 132 through the horn mouth 1311.

[0030] Specifically, the bell mouth 1311 can guide the terminal on the electronic control unit 400 to be smoothly plugged into the terminal 132. During the installation process, the terminal can be more easily inserted into the sleeve along the inclined surface of the bell mouth 1311, which reduces the difficulty of installation and docking errors and improves installation efficiency. The guiding function of the bell mouth 1311 makes the plug-in process of the terminal and the terminal 132 smoother. Even in the case of limited installation space and inconvenient operation, the installer can quickly and accurately complete the wiring work, reducing the difficulty of installation, shortening the installation time, and improving production assembly efficiency. Because the bell mouth 1311 can guide the terminal to be inserted accurately, it avoids collision and scratching between the terminal and the terminal 132 due to blind docking, thereby reducing the risk of damage to the terminal and the terminal 132, extending the service life of the motor position sensor 100 and the related components of the electronic control unit 400, and reducing maintenance and replacement costs. The guiding function of the bell mouth 1311 ensures that the terminal can be accurately inserted into the appropriate position in the sleeve, ensuring good contact and stable clamping between the elastic arm and the terminal, further improving the accuracy and reliability of the connection and providing a guarantee for stable signal transmission.

[0031] In a possible embodiment of the present application, Figure 1 、 Figure 2 and Figure 3 As shown, the sensing base 110 includes a mounting block 111 and a circuit board 112 arranged at the bottom of the mounting block 111. A connecting wire 113 electrically connected to the circuit board 112 is passed through the mounting block 111 and is electrically connected to the guide section 120 through the connecting wire 113.

[0032] Specifically, the sensing base 110 is composed of a mounting block 111 and a circuit board 112 arranged at the bottom of the mounting block 111. A connecting wire 113 electrically connected to the circuit board 112 is passed through the mounting block 111, and an electrical connection is achieved with the guide section 120 through the connecting wire 113. The circuit board 112 is responsible for sensing the rotation angle of the motor 200 and converting it into an electrical signal. The mounting block 111 provides protection and installation support for the circuit board 112, and the connecting wire 113 serves as a bridge for signal transmission, ensuring that the signal detected by the sensing base 110 can be smoothly transmitted to the subsequent circuit. A mounting groove is provided at the bottom of the mounting block 111, and the circuit board 112 is installed in the mounting groove, and the mounting groove is covered by the bottom plate to ensure the circuit board 112.

[0033] The mounting block 111 wraps the circuit board 112 therein, which can effectively prevent the circuit board 112 from being damaged by external physical impact, dust, water vapor and other factors, protect the electronic components on the circuit board 112 from normal work, improve the reliability and service life of the inductive seat 110, and reduce the probability of sensor failure caused by damage to the circuit board 112. The reasonable layout of the connecting line 113 in the mounting block 111 enables the signal detected by the inductive seat 110 to be transmitted to the guide section 120 in the shortest and most stable path, reduces the loss and interference of the signal in the transmission process, improves the efficiency and accuracy of signal transmission, and provides a guarantee for the electric control unit 400 to obtain accurate motor 200 position information. This modular design divides the inductive seat 110 into two parts, the mounting block 111 and the circuit board 112, which facilitates separate processing and installation during production and assembly, improving production efficiency. When the sensor fails, it is also convenient to individually inspect and replace the mounting block 111 and the circuit board 112, reducing maintenance difficulty and cost.

[0034] In an embodiment of the present application, as shown in Figure 1 , Figure 2 and Figure 3 , the guide section 120 includes a left shell 121, a right shell 122 and a wire 123, the wire 123 is accommodated in a tubular cavity formed by the left shell 121 and the right shell 122, and the two ends of the wire 123 are electrically connected with the connecting line 113 and the terminal 132 respectively. The left shell 121 and the right shell 122 are both provided with a protection groove for limiting and fixing the wire 123.

[0035] The wire 123 is limited and fixed by the protection groove to prevent it from shaking and shifting in the tubular cavity, ensuring the stability of signal transmission. The tubular cavity provides physical protection for the wire 123, avoiding the wire 123 from being squeezed, rubbed and pulled by the outside world, prolonging the service life of the wire 123. At the same time, the limiting and fixing effect of the protection groove on the wire 123 further prevents the wire 123 from moving randomly in the cavity, reducing the signal transmission failure caused by damage or poor contact of the wire 123, and improving the reliability of the motor position sensor 100. The well-fixed wire 123 can ensure that the electrical signal will not be disturbed and lost during transmission due to the shaking and shifting of the wire 123, ensuring that the signal detected by the inductive seat 110 can be stably and accurately transmitted to the terminal 132, and then transmitted to the electric control unit 400, so that the electric control unit 400 can accurately control the driving motor 200 according to the accurate motor 200 position information. The split design of the left shell 121 and the right shell 122 facilitates placing the wire 123 in the appropriate position during installation, and then assembling. When the wire 123 fails, it is also convenient to disassemble the left and right shells 122 for inspection and replacement, reducing the difficulty of installation and maintenance and improving work efficiency.

[0036] In a possible embodiment of the present application, Figure 1 、 Figure 2 and Figure 3 As shown, a first connecting section is provided on the mounting block 111 and a second connecting section is provided on the wiring housing 131 . The first connecting section and the second connecting section are placed at both ends of the tubular cavity formed by the left housing 121 and the right housing 122 .

[0037] Furthermore, the first connecting section is provided with a first latching slot 1111, the second connecting section is provided with a second latching slot 1312, the left housing 121 is provided with first latching protrusions at both ends that respectively latch onto the first latching slot 1111 and the second latching slot 1312, and the right housing 122 is provided with second latching protrusions at both ends that respectively latch onto the first latching slot 1111 and the second latching slot 1312. Through the cooperation of these latching slots and latching protrusions, a secure connection is achieved between the sensing base 110, the guide section 120, and the wiring section 130.

[0038] The present application can provide greater connection strength and friction through the clamping cooperation between the clamping slot and the clamping protrusion, effectively preventing the relative displacement or separation of the sensing base 110, the guide section 120 and the wiring section 130 due to external forces such as vibration and impact during the driving of the vehicle, thereby greatly improving the firmness and stability of the overall structure of the motor position sensor 100. This clamping structure is easy to operate during installation. It only needs to align the clamping protrusions of the left and right shells 122 with the corresponding clamping slots and insert them to complete the connection. During disassembly and maintenance, there is no need to use complex tools. Only appropriate force is needed to separate the various parts. It is convenient and fast, reducing the difficulty of installation and maintenance and improving work efficiency. The firm connection ensures that the electrical connection between the various parts will not be affected by structural looseness, ensuring the stability and accuracy of the signal during transmission, avoiding signal loss or interference caused by loose connection, and providing a guarantee for the reliable operation of the electric power-assisted braking system 1000.

[0039] In a possible embodiment of the present application, Figure 1 、 Figure 2 and Figure 3 As shown, a first buckle is provided on the inner side of the left shell 121, and a second buckle is provided on the inner side of the right shell 122 to be locked with the first buckle. The left shell 121 and the right shell 122 are connected by the first buckle and the second buckle.

[0040] This snap-fitting design facilitates assembly and disassembly of the left and right housings 122 while ensuring the structural stability of the guide section 120. The snap-fit ​​design of the first and second snaps eliminates the need for additional tools or connectors to assemble the left and right housings 122. Simply aligning and pressing the two together allows for a quick and accurate connection, significantly simplifying the production and assembly process, improving production efficiency, and reducing production costs.

[0041] The present application also discloses an electric power-assisted braking system 1000, comprising a motor 200, a valve block 300, an electronic control unit 400, and a motor position sensor 100 as described above. The motor 200 and the electronic control unit 400 are disposed on either side of the valve block 300. The induction seat 110 of the motor position sensor 100 is mounted on the valve block 300 and magnetically connected to the motor 200. The guide section 120 of the motor position sensor 100 passes through the valve block 300, and the wiring section 130 of the motor position sensor 100 is mated with the terminal on the electronic control unit 400 via a plug-in terminal. The system can accurately and stably detect the rotation angle of the motor 200 and transmit signals, enabling the electronic control unit 400 to more precisely control the operation of the drive motor 200, thereby achieving more precise braking assistance, improving the braking performance of the electric power-assisted braking system 1000, and providing more reliable safety protection for vehicle driving.

[0042] In a possible embodiment of the present application, Figure 1 、 Figure 2 and Figure 3 As shown, positioning protrusions are provided on both sides of the sensing base 110 of the motor position sensor 100 , and positioning grooves for accommodating the positioning protrusions are provided on the valve block 300 , and the positioning protrusions and the positioning grooves are interference fit.

[0043] Specifically, the positioning protrusions and positioning grooves are riveted together to provide a precise positioning reference for the installation of the sensing base 110 on the valve block 300, ensuring that the sensing base 110 can be accurately installed in the predetermined position and that the magnetic induction connection between the sensing base 110 and the motor 200 is in an optimal state, thereby improving the accuracy of the rotation angle detection of the motor 200. The interference fit makes the connection between the sensing base 110 and the valve block 300 tighter and more secure. Even when the vehicle is in motion and is subjected to external forces such as vibration and impact, the sensing base 110 is unlikely to shift or loosen, ensuring the stability and reliability of the motor position sensor 100 and avoiding detection errors and signal transmission problems caused by the displacement of the sensing base 110.

[0044] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A motor position sensor, characterized in that: It includes an induction seat and a guide section and a wiring section arranged in sequence on one side of the induction seat. The guide section passes through the valve block. The induction seat is arranged on the same side as the motor to detect the rotation angle of the motor. The wiring section is plug-in-matched with the terminal on the electronic control unit through terminals.

2. The motor position sensor according to claim 1, characterized in that: The wiring section includes a wiring housing and a wiring terminal inserted into the wiring housing. The wiring terminal includes a sleeve and an elastic arm arranged in the sleeve. The elastic arm and the inner wall of the sleeve cooperate to clamp the terminal on the electronic control unit.

3. The motor position sensor according to claim 2, characterized in that: The wiring housing is provided with a bell mouth which is in communication with the bushing, and the wiring posts on the electronic control unit are guided to be plugged and matched with the wiring terminals through the bell mouth.

4. The motor position sensor according to claim 2, characterized in that: The induction seat includes a mounting block and a circuit board arranged at the bottom of the mounting block. A connecting wire electrically connected to the circuit board is passed through the mounting block and is electrically connected to the guide section through the connecting wire.

5. The motor position sensor according to claim 4, characterized in that: The guide section includes a left shell, a right shell and a wire. The wire is accommodated in a tubular chamber formed by the left shell and the right shell. Both ends of the wire are electrically connected to the connecting wire and the terminal respectively. Protective grooves are provided on the left shell and the right shell, and the wire is fixed by limiting the position of the protective groove.

6. The motor position sensor according to claim 5, characterized in that: The mounting block is provided with a first connecting section, and the wiring housing is provided with a second connecting section. The first connecting section and the second connecting section are placed at two ends of a tubular cavity formed by the left housing and the right housing.

7. The motor position sensor according to claim 6, characterized in that: A first card slot is provided on the first connecting section, a second card slot is provided on the second connecting section, first card protrusions are provided at both ends of the left shell to respectively clamp the first card slot and the second card slot, and second card protrusions are provided at both ends of the right shell to respectively clamp the first card slot and the second card slot.

8. The motor position sensor according to claim 5, characterized in that: A first buckle is provided on the inner side of the left shell, and a second buckle is provided on the inner side of the right shell to be locked with the first buckle. The left shell and the right shell are connected by the first buckle and the second buckle.

9. An electric power-assisted braking system, characterized in that: It includes a motor, a valve block, an electronic control unit and the motor position sensor according to any one of claims 1 to 8, wherein the motor and the electronic control unit are arranged on both sides of the valve block, the induction seat of the motor position sensor is installed on the valve block and is magnetically inductively connected to the motor, the guide section of the motor position sensor passes through the valve block, and the wiring section of the motor position sensor is plug-in-matched with the wiring post on the electronic control unit through terminals.

10. The electric power-assisted braking system according to claim 9, characterized in that: Positioning protrusions are provided on both sides of the induction seat of the motor position sensor, and positioning grooves for accommodating the positioning protrusions are provided on the valve block, and the positioning protrusions are interference-fitted with the positioning grooves.

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