Automobile brake pad fault detection equipment

Abstract

The utility model discloses automobile brake pad fault detection equipment, which comprises a vehicle-mounted computer, an automobile hub and a brake pad arranged on the side wall of the hub, the outer end face of the brake pad is provided with a mounting seat, an induction piece is embedded in the brake pad, the mounting seat is provided with a Hall sensor corresponding to the induction piece, and the Hall sensor is connected with the automobile hub. And the Hall sensor is electrically connected with the vehicle-mounted computer through a transmission line. The sensing piece corresponding to the Hall sensor is reserved in the brake pad, when the brake pad belongs to a normal range, the sensing piece is not abraded at the moment, data received by the Hall sensor is within a set range, and when the thickness of the brake pad needs to be replaced, the sensing piece is abraded along with the brake pad itself, and the data received by the Hall sensor is not abraded. At the moment, the difference between data received by the Hall sensor and data set by the vehicle-mounted computer is large, a driver can be prompted that the brake pad needs to be replaced through the vehicle-mounted computer, the detection precision is higher, and meanwhile faults of the brake pad can be detected in real time.

Description

Technical Field

[0001] The utility model belongs to the technical field of brake pad detection, in particular to automobile brake pad fault detection equipment. Background Art

[0002] Car brake pads, also known as car brake leathers, refer to the friction materials fixed on the brake drum or brake disc that rotates with the wheel. The friction lining and friction pads bear external pressure and generate friction to achieve the purpose of vehicle deceleration. After long-term use, the brake pads will become thinner due to wear and tear, and they need to be replaced.

[0003] Currently, the remaining thickness of brake pads is generally measured by naked eyes or vernier calipers, but there is a problem of low detection accuracy. In addition, it is impossible to detect the remaining thickness of the brake pads in real time, and there are still limitations. Utility Model Content

[0004] The purpose of the utility model is to provide a vehicle brake pad fault detection device in order to solve the above-mentioned problem.

[0005] The technical solution adopted by the utility model is as follows: an automobile brake pad fault detection device, including an on-board computer, an automobile wheel hub and a brake pad arranged on the side wall of the wheel hub, the outer end surface of the brake pad has a mounting seat, the interior of the brake pad is embedded with a sensing component, a Hall sensor corresponding to the sensing component is installed on the mounting seat, and the Hall sensor is electrically connected to the on-board computer through a transmission line.

[0006] In a preferred embodiment, a threaded through hole is formed on the mounting seat, and a threaded head matching the threaded through hole is formed on the Hall sensor.

[0007] In a preferred embodiment, an O-ring is sleeved on the outer end of the threaded head, and when the threaded head is installed in the threaded through hole, the O-ring is interference fit between the mounting seat and the Hall sensor.

[0008] In a preferred embodiment, the distance between the induction element and the Hall sensor is 0.4-0.5 cm.

[0009] In a preferred embodiment, the induction element is a circular magnet sheet, and the thickness of the induction element is 0.5-1 mm.

[0010] In a preferred embodiment, the mounting seat and the brake pad are fixed together by a plurality of fixing screws.

[0011] In a preferred embodiment, a hole is formed on the brake pad at a side of the sensing element facing the Hall sensor.

[0012] To sum up, due to the adoption of the above-mentioned technical scheme, the beneficial effect of the utility model is as follows: a sensing part corresponding to the Hall sensor is reserved in the brake pad, and when the brake pad reaches the thickness that needs to be replaced, the sensing part is worn away along with the brake pad itself. At this time, the data received by the Hall sensor is very different from the data set by the on-board computer, and the on-board computer can prompt the driver that the brake pad needs to be replaced. While the detection accuracy is higher, the brake pad fault can also be detected in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall planar structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional plan structure of the utility model from a side view;

[0015] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point a in the middle.

[0016] Markings in the figure: 1-wheel hub, 2-mounting seat, 3-Hall sensor, 4-fixing screw, 5-brake pad, 6-thread head, 7-sensing part, 8-hole, 9-O-ring, 10-transmission line, 11-on-board computer. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Reference Figure 1-3The automobile brake pad fault detection device comprises an on-board computer 11, an automobile wheel hub 1 and a brake pad 5 arranged on the side wall of the wheel hub 1, the outer end surface of the brake pad 5 has a mounting seat 2, the interior of the brake pad 5 is embedded with a sensing member 7, a Hall sensor 3 corresponding to the sensing member 7 is mounted on the mounting seat 2, the Hall sensor 3 is electrically connected to the on-board computer 11 through a transmission line 10, the sensing member 7 is a circular magnet sheet, the thickness of the sensing member 7 is 0.5-1mm, and a circular magnet sheet corresponding to the Hall sensor 3 is reserved in the brake pad 5. When the brake pad 5 is within a normal range, the sensing member 7 is not worn at this time, and the data received by the Hall sensor 3 is within a set range. When the brake pad 5 reaches a thickness that needs to be replaced, since the sensing member 7 is worn away along with the brake pad 5 itself, the data received by the Hall sensor 3 is greatly different from the data set by the on-board computer 11, and the on-board computer 11 can be used to prompt the driver that the brake pad 5 needs to be replaced. While the detection accuracy is higher, the fault of the brake pad 5 can also be detected in real time.

[0019] Among them, the on-board computer 11 (with a display screen) is the main control part of the current car, and the electrical connection method with the Hall sensor 3 is an existing commonly used and feasible technology, which will not be explained in detail.

[0020] In addition, the mounting base 2 is mounted on the brake propulsion system of the automobile. Since the brake propulsion system is essential for existing automobiles, the specific position and structure will not be described here.

[0021] Furthermore, a threaded through hole is provided on the mounting base 2, and a threaded head 6 matched with the threaded through hole is provided on the Hall sensor 3. The mounting base 2 and the Hall sensor 3 are detachably connected. When one component is damaged, it can be directly disassembled and replaced without the need for integrated replacement, which can save costs.

[0022] Furthermore, an O-ring 9 is sleeved on the outer end of the threaded head 6. When the threaded head 6 is installed in the threaded through hole, the O-ring 9 is interference fit between the mounting base 2 and the Hall sensor 3. The O-ring 9 can ensure the sealing of the connection between the mounting base 2 and the Hall sensor 3.

[0023] Furthermore, the spacing between the sensing element 7 and the Hall sensor 3 is 0.4 to 0.5 cm. When the thickness of the brake pad 5 is above 0.5 cm, the brake pad 5 can still meet normal braking requirements. When the thickness is below 0.5 cm, the braking effect of the brake pad 5 is poor. Therefore, the spacing is set in the range of 0.4 to 0.5 cm.

[0024] Reference Figure 1 As shown, the mounting base 2 and the brake pad 5 are fixed together by a plurality of fixing screws 4. When the brake pad 5 needs to be replaced, the fixing screws 4 can be removed and the brake pad 5 can be replaced.

[0025] Reference Figure 3 As shown, a hole 8 is provided on the brake pad 5 on the side of the sensing element 7 facing the Hall sensor 3. The hole 8 can reduce the influence of the brake pad 5 itself on the sensing element 7 and the Hall sensor 3, and can also reduce part of the cost of the brake pad 5 itself.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Automobile brake pad fault detection equipment, including an on-board computer, an automobile wheel hub and a brake pad arranged on the side wall of the wheel hub, characterized in that: The outer end surface of the brake pad is provided with a mounting seat, a sensing component is embedded inside the brake pad, a Hall sensor corresponding to the sensing component is mounted on the mounting seat, the Hall sensor is electrically connected to the on-board computer via a transmission line, a threaded through hole is provided on the mounting seat, a threaded head matching the threaded through hole is provided on the Hall sensor, an O-ring is sleeved on the outer end of the threaded head, and when the threaded head is installed in the threaded through hole, the O-ring is interference fit between the mounting seat and the Hall sensor.

2. The automobile brake pad fault detection device according to claim 1, characterized in that: The distance between the induction element and the Hall sensor is 0.4-0.5 cm.

3. The automobile brake pad fault detection device according to claim 1, characterized in that: The induction element is a circular magnet sheet, and the thickness of the induction element is 0.5-1 mm.

4. The automobile brake pad fault detection device according to claim 1, characterized in that: The mounting seat and the brake pad are fixed together by a plurality of fixing screws.

5. The automobile brake pad fault detection device according to claim 1, characterized in that: A hole is formed on the brake pad at one side of the sensing element facing the Hall sensor.

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