Electric bicycle brake distance detection device

Abstract

The utility model relates to electric bicycle detection device technical field, concretely relates to electric bicycle brake distance detection device, including the brake trigger module of installation in electric bicycle brake handlebar part, one side of brake trigger module is provided with rectangular pole, the bottom fixed mounting of rectangular pole has fixed base, the upper and lower two symmetrical fastening bolts fixed between rectangular slipper and rectangular pole are connected with the sliding of rectangular pole, the front side of rectangular slipper is fixedly installed with laser ranging sensor, the front side of rectangular slipper still is fixedly installed with infrared lamp, the upper surface of fixed base is fixedly installed with water storage tank, the top of water storage tank is fixedly installed with the adding pipe for adding water, is screwed on adding pipe with screw cap. The utility model is beneficial to the detection operation of brake distance, and convenient operation, use.

Description

Technical Field

[0001] This utility model relates to the technical field of electric bicycle testing devices, specifically to an electric bicycle braking distance testing device. Background Technology

[0002] With the increasing popularity of electric bicycles, their safety performance has received more and more attention. Braking distance is an important indicator for measuring the safety performance of electric bicycles, and accurate detection of braking distance is crucial to ensuring riding safety.

[0003] When performing braking distance testing on electric bicycles, traditional testing mainly relies on manual methods. Manual testing is greatly affected by human factors. Different operators have different operating habits and reaction speeds, which leads to large deviations in the test results and makes it difficult to guarantee the accuracy and reliability of the test data.

[0004] Chinese patent application CN111137261B discloses a braking control device, which includes a detection module and a control board connected to the detection module. The detection module detects the crushing action of a vehicle under test and generates an indication signal, which is then sent to the control board. The control board is connected to the control system of the vehicle under test and, upon receiving the indication signal, sends a control command to the control system of the vehicle under test to bring the vehicle to a stop. This invention, by detecting the indication signal generated by the detection module and then using the control board to brake the vehicle based on the indication signal, avoids the problem of control lead-up or control lag caused by hand-eye reaction time deviation, improves the accuracy of braking distance detection, and reduces the cost of braking distance detection.

[0005] While this technical solution has its advantages, it primarily targets the braking distance of automobiles and is not suitable for detecting the braking distance of electric bicycles. Currently, braking distance detection for electric bicycles typically utilizes dedicated electric bicycle braking distance detection devices. These devices, using a trigger module mounted on the brake lever in conjunction with external distance sensors, can perform relatively accurate braking distance detection. However, in most electric bicycle braking distance detection devices, the distance sensor's detection area is initially misaligned with the electric bicycle's position due to a lack of positioning components. This results in the distance sensor being placed outside the electric bicycle's movement path, further hindering its proper detection and affecting its effectiveness. Therefore, we propose an electric bicycle braking distance detection device. Utility Model Content

[0006] The purpose of this invention is to provide a braking distance detection device for electric bicycles to solve the defects mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An electric bicycle braking distance detection device includes a brake trigger module installed on the brake lever of the electric bicycle. A rectangular rod is provided on one side of the brake trigger module, and a fixed base is fixedly installed at the bottom end of the rectangular rod. A rectangular sliding sleeve is slidably connected to the rectangular rod. The rectangular sliding sleeve and the rectangular rod are fixed by two symmetrical fastening bolts. A laser range sensor is fixedly installed on the front side of the rectangular sliding sleeve, and an infrared lamp is also fixedly installed on the front side of the rectangular sliding sleeve.

[0009] Preferably, the brake trigger module includes an electromagnetic induction element and a movable armature. After the movable armature moves toward the electromagnetic induction element, it is used to change the magnetic resistance of the magnetic circuit and the size of the air gap in the magnetic circuit.

[0010] Preferably, both the electromagnetic induction element and the movable armature are fixedly mounted with a snap-fit ​​ring, the snap-fit ​​ring is snapped onto the corresponding brake handle, and a fastening screw is threaded onto the snap-fit ​​ring;

[0011] This setting facilitates assembly operations.

[0012] Preferably, the rectangular rod has a rectangular cross-section, and the dimensions of the rectangular sliding sleeve are adapted to the dimensions of the rectangular rod.

[0013] Preferably, a water storage tank is fixedly installed on the upper surface of the fixed base, and the water storage tank stores water for the stable support operation of the fixed base.

[0014] Preferably, an addition pipe for adding water is fixedly installed on the top surface of the water storage tank, and a threaded cap is threadedly connected to the addition pipe.

[0015] Preferably, an inner wear-resistant layer is provided on the inner surface of the rectangular sliding sleeve, and the thickness of the inner wear-resistant layer is between 0.5 mm and 1.5 mm.

[0016] Preferably, a support frame is fixedly installed on the bottom of the rectangular rod, and a control host is fixedly installed on the support frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, by setting up a brake trigger module in conjunction with a laser rangefinder sensor and an infrared lamp, enables the electromagnetic induction element and movable armature in the brake trigger module to accurately capture the braking action. The infrared lamp can assist in positioning the laser rangefinder sensor to ensure that it is on the moving path of the electric bicycle. This achieves accurate detection of the braking distance of the electric bicycle, avoids the deviation of manual detection and the detection errors caused by inaccurate sensor positioning in traditional devices, and improves the accuracy and reliability of detection.

[0019] 2. This utility model designs the overall structure specifically for electric bicycles. The locking ring of the brake trigger module can be securely installed on the brake lever. The cooperation between the rectangular rod and the rectangular sliding sleeve can flexibly adjust the position of the laser rangefinder sensor. This solves the problem that existing automotive brake detection technology is not suitable for electric bicycles, achieving a dedicated adaptation for electric bicycles and ensuring stable and effective operation in electric bicycle detection scenarios. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0022] Figure 3 This is the second partial structural schematic diagram of the present utility model;

[0023] Figure 4 This is a schematic diagram of the rectangular sliding sleeve of this utility model;

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1. Brake trigger module; 10. Electromagnetic induction element; 11. Movable armature; 12. Snap-fit ​​ring; 13. Fastening screw;

[0026] 2. Rectangular rod; 20. Fixed base; 21. Water tank; 22. Adding pipe; 23. Threaded cap; 24. Rectangular sliding sleeve; 241. Inner wear-resistant layer; 25. Fastening bolt; 26. Laser rangefinder sensor; 27. Infrared lamp; 28. Support frame; 281. Control host. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-4 This utility model provides a technical solution: an electric bicycle braking distance detection device, including a brake trigger module 1 installed on the brake lever of an electric bicycle. A rectangular rod 2 is provided on one side of the brake trigger module 1, and a fixed base 20 is fixedly installed at the bottom end of the rectangular rod 2. A rectangular sliding sleeve 24 is slidably connected to the rectangular rod 2. The rectangular sliding sleeve 24 and the rectangular rod 2 are fixed by two symmetrical fastening bolts 25. A laser range sensor 26 is fixedly installed on the front side of the rectangular sliding sleeve 24, and an infrared lamp 27 is also fixedly installed on the front side of the rectangular sliding sleeve 24, enabling the device to accurately capture braking action and accurately measure braking distance. The infrared lamp 27 can also assist in positioning to ensure that the laser range sensor 26 is in the correct detection position.

[0029] In this embodiment, the brake trigger module 1 includes an electromagnetic induction element 10 and a movable armature 11. After the movable armature 11 moves towards the electromagnetic induction element 10, it changes the magnetic resistance of the magnetic circuit and the size of the air gap in the magnetic circuit, enabling the braking action to be sensitively detected and providing a precise trigger signal for subsequent braking distance detection. The electromagnetic induction element 10 consists of a permanent magnet, an induction coil, and a magnetic yoke. When the brake handle is operated, it drives the movable armature 11 to move accordingly, thereby changing the magnetic resistance of the magnetic circuit or the size of the air gap in the magnetic circuit. For example, when the brake handle is operated, the movable armature 11 moves towards the induction coil, leading to… The reduction in the air gap in the magnetization circuit lowers the magnetic resistance, causing a change in the magnetic flux passing through the induction coil. According to Faraday's law of electromagnetic induction, when the magnetic flux passing through the induction coil changes, an induced electromotive force is generated in the induction coil. In the brake trigger module 1 of this patent, the electromagnetic induction element 10, through the above structural design, can sensitively sense the change in the magnetic field at the moment the brake handle is moved, thereby generating an induced electromotive force. After being amplified by the signal amplifier, a high-level brake trigger signal is output, realizing accurate detection and signal output of the braking action. The output of the high-level brake trigger signal can be transmitted wirelessly.

[0030] Specifically, a snap-fit ​​ring 12 is fixedly installed on both the electromagnetic induction element 10 and the movable armature 11. The snap-fit ​​ring 12 is snapped onto the corresponding brake handle. A fastening screw 13 is threaded onto the snap-fit ​​ring 12, so that the brake trigger module 1 can be firmly installed on the brake handle, and it is easy to install and disassemble, thus improving assembly efficiency.

[0031] Furthermore, the cross-section of the rectangular rod 2 is rectangular, and the size of the rectangular sliding sleeve 24 is adapted to the size of the rectangular rod 2, so that the rectangular sliding sleeve 24 will not rotate when sliding on the rectangular rod 2, ensuring the stability of the detection direction of the laser rangefinder 26 and the infrared lamp 27, and improving the detection accuracy.

[0032] like Figure 1As shown, a water tank 21 is fixedly installed on the upper surface of the fixed base 20. The water tank 21 stores water for the stable support operation of the fixed base 20, which increases the weight of the fixed base 20, enhances the overall stability of the device, and avoids the device shaking during the detection process from affecting the detection results.

[0033] like Figure 1 As shown, an addition pipe 22 for adding water is fixedly installed on the top surface of the water storage tank 21. A threaded cap 23 is threadedly connected to the addition pipe 22, which makes it more convenient to add water into the water storage tank 21. The threaded cap 23 can prevent water from overflowing and ensure the normal use of the water storage tank 21.

[0034] In addition, an inner wear-resistant layer 241 is provided on the inner surface of the rectangular slide sleeve 24. The thickness of the inner wear-resistant layer 241 is between 0.5mm and 1.5mm, which reduces the wear when the rectangular slide sleeve 24 slides with the rectangular rod 2, extends the service life of the rectangular slide sleeve 24, and ensures the long-term stable operation of the device.

[0035] It is worth noting that a support frame 28 is fixedly installed on the bottom of the rectangular rod 2, and a control host 281 is fixedly installed on the support frame 28. The control host 281 has a stable installation position, which facilitates centralized processing of data transmitted from various modules and improves the data processing efficiency and overall coordination of the device.

[0036] It is worth noting that the laser rangefinder 26 is used to measure the displacement of the electric bicycle after braking. When the brake trigger signal is issued, the laser rangefinder starts to work and measures the distance between the laser emission point and the wheel stop position in real time. The laser rangefinder has the advantages of high measurement accuracy and fast response speed, and can accurately obtain the displacement data of the electric bicycle during the braking process.

[0037] In this embodiment, the control host 281 employs a high-performance microprocessor responsible for receiving data output from the brake trigger module and the displacement measurement module. Based on the received brake trigger signal, the microprocessor records the speed data at that moment and, after the braking process ends, acquires the braking distance data measured by the displacement measurement module. Then, according to a preset algorithm, it calculates parameters such as the braking time and average braking acceleration of the electric bicycle. After data processing, the detected data is displayed on the built-in LCD screen on the control host 281.

[0038] Finally, it should be noted that the laser ranging sensor 26, electromagnetic induction element 10, movable armature 11, control host 281, corresponding wireless transmission module, signal amplifier, control circuit, control system, and external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted controllers and power supplies, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0039] When using the electric bicycle braking distance detection device of this utility model, firstly, the electromagnetic induction element 10 and the movable armature 11 are fixed to the corresponding positions on the electric bicycle brake lever by the snap ring 12 and fastening screw 13 of the brake trigger module 1. Then, water is added to the water tank 21, and after adding water through the adding pipe 22, the threaded cap 23 is tightened. The device is then placed stably using the fixed base 20. The height is adjusted by sliding the rectangular sliding sleeve 24 and fixed with the fastening bolt 25. The infrared lamp 27 is turned on to assist in calibration and ensure that the laser range sensor 26 is aligned with the electric bicycle's travel path.

[0040] During testing, the control host 281 is started, and the electric bicycle is ridden to a preset speed. The preset speed can be displayed on the instrument panel of the electric bicycle. Then, the brake lever is squeezed, and the moving armature 11 is brought close to the electromagnetic induction element 10 to change the magnetic circuit. The induced electromotive force generated is amplified and sent to the control host 281 wirelessly. After receiving the signal, the control host 281 records the current state and triggers the laser range sensor 26 to work, measuring the brake displacement in real time.

[0041] After braking is completed, the laser rangefinder 26 transmits the data to the control host 281. The host calculates and stores parameters such as braking distance, thus completing one detection.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electric bicycle braking distance detection device, characterized in that: The device includes a brake trigger module (1) installed on the brake lever of an electric bicycle. A rectangular rod (2) is provided on one side of the brake trigger module (1). A fixed base (20) is fixedly installed at the bottom end of the rectangular rod (2). A rectangular sliding sleeve (24) is slidably connected to the rectangular rod (2). The rectangular sliding sleeve (24) is fixed to the rectangular rod (2) by two symmetrical fastening bolts (25). A laser range sensor (26) is fixedly installed on the front side of the rectangular sliding sleeve (24). An infrared lamp (27) is also fixedly installed on the front side of the rectangular sliding sleeve (24).

2. The electric bicycle braking distance detection device according to claim 1, characterized in that: The brake trigger module (1) includes an electromagnetic induction element (10) and a movable armature (11). After the movable armature (11) moves toward the electromagnetic induction element (10), it is used to change the magnetic resistance of the magnetic circuit and the size of the air gap in the magnetic circuit.

3. The electric bicycle braking distance detection device according to claim 2, characterized in that: Both the electromagnetic induction element (10) and the movable armature (11) are fixedly mounted with a snap ring (12), which is snapped onto the corresponding brake handle. A fastening screw (13) is threaded onto the snap ring (12).

4. The electric bicycle braking distance detection device according to claim 1, characterized in that: The rectangular rod (2) has a rectangular cross-section, and the size of the rectangular sliding sleeve (24) is adapted to the size of the rectangular rod (2).

5. The electric bicycle braking distance detection device according to claim 1, characterized in that: A water tank (21) is fixedly installed on the upper surface of the fixed base (20), and the water tank (21) stores water for the stable support operation of the fixed base (20).

6. The electric bicycle braking distance detection device according to claim 5, characterized in that: A water-adding pipe (22) for adding water is fixedly installed on the top surface of the water storage tank (21), and a threaded cap (23) is threadedly connected to the water-adding pipe (22).

7. The electric bicycle braking distance detection device according to claim 1, characterized in that: The inner surface of the rectangular sliding sleeve (24) is provided with an inner wear-resistant layer (241), the thickness of which is between 0.5 mm and 1.5 mm.

8. The electric bicycle braking distance detection device according to claim 1, characterized in that: A support frame (28) is fixedly installed on the bottom of the rectangular rod (2), and a control host (281) is fixedly installed on the support frame (28).

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