Motorcycle tachometer calibration device
By integrating signal generation, acquisition, and processing modules into a motorcycle tachometer calibration device, combined with an auxiliary heat dissipation mechanism, the problems of cumbersome operation and susceptibility to interference in existing technologies have been solved, achieving high-precision and rapid calibration results and preventing overheating of electronic components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-03-31
AI Technical Summary
Existing motorcycle tachometer calibration devices are cumbersome to operate and susceptible to interference. Their internal electronic components are prone to overheating, which can lead to performance degradation and affect calibration stability.
A motorcycle tachometer calibration device integrating a signal generation module, a signal acquisition module, and a data processing module was designed. It has automatic measurement and error analysis functions and is equipped with an auxiliary heat dissipation mechanism to prevent overheating, including a cooling fan and a rectangular exhaust nozzle forming a forced convection airflow duct.
It achieves fully automatic speed signal measurement and error analysis, improves calibration accuracy, avoids subjective errors, shortens calibration time, and prevents performance degradation or damage caused by overheating of electronic components.
Smart Images
Figure CN224066826U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motorcycle instrument testing technology, and in particular to a motorcycle tachometer calibration device. Background Technology
[0002] The tachometer on a motorcycle is an important instrument for the driver to monitor the engine's operating status. Its accuracy is directly related to driving safety, fuel economy, and engine life. Therefore, the tachometer needs to be calibrated regularly.
[0003] In existing calibration devices, when using a signal generator to simulate engine speed pulses, the frequency needs to be manually adjusted, which is cumbersome and susceptible to interference. Moreover, when the equipment is working for a long time, the internal electronic components (such as microprocessors and signal generators) are prone to overheating, which can lead to performance degradation and affect calibration stability. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a motorcycle tachometer calibration device, which solves the technical problems of cumbersome operation and susceptibility to interference in existing calibration devices, and has the advantage of being able to automatically measure speed signals and perform error analysis.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a motorcycle tachometer calibration device, including a housing with a dust cover movably installed on the housing, an installation platform detachably installed inside the housing, a data calibration mechanism on the installation platform, and an auxiliary heat dissipation mechanism inside the housing. When calibrating a motorcycle tachometer using this device, the data calibration mechanism automatically measures and compares the tachometer reading with the actual engine speed. The data calibration mechanism includes a signal generation module, a signal acquisition module, a data processing module, and a human-machine interaction module. The signal generation module simulates the engine speed signal to provide a high-precision reference signal. The signal acquisition module captures the actual output signal of the tachometer. The data processing module performs signal analysis and error calculation. The human-machine interaction module provides an operation interface and result feedback. During tachometer calibration, the signal acquisition module measures the motorcycle engine speed in real time, and simultaneously, the data processing module compares the measured engine speed with the reference signal to determine the tachometer error.
[0006] Preferably, the installation platform is provided with a data acquisition interface that works with the signal acquisition module. A data acquisition cable is connected to the data acquisition interface. One end of the data acquisition cable is connected to the data acquisition interface, and the other end of the data acquisition cable is connected to the ECU interface or OBD interface of the motorcycle.
[0007] Preferably, the auxiliary heat dissipation mechanism includes an internal cavity set on the housing, a heat dissipation hole on one side of the housing, a cooling fan fixedly installed on the other side of the housing, a rectangular exhaust nozzle fixedly installed on the inner wall of the housing, and a lithium battery assembly that supplies power to the data calibration mechanism inside the internal cavity. When the cooling fan is working, it will dissipate the heat inside the housing to the outside through the heat dissipation hole.
[0008] Preferably, the data processing module is located inside the internal cavity, and the cooling fan can promptly blow out the heat generated by the data processing module.
[0009] Preferably, the human-machine interaction module includes an LCD display screen that can display the target speed, measured value, and error in real time, thereby helping staff to quickly determine the tachometer error and facilitating subsequent calibration work.
[0010] Preferably, the rectangular exhaust nozzle is connected to the output end of the cooling fan. The rectangular exhaust nozzle can effectively increase the airflow area and avoid heat dissipation dead zones.
[0011] By employing the above technical solution, this utility model provides a motorcycle tachometer calibration device, which has at least the following beneficial effects:
[0012] 1. This utility model, by setting up a data calibration mechanism and integrating a signal generation module, a signal acquisition module and a data processing module, realizes fully automatic speed signal measurement and error analysis. It can not only avoid the subjective error of traditional manual calibration and significantly improve calibration accuracy, but also greatly shorten calibration time, making it suitable for batch repair scenarios.
[0013] 2. This utility model, by setting up an auxiliary heat dissipation mechanism, uses a cooling fan, rectangular exhaust nozzles, and heat dissipation holes to form a forced convection airflow channel, and adopts a modular isolation layout, which can quickly dissipate the heat generated by the microcontroller and lithium battery components, and can effectively prevent high temperature from causing performance degradation or hardware damage. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0015] Figure 1 This is a perspective view of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the data calibration mechanism in this utility model;
[0017] Figure 3 This is a schematic diagram of the data processing module in this utility model;
[0018] Figure 4 This is a schematic diagram of the auxiliary heat dissipation mechanism in this utility model.
[0019] In the diagram: 1. Housing; 2. Dustproof cover; 3. Mounting platform; 4. Data calibration mechanism; 401. Signal generation module; 402. Signal acquisition module; 403. Data acquisition interface; 404. Data processing module; 405. Human-machine interaction module; 5. Auxiliary heat dissipation mechanism; 501. Internal cavity; 502. Heat dissipation vent; 503. Cooling fan; 504. Rectangular exhaust nozzle; 505. Lithium battery assembly. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0021] Example 1
[0022] Existing calibration devices, when simulating engine speed pulses using a signal generator, require manual frequency adjustment, which is cumbersome and susceptible to interference. Furthermore, during prolonged operation, internal electronic components (such as the microprocessor and signal generator) are prone to overheating, leading to performance degradation and affecting calibration stability. To address these shortcomings in existing technologies, such as... Figures 1-4 As shown, this embodiment proposes a motorcycle tachometer calibration device, which integrates a signal generation module 401, a signal acquisition module 402, and a data processing module 404 to realize fully automatic speed signal measurement and error analysis. The device includes a housing 1, on which a dust cover 2 is movably installed. Inside the housing 1, a mounting platform 3 is detachably installed, and a data calibration mechanism 4 is set on the mounting platform 3. An auxiliary heat dissipation mechanism 5 is set inside the housing 1. When calibrating the motorcycle tachometer using this device, the data calibration mechanism 4 will automatically measure and compare the tachometer reading with the actual engine speed.
[0023] Specifically, the data calibration mechanism 4 includes a signal generation module 401, a signal acquisition module 402, a data processing module 404, and a human-machine interaction module 405. The human-machine interaction module 405 includes an LCD display screen, which can display the target speed, measured value, and error in real time, thereby helping the staff to quickly determine the tachometer error and facilitating subsequent calibration work. The signal generation module 401 is used to simulate engine speed signals and provide high-precision reference signals. The signal acquisition module 402 is used to capture the actual output signal of the tachometer. The installation platform 3 is equipped with a data acquisition module that works in conjunction with the signal acquisition module 402. The data acquisition interface 403 is connected to a data acquisition cable. One end of the data acquisition cable is connected to the data acquisition interface 403, and the other end is connected to the motorcycle's ECU interface or OBD interface. The data processing module 404 is used for signal analysis and error calculation, and the human-machine interaction module 405 is used to provide an operation interface and result feedback. During the tachometer calibration operation, the signal acquisition module 402 will measure the motorcycle engine speed in real time. At the same time, the data processing module 404 will compare the measured engine speed with the reference signal to obtain the tachometer error.
[0024] Specifically, the auxiliary heat dissipation mechanism 5 includes an internal cavity 501 set on the housing 1. The data processing module 404 is located inside the internal cavity 501. The cooling fan 503 can blow away the heat generated by the data processing module 404 in a timely manner. A heat dissipation hole 502 is opened on one side of the housing 1, and a cooling fan 503 is fixedly installed on the other side of the housing 1. A rectangular exhaust nozzle 504 is fixedly installed on the inner wall of the housing 1. The rectangular exhaust nozzle 504 is connected to the output end of the cooling fan 503. The rectangular exhaust nozzle 504 can effectively increase the air blowing area and avoid heat dissipation dead corners. The internal cavity 501 is equipped with a lithium battery component 505 that supplies power to the data calibration mechanism 4. When the cooling fan 503 is working, it will exhaust the heat inside the housing 1 to the outside through the heat dissipation hole 502.
[0025] As can be seen from the above, when using this device to calibrate the motorcycle tachometer, the operator first connects one end of the data acquisition cable to the data acquisition interface 403, and then connects the other end of the data acquisition cable to the motorcycle's ECU / OBD interface.
[0026] Next, the signal generation module 401 uses a programmable signal generator to generate a pulse signal corresponding to the engine speed, thereby providing a high-precision reference signal. At the same time, the signal acquisition module 402 captures the actual output signal of the motorcycle tachometer.
[0027] Subsequently, the data processing module 404 uses the microcontroller to analyze and compare the two signals to obtain the actual error of the motorcycle tachometer. Next, the staff will use the human-machine interaction module 405 to calibrate and adjust the tachometer based on the measured actual error.
[0028] Moreover, such as Figure 4 As shown, during use, the cooling fan 503 will always be working, which can quickly blow out the heat inside the internal cavity 501, thereby preventing the microprocessor and lithium battery component 505 from being damaged due to overheating.
[0029] This embodiment, by setting up a data calibration mechanism 4, integrates a signal generation module 401, a signal acquisition module 402, and a data processing module 404, realizing fully automatic speed signal measurement and error analysis. This not only avoids the subjective errors of traditional manual calibration and significantly improves calibration accuracy, but also greatly shortens calibration time, making it suitable for batch repair scenarios. Moreover, this embodiment, by setting up an auxiliary heat dissipation mechanism 5, uses a cooling fan 503, a rectangular exhaust nozzle 504, and heat dissipation holes 502 to form a forced convection airflow channel, and adopts a modular isolation layout, which can quickly dissipate the heat generated by the microcontroller and lithium battery components 505, effectively preventing performance degradation or hardware damage caused by high temperatures.
[0030] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.
[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A motorcycle speedometer calibration device, comprising a box body (1), a dustproof cover plate (2) is movably installed on the box body (1), and a mounting platform (3) is detachably installed in the box body (1), characterized in that: The installation platform (3) is provided with a data calibration mechanism (4), and the inside of the box (1) is provided with an auxiliary heat dissipation mechanism (5); The data calibration mechanism (4) comprises a signal generation module (401), a signal acquisition module (402), a data processing module (404) and a man-machine interaction module (405), the signal generation module (401) is used for simulating an engine speed signal and providing a high-precision reference signal, the signal acquisition module (402) is used for capturing an actual output signal of a speedometer, the data processing module (404) is used for signal analysis and error calculation, and the man-machine interaction module (405) is used for providing an operation interface and result feedback.
2. A motorcycle speedometer calibration device as claimed in claim 1, characterised in that: The installation platform (3) is provided with a data acquisition interface (403) matched with the signal acquisition module (402), and the data acquisition interface (403) is connected with a data acquisition line.
3. The motorcycle speedometer calibration device of claim 1, wherein: The auxiliary heat dissipation mechanism (5) comprises an internal cavity (501) arranged on the box (1), a heat dissipation through hole (502) is formed on one side of the box (1), a heat dissipation fan (503) is fixedly installed on the other side of the box (1), a rectangular exhaust nozzle (504) is fixedly installed on the inner side wall of the box (1), and a lithium battery assembly (505) for supplying power to the data calibration mechanism (4) is arranged in the internal cavity (501).
4. A motorcycle speedometer calibration device as claimed in claim 3, characterised in that: The data processing module (404) is located in the internal cavity (501).
5. The motorcycle speedometer calibration device of claim 1, wherein: The man-machine interaction module (405) comprises an LCD display screen and can display a target speed, a measured value and an error in real time.
6. The motorcycle speedometer calibration device of claim 3, wherein: The rectangular exhaust nozzle (504) is connected with the output end of the heat dissipation fan (503).