Method and system for detecting linear performance of turning handle of electric vehicle

Abstract

The invention relates to a method and a system for detecting the linear performance of a turning handle of an electric vehicle, the input end of a Hall sensor on the turning handle is connected to a power supply, the turning handle is screwed to a preset angle at a constant speed, and a data acquisition recorder continuously acquires voltage signal values output by the Hall sensor on the turning handle at a specific interval time; and the upper computer draws a voltage linear graph or / and table data according to the voltage signal values. The linear atlas of the sensor of the rotating handle can be obtained, and analysis and judgment of consistency and stability of output signals are provided.

Description

Technical Field

[0001] The invention relates to an electric vehicle handlebar, more specifically to a detection system for detecting the linear performance of a Hall sensor of the electric vehicle handlebar. Background Art

[0002] Electric bikes and electric motorcycles use linear Hall sensors to adjust the speed. The rotation angle is generally around 60-75 degrees. Existing manufacturers' quality inspection of the handlebars is limited to whether the output voltage of the Hall sensor is within the normal range to determine the product's qualification, but the above inspection cannot accurately present the quality and performance of the handlebars. We found that the linear output of the sensor is very important, which determines the stability and safety of the vehicle's driving process; however, there is no dedicated equipment on the market to detect the finished linear output of electric bike handlebars. Summary of the invention

[0003] Purpose of the invention: To overcome the defects of the prior art, the present invention provides a method for detecting the linear performance of an electric vehicle handlebar, which can obtain the linear spectrum of the sensor of the handlebar and provide analysis and judgment of the consistency and stability of the output signal.

[0004] To achieve the above object, the present invention provides the following technical solutions: A method for detecting the linear performance of an electric vehicle handlebar, wherein the input end of a Hall sensor on the handlebar is connected to a power source, the handlebar is rotated to a preset angle at a constant speed, the voltage signal value output by the Hall sensor on the handlebar is continuously collected at specific intervals, and a voltage linear graph or / and table data is drawn according to the voltage signal value.

[0005] The invention also discloses a linear performance detection system for an electric vehicle handlebar, comprising a power supply connected to a Hall sensor of the handlebar. The handlebar rotation control device is used to fix the handlebar and rotate the handlebar. The data acquisition recorder is connected to the Hall sensor input terminal of the handlebar to collect the output voltage signal value of the Hall sensor. And the host computer is connected to the data acquisition recorder; The handlebar rotation control device rotates the handlebar to a preset angle at a constant speed, and the data acquisition recorder continuously collects the voltage signal value output by the Hall sensor on the handlebar at specific intervals. The host computer obtains the voltage linear spectrum and / or table data based on the signal value obtained by the data acquisition recorder.

[0006] Preferably, the handlebar twisting control device is equipped with a parameter setting controller, which has A handlebar twisting speed setting module is used to set the twisting speed of the handlebar; And a handlebar twisting angle setting module is used to set the twisting angle of the handlebar.

[0007] Preferably, the interval time for the data acquisition recorder to collect the output voltage signal value of the Hall sensor is adjustable.

[0008] Preferably, the handlebar rotation control device includes a frame, a dynamic clamp movably engaged with the frame, and a fixed clamp fixed on the frame. The handle of the handlebar is fixed on the dynamic clamp. The dynamic clamp is connected to a driving motor that drives the dynamic clamp to rotate on the frame. The motor drives the handle of the handlebar to rotate via the dynamic clamp. The head seat of the handlebar is fixed on the fixed clamp.

[0009] Preferably, the fixed fixture includes a supporting mandrel and a fixing chuck, the supporting mandrel is axially inserted into the hollow cavity of the head seat of the handlebar, the head seat of the handlebar is supported on the supporting mandrel, and the fixing chuck is arranged on the frame in an adjustable position along the radial direction of the supporting mandrel, and the fixing chuck is radially pressed on the head seat of the handlebar.

[0010] Preferably, a chuck movable seat is provided on the frame, and the chuck movable seat is arranged on the frame so that its axial position can be adjusted along the supporting mandrel, and the supporting mandrel and the fixed chuck are installed on the chuck movable seat.

[0011] By adopting the above technical solution, a linear graph composed of the voltage signal values ​​when the throttle is rotated at a certain speed can be obtained, and the consistency and stability of the output signal can be judged and analyzed; thereby providing a dimension for throttle performance detection and ensuring the reliability of throttle quality.

[0012] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a principle block diagram of the electric vehicle handlebar linear performance detection system of the present invention; Figure 2 It is a structural schematic diagram of the handlebar twisting control device of the present invention; Figure 3a Voltage linear spectrum and voltage table data obtained for detection Figure 1 ; Figure 3b Voltage linear spectrum and voltage table data obtained for detection Figure 2 . DETAILED DESCRIPTION

[0014] See attached Figure 1 and attached Figure 2The present invention discloses a method for detecting the linear performance of an electric vehicle throttle. The input end of the Hall sensor on the throttle 2 is connected to the power supply 1, the throttle is rotated at a constant speed to a preset angle, the voltage signal value output by the Hall sensor on the throttle 2 is continuously collected at a specific interval, and a voltage linear graph or / and table data is drawn according to the voltage signal value. The specific values ​​of the constant speed value, the preset angle value and the specific interval time value of rotating the throttle can be set according to needs.

[0015] Based on the above method, the present invention designs a linear performance detection system for an electric vehicle handlebar, including a power supply 1, a handlebar twisting control device 3, a data acquisition recorder 4 and a host computer 5. The power supply 1 is connected to the Hall sensor of the handlebar 2 to provide input power for the handlebar 2. The handlebar twisting control device is used to fix the handlebar 2 and twist the handlebar 2. The data acquisition recorder 4 is connected to the input end of the Hall sensor of the handlebar 2. The data acquisition recorder 4 is used to collect the output voltage signal value of the Hall sensor. The host computer 5 is communicatively connected with the data acquisition recorder 4. The handlebar twisting control device twists the handlebar 2 to a preset angle at a constant speed. The handlebar twisting control device is configured with a parameter setting controller 31. The parameter setting controller 31 has a handlebar turning speed setting module for setting the speed of turning the handlebar 2 and a handlebar turning angle setting module for setting the angle of turning the handlebar 2. In this way, when in use, the user can set the speed and angle parameters of the handlebar according to his own needs, so as to achieve the required detection content. The data acquisition recorder 4 continuously collects the voltage signal value output by the Hall sensor on the handlebar 2 at a specific interval, such as using an interval of 0.2 to collect the voltage signal value. The interval time for the data acquisition recorder to collect the voltage signal value output by the Hall sensor is adjustable. The host computer obtains the voltage linear spectrum or / and table data with the signal value obtained by the data acquisition recorder.

[0016] In this specific embodiment, Figure 2As shown, the handlebar screwing control device 3 includes a frame 32, a dynamic clamp 33 movably matched with the frame 32, and a fixed clamp 34 fixed on the frame 32. The grip 21 of the handlebar 2 is fixed on the dynamic clamp 33. The dynamic clamp 33 is connected to a driving motor 35 for driving the dynamic clamp 33 to rotate on the frame 32. The motor 35 drives the grip 21 of the handlebar 2 to rotate through the dynamic clamp 33. The head seat 22 of the handlebar 2 is fixed on the fixed clamp 34. In this way, the grip of the handlebar 2 is screwed by the driving motor 35. Under the guidance of the essential spirit of the invention, those skilled in the art can also use other driving forms to screw the handlebar according to the prior art, such as the technical solution of using a cylinder or electric cylinder in combination with a crank rocker mechanism, the telescopic combination of the cylinder or electric cylinder in combination with the crank rocker mechanism to shake the grip of the handlebar, or the technical solution of the cylinder in combination with a gear rack mechanism. However, the use of a driving motor for driving has a simple structure, reliable and stable operation, and is easy to control. The movable clamp 33 includes a main holding shaft petal 331 and a secondary holding shaft petal 332 . The secondary holding shaft petal 332 is buckled on the main holding shaft petal 331 to hold and fix it on the grip end of the turning handle 2 .

[0017] To further ensure that the throttle is installed firmly and reliably, the fixed fixture 34 includes a support mandrel 341 and a fixed chuck 342. The support mandrel 341 is axially inserted into the hollow cavity of the head seat 22 of the throttle 2. The head seat 22 of the throttle 2 is supported on the support mandrel 341. The fixed chuck 342 is adjustable in position on the frame 32 along the radial direction of the support mandrel 341. The fixed chuck 342 is radially pressed against the head seat 22 of the throttle 2. In this specific embodiment, the fixed chuck 342 is threadedly screwed on the frame by the bolt 3421. Of course, the fixed chuck can also be installed on the air pipe arm of the cylinder to achieve clamping, or the fixed chuck diameter nut screw mechanism cooperates with the motor to be installed on the bracket, etc. The frame 32 is provided with a chuck movable seat 343, which is adjustable along the axial position of the support mandrel 341 on the frame 32. Specifically, a positioning guide groove is provided on the frame 32, and a bolt fixing hole is provided in the positioning guide groove. A strip hole 3431 is provided on the chuck movable seat 343, and a locking bolt 3432 is inserted into the strip hole 3431. The locking bolt 3432 is screwed on the bolt fixing hole. In this way, the position adjustment of the chuck movable seat is completed by loosening the locking bolt, that is, sliding the chuck movable seat along the positioning guide groove, and then tightening the locking bolt to lock the chuck movable seat on the frame. The support mandrel and the fixed chuck are installed on the chuck movable seat. This facilitates the installation of the fixed fixture and the handlebar, and can achieve the synchronous adjustment of the support mandrel and the fixed chuck to the corresponding position of the head of the handlebar, which is simple and convenient to operate.

[0018] The above system can detect the linear output of the Hall sensor of the throttle, realize intuitive judgment and analysis of the consistency and stability of the output signal; intuitively judge the smoothness of the throttle operation, thereby providing a dimension for throttle performance detection, ensuring the quality reliability and working stability of the throttle; and improving driving safety. Figure 3a and 3b As shown, the linear graph is used to determine the stability of the throttle operation. The straighter the slope, the higher the translation and the better the quality. Figure 3b The blue line in the figure is zigzag in the middle, indicating poor stability.

Claims

1. A method for detecting the linear performance of an electric vehicle handlebar, connecting the input end of a Hall sensor on the handlebar to a power source, rotating the handlebar to a preset angle at a constant speed, continuously collecting the voltage signal value output by the Hall sensor on the handlebar at specific intervals, and drawing a voltage linear graph or / and table data based on the voltage signal value.

2. A linear performance detection system for electric vehicle handlebars, including a power supply connected to a Hall sensor of the handlebars, The handlebar rotation control device is used to fix the handlebar and rotate the handlebar. The data acquisition recorder is connected to the Hall sensor input terminal of the handlebar to collect the output voltage signal value of the Hall sensor. And the host computer is connected to the data acquisition recorder; The handlebar rotation control device rotates the handlebar to a preset angle at a constant speed, and the data acquisition recorder continuously collects the voltage signal value output by the Hall sensor on the handlebar at specific intervals. The host computer obtains the voltage linear spectrum and / or table data based on the signal value obtained by the data acquisition recorder.

3. The electric vehicle throttle linear performance detection system according to claim 2, characterized in that: The handlebar twisting control device is equipped with a parameter setting controller, which has A handlebar twisting speed setting module is used to set the twisting speed of the handlebar; And a handlebar twisting angle setting module is used to set the twisting angle of the handlebar.

4. The electric vehicle throttle linear performance detection system according to claim 2, characterized in that: The interval time for the data acquisition recorder to collect the output voltage signal value of the Hall sensor is adjustable.

5. The electric vehicle throttle linear performance detection system according to claim 2, characterized in that: The handlebar twisting control device includes a frame, a dynamic clamp movably engaged with the frame, and a fixed clamp fixed on the frame. The handle of the handlebar is fixed on the dynamic clamp. The dynamic clamp is connected to a driving motor that drives the dynamic clamp to rotate on the frame. The motor drives the handle of the handlebar to rotate via the dynamic clamp. The head seat of the handlebar is fixed on the fixed clamp.

6. The electric vehicle throttle linear performance detection system according to claim 5, characterized in that: The fixed fixture includes a supporting core shaft and a fixing chuck. The supporting core shaft is axially inserted into the hollow cavity of the head seat of the handlebar. The head seat of the handlebar is supported on the supporting core shaft. The fixing chuck is arranged on the frame in an adjustable position along the radial direction of the supporting core shaft. The fixing chuck is radially pressed on the head seat of the handlebar.

7. The electric vehicle throttle linear performance detection system according to claim 6, characterized in that: The frame is provided with a chuck movable seat, which is adjustable along the axial position of the supporting mandrel on the frame, and the supporting mandrel and the fixed chuck are installed on the chuck movable seat.

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