Electric vehicle rotating handle device
阅读说明:本技术 一种电动车转把装置 (Electric vehicle rotating handle device ) 是由 姜亚军 姜刚 王绡 邵安冬 于 2020-07-21 设计创作,主要内容包括:本发明实施例公开了一种电动车转把装置,该装置包括:转动组件、固定组件和电机控制器;转动组件上设置有一磁铁;固定组件上设置有第一霍尔元件和第二霍尔元件,转动组件嵌套在固定组件内且相对于固定组件转动,使磁铁相对于第一霍尔元件和第二霍尔元件移动,第一霍尔元件感应磁铁的磁场信号以产生第一电压信号,第二霍尔元件感应磁铁的磁场信号以产生第二电压信号;电机控制器用于检测到第一电压信号和第二电压信号满足预设电压规则时,根据第一电压信号或第二电压信号调节电机转速。本发明实施例,采用双霍尔元件实现调速,根据两个霍尔电压参数值判断转把需求信号是否可靠,具有更强的抗干扰性、稳定性和安全性。(The embodiment of the invention discloses a handle rotating device of an electric vehicle, which comprises: the device comprises a rotating assembly, a fixing assembly and a motor controller; a magnet is arranged on the rotating component; the fixed assembly is provided with a first Hall element and a second Hall element, the rotating assembly is nested in the fixed assembly and rotates relative to the fixed assembly, so that the magnet moves relative to the first Hall element and the second Hall element, the first Hall element induces a magnetic field signal of the magnet to generate a first voltage signal, and the second Hall element induces the magnetic field signal of the magnet to generate a second voltage signal; and the motor controller is used for adjusting the rotating speed of the motor according to the first voltage signal or the second voltage signal when detecting that the first voltage signal and the second voltage signal meet a preset voltage rule. According to the embodiment of the invention, the speed regulation is realized by adopting the double Hall elements, whether the handle turning demand signal is reliable or not is judged according to the two Hall voltage parameter values, and the anti-interference performance, the stability and the safety are stronger.)
1. An electric vehicle handle device, comprising: the device comprises a rotating assembly, a fixing assembly and a motor controller;
a magnet is arranged on the rotating component;
the fixed assembly is provided with a first Hall element and a second Hall element, the rotating assembly is nested in the fixed assembly and rotates relative to the fixed assembly, so that the magnet moves relative to the first Hall element and the second Hall element, the first Hall element induces the magnetic field signal of the magnet to generate a first voltage signal, and the second Hall element induces the magnetic field signal of the magnet to generate a second voltage signal;
the motor controller is used for adjusting the rotating speed of the motor according to the first voltage signal or the second voltage signal when detecting that the first voltage signal and the second voltage signal meet a preset voltage rule.
2. The twist grip device for electric vehicles according to claim 1, wherein the hall element comprises a positive electrode connected to the positive electrode lead, a negative electrode connected to the negative electrode lead, and a signal terminal connected to the signal transmission line;
the motor controller comprises a power supply unit, a signal processing unit and a motor driving unit, wherein the power supply unit supplies power to the Hall element through the positive lead and the negative lead, the signal processing unit respectively acquires the first voltage signal and the second voltage signal through two signal transmission lines, a speed change instruction is generated when the two voltage signals are detected to meet a preset voltage rule, and the motor driving unit adjusts the rotating speed according to the speed change instruction.
3. The handle apparatus of the electric vehicle as claimed in claim 2, wherein the first hall element and the second hall element are disposed adjacent to each other at a first side or a second side of the magnet, and the magnet is rotated in a direction the same as or opposite to a direction in which the first side of the magnet is directed to the second side of the magnet.
4. The electric vehicle handle transferring device of claim 3, wherein the signal processing unit is configured to generate the gear shifting command according to the first voltage signal when detecting that a voltage difference value between the first voltage signal and the second voltage signal is within a preset difference range.
5. The electric vehicle twist grip apparatus according to claim 2, wherein said first hall element is located on a first side of said magnet and said second hall element is located on a second side of said magnet, said magnet being rotated in the same direction or in an opposite direction to the direction in which said first side of said magnet is directed toward said second side of said magnet.
6. The electric vehicle handle transferring device according to claim 5, wherein the signal processing unit is configured to generate the speed change command according to the first voltage signal when detecting that both the voltage change rate of the first voltage signal and the voltage change rate of the second voltage signal satisfy a second voltage preset rule.
7. The handle rotating device for the electric vehicle as claimed in claim 2, wherein the first hall element and the second hall element are spaced apart and located on a first side or a second side of the magnet, the second hall element is away from the magnet relative to the first hall element, and the magnet rotates in the same direction or in an opposite direction to the direction in which the first side of the magnet points to the second side of the magnet.
8. The electric vehicle handle rotating device according to claim 7, wherein the signal processing unit is configured to generate the gear shift command according to the first voltage signal when detecting that a voltage proportional deviation between the first voltage signal and the second voltage signal is within a deviation preset range.
9. The twist grip apparatus for electric vehicles according to claim 1, further comprising: an alarm unit;
the alarm unit is electrically connected with the motor controller, and the motor controller is used for generating a fault alarm signal to enable the alarm unit to carry out handle turning fault alarm when detecting that the first voltage signal and/or the second voltage signal do not meet the preset voltage rule.
Technical Field
The embodiment of the invention relates to the technical field of electric vehicles, in particular to a rotating handle device of an electric vehicle.
Background
At present, the electric vehicle industry develops rapidly, and the electric vehicle has various types, such as two-wheeled electric bicycles, light motorcycles and electric motorcycles, three-wheeled electric vehicles and four-wheeled electric vehicles, and the market share is very high. The electric vehicle adopts a handle to regulate the speed. When the handle rotates, the Hall element integrated in the handle detects the change of the magnetic field and outputs a corresponding voltage signal, so that the electric vehicle controller realizes speed regulation.
However, the electric vehicle based on the speed regulation structure has signal transmission errors under interference, and the electric vehicle controller receives wrong hall voltage signals, so that the electric vehicle controller makes wrong judgment, generates wrong actions and affects driving safety.
Disclosure of Invention
The embodiment of the invention provides a rotating handle device of an electric vehicle, which aims to solve the problem of low anti-interference performance of the conventional rotating handle.
The embodiment of the invention provides a rotating handle device of an electric vehicle, which comprises: the device comprises a rotating assembly, a fixing assembly and a motor controller;
a magnet is arranged on the rotating component;
the fixed assembly is provided with a first Hall element and a second Hall element, the rotating assembly is nested in the fixed assembly and rotates relative to the fixed assembly, so that the magnet moves relative to the first Hall element and the second Hall element, the first Hall element induces the magnetic field signal of the magnet to generate a first voltage signal, and the second Hall element induces the magnetic field signal of the magnet to generate a second voltage signal;
the motor controller is used for adjusting the rotating speed of the motor according to the first voltage signal or the second voltage signal when detecting that the first voltage signal and the second voltage signal meet a preset voltage rule.
Furthermore, the Hall element comprises an anode connected with the anode lead, a cathode connected with the cathode lead and a signal end connected with the signal transmission line;
the motor controller comprises a power supply unit, a signal processing unit and a motor driving unit, wherein the power supply unit supplies power to the Hall element through the positive lead and the negative lead, the signal processing unit respectively acquires the first voltage signal and the second voltage signal through two signal transmission lines, a speed change instruction is generated when the two voltage signals are detected to meet a preset voltage rule, and the motor driving unit adjusts the rotating speed according to the speed change instruction.
Further, the first hall element and the second hall element are arranged in close proximity and located on the first side or the second side of the magnet, and the rotation direction of the magnet is the same as or opposite to the direction in which the first side of the magnet points to the second side of the magnet.
Further, the signal processing unit is configured to generate the speed change instruction according to the first voltage signal when detecting that a voltage difference between the first voltage signal and the second voltage signal is within a preset difference range.
Further, the first hall element is located on a first side of the magnet, the second hall element is located on a second side of the magnet, and a rotation direction of the magnet is the same as or opposite to a direction in which the first side of the magnet points to the second side of the magnet.
Further, the signal processing unit is configured to generate the speed change instruction according to the first voltage signal when detecting that both the voltage change rate of the first voltage signal and the voltage change rate of the second voltage signal satisfy a second voltage preset rule.
Further, the first hall element and the second hall element are arranged at intervals and are located on the first side or the second side of the magnet, the second hall element is far away from the magnet relative to the first hall element, and the rotation direction of the magnet is the same as or opposite to the direction in which the first side of the magnet points to the second side of the magnet.
Further, the signal processing unit is configured to generate the speed change instruction according to the first voltage signal when detecting that a voltage proportional deviation between the first voltage signal and the second voltage signal is within a deviation preset range.
Further, the electric vehicle handle device further comprises: an alarm unit;
the alarm unit is electrically connected with the motor controller, and the motor controller is used for generating a fault alarm signal to enable the alarm unit to carry out handle turning fault alarm when detecting that the first voltage signal and/or the second voltage signal do not meet the preset voltage rule.
In the embodiment of the invention, the rotating component rotates, the first Hall element induces the magnetic field signal of the magnet to generate a first voltage signal, and the second Hall element induces the magnetic field signal of the magnet to generate a second voltage signal; and when detecting that the first voltage signal and the second voltage signal meet a preset voltage rule, the motor controller adjusts the rotating speed of the motor according to the first voltage signal or the second voltage signal. In the embodiment of the invention, the speed regulation is realized by adopting the double Hall elements, the speed regulation is carried out only if the voltage signals or voltage related data of the double Hall elements meet the preset voltage rule, otherwise, the corresponding operation is not carried out, so that whether the handle turning demand signal is reliable or not is judged according to the two Hall voltage parameter values, and the anti-interference performance, the stability and the safety are stronger.
Drawings
To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description, although being some specific embodiments of the present invention, can be extended and extended to other structures and drawings by those skilled in the art according to the basic concepts of the device structure, the driving method and the manufacturing method disclosed and suggested by the various embodiments of the present invention, without making sure that these should be within the scope of the claims of the present invention.
Fig. 1 is a schematic view of a twist grip device of an electric vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the connection between the motor controller and the Hall element according to the embodiment of the invention;
FIG. 3 is a schematic view of the maximum limit position of the handle device of the electric vehicle according to the embodiment of the invention;
FIG. 4 is a schematic view of another handle device for an electric vehicle according to an embodiment of the present invention;
FIG. 5 is a schematic view of a handle device for an electric vehicle according to another embodiment of the present invention;
fig. 6 is a circuit structure diagram of an electric vehicle handle device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the basic idea disclosed and suggested by the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, a schematic view of a twist grip device of an electric vehicle according to an embodiment of the present invention is shown. The electric vehicle rotating handle device provided by the embodiment is formed by adopting a software and/or hardware structure and is configured in an electric vehicle, the electric vehicle can be any electric vehicle integrated with a rotating handle, such as an electric bicycle, an electric motorcycle, an electric tricycle, an electric quadricycle and the like, and the rotating handle can be a handle or a turntable. It is understood that the handle device comprises a handle and a relevant control component electrically connected with the handle, and the handle and the relevant control component can be integrated together or separately arranged without particularly limiting the structural position. Fig. 2 is a schematic view of the connection between the motor controller and the hall element, and fig. 3 is a schematic view of another handle device for an electric vehicle.
The electric motor car that this embodiment provided changes handle device includes: the device comprises a
In this embodiment, the electric motor car is changeed the handle device and is included
It can be understood that the opening range of the rotating handle is set to be 0-60 degrees; setting the left end face of the
In this embodiment, a
It should be noted that if the magnetic field signal sensed by the first hall element and/or the second hall element changes abruptly due to the external magnetic interference, the output first voltage signal and/or the output second voltage signal no longer changes linearly.
The
The selectable Hall element comprises an anode connected with the anode lead, a cathode connected with the cathode lead and a signal end OUT connected with the signal transmission line; the
The motor device comprises a
It should be noted that after the positions of the
In this embodiment, the motor rotation speed is set to be associated with the first voltage data, and is adjusted according to the first voltage signal, and the association relationship is not changed in subsequent normal use. Alternatively, in other embodiments, the selectable motor speed is associated with the second voltage data and adjusted according to the second voltage signal, with the association remaining in normal subsequent use.
In actual use, the
the
As described above, if the voltage signal generated by at least one hall element suddenly changes and does not satisfy the preset voltage rule when the motor is disturbed or has a fault, the motor controller may determine that an abnormality such as disturbance or fault occurs according to the signals of the two hall elements. Specifically, the change rule of the first voltage signal output by the
In this embodiment, the rotating assembly rotates, the first hall element senses a magnetic field signal of the magnet to generate a first voltage signal, and the second hall element senses a magnetic field signal of the magnet to generate a second voltage signal; and when detecting that the first voltage signal and the second voltage signal meet a preset voltage rule, the motor controller adjusts the rotating speed of the motor according to the first voltage signal or the second voltage signal. In the embodiment, the speed regulation is realized by adopting the double Hall elements, the speed regulation is only carried out if the voltage signals or the voltage related data of the double Hall elements meet the preset voltage rule, otherwise, the corresponding operation is not carried out, so that whether the handle transferring demand signal is reliable or not is judged according to the two Hall voltage parameter values, and the anti-interference performance, the stability and the safety are higher.
Illustratively, based on the above technical solution, as shown in fig. 1 and 3, the
Referring to fig. 1 and 3, in an accelerating state of the electric vehicle, the
The two Hall sensors are arranged at two ends of the magnet, so that two Hall voltage signals output by the two Hall sensors change from large to small and from small to large, and the difference of the change rates of the two Hall voltages at any moment is small and almost consistent under normal conditions, so that whether interference exists can be judged by judging whether the voltage change rates of the two Hall voltage signals are consistent. If the speed is not consistent with the preset speed, the motor controller gives a speed change command, and if the speed is not consistent with the preset speed, the motor controller reports a fault to the motor controller, so that the speed is prevented from being disturbed and changed due to other interference. If the handle turning device is interfered or has a fault, the voltage signal generated by the first Hall element changes suddenly, and/or the voltage signal generated by the second Hall element changes suddenly, so that the voltage change rate difference of the two Hall voltage signals is large.
In actual use, the
If the first voltage signal is in a curve change, a linear increase or a discrete state change and/or the second voltage signal is in a curve change, a linear decrease or a discrete state change in the current acceleration state, the signal processing unit detects that the voltage change rate of the first voltage signal and the voltage change rate of the second voltage signal do not meet the voltage preset rule in the acceleration state. At the moment, the fact that the electric vehicle is subjected to external interference or faults can be judged, the signal processing unit cannot produce speed change instructions, and then the motor does not change the speed and keeps running at the current speed.
In this embodiment, speed regulation is realized by using two hall elements, the two hall sensors transmit a voltage signal Ua and Ub respectively, the voltage change rates of the two voltage signals both satisfy the voltage change rule under normal conditions, and when a rotating handle is interfered or works abnormally, at least one of Ua and Ub does not satisfy the voltage change rule. In actual work, a motor controller such as an MCU receives Ua and Ub, and if a voltage signal meets a voltage change rule of the motor controller, the MCU adjusts the speed correspondingly according to a Hall voltage signal of the Ua; otherwise, the MCU judges that the handle is in failure and does not perform corresponding action any more. In conclusion, the double-Hall speed regulation can judge whether the handle turning demand signal is reliable or not according to two Hall voltage parameter values, and the mode has stronger anti-interference performance.
Illustratively, on the basis of the above technical solution, as shown in fig. 4, the
The
If the handle device is interfered or fails, the voltage signal generated by the first Hall element changes suddenly, and/or the voltage signal generated by the second Hall element changes suddenly.
In actual use, the
In this embodiment, speed regulation is realized by using two hall elements, two hall sensors transmit a voltage signal Ua and Ub respectively, and the two voltage signals are in a certain difference relationship under normal conditions, for example, Ub-Ua is not greater than V0, and when a rotating handle is interfered or works abnormally, the difference between Ua and Ub is too large. In actual work, a motor controller such as an MCU receives Ua and Ub and compares the Ua and the Ub, and if the voltage difference value is less than or equal to V0, the MCU adjusts the speed correspondingly according to the Hall voltage signal of the Ua; when the voltage difference is larger than V0, the MCU judges the handle is faulty and does not perform corresponding action any more. In conclusion, the double-Hall speed regulation can judge whether the handle turning demand signal is reliable or not according to two Hall voltage parameter values, and the mode has stronger anti-interference performance.
Illustratively, on the basis of the above technical solution, as shown in fig. 5, the
The first side of the
Under the accelerating state of the electric vehicle, the
If the handle rotating device is interfered or has a fault, the voltage signal generated by the first Hall element changes suddenly, and/or the voltage signal generated by the second Hall element changes suddenly, so that the voltage ratio of the first Hall element and the second Hall element also changes suddenly, and the deviation exceeds the preset deviation range.
In actual use, the
In this embodiment, speed regulation is realized by using two hall elements, two hall sensors respectively transmit a voltage signal Ua and Ub, and the two voltage signals are in a certain proportional relationship under normal conditions, for example, Ub is approximately equal to 2Ua, and when a rotating handle is interfered or works abnormally, the voltage correlation between Ua and Ub is reduced. In actual work, a motor controller such as an MCU receives Ua and Ub and compares them, and if the voltage ratio is within a preset reference range (e.g., ± 10%), the MCU adjusts the speed accordingly according to the hall voltage signal of Ua, e.g., Ub is 2.05 Ua; when the voltage ratio deviation exceeds a deviation preset range (such as +/-10%), the MCU judges that the handle is in fault and does not perform corresponding action any more, and if Ub is 3.5 Ua. In conclusion, the double-Hall speed regulation can judge whether the handle turning demand signal is reliable or not according to two Hall voltage parameter values, and the mode has stronger anti-interference performance.
Exemplarily, on the basis of the above technical solution, the optional electric vehicle twist grip device shown in fig. 6 further includes: an
In this embodiment, when the
The electric vehicle rotating handle device provided by any embodiment has the advantages of being high in stability and anti-interference performance, the situation that the motor rotates due to standing in place is avoided, and the problem that the speed changes continuously due to the rotation of the motor is also avoided.
It can be understood that the electric vehicle provided by any of the above embodiments can also be an electric vehicle, the rotating handle device can be regarded as an accelerator control structure of the electric vehicle, double hall sensors are adopted, the two hall sensors detect the rotation angle change of the magnetic field simultaneously, and the output hall voltage signals form two paths of pedal position voltage signals after being amplified, filtered, translated, limited and the like by the signal processing circuit. The electronic control unit ECU of the electric automobile can judge whether the pedal position sensor works normally by comparing the correlation of the two paths of pedal position voltage signals. The accuracy of voltage signal is improved, and variable speed control is more accurate, and the interference killing feature is stronger.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
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