阅读说明：本技术 重力感应控制的电动四轮滑板车及其控制方法 (Electric four-wheel scooter controlled by gravity induction and control method thereof ) 是由 陆海峰 蔡炜桢 于 2019-11-22 设计创作，主要内容包括：本发明公开了一种重力感应控制的电动四轮滑板车及其控制方法,其中,电动四轮滑板车包括：轮桥总成组件、重力感应组件和滑板板面总成组件,其中,重力感应组件设置于轮桥总成组件上,用于感测作用其上的压力,输出控制信号；滑板板面总成组件设置于重力感应组件上,以根据控制信号控制轮桥总成组件驱动电动四轮滑板车行驶。该电动四轮滑板车可以使电动滑板脱离现有无线遥控控制方式,满足操作者仅通过人体自身重心来促使四轮滑板加速、减速或刹车,提升用户使用体验,简单易实现。(The invention discloses an electric four-wheel scooter controlled by gravity induction and a control method thereof, wherein the electric four-wheel scooter comprises: the device comprises a wheel axle assembly component, a gravity sensing component and a skateboard deck assembly component, wherein the gravity sensing component is arranged on the wheel axle assembly component and used for sensing pressure acting on the gravity sensing component and outputting a control signal; the skateboard deck assembly component is arranged on the gravity sensing component to control the wheel axle assembly component to drive the electric four-wheel scooter to run according to the control signal. This electronic four-wheel scooter can make electronic slide break away from current wireless remote control mode, satisfies the operator and only makes four-wheel slide accelerate, slow down or brake through human self focus, promotes the user and uses experience, simple easy realization.)

1. The utility model provides an electric four-wheel scooter of gravity induction control which characterized in that includes:

a wheel axle assembly component;

the gravity sensing assembly is arranged on the wheel axle assembly and is used for sensing pressure acting on the wheel axle assembly and outputting a control signal; and

the skateboard deck assembly component is arranged on the gravity sensing component and controls the wheel axle assembly component to drive the electric four-wheel scooter to run according to the control signal.

2. The gravity-sensing controlled electric four-wheel scooter of claim 1, wherein the wheel axle assembly component, the gravity-sensing component and the skateboard deck assembly component are fastened by a screw and nut kit.

3. The gravity-sensing controlled electric four-wheel scooter of claim 1, wherein the skateboard deck assembly comprises:

a battery pack;

a panel provided with a rectangular inner groove for accommodating the battery pack;

the abrasive paper is arranged on the plate surface;

the controller is connected with the battery pack, and the controller and the battery pack are sealed in the rectangular inner grooves of the board surface.

4. The gravity-sensing controlled electric four-wheel scooter according to claim 3, wherein the maximum height of the battery pack and the controller is smaller than the depth of the rectangular inner groove.

5. The gravity-sensing controlled electric four-wheel scooter of claim 1, wherein the wheel axle assembly components comprise:

a skateboard bridge;

and the central shaft of the at least one hub motor corresponds to the sliding plate bridge and is locked by a nut.

6. The gravity-sensing controlled electric four-wheel scooter of claim 3, wherein the gravity-sensing assembly comprises:

fine tuning a motor;

the base is internally provided with two semicircular grooves for arranging the fine tuning motor;

the groove of the fine adjustment cam is arranged corresponding to the bulge of the fine adjustment motor so as to synchronously rotate with the rotating main shaft of the fine adjustment motor;

the pressure sensor is arranged above the fine adjustment cam and used for outputting a pressure signal to the controller when a front end strain gauge of the pressure sensor is subjected to pressure;

the return spring is arranged above the pressure sensor, and one side of the return spring is arranged corresponding to the small hole of the pressure sensor;

the pressure trigger is arranged at the bottom of the surface of the sliding plate and is right above the working groove of the pressure sensor so as to move relatively in the working groove;

the distance sensor is arranged on one side of the base;

the distance sensor patch is arranged at the bottom of the board and right above the transmitter and the receiver of the distance sensor, so that the transmitting signal of the transmitter is reflected to the receiver after the surface of the distance sensor patch, and the relative distance between the distance sensor and the sensor patch is detected.

7. The gravity-sensing controlled electric four-wheel scooter of claim 6, wherein the operating angle range of the fine adjustment cam is 0 ° -90 °, wherein the 0 ° position is that the tip of the cam points in the horizontal direction, and the 90 ° position is that the tip of the cam points in the vertical upward direction.

8. The gravity-sensing controlled electric four-wheel scooter of claim 6, wherein the pressure trigger is an outwardly convex half-ball.

9. The gravity-sensing controlled electric four-wheel scooter according to claim 6, wherein the distance sensor is fastened to the base by bolts.

10. A method of controlling a gravity-fed electric four-wheel scooter as claimed in any one of claims 1-9, comprising the steps of:

acquiring a first pressure value detected by a pressure sensor arranged on a base at the front end of the electric four-wheel scooter and a second pressure value detected by a pressure sensor arranged on a base at the rear end of the electric four-wheel scooter;

when the first pressure value is larger than the second pressure value, controlling the electric four-wheel scooter to accelerate according to the change degree of a front end strain gauge in a pressure sensor at the front end of the electric four-wheel scooter; and

when the first pressure is smaller than the second pressure, the electric four-wheel scooter is controlled to decelerate or brake according to the change degree of a front end strain gauge in a pressure sensor at the rear end of the electric four-wheel scooter.

Technical Field

The invention relates to the technical field of electric drive four-wheel vehicles, in particular to an electric four-wheel scooter controlled by gravity induction and a control method thereof.

Background

Along with the popularization of skateboard movement, the electric skateboard becomes a new type of sports device in skateboard movement, and the electric skateboard adopts the battery and the motor to solve the traditional pedal-driven mode for skateboards, so that a driver can experience the pleasure of the traditional skateboard in speed drop on level roads or on slopes. However, the existing electric skateboard generally adopts wireless remote control to control the acceleration or reduction of the electric skateboard, and is easily interfered by signals in occasions with more signal sources; in addition, when the handheld remote controller slides, the hands of an operator must be held by the hand to carry the remote controller, and the hands cannot carry or carry other articles, so that the use experience of the operator is reduced, and the problem is solved.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, one object of the present invention is to provide a gravity sensing controlled electric four-wheel scooter, which can make the electric skateboard separate from the existing wireless remote control mode, and meet the requirement that an operator only uses the gravity center of the human body to accelerate, decelerate or brake the four-wheel skateboard, thereby improving the user experience and being simple and easy to implement.

Another objective of the present invention is to provide a control method for a gravity sensing controlled electric four-wheel scooter.

To achieve the above object, an embodiment of the present invention provides a gravity sensing controlled electric four-wheel scooter, including: a wheel axle assembly component; the gravity sensing assembly is arranged on the wheel axle assembly and is used for sensing pressure acting on the wheel axle assembly and outputting a control signal; the skateboard deck assembly component is arranged on the gravity sensing component and controls the wheel axle assembly component to drive the electric four-wheel scooter to run according to the control signal.

The gravity induction controlled electric four-wheel scooter provided by the embodiment of the invention can enable an operator to accelerate, decelerate or brake the four-wheel scooter only through the gravity center change of the human body, liberate the hands of the operator to a certain extent, judge the transfer and change of the gravity center of the human body by detecting the slide plate deformation caused by the gravity of the human body acting on the slide plate panel, and avoid the limitation on the specific stepping position of the operator, so that the electric scooter can be separated from the existing wireless remote control mode, the requirement that the operator accelerates, decelerates or brakes the four-wheel scooter only through the gravity center of the human body is met, the use experience of the user is improved, and the gravity induction controlled electric four-wheel scooter is.

In addition, the gravity sensing controlled electric four-wheel scooter according to the above embodiment of the present invention may further have the following additional technical features:

further, in one embodiment of the present invention, the wheel axle assembly component, the gravity sensing component and the skateboard deck assembly component are fastened by a screw and nut assembly.

Further, in one embodiment of the present invention, the skateboard deck assembly includes: a battery pack; a panel provided with a rectangular inner groove for accommodating the battery pack; the abrasive paper is arranged on the plate surface; the controller is connected with the battery pack, and the controller and the battery pack are sealed in the rectangular inner grooves of the board surface.

Further, in one embodiment of the present invention, the maximum height of both the battery pack and the controller is less than the depth of the rectangular interior groove.

Further, in one embodiment of the present invention, the wheel axle assembly includes: a skateboard bridge; and the central shaft of the at least one hub motor corresponds to the sliding plate bridge and is locked by a nut.

Further, in one embodiment of the present invention, the gravity sensing assembly comprises: fine tuning a motor; the base is internally provided with two semicircular grooves for arranging the fine tuning motor; the groove of the fine adjustment cam is arranged corresponding to the bulge of the fine adjustment motor so as to synchronously rotate with the rotating main shaft of the fine adjustment motor; the pressure sensor is arranged above the fine adjustment cam and used for outputting a pressure signal to the controller when a front end strain gauge of the pressure sensor is subjected to pressure; the return spring is arranged above the pressure sensor, and one side of the return spring is arranged corresponding to the small hole of the pressure sensor; the pressure trigger is arranged at the bottom of the surface of the sliding plate and is right above the working groove of the pressure sensor so as to move relatively in the working groove; the distance sensor is arranged on one side of the base; the distance sensor patch is arranged at the bottom of the board and right above the transmitter and the receiver of the distance sensor, so that the transmitting signal of the transmitter is reflected to the receiver after the surface of the distance sensor patch, and the relative distance between the distance sensor and the sensor patch is detected.

Further, in one embodiment of the invention, the operating angle of the trimming cam is in the range of 0 ° to 90 °, wherein the 0 ° position is the cam tip pointing in the horizontal direction and the 90 ° position is the cam tip pointing in the vertically upward direction.

Further, in one embodiment of the present invention, the pressure trigger is an outwardly convex dome.

Further, in one embodiment of the present invention, the distance sensor is fastened to the base by a bolt.

In order to achieve the above object, in another aspect, the present invention provides a method for controlling a gravity-sensing-controlled electric four-wheel scooter, as described in the above embodiment, including the steps of: acquiring a first pressure value detected by a pressure sensor arranged on a base at the front end of the electric four-wheel scooter and a second pressure value detected by a pressure sensor arranged on a base at the rear end of the electric four-wheel scooter; when the first pressure value is larger than the second pressure value, controlling the electric four-wheel scooter to accelerate according to the change degree of a front end strain gauge in a pressure sensor at the front end of the electric four-wheel scooter; when the first pressure is smaller than the second pressure, the electric four-wheel scooter is controlled to decelerate or brake according to the change degree of a front end strain gauge in a pressure sensor at the rear end of the electric four-wheel scooter.

The control method of the gravity induction controlled electric four-wheel scooter provided by the embodiment of the invention can enable an operator to accelerate, decelerate or brake the four-wheel scooter only through the change of the gravity center of the human body, liberate the hands of the operator to a certain extent, judge the transfer and change of the gravity center of the human body by detecting the deformation of the skateboard caused by the action of the gravity of the human body on the skateboard panel, and avoid the limitation on the specific treading position of the operator, so that the electric skateboard can be separated from the existing wireless remote control mode, the requirement of the operator on accelerating, decelerating or braking the four-wheel scooter only through the gravity center of the human body is met, the use experience of the user is improved, and the method is simple.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a gravity sensing controlled electric four-wheel scooter according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the construction of the skateboard deck assembly components according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a gravity sensing assembly according to an embodiment of the present invention;

fig. 4 is a flowchart of a control method of a gravity sensing controlled electric four-wheel scooter according to an embodiment of the present invention.

Description of reference numerals:

the gravity sensing controlled electric four-wheel scooter comprises a gravity sensing controlled electric four-wheel scooter 100, a skateboard deck assembly component 1, a deck 11, abrasive paper 12, a battery pack 13, a controller 14, a wheel axle assembly component 2, a skateboard axle 21, at least one in-wheel motor 22, a gravity sensing component 3, a base 31, a fine adjustment motor 32, a fine adjustment cam 33, a pressure sensor 34, a return spring 35, a pressure trigger 36, a distance sensor patch 37, a distance sensor 38, a fixing screw 39 and a screw nut kit 4.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The gravity-sensing-controlled electric four-wheel scooter and the control method thereof according to the embodiments of the present invention will be described with reference to the accompanying drawings, and first, the gravity-sensing-controlled electric four-wheel scooter according to the embodiments of the present invention will be described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a gravity-sensing controlled electric four-wheel scooter according to an embodiment of the present invention.

As shown in fig. 1, the gravity-sensing controlled electric four-wheel scooter 100 includes: the skateboard deck assembly comprises a skateboard deck assembly component 1, a wheel axle assembly component 2 and a gravity sensing component 3.

Wherein, the gravity sensing component 3 is arranged on the wheel axle assembly component 2 and used for sensing the pressure acted on the gravity sensing component and outputting a control signal; the skateboard deck assembly component 1 is arranged on the gravity sensing component 3 to control the wheel axle assembly component 2 to drive the electric four-wheel scooter 100 to run according to the control signal. The electric four-wheel scooter 100 provided by the embodiment of the invention can enable the electric skateboard to be separated from the existing wireless remote control mode, meets the requirement that an operator only promotes the four-wheel skateboard to accelerate, decelerate or brake through the gravity center of the human body, improves the user experience, and is simple and easy to realize.

In one embodiment of the present invention, the skateboard deck assembly 1, the wheel axle assembly 2 and the gravity sensing component 3 are fastened by a screw and nut assembly 4, as shown in fig. 1.

Each component of the gravity sensing controlled electric four-wheel scooter 100 will be described in detail below.

Further, in one embodiment of the present invention, as shown in FIG. 2, the skateboard deck assembly 1 comprises: a board 11, sandpaper 12, a battery pack 13, and a controller 14.

The plate surface 11 is dug with a rectangular inner groove for accommodating the battery pack 13 and the controller 14, the battery pack 13 is formed by connecting the battery pack 13 in series or in parallel through a lead, positive and negative wires are led out from two ends of the battery pack 13 and are connected with the controller 14, the maximum height of the battery pack 13 and the controller 14 is smaller than the depth of the inner groove of the plate surface 11, and the abrasive paper 12 is attached to the plate surface 11 to seal the battery pack and the controller 14 inside the plate surface 11.

Further, in one embodiment of the present invention, as shown in fig. 1, the wheel axle assembly 2 includes: a sled bridge 21 and at least one hub motor 22. Wherein, the central shaft of the hub motor 22 is matched with the sliding plate bridge 21 and locked by a nut.

Further, in one embodiment of the present invention, as shown in fig. 3, the gravity sensing assembly 3 includes: base 31, fine adjustment motor 32, fine adjustment cam 33, pressure sensor 34, return spring 35, pressure trigger 36, distance sensor patch 37, distance sensor 38 and set screw 39.

The base 31 is a shell of the gravity sensing component 3 and is used for accommodating parts, and two semicircular grooves are formed in the base 31 and used for mounting the fine tuning motor 32; the protrusion on the fine adjustment motor 32 is matched with the groove in the fine adjustment cam 33, so that the fine adjustment cam 33 can synchronously rotate with the rotating main shaft of the fine adjustment motor 32, the working angle range of the fine adjustment cam 33 is 0-90 degrees, the 0-degree position is defined as that the tip of the cam points to the horizontal plane direction, and the 90-degree position is defined as that the tip of the cam points to the vertical upward direction; a pressure sensor 34 is arranged above the fine adjustment cam 33, the working part of the pressure sensor 34 is a strain gauge 341 at the front end, and when the strain gauge 341 is pressed, the pressure sensor outputs a pressure signal to the controller 14; a return spring 35 is arranged above the pressure sensor 34, one side of the return spring 35 is in transition fit with a small hole 342 on the pressure sensor 34, when the fine adjustment cam 34 is located at a 0-degree position, the return spring 35 is in a state of being just compressed, when the fine adjustment cam 34 is located at a 90-degree position, the return spring 35 is in a state of being maximally compressed, and the vertical adjustment of the pressure sensor in the vertical direction can be realized by switching different states of the return spring 35 and the fine adjustment cam 33; the pressure trigger 36 is installed at the bottom of the skateboard deck 11 and right above the working groove 343 of the pressure sensor 34, and the pressure trigger 36 is an outwardly convex semi-sphere and can move relatively in the working groove 343; distance sensor 38 is installed to base 31 one side, fasten distance sensor 38 and base 31 through bolt 39, distance sensor paster 37 pastes in slide board face 11 bottom and just is directly over to distance sensor 38's transmitter 381 and receiver 382, and distance sensor 38's transmitter 381 transmission signal reflects receiver 382 to the distance sensor paster surface after, can measure distance sensor 38 and sensor paster 37's relative distance, and then measures the relative distance between pressure sensor 34 front end foil gage 341 and slide board face 11.

The operation of the force-sensing controlled electric four-wheel scooter 100 will be described in detail with reference to fig. 1-3, which will be described as follows:

the energy of the four-wheel skateboard comes from the battery pack 13, the skateboard runs by at least one hub motor 22 of the wheel axle assembly component 2, and after the controller 14 receives the signal sent by the pressure sensor 34 of the gravity sensor component 3, the controller 14 sends a driving signal to the hub motor 22 to realize the acceleration, deceleration or braking of the vehicle.

Because different operators' size, weight differ to some extent, for avoiding the different acceleration control effect inconsistent that cause of weight, so need carry out initialization setting to the gravity response subassembly 3 of slide, the setting scheme is as follows:

when the skateboard is placed on a horizontal road surface, after a main switch at the bottom of the skateboard surface assembly component 1 is pressed, the electric four-wheel scooter 100 enters a starting state, a starting key is pressed for a long time again to enter an initial setting state of the skateboard, the fine adjustment motor 32 adjusts the fine adjustment cam 33 to an initial position of 0 degrees, namely, the relative vertical distance between the pressure sensor 34 and the skateboard surface 11 is at a maximum value, and at the moment, the controller 14 intermittently emits beep and beep sounds, namely, the electric four-wheel scooter successfully enters the initial setting state. At the moment, an operator stands on the surface of the skateboard with two feet statically according to the sliding posture, and if the left foot of the operator stands at the front position of the middle part of the skateboard and the right foot stands at the rear position of the middle part of the skateboard, the operator can slide on the skateboard; when the operator, skateboard and ground are completely stationary and the center of gravity of the body is in the middle of the skateboard deck, the controller 14 begins to count down for 5 seconds, during which 5 seconds the operator needs to keep the person, skateboard and ground still in a completely stationary position. Within the 5 seconds, the skateboard surface 11 is pressed by the self gravity of the human body due to the skateboard surface when the human stands on, and the board surface 11 deforms downwards, so that the relative position between the distance sensor 38 and the distance sensor patch 37 is reduced, namely the relative position between the pressure sensor 34 and the skateboard surface 11 is reduced; after the transmitter 381 of the distance sensor 38 sends a signal to the surface of the distance sensor patch 37 and reflects the signal to the receiver 382 of the distance sensor 38, the relative position information between the distance sensor 38 and the distance sensor patch 37 is transmitted to the controller 14, the controller 14 sends a signal to the fine adjustment motor 32 according to the variation difference of the relative positions between the distance sensor 38 and the distance sensor patch 37, so as to control the fine adjustment motor 32 to rotate and adjust the angle of the fine adjustment cam 33, at this time, the distance between the pressure sensor 34 and the base 31 becomes larger (i.e. the distance between the pressure sensor 34 and the plate surface 11 becomes smaller) due to the upward thrust of the tip of the fine adjustment cam 33 of the pressure sensor 34, and when the working groove 343 of the pressure sensor 34 just contacts the pressure trigger 36, the controller 14 controls the fine adjustment motor 32 to stop rotating and fix the rotating angle at this time, meanwhile, the controller 14 sends out a long-tone 'beep-', namely the initialization setting is completed; from the step "the operator and the sliding plate are completely stationary relative to the ground" to the step "the rotation angle of the adjusting motor 32 stops rotating and is fixed at the time" is within 5 seconds of the countdown (the embodiment of the present invention takes 5 seconds as an example, and a person skilled in the art can set the operation according to actual conditions, and the setting is only taken as an example and is not specifically limited), for the same operator, the initialization setting is performed only during the first operation, the initialization setting is not required again from the second use, and the normal use can be directly performed after the start-up.

After the operator finishes the initialization setting before the first operation, the slide can normally work, wherein, acceleration, deceleration and brake working mode are as follows:

the pressure sensor 34 installed on the base 31 defining the front end of the skateboard is used for accelerating the skateboard, and the pressure sensor 34 installed on the base 31 defining the rear end of the skateboard is used for decelerating and braking the skateboard; assuming that the left foot of an operator stands at the front position of the middle part of the sliding plate and the right foot stands at the rear position of the middle part of the sliding plate; when the gravity center of an operator shifts forwards, that is, the pressure of the left foot on the skateboard deck 11 is greater than the pressure of the right foot on the skateboard deck 11, the downward deformation degree of the front end of the skateboard deck 11 is greater than the rear end of the skateboard deck, and at the moment, the relative position of the pressure trigger 36 also shifts downwards, so that the pressure trigger 36 extrudes the front end strain gauge 341 of the pressure sensor 34, the pressure sensor 34 transmits a deformation signal to the controller 14 due to the deformation, and the acceleration of the skateboard is controlled by the algorithm of the controller 14 according to the change degree of the front end strain gauge 341 of the pressure sensor 34; when an operator needs to decelerate or brake, the operator only needs to shift the gravity center of the human body to the rear end of the skateboard, and the pressure of the right foot on the skateboard surface 11 is greater than the pressure of the left foot on the skateboard surface 11, so that the pressure sensor 34 is triggered to work in the same way as in the acceleration state, and the effects of decelerating and braking are achieved.

To sum up, the gravity sensing controlled electric four-wheel scooter provided by the embodiment of the invention can enable an operator to accelerate, decelerate or brake the four-wheel scooter only through the change of the gravity center of the human body, liberates the hands of the operator to a certain extent, judges the transfer and change of the gravity center of the human body by detecting the deformation of the skateboard caused by the gravity of the human body acting on the skateboard panel, and avoids the limitation on the specific trampling position of the operator, so that the electric skateboard can be separated from the existing wireless remote control mode, the requirement of the operator on accelerating, decelerating or braking the four-wheel scooter only through the gravity center of the human body is met, the user experience is improved, and the gravity sensing controlled electric four-wheel scooter.

Next, a control method of the gravity-sensing controlled electric four-wheel scooter according to the embodiment of the present invention will be described with reference to the accompanying drawings.

Fig. 4 is a flowchart of a control method for a gravity-sensing controlled electric four-wheel scooter according to an embodiment of the present invention.

As shown in fig. 4, the control method of the gravity sensing controlled electric four-wheel scooter of the above embodiment includes the following steps:

in step S401, a first pressure value detected by a pressure sensor mounted on a base at the front end of the electric four-wheel scooter and a second pressure value detected by a pressure sensor mounted on a base at the rear end of the electric four-wheel scooter are obtained;

in step S402, when the first pressure value is greater than the second pressure value, controlling the electric four-wheel scooter to accelerate according to a variation degree of a front end strain gauge in a pressure sensor at a front end of the electric four-wheel scooter;

in step S403, when the first pressure is less than the second pressure, the electric four-wheel scooter is controlled to decelerate or brake according to the degree of change of the front strain gauge in the pressure sensor at the rear end of the electric four-wheel scooter.

It should be noted that the foregoing explanation of the embodiment of the gravity sensing controlled electric four-wheel scooter is also applicable to the control method of the gravity sensing controlled electric four-wheel scooter of this embodiment, and will not be described herein again.

According to the control method of the gravity sensing controlled electric four-wheel scooter provided by the embodiment of the invention, an operator can accelerate, decelerate or brake the four-wheel scooter only through the change of the gravity center of the human body, the hands of the operator are liberated to a certain extent, the transfer and change of the gravity center of the human body are judged by detecting the deformation of the skateboard caused by the gravity of the human body acting on the skateboard panel, and the limitation on the specific trampling position of the operator is avoided, so that the electric skateboard can be separated from the existing wireless remote control mode, the requirement of the operator on accelerating, decelerating or braking the four-wheel scooter only through the gravity center of the human body is met, the use experience of the user is improved, and the control method is.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.