CN115806010A

CN115806010A - Posture adjusting system, posture adjusting method and electric scooter

Info

Publication number: CN115806010A
Application number: CN202111078296.5A
Authority: CN
Inventors: 王彦; 唐益仁
Original assignee: Bosch Automotive Products Changsha Co Ltd
Current assignee: Bosch Automotive Products Changsha Co Ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2023-03-17

Abstract

The present application provides an attitude adjustment system for an electric scooter, comprising: a sensor configured to detect a parameter of the electric scooter during a start-up process and a riding process of the electric scooter; a main control unit configured to determine a motion state of the electric scooter according to the parameter; and a posture adjustment mechanism configured to dynamically adjust a posture of at least one of a body, a steering column, and a footboard of the electric scooter according to a signal from the main control unit. The application also provides an attitude adjustment method for the electric scooter and the electric scooter. The posture adjusting system and the posture adjusting method can dynamically adjust the posture of at least one of the body, the steering column and the pedal of the electric scooter in the riding process and the starting process, so that the riding is safer.

Description

Posture adjusting system, posture adjusting method and electric scooter

Technical Field

The application relates to the field of scooters, in particular to an attitude adjusting system and an attitude adjusting method for an electric scooter and the electric scooter.

Background

Electric scooters currently on the market generally comprise three sets of systems: actuating system (wheel hub motor, machine controller, battery etc.), braking system (front and back dish is stopped, brake motor etc.) and human-computer interaction system (throttle/brake knob, display screen etc.), and its mechanical part mainly includes: a handle, a steering column, a vehicle body, a pedal, a follower wheel, etc.

In the riding process, a driver usually adopts a fixed riding posture that two feet stand on a pedal plate in front and back, but the riding posture needs to be adjusted manually under the conditions of road condition change, emergency braking and the like. If not adjusted in time, it is easily tipped forward, which can be dangerous.

Therefore, there is a need to improve the existing electric scooters to facilitate the adjustment of riding postures and reduce the occurrence of dangerous situations.

Disclosure of Invention

The utility model aims to overcome the not enough of prior art, provide an attitude adjustment system, attitude adjustment method and including this attitude adjustment system's electric scooter for electric scooter to realize adjusting electric scooter's gesture under motion states such as uphill, downhill path and high-speed traveling dynamically, and then the adjustment rides passerby's the gesture of riding, reduces and emptys danger, guarantees the safety of riding.

To this end, according to an aspect of the present application, there is provided an attitude adjustment system for an electric scooter, the electric scooter comprising: a steering column; a vehicle body having a first end pivotally coupled with the steering column; and a footrest pivotally coupled with the vehicle body and disposed proximate a second end of the vehicle body opposite the first end; the attitude adjustment system includes: a sensor configured to detect parameters of the electric scooter during start-up and during riding of the electric scooter; a master control unit configured to determine a motion state of the electric scooter according to the parameter; and a posture adjustment mechanism configured to dynamically adjust a posture of at least one of the vehicle body, the steering column, and the foot pedal according to a signal from the main control unit.

According to another aspect of the present application, there is also provided an attitude adjustment method for an electric scooter including: a steering column; a vehicle body having a first end pivotally coupled with the steering column; and a footrest pivotally coupled with the vehicle body and disposed proximate a second end opposite the first end of the vehicle body; the attitude adjustment method comprises the following steps: the first step is as follows: detecting and judging the motion state of the electric scooter in the starting process and the riding process of the electric scooter; and a second step: dynamically adjusting a posture of at least one of the vehicle body, the steering column, and the footboard according to a motion state of the electric scooter.

According to yet another aspect of the present application, there is also provided an electric scooter comprising: a steering column; a vehicle body having a first end pivotally coupled with the steering column; and a footrest pivotally coupled with the vehicle body and disposed proximate a second end opposite the first end of the vehicle body; wherein at least one of the body, the steering column, and the footrest is configured to be dynamically adjustable in pose during start-up and riding of the electric scooter; wherein the electric scooter further comprises the posture adjustment system described above.

The posture adjusting system and the posture adjusting method for the electric scooter can dynamically adjust the posture of at least one of the body, the steering column and the pedal of the electric scooter in the riding process and the starting process, so that the gravity center position of a rider can be changed, and the riding is safer.

Drawings

Exemplary embodiments of the present application will be described in detail below with reference to the attached drawings, it being understood that the following description of the embodiments is intended to be illustrative of the present application and not limiting of the scope of the present application, and in which:

fig. 1A and 1B are schematic side views of an electric scooter according to an embodiment of the present application, wherein fig. 1A shows the electric scooter in a deployed state and fig. 1B shows the electric scooter in a folded state;

fig. 2 is a schematic block diagram of a stance adjustment system for an electric scooter according to an embodiment of the present application;

fig. 3 is a schematic diagram showing an example of an attitude adjustment mechanism according to an embodiment of the present application;

fig. 4 is a schematic view for explaining posture adjustment of a vehicle body of the electric scooter according to the present application;

fig. 5 is a schematic view for explaining posture adjustment of a footboard of an electric scooter according to the present application;

fig. 6 is a schematic view for explaining riding posture adjustment of a rider of the electric scooter according to the present application.

Fig. 7A and 7B are schematic flow charts of a posture adjustment method for an electric scooter according to an embodiment of the present application, wherein fig. 7A illustrates steps of the posture adjustment method during riding of the electric scooter, and fig. 7B illustrates steps of the posture adjustment method during starting of the electric scooter.

Detailed Description

Preferred embodiments of the present application are described in detail below with reference to examples. However, it should be understood by those skilled in the art that these exemplary embodiments are not meant to limit the present application in any way. Furthermore, the features in the embodiments of the present application may be combined with each other without conflict. In the drawings, other components and steps are omitted for the sake of brevity, but this does not indicate that the posture adjustment system for an electric scooter of the present application and an electric scooter including the posture adjustment system may not include other components, nor does it indicate that the posture adjustment method for an electric scooter of the present application may not include other steps. It should be understood that the size, proportion and number of elements in the drawings are not intended to limit the present application.

The structure of the electric scooter according to the present application will be described with reference to fig. 1A and 1B. Fig. 1A and 1B are schematic side views of an electric scooter according to an embodiment of the present application, wherein fig. 1A shows the electric scooter in a deployed state and fig. 1B shows the electric scooter in a folded state.

As shown in fig. 1A and 1B, the electric scooter of the present application includes a steering column 10, a vehicle body 20, and a footboard 30, wherein a first end (i.e., an upper end) of the vehicle body 20 is pivotally coupled with the steering column 10, and the footboard 30 is pivotally coupled with the vehicle body 20 and disposed adjacent to a second end (i.e., a lower end) opposite to the first end of the vehicle body 20. The first end of the vehicle body 20 may be higher than the second end so as to form a stable triangular structure, however, the present application is not limited thereto. In addition, the electric scooter may further include a handle 12, and the handle 12 is mounted at an upper end of the steering column 10 so that a rider can adjust a direction using the handle 12. The first end of the vehicle body 20 may be provided with a connection mechanism 25 such that the steering column 10 and the handle 12 are coupled within the connection mechanism 25. In addition, the steering column 10 may be configured to be foldable toward the vehicle body 20 (see fig. 1B) or unfoldable away from the vehicle body 20 (see fig. 1A), and the steering column 10 may be provided with a first catch 11, and the first catch 11 may be configured to fix the steering column 10 in the unfolded position when the steering column 10 is unfolded to the maximum extent away from the vehicle body 20, as shown in fig. 1A. Further, the footrest 30 may be configured to be foldable toward the vehicle body 20 (see fig. 1B) or unfoldable away from the vehicle body 20 (see fig. 1A), and the footrest 30 may be provided with a second catch (not shown) configured to secure the footrest 30 in the folded position when the footrest 30 is folded to the maximum extent toward the vehicle body 20, as shown in fig. 1B.

The electric scooter may further include: a follower wheel 13, an in-wheel motor 14 (i.e., a rear wheel), and a motor controller (not shown), the follower wheel 13 being mounted at a lower end of the steering column 10, the in-wheel motor 14 being mounted at a second end of the vehicle body 20, and the motor controller being configured to control the operation of the in-wheel motor 14.

According to an embodiment of the present application, at least one of the vehicle body 20, the steering column 10, and the foot pedal 30 is configured to be dynamically adjustable in posture during start-up and riding of the electric scooter. Therefore, in the riding process, no matter the electric scooter normally runs, goes uphill, goes downhill or runs at a high speed, the electric scooter can dynamically adjust the postures of the scooter body 20, the steering column 10 and/or the pedal plate 30, further adjust the gravity center position of the riding vehicle, avoid the situation that the riding posture needs to be adjusted manually when emergency braking and the like occur, and further improve the riding safety.

To achieve posture adjustment of the vehicle body 20, the steering column 10, and the foot board 30, at least one of the vehicle body 20 and the steering column 10 may be lengthened and shortened, and/or the foot board 30 may be pivoted. According to an embodiment of the present application, the vehicle body 20 and the steering column 10 may include first and second portions, respectively, that are movable relative to each other. As shown in fig. 1A and 1B, the vehicle body 20 includes a first portion 21 and a second portion 22, and the first portion 21 and the second portion 22 are of a nested structure. It should be noted that although fig. 1A and 1B do not show the first and second portions of the steering column 10, the steering column 10 may also include a two-part structure similar to the vehicle body 20.

It should be noted that the structure of the electric bicycle of the present application is not limited to the structure and form described above and shown in fig. 1A and 1B, but may include other structures and forms. For example, the positions of the follower wheels 13 and the in-wheel motors 14 may be interchanged, the first end of the vehicle body 20 may be flush with the second end, or the first catch 11 and the second catch may be provided on the vehicle body 20, the steering column 10 is provided with a connecting mechanism for connecting with the vehicle body 20, and so on.

In order to realize the posture adjustment of the electric scooter, the electric scooter further comprises a posture adjustment system. The posture adjustment system for the electric scooter of the present application will be described with reference to fig. 2.

As shown in fig. 2, the posture adjustment system for an electric scooter of the present application includes: sensors, such as a throttle sensor 110, a brake sensor 120, a speed sensor 130, and an acceleration sensor 140, configured to detect parameters of the electric scooter, such as throttle opening, brake force, speed, and acceleration of the electric scooter, during start-up and riding of the electric scooter; a main control unit 100, the main control unit 100 being configured to determine a motion state of the electric scooter according to the above parameters; and a posture adjustment mechanism 180, the posture adjustment mechanism 180 being configured to dynamically adjust the posture of at least one of the vehicle body 20, the steering column 10, and the foot pedal 30 according to a signal from the main control unit 100.

In addition, the posture adjustment system of the electric scooter of the present application may further include: a battery 160 for powering all powered components of the electric scooter; a DC-DC converter 150 for converting power from the battery 160 into power required for a sensor or the like; an H-bridge MOSFET 170 for driving the attitude adjustment mechanism 180 according to a signal from the main control unit 100; and a posture sensor 190 for detecting the posture of at least one of the vehicle body 20, the steering column 10, and the foot pedal 30. However, the posture adjustment system of the present application is not limited thereto, and may include other components.

Specifically, the acceleration sensor 140 is configured to detect an acceleration of the electric scooter, the throttle sensor 110 is configured to detect a throttle opening of the electric scooter, the brake sensor 120 is configured to detect a brake force level of a brake of the electric scooter, and the speed sensor 130 is configured to detect a speed of the electric scooter. More specifically, the acceleration sensor 140 is configured to detect acceleration of the electric scooter in X, Y and Z-axis directions to more accurately judge the acceleration direction and magnitude of the electric scooter, and the posture sensor 190 is configured to detect the extended and shortened lengths of the vehicle body 20 and the steering column 10, and the pivoting angle of the foot pedal 30 to confirm whether posture adjustment is accurate.

According to the operating principle of the posture adjusting system, in the riding process of the electric scooter: when the electric scooter is in an acceleration state and the accelerator is not increased, the main control unit 100 judges that the electric scooter is in a motion state of running along a downhill road; when the electric scooter is in a deceleration state and the accelerator is not reduced, the main control unit 100 judges that the electric scooter is in a motion state of traveling along an uphill road; when the accelerator is increased or decreased, the main control unit 100 determines a relationship between a speed of the electric scooter and a predetermined speed value, and if the speed is greater than the predetermined speed value, determines that the electric scooter is in a motion state of traveling along a downhill road, otherwise determines that the electric scooter is in a motion state of traveling along an uphill road, wherein the predetermined speed value is a speed value at which the electric scooter travels at a constant speed on a flat road with a predetermined accelerator opening degree; when the electric scooter moves at a uniform speed, the main control unit 100 judges whether the speed of the electric scooter is greater than a predetermined threshold, and if the speed is greater than the predetermined threshold, it is judged that the electric scooter is in a high-speed running motion state. The predetermined speed value and the predetermined threshold value are a set of values pre-stored in the main control unit 100, and the predetermined speed value and the accelerator opening degree may be stored in the form of a lookup table, or a corresponding relationship between the predetermined speed value and the accelerator opening degree may be stored in the form of a formula.

On the other hand, during the starting process of the electric scooter, when the brake is not braked and the accelerator is increased, the main control unit 100 determines the relationship between the speed of the electric scooter and a predetermined speed value, and if the speed is greater than the predetermined speed value, determines that the electric scooter is in a motion state of traveling along a downhill road, and otherwise, determines that the electric scooter is in a motion state of traveling along an uphill road, wherein the predetermined speed value is a speed value at which the electric scooter travels at a constant speed on a flat road with a predetermined accelerator opening degree, as described above.

According to an embodiment of the present application, the main control unit 100 may calculate a posture adjustment value of at least one of the vehicle body 20, the steering column 10, and the footboard 30 according to a motion state of the electric scooter, and transmit a signal to the posture adjustment mechanism 180 in order to adjust the posture of the vehicle body 20, the steering column 10, and/or the footboard 30.

The attitude adjustment mechanism 180 may include an adjustment motor that drives the actuator to move to extend or shorten at least one of the vehicle body 20 and the steering column 10 and/or to pivot the foot board 30, and an actuator. In the embodiment shown in fig. 3, the attitude adjusting mechanism 180 includes the adjustment motor 23 and the actuator 24, and is mounted in the vehicle body 20. The actuator 24 may include a gear and rack, a worm gear and worm, a cam and slider or gear set, and the like. For example, in an example where the actuator 24 includes a gear and rack, the rack may be mounted on the first portion 21 of the vehicle body 20, and the gear and adjustment motor 23 may be mounted on the second portion 22 of the vehicle body 20. When the gear is driven to rotate by the adjusting motor 23, the rack and the first part 21 are driven to move towards or away from the second part 22, so that the posture adjustment of the vehicle body 20 is realized.

In addition, fig. 3 also shows that a damping spring 16 is provided between the handlebar 12 and the steering column 10, for example, in the connection mechanism 25. When the front wheel is braked emergently, the damping spring 16 can absorb forward-leaning potential energy and can absorb road surface vibration and damp and frustrated feeling caused by braking. It should be noted that the present application is not limited thereto, and the damper spring 16 may be replaced with a hydraulic mechanism or the like.

As shown in fig. 4, when the electric scooter is in a motion state II of traveling along a flat road, the posture adjustment mechanism 18 causes the vehicle body 20 to maintain a set posture so that the center of gravity G of the rider is kept perpendicular to the floor; when the electric scooter is in a motion state III for traveling along an uphill road, the attitude adjustment mechanism 18 causes the vehicle body 20 to extend so as to move forward the center of gravity G of the riding vehicle; when the electric scooter is in a moving state I of traveling along a downhill road, the posture adjustment mechanism 180 causes the vehicle body 20 to be shortened to move the center of gravity G of the rider backward. In fig. 4, a vertical line perpendicular to the ground is shown by a dotted line with an arrow.

It should be noted that the attitude adjusting mechanism 180 may also be similarly installed in the steering column 10. Thus, when the electric scooter is in a state of motion III traveling along an uphill road, the attitude adjustment mechanism 18 may cause the steering column 10 to shorten to advance the rider's center of gravity G; when the electric scooter is in a moving state I of traveling along a downhill road, the posture adjustment mechanism 180 may cause the steering column 10 to be extended to move the rider's center of gravity G backward, and may also adjust the posture of the electric scooter.

In addition, the posture adjustment mechanism 180 may also be configured to adjust the posture of the foot pedal 30. For example, the posture adjustment mechanism 180 is installed in the vehicle body 20 at a position close to the footboard 30, and when the electric scooter is in the moving state III traveling along an upward slope, the posture adjustment mechanism 18 may cause the front end of the footboard 30 to pivot downward to move forward the center of gravity G of the rider; when the electric scooter is in a moving state I of traveling along a downhill road, the posture adjustment mechanism 180 may cause the front end of the footboard 30 to pivot upward (as shown by a dotted line in fig. 5) to move the center of gravity G of the rider backward, and also may adjust the posture of the electric scooter.

Through changing the gesture of electric scooter, can adjust the position of riding passerby's focus G for ride passerby's focus G antedisplacement when the upslope, ride passerby's focus G rethread when the downhill path, can avoid riding passerby and topple over forward when the circumstances such as emergency braking appear.

In addition, in order to prevent the electric scooter from falling forward during emergency braking when the electric scooter is in a high-speed movement state, the posture adjustment mechanism 180 may cause the vehicle body 20 to be shortened, the steering column 10 to be lengthened, or the front end of the footboard 30 to be pivoted upward, so that the center of gravity G of the rider moves backward, whereby safety may be further improved.

The relationship between the posture adjustment of the vehicle body 20, the steering column 10, and the foot board 30 and the center of gravity G of the rider will be described in further detail below in conjunction with fig. 6.

As shown in the right part of fig. 6, when the electric scooter normally travels on a flat road, the rider' S foot steps on the step 30 with the force point O, the force point F of the follower wheel 13, and the force point S between the vehicle body 20 and the steering column 10, thus forming a triangular mechanism Δ OFS. The rider's center of gravity is G and the line OG is substantially perpendicular to the ground. The rider's hand grips handlebar 12, the point of force applied to handlebar 12 being H, and connection GH remains substantially unchanged without manual adjustment.

As shown in the left portion of fig. 6, when the electric scooter is in a motion state of high-speed travel on a flat road, the vehicle body 20 is elongated such that the connection line OG is inclined rightward, i.e., inclined rearward, at an angle α to a vertical line V perpendicular to the ground. Accordingly, the center of gravity G of the rider moves backward, and safety can be further improved at the time of emergency braking of the front wheel.

The posture adjustment of the body 20, the steering column 10 and the pedals 30 can similarly adjust the position of the center of gravity G of the rider when the electric scooter ascends or descends a slope, achieving similar effects, which will not be described in further detail herein.

The posture adjustment method for the electric scooter of the present application will be described with reference to fig. 7A and 7B. Fig. 7A shows the steps of the posture adjustment method during riding of the electric scooter, and fig. 7B shows the steps of the posture adjustment method during starting of the electric scooter.

The posture adjustment method of the present application may roughly include:

the first step is as follows: detecting and judging the motion state of the electric scooter in the starting process and the riding process of the electric scooter;

the second step is as follows: the posture of at least one of the vehicle body, the steering column and the footboard is dynamically adjusted according to the motion state of the electric scooter.

The first step and the second step may each comprise a plurality of sub-steps.

Specifically, as shown in fig. 7A, during the riding process, the first step of the posture adjustment method of the present application may include:

step S11: starting detection;

step S12: detecting acceleration of the electric scooter, for example, acceleration in X-axis, Y-axis, and Z-axis directions;

step S13: detecting the accelerator opening degree of the electric scooter;

step S14: detecting a speed of the electric scooter;

step S15: and judging the motion state of the electric scooter.

When the electric scooter is in an acceleration state and the accelerator is not increased, judging that the electric scooter is in a motion state of running along a downhill road; when the electric scooter is in a deceleration state and the accelerator is not reduced, judging that the electric scooter is in a motion state of running along an uphill road; when the accelerator is increased or decreased, if the speed is greater than a predetermined speed value, it is determined that the electric scooter is in a motion state of traveling along a downhill road, and otherwise, it is determined that the electric scooter is in a motion state of traveling along an uphill road, wherein the predetermined speed value is a speed value at which the electric scooter travels at a constant speed on a flat road with a predetermined accelerator opening degree.

As shown in fig. 7B, during the starting process, the first step of the posture adjustment method of the present application may include:

step S21: detecting the braking force of the brake;

step S22: detecting the accelerator opening of an accelerator;

step S23: detecting a speed of the electric scooter;

step S25: detecting acceleration of the electric scooter, for example, acceleration in X-axis, Y-axis, and Z-axis directions;

step S26: and judging the motion state of the electric scooter.

When the brake is not braked and the accelerator is increased, the relation between the speed of the electric scooter and a preset speed value is judged, if the speed is greater than the preset speed value, the electric scooter is judged to be in a motion state of driving along a downhill road, otherwise, the electric scooter is judged to be in a motion state of driving along an uphill road, wherein the preset speed value is the speed value of the electric scooter driving at a constant speed on a flat road with a preset accelerator opening degree.

The second step of the posture adjustment method of the present application (i.e., step S16 in fig. 7A and step S27 in fig. 7B) may include, whether during riding of the electric scooter or during starting: and calculating a posture adjustment value of at least one of the vehicle body, the steering column and the pedal according to the motion state of the electric scooter, and adjusting the posture of at least one of the vehicle body, the steering column and the pedal according to the posture adjustment value.

Specifically, the rule of the attitude adjustment is as follows:

when the electric scooter is in a moving state of traveling along an uphill road, causing the vehicle body 20 to extend, the steering column 10 to shorten, and/or the front end of the footboard 30 to pivot downward;

when the electric scooter is in a moving state of traveling down a downhill road or a high speed moving state, the vehicle body 20 is caused to be shortened, the steering column 10 is elongated, and/or the front end of the footboard 30 is caused to pivot upward.

In addition, the posture adjustment method of the present application further includes a step of detecting the posture of at least one of the vehicle body 20, the steering column 10, and the foot pedal 30, i.e., step S17 in fig. 7A and step S28 in fig. 7B. Whether the posture is adjusted in place can be confirmed through the steps, so that the posture adjustment can be accurately realized.

It should be noted that in any moving state of the electric scooter, the posture of one of the vehicle body, the steering column and the footboard may be adjusted individually, or two or three of them may be adjusted simultaneously. Accordingly, one, two or three sets of attitude adjustment mechanisms may be provided. The number of attitude adjustment mechanisms is not limited in the present application.

The posture adjusting system, the posture adjusting method and the electric scooter comprising the posture adjusting system can dynamically adjust the posture of at least one of the body, the steering column and the pedal of the electric scooter in the riding process and the starting process, so that the gravity center position of a rider can be changed, and the riding is safer.

The present application is described in detail above with reference to specific embodiments. It is to be understood that both the foregoing description and the embodiments shown in the drawings are to be considered exemplary and not restrictive of the application. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit of the application, and these changes and modifications do not depart from the scope of the application.

Claims

1. An attitude adjustment system for an electric scooter, the electric scooter comprising: a steering column (10); a vehicle body (20), a first end of the vehicle body (20) being pivotally coupled with the steering column (10); and a footrest (30), the footrest (30) being pivotally coupled with the vehicle body (20) and disposed proximate to a second end opposite the first end of the vehicle body (20);

the attitude adjustment system includes:

a sensor configured to detect a parameter of the electric scooter during start-up and riding of the electric scooter;

a master control unit (100), the master control unit (100) being configured to determine a movement state of the electric scooter depending on the parameter; and

a posture adjustment mechanism (180), the posture adjustment mechanism (180) configured to dynamically adjust a posture of at least one of the vehicle body (20), the steering column (10), and the foot pedal (30) according to a signal from the main control unit (100).

2. The attitude adjustment system of claim 1, wherein the sensor includes:

an acceleration sensor (140), the acceleration sensor (140) configured to detect an acceleration of the electric scooter;

a throttle sensor (110), the throttle sensor (110) being configured to detect an opening of a throttle of the electric scooter;

a speed sensor (120), the speed sensor (120) configured to detect a speed of the electric scooter; and

a brake sensor (130), the brake sensor (130) configured to detect a brake force of a brake of the electric scooter.

3. The attitude adjustment system according to claim 2, wherein during riding of the electric scooter:

when the electric scooter is in an acceleration state and the throttle is not increased, the main control unit (100) judges that the electric scooter is in a motion state of driving along a downhill road;

when the electric scooter is in a deceleration state and the throttle is not reduced, the main control unit (100) judges that the electric scooter is in a motion state of driving along an uphill road;

when the accelerator is increased or decreased, if the speed is greater than a predetermined speed value, the main control unit (100) determines that the electric scooter is in a motion state of traveling along a downhill road, otherwise, determines that the electric scooter is in a motion state of traveling along an uphill road, wherein the predetermined speed value is a speed value at which the electric scooter travels at a constant speed on a flat road with a predetermined accelerator opening degree;

when the electric scooter moves at a constant speed, if the speed is greater than a preset threshold value, the main control unit (100) judges that the electric scooter is in a high-speed movement state.

4. The stance adjustment system according to claim 2, wherein during start-up of the electric scooter:

when the brake is not braked and the accelerator is increased, if the speed is greater than the preset speed value, the main control unit (100) judges that the electric scooter is in a motion state of running along a downhill road, otherwise, the main control unit judges that the electric scooter is in a motion state of running along an uphill road, wherein the preset speed value is a speed value of the electric scooter running at a constant speed on a flat road with a preset accelerator opening degree.

5. The posture adjustment system of claim 1, wherein the main control unit (100) calculates a posture adjustment value of at least one of the vehicle body (20), the steering column (10) and the foot pedal (30) according to a motion state of the electric scooter, and sends a signal to the posture adjustment mechanism (190).

6. The attitude adjustment system according to claim 1, wherein the attitude adjustment mechanism (190) includes an adjustment motor (23) and an actuator (24), the adjustment motor (23) driving the actuator (24) to move to lengthen or shorten at least one of the vehicle body (20) and the steering column (10) and/or to pivot the foot pedal (30).

7. The attitude adjustment system according to claim 6, wherein when the electric scooter is in a moving state of traveling along an uphill road, the attitude adjustment mechanism (180) causes the vehicle body (20) to elongate, the steering column (10) to shorten, and/or a front end of the footboard (30) to pivot downward; and is

When the electric scooter is in a moving state of traveling along a downhill road or a high-speed moving state, the posture adjustment mechanism (180) causes the vehicle body (20) to be shortened, the steering column (10) to be lengthened, and/or the front end of the footboard (30) to be pivoted upward.

8. The attitude adjustment system according to claim 6, wherein the attitude adjustment mechanism (180) is mounted in the vehicle body (20) and/or the steering column (10), and the actuator (24) includes a gear and rack, a worm and gear, a cam and slider, or a gear train.

9. The attitude adjustment system according to claim 2, wherein the sensor further includes an attitude sensor (190), the attitude sensor (190) being configured to detect an attitude of at least one of the vehicle body (20), the steering column (10), and the foot pedal (30).

10. The stance adjustment system according to claim 2, wherein the acceleration sensor (140) is configured to detect accelerations of the electric scooter in X-, Y-, and Z-axis directions; the attitude sensor (190) is configured to detect the length of extension and contraction of the vehicle body (20) and the steering column (10), and/or the angle at which the foot board (30) pivots.

11. A posture adjustment method for an electric scooter, the electric scooter comprising: a steering column (10); a vehicle body (20), a first end of the vehicle body (20) being pivotally coupled with the steering column (10); and a footrest (30), the footrest (30) being pivotally coupled with the vehicle body (20) and disposed proximate to a second end opposite the first end of the vehicle body (20);

the posture adjustment method comprises the following steps:

the second step is as follows: dynamically adjusting a posture of at least one of the vehicle body (20), the steering column (10) and the footboard (30) according to a motion state of the electric scooter.

12. The attitude adjustment method according to claim 11, wherein the first step includes:

detecting the acceleration of the electric scooter;

detecting the opening degree of an accelerator of the electric scooter;

detecting a speed of the electric scooter; and

and detecting the braking force of the electric scooter.

13. The attitude adjustment method according to claim 12, wherein the first step further comprises: determining a motion state of the electric scooter, wherein,

during the riding process of the electric scooter:

when the electric scooter is in an acceleration state and the throttle is not increased, judging that the electric scooter is in a motion state of running along a downhill road;

when the electric scooter is in a deceleration state and the throttle is not reduced, judging that the electric scooter is in a motion state of driving along an uphill road;

when the accelerator is increased or decreased, if the speed is greater than a predetermined speed value, determining that the electric scooter is in a motion state of traveling along a downhill road, otherwise, determining that the electric scooter is in a motion state of traveling along an uphill road, wherein the predetermined speed value is a speed value at which the electric scooter travels at a constant speed on a flat road with a predetermined accelerator opening;

when the electric scooter moves at a constant speed, if the speed is greater than a preset threshold value, the main control unit judges that the electric scooter is in a high-speed movement state; and

during start-up of the electric scooter:

when the braking force is zero and the accelerator is increased, if the speed is greater than a preset speed value, the electric scooter is judged to be in a motion state of driving along a downhill road, otherwise, the electric scooter is judged to be in a motion state of driving along an uphill road, wherein the preset speed value is a speed value of driving at a constant speed on a flat road by the electric scooter with a preset accelerator opening degree.

14. The posture adjustment method according to claim 11, wherein the second step includes:

calculating a posture adjustment value of at least one of the vehicle body (20), the steering column (10) and the pedal (30) according to a motion state of the electric scooter;

adjusting a posture of at least one of the vehicle body (20), the steering column (10), and the foot board (30) according to the posture adjustment value.

15. The attitude adjustment method according to claim 14, wherein adjusting the attitude of at least one of the vehicle body (20), the steering column (10), and the foot pedal (30) includes:

causing the vehicle body (20) to elongate, the steering column (10) to shorten and/or the front end of the footboard (30) to pivot downwards when the electric scooter is in motion along an uphill road; and is

When the electric scooter is in a moving state of traveling along a downhill road or a high-speed moving state, the vehicle body (20) is caused to be shortened, the steering column (10) is caused to be elongated, and/or the front end of the footboard (30) is caused to be pivoted upward.

16. The attitude adjustment method according to claim 11, further comprising a step of detecting an attitude of at least one of the vehicle body (20), the steering column (10), and the foot pedal (30).

17. An electric scooter comprising:

a steering column (10);

a vehicle body (20), a first end of the vehicle body (20) being pivotally coupled with the steering column (10); and

a footrest (30) pivotally coupled with the vehicle body (10) and disposed proximate a second end opposite the first end of the vehicle body (20);

wherein at least one of the body (20), the steering column (10) and the footboard (30) is configured to be dynamically adjustable in pose during start-up and riding of the electric scooter;

wherein the electric scooter further comprises a posture adjustment system according to any one of claims 1-10.

18. Electric scooter according to claim 17, wherein the first end of the body (20) is higher than the second end, and at least one of the body (20) and the steering column (10) comprises a first and a second part movable relative to each other.

19. The electric scooter of claim 18, wherein the first and second portions are nested structures.

20. The electric scooter of claim 17, further comprising a handle (12), wherein the handle (12) is mounted at an upper end of the steering column (10), and wherein a damping spring (16) is provided between the handle (12) and the steering column (10).

21. Electric scooter according to claim 17, wherein the steering column (10) is configured to be foldable towards the vehicle body (20) or unfoldable away from the vehicle body (20), and the steering column (10) is provided with a first catch (11), the first catch (11) being configured to secure the steering column (10) in an unfolded position when the steering column (10) is unfolded to a maximum extent away from the vehicle body (20).

22. The electric scooter of claim 17, wherein the footboard (30) is configured to be foldable towards the body (20) or unfoldable away from the body (20), and the footboard (30) is provided with a second catch configured to secure the footboard (30) in a folded position when the footboard (30) is folded to a maximum extent towards the body (20).

23. The electric scooter of claim 17, wherein the electric scooter further comprises:

a follower wheel (13), the follower wheel (13) being mounted at a lower end of the steering column (10);

an in-wheel motor (14), the in-wheel motor (14) being mounted at a second end of the vehicle body (20) opposite to the first end; and

a motor controller configured to control operation of the in-wheel motor (14).