WO2017219714A1 - Two-wheeled electric scooter - Google Patents

Abstract

An electric self-balancing two-wheeled scooter comprises a foot platform main body (10), a steering mechanism (20), a power supply assembly (30), two wheel-hub motor wheels (40), a sensor apparatus, and an electric self-balancing controller apparatus (50), wherein the steering mechanism (20) comprises an elastic component supporting the foot platform main body (10); the foot platform main body (10) comprises an upper housing and a bottom housing; the bottom housing is mounted on the steering mechanism (20); front and rear foot platforms and the sensor apparatus are disposed on the upper housing; the sensor apparatus and the electric self-balancing controller apparatus (50) are both electrically connected to the power supply assembly (30); when the sensor apparatus detects that feet of a rider deflect towards the left or right at a corresponding angle, the electric self-balancing controller apparatus (50) performs electronic speed differential driving control on the two wheel-hub motors, thereby realizing the steering function. The two-wheeled electric scooter enables a rider to steer simply by deflecting their feet towards the left or right, thus realizing a more convenient, safer and easier steering.

Description

 Electric two-wheeled scooter

Technical field

 The utility model relates to the field of scooters, in particular to an electric two-wheel scooter.

Background technique

The electric two-wheeled scooter is a new generation of energy-saving, environmentally friendly and portable means of transportation. Short-distance travel is very convenient and can replace bus and subway. The electric two-wheeled scooter is compact and easy to carry, and can be placed directly into the trunk of the car, referring to the home or the office.

The electric two-wheeled scooter includes a car body, a wheel hub, a hub motor, a controller and a battery, and is mainly powered by electric energy. The pedals of the electric two-wheeled scooter are located at both ends of the hub, and people need to straddle the two axial ends of the hub when riding. , just like our usual "right" status.

At present, the electric two-wheeled scooter has obvious pain points and restricts its development. In the process of starting the electric two-wheeled scooter, due to the two rounds, there is no pinning mechanism, the ground has low adhesion, and the prior art is by riding. The walker twists the waist and realizes the steering. This requires the rider to ride higher, and if the ride speed is faster, the difficulty of twisting the body is greatly enhanced due to inertia, which is inconvenient for people to achieve steering.

 Utility model content

In order to solve the above problems, the utility model relates to an electric two-wheeled scooter which can realize steering without twisting the waist and only needs to move the direction of the foot board.

The utility model discloses an electric balance two-wheeled scooter, which comprises a foot pedal body, a steering mechanism, a power supply component, two wheel hub motor wheels, an induction device and an electric balance control device, wherein the steering mechanism comprises a support station The elastic member of the foot pedal body, the foot pedal body comprises an upper shell and a bottom shell, wherein the bottom shell is mounted on the steering mechanism, and the upper shell is provided with front and rear pedals and sensing devices, The sensing device and the electric balance control device are electrically connected to the power component, and the sensing device senses that the pedal of the rider is yawed to the left or right by a corresponding angle. The two hub motors are electronically differentially driven to achieve steering.

Further, the two hub motor wheels are coaxially disposed on opposite sides of the pedal body, and the length direction of the pedal body is perpendicular to the axes of the two hub motor wheels. .

 Further, the power component is mounted on one end of the bottom case, and the electric balance control device is mounted on the other end of the bottom case.

Further, the steering mechanism includes a motor shaft fixing seat, a rotating shaft and two compression springs, wherein the rotating shaft is installed in a middle portion of the motor shaft fixing seat, and each of the rotating shafts includes a needle bearing The two compression springs are respectively disposed on two sides of the rotating shaft, one end of each compression spring is connected to the foot pedal body, and the other end is connected to the motor shaft fixing seat.

Further, the sensing device includes an angle sensor that collects an inclination angle of the rider's foot plate, an angular velocity sensor that collects a tilt angular velocity of the rider's foot plate, and collects the rider on the pedal body Weight pressure sensor.

Further, the electric balance control device includes a microprocessor, an analog-to-digital conversion circuit, a PWM output circuit, and a motor drive circuit, wherein the sensing device is connected to the analog-to-digital conversion circuit, and the mode is The number conversion circuit, the PWM output circuit, and the motor drive circuit are all connected to the microprocessor.

 Further, a pedal spacer is disposed on the front and rear pedals, and the sensing device is disposed between the pedal gasket and the upper casing.

 Further, the foot pedal body is further provided with a switch and an indicator light connected to the electric balance control device.

Further, the electric balance control device comprises a left motor PWM output circuit and a left motor drive circuit connected to the left motor PWM output circuit, a right motor PWM output circuit, and a connection to the right motor PWM output circuit. The right motor drive circuit, when the sensing device senses that the rider's foot plate is turned to the left, the left motor PWM output circuit outputs a deceleration signal to the left motor drive circuit to achieve the left motor deceleration, while the right motor remains The left speed is turned to the left; when the sensing device senses that the rider's foot plate is turned to the right, the right motor PWM output circuit outputs a deceleration signal to the right motor drive circuit to realize the right motor deceleration, and the left The side motor maintains the original speed to achieve a rightward turn.

 Further, the two hub motor wheels are respectively disposed on two sides of the motor shaft fixing seat.

 An electric two-wheeled scooter embodying the utility model has the following beneficial technical effects:

Different from the prior art, the realization of the steering needs to twist the waist. The technical solution of the present invention realizes that the steering only needs to steer the footboard to the left or the right, thereby achieving steering, more convenient, safer, and more Easy to achieve steering.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is only some embodiments of the present invention, and other drawings can be obtained according to the drawings without any creative labor for those skilled in the art.

 1 is a partial bottom view of an electric two-wheeled scooter according to an embodiment of the present invention;

 2 is a perspective view of an electric two-wheeled scooter according to an embodiment of the present invention;

 3 is a schematic view showing the modular structure of an electric two-wheeled scooter according to an embodiment of the present invention;

 4 is a schematic structural view of a modular portion of an electric two-wheeled scooter according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , an embodiment of the present invention provides an electric two-wheeled scooter including a pedal body 10 , a steering mechanism 20 , a power component 30 , two hub motor wheels 40 , and an inductive device. The electric balance control device 50, wherein the steering mechanism 20 includes an elastic member supporting the foot pedal body 10, the foot pedal body 10 includes an upper case and a bottom case, the bottom case is mounted on the steering mechanism 20, and the front and rear pedals are disposed on the upper case And the sensing device, the sensing device and the electric balance control device 50 are electrically connected to the power component 30. When the sensing device senses that the rider's foot plate is tilted to the left or right by a corresponding angle, the electric balance control device 50 pairs the two hub motors 40. The electronic differential drive control is performed to realize the steering function.

The utility model has two electric wheels, and the two-wheel driving is more stable. The elastic member facilitates the sensing of the steering of the rider's footboard, either to the left or to the right. The two hub motor wheels 40 are between the two legs of the rider, and can be worn back and forth, or can be driven left and right. The electronic differential drive controls the left and right steering according to the left and right angle changes of the foot plates. The technical solution has economic, safety, use and Easy to maintain and easy to transport and carry.

Referring to FIG. 4, the two hub motor wheels 40 are coaxially disposed opposite to each other on the pedal body 10, and the length direction of the pedal body 10 is perpendicular to the axes of the two hub motor wheels 40.

 A power supply assembly 30 is mounted to one end of the bottom case, and an electric balance control device 50 is mounted to the other end of the bottom case.

The steering mechanism 20 includes a motor shaft fixing base 21, a rotating shaft 22, and two compression springs 23, wherein the rotating shaft 22 is mounted in the middle of the motor shaft fixing seat 21, and each end of the rotating shaft 22 includes a needle bearing, and the two compression springs 23 are respectively disposed. On both sides of the rotating shaft 22, one end of each compression spring 22 is connected to the pedal body 10, and the other end is connected to the motor shaft fixing seat 21.

 The coaxial mounts of the two hub motor wheels 40 are in a central shaft hole connection relationship.

 The rider deflects the footboard to the left or right and the drive system outputs an electrical signal as its angle changes.

The sensing device includes an angle sensor that captures the angle of inclination of the rider's footplate, an angular velocity sensor that collects the angular velocity of the rider's footplate, and a pressure sensor that collects the rider's weight on the pedal body 10.

The electric balance control device 50 includes a microprocessor, an analog-to-digital conversion circuit, a PWM output circuit, and a motor drive circuit. wherein the sensing devices are all connected to the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit, the PWM output circuit, and the motor drive circuit are both The processor is connected.

The analog-to-digital conversion circuit of the electric balance control device 50 performs analog-to-digital conversion of the collected angle analog signal and the angular velocity analog signal with a pressure analog signal, and outputs the digital quantity to the microprocessor for logical operation, and outputs the corresponding logical operation result to The PWM output circuit, the PWM output circuit sends a control signal to control the motor drive circuit to achieve the differential speed of the motor.

 A pedal spacer is disposed on the front and rear pedals, and the sensing device is disposed between the pedal gasket and the upper casing.

 The footrest body 10 is also provided with switches and indicator lights that are coupled to the electric balance control device 50.

The electric balance control device 50 includes a left motor PWM output circuit and a left motor drive circuit connected to the left motor PWM output circuit, a right motor PWM output circuit, and a right motor drive circuit connected to the right motor PWM output circuit. When the sensing device senses that the rider's foot plate is turned to the left, the left motor PWM output circuit outputs a deceleration signal to the left motor drive circuit to realize the left motor deceleration, and the right motor maintains the original speed to achieve the leftward turn;

When the sensing device senses that the rider's foot plate is turned to the right, the right motor PWM output circuit outputs a deceleration signal to the right motor drive circuit to achieve the right motor deceleration, and the left motor maintains the original speed to achieve the direction. Turn right.

 Two hub motor wheels 40 are respectively disposed on both sides of the motor shaft mount.

 An electric two-wheeled scooter embodying the utility model has the following beneficial technical effects:

Different from the current technology, the realization of the steering needs to twist the waist. The technical solution of the present invention realizes that the steering only needs to turn the footboard to the left or the right to realize the steering, which is more convenient and safer. Easy to achieve steering.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are included in the spirit and principles of the present invention, should be included in Within the scope of protection of the present invention.

Claims (10)

An electric balance two-wheeled scooter comprising a pedal body, a steering mechanism, a power supply assembly, two hub motor wheels, an inductive device, an electric balance control device, wherein the steering mechanism comprises a support for the pedal body The pedal member includes an upper casing and a bottom casing, wherein the bottom casing is mounted on the steering mechanism, and the upper casing is provided with front and rear pedals and sensing devices, and the sensing device And the electric balance control device is electrically connected to the power component, wherein the sensing device senses that the rider's foot plate is yawed to the left or right by a corresponding angle, and the electric balance control device has two The hub motors are electronically differentially driven to achieve steering. The electric balance two-wheeled scooter according to claim 1, wherein the two hub motor wheels are coaxially disposed opposite to each other on the side of the foot pedal body, and the length of the foot pedal body The direction is perpendicular to the axes of the two hub motor wheels. The electric balance two-wheeled scooter according to claim 1, wherein said power supply unit is mounted at one end of said bottom case, and said electric balance control device is mounted to the other end of said bottom case . The electric balance two-wheeled scooter according to any one of claims 1 to 3, wherein the steering mechanism comprises a motor shaft fixing seat, a rotating shaft and two compression springs, wherein the rotating shaft is mounted on the In the middle of the motor shaft fixing seat, the two ends of the rotating shaft respectively include a needle bearing, and the two compression springs are respectively disposed on two sides of the rotating shaft, and one end of each compression spring is connected to the foot. The pedal body is coupled to the motor shaft mount. The electric balance two-wheeled scooter according to claim 1, wherein said sensing means comprises an angle sensor for collecting an inclination angle of said rider's foot plate, and an inclination angular velocity of said rider's foot plate is collected. An angular velocity sensor, a pressure sensor that collects the weight of the rider on the pedal body. The electric balance two-wheeled scooter according to claim 5, wherein the electric balance control device comprises a microprocessor, an analog-to-digital conversion circuit, a PWM output circuit, and a motor drive circuit, wherein the inductive device Both are connected to the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit, the PWM output circuit, and the motor drive circuit are all connected to the microprocessor. The electric balance two-wheeled scooter according to claim 1, wherein a pedal spacer is disposed on the front and rear pedals, and the sensing device is disposed between the pedal spacer and the upper casing. The electric balance two-wheeled scooter according to claim 1, wherein the foot pedal body is further provided with a switch and an indicator light connected to the electric balance control device. The electric balance two-wheeled scooter according to claim 6, wherein the electric balance control device comprises a left motor PWM output circuit and a left motor drive circuit and a right motor connected to the left motor PWM output circuit. a PWM output circuit and a right motor driving circuit connected to the right motor PWM output circuit, wherein the left motor PWM output circuit is to the left motor driving circuit when the sensing device senses that the rider's foot plate is turned to the left The deceleration signal is output to realize the left motor deceleration, and the right motor maintains the original speed to achieve the leftward steering; when the sensing device senses that the rider's foot plate is turned to the right, the right motor PWM output circuit is turned to the right. The motor drive circuit outputs a deceleration signal to achieve the right motor deceleration, while the left motor maintains the original speed to achieve a rightward turn. The electric balance two-wheeled scooter according to claim 4, wherein the two hub motor wheels are respectively disposed on two sides of the motor shaft fixing seat.