CN103963886A - Electric scooter - Google Patents

Abstract

An electric scooter is composed of a scooter body with a pedal, a steering vertical tube with a handle and a front wheel, a drive unit with a motor and a battery box, and a strain gauge attached to said steering vertical tube or handle for sensing the strain generated by steering vertical tube or handle and generating a strain signal to a controller.

Description

electric scooter

technical field

The invention relates to an electric scooter, in particular to an electric scooter which is easy to handle.

Background technique

The traditional scooter is achieved by the user continuously pedaling the ground with one foot to achieve the effect of sliding forward, but when encountering an uphill section, in addition to slowing down the sliding speed of the scooter, it will also consume a considerable amount of time for the user. Only physical strength can drive the scooter forward, which will greatly reduce the user's interest in the scooter. Therefore, in order to reduce the impact of the uphill section on the scooter, there are so-called electric scooters on the market that can be used on various road sections. Proper electric power is provided to allow users to operate more conveniently and easily.

The current electric scooters are nothing more than turning the handle or stepping on the pedal to achieve the effect of speed control. However, no matter which of the above-mentioned driving methods requires a certain degree of coordination in manipulation, so not every user In addition, once an unexpected situation requires deceleration and braking, the user is often unable to respond appropriately to the grips or pedals in real time, which will virtually increase the danger of use.

Contents of the invention

The main purpose of the present invention is to provide an electric scooter, which can facilitate the user to control acceleration, deceleration or braking, and has good control safety.

The electric scooter of the present invention includes a vehicle body, a driving device, at least one strain gauge, and a controller. The vehicle body has a pedal, a steering stem, a handlebar, a front wheel, and a rear wheel. The front wheel is rotatably arranged at the bottom end of the steering standpipe, and the rear wheel is rotatably arranged at the rear end of the pedal; the driving device has a motor and a battery box, and the motor can be optionally installed on the vehicle body The front wheel or the rear wheel of the car body, the battery box is arranged on the car body and electrically connected to the motor; the strain gauge can be selectively attached to the steering stem or the handlebar of the car body to sense the steering stem or the strain generated by the driver’s handlebars when the force is applied to send a strain signal; the controller is electrically connected to the motor, the battery box, and the strain gauge to receive the strain signal from the strain gauge to control the motor action.

Description of drawings

In order to further understand the specific technical content of the present invention, the following detailed descriptions are as follows in conjunction with the embodiments and accompanying drawings, wherein:

FIG. 1 is a schematic plan view of a first embodiment of the present invention.

Fig. 2 is a sectional view of the steering riser according to the first embodiment of the present invention.

FIG. 3 is a block diagram of the first embodiment of the present invention.

FIG. 4 is a schematic diagram of the signal output of the strain gauge according to the first embodiment of the present invention.

FIG. 5 is a partial perspective view of the second embodiment of the present invention, mainly showing the state where the strain gauge is attached to the handlebar.

Fig. 6 is a perspective view of a third embodiment of the present invention.

Detailed ways

Please refer to FIG. 1 , which is an electric scooter 10 of the present invention, which includes a vehicle body 20 , a driving device 30 , two strain gauges 40 , and a controller 50 .

The vehicle body 20 has a pedal 21 , a steering stem 22 , a handlebar 23 , a front wheel 24 , and a rear wheel 25 . Steering standpipe 22 is arranged on the front end of pedal 21, and driver handlebar 23 is arranged on the top of turning to standpipe 22, in order to hold for the user to carry out the control of steering standpipe 22 left and right, push forward or pull back; 24 is rotatably arranged at the bottom end of the steering standpipe 22; the rear wheel 25 is rotatably arranged at the rear end of the pedal 21.

Please refer to FIG. 3 , the driving device 30 has a motor 32 and a battery box 34 . The motor 32 can be optionally installed on the front wheel 24 or the rear wheel 25 of the vehicle body 20, here, it is installed in the rear wheel 25 as an implementation; the battery box 34 is electrically connected to the motor 32 and can be installed on the vehicle body according to actual needs The bottom surface of the pedal 21 of 20 or the inside of the pedal 21 is installed in the pedal 21 as an implementation form for providing the power source of the motor 32 .

Please refer to FIG. 2 . In this embodiment, two strain gauges 40 are attached to the front side and the rear side of the steering standpipe 22 of the vehicle body 20 to be consistent with the direction of travel of the vehicle body 20 in order to sense the steering riser. 22 The strain produced when the force is applied. What needs to be added here is that the strain gauge 40 can be arranged on the top of the steering standpipe 22 (that is, the position close to the handlebar 23), the center of the steering standpipe 22 or other positions of the steering standpipe 22, wherein FIG. 1 The sensing effect provided by the pasted position is the best. In addition, two sets of strain gauges 40 do not have to be installed at the same time, as long as at least one set is set on the front side or the rear side of the steering standpipe 22 .

The controller 50 is installed in the pedal 21 of the vehicle body 20 and is electrically connected to the motor 32, the battery box 34, and the two strain gauges 40, and is used to receive the strain signals of the two strain gauges 40 to control the action of the motor 32, such as acceleration and deceleration. , Stop or brake.

Please refer to FIG. 4 (the vertical axis is the voltage value V, and the horizontal axis is the time T). When the user applies a forward force to the steering stem 22, the two strain gauges 40 will sense the deformation of the steering stem 22 and separate Send a strain signal to the controller 50, once the strain signal value V2 sent by each strain gauge 40 is greater than a default value +V1 built in the controller 50, the controller 50 will control the motor 32 to increase the power to the rear wheel 25 output, so that the vehicle body 20 starts to accelerate, so as to prevent the user from accidentally generating a signal to control the action of the motor 32 due to the user accidentally touching the steering standpipe 22 or being affected by road vibration, so as to increase the safety in use. Similarly, when the user exerts a pulling force on the steering standpipe 22, the two strain gauges 40 will sense the deformation of the steering standpipe 22 and send another strain signal to the controller 50 respectively. When the strain signal value V3 is smaller than another default value -V1 built in the controller 50, the controller 50 will control the motor 32 to reduce the power output to the rear wheels 25, so that the vehicle body 20 starts to decelerate.

In addition, when the controller 50 receives the strain signal from the strain gauge 40 and controls the motor 32 to accelerate, if the user keeps the steering standpipe 22 pushed forward, the controller 50 will control the motor 32 to maintain a constant Once the user applies a force to the steering standpipe 22, the controller 50 will control the motor 32 to decelerate according to another induction signal sent by the strain gauge 40. In addition, a set of regenerative braking system can be used (This is a known technology and will not be described in detail) As a brake, that is, the electric energy generated by the motor 32 is introduced into an external resistor (not shown in the figure) to increase the resistance of the motor 32 to quickly achieve the effect of braking.

On the other hand, the affixed position of the strain gauge 40 is not limited to be affixed to the steering standpipe 22, and may also be affixed to the center or both ends of the handlebar 23, as shown in FIG. The strain that occurs when pushing, pulling, twisting, or gripping. In addition, the strain gauge 40 can be attached to different positions of the steering riser 52 according to the electric scooter 50 in different operating modes. As shown in FIG. 6 , the strain gauge 40 can be attached to the top of the steering riser 52, The left side or the right side are used to sense the strain generated by the steering standpipe 22 when subjected to torsion or grip force and send a strain signal to the controller 50, which can also control the motor 32 to accelerate, decelerate, stop or brake. Of course, two sets of strain gauges 40 do not have to be installed at the same time, as long as at least one set is attached to the top, left side or right side of the steering standpipe 52 .

To sum up, the electric scooter 10 of the present invention is designed by affixing one or two sets of strain gauges to the steering standpipe or the handlebar, allowing the user to control the steering by pushing forward, pulling backward, twisting left or right The standpipe or the handlebar can synchronously control the acceleration, deceleration, stop or brake of the motor, which is not only convenient to operate but also has good safety in use, so as to achieve the purpose of the present invention.

Claims (10)

1. a Segway Human Transporter, includes:

One car body, there is a pedal, and turn to standpipe, driver's handle, a front-wheel, an and trailing wheel, this turns to standpipe to be hubbed at the front end of this pedal, this driver is being connected in the top that this turns to standpipe, this front-wheel is located at this bottom that turns to standpipe rotationally, and this trailing wheel is located at the rear end of this pedal rotationally;

One actuating device, has a motor and a battery case, and this motor is selectively installed on front-wheel or the trailing wheel of this car body, and this battery case is located at this car body and is electrically connected this motor;

At least one strain sensor, what be selectively attached at this car body turns to standpipe or driver's handle, and in order to sensing, this turns to standpipe or this driver that the strain producing when stressed is produced to a strain signal; And

One controller, is electrically connected this motor, this battery case, and this strain sensor, controls the action of this motor in order to receive the strain signal of this strain sensor.

2. Segway Human Transporter as claimed in claim 1, wherein this strain sensor is selectively attached at this leading flank that turns to standpipe or trailing flank, and in order to sensing, this turns to the strain that standpipe produces when being subject to thrust, pulling force, torsion or grip.

3. Segway Human Transporter as claimed in claim 1, include two these strain sensors, this two strain sensor is relatively attached at this leading flank that turns to standpipe and trailing flank, and in order to sensing respectively, this turns to the strain that standpipe produces when being subject to thrust, pulling force, torsion or grip.

4. Segway Human Transporter as claimed in claim 1, wherein this strain sensor is attached at this driver's handle, in order to this driver of sensing the strain producing when being subject to thrust, pulling force, torsion or grip.

5. the Segway Human Transporter as described in claim 1 to 4, wherein this controller is controlled this motor according to this strain signal and is accelerated, slows down, shuts down or brake.

6. Segway Human Transporter as claimed in claim 5, wherein this controller is located in the pedal of this car body.

7. Segway Human Transporter as claimed in claim 5, wherein when this controller can not maintain the action of this motor when receiving another this induced signal of this strain sensor.

8. Segway Human Transporter as claimed in claim 6, wherein, when the strain signal value of this strain sensor is less than a default value, this controller can not controlled this motor action.

9. Segway Human Transporter as claimed in claim 5, wherein this motor is installed in this trailing wheel.

10. Segway Human Transporter as claimed in claim 5, wherein this battery case is selectively located in the bottom surface or this pedal of this pedal.