JP2002102406A - Control device for skateboard having motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe control device for a skateboard having a motor. SOLUTION: On the lower surface of a skateboard main body, a roller, a battery, the driving motor, a control circuit, a control signal receiving section and an electrode plate are arranged. In this control device 9, a control signal having information being in proportional with a restriction amount of a control lever 92 is modulated into a high frequency, and is fed to an electrode 96 provided on the surface of a grip 95 in a manner to be exposed. Therefore, the high frequency signal is transmitted to the electrode plate 41 through legs from hands of an operator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorized skateboard, and more particularly to a skateboard with a safety device.

[0002]

2. Description of the Related Art A skateboard equipped with a power source such as an electric motor or a small engine has been known. In this system, a small engine is mounted on a skateboard, and its throttle lever is extended with a cable, held in a hand, and operated while being controlled.

[0003]

However, the conventional skateboard with a small engine as described above is not easy to control, and there is a danger that a runaway accident may occur.

Accordingly, an object of the present invention is to provide a device capable of safely operating a powered skateboard.

[0005]

According to the present invention, there is provided a skateboard control apparatus including a thrust generating means and a control means for controlling the thrust generating means.
The portable controller is provided with operating means operated by the operator and control means for outputting a high-frequency control signal by operating the operating means, and an electrode to which the output high-frequency control signal is supplied, A high-frequency detector capable of detecting the high-frequency control signal is disposed on the skateboard in the vicinity of a portion on which the driver's foot is placed, and is disposed on the skateboard. By providing a demodulation means for demodulating the detected high frequency control signal and outputting a control signal for controlling the thrust generating means via the control means, the high frequency control signal output from the controller can be used to convert the high frequency control signal output from the controller to a powered skateboard. It is configured to be able to transmit to the control means via the body of the operator riding on the vehicle.

According to a second aspect of the present invention, the portable controller has a grip for holding with one hand, and the grip is formed with an electrode to which a high-frequency control signal output from a control circuit is supplied, and is provided near the grip. Is provided with operation means capable of continuously variable input.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A control device for a powered skateboard according to the present invention will be described below in detail with reference to the drawings showing an embodiment thereof.

1, 2, 3, and 4, reference numeral 1 denotes a powered skateboard. On the lower surface of the skateboard main body 2, front and rear rollers 31 and 32, a battery 33, a drive motor 34, and control means , A control signal receiving unit 42 as demodulation means, and an electrode plate 41 for receiving a control signal. The pilot M rides on the skateboard main body 2 while holding the control device 9 in his hand, and steers. The electrode plate 41 attached to the lower surface of the skateboard main body is connected to the input terminal of the control signal receiving section 42. As shown in FIGS.
4 is provided integrally with the base 321 of the rear roller 32. A rubber buffer 7 is interposed between the base 321 and the board body 2.

Reference numeral 9 denotes a control device. As shown in FIG. 5, a control switch 9 as operation means is provided.
1 and a control lever 92, and a control circuit 93 and a modulation circuit 94 as control means. By squeezing the control lever 92,
From the control circuit 93, a control signal having information proportional to the aperture of the control lever 92 is output. This control signal modulates a signal of about 300 kHz in the modulation circuit 94, and the modulated weak high-frequency signal is supplied to the grip 95.
Is supplied to the electrode 96 provided to be exposed on the surface of the substrate. Accordingly, when the driver M operates the control switch 91 and the control lever 92 while gripping the grip 95, a high-frequency signal is transmitted from the electrode 96 to the electrode plate 51 via the human body of the driver M. The high-frequency signal is modulated by a control signal, and the human body touching the electrode 96 is a conductor for the high-frequency signal.
6 and the human body will have high frequency signals of approximately the same potential. Here, since the sole of the operator's foot on the skateboard main body 2 and the electrode plate 51 always face almost in parallel, the stray capacitance and the skateboard main body 2 and other dielectrics are interposed therebetween. There will be a capacitance between the two poles. Since the main high-frequency signal is transmitted by the capacitance between the two poles, the above-described transmission circuit based on the capacitance between the two poles is not formed unless the operator rides on the skateboard main body 2, thereby further improving safety. did it. Further, in order to prevent a malfunction caused by transmitting a high-frequency signal through a path other than the transmission circuit based on the capacitance between the two poles, the control device 9 includes a power supply so that a high-frequency output does not fluctuate due to a fluctuation in battery voltage. It has a compensation circuit for voltage fluctuations.

[0010] Various modulation schemes can be adopted for the control signal. For example, various methods such as an FSK modulation method for switching frequencies in several stages, an FM modulation method, an AM modulation method, and tone burst modulation can be adopted. Naturally, it is assumed that the demodulation method in the control signal receiving section 42 corresponds to the modulation method. In any case, it is preferable that the controllable distance be about several tens cm or less from the operator.

In FIG. 6 showing a circuit configuration around the control circuit 43, a high-frequency control signal received by the electrode plate 41 is amplified by a control signal receiving section 42, demodulated into a control signal, and sent to the control circuit 43. Is entered. Control circuit 43
Only when the demodulated control signal is input, the power supply from the battery 33 to the drive motor 34 is controlled by a power control circuit using a semiconductor such as a power FET. Since the control signal includes information corresponding to the aperture of the control lever 92, the rotation speed of the drive motor 34 is stepwise or continuously adjusted in accordance with the aperture of the control lever 92. It is controlled to increase or decrease. Further, when the control signal is not received, the demodulated signal is not output from the control signal receiving unit 42. Therefore, the control circuit 43 stops the power supply to the drive motor 34 by the safety circuit provided alone, and the terminal of the drive motor 34 By executing a brake program that stops in the shortest time including a short circuit, and performing braking control until communication is resumed again, safety measures were taken to prevent the system from operating alone. That is, the electrode plate 4 is moved through the operator's body.
Only when the control signal is transmitted to 1, power is supplied to the drive motor 34, and the transmission of the signal is interrupted in either the control device 9 and the human body, or between the human body and the electrode plate 41. Then, power is not supplied to the drive motor 34. Therefore, when the operator does not ride on the skateboard, even if he tries to start by operating the control device 9, the driving motor does not rotate, so that it is safe. In addition, when a person falls down from the skateboard due to danger or failure while riding, the electrode plate 41 and the human body are separated, so the power to the drive motor is cut off, and the skateboard runs away. Stop at a safe distance of a few meters without doing. In addition, when power is not supplied to the drive motor, if the terminal of the drive motor is controlled to be short-circuited, a self-braking operation is effected, so that the motor is more reliably stopped.

With the above configuration, when the operator operates the control device 9 while riding the skateboard, a predetermined power is supplied to the drive motor 34 by the motor control circuit 43, so that the speed can be controlled according to the intention of the operator. It is. The direction of travel is controlled by changing the direction of the rollers by tilting the board by shifting the weight.

The thrust generating means is not limited to the electric motor, but may be an engine using petroleum gauge fuel. Also,
The operating means is not limited to the lever type, and may be a type which can be operated with one hand similar to the lever type and has a digital signal input mechanism such as a rotary digital switch or an analog signal input mechanism. Further, the receiving electrode is not limited to the electrode plate, but may be a wire or the like. In addition, the arrangement location is not limited to the back surface of the skateboard body, and may be arranged on the front surface or side surface. Further, the frequency is not limited to around 300 kHz, and a VLF band to a VHF band can be used. However, the use of a region having a relatively low frequency is more stable in transfer characteristics (flying distance). Further, the shape of the control device 9 is not limited to the illustrated shape, and may be a bar shape or a glove shape as long as the control device 9 has excellent operability while riding on the skateboard body.

[0014]

According to the first aspect of the present invention, when the driver is not riding, the skateboard does not start carelessly and is safe, and even when the driver gets down or falls down, the skateboard is automatically turned on. It is safe because it stops.

[Brief description of the drawings]

FIG. 1 is a perspective view of a motorized skateboard according to an embodiment of the present invention in use.

FIG. 2 is a bottom view of a main part of the powered skateboard.

FIG. 3 is a perspective view of a main part of the powered skateboard.

FIG. 4 is a side view of a main part of the powered skateboard.

FIG. 5 is a configuration diagram of a control device.

FIG. 6 is a configuration diagram of a control circuit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Powered skateboard 2 Skateboard main body 31 Roller 32 Roller 321 Base 33 Battery 34 Drive motor 4 Control circuit 41 Electrode plate 42 Control signal receiving section 7 Buffer 9 Control device 91 Control switch 92 Control lever 93 Control circuit 94 Modulation circuit 95 grip 96 electrode

Claims (2)

[Claims] 1. A skateboard control device comprising a propulsion force generating means and a control means for controlling the propulsion force generation means, wherein the portable controller includes an operation means operated by an operator and an operation means. Control means for outputting a high-frequency control signal by being operated, and an electrode to which the output high-frequency control signal is supplied is arranged so as to be exposed on the surface of the controller; A high-frequency detector capable of detecting the high-frequency control signal is provided in the vicinity of a portion on which a foot is to be placed, and the high-frequency control signal detected by the high-frequency detector is demodulated and the thrust generating means is provided via the control means. A demodulating means for outputting a control signal for controlling the skateboard with a motorized skateboard. Control device skateboard with power, characterized in that it is configured to be transmitted to the control means via the pilot's body riding on de. 2. A portable controller comprising a grip for holding with one hand, an electrode to which a high-frequency control signal output from a control circuit is supplied, and a continuously variable input near the grip. The control device of a powered skateboard according to claim 1, characterized in that possible operating means are provided.