KR100451662B1 - Control apparatus for an electrical scooter - Google Patents

Abstract

The present invention relates to a control apparatus of an electric scooter, comprising a power supply unit, a key operating unit, a motor driving unit, and a control unit of an electric scooter including a constant voltage unit, an overcurrent detection unit, a motor overheat detection unit, a battery capacity detection unit, The display part, the protection circuit part, the sound output part, the anti-theft part, and the charging control part further include a configuration in which the driving speed of the motor can be set digitally at predetermined level intervals, and the overcurrent flowing through the motor and the motor By detecting the temperature of the motor, if there is an error in the motor can protect the device, has the anti-theft function, easy to charge the battery, and has a variety of display functions.

Description

Control apparatus for an electric scooter {Control apparatus for an electrical scooter}

The present invention relates to a control device of an electric scooter.

The electric scooter is a small two-wheel moving means that moves by driving a motor by a battery.

The control apparatus of the conventional electric scooter has a power supply part, a key operation part, a control part, a motor drive part, and a display part.

The power unit applies driving power to the scooter, the key operation unit receives various key inputs for controlling the scooter, the motor driving unit drives the motor of the scooter, and the display unit displays various operation states of the scooter, and the control unit Controls the whole device.

That is, the scooter is moved by driving the motor by controlling the motor driving unit through the control unit by operating the key through the key operation unit while the power of the scooter is turned on (ON) by the power supply unit. In addition, various scooter operating states are displayed through the display unit.

However, since the control apparatus of the conventional electric scooter has a simple function, the present inventor can digitally set the driving speed of the motor at predetermined level intervals, and detect the overcurrent flowing in the motor and the temperature of the motor to detect the motor. If there is an error, the device can be protected, has an anti-theft function, easy to charge the battery, and the need for a control device of the electric scooter having a variety of display functions.

The present invention has been invented to achieve the above object, and an object thereof is to provide a control apparatus for an electric scooter that can digitally set the driving speed of the motor at predetermined level intervals.

Still another object of the present invention is to provide an electric scooter control device capable of protecting the device in case of abnormality in the motor by detecting an overcurrent flowing in the motor and the temperature of the motor.

Still another object of the present invention is to provide a control apparatus for an electric scooter having an anti-theft function.

Still another object of the present invention is to provide a control device of an electric scooter that facilitates battery charging.

Still another object of the present invention is to provide a control apparatus for an electric scooter having various display functions.

1 is a block diagram according to an embodiment of a control apparatus of an electric scooter according to the present invention;

Figure 2 is a flow chart for the motor drive of the control device of the electric scooter according to the invention

Figure 3 is a flow chart for theft alarm generation of the control device of the electric scooter according to the invention

<Description of the symbols for the main parts of the drawings>

100: power supply unit 110: constant voltage unit

120: key operation unit 130: motor drive unit

140: overcurrent detection unit 150: motor overheat detection unit

160: battery capacity detection unit 160 170: display unit

180: protection circuit unit 190: sound output unit

200: anti-theft unit 210: charge control unit

220: control unit

According to an aspect of the control apparatus of the electric scooter according to the present invention for achieving the above object, the control unit of the electric scooter according to the present invention includes a power source including a charging battery for applying a scooter driving power, and to the scooter A key operation unit including a power on / off switch for applying power, a speed up / down switch for digitally setting the drive speed of the motor at predetermined level intervals, and a speed up / down switch set in the key operation unit. The motor drive unit for driving the scooter driving motor according to the pulse width modulation (PWM) method according to the predetermined level interval unit speed, and the digital speed set by the speed up / down switch of the key control unit in the predetermined level interval unit Outputting a pulse corresponding to the speed level according to the above to drive the driving motor of the scooter in a pulse width modulation (PWM) method An apparatus for controlling an electric scooter comprising a control unit for controlling a driving unit, the constant voltage unit converting an input voltage from the power supply unit into a predetermined constant control voltage required by the apparatus, and a traveling speed of a motor driven by the motor driving unit. Is displayed in a predetermined level interval unit, an overcurrent display indicating an overcurrent state when an overcurrent state is detected by the overcurrent detection unit, and a motor overheating state when a motor overheating state is detected by the motor overheat detection unit. A display unit including a motor overheating display unit to display the battery, a battery capacity display unit displaying a battery charge state in units of predetermined levels according to the battery charge capacity detected by the battery capacity detector, and measuring the amount of current flowing through the driving motor of the scooter If over a certain amount, it detects overcurrent condition Is an overcurrent detector, a motor overheat detector for detecting a motor overheat state when the temperature of the drive motor of the scooter is higher than a predetermined temperature, and a battery capacity detector for detecting a charge capacity of a battery by detecting a voltage of a charge battery of the power supply unit. When the overcurrent state detection by the overcurrent detection unit, the motor overheat state detection by the motor overheat detection unit, or the battery discharge state detection by the battery capacity detection unit, the control signal output from the control unit to the motor driver is blocked to protect the circuit. And a warning sound to warn when the switch operation sound of the key operation unit and the overcurrent state detection by the overcurrent detection unit or the motor overheat state detection by the motor overheat detection unit or the battery discharge state detection by the battery capacity detection unit are detected. The sound output unit further includes The anti-theft control unit for controlling the electric scooter according to the present invention to output the burglar alarm sound through the sound output unit when the motor forcibly moves the motor without a predetermined key input by the key operation unit It further comprises.

According to an additional aspect of the control apparatus of the electric scooter according to the present invention, the control unit of the electric scooter according to the present invention includes a memory unit for storing the password for theft prevention inputted from the remote control of the user and the remote control, the remote control; It further comprises a remote control receiver for receiving a password input from the.

According to an additional aspect of the control apparatus of the electric scooter according to the present invention, the control apparatus of the electric scooter according to the present invention is characterized in that the control apparatus of the electric scooter further comprises a charging control unit for charging the charging battery of the power supply unit. do.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce the present invention.

1 is a block diagram according to an embodiment of a control apparatus of an electric scooter according to the present invention.

The control apparatus of the electric scooter according to this embodiment includes a power supply unit 100, a constant voltage unit 110, a key operation unit 120, a motor driving unit 130, an overcurrent detection unit 140, and a motor overheat detection unit 150. ), The battery capacity detection unit 160, the display unit 170, the protection circuit unit 180, the sound output unit 190, the anti-theft unit 200, the charge control unit 210 and the control unit 220. It includes.

The power supply unit 100 applies a scooter driving power. The power supply unit 100 includes a rechargeable battery 101 that can be charged.

The constant voltage unit 110 converts the input voltage from the power supply unit 100 into a predetermined constant control voltage required by the device. That is, the constant voltage unit 110 converts the voltage input from the power supply unit 100 to a predetermined voltage, and provides the constant control voltage required by the device by constantly outputting the converted voltage.

The key operation unit 120 receives various key inputs for controlling the scooter. The key operation unit 120 includes a power on / off switch 121 for applying power to the scooter, and a speed up / down switch 122 for digitally setting the drive speed of the motor at predetermined level intervals.

For example, the driving speed of the motor may be set at predetermined level intervals. For example, if the driving speed is increased / decreased by 5 km / h each time the speed up / down switch is pressed, the scooter driver may control the key operation unit ( When the speed up switch of 120 is pressed once, the driving speed of the motor is increased by a predetermined level such as 5 km / h, twice when pressed 10 km / h, and three times when pressed 15 km / h. At this time, it is desirable to limit the maximum speed in consideration of safety. On the other hand, when the speed down switch is pressed once, the driving speed decreases at the set interval of 5 km / h.

The key manipulation unit 120 may be variously configured in the form of a digital on / off switch or a touch pad.

The motor driving unit 130 drives the driving motor of the scooter in a pulse width modulation (PWM) manner according to a predetermined level interval unit speed set by the speed up / down switch 122 of the key manipulation unit 120. That is, the motor driver 130 outputs a waveform having a pulse width corresponding to the speed as a drive signal to the motor according to the operation of the speed up / down switch 122 of the key manipulation unit 120 to rotate the motor. By controlling the speed, the scooter is driven at the speed set by the key control unit.

The overcurrent detection unit 140 measures the amount of current flowing through the drive motor of the scooter and detects an overcurrent state when the current exceeds a predetermined amount. That is, the overcurrent detection unit 140 measures the amount of current flowing through the drive motor, and outputs a signal indicating that the current is in an overcurrent state when the measured current amount is less than a predetermined amount and when the measured current amount is less than a predetermined amount.

The motor overheat detection unit 150 measures the temperature of the drive motor of the scooter and detects that the motor is overheated if it is above a predetermined temperature. That is, the motor overheat detection unit 150 measures the temperature of the drive motor by using a temperature sensor such as a thermistor, and outputs a signal indicating that the motor is overheated when the measured temperature is lower than a predetermined temperature. do.

The battery capacity detecting unit 160 detects the voltage of the charging battery of the power supply unit 100 to detect the charging capacity of the battery. The battery capacity detecting unit 160 detects the charging capacity according to the voltage value across the battery and outputs the detected value.

The display unit 170 displays various operation states of the scooter, and includes a driving speed display unit 171, an overcurrent display unit 172, a motor overheat display unit 173, and a battery capacity display unit 174.

The traveling speed display unit 171 displays the traveling speed of the motor driven by the motor driver 130 in predetermined level intervals. The traveling speed display unit 171 may be implemented in various ways such as varying the number of LEDs to be lit according to the traveling speed by using a plurality of LEDs, or displaying the speed corresponding to the corresponding level by numbers on the LCD.

The overcurrent display unit 172 indicates an overcurrent state when the overcurrent state is detected by the overcurrent detection unit 140. The overcurrent display unit 172 preferably turns on or off by using one LED to display a normal state or an overcurrent state.

The motor overheat display unit 173 indicates that the motor overheat state is detected when the motor overheat state is detected by the motor overheat detection unit 150. The motor overheat display unit 173 preferably turns on or off by using one LED to display the normal state or the motor overheat state.

The battery capacity display unit 174 displays the battery charge state in predetermined level units according to the battery charge capacity detected by the battery capacity detection unit 160. The battery capacity display unit 174 preferably uses a plurality of LEDs to display a different number of LEDs that are turned on depending on the degree of battery charging.

The protection circuit unit 180 may detect the overcurrent state by the overcurrent detection unit 140, the motor overheat state detection by the motor overheat detection unit 150, or the battery discharge state detection by the battery capacity detection unit 160. The control signal output from the 220 to the motor driving unit 130 is blocked to protect the circuit. That is, the protection circuit unit 180 protects the circuit by stopping the output of the signal from the control unit 220 to the motor driving unit 130 when there is an error in the device.

The sound output unit 190 is a switch operation sound of the key operation unit 120, the overcurrent state detection by the overcurrent detection unit 140 or the motor overheat state detection by the motor overheat detection unit 150 or the battery capacity detection unit When the battery discharge state is detected by the 160, a warning sound for warning this is output.

The anti-theft unit 200 controls the anti-theft alarm to be output through the sound output unit 190 when the scooter is forcibly moved by the key operation unit 120 without a predetermined key input. The anti-theft unit 200, for example, by installing a shock sensor at a predetermined position of the scooter to output the theft signal when the scooter is moved without a predetermined key input to cause the theft alarm sound through the sound output unit.

On the other hand, the anti-theft unit 200 further includes a memory unit 201 storing a password for preventing theft input from the user's remote control, and a remote control receiving unit 202 receiving a password input from the remote control.

That is, in this case, a predetermined key input for determining whether the theft is received is input through the remote controller without being input through the key manipulation unit 120.

The charging control unit 210 charges the charging battery of the power supply unit 100. The charging control unit 210 is described in the utility model registration application filed by the applicant as the same, the power input unit for applying commercial AC power, and the voltage of the power input from the power input unit is converted into a battery charge level voltage and output A transformer, a rectifier for rectifying the transformed AC power output by the transformer into a DC power source, a reference voltage setting unit for setting a reference voltage by constantly maintaining an output voltage even when an input current changes, and When the voltage is less than the reference voltage set by the reference voltage setting unit is applied between the charge control unit for charging the battery by applying the voltage output by the rectifier and the charge control unit and the reference voltage setting unit connected to display the state of charge of the battery It includes a charging indicator to compare the reference voltage with the battery charging voltage. Is larger than the battery charging voltage to a to charge the battery by applying a voltage transformer to the battery charge level voltage from the commercial power supply input to the battery.

The control unit 220 controls the overall apparatus, and the speed level up / down switch 122 of the key control unit 120 to the speed level in accordance with the set speed of the digital motor set by the predetermined level interval unit. And outputting a corresponding pulse to control the motor driver 130 to drive the driving motor of the scooter in a pulse width modulation (PWM) manner.

2 is a flow chart of the motor drive of the control apparatus of the electric scooter according to the present invention, with reference to this it will be described the motor control operation of the electric scooter control apparatus according to the present invention.

First, when it is determined that the power is turned on (ON) by the power on / off switch 121 of the key control unit 120 in step S100, in step S110 under the control of the control unit 220 The charge control unit 210 determines whether the battery charge capacity detected by the battery capacity detection unit 160 is greater than or equal to a predetermined value, and if it is greater than or equal to a predetermined value, determines whether to charge the battery if it is not greater than or equal to the predetermined value. To charge or shut down the battery. In this case, although not shown in the drawing, the charge capacity of the battery may be displayed through the battery charge capacity display unit 174 of the display unit 170.

Under the control of the control unit 220 in step S120 detects the motor overcurrent state by the overcurrent detection unit 140, if the motor is not in the overcurrent state, and proceeds to the next step, and outputs to the motor driver 130 in the motor overcurrent state To stop the motor. At this time, although not shown in the drawing may further include displaying the motor overcurrent state through the overcurrent display unit 172 of the display unit 170 before the motor stops.

In step S130, under the control of the control unit 220, the motor overheat detection unit 150 detects a motor overheating state, and if the motor overheating state is not reached, goes to the next step. Shut off the output to stop the motor. At this time, although not shown in the drawing may further include displaying the motor overheat state through the motor overheat display unit 173 of the display unit 170 before the motor stops.

In addition, when the motor is detected as an overcurrent state or an overheating state in S120 and S130 in this step, the control signal output from the control unit 220 to the motor driving unit 130 through the protection circuit unit 180 is not shown in the drawing. To protect the circuit.

In step S140, under the control of the control unit 220, the input from the speed up / down switch 122 of the key manipulation unit 120 is determined, and when the speed is up, the speed is set by the motor driving unit 130 according to a predetermined value. On the contrary, if the speed decreases, the speed decreases by a predetermined level according to the set value through the motor driver 130 and then moves to the next step. In this case, the increased or decreased motor driving speed may be displayed through the driving speed display unit 171 of the display unit 170.

In step S150, it is determined whether the power is OFF according to the key operation of the power on / off switch 121 of the key control unit 120, and ends in the case of OFF. Return to S110 and repeat the step.

3 is a flowchart illustrating the theft alarm generation of the control apparatus of the electric scooter according to the present invention. With reference to this, the stolen alarm operation of the electric scooter control apparatus according to the present invention will be described.

First, in step S200, under the control of the controller 220, it is determined whether there is a predetermined key input corresponding to a password from the remote control receiver 202 of the key manipulation unit 120 or the anti-theft unit 200, and there is a key input. In this case, the scooter control operation shown in FIG. 2 is executed, and if there is no key input, a theft alarm is generated through the sound output unit 180 in step S210.

Therefore, it is possible to achieve the object of the control apparatus of the electric scooter according to the present invention as described above by the above.

The control apparatus of the electric scooter according to the present invention as described above can digitally set the driving speed of the motor at predetermined level intervals, and detect the overcurrent flowing through the motor and the temperature of the motor to detect the abnormality of the motor. It can protect the, has the anti-theft function, easy to charge the battery, has a useful effect having a variety of display functions.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that various modifications may be made therein without departing from the scope of the invention, which is covered by the following claims.

Claims (7)

(delete) (delete) And a power on / off switch for applying power to the scooter, a speed up / down switch for digitally setting the drive speed of the motor at predetermined level intervals. A motor driver for driving the scooter's drive motor in a pulse width modulation (PWM) manner according to a key operation unit, a predetermined level interval unit speed set by a speed up / down switch of the key operation unit, and speed up / down of the key operation unit; Control unit for controlling the motor driving unit to drive the drive motor of the scooter in a pulse width modulation (PWM) method by outputting a pulse corresponding to the speed level in accordance with the set speed of the digital motor set by the predetermined level interval unit by a switch In the control device of an electric scooter comprising: A constant voltage section for converting an input voltage from the power supply section into a predetermined constant control voltage required by the apparatus; A traveling speed display unit for displaying the traveling speed of the motor driven by the motor driving unit in predetermined level intervals, an overcurrent display unit displaying an overcurrent state when an overcurrent state is detected by the overcurrent detector, and the motor overheat detector A display unit including a motor overheat display unit for indicating that the motor overheat state is detected when the motor overheat state is detected, a battery capacity display unit for displaying a battery charge state in predetermined level units according to the battery charge capacity detected by the battery capacity detector; An overcurrent detector for measuring an amount of current flowing through the driving motor of the scooter to detect an overcurrent state when the amount of current flows over a predetermined amount; A motor overheat detection unit for measuring a temperature of the driving motor of the scooter and detecting that the motor is overheated when the temperature is higher than a predetermined temperature; A battery capacity detecting unit detecting a charging capacity of the battery by detecting a voltage of the charging battery of the power supply unit; Protection to protect the circuit by cutting the control signal output from the controller to the motor driver when detecting the overcurrent state by the overcurrent detector, detecting the motor overheat state by the motor overheat detector, or detecting the battery discharge state by the battery capacity detector. Circuit part, A sound output unit for outputting a warning sound to warn when the switch operation sound of the key operation unit, the overcurrent state detection by the overcurrent detection unit, the motor overheat state detection by the motor overheat detection unit or the battery discharge state detected by the battery capacity detection unit Control device for an electric scooter, characterized in that the configuration further comprises. The method of claim 3, wherein The electric scooter further comprises an anti-theft control unit for controlling the output of the burglar alarm through the sound output unit when the control unit of the electric scooter forcibly moves the motor without a predetermined key input by the key operation unit. Control device. The method of claim 4, wherein And a memory unit configured to store a password for preventing theft input from the remote controller of the user, and a remote controller receiver configured to receive a password input from the remote controller. (delete) The method of claim 3, wherein The control apparatus of the electric scooter further comprises a charging control unit for charging the charging battery of the power supply unit.