JP2000179207A - Control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easily usable control device which surely enables locking and unlocking according to an operator's will even if malfuction is caused in each element of a control circuit in the control circuit for a lock driving motor used in a two-wheeler such as bicycle or the like for opening and closing an anti-theft lock. SOLUTION: In addition to driving circuits 4, 6 for driving a lock driving motor 1, a motor control device is provided with a detecting means 12 for detecting running and a by-pass circuit 10 for intercepting current application to the motor 1 according to a detection signal obtained by the detecting means 12, whereby running is detected by the detecting means 12 and during running, the current application to the motor 1 is intercepted by the by-pass circuit 10. Thus, even if malfunction is caused in each element of the circuit 10, lock and unlock can be surely performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a lock driving motor used in a motorcycle such as a bicycle and used for opening and closing a lock for preventing theft.

[0002]

2. Description of the Related Art In recent years, in terms of security and operability,
There is an increasing demand for a locking mechanism that is reliable and easy to use even for two-wheeled vehicles such as bicycles, and various types have been proposed that perform these controls using a motor or the like in addition to manual operation.

[0003] Such a conventional lock drive motor control device will be described with reference to FIG.

FIG. 4 is a circuit diagram of a conventional control device. In FIG. 4, reference numeral 1 denotes a lock driving motor connected to a battery 2, and 3 denotes gears and cams for opening and closing the lock (not shown).
Is a driving circuit for driving the motor 1, and the driving circuit 4 is a transistor 4A for driving the motor 1, a transistor 4B for driving the transistor 4A, and bases of the transistors 4A and 4B. A signal input terminal 5, which is composed of base resistors 4C and 4D for limiting current and bias resistors 4E and 4F for stably operating the transistors 4A and 4B, is connected to a locking signal.

[0005] Reference numeral 6 denotes a reverse drive circuit for driving the motor 1 in the direction opposite to that of the drive circuit 4, and similarly to the drive circuit 4, transistors 6A and 6B, base resistors 6C and 6D,
A signal input terminal 7, which includes bias resistors 6E and 6F and receives an unlocking signal, is connected.

The transistors 4B and 6B have a large current flowing through the motor 1, and the transistors 4A and 6A
It is used when the current cannot be sufficiently driven with only the current amplification factor. When the current of the motor 1 is small, the driving circuits 4 and 6 can be configured by omitting these components.

In the above configuration, when a locking signal is input to the signal input terminal 5 from an external transmitter, the base potential of the transistor 4B decreases and turns on, and the base potential of the transistor 4A increases and turns on. Because
Electric current flows through the motor 1 and rotates, and the gears and cams of the operating unit 3 connected to the shaft (not shown) of the motor 1 operate to lock a motorcycle such as a bicycle.

When a different unlocking signal is input to the signal input terminal 7, the transistors 6 A and 6 B of the drive circuit 6 are turned on, and the signal is input to the signal input terminal 5. In this case, the motor 1 rotates in the opposite direction to the case where the operation unit 3 operates in the opposite direction to unlock the motorcycle.

The signal input terminals 5 and 7 are configured to output signals to the drive circuits 4 and 6 only until the locking and unlocking are safely completed.

[0010]

However, in the above-mentioned conventional control device, since the drive circuits 4 and 6 directly drive the motor 1 by the signals input to the signal input terminals 5 and 7, the erroneous control device is not used. When a malfunction occurs in each element such as the transistors 4A, 4B, 6A, and 6B due to a signal or the like, there is a problem that locking and unlocking are performed regardless of the operator's intention.

The present invention solves such a conventional problem. Even if a malfunction occurs in each element of a drive circuit for driving a motor, locking and unlocking can be reliably performed according to the intention of the operator. An object of the present invention is to provide an easy-to-use lock driving motor control device that can be unlocked.

[0012]

In order to achieve the above object, the present invention provides a driving circuit for driving a motor for driving a lock, and a detecting means for detecting that the vehicle is running.
The control device is provided with a bypass circuit that cuts off the power supply to the motor in accordance with the detection signal obtained by the detection means.

[0013] Thus, it is possible to obtain an easy-to-use lock driving motor control device capable of securely locking and unlocking according to the operator's intention even when each element of the circuit malfunctions. it can.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention detects a lock driving motor connected to a power supply, a driving circuit for driving the motor, and a running state. And a control device for the lock driving motor comprising a bypass circuit for interrupting the power supply to the motor in accordance with the detection signal obtained by the detection means. The detection means detects the traveling state. Along with
When running, the bypass circuit cuts off the current to the motor, so even if each element of the circuit malfunctions, it can be locked and unlocked in a state that suits the operator's will. This has the effect that an easy-to-use motor control device can be obtained.

According to a second aspect of the present invention, in the first aspect of the present invention, a current limiting resistor is connected between the motor and the drive circuit, and an overcurrent is applied to an element such as a transistor of the bypass circuit. And the operation of the bypass circuit can be stabilized.

According to a third aspect of the present invention, in the second aspect of the invention, the resistance value of the current limiting resistor is smaller than the internal resistance value of the motor. By setting the resistance value, an element such as a transistor in a bypass circuit has a small allowable current and can be inexpensive.

According to a fourth aspect of the present invention, in the first aspect of the invention, the detecting means for detecting that the vehicle is in a traveling state detects vibration generated during traveling. This is a vibration sensor. By using a motor control device and a small vibration sensor that can be mounted in the receiver to which it is attached, the motor control device and the receiver can be made compact. Have.

According to a fifth aspect of the present invention, there is provided the power generation system according to any one of the first to third aspects, wherein the detecting means for detecting that the vehicle is running is provided near an axle or a wheel. The use of a generator for lighting or the like which is normally provided for a motorcycle such as a bicycle usually has an effect that an inexpensive control device can be obtained.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. The same components as those described in the section of the related art are denoted by the same reference numerals, and detailed description will be omitted.

(Embodiment 1) FIG. 1 is a circuit diagram of a control device according to Embodiment 1 of the present invention.
Reference numeral denotes a motor for driving a lock connected to the battery 2, and reference numeral 3 denotes an operation unit including gears and cams (not shown) for opening and closing the lock. A signal input terminal 5 to which a signal for locking is input is connected. The drive circuit 4 includes a transistor 4A for driving the motor 1, a transistor 4B for driving the transistor 4A, base resistors 4C and 4D for limiting their base currents, and a bias for stably operating them. The configuration made up of the resistors 4E and 4F is the same as that of the prior art.

A signal input terminal 7 to which a signal for unlocking is input is connected.
Is driven by a reverse drive circuit 6 for driving the transistors 6A,
6B, base resistors 6C and 6D, bias resistors 6E and 6F
Is also the same as in the prior art, except that the motor 1 is connected to a bypass circuit 10 composed of a transistor 10A for cutting off the current supply to the motor 1 and a limiting resistor 10B. I have.

The bypass circuit 10 has a diode 11 for half-wave rectifying the AC voltage from the detecting means.
A, a detection resistor composed of a limiting resistor 11C for charging the capacitor 11B with electric charge, a Zener diode 11D for clamping the voltage from the traveling detecting means, and a discharge resistor 11E for discharging the electric charge charged by the capacitor 11B. The circuit 11 is connected.

The detection circuit 11 is connected to a generator (not shown) for lighting or the like mounted near an axle or wheels of a two-wheeled vehicle such as a bicycle to detect that the vehicle is in a running state. A signal input terminal 13 for inputting a detection signal from the detection means 12 is connected to form a motor control device.

As a bypass element of the bypass circuit 10, a field effect transistor (FET) or a relay may be used instead of the transistor 10A.

In the above configuration, when a locking signal is input from the external transmitter to the signal input terminal 5, the base potential of the transistor 4B is lowered and turned on, so that the base potential of the transistor 4A is increased. When the motor is turned on, the gears and cams of the operating unit 3 connected to the shaft (not shown) of the motor 1 are operated to lock a motorcycle such as a bicycle. However, at this time, when the two-wheeled vehicle is running, a voltage which is a detection signal from the detection means 12 connected to a generator for lighting or the like is input to the signal input terminal 13. .

Then, this voltage is applied to the diode 11A through the signal input terminal 13 to be half-wave rectified, charged in the capacitor 11B through the limiting resistor 11C, and this charge is applied to the transistor 10A of the bypass circuit 10 through the discharging resistor 11E. , The transistor 10A is turned on, and the collector current flows so as to cut off the current supply to the motor 1, so that the current flowing through the motor 1 is reduced. Therefore, the motor 1 does not rotate and the motorcycle is not locked. Is configured.

Conversely, when the motorcycle such as a bicycle is stopped and the generator is not operating, the voltage as the detection signal is not input to the signal input terminal 13, so that the detection circuit 11 or The operation of the detecting means 12 is not performed, and the motor 1 rotates to lock the motorcycle.

Similarly, a signal for unlocking is input to the signal input terminal 7, and the transistors 6A, 6B
Is turned on, the motor 1 rotates in the opposite direction to the above case, and the operating unit 3 operates in the opposite direction to unlock the motorcycle. The configuration is such that the bypass circuit 10 is operated by 12 so that the power supply to the motor 1 is cut off and unlocking is not performed.

As described above, according to the present embodiment, in addition to the driving circuits 4 and 6 for driving the motor 1 for driving the lock, the detecting means 12 for detecting that the vehicle is in the running state, and the detecting means 12 A bypass circuit 10 that cuts off the power supply to the motor 1 based on the obtained detection signal is provided.
Since the power supply to the motor 1 is cut off by the bypass circuit 10 during traveling, even if a malfunction occurs in each element of the circuit, the locking and unlocking can be reliably performed in a state according to the will of the operator. A possible and easy-to-use motor control device can be obtained.

A detecting means 1 for detecting the running of a generator for lighting or the like which is usually provided on a motorcycle such as a bicycle.
By using as 2, the control device can be made inexpensive.

(Embodiment 2) FIG. 2 is a circuit diagram of a control device according to Embodiment 2 of the present invention. In FIG. 2, a lock driving motor 1 connected to a battery 2 6 is connected to the motor 1
As in the case of the first embodiment, a detection circuit 11 connected to a detection circuit 11 and a generator (not shown) for detecting traveling is connected via a bypass circuit 14 composed of a transistor 14A. But the current limiting resistor 15
Is not the collector side of the transistor 14A, but the motor 1
And drive circuits 4 and 6.

In the above configuration, when the locking signal is input from the external transmitter to the signal input terminals 5 and 7 and the motorcycle is running, the bypass circuit 14 operates to lock and unlock the motorcycle. The configuration in which locking is not performed is the same as that of the first embodiment, but the current limiting resistor 15 is used.
Thus, the impedance of the transistor 14A is reduced, so that almost no current flows to the motor 1 so that the power supply to the motor 1 can be surely cut off.

As described above, according to the present embodiment, the transistor 14A of the bypass circuit 14 is connected by connecting the current limiting resistor 15 between the motor 1 and the drive circuits 4 and 6.
Overcurrent is prevented from flowing through the bypass circuit 14.
Can be stabilized.

Further, by setting the resistance value of the current limiting resistor 15 to an appropriate value smaller than the internal resistance value of the motor 1, the transistor 14A of the bypass circuit 14 has a small allowable current and is inexpensive. You can also.

In the above description, a configuration has been described in which the detecting means for detecting traveling is a generator for lighting or the like mounted near the axle or wheel of a motorcycle such as a bicycle, as shown in FIG. In addition, a small vibration sensor 16 for detecting vibration generated during traveling is provided as a detecting means,
The vibration sensor 16 turns ON / OFF the switch 17A of the detection circuit 17 due to the vibration during the running of the motorcycle, whereby the current flows to the capacitor 17C through the limiting resistor 17B, and this electric charge flows through the bypass circuit 1 through the discharging resistor 17D.
By operating the fourth transistor 14A, the vibration sensor 16 can be mounted in a motor control device or a receiver to which the vibration sensor 16 is attached, so that the control device and the receiver can be made compact. .

[0036]

As described above, according to the present invention, an easy-to-use lock drive capable of securely locking and unlocking according to the operator's will, even if a malfunction occurs in each element of the circuit. Advantageous effect that a control device for a motor for use can be obtained.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a control device according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram of a control device according to a second embodiment of the present invention.

FIG. 3 is a circuit diagram of a control device using the detection means as a vibration sensor.

FIG. 4 is a circuit diagram of a conventional control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motor 2 Battery 3 Operation part 4, 6 Drive circuit 4A, 4B, 6A, 6B Transistor 4C, 4D, 6C, 6D Base resistance 4E, 4F, 6E, 6F Bias resistance 5, 7 Signal input terminal 10, 14 Bypass circuit 10A , 14A transistor 10B limiting resistor 11, 17 detecting circuit 11A diode 11B, 17C capacitor 11C, 17B limiting resistor 11D Zener diode 11E, 17D discharging resistor 12 detecting means 13 signal input terminal 15 current limiting resistor 16 vibration sensor 17A switch

Claims (5)

[Claims] 1. A lock driving motor connected to a power supply,
A control device comprising: a drive circuit for driving the motor; detection means for detecting that the vehicle is in a running state; and a bypass circuit for interrupting power supply to the motor by a detection signal obtained by the detection means. 2. The control device according to claim 1, wherein a current limiting resistor is connected between the motor and the drive circuit. 3. The control device according to claim 2, wherein the resistance value of the current limiting resistor is smaller than the internal resistance value of the motor. 4. The control device according to claim 1, wherein the detecting means for detecting the running state is a vibration sensor for detecting vibration generated during running. 5. The control device according to claim 1, wherein the detecting means for detecting the running state is a generator mounted near an axle or a wheel.