JP2004231009A - Antitheft device of vehicle with prime mover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an antitheft device of a vehicle with a prime mover such as an automobile easily mountable by even a user having little electrical knowledge. <P>SOLUTION: In this device, a reception control unit 2 is connected between a battery 4 and an electric wiring terminal 5 leading to all of a cell motor 6, an ignition coil 7, a key switch 8, a fuse 9 and an other electric circuit 10. The reception control unit 2 is provided with a current limiting part 23 for limiting power quantity from the battery 4 to the electric wiring terminal 5, a reception part 21 for receiving a signal for control to control the current limiting part 23 and a control part 22 for controlling energizing amount limited by the current limiting part 23 based on the signal for control received by the reception part 21. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an anti-theft device for a vehicle with a motor, which prevents the vehicle from being stolen by restricting the starting of a motor (including an electric motor) of a vehicle such as an automobile, an electric vehicle, a motorcycle, and a ship.
[0002]
[Prior art]
2. Description of the Related Art As anti-theft devices for preventing theft of automobiles, for example, those described in Patent Documents 1 and 2 are known. The anti-theft device described in Patent Literature 1 has a relay switch having a normally open contact arranged in series with a wiring connecting a key switch and a self-motor, and receives a predetermined signal sent from a portable transmitter, and Is satisfied, the relay switch is controlled to be closed for a certain period. Thus, if the portable transmitter is not provided, the cell motor does not rotate, so that the engine does not start and theft can be prevented.
[0003]
The anti-theft device described in Patent Document 2 has a control unit disposed between a battery and an ignition coil. The control unit cuts off the connection between the battery and the ignition coil according to the reception state of the signal from the transmitter possessed by the driver of the vehicle. Thus, when the driver's transmitter is away from the vehicle, the ignition coil does not operate, so that the engine does not start and theft can be prevented.
[0004]
[Patent Document 1]
JP 2001-347925 A (Paragraph Nos. 0019, 0020, FIG. 1)
[Patent Document 2]
JP-A-6-340245 (pages 7-9, FIG. 1)
[0005]
[Problems to be solved by the invention]
The anti-theft device described in Patent Document 1 is effective as a method of not starting the starter motor, but since the mounting positions of the starter motor are located in various places depending on the automobile manufacturers, the mounting work is very difficult, and it is difficult for a general user to mount. It is. In addition, since there are various types of connectors on the key switch side and the self-motor side, dedicated connectors must be prepared for each model or each manufacturer.
[0006]
Although the anti-theft device described in Patent Document 2 is effective as a method of not starting the engine, it requires the work of cutting the wiring to the ignition coil and providing a terminal at the cut portion of the wiring when mounting. Become. Since this operation requires at least the ability to distinguish the wiring from the battery to the ignition coil, it is also difficult for a general user to attach the wiring.
[0007]
Therefore, an object of the present invention is to provide an anti-theft device for a vehicle with a motor, such as an automobile, to which a user having little electrical knowledge can easily attach.
[0008]
[Means for Solving the Problems]
The anti-theft device of the present invention is connected between at least a power supply and an electric wiring terminal connected to at least an electric circuit for starting a prime mover among electric wiring terminals connected to an anode terminal of the power supply. A current limiting unit that limits the amount of current flowing between the current limiting unit, a receiving unit that receives a control signal for controlling the current limiting unit, and a current that is limited by the current limiting unit based on the control signal received by the receiving unit. And a control unit for controlling the amount.
[0009]
The mounting of the anti-theft device of the present invention on a vehicle reveals all the electric wiring terminals connected to the anode terminal of the power supply of the existing vehicle or the electric wiring terminals leading to the electric circuit for starting the motor of the vehicle. In this case, remove at least the electric wiring terminal that leads to the electric circuit for starting the prime mover, connect the removed electric wiring terminal to one terminal of the current limiting section, and connect the other terminal of the current limiting section to the power supply. Only need to be connected to the anode terminal.
[0010]
In the vehicle equipped with the anti-theft device of the present invention, when the control unit determines that the legitimate user is away from the vehicle based on the reception state of the control signal received by the reception unit, the control unit limits the current user. The amount of energization is controlled to such an extent that the electric circuit for starting the prime mover does not operate, and does not hinder the operation of the electric circuit other than starting the prime mover. On the other hand, when the control unit determines that the legitimate user starts the vehicle based on the reception state of the control signal received by the reception unit, the control unit performs control so as to release the restriction on the amount of power supply by the current restriction unit.
[0011]
That is, the anti-theft device of the present invention is designed so that even a user with little electric knowledge can easily install it, so that all the electric wiring terminals originally connected to the anode terminal of the power supply of the existing vehicle are used. Alternatively, it can be used simply by connecting at least an electric wiring terminal leading to an electric circuit for starting the prime mover. According to the antitheft device of the present invention, when a legitimate user is away from the vehicle, necessary electric circuits other than starting the prime mover operate, but the electric circuit for starting the prime mover does not operate. Therefore, the prime mover cannot be started.
[0012]
It is desirable that the anti-theft device of the present invention includes a cover that covers the entire connection portion between the current limiting portion and the electric wiring terminal. As a result, the electric wiring terminal originally connected to the anode terminal of the power supply is covered with the cover, so that the electric wiring terminal cannot be easily removed from the current limiting portion and directly connected to the original power supply.
[0013]
Here, the cover is fixed by a screw having a rotatable head only by a special tool, and in this fixed state, the head of the screw is preferably buried inside the surface of the cover. As a result, the cover cannot be opened with a normal tool, and the screw cannot be forcibly opened because the head of the screw is embedded inside the surface of the cover.
[0014]
Further, the antitheft device of the present invention may be configured to be connected between a power supply and a ground wiring terminal. That is, the anti-theft device of the present invention is a current limiting unit that is connected between a power supply and a ground wiring terminal connected to a cathode terminal of the power supply, and limits the amount of electricity between the power supply and the ground wiring terminal. And a receiving unit that receives a control signal for controlling the current limiting unit, and a control unit that controls the amount of current to be limited by the current limiting unit based on the control signal received by the receiving unit. You can also.
[0015]
In the case of the anti-theft device of the present invention, mounting to the vehicle is performed by removing all ground wiring terminals connected to the cathode terminal of the power supply of the vehicle, and replacing the removed ground wiring terminal with one terminal of the current limiting unit. , And the other terminal of the current limiting unit and the cathode terminal of the power supply need only be connected, so that even a user who has little electrical knowledge can easily perform the connection.
[0016]
Further, in the vehicle equipped with the anti-theft device, when the control unit determines that the legitimate user is away from the vehicle based on the reception state of the control signal received by the receiving unit, the control unit restricts the current user. The amount of energization is controlled to such an extent that the electric circuit for starting the prime mover does not operate, and does not hinder the operation of the electric circuit other than starting the prime mover. Thus, as described above, when the authorized user is away from the vehicle, necessary electric circuits other than starting the prime mover operate, but the electric circuit for starting the prime mover does not operate. Cannot be started.
[0017]
In addition, in the case of the anti-theft device, by providing a cover that covers the entire connection portion between the current limiting portion and the grounding wiring terminal, the grounding wiring terminal originally connected to the cathode terminal of the power supply is provided. Since the ground wiring terminal is covered with the cover, the ground wiring terminal cannot be removed from the current limiting portion and easily connected directly to the original power supply.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
(Embodiment 1)
FIG. 1 is a schematic configuration diagram showing a use state of the anti-theft device according to the first embodiment of the present invention.
In FIG. 1, an anti-theft device according to a first embodiment of the present invention includes a controller 1 carried by a user of an automobile C powered by an engine (not shown) as a prime mover, and a reception device mounted on the automobile C of the user. It comprises a control unit 2 and an electric connection cable 3 for connecting the reception control unit 2 and a battery 4 as a power source of the vehicle C.
[0019]
The reception control unit 2 is connected using an electric connection cable 3 between an anode terminal 4a of the battery 4 and an electric wiring terminal 5 originally connected to the anode terminal 4a. The cathode terminal 4b of the battery 4 is grounded to a metal part of the body of the vehicle C.
[0020]
The terminal 3a on the connection side of the electric connection cable 3 with the anode terminal 4a has the same shape as the electric wiring terminal 5 so that it can be easily connected to the anode terminal 4a of the battery 4. The terminal 2a on the connection side of the reception control unit 2 with the electric wiring terminal 5 has the same shape as the anode terminal 4a of the battery 4 so that the electric wiring terminal 5 can be easily connected.
[0021]
In the present embodiment, in order to reduce the number of parts, the terminal 3b of the electric connection cable 3 on the connection side with the reception control unit 2 has the same shape as the terminal 3a. The terminal 2b on the connection side has the same shape as the terminal 2a.
[0022]
The electric wiring terminal 5 leads to the starter motor 6, the ignition coil 7, the key switch 8, the fuse 9, and all the other electric circuits 10. The starter motor 6 is an auxiliary power unit for starting the engine, and the electric wiring terminal 5 is connected to an electric circuit for operating the starter motor 6.
[0023]
FIGS. 2A and 2B are views showing a state of attachment of the reception control unit 2 of FIG. 1, wherein FIG. 2A is a perspective view showing a state where attachment is completed, FIG. 2B is a perspective view showing a state where a cover is removed, and FIG. FIG. 2 is an enlarged view of a screw portion of FIG.
[0024]
As shown in FIG. 2, after the reception control unit 2 is attached to the automobile C, it is covered with a cover 2c. The cover 2c covers the entire reception control unit 2 and all of the connection portions of the terminals 2a, 2b, 3b and the electric wiring terminals 5. When the cover 2c is attached, the reception control unit 2, the terminals 2a, 2b, 3b, and the electric wiring terminal 5 cannot be touched at all.
[0025]
The cover 2c is fixed by four screws 2d. The screw 2d has a head 2e that can be rotated only by a special tool (not shown) as shown in FIG. As shown in FIG. 3, the cover 2c is provided with a counterbore 2f for the screw 2d. With the counterbore 2f, the head 2e of the screw 2d is buried inside the surface of the cover 2c when the screw 2d is fixed.
[0026]
FIG. 4 is a functional block diagram of the anti-theft device of FIG.
As shown in FIG. 4, the controller 1 includes a key 11 for inputting an instruction, a control unit 12 for delivering a control signal to a transmission unit 13 described below based on the input content of the key 11, And a transmission unit 13 for transmitting the control signal to the reception control unit 2.
[0027]
The reception control unit 2 includes a reception unit 21 that receives a control signal transmitted from the transmission unit 13 of the controller 1, and an energization amount by a current limiting unit 23 described below based on the content of the control signal received by the reception unit 21. And a current limiting unit 23 that limits the amount of current flow from the terminal 2b to the terminal 2a based on an instruction from the control unit 22.
[0028]
When leaving the automobile C, the user operates the key 11 of the controller 1 to input a lock instruction. When the lock instruction is input by the key 11 of the controller 1 as described above, the control unit 12 delivers a control signal indicating the lock instruction to the transmission unit 13. The transmission unit 13 transmits a control signal indicating the lock instruction received from the control unit 12 to the reception control unit 2.
[0029]
When the receiving unit 21 of the reception control unit 2 receives the control signal indicating the lock instruction, the control unit 22 determines the amount of power to be limited by the current limiting unit 23 based on the control signal indicating the lock instruction. 6 is controlled so as not to operate. However, the control unit 22 controls the amount of current limited by the current limiting unit 23 in addition to the operation of the starter motor 6, such as the operation of the key switch 8, the fuse 9, and the operation of the other electric circuits 10 (clock, radio, etc.). To the extent that does not interfere with
[0030]
As a result, the current limiting unit 23 moves from the terminal 2 b connected to the battery 4 to the terminal 2 a connected to the electric wiring terminal 5 which leads to the starter motor 6, the ignition coil 7, the key switch 8, the fuse 9 and other electric circuits 10. Is limited to such an extent that the starter motor 6 does not operate, so that the engine of the automobile C does not start. In addition, a current that does not hinder the operation of the electric circuit required other than the operation of the starter motor 6 is always supplied from the battery 4 to the electric wiring terminal 5. There is no adverse effect on the electric circuit.
[0031]
The battery 4 of the automobile C is at a position where it can be seen from above when the hood is opened even if the maker or the vehicle type is different. The anode terminal 4a of the battery 4 and the electric wiring terminal 5 connected to the anode terminal 4 are almost unified, and the reception control unit 2 of the anti-theft device according to the present embodiment also includes the anode terminal 4 and the electric wiring terminal 5. The terminals 2a and 3a are shaped in accordance with the above.
[0032]
Therefore, in the anti-theft device according to the present embodiment, even if the user has little electrical knowledge, the user removes the electric wiring terminals 5 leading to all these electric circuits connected to the anode terminal 4a of the battery 4, By reconnecting to the terminal 2a of the reception control unit 2 and reconnecting the terminal 3a of the electric connection cable 3 connected to the terminal 2b of the reception control unit 2 to the anode terminal 4a of the battery 4 from which the electric wiring terminal 5 has been removed. , Can be easily attached.
[0033]
After the reception control unit 2 is mounted on the vehicle C, the terminals 2a, 2b, 3b and the electric wiring terminals 5 are covered by the cover 2c fixed by screws 2d that can be rotated only by special tools. Cannot easily open the cover 2c. Further, since the head 2e of the screw 2d is embedded inside the surface of the cover 2c, the screw 2d cannot be forcibly opened. Therefore, the electric motor terminal 6 cannot be started by removing the electric wiring terminal 5 from the terminal 2a and directly connecting the electric wiring terminal 5 to the anode terminal 4a of the battery 4.
[0034]
As described above, according to the anti-theft device of the present embodiment, since only the user of the automobile C can start the starter 6, the theft of the automobile C can be prevented.
[0035]
In this embodiment, the electric wiring terminal 5 connected to the terminal 2a of the reception control unit 2 is connected to all of the starter motor 6, the ignition coil 7, the key switch 8, the fuse 9, and the other electric circuits 10. However, if the electric wiring terminal leading to the starter motor 6 is clear, at least the electric wiring terminal leading to the starter 6 may be connected to the terminal 2 a of the reception control unit 2.
[0036]
The amount of current limited by the current limiting unit 23 is not only an amount that does not operate the starter motor 6 but also an amount that does not operate an electric circuit for starting the engine, for example, the ignition coil 7 and the like. You can also. In addition, the number of types of keys 11 of the controller 1 is increased, and the control functions of the control unit 22 of the reception control unit 2 (for example, a door lock function, a warning function such as a sound, an alarm or light, a notification of a state of the vehicle C to a user). It is also possible to further add functions and the like.
[0037]
(Embodiment 2)
FIG. 5 is a schematic configuration diagram showing a use state of the anti-theft device according to the second embodiment of the present invention, and FIG. 6 is a functional block diagram of the anti-theft device of FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.
[0038]
As shown in FIGS. 5 and 6, in the antitheft device according to the second embodiment of the present invention, the reception control unit 2 includes a grounding terminal connected to the cathode terminal 4 b of the battery 4 and a metal part of the body of the automobile C. It is connected to the wiring terminal 30 using the electric connection cable 3. The grounding wiring terminal 30 is originally connected to the cathode terminal 4b of the battery 4, but is connected to the terminal 2b of the reception control unit 2 in the present embodiment. The terminals 3a and 3b of the electric connection cable 3 are connected to the terminal 2a of the reception control unit 2 and the cathode terminal 4b of the battery 4, respectively.
[0039]
In such a connection form, the current control unit 23 of the reception control unit 2 functions as a unit that limits the amount of current flow between the battery 4 and the ground wiring terminal 30. Each functional configuration of the receiving unit 21 and the control unit 22 is the same as in the first embodiment.
[0040]
Although not shown, after the reception control unit 2 is attached to the automobile C, the cover 2c similar to that of the first embodiment includes the entire reception control unit 2, the terminals 2a, 2b, 3a, and the ground wiring terminal 30. Is attached so as to cover all of the connection parts. After the attachment, it is fixed by a screw 2d having a rotatable head 2e only by a special tool, as in the first embodiment.
[0041]
Also in the anti-theft device having the above configuration, the control unit 22 of the reception control unit 2 operates the cell motor 6 to control the amount of current to be limited by the current limiting unit 23 based on the control signal indicating the lock instruction received by the reception unit 21. The control is performed to such an extent that the engine does not start. Note that the current limiting unit 23 is configured to constantly flow a current between the cathode terminal 4b of the battery 4 and the grounding wiring terminal 30 such that an electric circuit required for operation other than starting of the engine operates. Are the same as in the first embodiment.
[0042]
The attachment to the car C is possible even if the user has little electric knowledge. By removing all the grounding wiring terminals 30 connected to the cathode terminal 4b of the battery 4, the terminal of the reception control unit 2 is removed. 2b, and the terminal 3b of the electric connection cable 3 connected to the terminal 2a of the reception control unit 2 can be easily replaced by the connection to the cathode terminal 4b of the battery 4 from which the ground wiring terminal 30 has been removed.
[0043]
After the reception control unit 2 is mounted on the vehicle C, the terminals 2a, 2b, 3a and the grounding wiring terminal 30 are covered by the cover 2c. 4b, and the starter 6 cannot be started.
[0044]
As described above, in the anti-theft device according to the second embodiment, similarly to the anti-theft device according to the first embodiment, when an authorized user is away from the vehicle, necessary other than starting the engine is required. The electric circuit operates, but the electric circuit for starting the engine does not operate, so that only authorized users can start the engine. Thereby, the theft of the car C can be prevented.
[0045]
In the first and second embodiments, the engine started by the starter motor 6 has been described as an example of a prime mover. However, in a vehicle such as an electric vehicle driven by an electric motor (motor) as a prime mover, the electric wiring terminal 5 is not provided. It is clear that this leads to an electric circuit for starting the motor.
[0046]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0047]
(1) A power supply is connected between at least a power supply terminal and an electric wiring terminal connected to an electric circuit for starting a prime mover among electric wiring terminals connected to an anode terminal of the power supply, and a current is supplied between the power supply and the electric wiring terminal. A current limiter for limiting the amount, a receiver for receiving a control signal for controlling the current limiter, and a control for controlling the amount of current to be limited by the current limiter based on the control signal received by the receiver. The installation on the vehicle requires that all electrical wiring terminals connected to the positive terminal of the power supply of the existing vehicle or the electrical wiring terminals leading to the electrical circuit for starting the motor of the vehicle be installed. If it is clear, remove at least the electrical wiring terminal leading to the electrical circuit for starting the prime mover, connect the removed electrical wiring terminal to one terminal of the current limiting section, Limiting portion of it is only necessary to connect the other terminal and the power supply positive terminal of, and can be attached easily even a user with little electrical knowledge.
[0048]
(2) a current limiter connected between the power supply and the ground wiring terminal connected to the cathode terminal of the power supply for limiting the amount of current between the power supply and the ground wiring terminal; and controlling the current limiter A receiving unit for receiving a control signal for performing the control, and a control unit for controlling the amount of current to be limited by the current limiting unit based on the control signal received by the receiving unit, the attachment to the vehicle, Remove all ground wiring terminals connected to the anode terminal of the existing vehicle power supply, connect the removed ground wiring terminal to one terminal of the current limiter, and connect it to the other terminal of the current limiter. It only needs to be connected to the cathode terminal of the power supply, and even a user who has almost no electrical knowledge can easily attach it.
[0049]
(3) When a legitimate user is away from the vehicle, necessary electric circuits other than starting the prime mover operate, but the electric circuit for starting the prime mover does not operate. The prime mover cannot be started. Thereby, theft of the automobile can be prevented. In addition, a current sufficient for operating an electric circuit other than the starting of the prime mover is always supplied from the power supply to the electric wiring terminals, so that there is no adverse effect on other electric circuits due to the current limitation.
[0050]
(4) By providing a cover that covers the entire connecting portion between the current limiting portion and the electric wiring terminal or a cover that covers the entire connecting portion between the current limiting portion and the grounding wiring terminal, Since the wiring terminal cannot be easily connected directly to the anode terminal or the cathode terminal of the original power supply by removing the wiring terminal from the current limiting portion, theft due to the direct connection can be prevented.
[0051]
(5) The cover is fixed by a screw having a head rotatable only by a special tool. In this fixed state, the head of the screw is buried inside the surface of the cover, so that the cover is Since the screw cannot be opened with a normal tool and the screw cannot be forcibly opened from the front side of the cover, the anti-theft effect can be further enhanced.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a use state of an anti-theft device according to a first embodiment of the present invention.
FIGS. 2A and 2B are views showing an attached state of the reception control unit of FIG. 1, in which FIG. 2A is a perspective view showing a completed installation state, and FIG. 2B is a perspective view showing a state in which a cover is removed.
FIG. 3 is an enlarged view of a screw portion of FIG. 2;
FIG. 4 is a functional block diagram of the anti-theft device of FIG. 1;
FIG. 5 is a schematic configuration diagram illustrating a use state of an anti-theft device according to a second embodiment of the present invention.
FIG. 6 is a functional block diagram of the anti-theft device of FIG. 5;
[Explanation of symbols]
C Car 1 Controller 2 Reception control unit 2a, 2b Terminal 2c Cover 2d Screw 2e Head 2f Counterbore 3 Electric connection cable 3a, 3b Terminal 4 Battery 4a Anode terminal 4b Cathode terminal 5 Electric wiring terminal 6 Cell motor 7 Ignition coil 8 Key switch 9 Fuse 10 Other electric circuit 11 Key 12 Control unit 13 Transmitting unit 21 Receiving unit 22 Control unit 23 Current limiting unit 30 Grounding wiring terminal

Claims (5)

A power supply connected between at least a power supply and an electric wiring terminal connected to at least an electric circuit for starting a prime mover among electric wiring terminals connected to an anode terminal of the power supply, and an amount of electricity between the power supply and the electric wiring terminal A current limiting section for limiting
A receiving unit that receives a control signal for controlling the current limiting unit,
An anti-theft device comprising: a control unit configured to control an amount of current limited by the current limiting unit based on a control signal received by the receiving unit. The anti-theft device according to claim 1, further comprising a cover that entirely covers a connection portion between the current limiting portion and the electric wiring terminal. A current limiting unit that is connected between the power supply and a ground wiring terminal connected to the cathode terminal of the power supply, and that limits an amount of electricity between the power supply and the ground wiring terminal;
A receiving unit that receives a control signal for controlling the current limiting unit,
An anti-theft device comprising: a control unit configured to control an amount of current limited by the current limiting unit based on a control signal received by the receiving unit. The anti-theft device according to claim 3, further comprising a cover that entirely covers a connection portion between the current limiting portion and the ground wiring terminal. The cover is fixed by a screw having a rotatable head only by a special tool, and in this fixed state, the head of the screw is embedded inside a surface of the cover. The anti-theft device according to claim 2.

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