JP2020192844A - Vehicular anti-theft device - Google Patents

Abstract

To provide a vehicular anti-theft device capable of reducing the risk of theft with a simple configuration.SOLUTION: A vehicular anti-theft device 10 is provided to a vehicle 20 comprising an engine 21 and a main ignition switch 11 for emitting a signal to drive the engine 21 on the basis of an operation by a user. The vehicular anti-theft device 10 comprises: a cutting circuit 13 which is interposed in a route connecting the engine 21 and the main ignition switch 11 and cuts off an electric signal transmitted from the main ignition switch 11 in response to a condition; and calculation control means 16 which controls a connection state of the cutting circuit 13 on the basis of a signal emitted from a touch sensor 14 disposed in such a position that can be touched by a user when the user operates the vehicle 20.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle anti-theft device, and more particularly to a vehicle anti-theft device that more reliably prevents the theft of a vehicle by providing a switch other than the main ignition switch.

In conventional vehicles such as passenger cars, the key is inserted into the key insertion slot and the key is rotated to lock the vehicle, unlock the vehicle, and start the engine. In such a case, if the key is duplicated, the vehicle is unlocked and the engine is started by the duplicate key, so that the vehicle may be stolen.

An immobilizer was developed to prevent vehicle theft due to key duplication. The immobilizer is an anti-theft technology that uses an identification code to collate the key with the vehicle, and the vehicle's engine can be started only when the identification code on the vehicle side and the identification code on the key side match. It is an anti-theft device.

However, even if the vehicle is equipped with an immobilizer, if a third party illegally obtains the identification code on the key side, there is a risk that the vehicle will be stolen using the identification code.

JP-A-2018-135845

However, the vehicle anti-theft device using the immobilizer described above is applied to a conventional type having an engine starting mechanism that rotates by inserting a key into a key insertion port.

On the other hand, in recent vehicles, an entry system that can lock and unlock the vehicle electronically or magnetically without using a key has appeared. Furthermore, a keyless starting mechanism has also appeared that allows the occupant to operate an operating means such as a switch arranged in the vehicle interior to start the engine without inserting a key.

In the above-mentioned vehicle that can board the vehicle and start the engine without using the key, it is not possible to illegally board the vehicle and start the engine electronically or magnetically because the key is not used. Since it is not possible, there is a concern about theft from a different point of view than when using the key.

The above-mentioned concern about theft can occur not only in passenger cars but also in heavy machinery such as construction machinery.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle anti-theft device capable of reducing the risk of theft with a simple configuration.

The present invention is a vehicle anti-theft device provided in a vehicle having a power source and a main ignition switch that emits a signal for driving the power source based on a user's operation, and the power source and the main. It is possible to contact the blocking means that blocks the electric signal transmitted from the main ignition switch, which is interposed in the path connecting the ignition switch and, depending on the conditions, when the user operates the vehicle. It is characterized by including an arithmetic control means for controlling a connection state of the cutoff means based on a signal emitted from a first sub-ignition switch arranged at a position.

Further, in the vehicle anti-theft device of the present invention, the vehicle is separated from the first sub-ignition switch, and the second sub is located at a position where the user can contact the vehicle when operating the vehicle. An ignition switch is arranged, and the arithmetic control means controls the shutoff means based on the outputs from the first sub-ignition switch and the second sub-ignition switch.

Further, in the vehicle anti-theft device of the present invention, the first sub-ignition switch is a touch sensor, and the second sub-ignition switch is a magnetic sensor.

Further, in the vehicle anti-theft device of the present invention, if the first sub-ignition switch is in the on state and the second sub-ignition switch is in the on state, the arithmetic control means makes the shutoff means conductive. It is characterized by doing.

Further, in the vehicle anti-theft device of the present invention, if the first sub-ignition switch is in the on state and the second sub-ignition switch is in the off state within a certain period of time, the arithmetic control means can be used. The blocking means is brought into a conductive state.

Further, the vehicle anti-theft device of the present invention is further provided with a notification means for notifying that a signal from the first sub-ignition switch has been input to the calculation control means.

The present invention is a vehicle anti-theft device provided in a vehicle having a power source and a main ignition switch that emits a signal for driving the power source based on a user's operation, and the power source and the main. It is possible to contact the blocking means that blocks the electric signal transmitted from the main ignition switch, which is interposed in the path connecting the ignition switch and, depending on the conditions, when the user operates the vehicle. It is characterized by including an arithmetic control means for controlling a connection state of the cutoff means based on a signal emitted from a first sub-ignition switch arranged at a position. As a result, according to the vehicle anti-theft device of the present invention, the arithmetic control means controls the shutoff means based on the output from the first sub-ignition switch, so that the vehicle is compared with a vehicle having only the main ignition switch. , It is possible to prevent the occurrence of vehicle theft.

Further, in the vehicle anti-theft device of the present invention, the vehicle is separated from the first sub-ignition switch, and the second sub is located at a position where the user can come into contact with the vehicle when operating the vehicle. An ignition switch is arranged, and the arithmetic control means controls the shutoff means based on the outputs from the first sub-ignition switch and the second sub-ignition switch. As a result, according to the vehicle anti-theft device of the present invention, the second sub-ignition switch is provided in addition to the main ignition switch and the first sub-ignition switch, so that the possibility of the vehicle being stolen can be reduced. Can be done.

Further, in the vehicle anti-theft device of the present invention, the first sub-ignition switch is a touch sensor, and the second sub-ignition switch is a magnetic sensor. As a result, according to the vehicle anti-theft device of the present invention, the vehicle has a relatively simple configuration by having a touch sensor and a magnetic sensor as the first sub-ignition switch and the second sub-ignition switch. The possibility of being stolen can be reduced.

Further, in the vehicle anti-theft device of the present invention, if the first sub-ignition switch is in the on state and the second sub-ignition switch is in the on state, the arithmetic control means makes the shutoff means conductive. It is characterized by doing. As a result, according to the vehicle anti-theft device of the present invention, the power source can be started when the first sub-ignition switch and the second sub-ignition switch are on, so that vehicle theft can be reliably prevented. ..

Further, in the vehicle anti-theft device of the present invention, if the first sub-ignition switch is in the on state and the second sub-ignition switch is in the off state within a certain period of time, the arithmetic control means can be used. The blocking means is brought into a conductive state. As a result, according to the vehicle anti-theft device of the present invention, the power source can be used as long as the first sub-ignition switch is in the on state and the second sub-ignition switch is in the off state within a certain period of time. Since it can be started, it is possible to prevent the vehicle from being stolen and to simplify the operation of driving the power source.

Further, the vehicle anti-theft device of the present invention is further provided with a notification means for notifying that a signal from the first sub-ignition switch has been input to the calculation control means. As a result, according to the vehicle anti-theft device of the present invention, the user can recognize that the first sub-ignition switch is operating by notifying the notification means.

It is a figure which shows the anti-theft device for a vehicle which concerns on embodiment of this invention, (A) is a schematic diagram which shows the vehicle provided with the anti-theft device for a vehicle, (B) is a figure which shows the audio panel. It is a flowchart which shows the method of starting the engine of a vehicle using the anti-theft device for a vehicle which concerns on embodiment of this invention.

Hereinafter, the configuration and operation of the vehicle anti-theft device 10 of this embodiment will be described with reference to the drawings. In the description of the present embodiment, in principle, the same code number is used for the same member, and the repeated description is omitted.

The configuration of the vehicle anti-theft device 10 will be described with reference to FIG. FIG. 1A is a schematic view showing a vehicle 20 having a vehicle anti-theft device 10, and FIG. 1B is a view of the audio panel 30 as viewed from the vehicle interior.

With reference to FIG. 1A, the vehicle anti-theft device 10 includes a cut circuit 13 and an arithmetic control means 16. The vehicle anti-theft device 10 is a device for preventing theft of the vehicle anti-theft device 10 when the vehicle is stopped.

The cut circuit 13 is a blocking means that is interposed in a path connecting the starter 22 and the main ignition switch 11 and appropriately cuts off the path in response to an instruction from the arithmetic control means 16.

The arithmetic control means 16 is a means for controlling the cut circuit 13 according to the situation of the vehicle 20. The arithmetic control means 16 is composed of various electronic elements incorporated on the upper surface of one substrate, and has, for example, a CPU, RAM, ROM, and the like. Further, the arithmetic control means 16 includes a timer for measuring the time after the user touches or separates from the touch sensor 14 or the magnet sensor 15, which will be described later.

The vehicle 20 has a power supply 23, a touch sensor 14, a magnet sensor 15, an engine 21, a starter 22, and a main ignition switch 11 in addition to the vehicle anti-theft device 10. These vehicle components are connected to each other via a connecting means such as a harness.

As the vehicle 20, for example, a passenger car such as an engine car, a hybrid car, or an electric car can be adopted. Further, as the vehicle 20, a construction machine, a transportation machine, a locomotive, a train, a military vehicle, an agricultural machine, an industrial machine, or the like can be adopted.

The power supply 23 supplies electric power for operating the vehicle anti-theft device 10. As the power source 23, for example, an in-vehicle battery that generates electric power of 12 V of the automobile or the like or electric power of 24 V of the construction machine or the like can be adopted.

The engine 21 is a power source that generates power for moving the vehicle 20. As the engine 21, a gasoline engine, a diesel engine, or the like can be adopted. Further, as the power source of the vehicle 20, a motor or the like can be adopted in addition to the engine 21.

The starter 22 is a device that starts the engine 21 based on a start signal input from the main ignition switch 11.

The main ignition switch 11 is, for example, a push-type switch arranged on a dash boat in a vehicle interior. As the main ignition switch 11, a mechanism other than the push type switch, for example, a touch type or a rotary type can be adopted.

The vehicle anti-theft device 10 of the present embodiment has a touch sensor 14 and a magnet sensor 15 as sensors that the user contacts when starting the engine 21. One of the touch sensor 14 and the magnet sensor 15 is the first sub-ignition switch, and the other is the second sub-ignition switch.

The touch sensor 14 is arranged at a position where the user who has boarded the vehicle 20 can touch by hand in the boarding posture, and when the user touches, a specific signal is transmitted to the calculation control means 16.

The magnet sensor 15 is arranged at a position where the user who has boarded the vehicle 20 can come into contact with the vehicle by hand in the boarding posture, and when a magnetic material such as metal or a magnet is arranged in the vicinity of the magnet sensor 15. A signal indicating that fact is transmitted to the arithmetic control means 16.

With reference to FIG. 1B, the touch sensor 14 and the magnet sensor 15 are arranged in front of the dashboard audio panel 30, that is, behind the audio panel 30 as seen by the user. Therefore, since the touch sensor 14 and the magnet sensor 15 are arranged at positions that cannot be seen from the vehicle interior, it is easy for a third party other than the user to detect the presence and position of the touch sensor 14 and the magnet sensor 15. Instead, it can improve security. Further, the audio panel 30 is provided with operation buttons 31 and the like for controlling the audio function of the vehicle 20. Here, the touch sensor 14 and the magnet sensor 15 can be arranged at a place other than the audio panel 30, and can be installed within a user-accessible range such as around the dashboard.

With reference to the flowchart of FIG. 2, a method of starting the engine 21 by using the vehicle anti-theft device 10 having the above configuration will be described in detail next.

In step S10, it is determined whether or not the engine start condition is satisfied. That is, the arithmetic control means 16 determines whether, for example, an engine key, which is a smart key, exists in the vehicle interior of the vehicle 20 and the user is stepping on the brake. When all of these operations are performed, the arithmetic control means 16 determines that the engine starting condition is satisfied. On the other hand, when any of these operations is not performed, the arithmetic control means 16 determines that the engine starting condition is not satisfied.

If the condition of step S10 is satisfied, that is, if step S10 is YES, the process proceeds to step S11. On the other hand, if the condition of step S10 is not satisfied, that is, if step S10 is NO, the process proceeds to step S13 and the engine 21 is not started.

In step S11, the arithmetic control means 16 determines whether or not the magnet sensor 15 is on. Specifically, the user boarding the vehicle 20 brings a magnetic material or the like close to the magnet sensor 15 to determine whether or not a predetermined signal is input from the magnet sensor 15 to the arithmetic control means 16. to decide. If the magnet sensor 15 is in the ON state due to the magnetic material or the like approaching the magnet sensor 15, that is, if step S11 is YES, the process proceeds to step S12. On the other hand, if the magnet sensor 15 is in the off state because the magnetic material or the like is not close to the magnet sensor 15, that is, if step S11 is NO, the process proceeds to step S13 and the engine 21 is not started. .. That is, the cut circuit 13 cuts off the path connecting the main ignition switch 11 and the starter 22, and does not start the engine 21. By doing so, the engine 21 is not started when the magnet sensor 15 is off, so that theft can be prevented.

In step S12, the arithmetic control means 16 determines whether the touch sensor 14 is on or within a certain period of time after the touch. Here, the fixed time is, for example, 4 seconds. That is, the arithmetic control means 16 determines whether the user's hand on the vehicle 20 is in contact with the touch sensor 14 or whether the user's hand is within 4 seconds after leaving the touch sensor 14. To do. Here, by changing the setting of the arithmetic control means 16, the user can determine that step S12 is YES only by turning on the touch sensor 14. Further, by changing the setting of the arithmetic control means 16, the user can determine that step S12 is YES only within 4 seconds after touching the touch sensor 14.

If the user's hand in the vehicle 20 is in contact with the touch sensor 14 or within 4 seconds after the user's hand is separated from the touch sensor 14, that is, if step S12 is YES, step S14 To enable the engine 21 to be started. That is, the cut circuit 13 can start the engine 21 and drive the vehicle 20 without blocking the path connecting the main ignition switch 11 and the starter 22. On the other hand, when the user's hand on the vehicle 20 is not in contact with the touch sensor 14 and the user's hand is separated from the touch sensor 14 for 4 seconds or more, that is, when step S12 is NO. The arithmetic control means 16 disables the engine 21 in step S13. That is, the cut circuit 13 cuts off the path connecting the main ignition switch 11 and the starter 22, and does not start the engine 21. By doing so, the engine 21 is started only when both the conditions of step S11 and step S12 are satisfied, so that the effect of preventing theft can be further remarkable.

In step S15, the user performs a predetermined operation. When the vehicle anti-theft device 10 employs a keyless starting mechanism, the user presses the main ignition switch 11 while the brake pedal is depressed. Then, the signal transmitted from the main ignition switch 11 is transmitted to the starter 22 without being interrupted by the cut circuit 13. When the engine 21 is started by the starter 22 (step S16), the engine 21 is operated. The driving force of the engine 21 causes the vehicle 20 to travel.

When the engine 21 is started by a physical key, the user rotates the key inserted in the keyhole to perform the on operation in step S15, and the engine 21 is started in step S16.

If YES in step S11 or step S12, the user may be notified by a notification means such as a buzzer. By doing so, the user can recognize that the touch sensor 14 and the magnet sensor 15 are operating normally. Further, the user can set the presence / absence of notification. By setting so that the user does not notify, even if YES in step S11 or step S12, no notification is performed, so that the touch sensor 14 and the magnet sensor 15 are more concealed, and the vehicle anti-theft device 10 is used. The effect of preventing theft can be remarkable.

Further, since the connection line connected to the arithmetic control means 16 is supplied with a voltage equal to the power supply voltage, for example, a voltage of 12 V, a lamp as a notification means can be turned on, and an external switch is further provided. And relays can also be operated.

Here, the operation of step S10 described above can be performed by one hand of the user, and the operations of steps S11 and S12 can be performed by the other hand of the user.

Although the embodiments of the present invention have been shown above, the present invention is not limited to the above embodiments.

For example, in the explanation using the flowchart of FIG. 2, the status of the magnet sensor 15 was confirmed in step S11, and the status of the touch sensor 14 was confirmed in step S12. However, this was reversed and the status of the touch sensor 14 was confirmed in step S11. , And the status of the magnet sensor 15 can be confirmed in step S12.

Further, with reference to the flowchart of FIG. 2, it is possible to move to step S14 only when one of the conditions of step S11 and step S12 is satisfied.

10 Vehicle anti-theft device 11 Main ignition switch 13 Cut circuit 14 Touch sensor 15 Magnet sensor 16 Computational control means 20 Vehicle 21 Engine 22 Starter 23 Power supply 30 Audio panel 31 Operation button

The present invention is a vehicle anti-theft device provided in a vehicle having a power source and a main ignition switch that emits a signal for driving the power source based on a user's operation, and the power source and the main. It is possible to contact the blocking means that is interposed in the path connecting the ignition switch and, depending on the conditions, to block the electric signal transmitted from the main ignition switch when the user operates the vehicle. A calculation control means for controlling the connection state of the blocking means based on a signal emitted from a touch sensor arranged at a position is provided, and the user operates the vehicle separately from the touch sensor. A magnetic sensor is arranged at a position where they can come into contact with each other, and the arithmetic control means controls the blocking means based on the touch sensor and the output from the magnetic sensor, and the user attaches to the touch sensor. If they are in contact with each other, or within a certain period of time after touching, and the magnetic sensor is in the ON state, the arithmetic control means puts the blocking means in a conductive state, and the user leaves the touch sensor. When the time is longer than a certain period of time, the arithmetic control means is characterized in that the power source cannot be started .

The present invention is a vehicle anti-theft device provided in a vehicle having a power source and a main ignition switch that emits a signal for driving the power source based on a user's operation, and the power source and the main. It is possible to contact the blocking means that is interposed in the path connecting the ignition switch and, depending on the conditions, to block the electric signal transmitted from the main ignition switch when the user operates the vehicle. A calculation control means for controlling the connection state of the blocking means based on a signal emitted from a touch sensor arranged at a position is provided, and the user operates the vehicle separately from the touch sensor. A magnetic sensor is arranged at a position where they can come into contact with each other, and the arithmetic control means controls the blocking means based on the touch sensor and the output from the magnetic sensor, and the user attaches to the touch sensor. If they are in contact with each other, or within a certain period of time after touching, and the magnetic sensor is in the ON state, the arithmetic control means puts the blocking means in a conductive state, and the user leaves the touch sensor. When the time is longer than a certain period of time, the arithmetic control means is characterized in that the power source cannot be started . As a result, according to the vehicle anti-theft device of the present invention, the arithmetic control means controls the blocking means based on the output from the first sub-ignition switch, so that the vehicle is compared with a vehicle having only the main ignition switch. , It is possible to prevent the occurrence of vehicle theft.

Claims (6)

A vehicle anti-theft device provided in a vehicle having a power source and a main ignition switch that emits a signal for driving the power source based on a user's operation.
A blocking means that is interposed in a path connecting the power source and the main ignition switch and blocks an electric signal transmitted from the main ignition switch depending on conditions.
A calculation control means for controlling a connection state of the cutoff means based on a signal emitted from a first sub-ignition switch arranged at a position where the user can come into contact with the vehicle when operating the vehicle. An anti-theft device for vehicles characterized by In the vehicle, a second sub-ignition switch is arranged at a position where the user can come into contact with the vehicle when operating the vehicle, as a separate body from the first sub-ignition switch.
The vehicle anti-theft device according to claim 1, wherein the arithmetic control means controls the shutoff means based on the outputs from the first sub-ignition switch and the second sub-ignition switch. The first sub-ignition switch is a touch sensor.
The vehicle anti-theft device according to claim 2, wherein the second sub-ignition switch is a magnetic sensor. If the first sub-ignition switch is in the on state and the second sub-ignition switch is in the on state,
The vehicle anti-theft device according to claim 2 or 3, wherein the arithmetic control means makes the blocking means conductive. If the first sub-ignition switch is on and within a certain period of time after the second sub-ignition switch is turned off,
The vehicle anti-theft device according to claim 2 or 3, wherein the arithmetic control means makes the blocking means conductive. The vehicle anti-theft device according to any one of claims 1 to 5, further comprising a notification means for notifying that a signal from the first sub-ignition switch has been input to the arithmetic control means. ..

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