JP4367195B2 - Wireless automatic encryption verification / unlocking device for vehicles - Google Patents

Description

  The present invention relates to a wireless automatic encryption verification locking / unlocking device used for locking and unlocking a door of a vehicle.

In recent years, when locking or unlocking the door of a vehicle such as an automobile, ID verification is performed wirelessly between the portable device and the vehicle-side system provided in the vehicle without using a mechanical key. Based on the above results, a wireless automatic encryption verification locking / unlocking device (such a device is also called a smart entry system) that locks or unlocks a door has been developed.
In a conventional wireless automatic encryption verification locking / unlocking device, a locking switch (for example, a push button switch) and an unlocking switch (for example, a touch sensor attached to a door handle) are provided around the door knob, When these switches are operated when the door is locked or unlocked, an ID request signal is transmitted from the vehicle-side system. Then, when the portable device possessed by the driver receives the ID request signal from the vehicle-side system, the portable device transmits the ID assigned to itself in advance. When the vehicle-side system receives the ID from the portable device, it performs ID collation with the ID given to the vehicle in advance, and locks or unlocks the door if the portable device ID matches the vehicle ID.

  In addition, the conventional wireless automatic cipher verification locking / unlocking device automatically locks the door when the driver holds the portable device and moves away from the vehicle by a predetermined distance, and automatically unlocks when the driver enters the predetermined distance range of the vehicle. Some have an automatic lock system that locks them. If such an automatic lock system is set, it is not necessary to operate the switch when locking the door, which is convenient for the driver.

Patent Document 1 discloses a wireless door unlocking device including a plurality of portable devices. Specifically, the vehicle-side system detects whether or not the portable device is misplaced in the vehicle when the driver gets off, and stores the misplacement when the portable device is misplaced in the vehicle. And if it is not remembered that the driver normally uses the portable device (main portable device), if the driver is requested to unlock the door by operating the switch, it is determined whether or not the driver has the main portable device. When it is determined that the driver has the main portable device, the door is unlocked. On the other hand, when the main portable device is misplaced, if the driver is requested to unlock the door by operating the switch, it is determined whether the driver has a spare portable device (spare portable device). If it is determined that has a spare portable device, it is determined that the driver is requesting unlocking using the spare portable device, and the door is unlocked.
Japanese Utility Model Publication No. 1-98877

By the way, the technique disclosed in Patent Document 1 is a technique related to the condition setting at the time of unlocking the door and does not take into consideration any problems that occur at the time of locking, but the conditions at the time of unlocking the door as well as at the time of unlocking. Setting is also an important issue.
As a condition for locking the door, the driver usually performs the locking operation with the portable device, but it is not possible to directly detect whether the driver has the portable device. Can not. Therefore, for example, there is a technique for determining whether or not the driver is carrying the portable device based on whether or not a radio wave transmitted from the portable device is received from within a predetermined area outside the door being locked.

On the other hand, it can also be determined whether or not the driver is carrying the locking operation with the portable device depending on whether or not the portable device is in the passenger compartment.
In other words, when the driver holds the portable device and performs the locking operation, there is no portable device in the vehicle interior. Therefore, if there is no portable device in the vehicle interior during the locking operation, the driver possesses the portable device. If the locking condition is established, the locking condition is established and the locking is performed, and if there is a portable device in the passenger compartment, the driver does not have the portable device and the locking condition is not established and the locking is not performed. .

However, in this case, if there is a spare portable device in the vehicle, there is a problem that the door cannot be locked even if the driver operates the switch even though the driver has the portable device.
On the contrary, even if there is a portable device in the car, if it is set to lock if there is a locking operation, if there is even one portable device in the car when locking the door When the switch is operated even though the driver does not have the portable device, the door is locked, which causes a problem that the portable device is confined in the vehicle.

  The present invention has been conceived in view of such a problem, and an object of the present invention is to provide a wireless automatic encryption verification locking / unlocking device for a vehicle, which can improve convenience during door locking.

For this reason, the wireless automatic cipher verification / unlocking device for a vehicle according to the first aspect of the present invention has a unique ID, and a plurality of portable devices capable of transmitting an ID signal related to the ID wirelessly, and the vehicle A wireless automatic encryption verification locking / unlocking device for a vehicle, the vehicle side system receiving each ID signal of the plurality of portable devices, The ID verification unit that performs ID verification based on each of the ID signals received by the reception unit, and the ID verification unit that matches the ID verification by the ID verification unit and the portable device that was used during the driving operation of the vehicle is operated A storage unit stored as a portable device used; and a determination unit that determines whether or not the portable device used during driving operation stored in the storage unit exists in the vehicle when the door of the vehicle is locked. , Used by the determination unit during the driving operation If it is determined that the belt device is present in the vehicle, the door is not locked. If the determination unit determines that the portable device to be used during the driving operation is not present in the vehicle, the door lock control unit locks the door. And the storage unit stores the portable device closest to the driver's seat as the portable device used during the driving operation among the portable devices having the ID verification matched by the verification by the ID verification unit. It is characterized in that.

Wireless automatic encryption verification unlocking apparatus for a vehicle of the present invention 請 Motomeko 2 wherein, in the apparatus of claim 1, the receiving unit may have an antenna to receive a range in the vicinity of the driver's seat It is characterized by.

According to a third aspect of the present invention, there is provided the wireless automatic encryption verification / unlocking device for vehicles according to the first or second aspect of the present invention, wherein the input means for starting the driving operation of the vehicle in the vicinity of the driver's seat is provided. In addition, the ID collating unit is configured to perform the ID collation when the driving operation of the vehicle is started by the input means.
According to a fourth aspect of the present invention, there is provided a vehicle automatic automatic cipher collation locking / unlocking device for requesting locking of the door in the vicinity of the door in the device according to any one of the first to third aspects. Locking requesting means is provided, and the determination unit determines whether or not the portable device used during the driving operation exists in the vehicle when the locking requesting means requests locking of the door.

  According to the vehicle wireless automatic encryption verification locking / unlocking device of the present invention, when locking the door, it is confirmed that at least the portable device used for driving (the portable device used during driving operation) does not exist in the vehicle. Since the door is locked later, it is possible to prevent the portable device from being locked into the vehicle. Further, if the portable device used for driving is carried, the door can be locked even if there is another portable device (that is, a portable device not used for driving) in the vehicle. Thus, it becomes possible to improve the convenience at the time of door locking.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram schematically showing a vehicle wireless automatic encryption verification locking / unlocking device (wireless automatic encryption verification door locking / unlocking device) according to an embodiment of the present invention. In the following, the locking control according to the present invention will be mainly described, and a vehicle including two doors 2R and 2L will be described for convenience.

As shown in FIG. 1, this device is a vehicle-side system provided in a plurality of portable devices 30 and the vehicle 1 without using a mechanical key when locking the doors 2R and 2L of the vehicle 1 such as an automobile. 3 is configured to wirelessly perform ID collation with 3 and lock the doors 2R and 2L based on the result of the ID collation.
A unique ID (encryption code) is assigned to the vehicle 1 in advance, and a unique ID associated with the vehicle 1 is also assigned to each portable device 30 in advance. The vehicle-side system 3 includes the ID of the vehicle 1 in the ID request signal and transmits the ID request signal to the plurality of portable devices 30. When each portable device 30 receives the ID request signal from the vehicle-side system 3, The ID of the vehicle 1 included in the signal and the ID of the own portable device 30 are collated, and if the ID collation matches, the ID of the portable device 30 is returned to the vehicle side system 3 as an ID signal. .

  For this reason, the portable device 30 mainly includes a receiver (reception unit) 31, a transmitter (transmission unit) 32, and a control device 33. Here, the receiver 31 is an LF receiver, and receives an ID request signal transmitted from the vehicle-side system 3 via the reception antenna 31a. Here, the transmitter 32 is a UHF transmitter, and transmits the ID of the portable device 30 to the vehicle-side system 3 via the transmission antenna 32a.

The control device 33 has a function corresponding to the ID verification unit 34. The ID collation unit 34 collates the ID of the vehicle 1 included in the ID request signal received by the receiver 31 with the ID of the portable device 30.
And if ID collation by ID collation part 34 corresponds, control device 33 will send ID of portable machine 30 to transmitter 32 as ID signal, and will transmit to vehicle side system 3 via transmission antenna 32a. It has become. If the ID verification by the ID verification unit 34 does not match, the ID signal is not transmitted.

The vehicle side system 3 includes a receiver (receiver) 4, a transmitter (transmitter) 5, a key switch 7, a control device 8, a door switch 9R, a door switch 9L, a door lock 10R, a door lock 10L, a door sensor 11R, a door sensor. 11L is mainly provided.
The door switches 9R and 9L correspond to locking request means (locking switches) for requesting locking of the door 2R on the right side of the vehicle 1 and the door 2L on the left side of the vehicle 1, for example, knobs outside the doors 2R and 2L. (Not shown) It is provided in the periphery. The door switches 9R and 9L are push button switches, for example, and a lock request signal is transmitted to the control device 8 when the door switches 9R and 9L are operated.

The door locks 10R and 10L correspond to door lock devices for locking the door 2R on the right side of the vehicle 1 and the door 2L on the left side of the vehicle 1, respectively, and lock the doors 2R and 2L by a control signal from the control device 8. It is like that.
The door sensors 11R and 11L correspond to door state detecting means for detecting the open / closed state (including a half-door state) of the door 2R on the right side of the vehicle 1 and the door 2L on the left side of the vehicle 1, respectively. 1 It is attached to the edge of the left door 2L. In addition, detection information detected by the door sensors 11R and 11L is transmitted to the control device 8.

Here, the receiver 4 is a UHF receiver, and receives an ID signal transmitted from the portable device 30 via the receiving antenna 4a. The receiving antenna 4a is attached in the vicinity of the driver's seat here.
The transmitter 5 is an LF transmitter here, and transmits an ID request signal into the vehicle 1 via the transmission antennas 5a, 5b, and 5c, and is transmitted from the transmission antennas 5a, 5b, and 5c. The ID request signal to be executed is controlled by the control device 8. The transmission antennas 5a, 5b, and 5c are provided in the vehicle interior. For example, the transmission antenna 5a is a central ceiling in the vehicle interior, the transmission antenna 5b is an inner wall on the right rear side in the vehicle interior, and the transmission antenna 5c is on the left side in the vehicle interior. It is attached to the rear inner wall.

The key switch 7 corresponds to input means for starting the driving operation of the vehicle 1 and is provided in the vicinity of the driver's seat. The key switch 7 is a push button switch, for example. When the driving operation of the vehicle 1 is started, a driving operation start signal is transmitted to the control device 8 by operating the key switch 7 if the portable device 30 is in the vicinity of the driver's seat. It has become so.
The control device 8 is configured to transmit an ID request signal from the transmitter 5 into the vehicle 1 when receiving a driving operation start signal from the key switch 7 or a lock request signal from the door switches 9R and 9L. Further, the control device 8 is provided with functions corresponding to the ID verification unit 12, the storage unit 13, the determination unit 14, and the door lock control unit 15.

The ID collation unit 12 collates the ID of the portable device 30 of the ID signal received by the receiver 4 with the ID of the vehicle 1.
Further, the storage unit 13 receives the driving operation start signal from the key switch 7 (that is, when the key switch 7 is operated), and has the strongest radio wave intensity among the ID signals received by the receiver 4. The ID of the machine 30 is stored. As described above, since the receiving antenna 4a is attached in the vicinity of the driver's seat, the radio field intensity of the portable device 30 closest to the driver's seat is the strongest. That is, the storage unit 13 sets the portable device 30 as the portable device used for driving (used portable device during driving operation) 30 and stores the ID of the portable device 30. The ID of the portable device 30 stored in the storage unit 13 is updated and stored every time the key switch 7 is operated.

The determination unit 14 determines whether or not the ID signal from the portable device 30 received by the receiver 4 includes the ID signal of the portable device 30 stored in the storage unit 13, that is, the portable device used for driving. Whether or not 30 exists in the vehicle 1 is determined.
When the door switch 9R, 9L is operated, the door lock control unit 15 controls the door locks 10R, 10L when the determination unit 14 determines that the portable device 30 used for driving does not exist in the vehicle 1. The doors 2R and 2L are locked. Further, when the determination unit 14 determines that the portable device 30 used for driving is present in the vehicle 1, the door locks 10R and 10L are controlled so that the doors 2R and 2L are not locked (that is, held in an unlocked state). It is like that.

  Further, when the door switch 9R, 9L is operated, the door lock control unit 15 detects that any of the doors 2R, 2L is open or in a half door state by the door sensors 11R, 11L. Even when the portable device 30 used for driving is present in the vehicle 1, the doors 2R and 2L are not locked. Furthermore, the door lock control unit 15 is configured not to lock the doors 2R and 2L even when no ID signal is received from any portable device 30 when the door switches 9R and 9L are operated.

  In addition, this apparatus is provided with a warning device 21. The warning device 21 is, for example, a speaker that emits a warning sound toward the outside of the vehicle 1 or blinker lamps on the left and right sides of the existing vehicle 1. When the door switches 9R and 9L are operated, the door sensors 11R and 11L are used to open the door 2R. , 2L is detected to be open or half-door state, a warning sound is emitted from the speaker or the blinker is blinked to notify the driver that the doors 2R, 2L cannot be locked. It is like that. In addition, such a notification that the driver cannot be locked is notified when the ID signal is not received from any portable device 30 when the door switches 9R and 9L are operated, or when the portable device 30 used for driving is notified. The same operation is performed when the vehicle 1 exists.

  Since the vehicle wireless automatic cipher collation locking / unlocking device as one embodiment of the present invention is configured as described above, locking control is performed according to the processing flow shown in FIG. First, in step S10, when the driver gets out of the vehicle 1 and closes the door 2R on the right side of the vehicle 1 and operates the door switch 9R of the door 2R, for example, in step S20, the door sensors 11R and 11L open and close the doors 2R and 2L. Is detected. When both the doors 2R and 2L are closed in step S20, the process proceeds to step S30. If any of the doors 2R and 2L is open or in a half-door state in step S20, the process proceeds to step S100, and the warning device 21 notifies the driver that the doors 2R and 2L cannot be locked. To do.

  Next, in step S <b> 30, the transmitter 5 transmits an ID request signal to the portable device 30. In step S40, when the receiver 4 receives an ID signal from the portable device 30, the process proceeds to step S50, where the ID of the vehicle 1 and the ID of the portable device 30 are collated. If the receiver 4 does not receive the ID signal from the portable device 30 in step S40, the process proceeds to step S100, and the warning device 21 notifies the driver that the doors 2R and 2L cannot be locked. .

  In step S60, it is determined whether or not the portable device 30 used for driving is present in the vehicle 1. In step S60, when the portable device 30 used for driving does not exist in the vehicle 1, the process proceeds to step S70, and the doors 2R and 2L are locked. In step S60, if the portable device 30 used for driving is present in the vehicle 1, the process proceeds to step S100, and the warning device 21 notifies the driver that the doors 2R and 2L cannot be locked. To do.

  As described above, according to the wireless automatic encryption verification / unlocking device for a vehicle as one embodiment of the present invention, the driver usually has the portable device 30 used for driving and goes out of the vehicle, but the doors 2R, 2L. Since the doors 2R and 2L are locked after confirming that the portable device 30 used for this operation does not exist at least in the vehicle 1, the portable device 30 is locked in the vehicle 1. Can be prevented. Further, if the driver possesses the portable device 30 used for driving, another portable device in the vehicle 1 (for example, a portable device used as a spare and not used for driving). Even if there is, the doors 2R and 2L can be locked. In this way, it is possible to improve convenience when locking the doors 2R and 2L.

  The doors 2R and 2L are unlocked when the ID of the portable device 30 used by the driver or the ID of another portable device 30 matches the ID set in the receiver 4. ing.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, in this embodiment, the doors 2R and 2L are locked by operating the door switches 9R and 9L. However, in such a configuration, the above-described automatic lock system may be set. In this case, a transmitter and a receiver are also provided outside the vehicle 1 so that the ID request signal can be transmitted to the outside of the vehicle 1 and the ID signal of the portable device 30 outside the vehicle 1 can be received. To do. Then, the distance between the vehicle 1 and the portable device 30 is estimated based on the radio field intensity of the ID signal received by the receiver provided outside the vehicle 1, and the vehicle 1 is carried by the driver carrying the portable device 30 used for driving. Door 2R, 2L by automatically locking the doors 2R, 2L even if there is another portable device in the vehicle 1 (ie, a portable device not used for driving). Forgetting to lock can be prevented and security can be improved.

Moreover, although this embodiment demonstrated the vehicle 1 provided with the two doors 2R and 2L, of course, the vehicle provided with the three or more doors and the tailgate may be sufficient. However, also in this case, a door lock, a door sensor, and a door switch are provided for each door and tailgate.
Furthermore, when performing ID collation in step S50 in the flowchart shown in FIG. 2, the time required for ID collation can be reduced by first performing ID collation of the portable device 30 used for driving among a plurality of portable devices 30. It can be shortened. Alternatively, priorities may be assigned to each portable device 30 in advance, and ID collation may be performed according to the priorities.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram schematically showing a vehicle wireless automatic encryption matching / unlocking device as an embodiment of the present invention. It is a figure which shows the locking flow of the wireless automatic encryption collation locking / unlocking apparatus which concerns on one Embodiment of this invention.

Explanation of symbols

1 vehicle 2R, 2L door 3 vehicle side system 4 receiver (receiver)
4a Receiving antenna 5 Transmitter (transmitter)
5a, 5b, 5c Transmitting antenna 7 Key switch (input means)
8 Control device 9R, 9L Door switch (locking request means)
10R, 10L Door lock (door lock device)
11R, 11L Door sensor (door state detection means)
12 ID collation part 13 Storage part 14 Judgment part 15 Door lock control part 30 Portable machine 31 Receiver (reception part)
31a Receiving antenna 32 Transmitter (transmitter)
32a Transmitting antenna 33 Controller 34 ID verification unit

Claims (4)

A wireless automatic cryptography verification locking / unlocking device for a vehicle comprising a plurality of portable devices each having a unique ID and capable of wirelessly transmitting an ID signal related to the ID, and a vehicle side system provided in the vehicle. There,
The vehicle side system is
A receiving unit for receiving each ID signal of the plurality of portable devices;
An ID verification unit that performs ID verification based on each of the ID signals received by the reception unit;
A storage unit that stores the portable device that is used when driving the vehicle and the ID verification matches in the verification by the ID verification unit;
A determination unit for determining whether or not the portable device for use during driving stored in the storage unit exists in the vehicle when the door of the vehicle is locked;
If the determination unit determines that the portable device used during driving operation exists in the vehicle, the door is not locked, and if the determination unit determines that the portable device used during driving operation does not exist in the vehicle. A door lock control unit that locks the door ,
The storage unit stores the portable device closest to the driver's seat as the portable device used during the driving operation among the portable devices having the ID verification matched by the verification by the ID verification unit. A wireless automatic encryption verification / unlocking device for a vehicle. The receiver is characterized in that it comprises an antenna to receive a range in the vicinity of the driver's seat, the wireless automatic encryption verification unlocking apparatus for a vehicle according to claim 1. An input means for starting the driving operation of the vehicle is provided in the vicinity of the driver seat,
The wireless automatic encryption for a vehicle according to claim 1 or 2 , wherein the ID verification unit is configured to perform the ID verification when a driving operation of the vehicle is started by the input means. Verification / unlocking device. A lock requesting means for requesting locking of the door in the vicinity of the door;
The determination unit according to any one of claims 1 to 3 , wherein the determination unit determines whether or not the portable device used during the driving operation exists in the vehicle when the locking request means requests the locking of the door. The wireless automatic encryption verification locking / unlocking device for a vehicle according to any one of the preceding claims.

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