JP6437888B2 - Lock device for OBD port - Google Patents

Description

  The present invention relates to a locking device for an OBD port.

  An automatic failure diagnosis device called OBD (On-board diagnostics) monitors failures in various parts of the vehicle and also monitors an immobilizer (vehicle antitheft system). When it is determined by the immobilizer that the vehicle may be stolen, the OBD notifies information indicating that through a notification unit such as a light or a buzzer and records the information. Information stored in the OBD can be acquired and rewritten via a dedicated connector called an OBD port. In order to prevent the information related to the immobilizer from being rewritten illegally through the OBD port, the technique of Patent Document 1 has been studied.

  That is, Patent Document 1 describes a cover that covers the OBD port. The cover has a key cylinder corresponding to a dedicated mechanical key of the vehicle and a slide lid. The slide lid can be removed only when a dedicated mechanical key is inserted into the key cylinder. The cover prevents unauthorized access to the OBD port.

JP 2013-141937 A

  Vehicles are provided with key cylinders at doors and trunks. That is, by illegally reading the key pile from these key cylinders, there is a possibility that access to the OBD port by a key other than a regular key may be possible.

  The present invention has been made in view of such a situation, and an object thereof is to provide an OBD port locking device having high security.

  In order to solve the above-described problems, an OBD port locking device includes a lock member that is displaced between a lock position that restricts access to an OBD port and an unlock position that permits the access by driving an actuator, And a lock control unit that controls the actuator so that the lock member is displaced from the lock position to the unlock position on condition that wireless communication is established between the control unit and the electronic key. And

  According to this configuration, in order to access the OBD port, it is necessary to establish wireless communication between the in-vehicle control unit and the electronic key. Since the electronic key cannot be duplicated from the key cylinder exposed outside the vehicle, the lock device of this configuration has higher security than the conventional one.

  In the above-described configuration, an operation detection unit that detects a human operation is provided, and the lock control unit triggers the detection of a human operation through the operation detection unit, and the lock member is unlocked from the lock position. It is preferable to control the actuator so as to be displaced to a position.

  According to this configuration, in order to access the OBD port, in addition to the establishment of wireless communication between the in-vehicle control unit and the electronic key, a human operation is also required, which requires time. Therefore, security is further improved.

  In the above-described configuration, a position detection unit that detects the position of the lock member is provided, and the lock control unit is configured such that wireless communication between the in-vehicle control unit and the electronic key is not established and the human operation is performed. When it is detected that the lock member has been displaced through the position detection unit in a state where at least one of the detection is not detected, information indicating that fact is notified from at least one of the vehicle and the electronic key. It is preferable.

According to this configuration, when the lock member is forcibly displaced, information indicating that is notified, so that the security is further improved.
The said structure WHEREIN: It is preferable that the said operation detection part detects physical operation as said human operation.

According to this configuration, in order to access the OBD port, physical operation is required in addition to establishment of wireless communication, and thus the lock device with this configuration has higher security.
In the above configuration, it is preferable that the operation detection unit is a short-range wireless communication unit that performs short-range wireless communication with the electronic key by detecting the proximity of the electronic key as the human operation.

  According to this configuration, in order to access the OBD port, it is necessary to bring the electronic key close to the short-range wireless communication unit, that is, to have the electronic key. High security.

  The locking device of the OBD port of the present invention has high security.

The block diagram which shows schematic structure of an electronic key system. (A) is a front view showing the locking device of the OBD port in the locked state, (b) is a front view showing the locking device of the OBD port in the unlocked state. The front view which shows the locking device of the OBD port in other embodiment. (A) is sectional drawing which shows the locking device of the OBD port in other embodiment, (b) is sectional drawing when (a) is seen from the OBD port side.

Hereinafter, an embodiment of an electronic key system having an OBD port locking device will be described with reference to the drawings.
As shown in FIG. 1, the electronic key system 1 includes an electronic key 2 and an in-vehicle device 3, and controls driving of the in-vehicle device by wireless communication performed between them.

The electronic key 2 may transmit a radio signal reception and UHF (Ultra Hi gh Frequency) band radio signals LF (Low Frequency) band. The electronic key 2 has an ID code necessary for mutual authentication with the in-vehicle device 3. The electronic key 2 transmits an ID code included in a wireless signal in response to a request from the in-vehicle device 3.

  The in-vehicle device 3 includes a communication device 4, a door lock device 5, an engine device 6, a notification unit 7, an OBD port lock device 8, and an in-vehicle control unit 9. Each component except the in-vehicle control unit 9 is electrically connected to the in-vehicle control unit 9 and controlled by the in-vehicle control unit 9.

Communication device 4, it is possible to modulate and demodulate signals, can receive a radio signal transmission and UHF (Ultra Hi gh Frequency) band radio signals LF (Low Frequency) band.

The door lock device 5 switches between locking and unlocking the door lock.
The engine device 6 controls engine start and stop.
The notification unit 7 is, for example, a meter display or a speaker, and performs notification by appealing to human senses such as display and sound.

  The locking device 8 for the OBD port switches between a state where the connection of the dedicated connector to the OBD port 10 electrically connected to the in-vehicle control unit 9 is enabled and a state where the connection is disabled. The details of the OBD port locking device 8 will be described later.

The in-vehicle control unit 9 has an ID code necessary for mutual authentication with the electronic key 2. The in-vehicle control unit 9 attempts ID verification with the electronic key 2 through transmission / reception of a radio signal via the communication device 4. And when ID collation is materialized, the vehicle-mounted control part 9 permits the switching of the locking and unlocking of the door lock by the door lock apparatus 5, and the engine start by the engine apparatus 6. FIG.

  The OBD port locking device 8 includes a motor 11, a slide door 12, and a lock control unit 13 in addition to the above-described vehicle-mounted control unit 9. The in-vehicle control unit 9 and the lock control unit 13 are electrically connected.

The motor 11 is electrically connected to the lock control unit 13 and controlled by the lock control unit 13.
As shown in FIGS. 2A and 2B, the slide door 12 is driven between the locked position that covers the OBD port 10 and the unlocked position that opens the OBD port 10 when the motor 11 is driven. Displace. When the sliding door 12 is in the locked position, connection of a dedicated connector (not shown) to the OBD port 10 is impossible, and when the sliding door 12 is in the unlocked position, connection of the dedicated connector to the OBD port 10 is possible.

  As shown in FIG. 1, the OBD port locking device 8 includes a switch 14 that can be pushed from the outside, a magnet 15 that is attached to the slide door 12, a first Hall element 16, and a second And a Hall element 17. The magnet 15 and the Hall elements 16 and 17 correspond to a position detection unit.

The switch 14 is electrically connected to the in-vehicle control unit 9. The switch 14 corresponds to an operation detection unit.
The first hall element 16 is electrically connected to the lock control unit 13 and faces the magnet 15 of the slide door 12 located at an unlock position described later. The second hall element 17 is electrically connected to the lock control unit 13 and faces the magnet 15 of the slide door 12 located at a lock position described later.

  The in-vehicle control unit 9 locks a signal including information indicating that the switch 14 has been operated and information indicating whether or not the ID collation with the electronic key 2 has been established, with an operation on the switch 14 as a trigger. To the unit 13.

  The lock control unit 13 determines the position of the slide door 12 through the first and second hall elements 16 and 17. The lock control unit 13 receives a signal including information indicating that the switch 14 has been operated in a state where the slide door 12 is located at the lock position and information indicating that ID verification with the electronic key 2 is established. When recognized, the sliding door 12 is displaced from the locked position to the unlocked position through control of the drive of the motor 11. Further, when the lock control unit 13 recognizes a signal including information indicating that the switch 14 is operated in a state where the slide door 12 is located at the unlock position, the lock control unit 13 unlocks the slide door 12 through control of driving of the motor 11. Displace from position to lock position.

  Note that the lock control unit 13 has displaced the slide door 12 through the first and second hall elements 16 and 17 without recognizing a signal including information indicating that the switch 14 has been operated from the in-vehicle control unit 9. When this is recognized, a signal indicating an abnormal operation of the slide door 12 is generated.

When the vehicle-mounted control unit 9 recognizes a signal indicating an abnormal operation of the slide door 12, the vehicle-mounted control unit 9 notifies the information indicating that through the notification unit 7.
Next, the operation of the OBD port lock device 8 will be described. As a premise for explanation, it is assumed that the slide door 12 is located at the lock position. Further, it is assumed that ID verification between the electronic key 2 and the in-vehicle control unit 9 is established.

  As shown in FIG. 2A, when the switch 14 is operated in a state where the slide door 12 is in the locked position, the in-vehicle control unit 9 displays information indicating that the switch 14 has been operated and an electronic key. 2 is transmitted to the lock control unit 13 including information indicating that the ID verification with 2 is established.

  When the lock control unit 13 recognizes that the switch 14 has been operated and that ID verification has been established, the lock control unit 13 drives the motor 11 to displace the slide door 12 from the locked position to the unlocked position. As a result, as shown in FIG. 2B, the OBD port 10 is opened, and a dedicated connector can be connected to the OBD port 10.

  As shown in FIG. 2B, when the switch 14 is operated in a state where the slide door 12 is located at the unlock position, the in-vehicle control unit 9 includes information indicating that the switch 14 has been operated and A signal including information indicating that the ID verification with the electronic key 2 is established is transmitted to the lock control unit 13.

  When the lock control unit 13 recognizes that the switch 14 has been operated, the lock control unit 13 drives the motor 11 to displace the slide door 12 from the unlock position to the lock position. As a result, as shown in FIG. 2A, the OBD port 10 is covered with the slide door 12, and the dedicated connector cannot be connected to the OBD port 10.

As described above, when the slide door 12 is displaced from the unlocked position to the locked position, the ID verification does not necessarily have to be established between the electronic key 2 and the in-vehicle control unit 9.
When the slide door 12 is displaced without recognizing that the switch 14 has been operated even though the slide door 12 is in the locked position or the unlocked position, A signal indicating an abnormal operation of the slide door 12 is generated. Thereby, the abnormal operation of the slide door 12 is notified through the notification unit 7.

As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) The slide door 12 is displaced from the locked position that covers the OBD port 10 to the unlocked position that opens the OBD port 10 on condition that ID verification between the in-vehicle controller 9 and the electronic key 2 is established. A lock control unit 13 for controlling the drive of the motor 11 is provided to constitute the lock device 8 for the OBD port.

  That is, in order to access the OBD port 10, ID verification needs to be established between the in-vehicle controller 9 and the electronic key 2. Since the electronic key 2 cannot be copied from the key cylinder exposed outside the vehicle, the lock device 8 of the OBD port has higher security than the conventional one.

  (2) The in-vehicle control unit 9 and the lock control unit 13 are configured so that the slide door 12 is displaced using the operation of the switch 14 as a trigger. Thereby, in order to access the OBD port 10, it takes time because a physical operation to the switch 14 is required in addition to the establishment of the ID collation. For this reason, security is further improved.

  (3) Through the first and second hall elements 16 and 17, the slide door 12 is not recognized that the switch 14 has been operated, regardless of whether the slide door 12 is in the locked position or the unlocked position. The lock control unit 13 is configured to generate a signal including information indicating an abnormal operation of the sliding door 12 when the 12 is displaced. And when the signal containing the information which shows abnormal operation | movement was recognized, the vehicle-mounted control part 9 was comprised so that the abnormal operation | movement of the slide door 12 might be notified through the alerting | reporting part 7. FIG.

  That is, when the sliding door 12 is forcibly displaced, information indicating that is notified through the notification unit 7, so that the person who does not have the electronic key 2, the person who does not normally use the vehicle, or the vehicle maintenance is not performed. Unauthorized access to the OBD port 10 by a person is suppressed.

In addition, you may change the said embodiment as follows.
In the above embodiment, instead of the switch 14 that detects physical operation, as shown in FIG. 3, the proximity of the electronic key 2 is detected by detecting the proximity of the electronic key 2. A distance wireless communication unit 18 may be provided. And when ID collation with the electronic key 2 is materialized via the near field communication part 18, the slide door 12 is displaced from a locked position to an unlocked position. With such a configuration, a human operation of holding the electronic key 2 over the short-range wireless communication unit 18 is required, and thus security is improved.

-In above-mentioned embodiment, although the alerting | reporting part 7 provided in a vehicle as alert | reporting abnormal operation was demonstrated, an alerting | reporting part may be provided in an electronic key. In this case, when the vehicle-mounted control unit 9 receives a signal including information indicating an abnormal operation , the in-vehicle control unit 9 wirelessly transmits the signal to the electronic key 2 and notifies the electronic key 2 through the notification unit. Even when configured in this manner, the same effects as those of the above-described embodiment can be obtained.

  In the above embodiment, the lock control unit 13 generates a signal including information indicating an abnormal operation of the slide door 12 when the slide door 12 is displaced without recognizing that the switch 14 is operated. The signal may be generated when the slide door 12 is displaced in a state where the ID verification between the electronic key 2 and the in-vehicle control unit 9 is not established.

  In the above embodiment, the slide door 12 is described as a lock member, but this is an example. The lock member only needs to make it impossible to connect a dedicated connector to the OBD port 10, and various shapes such as a bar shape can be adopted.

  In the above embodiment, the drive source that switches between the state that restricts access to the OBD port 10 and the state that allows access (displaces the slide door 12) is a motor, but another drive source may be employed.

  For example, when a solenoid (solenoid actuator) is employed as the drive source, the OBD port locking device may have the following configuration. In addition, since the structure to which the same code | symbol as the said embodiment was attached | subjected functions similarly to the said embodiment, the description is omitted.

  That is, as shown in FIG. 4A, the OBD port locking device 40 includes a box-shaped case 41 that accommodates the OBD port 10. The case 41 is provided with an opening 42 through which a dedicated connector enters and a swing door 43 that closes and opens the opening 42.

Swing door 43, a plate shape, in contact with the inner surface 41a swing lock position for closing the opening 42 of the case 41 where the opening 42 is provided (solid line in FIG. 4 (a)), the OBD port 10 It swings between the swing unlock position ( two-dot chain line in FIG. 4A) that contacts the inner surface 41b of the case 41 covering the upper portion and opens the opening 42. When the swing door 43 is positioned at the swing unlock position, there is no other configuration between the opening 42 and the OBD port 10. Therefore, in this case, if the dedicated connector is inserted into the case 41 from the opening 42, the dedicated connector and the OBD port 10 can be connected.

  The swing door 43 is always urged toward the swing lock position, that is, counterclockwise in FIG. 4A by a torsion spring 45 provided on the shaft portion 44 at the swing center.

  Further, the locking device 40 of the OBD port includes a switch 46 and a solenoid 47. Both of these configurations are on the swing locus of the swing door 43, and here, the swing unlock is slightly more than the swing lock position of the swing door 43. Provided on the position side.

The switch 46 has an elastic switch piece 48 that is located on the swing locus of the swing door 43 and elastically displaces by contact with the swing door 43.
The solenoid 47 moves onto the swing locus of the swing door 43 and locks the swing door 43 so as to restrict the swing of the swing door 43 (the position shown in FIGS. 4A and 4B). It has a plunger 49 that is pulled into the coil part that constitutes and disengages from the previous swing locus and is displaced between an unlock position (not shown) that allows the swing door 43 to swing. That is, the plunger 49 functions as a lock member.

  It should be noted that the solenoid 47 is located on the swinging locus of the swing door 43 at a position where the distance from the opening 42 is equivalent to the switch 46 or at a position farther from the opening 42 than the switch 46 (OBD port 10 side). Provided.

  Next, the operation of the OBD port lock device 40 will be described. It is assumed that the plunger 49 is positioned at the lock position and the displacement of the swing door 43 from the swing lock position to the swing unlock position is restricted.

  In the lock control unit 13, the ID verification between the electronic key 2 and the in-vehicle control unit 9 is established, and the swing door 43 is pushed from the swing lock position to the swing unlock position through the switch 46. When this is recognized, the solenoid 47 is driven to displace the plunger 49 from the locked position to the unlocked position.

Thereby, the swing of the swing door 43 from the swing lock position to the swing unlock position is allowed. If the user tries to enter the dedicated connector through the opening 42 into the case 41, the swing door 43 is displaced from the swing lock position to the swing unlock position against the biasing force of the torsion spring 45. Further, entry of the dedicated connector into the inside of the case 41 is allowed. This allows connection of the dedicated connectors to the OBD port 10.

  When the dedicated connector is pulled out from the OBD port 10, the swing door 43 swings and returns from the swing unlock position to the swing lock position by the biasing force of the torsion spring 45. At the time of the return, the swing door 43 and the switch 46 (more precisely, the elastic switch piece 48) are in contact with each other. When the lock control unit 13 recognizes that the swing door 43 has returned from the swing unlock position to the swing lock position through the switch 46, the lock control unit 13 drives the solenoid 47 to displace the plunger 49 from the unlock position to the lock position. Let

As described above, even when the OBD port locking device 40 is configured, the same effects as the effects (1) and (2) of the above embodiment can be obtained.
Incidentally, in the another example, the torsion spring 45, as long as it urges the swing door 43 from swinging unlocked position to swinging Douro click position, be another type of spring such as a coil spring Alternatively, an urging member using magnetic force may be used.

In the above embodiment, the magnet 15 and the hall elements 16 and 17 are employed as the position detection unit of the slide door 12, but other position detection units such as a switch that contacts the slide door 12 may be employed.

  In the above embodiment, the electronic key 2 is not limited to a vehicle-dedicated key, and may be a mobile terminal such as a smartphone.

DESCRIPTION OF SYMBOLS 1 ... Electronic key system, 2 ... Electronic key, 3 ... In-vehicle apparatus, 4 ... Communication apparatus, 5 ... Door lock apparatus, 6 ... Engine apparatus, 7 ... Notification part, 8, 40 ... Lock apparatus, 9 ... In-vehicle control part, DESCRIPTION OF SYMBOLS 10 ... OBD port, 11 ... Motor, 12 ... Sliding door, 13 ... Lock control part, 14, 46 ... Switch, 15 ... Magnet, 16, 17 ... Hall element, 18 ... Short-range wireless communication part, 41 ... Case, 42 DESCRIPTION OF SYMBOLS Opening part 43 ... Swing door 44 ... Shaft part 45 ... Torsion spring 47 ... Solenoid 48 ... Elastic switch piece 49 ... Plunger

Claims (4)

A lock member that is displaced between a lock position that restricts access to the OBD port and an unlock position that permits the access by driving the actuator;
A lock control unit that controls the actuator so that the lock member is displaced from the lock position to the unlock position on condition that wireless communication between the in-vehicle control unit and the electronic key is established ;
An operation detection unit for detecting a human operation,
The lock control unit controls the actuator so that the lock member is displaced from the lock position to the unlock position, triggered by a human operation detected through the operation detection unit,
Furthermore, a position detection unit that detects the position of the lock member is provided,
The lock control unit recognizes at least one of the fact that wireless communication between the in-vehicle control unit and the electronic key is not established and that the human operation is not detected, through the position detection unit. A lock device for an OBD port that, when detecting that the lock member has been displaced, informs information indicating that from a notification unit provided in at least one of the vehicle and the electronic key . The OBD port locking device according to claim 1 ,
The operation detection unit is an OBD port lock device that detects a physical operation as the human operation. The OBD port locking device according to claim 1 ,
The operation detection unit is an OBD port lock device that is a short-range wireless communication unit that performs short-range wireless communication with the electronic key by detecting the proximity of the electronic key as the human operation. A lock member that is displaced between a lock position that restricts access to the OBD port and an unlock position that permits the access by driving the actuator;
A lock control unit that controls the actuator so that the lock member is displaced from the lock position to the unlock position on condition that wireless communication between the in-vehicle control unit and the electronic key is established ;
A short-range wireless communication unit for detecting the proximity of the electronic key,
The lock control unit controls the actuator so that the lock member is displaced from the locked position to the unlocked position when triggered by the proximity of the electronic key detected through the short-range wireless communication unit. Port locking device.