JP2016138377A - Vehicle controller and electronic key - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrict at least a part of vehicle control actions that may be realized using an electronic key of the vehicle, in case a user loses track of the electronic key due to loss or the like.SOLUTION: A communication part sends and receives a wireless signal. A first acquisition part (S15) acquires a verification result concerning an electronic key. A second acquisition part (S15) acquires a verification result concerning one or more information terminals. A determination part (S16) approves execution of a first vehicle control command among vehicle control commands of which execution has been requested, when the first acquisition part acquires a verification result indicating successful verification of the electronic key, and the second acquisition part acquires a verification result indicating successful verification of one of the information terminals. A processing part (S17) processes execution of the vehicle control command when the determination part approves execution thereof.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle control device and an electronic key.

  There is a wide need to limit the functions of a device that is carried and used in order to prevent misuse when the device is removed from the user due to theft or loss. Patent Document 1 discloses a configuration of a mobile phone terminal device that can limit its functions and a wireless key device that performs wireless communication with the mobile phone terminal device. Both the cellular phone terminal device and the wireless key device are possessed by the user, and the function of the cellular phone terminal device is limited when the distance between the devices is more than a certain distance.

JP 2006-20004 A

  The needs described above also exist for the electronic key of the vehicle. The electronic key is a device that realizes vehicle control such as locking / unlocking of doors and engine starting via wireless communication with a vehicle, or a device used for authentication when realizing the control. For this reason, if the electronic key is lost and misused, the user may suffer damage such as vehicle theft.

  An object of the present invention is to limit at least a part of vehicle control that can be realized by using an electronic key when the electronic key of the vehicle leaves the user's hand due to loss or the like.

  One aspect of the present invention is a vehicle control device mounted on a vehicle, and includes a communication unit, a first acquisition unit, a second acquisition unit, a determination unit, and a processing unit. The communication unit transmits and receives radio signals to and from a device outside the vehicle. A 1st acquisition part acquires the authentication result about the electronic key which is a key of a vehicle and performs wireless communication with a communication part. The second acquisition unit acquires authentication results for one or a plurality of information terminals that are devices different from the electronic key and can perform wireless communication. The determination unit acquires an authentication result indicating that the authentication of the electronic key has been established for the first vehicle control command of the vehicle control commands requested to be executed, and the one information terminal When the second acquisition unit acquires an authentication result indicating that the authentication is established, it is determined that the execution is possible. A process part performs the process for performing a vehicle control command, when it determines with execution being possible by the determination part. According to such a configuration, even if the authentication of the electronic key is established, the first vehicle control command is not executed unless the authentication of the information terminal is established. Therefore, when the electronic key of the vehicle is away from the user due to loss or the like, if the information terminal is at the user's hand, at least part of the vehicle control that can be realized using the electronic key may be limited. it can.

  Another aspect of the present invention is an electronic key that is used as a vehicle key and performs wireless communication with an in-vehicle device mounted on the vehicle, and includes a communication unit, an authentication unit, and a transmission unit. The communication unit transmits and receives radio signals to and from a device outside the electronic key. The authentication unit receives an authentication code of one or a plurality of information terminals capable of wireless communication via the communication unit, and authenticates the information terminal. The transmission unit transmits the authentication result of the authentication unit and the authentication code of the electronic key to the in-vehicle device via the communication unit. According to such a configuration, the in-vehicle device can perform authentication based on the authentication code and the authentication result of the electronic key transmitted by the transmission unit. The in-vehicle device can perform vehicle control when the authentication of the electronic key is established and the authentication of the information terminal is established (in other words, the vehicle control is performed only when the authentication of the electronic key is established). Can not be). As a result, when the electronic key of the vehicle is away from the user due to loss or the like, if the information terminal is at the user's hand, at least part of the vehicle control that can be realized using the electronic key is restricted. Can do.

  Another aspect of the present invention is an electronic key that is used as a vehicle key and performs wireless communication with an in-vehicle device mounted on the vehicle, and includes a communication unit, an authentication unit, and an authentication code transmission unit. The communication unit transmits and receives radio signals to and from a device outside the electronic key. The authentication unit receives the authentication code of the information terminal transmitted from the information terminal capable of wireless communication via the communication unit, and authenticates the information terminal. The authentication code transmission unit transmits the authentication code of the electronic key to the in-vehicle device via the communication unit on the condition that the authentication by the authentication unit is established. According to such a configuration, since the electronic key transmits its own authentication code to the in-vehicle device for the first time after the authentication of the information terminal is established, the in-vehicle device requests the authentication when there is only the electronic key. It is not determined that the control command can be executed. Therefore, when the electronic key is away from the user's hand, if the information terminal is at the user's hand, at least a part of vehicle control that can be realized using the electronic key can be restricted.

  Another aspect of the present invention is an electronic key that is used as a vehicle key and performs wireless communication with an in-vehicle device mounted on the vehicle, and includes a communication unit, an authentication unit, and a signal transmission unit. The communication unit transmits and receives radio signals to and from a device outside the electronic key. The authentication unit receives the authentication code of the information terminal transmitted from one or a plurality of information terminals capable of wireless communication via the communication unit, and authenticates the information terminal. The signal transmission unit transmits different signals to the in-vehicle device via the communication unit when the authentication unit authenticates at least one information terminal and when no authentication of any information terminal is established. According to such a configuration, the in-vehicle device can determine whether or not the authentication of the information terminal is established based on the received signal. The vehicle control that can be executed can be switched between when the authentication of the information terminal is established and when it is not established. Therefore, when the electronic key is away from the user due to loss or the like, if the information terminal is at the user's hand, at least a part of vehicle control that can be realized using the electronic key can be limited.

It is a block diagram showing the structure of the vehicle of 1st Embodiment, an electronic key, and an information terminal. It is a flowchart of a 1st authentication process. It is a table | surface showing the kind of authentication required in the case of the vehicle control which concerns on a vehicle control command, and its execution. It is a block diagram showing the structure of the vehicle of 2nd and 3rd embodiment, an electronic key, and an information terminal. It is a flowchart of a 2nd authentication process. It is a flowchart of a 3rd authentication process. It is a flowchart of a 4th authentication process. It is a flowchart of a 5th authentication process. FIG. 9A is a table showing another example (1) of the type of authentication required for vehicle control and execution related to the vehicle control command. FIG. 9B is a table showing another example (2) of the types of authentication required for vehicle control and execution thereof according to the vehicle control command. FIG. 9C is a table showing another example (3) of the vehicle control related to the vehicle control command and the type of authentication necessary for the execution thereof.

  Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings. Further, the reference numerals used in the description of the following embodiments are also used in the claims as appropriate, but this is used for the purpose of facilitating the understanding of the present invention, and limits the technical scope of the present invention. Not intended.

[1. First Embodiment]
[1-1. Constitution]
The vehicle 1 shown in FIG. 1 implements a smart keyless system that provides various functions that improve convenience by performing wireless communication with an electronic key 2 used as a key of the vehicle 1. Here, as a function provided by the smart keyless system, for example, if the electronic key 2 is carried, a smart entry function that enables the door to be locked and unlocked without inserting the key into the cylinder, and a smart that enables the engine to start. Examples include a start function. The vehicle 1 performs wireless communication with the information terminals 3 and 4.

The vehicle 1 includes an in-vehicle device 11, and the in-vehicle device 11 includes a first communication unit 111, a second communication unit 112, a storage unit 113, and a control unit 114.
The first communication unit 111 is a device for performing narrow-area wireless communication (wireless communication in the range of about several meters) with the electronic key 2 and can transmit a search radio wave to a predetermined area inside and outside the vehicle. It is possible to receive a response radio wave transmitted from the electronic key 2 that has received. Here, the search radio wave and the response radio wave may be realized at various frequencies, and a well-known communication standard (for example, Bluetooth (registered trademark)) is used for wireless communication between the first communication unit 111 and the electronic key 2. ) May be used. The first communication unit 111 receives the authentication code of the electronic key 2 and receives door slide information, which will be described later, transmitted from the electronic key 2. The authentication code of a certain device is information used for authentication, and may be a number unique to the device, for example.

  The second communication unit 112 performs wireless communication with the information terminals 3 and 4 via radio waves using a protocol such as Wi-Fi (registered trademark) or Bluetooth (registered trademark). The second communication unit 112 receives the authentication code of the information terminals 3 and 4. In addition, as the information terminals 3 and 4, a smart phone etc. are mentioned, for example.

  The storage unit 113 is a device for storing information necessary for authentication of the electronic key 2 and the information terminals 3 and 4. The storage unit 113 is made to collate with the authentication code for collating with the authentication code when the authentication code is transmitted from the electronic key 2 and with the authentication code when the authentication code is transmitted from the information terminals 3 and 4. And at least an authentication code for storage.

  The control unit 114 includes a well-known microcomputer centered on a CPU, ROM, and RAM, and is connected to the first communication unit 111, the second communication unit 112, and the storage unit 113 via an in-vehicle bus 12 that is one network network in the vehicle. Connected.

  The control unit 114 intermittently transmits search radio waves to the first communication unit 111 to form a search radio wave transmission area around the vehicle 1. Further, for example, when the control unit 114 confirms that the user enters the vehicle 1 with a courtesy switch (not shown), the control unit 114 causes the first communication unit 111 to transmit a search radio wave, and forms a search radio wave transmission area throughout the vehicle. To do.

  Moreover, the control part 114 authenticates the electronic key 2 and the information terminals 3 and 4 by performing the 1st authentication process (FIG. 2) mentioned later, and controls the vehicle 1 according to the authentication result Process.

On the other hand, the electronic key 2 includes a third communication unit 21, a storage unit 22, and a control unit 23.
The third communication unit 21 is a device for performing narrow area wireless communication with the vehicle 1, can receive a search radio wave transmitted from the vehicle 1, and can transmit a response radio wave.

The storage unit 22 stores the authentication code of the electronic key 2.
The control unit 23 includes a known microcomputer centered on a CPU, a ROM, and a RAM, and is connected to the third communication unit 21 and the storage unit 22. When the third communication unit 21 receives the search radio wave from the vehicle 1, the control unit 23 causes the third communication unit 21 to transmit the authentication code stored in the storage unit 22 as a reply signal. The electronic key 2 has a switch (not shown; hereinafter referred to as “door slide switch”) for sliding and opening the rear seat door (slide door in the present embodiment) of the vehicle 1 from a location away from the vehicle 1. Is provided. When the door slide switch is pressed, the control unit 23 causes the third communication unit 21 to transmit information (door slide information) requesting an opening operation of the slide door.

The information terminal 3 includes a communication unit 31, a storage unit 32, and a control unit 33.
The communication unit 31 performs wireless communication with the vehicle 1 via radio waves using a protocol such as Wi-Fi or Bluetooth.

The storage unit 32 stores the authentication code of the information terminal 3.
The control unit 33 includes a known microcomputer centering on a CPU, ROM, and RAM, and is connected to the communication unit 31 and the storage unit 32. The control unit 33 causes the communication unit 31 to intermittently transmit the authentication code stored in the storage unit 32. That is, when the information terminal 3 approaches a distance that allows wireless communication with the vehicle 1, the vehicle 1 receives the authentication code of the information terminal 3.

  The information terminal 4 includes a communication unit 41, a storage unit 42, and a control unit 43. Since each of the communication unit 41, the storage unit 42, and the control unit 43 of the information terminal 4 has the same functions as the communication unit 31, the storage unit 32, and the control unit 33 of the information terminal 3, description thereof will be omitted. The information terminal 3 and the information terminal 4 may be the same type of information terminal (for example, both smartphones), or may be different types of information terminals.

[1-2. processing]
Next, the first authentication process executed by the control unit 114 of the vehicle 1 will be described with reference to the flowchart of FIG. The first authentication process is executed when a vehicle control command that requires authentication of the electronic key 2 and the information terminals 3 and 4 is issued. Here, the vehicle control command is a signal transmitted through the vehicle 1 indicating that execution of vehicle control is requested. That is, in the first authentication process, one of the switches for unlocking the door (not shown; hereinafter referred to as “door unlocking switch”) in the smart entry provided on the handle of each seat door of the vehicle 1 is pressed. It is executed when it is done. The first authentication process is also executed when a switch for starting the engine in smart start (not shown; hereinafter referred to as “engine start switch”) is pressed. Furthermore, the first authentication process is also executed when the first communication unit 111 receives door slide information from the electronic key 2.

  First, the control unit 114 determines whether or not the first communication unit 111 has received the authentication code of the electronic key 2 in S11 (S represents a step). When it is determined that the first communication unit 111 has not received the authentication code of the electronic key 2 (S11: NO), the control unit 114 ends the first authentication process. That is, the vehicle control requested to be executed is not executed.

  On the other hand, when it is determined that the first communication unit 111 has received the authentication code of the electronic key 2 (S11: YES), the control unit 114 authenticates the electronic key 2 and stores the authentication result in the storage unit 113. (S12). Here, the control unit 114 authenticates the electronic key 2 by determining whether or not the received authentication code of the electronic key 2 and the authentication code stored in the storage unit 113 are the same.

  Subsequently, the control unit 114 determines whether or not the second communication unit 112 has received the authentication code of the information terminals 3 and 4 (S13). Here, the control unit 114 receives the authentication code of the information terminals 3 and 4 when the second communication unit 112 receives the authentication code from at least one of the information terminal 3 and the information terminal 4. It is determined that Conversely, when the second communication unit 112 has not received the authentication code from either the information terminal 3 or the information terminal 4, the control unit 114 determines that the second communication unit 112 has received the authentication code of the information terminals 3 and 4. Is determined not to be received.

  When the control unit 114 determines that the second communication unit 112 has not received the authentication code of the information terminals 3 and 4 (S13: NO), the control unit 114 ends the first authentication process. Also in this case, the vehicle control requested to be executed is not executed.

  On the other hand, when it determines with the 2nd communication part 112 having received the authentication code of the information terminals 3 and 4 (S13: YES), the control part 114 authenticates the information terminals 3 and 4, and memorize | stores the authentication result. The information is stored in the unit 113 (S14). The control unit 114 authenticates the information terminals 3 and 4 by determining whether or not the received authentication code of the information terminals 3 and 4 is the same as the authentication code stored in the storage unit 113.

  Subsequently, the control unit 114 acquires the authentication result from the storage unit 113 (S15), and determines whether or not the vehicle control command requested to be executed is executable (S16). The vehicle control command in this embodiment includes a vehicle control command (door unlock command) for requesting unlocking of all seat doors of the vehicle 1, a vehicle control command (engine start command) for requesting engine start, There are at least three types of vehicle control commands (door slide commands) that require an opening operation. The vehicle control command in S16 is a door unlocking command when the first authentication process is executed when the door unlocking switch is pressed, and the first authentication process is executed when the engine start switch is pressed. If it is, it is an engine start command. Further, when the first authentication process is started when the first communication unit 111 receives door slide information from the electronic key 2, it is a door slide command.

  In S16, the control unit 114 determines whether or not the vehicle control command requested to be executed is executable based on the determination criteria shown in FIG. 3 (in FIG. 3, the vehicle control and the execution related to the vehicle control command are executed). The type of authentication required to be judged as acceptable). That is, the control unit 114 acquires an authentication result indicating that the authentication of the electronic key 2 is established for the door unlocking command (unlocking all seat doors), and at least one of the information terminal 3 and the information terminal 4 When the authentication result indicating that the authentication is established is acquired, it is determined to be executable.

  In addition, for the engine start command (engine start), the control unit 114 acquires an authentication result indicating that the authentication of the electronic key 2 has been established, and obtains an authentication result indicating that the authentication of the information terminal 3 has been established. When acquired, it is determined that execution is possible. In the present embodiment, it is assumed that the information terminal 3 is carried by the parent and the information terminal 4 is carried by the child. Therefore, even if the authentication of the electronic key 2 and the authentication of the child information terminal 4 are established, the engine start is not realized, and the engine start is performed when the authentication of the electronic key 2 and the authentication of the parent information terminal 4 are established. Realized.

  In addition, for the door slide command (sliding door opening operation), the control unit 114 acquires an authentication result indicating that the authentication of the electronic key 2 is established, and authenticates both the information terminal 3 and the information terminal 4. Is determined to be executable when an authentication result indicating that is established is obtained. Here, the establishment of such authentication is assumed to occur, for example, when both the parent who has the information terminal 3 and the child who has the information terminal 4 approach the vehicle 1. In the present embodiment, the control unit 114 does not determine that any vehicle control command is executable when only the authentication of the electronic key 2 is established. Based on such a determination criterion, the control unit 114 determines whether or not the vehicle control command requested to be executed is executable.

  When it is determined that the vehicle control command requested to be executed is executable (S16: YES), the control unit 114 executes a process (vehicle control process) for executing the vehicle control command determined to be possible. (S17), and the first authentication process is terminated. Here, the vehicle control process may be a process of transmitting information indicating that an operation device such as an actuator that actually executes vehicle control is operated, or may be sent to another control unit that controls the operation of the operation device. The process which transmits the information to the effect that a vehicle control command is executable may be sufficient.

  On the other hand, when it is determined that the vehicle control command requested to be executed is not executable, that is, when it is determined that the vehicle is not executable (S16: NO), the control unit 114 skips the process of S17 described above (that is, The first authentication process is terminated without executing the vehicle control process.

[1-3. effect]
According to the first embodiment described in detail above, the following effects can be obtained.
(1a) In the present embodiment, the control unit 114 acquires an authentication result indicating that the authentication of the electronic key 2 has been established, and indicates that at least one of the information terminal 3 and the information terminal 4 has been authenticated. When the authentication result is acquired, it is determined that the vehicle control command can be executed. That is, in this embodiment, even if the authentication of the electronic key 2 is established, if the authentication of the information terminal 3 and the information terminal 4 is not established, it is not determined that any vehicle control command is executable. Therefore, even when the electronic key 2 is away from the user due to loss or the like, if the information terminal 3 and the information terminal 4 are at the user's hand, all vehicle control that can be realized using the electronic key 2 is restricted. can do.

  (1b) In this embodiment, since the vehicle 1 performs all authentication (authentication of the electronic key 2 and authentication of the information terminals 3 and 4), the electronic key 2 only needs to transmit its own authentication code. Therefore, a conventional electronic key having only an authentication code transmission function can be used as the electronic key 2.

  (1c) In this embodiment, when the authentication of the electronic key 2 and the information terminal 3 is established, it is determined that the door unlocking command and the engine start command can be executed, and the authentication of the electronic key 2 and the information terminal 4 is established. In this case, it is determined that only the door unlocking command can be executed. That is, the vehicle control command that is determined to be executable varies depending on which information terminal is combined with the electronic key 2 (either the information terminal 3 or the information terminal 4). Therefore, when each of the plurality of information terminals is carried by a different user, the vehicle control command that is determined to be executable by the user can be changed.

  In the present embodiment, when the information terminal 3 or the information terminal 4 is combined with the electronic key 2, it is determined that at least one of the door unlocking command and the engine start command is executable, and the information key 3 and the information key are connected to the electronic key 2. When the terminal 4 is combined, it is determined that the door slide command can be executed in addition to the door unlock command and the engine start command. That is, in this embodiment, the vehicle control command that is determined to be executable varies depending on the number of information terminals combined with the electronic key 2. Therefore, when each of the plurality of information terminals is carried by different users, there can be a vehicle control command that is determined to be executable only when a plurality of users gather.

  (1d) In the present embodiment, the control unit 114 authenticates a plurality of information terminals (information terminals 3 and 4). Then, the control unit 114 determines that the door unlocking command can be executed when the authentication of the electronic key 2 is established and at least one of the information terminal 3 and the information terminal 4 is authenticated. Further, the control unit 114 determines that the engine start command can be executed only when the authentication of the electronic key 2 is established and the authentication of the information terminal 3 is established. In this way, by incorporating authentication of a plurality of information terminals, a vehicle control command that is determined to be executable regardless of which information terminal is combined with the electronic key 2 and a specific information terminal combined with the electronic key 2 There may be a vehicle control command that is determined to be executable only occasionally.

  Further, the control unit 114 determines that the door slide command can be executed when the authentication of the electronic key 2 is established and the authentication of both the information terminal 3 and the information terminal 4 is established. Thus, by incorporating authentication of a plurality of information terminals, it is not executed when authentication of the electronic key 2 and one information terminal is established, but when authentication of the electronic key 2 and the plurality of information terminals is established. There can be vehicle control to be realized.

  (1e) In the present embodiment, the control unit 114 executes the first authentication process when a door unlocking switch and an engine start switch provided on the vehicle 1 are pressed. In addition, the control unit 114 performs the first authentication process when the first communication unit 111 receives door slide information transmitted from the electronic key 2 when a door slide switch provided on the electronic key 2 is pressed. Executed. Therefore, in this embodiment, authentication can be performed when authentication of the electronic key 2 and the information terminals 3 and 4 is required.

[1-4. Contrast with the terms in the claims]
In the present embodiment, the in-vehicle device 11 corresponds to an example of a vehicle control device, the first communication unit 111 and the second communication unit 112 correspond to an example of a communication unit, and S15 as a first acquisition unit and a second acquisition unit. The door unlock command and the engine start command correspond to an example of the first vehicle control command, and S16 corresponds to an example of the processing as the determination unit. In addition, S17 corresponds to an example of processing as a processing unit, S12 corresponds to an example of processing as a first authentication unit, S14 corresponds to an example of processing as a second authentication unit, and the first communication unit 111. Corresponds to an example of an electronic key communication unit, and the second communication unit 112 corresponds to an example of an information terminal communication unit. The door unlocking command corresponds to an example of a second vehicle control command, the information terminal 3 corresponds to an example of a first information terminal, the information terminal 4 corresponds to an example of a second information terminal, the engine The start command corresponds to an example of a third vehicle control command, and the door slide command corresponds to an example of a fourth vehicle control command. Further, the door unlocking switch and the engine start switch correspond to an example of a predetermined operation unit provided in the vehicle, and pressing corresponds to an example of the operation. The door slide switch corresponds to an example of a predetermined switch provided on the electronic key, and door slide information is an example of a signal transmitted from the electronic key when the predetermined switch provided on the electronic key is pressed. Equivalent to.

[2. Second Embodiment]
[2-1. Difference from the first embodiment]
Since the basic configuration of the second embodiment is the same as that of the first embodiment, the description of the common configuration will be omitted, and the description will focus on the differences. Moreover, the same code | symbol is used for a common structure.

  The vehicle 5 shown in FIG. 4 performs wireless communication only with an electronic key 6 described later, and the electronic key 6 performs wireless communication with the vehicle 5 and one information terminal 3 described above. The information terminal 3 performs wireless communication with only the electronic key 6. The vehicle 5 includes an in-vehicle device 51, and the in-vehicle device 51 does not include the second communication unit 112 described above as compared with the in-vehicle device 11 of the first embodiment, and replaces the storage unit 113 and the control unit 114 described above. The difference is that a storage unit 511 and a control unit 512 are provided.

  The storage unit 511 has the same hardware configuration as the storage unit 113 of the first embodiment, but stores different information. The storage unit 511 stores at least an authentication code to be collated with the authentication code of the electronic key 6.

  The control unit 512 has the same hardware configuration as that of the control unit 114 of the first embodiment, but the processing to be executed is different. The control unit 512 intermittently transmits a search radio wave around the vehicle 7 via the first communication unit 111 and transmits a search radio wave throughout the vehicle 7. The control unit 114 authenticates the electronic key 2 by executing a third authentication process (FIG. 6) described later, and performs a process for controlling the vehicle 1 according to the authentication result.

  On the other hand, the electronic key 6 further includes a fourth communication unit 61 as compared with the electronic key 2 of the first embodiment, and includes a storage unit 62 and a control unit 63 instead of the storage unit 22 and the control unit 23 described above. It is different in point.

  The fourth communication unit 61 performs wireless communication with the information terminal 3 via radio waves using a protocol such as Wi-Fi or Bluetooth, and receives the authentication code of the information terminal 3. As in the first embodiment, the information terminal 3 intermittently transmits its own authentication code to the surroundings, and when the fourth communication unit 61 approaches a distance that allows wireless communication with the information terminal 3, the information terminal 3 authentication code is received.

  The storage unit 62 has the same hardware configuration as the storage unit 22 of the first embodiment, but stores different information. The storage unit 62 stores an authentication code of the electronic key 6 and stores an authentication code for collating with the authentication code when the authentication code is transmitted from the information terminal 3.

  The control unit 63 has the same hardware configuration as that of the control unit 23 of the first embodiment, but the processing to be executed is different. The control unit 63 authenticates the information terminal 3 by executing a second authentication process (FIG. 5) to be described later, and sends the authentication result and the authentication code of the electronic key 6 to the third communication unit 21 to the vehicle 5. Send it.

The configuration of the information terminal 3 of the second embodiment is the same as that of the first embodiment.
[2-2. processing]
Next, the second authentication process executed by the control unit 63 of the electronic key 6 will be described with reference to the flowchart of FIG. The second authentication process is executed when the third communication unit 21 receives a search radio wave from the vehicle 5.

  First, the control unit 63 determines whether or not the fourth communication unit 61 has received the authentication code of the information terminal 3 (S21). When it is determined that the fourth communication unit 61 has not received the authentication code of the information terminal 3 (S21: NO), the control unit 63 ends the second authentication process.

On the other hand, when it is determined that the fourth communication unit 61 has received the authentication code of the information terminal 3 (S21: YES), the control unit 63 authenticates the information terminal 3 (S22).
Subsequently, the control unit 63 causes the third communication unit 21 to transmit the authentication result of the information terminal 3 and the authentication code of the electronic key 6 to the vehicle 5 (S23), and ends the second authentication process.

  Next, the 3rd authentication process which the control part 512 of the vehicle 5 performs is demonstrated using the flowchart of FIG. The third authentication process is executed when a door unlocking switch or an engine start switch provided on the vehicle 5 is pressed.

  First, the control unit 512 determines whether or not the first communication unit 111 has received the authentication result of the information terminal 3 and the authentication code of the electronic key 6 from the electronic key 6 (S31). When it is determined that the first communication unit 111 has not received the authentication result of the information terminal 3 and the authentication code of the electronic key 6 (S31: NO), the control unit 512 ends the third authentication process. That is, the vehicle control requested to be executed is not executed.

  On the other hand, when it is determined that the first communication unit 111 has received the authentication result for the information terminal 3 and the authentication code for the electronic key 6 (S31: YES), the control unit 512 stores the authentication result for the information terminal 3 The data is stored in the unit 511 (S33).

  And the control part 512 authenticates the electronic key 6 based on the authentication code of the electronic key 6 received by the 1st communication part 111, and memorize | stores the authentication result in the memory | storage part 511 (S33).

  Subsequently, the control unit 512 acquires an authentication result from the storage unit 511 (S34), and determines whether or not the vehicle control command requested to be executed is executable (S35). In the present embodiment, there are at least two types of vehicle control commands, a door unlock command and an engine start command. The control unit 512 acquires an authentication result indicating that the authentication of the electronic key 6 has been established for both the door unlocking command and the engine start command, and obtains an authentication result indicating that the authentication of the information terminal 3 has been established. When acquired, it is determined that execution is possible.

  When it is determined that the vehicle control command requested to be executed is executable (S35: YES), the control unit 512 executes the vehicle control process (S36) and ends the third authentication process. On the other hand, when it is determined that the vehicle control command requested to be executed is not executable (S35: NO), the control unit 512 skips the process of S36 described above and ends the third authentication process.

[2-3. effect]
(2a) In this embodiment, authentication of the information terminal 3 is performed with the electronic key 6, and the vehicle 5 executes based on the authentication result of the information terminal 3 transmitted from the electronic key 6 and the authentication code of the electronic key 6. It is determined whether or not the vehicle control command for which is requested can be executed. Therefore, even if the vehicle 5 and the information terminal 3 are separated so as not to perform wireless communication, the authentication of the information terminal 3 is performed if the electronic key 6 and the information terminal 3 are close enough to perform wireless communication. It can be carried out. In addition, since the vehicle 5 only needs to authenticate the electronic key 6 without authenticating the information terminal 3, the processing load of the control unit 512 of the vehicle 5 can be reduced.

[2-4. Contrast with the terms in the claims]
In the present embodiment, the in-vehicle device 51 corresponds to an example of a vehicle control device, the first communication unit 111 corresponds to an example of a communication unit, and S34 corresponds to an example of processing as a first acquisition unit and a second acquisition unit. S35 corresponds to an example of processing as a determination unit. In addition, S36 corresponds to an example of processing as a processing unit, and S33 corresponds to an example of processing as a first authentication unit. The third communication unit 21 and the fourth communication unit 61 correspond to an example of a communication unit, S22 corresponds to an example of a process as an authentication unit, and S23 corresponds to an example of a process as a transmission unit. Moreover, about the structure in 2nd Embodiment, and a structure which is common in 1st Embodiment, it corresponds to the structure of a claim similarly to 1st Embodiment.

[3. Third Embodiment]
[3-1. Constitution]
Since the basic configuration of the third embodiment is the same as that of the second embodiment, the description of the common configuration will be omitted, and the description will focus on the differences. Moreover, the same code | symbol is used for a common structure.

  A vehicle 7 shown in FIG. 4 includes an in-vehicle device 71. The in-vehicle device 71 is different from the in-vehicle device 51 of the second embodiment in place of the storage unit 511 and the control unit 512 described above, and the storage unit 711 and the control unit. The difference is that 712 is provided.

The storage unit 711 stores a first authentication code and a second authentication code transmitted from an electronic key 8 described later.
The control unit 712 has the same hardware configuration as that of the control unit 512 of the second embodiment, but the processing to be executed is different. The control unit 712 executes a fifth authentication process (FIG. 8) described later.

  On the other hand, the electronic key 8 is different from the electronic key 6 of the second embodiment in that a storage unit 81 and a control unit 82 are provided instead of the storage unit 62 and the control unit 63 described above. The fourth communication unit 61 receives the authentication code of the information terminal 3.

  In the storage unit 81, two types of authentication codes (first authentication code and second authentication code) are stored. In addition, the storage unit 81 stores an authentication code for collating with the authentication code when the authentication code is transmitted from the information terminal 3.

The control unit 82 has the same hardware configuration as that of the control unit 63 of the second embodiment, but the processing to be executed is different. The control unit 82 executes a fourth authentication process (FIG. 7) described later.
The configuration of the information terminal 3 of the third embodiment is the same as that of the second embodiment.

[3-2. processing]
Next, the fourth authentication process executed by the control unit 82 of the electronic key 8 will be described with reference to the flowchart of FIG. The fourth authentication process is executed when the third communication unit 21 receives a request signal transmitted from the vehicle 7. The request signal here is a signal for requesting transmission of an authentication code from the electronic key 8 and is issued from the vehicle 7 when a door unlocking switch or an engine start switch provided on the vehicle 7 is pressed.

  First, the control unit 82 determines whether or not the fourth communication unit 61 has received the authentication code of the information terminal 3 (S41). When it is determined that the fourth communication unit 61 has not received the authentication code of the information terminal 3 (S41: NO), the control unit 82 passes the second authentication code to the vehicle 7 via the third communication unit 21. (S42) and the fourth authentication process is terminated.

On the other hand, when it is determined that the fourth communication unit 61 has received the authentication code of the information terminal 3 (S41: YES), the control unit 82 authenticates the information terminal 3 (S43).
Subsequently, the control unit 82 determines whether or not the authentication of the information terminal 3 has been established based on the result of the authentication in S43 (S44). When determining that the authentication of the information terminal 3 has not been established (S44: NO), the control unit 82 executes the process of S42 described above, and ends the fourth authentication process. On the other hand, when it determines with the authentication of the information terminal 3 having been materialized (S44: YES), the control part 82 transmits a 1st authentication code to the vehicle 7 via the 3rd communication part 21 (S45). That is, the control unit 82 causes the third communication unit 21 to transmit the first authentication code when the authentication of the information terminal 3 is established, and when the authentication of the information terminal 3 is not established (authentication of the information terminal 3). (Including a case where authentication is not established because no code is received), the second authentication code is transmitted to the vehicle 7.

  Next, the 5th authentication process which the control part 712 of the vehicle 7 performs is demonstrated using the flowchart of FIG. The fifth authentication process is executed when a door unlocking switch or an engine start switch provided on the vehicle 7 is pressed.

  First, the control unit 712 transmits a request signal to the electronic key 8 via the first communication unit 111 and waits for a predetermined time (S51). Thereafter, the control unit 712 determines whether or not the first communication unit 111 has received the first authentication code or the second authentication code (S52). When it is determined that the first communication unit 111 has received neither the first authentication code nor the second authentication code (S52: NO), the control unit 712 ends the fifth authentication process.

  On the other hand, when it is determined that the first communication unit 111 has received the first authentication code or the second authentication code (S52: YES), the control unit 712 can execute the vehicle control command requested to be executed. It is determined whether or not there is (S53). In the present embodiment, there are at least two types of vehicle control commands, a door unlock command and an engine start command, and the control unit 712 controls the electronic key 8 and the information terminal 3 for both the door unlock command and the engine start command. When it is determined that the authentication is established, it is determined that execution is possible. When determining that the first communication unit 111 has received the first authentication code or the second authentication code in S52, the control unit 712 determines that the authentication of the electronic key 8 has been established. If the control unit 712 determines that the first communication unit 111 has received the first authentication code, the control unit 712 determines that authentication of the information terminal 3 has been established, and the first communication unit 111 receives the second authentication code. If it determines with having performed, it will determine with the authentication of the information terminal 3 not being materialized.

  When it is determined that the vehicle control command requested to be executed is executable based on such a determination criterion (S53: YES), the control unit 712 executes a vehicle control process (S54), and the fifth authentication End the process. On the other hand, when it is determined that the vehicle control command requested to be executed is not executable (S53: NO), the control unit 712 skips the process of S54 described above (that is, without executing the vehicle control command), 5. Complete the authentication process.

[3-3. effect]
In the present embodiment, the electronic key 8 transmits a first authentication code when the authentication of the information terminal 3 is established, and transmits a second authentication code when the authentication of the information terminal 3 is not established. That is, the electronic key 8 transmits a different signal (first authentication code or second authentication code) to the vehicle 7 when the authentication of the information terminal 3 is established and when it is not established. Therefore, in the present embodiment, the vehicle 7 can determine whether or not the authentication of the information terminal 3 has been established based on the received signal. And the vehicle control command determined to be executable can be switched between when the authentication of the information terminal 3 is established and when it is not established. Therefore, in the configuration of the present embodiment, the same effect as (1a) of the first embodiment described above can be obtained.

[3-4. Contrast with the terms in the claims]
In the present embodiment, the third communication unit 21 and the fourth communication unit 61 correspond to an example of a communication unit, S43 corresponds to an example of a process as an authentication unit, and S42 and S45 are an example of a process as a signal transmission unit. It corresponds to.

[4. Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention can take a various form, without being limited to the said embodiment.

  (4a) In the first embodiment, the vehicle control related to the vehicle control command is the unlocking of all seat doors of the vehicle 1, but is not limited thereto. For example, vehicle control related to the vehicle control command includes locking of all seat doors of the vehicle 1, locking and unlocking of the doors of one seat of the vehicle 1, opening and closing operations of the back door, and the outside of the vehicle by the lighting fixture provided in the vehicle 1. The irradiation in the vicinity of each seat door of the vehicle 1 and the unlocking of the trunk may be used. Further, the combination of the types of vehicle control that can be executed and the authentication necessary for the execution (hereinafter referred to as “control pattern”) is not limited to that of the first embodiment, and for example, FIG. 9 (A) to FIG. The thing shown to (C) is mentioned.

  With the control pattern shown in FIG. 9A, only unlocking of all seat doors and engine starting of the vehicle 1 can be realized. In this control pattern, the control unit 114 determines that the vehicle control command for requesting the unlocking of all seat doors of the vehicle 1 is executable when the authentication of the electronic key 2 is established. Further, the control unit determines that the vehicle control command for requesting engine start is executable when the authentication of the electronic key 2 is established and at least one of the information terminal 3 and the information terminal 4 is established. To do. That is, in this control pattern, there is vehicle control (unlocking of all seat doors) that is determined to be executable only when the electronic key 2 is authenticated. Further, there is no vehicle control that is determined to be executable only after all authentication of the electronic key, the information terminal 3 and the information terminal 4 is established.

  In the control pattern shown in FIG. 9B, the engine start of the vehicle 1, the driver's seat door unlocking, the passenger seat door unlocking and the all seat door unlocking can be executed. In this control pattern, the control unit 114 determines that the vehicle control command for requesting engine start is executable when the authentication of the electronic key 2 is established and the authentication of the information terminal 3 is established. Moreover, the control part 114 determines with respect to the vehicle control command which requests | requires unlocking | restoring of a driver's seat door, when the authentication of the electronic key 2 is materialized and the authentication of the information terminal 3 is materialized. Further, the control unit 114 determines that the vehicle control command for requesting unlocking of the passenger seat door is executable when the authentication of the electronic key 2 is established and the authentication of the information terminal 4 is established. In this example, it is assumed that the information terminal 3 is carried by the driver of the vehicle 1 and the information terminal 4 is carried by another occupant. Further, the control unit 114 executes the vehicle control command for requesting the unlocking of all seat doors when the authentication of the electronic key 2 is established and the authentication of both the information terminal 3 and the information terminal 4 is established. Judge that it is possible. That is, in this control pattern, when the authentication of the electronic key 2 and the authentication of one of the information terminal 3 and the information terminal 4 are established, only one seat door is unlocked. However, when all the authentications of the electronic key, the information terminal 3 and the information terminal 4 are established, it is determined that the unlocking of all the seat doors can be performed.

  Further, in the control pattern shown in FIG. 9C, unlocking of all seat doors of the vehicle 1, engine starting, and unlocking of the trunk can be realized. In this control pattern, the control unit 114 establishes the authentication of the electronic key 2 and the authentication of at least one of the information terminal 3 and the information terminal 4 for the vehicle control command for requesting the unlocking of all seat doors. In this case, it is determined that execution is possible. Further, the control unit 114 determines that the vehicle control command for requesting engine start is executable when the authentication of the electronic key 2 is established and at least one of the information terminal 3 and the information terminal 4 is established. judge. Moreover, the control part 114 determines with respect to the vehicle control command which requests | requires unlocking of a trunk, when the authentication of the electronic key 2 is materialized and the authentication of the information terminal 3 is materialized. That is, in this control pattern, it is determined that the trunk can be unlocked when the authentication of the electronic key 2 and the authentication of the information terminal 3 are established.

  (4b) The timing at which the vehicle, the electronic key, and the information terminal transmit the authentication code is not limited to that in the above embodiment. For example, in the above-described embodiment, the information terminals 3 and 4 intermittently transmit their own authentication codes, but the present invention is not limited to this. For example, when the electronic key receives a search radio wave from the vehicle, the electronic key transmits a signal requesting transmission of an authentication code to the information terminal, and when receiving the signal, the information terminal transmits the authentication code. May be.

  (4c) In the first embodiment, the vehicle 1 is a device (the electronic key 2 and the information terminal 3) outside the vehicle 1 via the two communication units (the first communication unit 111 and the second communication unit 112). Although wireless communication with 4) is performed, the present invention is not limited to this, and wireless communication may be performed by one communication unit. Similarly, in the second and third embodiments, the electronic keys 6 and 8 are devices external to the electronic keys 6 and 8 via two communication units (the third communication unit 21 and the fourth communication unit 61). However, the present invention is not limited to this, and wireless communication may be performed by one communication unit.

  (4d) In the above embodiments, the control units 114, 512, and 712 included in the vehicles 1, 5, and 7 and the storage units 113, 511, and 711 are separate bodies. The part may be integrated. Further, a partial function of the storage unit (for example, storage of an authentication result) may be realized by a RAM of a microcomputer included in the control unit. Similarly, the control units 23, 63, 82 and the storage units 22, 62, 81 included in the electronic keys 2, 6, 8 are separate from each other. However, the present invention is not limited to this, and the control unit and the storage unit are integrated. There may be. Further, a partial function of the storage unit (for example, storage of an authentication result) may be realized by a RAM of a microcomputer included in the control unit.

(4e) In each of the above embodiments, one or two information terminals are authenticated. However, the present invention is not limited to this, and two or more information terminals or three or more information terminals may be authenticated.
(4f) In the first embodiment, the first authentication process performed by the vehicle 1 is performed when the door unlocking switch provided in the vehicle 1 is pressed. However, the first authentication process is performed. However, this is not a limitation. For example, the first authentication process may be executed when the vehicle determines whether or not an electronic key has entered a predetermined area around the vehicle and determines that the electronic key has entered the area. . Similarly, the third and fifth authentication processes executed by the vehicles 5 and 7 and the second and fourth authentication processes executed by the electronic keys 6 and 8 are not limited to those in the above embodiment.

  (4g) In each of the above embodiments, the predetermined operation unit provided in the vehicle is a door unlocking switch and an engine start switch, and the operation is a push, but the operation unit and its operation are not limited thereto. . For example, the operation unit may be a touch sensor provided on the handle of each seat door of the vehicle, and the operation may be touching the touch sensor. In each of the above embodiments, the predetermined switch provided on the electronic key is a door slide switch, but the predetermined switch is not limited thereto.

  (4h) In the second embodiment, the electronic key 6 performs authentication of the information terminal 3 when receiving the search radio wave from the vehicle 5, but is not limited to this. For example, authentication of the information terminal is performed in advance (for example, This may be done when the electronic key and the information terminal are away from the vehicle. In this case, the state where the information terminal is authenticated by the electronic key may continue (that is, the electronic key and the information terminal may be linked). In addition, in order to suppress damage such as vehicle theft, the above-described linked state may be continued only for a certain period of time, or may be canceled once vehicle control is executed using an electronic key.

  (4i) How authentication is performed (to which device (vehicle, electronic key and information terminal) the authentication code is transmitted or not, which device performs authentication, etc.) is not limited to that of the above embodiment. . For example, the information terminal may transmit its own authentication code to the electronic key, the electronic key may transmit the authentication code of the information terminal and its own authentication code to the vehicle, and the electronic key and the information terminal may be authenticated by the vehicle.

  Also, for example, in a configuration in which an electronic key authenticates an information terminal, if the electronic key is not authenticated for the information terminal, the authentication code for the electronic key is not transmitted to the vehicle, and the information terminal is authenticated. The authentication code of the electronic key may be transmitted to the vehicle only when it is done. That is, the electronic key may transmit the authentication code of the electronic key to the vehicle at least on the condition that the authentication of the information terminal is established. In this case, the electronic key may transmit the authentication code of the electronic key on the condition that authentication of one information terminal is established, and on the condition that authentication of a plurality of information terminals is established. An electronic key authentication code may be transmitted. In the latter case, specifically, for example, when at least one of the information terminals 3 and 4 is not authenticated, the authentication code of the electronic key is not transmitted to the vehicle, and at least both of the information terminals 3 and 4 are used. The authentication code of the electronic key may be transmitted on condition that the authentication is established.

  (4j) In the third embodiment, the electronic key 8 authenticates one information terminal 3 and transmits different signals depending on whether or not the authentication of the information terminal 3 is established. It is not limited to this. For example, in a configuration in which an electronic key authenticates two or more information terminals, different signals are transmitted when at least one information terminal authentication is established and when no authentication of any information terminal is established. May be. Further, the electronic key may transmit a different signal depending on the number of information terminals that have been successfully authenticated. Further, for example, in a configuration in which the electronic key authenticates a plurality of information terminals (for example, two information terminals 3 and 4), the electronic key is used when the authentication of the information terminal 3 is established and when the authentication of the information terminal 4 is established. A different signal may be transmitted to the vehicle when it is established. That is, the electronic key may transmit different signals depending on the information terminal.

  (4k) In the third embodiment, the electronic key 8 authenticates the information terminal in the fifth authentication process (that is, the process started when the request signal from the vehicle 7 is received). Not limited to. For example, the electronic key has already authenticated the information terminal in advance, and in the process started when the request signal from the vehicle is received, the authentication result is referred to and the first authentication code or the second An authentication code may be sent.

  (4l) The functions of one component in the above embodiment may be distributed as a plurality of components, or the functions of a plurality of components may be integrated into one component. Further, at least a part of the configuration of the above embodiment may be replaced with a known configuration having the same function. Moreover, you may abbreviate | omit a part of structure of the said embodiment. In addition, at least a part of the configuration of the above embodiment may be added to or replaced with the configuration of the other embodiment. In addition, all the aspects included in the technical idea specified only by the wording described in the claim are embodiment of this invention.

  DESCRIPTION OF SYMBOLS 1,5,7 ... Vehicle, 2, 6, 8 ... Electronic key, 3, 4 ... Information terminal, 11, 51, 71 ... In-vehicle device, 12 ... In-vehicle bus, 21 ... Third communication part, 22, 62, 81 ... Electronic key storage unit, 23, 63, 82 ... Electronic key control unit, 31, 41 ... Information terminal communication unit, 32, 42 ... Information terminal storage unit, 33, 43 ... Information terminal control unit, 61 ... 4th communication part, 111 ... 1st communication part, 112 ... 2nd communication part, 113,511,711 ... Storage part of vehicle, 114,512,712 ... Control part of vehicle.

Claims (13)

A vehicle control device (11, 51) mounted on a vehicle (1, 5),
A communication unit (111, 112) for transmitting and receiving radio signals to and from a device outside the vehicle;
A first acquisition unit (S15, S34) that acquires an authentication result of the electronic key (2, 6) that is a key of the vehicle and wirelessly communicates with the communication unit;
A second acquisition unit (S15, S34) for acquiring an authentication result for one or a plurality of information terminals (3, 4) which is a device different from the electronic key and capable of wireless communication;
An authentication result indicating that the authentication of the electronic key is established for the first vehicle control command of the vehicle control commands requested to be executed is acquired by the first acquisition unit, and one of the information terminals A determination unit (S16, S35) that determines that execution is possible when an authentication result indicating that authentication has been established is acquired by the second acquisition unit;
A processing unit (S17, S36) for performing a process for executing the vehicle control command that is determined to be possible when the determination unit determines that the execution is possible;
A vehicle control device comprising: The vehicle control device according to claim 1,
Furthermore,
A first authentication unit (S12) that receives the authentication code of the electronic key transmitted from the electronic key via the communication unit and authenticates the electronic key;
A second authentication unit (S14) that receives the authentication code of the information terminal transmitted from the information terminal via the communication unit and authenticates the information terminal;
The first acquisition unit acquires an authentication result for the electronic key from the first authentication unit,
The second acquisition unit acquires an authentication result for the information terminal from the second authentication unit.
Vehicle control device. The vehicle control device according to claim 1 or 2,
The said communication part is a vehicle control apparatus provided with the electronic key communication part (111) which performs wireless communication with the said electronic key, and the information terminal communication part (112) which performs wireless communication with the said information terminal. The vehicle control device according to claim 1,
Furthermore,
A first authentication unit (S33) that receives the authentication code of the electronic key transmitted from the electronic key via the communication unit and authenticates the electronic key;
The first acquisition unit acquires an authentication result for the electronic key from the first authentication unit,
The second acquisition unit acquires an authentication result for the information terminal from the electronic key.
Vehicle control device. The vehicle control device according to claim 1,
Furthermore,
An authentication unit that receives the authentication code of the electronic key and the authentication code of the information terminal transmitted from the electronic key via the communication unit, and performs authentication of the electronic key and authentication of the information terminal,
The first acquisition unit acquires an authentication result for the electronic key from the authentication unit,
The second acquisition unit acquires an authentication result for the information terminal from the authentication unit.
Vehicle control device. The vehicle control device according to any one of claims 1 to 5, wherein
In the determination performed by the determination unit, a vehicle control command that is determined to be executable is changed by at least one of the information terminal combined with the electronic key and the number thereof. The vehicle control device according to any one of claims 1 to 6,
The second acquisition unit acquires authentication results for a plurality of the information terminals,
The determination unit
An authentication result indicating that the authentication of the electronic key is established for the second vehicle control command of the vehicle control commands requested to be executed is acquired by the first acquisition unit, and the first information terminal and A case where it is determined that execution is possible when an authentication result indicating that authentication of at least one of the second information terminals is established is acquired by the second acquisition unit;
An authentication result indicating that the authentication of the electronic key has been established for the third vehicle control command of the vehicle control commands requested to be executed is acquired by the first acquisition unit, and the first information terminal A case where it is determined that execution is possible only when an authentication result indicating that authentication is established is acquired by the second acquisition unit;
A vehicle control device. The vehicle control device according to any one of claims 1 to 7,
The second acquisition unit acquires authentication results for the plurality of information terminals (3, 4),
The determination unit acquires an authentication result indicating that the authentication of the electronic key has been established for the fourth vehicle control command among the vehicle control commands requested to be executed, and a plurality of determination results are obtained. A vehicle control device that determines that execution is possible when an authentication result indicating that authentication of the information terminal has been acquired by the second acquisition unit. The vehicle control device according to any one of claims 1 to 8,
The said determination part is a vehicle control apparatus which performs the said determination, when execution of the said vehicle control command is requested | required in connection with the operation of the predetermined operation part provided in the said vehicle. The vehicle control device according to any one of claims 1 to 9, wherein
The determination unit is requested to execute the vehicle control command when a signal transmitted from the electronic key is received by the communication unit when a predetermined switch provided on the electronic key is pressed. A vehicle control device that makes the above determination when it occurs. An electronic key (6) used as a key for the vehicle (5) and performing wireless communication with the in-vehicle device (51) mounted on the vehicle,
A communication unit (21, 61) for transmitting / receiving a radio signal to / from a device outside the electronic key;
An authentication unit (S22) that receives the authentication code of the information terminal transmitted from one or a plurality of information terminals (3) capable of wireless communication via the communication unit, and authenticates the information terminal;
A transmission unit (S23) that transmits an authentication result of the authentication unit and an authentication code of the electronic key to the in-vehicle device via the communication unit;
With electronic key. An electronic key used as a vehicle key for wireless communication with an in-vehicle device mounted on the vehicle,
A communication unit that transmits and receives radio signals to and from a device outside the electronic key;
An authentication unit that receives an authentication code of the information terminal transmitted from an information terminal capable of wireless communication via the communication unit, and authenticates the information terminal;
An authentication code transmitting unit that transmits the authentication code of the electronic key to the in-vehicle device via the communication unit, at least on the condition that the authentication of the information terminal by the authentication unit is established;
With electronic key. An electronic key (8) used as a vehicle key for performing wireless communication with an in-vehicle device mounted on the vehicle,
A communication unit (21, 61) for transmitting / receiving a radio signal to / from a device outside the electronic key;
An authentication unit (S43) that receives the authentication code of the information terminal transmitted from one or a plurality of information terminals (3) capable of wireless communication via the communication unit, and authenticates the information terminal;
A signal transmission unit that transmits different signals to the in-vehicle device via the communication unit when authentication of at least one information terminal by the authentication unit is established and when authentication of any of the information terminals is not established (S42, S45),
With electronic key.

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