JP6290734B2 - Car sharing system - Google Patents

Description

  The present invention relates to a car sharing system in which a single vehicle is shared by a plurality of people.

  Conventionally, a car sharing system in which a single vehicle is shared by a plurality of people is well known. In the car sharing system of Patent Document 1, an authentication number for using a vehicle-specific electronic key stored in a vehicle is wirelessly distributed from a server to a mobile phone and the vehicle via a public line. The control part of a vehicle permits use of an electronic key, when collation with the authentication number delivered and the authentication number input by the user is materialized. When the use of the electronic key is permitted, the vehicle can be used. Security is ensured by verifying the authentication number.

JP 2011-154420 A

In a car sharing system such as Patent Document 1, it is necessary to provide a vehicle with a communication module for connecting to a public line.
The present invention has been made in view of such a situation, and an object thereof is to provide a car sharing system in which security is ensured and the number of parts in a vehicle is small.

  In order to solve the above-mentioned problem, the car sharing system wirelessly distributes to the mobile terminal key authentication information for switching the function of the electronic key as a vehicle key from invalid to valid based on preset reservation information. Wireless communication is performed between the server and the electronic key whose function as a vehicle key is switched from invalid to valid by wireless communication between the portable terminal having the key authentication information, and the vehicle is mounted on the occasion of establishment of the wireless communication. The gist of the invention is that it includes an in-vehicle device that executes or permits the operation of the device.

  According to this system, the user can use the vehicle-mounted device for the first time by switching the function of the electronic key as the vehicle key from invalid to valid using the portable terminal to which the key authentication information is distributed. For this reason, security is ensured. On the other hand, since it is not necessary to provide a device for wireless communication with the server in the vehicle, this system has an effect that the number of parts in the vehicle is small.

  In the car sharing system, the electronic key is stored in a key box that can be taken out by wireless communication with a portable terminal having storage information distributed wirelessly from the server based on the reservation information. It is preferable.

According to this system, since it is necessary to perform wireless communication between the portable terminal having the storage information and the key box in order to use the vehicle, further security is ensured.
In the car sharing system, the in-vehicle device performs wireless communication with a mobile terminal having door lock information distributed wirelessly from the server based on the reservation information, thereby locking and unlocking the vehicle door. Preferably, the key box is provided in the vehicle.

  According to this system, since the key box is provided in the vehicle, it is more convenient than the case where the key box is provided elsewhere. Further, since the door lock information and the storage information are necessary to use the electronic key, the security is further ensured.

  In the car sharing system, the electronic key is wirelessly communicated with the portable terminal that has acquired the key authentication information, so that the function as a vehicle key is switched from valid to invalid, and the key authentication used for the switching is used. When the function of the vehicle key as a vehicle key is switched from valid to invalid, the function as the vehicle key cannot be switched from invalid to valid again by the information. It is preferable that the server wirelessly transmits the key authentication information when the function of the electronic key as a vehicle key is invalid.

  According to this system, key authentication information is not wirelessly distributed from the server unless the function of the electronic key as a vehicle key is in an invalid state. Also, once the function of the electronic key as the vehicle key is switched from valid to invalid, the function as the vehicle key cannot be switched again from invalid to valid using the key authentication information used for switching. As a result, there cannot be a plurality of portable terminals that can switch the function of the electronic key as a vehicle key, and thus security is further ensured.

  In the car sharing system, when the function of the electronic key as a vehicle key cannot be switched from valid to invalid even if the reserved time of the vehicle is exceeded, information indicating that is passed through the notification unit. It is preferable to notify.

  According to this system, the user can recognize that the reservation time has passed through the notification from the notification unit.

The car sharing system of the present invention is effective in that security is ensured and the number of parts in the vehicle is small.

The block diagram which shows schematic structure of a car share system.

Hereinafter, an embodiment of a car sharing system will be described with reference to the drawings.
As shown in FIG. 1, the car sharing system 1 includes a server 2, a vehicle 10, an electronic key 20, and a smartphone 30.

  The server 2 can be connected to a public line (for example, an Internet communication network). The server 2 performs wireless communication with a communication device (here, the smartphone 30) that is also connected to the public line.

  The server 2 stores the key ID of the vehicle 10. The server 2 wirelessly distributes the key ID of the vehicle 10 to the smartphone 30 via a public line based on reservation information such as a time (reservation time) scheduled to use the vehicle 10 set in advance. Note that the server 2 recognizes that the vehicle 10 has been returned by receiving a return processing signal described later. Further, if the return process of the vehicle 10 is not performed even after the reservation time has passed, the server 2 generates a reservation time overload signal including information indicating that and wirelessly transmits this to the smartphone 30. The key ID corresponds to key authentication information, storage information, and door lock information.

  The smartphone 30 has various configurations including a smartphone control unit 31, an NFC communication unit 32, a touch panel display 33, and a public line communication unit 34. Each of these various configurations is electrically connected to the smartphone control unit 31 and is comprehensively controlled by the smartphone control unit 31. The smartphone 30 corresponds to a mobile terminal.

  The NFC communication unit 32 converts an electrical signal into an NFC signal (wireless signal), converts an NFC signal wirelessly transmitted from another NFC communication unit into an electrical signal, and communicates with other NFC communication units. NFC communication.

  The touch panel display 33 converts the information indicating the touch position into an electrical signal and displays an image based on the signal generated by the smartphone control unit 31. The touch panel display 33 corresponds to the notification unit.

  The public line communication unit 34 can be connected to a public line. The public line communication unit 34 performs wireless communication with a communication device (here, the server 2) that is also connected to the public line. That is, the public line communication unit 34 can receive the key ID of the vehicle 10 from the server 2.

  The smartphone control unit 31 includes a memory 31 a that stores the key ID received via the public line communication unit 34. The smartphone control unit 31 performs NFC communication using the key ID through the NFC communication unit 32. The smartphone control unit 31 receives information indicating that an electronic key control unit 21 described later is in a disallowed state, information indicating that a key box 44 described later is in a storage state, and a vehicle door described later is in a locked state through NFC communication. When the information indicating that it has become registered, the return processing signal including the information indicating that the return processing of the vehicle 10 is completed is generated. The return processing signal is wirelessly transmitted to the server 2 through the public line. After generating the return processing signal, the smartphone control unit 31 deletes the key ID stored in the memory 31a.

  In addition, the smartphone control unit 31 receives a reserved time passing signal from the server 2 when the vehicle 10 is not returned even if the reserved time is passed. When the smartphone control unit 31 receives the reserved time overload signal, the smartphone control unit 31 displays information indicating that on the touch panel display 33.

The vehicle 10 includes various configurations including a car share communication unit 40, an electronic key communication unit 50, and a body control unit 60.
The car share communication unit 40 includes a car share ECU 41, an out-of-vehicle NFC communication unit 42, an in-vehicle NFC communication unit 43, and a key box 44. Each of these components is electrically connected to the car share ECU 41 and is generally controlled by the car share ECU 41.

  The NFC communication unit 42 outside the vehicle is provided on the outer surface of the vehicle door, for example, and converts an electrical signal into an NFC signal (wireless signal) or converts an NFC signal wirelessly transmitted from another NFC communication unit into an electrical signal. In other words, NFC communication is performed with other NFC communication units.

  The in-vehicle NFC communication unit 43 is provided, for example, in a center console or dashboard, and converts an electrical signal into an NFC signal (wireless signal) or converts an NFC signal wirelessly transmitted from another NFC communication unit into an electrical signal. Thus, NFC communication is performed with other NFC communication units.

  The key box 44 is switched between locked and unlocked by the car share ECU 41 and stores the electronic key 20. When the key box 44 is unlocked, the electronic key 20 can be taken out and deposited.

The car share ECU 41 is connected to other ECUs by a bus 5. The key ID is stored in the memory 41a of the car share ECU 41.
The car share ECU 41 collates the key ID received through the off-vehicle NFC communication unit 42 with the key ID stored in the memory 41a. If the collation is established, the car share ECU 41 generates an off-vehicle NFC collation establishment signal indicating that effect. This is output to the bus 5.

  Further, the car share ECU 41 collates the key ID received through the NFC communication unit 42 outside the vehicle with the key ID stored in the memory 41a, and locks and unlocks the key box 44 when the collation is established. Switch between.

  In addition, when the key box 44 is switched from a state in which the key box 44 can take out and deposit the electronic key 20 through NFC communication to a storage state in which these are disabled, the car share ECU 41 also transmits information indicating that to the smartphone control unit through the NFC communication. 31.

  In addition, when the vehicle door is switched from the unlocked state to the locked state through NFC communication, the car share ECU 41 similarly registers information indicating that in the smartphone control unit 31 through NFC communication.

  The electronic key communication unit 50 includes an electronic key ECU 51, an LF transmission unit 52, and a UHF reception unit 53. Each of these components is electrically connected to the electronic key ECU 51 and is generally controlled by the electronic key ECU 51.

The LF transmission unit 52 converts the electrical signal into a radio signal in the LF (Low Frequency) band and transmits it to a predetermined area.
The UHF receiving unit 53 converts the received UHF (Ultra High Frequency) band radio signal into an electrical signal, and outputs the electrical signal to the electronic key ECU 51.

  The electronic key ECU 51 periodically generates a request signal including request information of the response signal, and wirelessly transmits the request signal through the LF transmission unit 52. The electronic key ECU 51 collates various information such as an ID code included in the request signal received by the UHF receiving unit 53. If the collation is established, the electronic key ECU 51 includes information indicating that fact. The electronic key collation establishment signal is generated and output to the bus 5. The electronic key ECU 51 corresponds to an in-vehicle device.

  The body control unit 60 includes a body ECU 61, a door handle sensor 62, and a door lock device 63. Each of these components is electrically connected to the body ECU 61 and is comprehensively controlled by the body ECU 61.

The door handle sensor 62 detects contact with the door handle.
The door lock device 63 switches between locking and unlocking the door lock.
When the body ECU 61 recognizes the contact with the door handle through the door handle sensor 62 in the state where the electronic key collation establishment signal is recognized through the bus 5, the body ECU 61 switches the vehicle door between locking and unlocking through the door lock device 63. When the body ECU 61 recognizes the vehicle NFC verification establishment signal through the bus 5, the body ECU 61 switches the vehicle door between locked and unlocked through the door lock device 63.

  The electronic key 20 includes an electronic key control unit 21, an LF reception unit 22, a UHF transmission unit 23, and an NFC communication unit 24. Each of these components is electrically connected to the electronic key control unit 21 and controlled in an integrated manner by the electronic key control unit 21.

The LF receiver 22 converts the received LF-band radio signal into an electrical signal and outputs it to the electronic key controller 21.
The UHF transmission unit 23 converts the electrical signal into a UHF band radio signal and transmits it to a predetermined area.

  The NFC communication unit 24 converts an electrical signal into an NFC signal (wireless signal), converts an NFC signal wirelessly transmitted from another NFC communication unit into an electrical signal, and communicates with other NFC communication units. NFC communication.

  The key ID is stored in the memory 21 a of the electronic key control unit 21. The electronic key control unit 21 collates the key ID received through the NFC communication unit 24 with the key ID stored in the memory 21a. The electronic key control unit 21 establishes a key ID collation between the permitted state where the generation of the response signal as a response to the request signal is permitted and the non-permitted state where the generation of the response signal is disabled. Switch.

  When the electronic key control unit 21 is in the permitted state and receives a request signal through the LF reception unit 22, it generates a response signal as a response to the request signal, and wirelessly transmits this response signal through the UHF transmission unit 23.

  In addition, when the electronic key control unit 21 is switched from the permitted state to the non-permitted state through NFC communication, information indicating that the electronic key control unit 21 has been switched to the non-permitted state is also registered in the smartphone control unit 31 through NFC communication. To do.

Note that once the electronic key control unit 21 switches from the permitted state to the non-permitted state, it is impossible to switch from the non-permitted state to the permitted state again using the same key ID.
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Next, the operation of the car sharing system 1 will be described.

  First, the user accesses the server 2 from a terminal that can use a public line such as a personal computer, and uses the various functions of the vehicle 10 after the reservation information such as the scheduled time (reservation time) for using the vehicle 10 is registered in advance. I will explain what I can do. It is assumed that the reservation information is registered in the server 2 without any problem. Further, it is assumed that the vehicle door is in a locked state. Further, it is assumed that the electronic key 20 is in a non-permitted state and is stored in the key box 44 (locked state).

When the reservation time comes, the server 2 wirelessly distributes the key ID to the smartphone 30 through the public line.
When receiving the key ID, the smartphone control unit 31 stores the key ID in the memory 31a. When the smartphone 30 that has received the key ID is brought closer to the NFC communication unit 42 outside the vehicle by the user, NFC communication is performed between them. When verification of the key ID in the car share ECU 41 is established, the vehicle door is switched from locked to unlocked. Thereby, the user can get into the vehicle 10.

  Thereafter, when the smartphone 30 is brought close to the in-vehicle NFC communication unit 43 by the user, NFC communication is performed between them. When the key ID collation is established in the car share ECU 41, the key box 44 is switched from locked to unlocked. Thereby, the user can take out the electronic key 20 from the key box 44.

  Thereafter, when the smartphone 30 is brought close to the electronic key 20 by the user, NFC communication is performed between them. When the verification of the key ID in the electronic key control unit 21 is established, the electronic key control unit 21 switches from the non-permission state to the permission state. Accordingly, the user can use various functions of the vehicle 10 such as switching between locking and unlocking the vehicle door using the electronic key 20 and starting the engine. That is, when the electronic key control unit 21 is in the permitted state, the electronic key 20 is in a state where the function as the vehicle key of the vehicle 10 can be exhibited.

Next, the return process of the vehicle 10 will be described.
When the smartphone 30 is brought close to the electronic key 20 by the user, NFC communication is performed between them. When the verification of the key ID in the electronic key control unit 21 is established, the electronic key control unit 21 switches from the permitted state to the non-permitted state. In addition, information indicating that the electronic key control unit 21 has been disabled is registered in the smartphone control unit 31. The user deposits the electronic key 20 that has been disabled in the key box 44.

Note that once the electronic key control unit 21 switches from the permitted state to the non-permitted state, it is impossible to switch from the non-permitted state to the permitted state again using the same key ID.
Thereafter, when the smartphone 30 is brought close to the in-vehicle NFC communication unit 43 by the user, NFC communication is performed between them. When the key ID collation is established in the car share ECU 41, the key box 44 is switched from unlock to lock. Further, information indicating that the key box 44 is in the storage state is registered in the smartphone control unit 31.

  Thereafter, when the smartphone 30 is brought close to the NFC communication unit 42 outside the vehicle by the user, NFC communication is performed between them. When the verification of the key ID in the car share ECU 41 is established, the vehicle door is switched from unlock to lock. In addition, information indicating that the vehicle door is locked is registered in the smartphone control unit 31.

  The smart phone control unit 31 registers information indicating that the electronic key control unit 21 is in a disallowed state, information indicating that the key box 44 is in a storage state, and information indicating that the vehicle door is in a locked state. When the return processing of the vehicle 10 is completed, a return processing signal including information indicating that is generated and wirelessly transmitted to the server 2 through the public line.

When the server 2 confirms that the vehicle 10 has been returned, the key ID can be wirelessly distributed to the mobile terminal of the next reservation person.
Next, a case where the vehicle 10 is not returned will be described.

  The server 2 determines that the vehicle 10 has been returned through reception of the return processing signal. If the vehicle 10 is not returned even if the reservation time has passed, the server 2 generates a reservation time pass signal and wirelessly transmits it to the smartphone 30 through the public line.

When the smartphone control unit 31 receives the reserved time overload signal, the smartphone control unit 31 displays information indicating that on the touch panel display 33.
As described above in detail, according to the present embodiment, the following effects can be obtained.

  (1) The server 2 wirelessly distributes to the smartphone 30 a key ID for switching the electronic key control unit 21 from the non-permitted state to the permitted state based on preset reservation information. The electronic key control unit 21 is switched from the non-permitted state to the permitted state by bringing the smartphone 30 that has received the key ID closer to the electronic key 20 and performing NFC communication. Thereby, the electronic key 20 will be in the state which can exhibit the function as a vehicle key of the vehicle 10. FIG. Thus, the user can use various in-vehicle devices only after the electronic key 20 is in the permitted state. For this reason, security is ensured. On the other hand, since it is not necessary to provide a device that wirelessly communicates with the server 2 in the vehicle 10, this system has an effect that the number of parts in the vehicle is small.

  (2) The electronic key 20 is in a state in which the electronic key 20 can be taken out or deposited by performing NFC communication between the smartphone 30 that has acquired the key ID and the in-vehicle NFC communication unit 43, and a storage state in which the electronic key 20 is disabled. And stored in a key box 44 that can be switched between. Thereby, in order to use the electronic key 20, since NFC communication is needed between the smart phone 30 which acquired key ID, and the in-vehicle NFC communication part 43, security is ensured more.

  (3) The vehicle door can be switched from the locked state to the unlocked state by performing NFC communication between the smartphone 30 that has acquired the key ID and the NFC communication unit 42 outside the vehicle. Thereby, in order to use the electronic key 20, the user needs to make the NFC communication with the three configurations of the outside NFC communication unit 42, the in-vehicle NFC communication unit 43, and the electronic key 20 on the smartphone 30 that has acquired the key ID. Therefore, security is ensured.

(4) Moreover, since the key box 44 is provided in the vehicle 10, it is more convenient than the case where it is provided in another place.
(5) The smartphone control unit 31 includes information indicating that the electronic key control unit 21 has been disabled, information indicating that the key box 44 has been stored, and information indicating that the vehicle door has been locked. When registered, it is assumed that the return processing of the vehicle 10 has been completed, a return processing signal including information indicating that is generated, and this is wirelessly transmitted to the server 2 through the public line. When the server 2 confirms that the vehicle 10 has been returned, the key ID can be wirelessly distributed to the mobile terminal of the next reservation person. Note that once the electronic key control unit 21 switches from the permitted state to the non-permitted state, it is impossible to switch from the non-permitted state to the permitted state again using the same key ID. As a result, a plurality of smartphones 30 (portable terminals) that can switch the electronic key 20 from the non-permitted state to the permitted state cannot exist, and thus security is further ensured.

  (6) If the vehicle 10 is not returned after the reservation time has passed, the server 2 generates a reservation time passing signal and wirelessly transmits it to the smartphone 30 through the public line. And the smart phone control part 31 was made to display the information which shows that on the touchscreen display 33, if a reservation time passing signal is received. As a result, the user can recognize that the reservation time has passed through visual recognition of the display on the touch panel display 33.

In addition, you may change the said embodiment as follows.
In the above embodiment , when the reservation time has passed, the smart phone control unit 31 may notify information indicating that the reservation time has passed through the touch panel display 33 itself. Even if comprised in this way, the effect similar to the effect of the said embodiment can be acquired. In this case, the server 2 does not have to generate a reservation time overload signal.

  In the above embodiment, once the electronic key control unit 21 switches from the permitted state to the non-permitted state, it is impossible to switch from the non-permitted state to the permitted state again using the same key ID. Switching may be permitted.

  In the above embodiment, the key box 44 is not necessarily provided in the vehicle 10 and may be provided separately from the vehicle 10. For example, you may make it store in the management room of an apartment house. In this case, the in-vehicle NFC communication unit 43 may be omitted from the vehicle, or an NFC communication unit corresponding to the in-vehicle NFC communication unit 43 may be provided in the key box 44. In this case, the NFC communication unit 42 outside the vehicle may be omitted.

In the above embodiment, the in-vehicle NFC communication unit 43 may be omitted.
In the above embodiment, the smartphone control unit 31 acquires one key ID distributed by the server 2. And this smart phone control part 31 carries out NFC communication between the outside NFC communication part 42, the in-vehicle NFC communication part 43, and the electronic key 20, respectively, in the vehicle door, the key box 44, and the electronic key control part 21 Although it is possible to switch the state, the following may be possible. That is, in the above embodiment, the key ID also serves as key authentication information, storage information, and door lock information. However, the server 2 wirelessly distributes three IDs corresponding to these pieces of information to the smartphone 30. Also good. And you may make it switch each state in a vehicle door, the key box 44, and the electronic key control part 21 using these three ID. If configured in this way, more security is ensured.

-In above-mentioned embodiment, it may replace with the touch panel display 33 corresponded to an alerting | reporting part, and may employ | adopt information which appeals to a user's sense, for example, a speaker, for example.
In the above embodiment, the NFC communication is performed between the smartphone 30, the NFC communication unit 42 outside the vehicle, the NFC communication unit 43 in the vehicle 43, and the electronic key 20, but wireless communication using other communication standards may be used. Good.

  In the above embodiment, the smartphone 30 is used as the portable terminal, but instead of this, a tablet terminal, a portable music terminal, a notebook personal computer, or the like that does not have a telephone function may be used.

DESCRIPTION OF SYMBOLS 1 ... Car share system, 2 ... Server, 5 ... Bus, 10 ... Vehicle, 20 ... Electronic key, 21 ... Electronic key control part, 21a, 31a, 41a ... Memory, 22 ... LF reception part, 23 ... UHF transmission part, 24, 32, 42, 43 ... NFC communication unit, 30 ... smartphone, 31 ... smartphone control unit, 33 ... touch panel display (notification unit), 34 ... public line communication unit, 40 ... car share communication unit, 41 ... car share ECU 44 ... Key box (storage unit), 50 ... Electronic key communication unit, 51 ... Electronic key ECU, 52 ... LF transmission unit, 53 ... UHF reception unit, 60 ... Body control unit, 61 ... Body ECU, 62 ... Door handle Sensor, 63 ... Door lock device.

Claims (5)

A server that wirelessly distributes key authentication information for switching the function of the electronic key as a vehicle key from invalid to valid based on reservation information set in advance to the mobile terminal;
The wireless communication with the mobile terminal having the key authentication information performs wireless communication with the electronic key whose function as the vehicle key is switched from invalid to effective, and the operation of the in-vehicle device is triggered by the establishment of the wireless communication. Car sharing system comprising: an in-vehicle device that executes or permits A car sharing system according to claim 1,
The car sharing system in which the electronic key is stored in a key box that can be taken out by wireless communication with a portable terminal having storage information distributed wirelessly from the server based on the reservation information. A car sharing system according to claim 2,
The in-vehicle device performs switching between locking and unlocking the vehicle door by wirelessly communicating with a mobile terminal having door lock information distributed wirelessly from the server based on the reservation information, or To allow,
The key box is a car sharing system provided in the vehicle. A car sharing system according to any one of claims 1 to 3,
The electronic key is wirelessly communicated with the mobile terminal that has acquired the key authentication information, so that the function as the vehicle key is switched from valid to invalid, and the vehicle key is again used by the key authentication information used for the switching. , Which makes it impossible to switch from disabled to enabled,
When the portable terminal switches the function of the electronic key as a vehicle key from valid to invalid, it wirelessly transmits information indicating that to the server,
The server is a car sharing system that wirelessly distributes the key authentication information when the function of the electronic key as a vehicle key is invalid. A car sharing system according to claim 4,
When the server or the mobile terminal cannot switch the function of the electronic key as the vehicle key from valid to invalid even if the vehicle reservation time has passed, the information indicating the fact is notified to the mobile terminal. Car sharing system that alerts through