WO2017208481A1 - Système d'authentification de véhicule et dispositif mobile - Google Patents

Système d'authentification de véhicule et dispositif mobile Download PDF

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Publication number
WO2017208481A1
WO2017208481A1 PCT/JP2016/085674 JP2016085674W WO2017208481A1 WO 2017208481 A1 WO2017208481 A1 WO 2017208481A1 JP 2016085674 W JP2016085674 W JP 2016085674W WO 2017208481 A1 WO2017208481 A1 WO 2017208481A1
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WIPO (PCT)
Prior art keywords
sound
unit
vehicle
request signal
verification
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Application number
PCT/JP2016/085674
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English (en)
Japanese (ja)
Inventor
齋藤　隆
哲也 楠本
坂本　浩二
Original Assignee
株式会社デンソー
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Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2017208481A1 publication Critical patent/WO2017208481A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor

Definitions

  • the present disclosure relates to a vehicle authentication system that performs authentication using wireless communication between an in-vehicle device and a portable device carried by a user, and a portable device included in the vehicle authentication system.
  • Patent Document 1 when a polling signal is received from the vehicle without the unlock switch of the portable device being pressed, a technique for increasing the RF signal transmitted from the portable device to a high attenuation factor is disclosed. Is disclosed. According to the technique disclosed in Patent Document 1, when a relay attack is received, the unlock switch of the portable device is not pressed, and the RF signal transmitted from the portable device has a high attenuation factor. Therefore, relay attack can be prevented if the portable device is separated from the vehicle to the extent that an RF signal with a high attenuation rate does not reach.
  • An object of the present disclosure is to provide an authentication system for a vehicle and a portable device that enable a user to recognize that unauthorized authentication using wireless communication has been performed on the vehicle regardless of the distance between the portable device and the vehicle. Is to provide.
  • An authentication system for a vehicle is used in a vehicle, and includes an in-vehicle device that includes a transmission processing unit that transmits a request signal for requesting code verification through wireless communication, and is carried by a user to the request signal. And a portable device including a reply unit that transmits a response signal including an identification code for identifying the device itself.
  • the in-vehicle device includes a permission unit that permits control of the vehicle based on the fact that code verification using the identification code included in the response signal transmitted from the reply unit is established.
  • the in-vehicle device further includes a sound output processing unit that outputs a predetermined sound from a sound output device that outputs a predetermined sound in the audible range when the request signal is transmitted by the transmission processing unit.
  • the portable device further includes a sound collecting unit that collects sound and a portable side sound collating unit that collates the sound collected by the sound collecting unit with a regular predetermined sound. Even when the reply unit receives the request signal, the reply unit does not transmit the response signal including the identification code if the portable side sound collating unit fails to collate.
  • the portable device permits control of the vehicle based on the establishment of code verification using wireless communication between the in-vehicle device used in the vehicle and the portable device carried by the user.
  • the portable device includes a receiving unit that receives a request signal transmitted from an in-vehicle device that outputs a predetermined sound in an audible range when transmitting a request signal that requests code verification, and a reply unit that transmits a response signal to the request signal.
  • a sound collecting unit that collects sound
  • a portable side sound collating unit that collates the sound collected by the portable side sound collecting unit with a regular predetermined sound.
  • the reply unit transmits a response signal including an identification code for identifying its own device, which is used for code collation, even when the request signal is received, but collation is not established in the portable sound collation unit do not do.
  • the code verification in the in-vehicle device is performed. Is not established, and control of the vehicle is not permitted.
  • a malicious third party attempts unauthorized authentication using wireless communication such as a relay attack
  • the same audible range as the regular predetermined sound within the range that can be collected by the mobile-side sound collection unit It is necessary to output sound in a pseudo manner.
  • a sound in such an audible range is pseudo-output within a range where sound can be collected by the portable sound collecting unit, the user of the portable device can notice this sound.
  • an unauthorized authentication using wireless communication is performed on the own vehicle user based on the fact that the user of the portable device can hear the predetermined sound in the audible range even though the user is not close to the own vehicle. It becomes possible to recognize that. As a result, regardless of the distance between the portable device and the vehicle, the user can recognize that unauthorized authentication using wireless communication has been performed on the vehicle.
  • An authentication system for a vehicle is used in a vehicle, and includes an in-vehicle device that includes a transmission processing unit that transmits a request signal for requesting code verification by wireless communication, and is carried by a user to the request signal. And a portable device including a reply unit that transmits a response signal including an identification code for identifying the device itself.
  • the in-vehicle device further includes a permission unit that permits the control of the vehicle based on the fact that the code verification using the identification code included in the response signal transmitted from the reply unit is established.
  • the portable device further includes a sound output unit that outputs a predetermined sound in the audible range when the response unit transmits a response signal.
  • a portable device permits vehicle control based on the fact that code verification using wireless communication is established between an in-vehicle device used in the vehicle and a portable device carried by the user. Used for vehicle authentication systems.
  • the portable device transmits a response signal by a receiving unit that receives a request signal transmitted from an in-vehicle device that transmits a request signal that requests code verification, a reply unit that transmits a response signal to the request signal, and a reply unit And a sound output unit for outputting a predetermined sound in the audible range.
  • the portable device when the portable device transmits a response signal to the request signal, it outputs a predetermined sound in the audible range, so the user of the portable device is close to the own vehicle. It is possible to recognize that unauthorized authentication using wireless communication has been performed on the vehicle based on the fact that the predetermined sound in the audible range can be heard in spite of the absence. As a result, regardless of the distance between the portable device and the vehicle, the user can recognize that unauthorized authentication using wireless communication has been performed on the vehicle.
  • FIG. 1 is a diagram illustrating an example of a schematic configuration of a vehicle authentication system according to the first embodiment.
  • FIG. 2 is a diagram illustrating an example of a schematic configuration of the vehicle-side unit.
  • FIG. 3 is a diagram illustrating an example of a schematic configuration of the verification ECU.
  • FIG. 4 is a diagram illustrating an example of a schematic configuration of a portable device.
  • FIG. 5 is a diagram illustrating an example of a schematic configuration of the portable control unit.
  • FIG. 6 is a flowchart illustrating an example of the flow of the smart-related process when boarding in the verification ECU.
  • FIG. 1 is a diagram illustrating an example of a schematic configuration of a vehicle authentication system according to the first embodiment.
  • FIG. 2 is a diagram illustrating an example of a schematic configuration of the vehicle-side unit.
  • FIG. 3 is a diagram illustrating an example of a schematic configuration of the verification ECU.
  • FIG. 4 is a diagram illustrating an example of a schematic
  • FIG. 7 is a flowchart illustrating an example of the flow of mobile-side smart-related processing in the mobile-side control unit.
  • FIG. 8 is a diagram illustrating an example of a schematic configuration of a portable device.
  • FIG. 9 is a diagram illustrating an example of a schematic configuration of the portable control unit.
  • FIG. 10 is a diagram illustrating an example of a schematic configuration of the vehicle-side unit.
  • FIG. 11 is a diagram illustrating an example of a schematic configuration of the verification ECU.
  • FIG. 12 is a flowchart illustrating an example of a flow of mobile-side smart-related processing in the mobile-side control unit.
  • FIG. 13 is a flowchart illustrating an example of the flow of the smart-related process when boarding in the verification ECU.
  • the vehicular authentication system 3 includes a vehicle-side unit 1 used in a vehicle and a portable device 2 as an electronic key carried by the user.
  • the vehicle authentication system 3 has a so-called smart function.
  • the smart function performs code verification by short-range wireless communication between the vehicle-side unit 1 and the portable device 2, and permits the locking and unlocking of the vehicle door and the start of the driving source based on the code verification being established.
  • the travel drive source may be an engine or a travel motor, but the following description will be made with an example in which the travel drive source is an engine.
  • the vehicle-side unit 1 includes a verification ECU 11, an LF transmission unit 12, a UHF reception unit 13, door antennas 14a to 14d, an indoor antenna 15, an antenna outside the trunk 16, a speaker 17, a body ECU 18, and a power unit control ECU 19. It has.
  • the verification ECU 11 corresponds to an in-vehicle device.
  • the LF transmitting unit 12 transmits a request signal to the portable device 2 using an LF band radio wave via LF antennas such as the door antennas 14a to 14d, the indoor antenna 15, and the antenna 16 outside the trunk.
  • the LF band is a frequency band of 30 kHz to 300 kHz, for example.
  • the range in which signals can be transmitted from the LF antenna using radio waves in the LF band corresponds to the short-range wireless communication area in which short-range wireless communication is possible.
  • the request signal is a signal that requests transmission of the identification code of the portable device 2 for code verification.
  • the door antenna 14a is provided near the vehicle door of the driver seat
  • the door antenna 14b is provided near the vehicle door on the passenger seat side
  • the door antenna 14c is provided near the vehicle door on the right side of the rear seat
  • the door antenna 14d Is provided near the vehicle door on the left side of the rear seat.
  • the indoor antenna 15 is provided in the vehicle interior
  • the outside trunk antenna 16 is provided in the vicinity of the trunk room door in the vehicle door.
  • the short-distance wireless communication area of the door antenna 14a is limited to the vicinity of the vehicle door of the driver seat
  • the short-range wireless communication area of the door antenna 14b is limited to the vicinity of the vehicle door of the passenger seat side
  • the door antenna 14c is limited to the vicinity of the vehicle door on the right side of the rear seat
  • the short-range wireless communication area of the door antenna 14d is limited to the vicinity of the vehicle door on the left side of the rear seat.
  • the short-range wireless communication area of the indoor antenna 15 is limited to the vehicle interior
  • the short-range wireless communication area of the antenna 16 outside the trunk is limited to the vicinity of the trunk room door.
  • the UHF receiving unit 13 has a UHF antenna, and receives a response signal transmitted from the portable device 2 by radio waves in the UHF band using the UHF antenna.
  • the UHF band is a frequency band of 300 MHz to 3 GHz, for example.
  • the response signal is a signal returned from the portable device 2 in response to the request signal.
  • Speaker 17 outputs an audible electronic sound.
  • the speaker 17 corresponds to a sound output device.
  • the audible range can also be called an audible frequency band.
  • the frequency band of the electronic sound output from the speaker 17 may be in the range of 20 Hz to 20 kHz, and may be about 100 Hz to 10 kHz as an example.
  • the speaker 17 is arranged so that an electronic sound can be heard outside the vehicle.
  • the speaker 17 may be configured to use a so-called answerback buzzer or the like.
  • Speaker 17 outputs a preset electronic sound.
  • This electronic sound corresponds to a predetermined sound.
  • the preset electronic sound may be a single frequency beep sound or a multi-frequency chord. Further, the preset electronic sound may include a pattern of intervals (hereinafter simply referred to as a pattern) for outputting a sound.
  • the preset electronic sound may be configured for each vehicle or vehicle type, or may be common regardless of the vehicle. In the following, description will be given by taking as an example a case that is common regardless of the vehicle.
  • the speaker 17 may be configured to be able to output a plurality of types of preset electronic sounds. In the following description, it is assumed that the speaker 17 can output a plurality of types of preset electronic sounds.
  • the body ECU 18 locks and unlocks each vehicle door by outputting a drive signal for controlling the locking and unlocking of each vehicle door to a door lock motor provided in each vehicle door.
  • the body ECU 18 is connected to a touch sensor provided on the outer door handle of each vehicle door, and detects that the outer door handle of each vehicle door has been touched by the user.
  • a courtesy switch for each vehicle door is connected to the body ECU 18 to detect opening and closing of each vehicle door.
  • the power unit control ECU 19 acquires the engine start permission signal from the verification ECU 11, the power unit control ECU 19 sets the engine start standby state in which the starter motor or the like can be started.
  • the power unit control ECU 19 controls the amount of fuel supplied to the engine, the ignition timing, and the like.
  • the verification ECU 11 includes a CPU, a volatile memory, a nonvolatile memory, an I / O, and a bus for connecting them, and executes various processes by executing a control program stored in the nonvolatile memory.
  • the verification ECU 11 executes processing related to the smart function. For example, a request signal is transmitted to the LF transmitter 12 or a preset electronic sound is output from the speaker 17.
  • a request signal is transmitted to the LF transmitter 12 or a preset electronic sound is output from the speaker 17.
  • the UHF receiver 13 receives a response signal to the request signal, the UHF receiver 13 performs collation using the portable device identification code included in the response signal.
  • some or all of the functions executed by the verification ECU 11 may be configured in hardware by one or a plurality of ICs.
  • the verification ECU 11 includes an open / close determination unit 111, a registration unit 112, a transmission processing unit 113, a reception processing unit 114, a sound output processing unit 115, a code verification unit 116, a locking / unlocking permission unit 117, and a start permission. Part 118 is provided.
  • the opening / closing determination unit 111 determines opening / closing of the vehicle door from the result of the body ECU 18 detecting opening / closing of the vehicle door.
  • the registration unit 112 is, for example, an electrically rewritable non-volatile memory, and the portable device identification code of the authorized user's portable device 2 is a portable device identification code that is a code for identifying the portable device 2. It is registered.
  • the transmission processing unit 113 transmits a request signal (hereinafter referred to as a WAKE signal) for canceling the sleep state of the portable device 2 in order from the LF antennas such as the door antennas 14a to 14d and the antenna 16 outside the trunk.
  • the reception processing unit 114 receives a response signal (hereinafter referred to as a WAKE response signal) transmitted from the portable device 2 in the UHF band in response to the WAKE signal via the UHF reception unit 13.
  • the transmission processing unit 113 identifies the vehicle from the door antennas 14a to 14d, the indoor antenna 15, and the antenna 16 outside the trunk via the LF transmission unit 12.
  • a request signal (hereinafter referred to as a request signal) including a vehicle identification code which is The vehicle identification code may be the device ID of the verification ECU 11 mounted on the vehicle or the vehicle ID of the vehicle. What is necessary is just to set it as the structure which reads and uses what was stored in the non-volatile memory of collation ECU11 for vehicle identification code.
  • the transmission processing unit 113 may be configured to transmit the request signal from the LF antenna that has received the WAKE response signal by the reception processing unit 114 when the WAKE signal is transmitted.
  • the transmission processing unit 113 starts transmission of a request signal from the indoor antenna 15 when the vehicle door is unlocked and the vehicle door is opened.
  • the reception processing unit 114 receives a response signal (hereinafter referred to as a request response signal) transmitted from the portable device 2 by radio waves in the UHF band in response to the request signal via the UHF receiving unit 13.
  • the sound output processing unit 115 also outputs a preset electronic sound from the speaker 17 when the transmission processing unit 113 transmits a request signal.
  • a configuration may be adopted in which a preset electronic sound is output from the speaker 17 at substantially the same timing as when the request signal is transmitted by the transmission processing unit 113.
  • the sound output processing unit 115 may be configured to output a preset electronic sound from the speaker 17 indirectly, for example, via the body ECU 18.
  • the sound output processing unit 115 selects an electronic sound to be output from a plurality of types of preset electronic sounds, and causes the speaker 17 to output a preset electronic sound.
  • a plurality of types of preset electronic sounds are classified according to the type of vehicle control that is permitted by the smart function.
  • an electronic sound (hereinafter referred to as locking / unlocking authentication sound) used during processing for permitting locking / unlocking and an electronic sound (hereinafter referred to as engine starting) used during processing for permitting engine starting are used.
  • the authentication sound is prepared as a different electronic sound.
  • a locking / unlocking authentication sound is output from the speaker 17 during the process for permitting the locking / unlocking
  • an engine starting authentication sound is output from the speaker 17 during the process for permitting the engine starting.
  • the verification ECU 11 starts the process for permitting the engine start after the process for permitting the locking / unlocking is completed.
  • the sound output processing unit 115 may be configured to switch between the output of the locking / unlocking authentication sound and the output of the engine start authentication sound, for example, by monitoring the processing in the verification ECU 11.
  • the code verification unit 116 performs code verification to check whether the portable device 2 that is the transmission source of the request response signal received by the reception processing unit 114 is the authorized user's portable device 2.
  • the code verification is performed between the portable device identification code included in the request response signal received from the portable device 2 and the portable device identification code registered in the registration unit 112.
  • the code verification unit 116 sends the verification result to the locking / unlocking permission unit 117 during the process for permitting the locking / unlocking, and sends the verification result to the start permission unit 118 during the process for permitting the engine start. It may be configured to send.
  • the locking / unlocking permission unit 117 sends a signal permitting the locking / unlocking of each vehicle door to the body ECU 18 when the verification result indicating that the code verification is established is obtained from the code verification unit 116.
  • the body ECU 18 starts energization to the touch sensor provided on the outer door handle of each vehicle door, and enters a standby state in which the user can detect the door handle operation.
  • the body ECU 18 detects that the user has touched the touch sensor, the body ECU 18 outputs a drive signal to the door lock motor to lock and unlock each vehicle door.
  • the start permission unit 118 sends an engine start permission signal to the power unit control ECU 19 when the collation result indicating that the code collation is established is obtained from the code collation unit 116.
  • the power unit control ECU 19 that has acquired the engine start permission signal puts the engine into an engine start standby state as described above.
  • the portable device 2 includes a portable side control unit 21, an LF reception unit 22, a UHF transmission unit 23, a microphone 24, a power switch 25, and a communication switch 26.
  • the portable device 2 is in a sleep state in which power consumption is significantly less than that in the wake-up state until the LF reception unit 22 receives a WAKE signal.
  • the LF reception unit 22 receives a signal, It shall be in a wake-up state.
  • the LF receiving unit 22 receives a request signal transmitted from the vehicle-side unit 1 by LF band radio waves via the LF antenna.
  • the LF receiver 22 corresponds to a receiver.
  • the UHF transmission unit 23 transmits the signal output from the portable side control unit 21 on the UHF band radio wave from the UHF antenna.
  • the UHF transmission unit 23 corresponds to a reply unit.
  • the microphone 24 collects sound, converts the collected sound into an electric signal, and inputs the electric signal to the portable control unit 21.
  • the microphone 24 corresponds to a sound collection unit.
  • the microphone 24 collects the electronic sound when the portable device 2 is located in a range where the electronic sound output from the speaker 17 of the vehicle-side unit 1 can be collected.
  • the power switch 25 is a switch for turning on / off the power of the portable device 2 in accordance with a user operation input.
  • the communication switch 26 is a switch that turns on and off the communication function of the portable device 2 in accordance with a user operation input.
  • the mobile-side control unit 21 includes a CPU, a volatile memory, a nonvolatile memory, an I / O, and a bus for connecting them, and executes various processes by executing a control program stored in the nonvolatile memory.
  • the portable side control unit 21 executes processing related to the smart function. For example, verification using a vehicle identification code included in the request signal received by the LF reception unit 22 is performed, or verification using sound collected by the microphone 24 is performed. Further, a request response signal including a portable device identification code is transmitted from the UHF transmission unit 23 in accordance with the result of these verifications. Note that some or all of the functions executed by the portable control unit 21 may be configured in hardware by one or a plurality of ICs.
  • the portable side control unit 21 includes a registration unit 211, a reception processing unit 212, a code verification unit 213, a sound verification unit 214, and a transmission processing unit 215.
  • the registration unit 211 is, for example, an electrically rewritable nonvolatile memory, in which a vehicle identification code for a legitimate user's vehicle is registered.
  • an electronic sound about a regular vehicle is registered in the registration unit 211. In this embodiment, it is assumed that the locking / unlocking authentication sound and the engine start authentication sound are registered in the registration unit 211.
  • the reception processing unit 212 acquires the request signal received by the LF receiving unit 22.
  • the code verification unit 213 performs verification (hereinafter referred to as code verification) between the vehicle identification code included in the request signal acquired by the reception processing unit 212 and the vehicle identification code registered in the registration unit 211.
  • the sound collation unit 214 acquires the sound collected by the microphone 24 and collates the acquired sound with a regular electronic sound registered in the registration unit 211.
  • This sound matching unit 214 corresponds to a mobile phone side sound matching unit.
  • the configuration may be such that the locking / unlocking authentication sound and the engine start authentication sound registered in the registration unit 211 are collated.
  • the sound collation may be performed, for example, depending on whether or not the waveforms of the electrical signals converted from the sound match.
  • the frequency of the sound matches, whether the sound pattern matches, whether the feature points of the waveform of the electric signal converted from the sound match, or the like. It should be noted that processing such as removing noise from the sound collected by the microphone 24 may be performed before collation.
  • the transmission processing unit 215 causes the UHF transmission unit 23 to transmit a response signal including the portable device identification code when the code verification unit 213 establishes code verification and the sound verification unit 214 establishes sound verification.
  • the sound collation unit 214 if the collation is established with any of the lock / unlock authentication sound and the engine start authentication sound registered in the registration unit 211, the sound collation may be established.
  • the UHF transmission unit 23 does not transmit a response signal including the portable device identification code.
  • the portable device 2 even when the portable device 2 receives the request signal, if the collation is not established by the sound collation unit 214, the portable device 2 does not transmit the request response signal including the portable device identification code.
  • the flowchart in FIG. 6 may be configured to be started when the reception processing unit 114 receives a WAKE response signal for a WAKE request signal, for example.
  • the transmission processing unit 113 transmits a WAKE signal via the LF transmission unit 12, and the reception processing unit 114 can receive the WAKE response signal from the LF antenna. Send a request signal to the area.
  • the sound output processing unit 115 causes the speaker 17 to output a preset locking / unlocking authentication sound at substantially the same timing as the transmission processing unit 113 transmits the request signal.
  • the code verification unit 116 performs code verification between the portable device identification code included in the request response signal received in S2 and the portable device identification code registered in the registration unit 112. If the code verification is established (YES in S3), the process proceeds to S4. On the other hand, if the code verification is not established (NO in S3), the boarding smart-related process is terminated.
  • the unlocking / permitting permission unit 117 sends a signal permitting the unlocking of each vehicle door to the body ECU 18, and permits the unlocking of the vehicle door.
  • the body ECU 18 detects that the user has touched the touch sensor provided on the outer door handle in a state where the unlocking of the vehicle door is permitted, the body ECU 18 drives the door lock motor to unlock each vehicle door. I do.
  • the opening / closing determination unit 111 determines opening / closing of the vehicle door. And when it determines with opening and closing of the vehicle door having been performed within a fixed time from unlocking (it is YES at S5), it moves to S6. On the other hand, if it is determined that the vehicle door has not been opened or closed within a certain time from unlocking (NO in S5), the boarding smart-related processing is terminated.
  • the transmission processing unit 113 transmits a request signal from the indoor antenna 15 to the short-range wireless communication area in the vehicle cabin via the LF transmission unit 12.
  • the sound output processing unit 115 outputs a preset engine start authentication sound from the speaker 17 at substantially the same timing as the transmission processing unit 113 transmits the request signal.
  • the code verification unit 116 performs code verification between the portable device identification code included in the request response signal received in S7 and the portable device identification code registered in the registration unit 112. If code verification is established (YES in S8), the process proceeds to S9. On the other hand, if the code verification is not established (NO in S8), the boarding smart-related process is terminated.
  • the start permission unit 118 sends an engine start permission signal to the power unit control ECU 19, permits the engine start, and terminates the smart related processing when boarding.
  • the power unit control ECU 19 starts the engine on condition that, for example, an engine switch or the like is turned on.
  • the unlocking / authentication sound is used during the processing of S1 for permitting the locking / unlocking, whereas the engine starting authentication sound is performed during the processing of S6 for permitting the engine starting. Is used.
  • the locking / unlocking permission is not performed, the locking / unlocking authentication sound is output from the speaker 17, but the engine start authentication sound is not output.
  • the flowchart in FIG. 7 may be configured to be started when, for example, the WAKE request signal is received by the LF receiving unit 22 and the portable device 2 enters the wake-up state and the WAKE response signal is transmitted from the UHF transmitting unit 23.
  • the portable side control part 21 shall start the count of a timer circuit, when a portable side smart related process is started.
  • the code verification unit 213 performs code verification between the vehicle identification code included in the request signal received in S21 and the vehicle identification code registered in the registration unit 211. If the code verification is established (YES in S24), the process proceeds to S25. On the other hand, if the code verification is not established (NO in S24), the process proceeds to S22.
  • the sound collation unit 214 performs sound collation between the sound acquired in S23 and the locking / unlocking authentication sound and engine start authentication sound registered in the registration unit 211. And when collation is realized in any one of the locking / unlocking authentication sound and the engine start authentication sound, that is, when sound collation is established (YES in S25), the process proceeds to S26. On the other hand, if neither of the locking / unlocking authentication sound and the engine start authentication sound is established, that is, if the sound matching is not established (NO in S25), the process proceeds to S22.
  • the transmission processing unit 215 causes the UHF transmission unit 23 to transmit a request response signal including the portable device identification code. Further, the portable control unit 21 resets the count of the timer circuit and starts the count again (that is, timer restart).
  • the count of the timer circuit exceeds the specified value and timed out (YES in S27)
  • the mobile-side smart related processing is terminated.
  • the timeout has not occurred (NO in S27)
  • the process proceeds to S28.
  • the electronic sound output from the vehicle-side unit 1 is not permitted to be locked or unlocked and the engine to be started unless sound collation is established in the portable device 2. Therefore, when a malicious third party attempts unauthorized authentication using wireless communication such as a relay attack, the sound of the same audible range as the normal electronic sound is collected within the range that can be collected by the microphone 24 of the portable device 2. It is necessary to make a pseudo output.
  • a process for permitting the locking / unlocking is performed prior to the process for permitting the engine start, and therefore an engine start authentication sound is output from the vehicle side unit 1. Prior to the activation, a lock / unlock authentication sound is output.
  • the code verification unit 213 performs code verification between the vehicle identification code included in the request signal received in S29 and the vehicle identification code registered in the registration unit 211. If the code verification is established (YES in S31), the process proceeds to S32. On the other hand, when the code verification is not established (NO in S31), the process returns to S27 and is repeated.
  • the sound collation unit 214 performs sound collation between the sound acquired in S30 and the locking / unlocking authentication sound and engine start authentication sound registered in the registration unit 211. If the sound collation is established (YES in S32), the process proceeds to S33. On the other hand, when collation is not materialized (it is NO at S32), it returns to S27 and repeats processing. In S33, the transmission processing unit 215 transmits a response signal including the portable device identification code from the UHF transmission unit 23, and the portable side control unit 21 restarts the timer, and returns to S27 to repeat the processing.
  • locking / unlocking and engine starting are not permitted unless sound verification is established in the portable device 2 for electronic sounds such as the locking / unlocking authentication sound and engine start authentication sound output from the vehicle-side unit 1. .
  • a malicious third party attempts unauthorized authentication using a wireless communication such as a relay attack
  • the same audible range as the normal electronic sound within a range that can be collected by the microphone 24 of the portable device 2 It is necessary to simulate the sound of.
  • the user of the portable device 2 can notice this sound.
  • the user of the portable device 2 can perform unauthorized authentication using wireless communication on his / her vehicle based on the fact that the user can hear the locking / unlocking authentication sound or the engine start authentication sound even though the user is not close to the own vehicle. It is possible to recognize what has been done to the user. Therefore, regardless of the distance between the portable device 2 and the vehicle using the vehicle-side unit 1, the user can recognize that unauthorized authentication using wireless communication has been performed on the own vehicle.
  • the unlocking / authentication sound used during the process for permitting the unlocking and the engine start authentication sound used during the process for permitting the engine start are different from each other. It is an electronic sound.
  • the user also recognizes whether unauthorized authentication using wireless communication is in the process of permitting unlocking or in the stage of permitting engine start. It becomes possible to do.
  • the process does not proceed until the engine start is permitted by rushing to the vehicle at the stage of the process for permitting the unlocking or turning off the power switch 25 or the communication switch 26 of the portable device 2. It becomes possible to.
  • the vehicle authentication system 3 of the second embodiment is the same as that of the first embodiment except that the vehicle-side unit 1a is included instead of the vehicle-side unit 1 and the point that the mobile device 2a is included instead of the portable device 2. This is the same as the vehicle authentication system 3.
  • the portable device 2a includes a portable side control unit 21a, an LF reception unit 22, a UHF transmission unit 23, a power switch 25, a communication switch 26, and a speaker 27.
  • the portable device 2a is the same as the portable device 2 of the first embodiment except that it does not include the microphone 24, includes the speaker 27, and includes the portable side control unit 21a instead of the portable side control unit 21. is there.
  • the speaker 27 outputs an audible electronic sound in the same manner as the speaker 17 of the first embodiment.
  • the speaker 27 corresponds to a sound output unit.
  • a small piezoelectric speaker may be used.
  • the speaker 27 is described as being capable of outputting a plurality of types of preset electronic sounds in the same manner as the speaker 17.
  • the portable control unit 21a will be described below.
  • the portable control unit 21a includes a registration unit 211a, a reception processing unit 212, a code verification unit 213, a transmission processing unit 215a, and a sound output processing unit 216.
  • the portable side control unit 21a is provided with a sound collating unit 214, a sound output processing unit 216, and a registration unit 211a and a transmission processing unit 215a instead of the registration unit 211 and the transmission processing unit 215. Is the same as the portable side control unit 21 of the first embodiment.
  • the registration unit 211a is, for example, an electrically rewritable nonvolatile memory, in which a vehicle identification code for a legitimate user's vehicle is registered.
  • the transmission processing unit 215a causes the UHF transmission unit 23 to transmit a response signal including the portable device identification code when the code verification unit 213 establishes code verification.
  • the sound output processing unit 216 also outputs a preset electronic sound from the speaker 27 when the transmission processing unit 215a transmits a request response signal.
  • a preset electronic sound is output from the speaker 27 at substantially the same timing as when the request response signal is transmitted by the transmission processing unit 215a.
  • the sound output processing unit 216 selects an electronic sound to be output from among a plurality of types of preset electronic sounds, and causes the speaker 27 to output a preset electronic sound.
  • a plurality of types of preset electronic sounds are classified according to the type of vehicle control permitted by the smart function. In the example of this embodiment, the unlocking / unlocking authentication sound and the engine start authentication described in the first embodiment are used. It is assumed that electronic sounds are prepared as different sounds.
  • the sound output processing unit 216 outputs a locking / unlocking authentication sound from the speaker 17 during processing for permitting locking / unlocking, and outputs an engine starting authentication sound from the speaker 17 during processing for permitting engine starting. .
  • the sound output processing unit 216 determines whether the request response signal after entering the wake-up state is the processing time for permitting locking / unlocking or the processing time for permitting engine start. It may be determined from the number of transmissions. As a specific example, if the number of transmissions of the request response signal after entering the wake-up state is 0, it is determined that the process for permitting locking / unlocking is performed, and if it is one or more times, the engine start is permitted. What is necessary is just to judge at the time of processing for performing.
  • the sound output processing unit 216 may make the above-described determination based on this information.
  • the vehicle-side unit 1a includes a verification ECU 11a, an LF transmitter 12, a UHF receiver 13, door antennas 14a to 14d, an indoor antenna 15, an antenna outside a trunk 16, a body ECU 18, a power unit control ECU 19, and a microphone 20. It has.
  • the vehicle side unit 1a is the same as the vehicle side unit 1 of the first embodiment except that the speaker 17 is not provided, the microphone 20 is provided, and the verification ECU 11a is provided instead of the verification ECU 11.
  • the verification ECU 11a corresponds to an in-vehicle device.
  • the microphone 20 collects sound, converts the collected sound into an electric signal, and inputs it to the verification ECU 11a.
  • the microphone 20 corresponds to a sound collecting device. When the microphone 20 is located in a range where the electronic sound output from the speaker 27 of the portable device 2a can be collected, the microphone 20 collects the electronic sound.
  • the verification ECU 11a will be described below.
  • the verification ECU 11a includes an open / close determination unit 111, a registration unit 112a, a transmission processing unit 113, a reception processing unit 114, a code verification unit 116, a locking / unlocking permission unit 117a, a start permission unit 118a, and a sound acquisition unit 119. And a sound collation unit 120.
  • the registration unit 112a is, for example, an electrically rewritable non-volatile memory, in which the portable device identification code of the portable device 2a of the authorized user is registered.
  • the registration unit 112 as in the registration unit 211 of the first embodiment, an electronic sound for a regular vehicle is registered. In the present embodiment, it is assumed that the locking / unlocking authentication sound and the engine start authentication sound are registered in the registration unit 112a.
  • the sound acquisition unit 119 acquires the sound collected by the microphone 20 and inputs it to the sound verification unit 120.
  • the sound collation unit 120 performs sound collation between the sound acquired by the sound acquisition unit 119 and the regular electronic sound registered in the registration unit 112a in the same manner as the sound verification unit 214 of the first embodiment.
  • This sound collation unit 120 corresponds to a vehicle side sound collation unit.
  • it is compared with the locking / unlocking authentication sound registered in the registration unit 211, and registered at the registration unit 211 at the time of processing for permitting engine start. What is necessary is just to make it the structure which collates with an engine starting authentication sound.
  • the sound collation unit 120 sends the collation result to the lock / unlock permission unit 117a during the process for permitting the locking / unlocking, and sends the collation result to the start permission unit 118a during the process for permitting the engine start. What is necessary is just composition.
  • the locking / unlocking permission unit 117a obtains a collation result indicating that the code collation is established from the code collation unit 116, and also obtains a collation result indicating that the sound collation is established from the sound collation unit 120.
  • a signal for permitting the door to be unlocked is sent to the body ECU 18.
  • the start permission unit 118a obtains a collation result indicating that the code collation is established from the code collation unit 116, and obtains a collation result indicating that the sound collation is established from the sound collation unit 120.
  • a signal is sent to the power unit control ECU 19.
  • the power unit control ECU 19 that has acquired the engine start permission signal puts the engine into an engine start standby state as described above.
  • the flowchart of FIG. 12 may be configured to be started when, for example, the WAKE request signal is received by the LF receiving unit 22 and the portable device 2 enters the wake-up state and transmits the WAKE response signal from the UHF transmitting unit 23.
  • the portable side control part 21a shall start the count of a timer circuit, when a portable side smart related process is started.
  • the code verification unit 213 performs code verification between the vehicle identification code included in the request signal received in S41 and the vehicle identification code registered in the registration unit 211a. If the code verification is established (YES in S43), the process proceeds to S44. On the other hand, if the code verification is not established (NO in S43), the process proceeds to S42.
  • the transmission processing unit 215a causes the UHF transmission unit 23 to transmit a request response signal including the portable device identification code.
  • the sound output processing unit 216 outputs a preset locking / unlocking authentication sound from the speaker 27 at substantially the same timing as the transmission processing unit 215a transmits the request response signal.
  • the portable control unit 21a resets the count of the timer circuit, and starts counting again (that is, timer restart).
  • the count of the timer circuit exceeds the specified value and timed out (YES in S45)
  • the mobile-side smart related processing is terminated.
  • the process proceeds to S46.
  • a process for permitting locking / unlocking is performed prior to a process for permitting engine start.
  • the locking / unlocking authentication sound is output prior to the output of the engine start authentication sound from the portable device 2a. Therefore, when the user of the portable device 2 hears the locking / unlocking authentication sound even though he / she is not in the vicinity of his / her own vehicle, the power switch 25 or the communication switch 26 is turned off to process the engine start permission. The mobile-side smart-related processing is terminated before the process proceeds, so that the engine is not allowed to start.
  • the transmission processing unit 215a causes the UHF transmission unit 23 to transmit a request response signal including the portable device identification code.
  • the sound output processing unit 216 outputs a preset engine start authentication sound from the speaker 27 at substantially the same timing as the transmission processing unit 215a transmits the request response signal.
  • the portable control unit 21a restarts the timer, and returns to S45 to repeat the process.
  • the flowchart in FIG. 13 may be configured to be started when the reception processing unit 114 receives a WAKE response signal for a WAKE request signal, for example.
  • the transmission processing unit 113 transmits a WAKE signal via the LF transmission unit 12
  • the reception processing unit 114 can receive the WAKE response signal from the LF antenna outside the vehicle compartment. Send a request signal to the area.
  • the code verification unit 116 performs code verification between the portable device identification code included in the request response signal received in S62 and the portable device identification code registered in the registration unit 112a. If code verification is established (YES in S64), the process proceeds to S65. On the other hand, if the code verification is not established (NO in S64), the boarding smart-related processing is terminated.
  • the sound collation unit 120 performs sound collation between the sound acquired in S63 and the locking / unlocking authentication sound registered in the registration unit 112a. And when sound collation with a locking / unlocking authentication sound is materialized (it is YES at S65), it moves to S66. On the other hand, if the sound verification with the locking / unlocking authentication sound is not established (NO in S65), the boarding smart-related processing is terminated. In S66, the locking / unlocking permission unit 117a sends a signal permitting the unlocking of each vehicle door to the body ECU 18 and permits the unlocking of the vehicle door.
  • the opening / closing determination unit 111 determines opening / closing of the vehicle door. If it is determined that the vehicle door has been opened and closed within a predetermined time from unlocking (YES in S67), the process proceeds to S68. On the other hand, if it is determined that the vehicle door has not been opened or closed within a certain time from unlocking (NO in S67), the boarding smart-related processing is terminated.
  • the transmission processing unit 113 causes the indoor antenna 15 to transmit a request signal to the short-range wireless communication area in the vehicle cabin via the LF transmission unit 12.
  • the process proceeds to S70.
  • the request response signal cannot be received by the reception processing unit 114 (NO in S69)
  • the boarding smart-related processing is terminated.
  • the processing from S70 to S71 is the same as the processing from S63 to S64.
  • the sound collation unit 120 performs sound collation between the sound acquired in S70 and the engine start authentication sound registered in the registration unit 112a. If the sound verification with the engine start authentication sound is established (YES in S72), the process proceeds to S73. On the other hand, when the sound verification with the engine start authentication sound is not established (NO in S72), the boarding smart-related process is terminated.
  • the start permission unit 118a sends an engine start permission signal to the power unit control ECU 19, permits the engine start, and ends the on-boarding smart related processing.
  • the user of the portable device 2a has performed unauthorized authentication using his / her wireless communication based on the fact that the user can hear this electronic sound even though he / she is not close to his / her vehicle. Can be recognized. Therefore, regardless of the distance between the portable device 2a and the vehicle using the vehicle-side unit 1a, the user can recognize that unauthorized authentication using wireless communication has been performed on the own vehicle.
  • the unlocking authentication sound used at the time of processing for permitting unlocking, and the engine start authentication sound used at the time of processing for permitting engine start are different electronic sounds. Therefore, as in the configuration of the first embodiment, the user can determine whether the unauthorized authentication using wireless communication is in the process of performing the unlocking permission, depending on the type of electronic sound, It becomes possible to recognize whether it is in the stage for performing.
  • the unlocking / unlocking authentication sound used during the process for permitting the unlocking and the engine starting authentication sound used during the process for permitting the engine start are respectively provided.
  • a different electronic sound is shown, the present invention is not limited to this.
  • the configuration may be such that the locking / unlocking authentication sound and the engine start authentication sound are the same electronic sound.
  • the portable devices 2 and 2a are configured to include the power switch 25 and the communication switch 26.
  • the configuration is not necessarily limited thereto.
  • the portable devices 2 and 2a may be configured to include only one of the power switch 25 and the communication switch 26, or may be configured to include neither.
  • the portable device 2 adopts a configuration in which neither the power switch 25 nor the communication switch 26 is provided a configuration in which the process of S28 is omitted in the flowchart of FIG.
  • the portable device 2a adopts a configuration in which neither the power switch 25 nor the communication switch 26 is provided, a configuration in which the process of S46 is omitted in the flowchart of FIG.
  • locking / unlocking and engine starting are shown as the types of vehicle control that is permitted by the smart function, but this is not necessarily limited thereto. For example, it is good also as a structure which makes object control of vehicles other than locking / unlocking and engine starting.
  • the portable devices 2 and 2a are electronic keys
  • the present invention is not necessarily limited thereto.
  • the portable devices 2 and 2a may be configured as a portable terminal such as a multi-function mobile phone that also functions as an electronic key.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un système d'authentification de véhicule qui comprend : un dispositif embarqué ayant une unité de traitement d'émission qui entraîne l'émission d'un signal de requête ; et un dispositif mobile ayant une unité de réponse (23) qui émet un signal de réponse en réponse au signal de requête. Le dispositif embarqué comprend en outre une unité de traitement de sortie sonore qui, lorsque l'unité de traitement d'émission entraîne l'émission du signal de requête, amène également un dispositif de sortie sonore, qui fournit en sortie un son prédéterminé dans une plage audible, à fournir en sortie le son prédéterminé. Le dispositif mobile comporte en outre : une unité de collecte de son (24) ; et une unité de vérification de son côté mobile (214) qui vérifie, sur la base d'un son normal prédéterminé, un son collecté par l'unité de collecte de son. Dans le cas où l'unité de vérification de son côté mobile ne réussit pas la vérification, même lors de la réception du signal de requête, l'unité de réponse n'émet pas un signal de réponse comprenant un code d'identification.
PCT/JP2016/085674 2016-06-01 2016-12-01 Système d'authentification de véhicule et dispositif mobile WO2017208481A1 (fr)

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JP2016110313A JP2017214792A (ja) 2016-06-01 2016-06-01 車両用認証システム及び携帯機

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CN110610562A (zh) * 2018-06-15 2019-12-24 丰田自动车株式会社 车辆用认证装置及车辆用控制系统
US10988109B2 (en) 2017-12-14 2021-04-27 Toyota Jidosha Kabushiki Kaisha Sound output apparatus, sound output control method, vehicle, and locking and unlocking system

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JP6897415B2 (ja) * 2017-08-16 2021-06-30 トヨタ自動車株式会社 車両用制御システム
JP7233285B2 (ja) * 2019-03-29 2023-03-06 株式会社Subaru 車両の認証システム

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JP2005320708A (ja) * 2004-05-06 2005-11-17 Tokai Rika Co Ltd 電子キーシステム、電子キー及び発信機

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Publication number Priority date Publication date Assignee Title
US10988109B2 (en) 2017-12-14 2021-04-27 Toyota Jidosha Kabushiki Kaisha Sound output apparatus, sound output control method, vehicle, and locking and unlocking system
CN110610562A (zh) * 2018-06-15 2019-12-24 丰田自动车株式会社 车辆用认证装置及车辆用控制系统
CN110610562B (zh) * 2018-06-15 2022-10-14 丰田自动车株式会社 车辆用认证装置及车辆用控制系统

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