JP2012229560A - Key wireless authentication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a key wireless authentication system which is one expanded function of an existing electronic key system and is capable of improving communication throughput with the electronic key system.SOLUTION: A vehicle 1 is loaded with a key wireless authentication system 18 which allows use of a mobile phone 17 as a vehicle key as one expanded function of an electronic key system 3. Then, intermittent drive of a vehicle receiver 12 of the electronic key system 3 is monitored in a vehicle receiver monitor unit 27 of a system control ECU 21, and transmission timing when the key wireless authentication system 18 transmits wireless signals Swl to a collation ECU 5 is set at activation timing of the vehicle receiver 12. Thus, when the key wireless authentication system 18 performs wireless communication with the collation ECU 5 under establishment of vehicle exterior short distance wireless authentication, the transmission timing of the wireless signals Swl matches with the activation timing of the vehicle receiver 12.

Description

  The present invention relates to a key wireless authentication system that enables a terminal other than a key of an existing electronic key system to be used as one key of the system.

  2. Description of the Related Art Conventionally, a vehicle is equipped with a key operation free system that performs ID collation with an electronic key by narrow-band wireless communication (communication distance: several meters) triggered by communication from the vehicle (see Patent Document 1, etc.). In the key operation free system, a request signal is transmitted from the vehicle to the electronic key, and ID verification is performed using an ID signal that is activated by the request signal and returned from the electronic key. If the ID verification with the electronic key located outside the vehicle is established, door locking / unlocking is permitted / executed, and if the ID verification with the electronic key located within the vehicle is established, the engine switch in the vehicle can be simply pushed. Engine start is permitted.

JP 2005-262915 A JP 2007-132085 A

  By the way, in recent years, there is a need to use a mobile phone that is always possessed as an electronic key of a vehicle (see Patent Document 2). In this case, for example, if an independent system that handles a mobile phone as a key is separately mounted on the vehicle, it is necessary to mount a large number of key systems on the vehicle, which is not realistic. In addition, even if the functions are extended to the existing electronic key system so that the mobile phone can be handled as a key, if the existing electronic key system and the extended function do not perform wasteful operations, the mobile phone can be operated. Even then, there will be a situation where the vehicle does not operate immediately. In this case, there is a concern that the user may feel uncomfortable or stressed.

  An object of the present invention is to provide a key wireless authentication system that is an extended function of an existing electronic key system and can improve communication throughput with the electronic key system.

  In order to solve the above problems, in the present invention, wireless ID authentication with a terminal having a key function is possible, and when the ID authentication is established, an existing electronic key system provided in the vehicle is used. A key wireless authentication system capable of wirelessly transmitting a corresponding identification signal and executing ID verification in the electronic key system, wherein the monitoring means monitors the operation of the vehicle receiver of the electronic key system, and the monitoring of the monitoring means The gist of the invention is that it comprises setting means for setting the transmission timing of the identification signal based on the result.

  According to the configuration of the present invention, the operation of the vehicle receiver is monitored by the monitoring unit, and the transmission timing of the identification signal transmitted when the key wireless authentication system communicates with the electronic key system is set as the monitoring result of the monitoring unit, that is, the vehicle The timing matches the start-up timing of the receiver. Therefore, since the start timing of the vehicle receiver coincides with the transmission timing of the identification signal, the vehicle receiver can receive the wireless signal from the head of the signal. Therefore, it is possible to improve the communication throughput when the key wireless authentication system communicates with the existing electronic key system.

  In the present invention, the electronic key system is a wireless key system that performs ID collation by narrowband radio in response to communication from the electronic key, and the setting means is a wireless signal as the identification signal according to the wireless key system. The gist is to set the signal transmission timing. According to this configuration, when the vehicle receiver is intermittently driven, the wireless signal is transmitted in a plurality of frames in order to cause the vehicle receiver to receive the wireless signal in any frame. In this case, when the vehicle receiver receives the wireless signal in the middle of the frame, the frame that is valid for reception becomes the next frame, and thus the time to wait before receiving the next frame is a communication loss. However, in the case of this configuration, since the wireless signal is transmitted in accordance with the activation of the vehicle receiver, the wireless signal reaches the vehicle receiver from the top frame. Therefore, since there is no waiting for reception of the wireless signal, the communication throughput can be improved accordingly.

  The gist of the present invention is that the monitoring means sequentially monitors the operation of the vehicle receiver, and the setting means sets the transmission timing at a timing according to the activation of the vehicle receiver at that time. . According to this configuration, the operation of the vehicle receiver is sequentially monitored, and the transmission timing of the identification signal is set to the timing according to the monitoring result. Therefore, the effect of securing the transmission timing setting accuracy is enhanced.

  The gist of the present invention is that the monitoring means monitors the operation of the vehicle receiver by confirming the starting voltage of the vehicle receiver. According to this configuration, the operation of the vehicle receiver can be monitored by a simple process of confirming the starting voltage of the vehicle receiver.

  The gist of the present invention is that ID authentication with the terminal is performed by short-range wireless communication. According to this configuration, a terminal capable of short-range wireless communication with the key wireless authentication system can be used as a vehicle key.

  ADVANTAGE OF THE INVENTION According to this invention, in the key radio | wireless authentication system which is 1 extended function of the existing electronic key system, the communication throughput between electronic key systems can be improved.

The block diagram of the key radio | wireless authentication system in one Embodiment. (A), (b) is a time chart which shows the state which time loss generate | occur | produces in communication. The time chart which shows the specific example of a communication sequence.

An embodiment of a key wireless authentication system embodying the present invention will be described below with reference to FIGS.
As shown in FIG. 1, a vehicle 1 is equipped with an electronic key system 3 that performs ID verification wirelessly with an electronic key 2. The electronic key system 3 includes a key operation-free system 4 that performs ID collation (smart collation) by narrow area communication (communication distance: several m) triggered by communication from the vehicle 1 side.

  In this case, the vehicle 1 is provided with a verification ECU 5 that performs ID verification with the electronic key 2, a body ECU 6 that manages the operation of the in-vehicle electrical components, and an engine ECU 7 that controls the engine 8. Connected through. An ID code (hereinafter referred to as a key ID) of the electronic key 2 used in the electronic key system 3 is registered in a memory (not shown) of the verification ECU 5. Since the electronic key 2 includes a master key and a sub key, a plurality of key IDs can be registered in the verification ECU 5. The verification ECU 5 receives an out-of-vehicle transmitter 10 capable of transmitting LF (Low Frequency) band radio waves outside the vehicle, an in-vehicle transmitter 11 capable of transmitting LF radio waves into the car, and UHF (Ultra High Frequency) band radio waves. A possible vehicle receiver 12 is connected.

  A door lock motor 13 is connected to the body ECU 6 as a drive source for door lock locking and unlocking. Connected to the body ECU 6 is a push momentary engine switch 14 that is operated when the engine 8 is started.

  When the electronic key 2 is outside the vehicle, the vehicle-side transmitter 10 intermittently forms a vehicle-outside communication area for the request signal Srq outside the vehicle within a range of several meters, and performs smart communication outside the vehicle. When the electronic key 2 receives the request signal Srq outside the vehicle, the electronic key 2 is activated by the request signal Srq and transmits an ID signal (smart signal Sst) for smart verification in order to perform smart verification outside the vehicle. Smart verification includes, for example, challenge response authentication and key ID authentication. The smart signal Sst includes, for example, a response code used for challenge response authentication and a key ID registered in the electronic key 2. When the smart signal Sst is received by the vehicle receiver 12, the verification ECU 5 performs smart verification outside the vehicle using the key ID registered in itself. When the vehicle smart verification is established, door lock / unlock by the body ECU 6 is permitted / executed.

  When it is detected by a courtesy switch (not shown) that the driver has boarded, for example, the in-car transmitter 11 forms an in-car communication area for the request signal Srq in the car instead of the out-of-car transmitter 10, Start smart communication. At this time, when the electronic key 2 receives the in-vehicle request signal Srq, the in-vehicle smart verification is started. Then, when the in-vehicle smart verification is established, the power switch operation / engine start operation by the engine switch 14 is permitted.

  The vehicle 1 is also provided with a wireless key system 15 that performs ID collation (wireless collation) by narrow area communication triggered by communication from the electronic key 2 side. In this case, the electronic key 2 is provided with an operation button 16 that is operated, for example, when a vehicle door is unlocked and unlocked remotely.

  When the operation button 16 is operated, the electronic key 2 transmits an ID signal (wireless signal Swl) for wireless verification. The wireless signal Swl includes a key ID registered in the electronic key 2 and a function code corresponding to the operation button 16, and is transmitted in a plurality of frames. When the verification signal is received by the vehicle receiver 12, the verification ECU 5 performs wireless verification using the key ID registered in itself. And if wireless collation is materialized, locking and unlocking of a vehicle door will be performed. The wireless signal Swl corresponds to the identification signal.

  The vehicle 1 is provided with a key wireless authentication system 18 that enables a terminal (for example, a mobile phone 17 or the like) other than the electronic key 2 to be used as a vehicle key as one of the extended functions of the electronic key system 3, for example. The key wireless authentication system 18 is a one-key system that can be added to the vehicle 1 (can be retrofitted) and performs ID authentication (short-range wireless authentication) with the mobile phone 17 by, for example, short-range wireless (communication distance: about 10 cm). To do. As near field communication, for example, NFC (Near Field Communication) is used, and for example, LF band and HF (High Frequency) band are used as frequencies. The mobile phone 17 corresponds to a terminal.

  Further, the key wireless authentication system 18 executes ID verification (smart verification or wireless verification) with the verification ECU 5 using the communication network of the electronic key system 3 when the short-range wireless authentication with the mobile phone 17 is established. That is, the key wireless authentication system 18 is also a system that indirectly authenticates the mobile phone 17 and the verification ECU 5. If the short distance wireless authentication is established on the mobile phone 17 and if the ID verification is also established in the verification ECU 5 and the key wireless authentication system 18, door lock / unlock and engine start are permitted / executed.

  In this case, an ID code (hereinafter referred to as short-range wireless authentication ID) used in the key wireless authentication system 18 is registered in the memory of the mobile phone 17. The short-range wireless authentication ID may be acquired from a server by connecting the mobile phone 17 to a server (not shown) via the Internet, or may be registered in advance in the mobile phone 17. In any case, when the mobile phone 17 is used as a vehicle key, a short-range wireless authentication ID is registered in the mobile phone 17 in advance.

  The key wireless authentication system 18 includes an outside reader / writer 19 that performs near field wireless authentication (near field wireless authentication) with a mobile phone 17 outside the vehicle, and a near field wireless authentication (near field wireless authentication) within the vehicle. An in-car reader / writer 20 is provided. The outside reader / writer 19 is disposed, for example, on an outside door mirror or door trim. The in-car reader / writer 20 is disposed, for example, in a center console in the car. The reader / writers 19 and 20 transmit and receive radio waves according to near field communication.

  The key wireless authentication system 18 is provided with a system control ECU 21 that controls the key wireless authentication system 18. The system control ECU 21 is provided with a short-range wireless authentication circuit 22 that manages the operation of short-range wireless authentication. The same short-distance wireless authentication ID as that of the mobile phone 17 is registered in the memory (not shown) of the short-distance wireless authentication circuit 22. This short-range wireless authentication ID may be registered in advance in the short-range wireless authentication circuit 22, or an ID registered in the mobile phone 17 may be acquired from the mobile phone 17 and registered.

  The system control ECU 21 is provided with a key ID verification communication circuit 23 that performs smart verification and wireless verification in the key wireless authentication system 18. The key ID verification communication circuit 23 includes a circuit control unit 24 that controls the key ID verification communication circuit 23, a reception unit 25 that can receive LF radio waves, and a transmission unit 26 that can transmit UHF radio waves. . The key ID verification communication circuit 23 of this example is disposed at least at a position where the radio wave from the in-vehicle transmitter 11 can be received (for example, in the vehicle).

  A key ID similar to that registered in the verification ECU 5 is registered in a memory (not shown) of the circuit control unit 24. This key ID is an ID used when the verification ECU 5 and the key wireless authentication system 18 perform smart verification or wireless verification, and is registered in the key ID verification communication circuit 23 (circuit control unit 24) in advance. It may be possible to register again. Further, the key ID of the key ID verification communication circuit 23 may be an ID different from the key ID of the electronic key 2 or the same.

  When the near field wireless authentication circuit 22 confirms that the near field wireless authentication (outside vehicle near field wireless authentication) is established with the mobile phone 17 outside the vehicle in the outside reader / writer 19, the near field wireless authentication establishment notification Sa is verified with the key ID. Output to the communication circuit 23. The key ID verification communication circuit 23 starts wireless verification with the verification ECU 5 when the vehicle short-range wireless authentication establishment notification Sa is input from the short-range wireless authentication circuit 22. When the verification ECU 5 confirms that this wireless verification is established, the verification ECU 5 performs locking and unlocking of the door lock.

  When the in-vehicle reader / writer 20 confirms that the short-distance wireless authentication (in-vehicle short-range wireless authentication) is established with the mobile phone 17 in the vehicle, the short-range wireless authentication circuit 22 uses the in-vehicle short-range wireless authentication establishment notification Sb as a key. Output to the ID verification communication circuit 23. When the in-vehicle short-range wireless authentication establishment notification Sb is input from the short-range wireless authentication circuit 22, the key ID verification communication circuit 23 starts smart verification (in-vehicle smart verification) with the verification ECU 5. When the verification ECU 5 confirms that this smart verification is established, the verification ECU 5 permits the operation of power supply transition / engine start by the engine switch 14.

  The key wireless authentication system 18 of this example is provided with a wireless signal transmission timing setting function for setting a transmission timing when the key ID verification communication circuit 23 transmits the wireless signal Swl. By the way, as shown in FIG. 2A, the vehicle receiver 12 takes an operation of waiting for the wireless signal Swl from the electronic key 2 by intermittent driving in order to save the power of the vehicle 1. Therefore, the wireless signal Swl is transmitted in a plurality of frames and is received by the vehicle receiver 12 at the head of any frame.

  However, as shown in FIG. 2 (b), when the vehicle receiver 12 starts receiving in the middle of the frame, since the next frame is valid, there is a loss in the reception time for the time Ts shown in the figure. It will occur. That is, the reception timing is delayed by the time Ts. For this reason, since the communication throughput deteriorates, the wireless signal transmission timing setting function of this example is a technique for eliminating this communication delay.

  In this case, the system control ECU 21 is provided with a vehicle receiver monitor unit 27 that monitors intermittent driving of the vehicle receiver 12. The vehicle receiver monitor unit 27 is connected to the vehicle receiver 12 by, for example, a Zika line. The vehicle receiver 12 monitors the intermittent drive of the vehicle receiver 12 by monitoring the activation voltage Vc supplied to the vehicle receiver 12 during driving. When the activation voltage Vc of the vehicle receiver 12 is confirmed, the voltage detection signal Scc is detected. Is output. The vehicle receiver monitor unit 27 corresponds to the monitoring means.

  The system control ECU 21 is provided with a transmission timing setting unit 28 that sets the transmission timing of the wireless signal Swl based on the monitoring result of the vehicle receiver monitor unit 27. When the voltage detection signal Scc is input from the vehicle receiver monitor unit 27, the transmission timing setting unit 28 sets the timing as the transmission timing of the wireless signal Swl. Therefore, when the transmission timing setting unit 28 receives the voltage detection signal Scc from the vehicle receiver monitoring unit 27 and receives the in-vehicle short-range wireless authentication establishment notification from the short-range wireless authentication circuit 22, the voltage detection signal Scc. The wireless signal Swl is transmitted from the key ID verification communication circuit 23 at the input timing. The transmission timing setting unit 28 corresponds to setting means.

Next, the operation of the key wireless authentication system 18 of this example will be described with reference to FIG.
The vehicle receiver monitor unit 27 constantly monitors the activation voltage Vc of the vehicle receiver 12 regardless of whether the vehicle 1 is stopped or parked. At this time, when detecting the activation voltage Vc, the vehicle receiver monitor unit 27 sequentially outputs the voltage detection signal Scc to the transmission timing setting unit 28 at the detection timing. When the voltage detection signal Scc is input, the transmission timing setting unit 28 grasps this signal input timing as the transmission timing of the wireless signal Swl.

  In order to unlock the vehicle door of the parked vehicle 1, an operation of holding the mobile phone 17 from the outside of the vehicle to the outside reader / writer 19 is performed. Since the driving radio wave Svc for activating the mobile phone 17 is intermittently transmitted from the outside reader / writer 19, when the mobile phone 17 receives this driving radio wave Svc, it switches from the standby state until then to the activated state. Then, the activated mobile phone 17 transmits an ID signal for short distance wireless authentication (short distance wireless authentication ID signal Skk). The short-range wireless authentication ID signal Skk includes a short-range wireless authentication ID registered in the mobile phone 17.

  When the outside reader / writer 19 receives the short-range wireless authentication ID signal Skk from the mobile phone 17, it outputs the short-range wireless authentication ID included in the short-range wireless authentication ID signal Skk to the short-range wireless authentication circuit 22. When the short-range wireless authentication circuit 22 inputs a short-range wireless authentication ID from the outside reader / writer 19, the short-range wireless authentication circuit 22 executes the near-field wireless authentication outside the vehicle using this ID. Output to the ID verification communication circuit 23.

  The key ID verification communication circuit 23 shifts to the transmission of the wireless signal Swl when the near field wireless authentication establishment notification Sa is input from the near field wireless authentication circuit 22. A wireless signal Swl is transmitted. That is, the key ID verification communication circuit 23 starts transmitting the wireless signal Swl at the timing when the voltage detection signal Scc is input from the transmission timing setting unit 28. When the verification ECU 5 receives the wireless signal Swl from the key ID verification communication circuit 23, the verification ECU 5 enters the confirmation of the wireless signal Swl and executes a process according to the wireless signal Swl.

  For this reason, since the wireless signal Swl is transmitted at the timing when the vehicle receiver 12 is intermittently driven, it is received by the vehicle receiver 12 from the first frame. Therefore, since the wireless signal Swl reaches the vehicle receiver 12 without losing time, the communication time when the key wireless authentication system 18 performs wireless verification with the verification ECU 5 can be shortened. Therefore, when unlocking the vehicle door, the vehicle door is unlocked as soon as the near-field wireless authentication is established.

  In order to start the engine with the mobile phone 17 after boarding, an operation of holding the mobile phone 17 over the in-car reader / writer 20 is performed. When short-range wireless communication is established between the mobile phone 17 and the in-vehicle reader / writer 20, the short-range wireless authentication circuit 22 executes in-vehicle short-range wireless authentication using the short-range wireless authentication ID received from the mobile phone 17 at this time. If the authentication is confirmed, an in-vehicle short-distance wireless authentication establishment notification Sb is output to the key ID verification communication circuit 23.

  When the key ID verification communication circuit 23 receives the in-vehicle short-range wireless authentication establishment notification Sb from the short-range wireless authentication circuit 22, the key ID verification communication circuit 23 shifts to smart verification (in-vehicle smart verification). It waits for reception of the request signal Srq to be transmitted. And key ID collation communication circuit 23 will transmit smart signal Sst to collation ECU5, if request signal Srq is received from collation ECU5 under in-vehicle short-distance wireless authentication establishment.

  When the verification ECU 5 receives the smart signal Sst from the key ID verification communication circuit 23, the verification ECU 5 executes smart verification using the smart verification key ID included in the smart signal Sst. When the verification ECU 5 confirms that the key IDs of both are established and confirms that the smart verification is established, the verification ECU 5 permits the power switch operation / engine start operation by the engine switch 14. Therefore, if the engine switch 14 is operated, the engine 8 can be started.

  As described above, in this example, in the key wireless authentication system 18 that can be installed as an extended function of the electronic key system 3, the vehicle receiver monitor unit 27 monitors intermittent driving of the vehicle receiver 12. Then, when the near-field wireless authentication with the mobile phone 17 is established by the key wireless authentication system 18, the intermittent operation of the vehicle receiver 12 is performed so that the start timing of the vehicle receiver 12 matches the transmission timing of the wireless signal Swl. A wireless signal Swl is transmitted from the key wireless authentication system 18 to the verification ECU 5 in accordance with the operation.

  For this reason, since the wireless signal Swl reaches the vehicle receiver 12 from the top frame, the vehicle receiver 12 can acquire the wireless signal Swl from the top frame. Therefore, since the vehicle receiver 12 does not receive the wireless signal Swl in the middle of the frame, it is possible to reduce communication time loss. Therefore, it is possible to improve the communication throughput when the key wireless authentication system 18 wirelessly communicates with the verification ECU 5.

According to the configuration of the present embodiment, the following effects can be obtained.
(1) When the intermittent driving of the vehicle receiver 12 is monitored and the key wireless authentication system 18 performs wireless communication with the verification ECU 5 under the establishment of the external short-range wireless authentication, the transmission timing of the wireless signal Swl is The wireless signal Swl is transmitted in accordance with the start timing. Therefore, since the start timing of the vehicle receiver 12 and the transmission timing of the wireless signal Swl coincide, the vehicle receiver 12 can receive the wireless signal Swl from the first frame. Accordingly, the communication throughput when the key wireless authentication system 18 performs wireless communication with the existing electronic key system 3 can be improved.

  (2) Since the vehicle receiver 12 moves intermittently, there is a premise that the wireless signal Swl is transmitted in a plurality of frames in order to cause the vehicle receiver 12 to capture the wireless signal Swl from the head in any frame. . In this case, when the vehicle receiver 12 receives the wireless signal Swl in the middle of the frame, a time loss is inevitably generated until the next valid frame can be received. Using technology can eliminate this problem. In addition, since the wireless signal Swl is transmitted in a plurality of frames from the key ID verification communication circuit 23, the transmission program (transmission control processing) of the wireless signal Swl of the electronic key 2 is also used as it is in the key ID verification communication circuit 23. can do.

  (3) The intermittent driving of the vehicle receiver 12 is sequentially monitored, and the transmission timing of the wireless signal Swl is set to a timing that matches the starting timing of the vehicle receiver 12 at that time. Therefore, the effect of ensuring the setting accuracy of the transmission timing of the wireless signal Swl is enhanced.

  (4) The start timing of the vehicle receiver 12 is monitored by connecting the vehicle receiver 12 to the system control ECU 21 with a Zika line and monitoring the start voltage Vc supplied to the vehicle receiver 12. Therefore, the intermittent operation of the vehicle receiver 12 can be monitored by a simple process of confirming the starting voltage Vc of the vehicle receiver 12.

(5) Since the key wireless authentication system 18 is a system capable of short-range wireless communication with the mobile phone 17, the mobile phone 17 can be used as a wireless vehicle key.
(6) Since the key wireless authentication system 18 is one of the extended functions, the key wireless authentication system 18 can be retrofitted to the vehicle 1 on which the key wireless authentication system 18 is not originally mounted. Therefore, it is possible to cope with a user who desires to install the key wireless authentication system 18.

Note that the embodiment is not limited to the configuration described so far, and may be modified as follows.
The wireless signal Swl is not limited to being composed of a plurality of frames, and may be constructed with only one frame. In this case, since the wireless signal Swl transmitted from the key ID verification communication circuit 23 is only one frame, effects such as power saving and communication processing simplification can be obtained.

  The key wireless authentication system 18 is not limited to having both a wireless communication function and a smart communication function, and may have only a wireless communication function, for example. In this case, the key wireless authentication system 18 collates with the collation ECU 5 by wireless communication even in the vehicle short-distance wireless authentication.

The key wireless authentication system 18 is not limited to being able to execute both the near-field wireless authentication outside the vehicle and the near-field wireless authentication inside the vehicle, as long as it can execute at least one.
The key wireless authentication system 18 is not limited to a system that can operate door lock locking / unlocking and engine start, and may be applied to a system that operates other in-vehicle devices.

  The monitoring method of intermittent driving of the vehicle receiver 12 is not limited to a method of connecting the system control ECU 21 to the vehicle receiver 12 with a Zika line and monitoring the activation voltage Vc supplied to the vehicle receiver 12. For example, a method of directly acquiring and grasping the notification from the verification ECU 5 may be used.

  -The time interval of starting of the vehicle receiver 12 may be measured, and the starting timing of the vehicle receiver 12 may be recognized from the measured time. In short, if the start timing of the vehicle receiver 12 is known, the monitoring method is not particularly limited.

  The wireless key system 15 is not limited to a system that remotely controls door lock / unlock. For example, it is possible to remotely open and close a slide door, a back door, etc., or a system for a panic function.

The key operation free system 4 is not limited to a system having a boarding / alighting function and an engine starting function, and may be applied to other functions.
The frequency of radio waves used in the electronic key system 3 and the key wireless authentication system 18 can be changed as appropriate. In addition, the key operation free system 4 is not limited to having different frequencies in the forward path and the return path of bidirectional communication, and may have the same frequency.

Communication between the key wireless authentication system 18 and the mobile phone 17 is not limited to short-range wireless communication, and may be, for example, Bluetooth communication.
-A terminal is not limited to the mobile telephone 17, You may use an IC card etc., for example.

  The identification signal is not limited to the wireless signal Swl, and can be appropriately changed according to the system to be used. Further, the identification signal is not limited to a signal including ID, and may be a simple trigger signal.

The electronic key system 3 is not limited to the key operation free system 4 and the wireless key system 15, and other systems can be used as appropriate.
Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below together with their effects.

  (A) The electronic key system according to any one of claims 1 to 5, wherein the electronic key system is a wireless key system that performs ID collation by a narrow band radio triggered by communication from the electronic key, or a narrow band triggered by communication from a vehicle. It is one of the key operation free systems which perform ID collation wirelessly. According to this configuration, the vehicle can be operated using a wireless key system or a key operation free system.

  (B) In any one of claims 1 to 5 and the technical idea (A), when ID verification is established with the terminal located outside the vehicle, the communication operation according to wireless communication is performed, and the terminal located inside the vehicle When ID verification with the terminal is established, a communication operation according to smart communication is performed. According to this configuration, it is possible to perform appropriate communication according to the position of the terminal.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Electronic key, 3 ... Electronic key system, 4 ... Key operation free system, 12 ... Vehicle receiver, 15 ... Wireless key system, 17 ... Mobile phone as a terminal, 18 ... Key wireless authentication system, 27 A vehicle receiver monitor unit as a monitoring unit, 28 a transmission timing setting unit as a setting unit, Swl a wireless signal as an identification signal, and Vc a starting voltage.

Claims (5)

ID authentication by radio with a terminal having a key function is possible, and when the ID authentication is established, an identification signal according to the existing electronic key system provided in the vehicle is wirelessly transmitted, and the electronic key system A key wireless authentication system capable of performing ID verification in
Monitoring means for monitoring the operation of the vehicle receiver of the electronic key system;
A key wireless authentication system comprising: setting means for setting a transmission timing of the identification signal based on a monitoring result of the monitoring means. The electronic key system is a wireless key system that performs ID collation by narrow-band radio in response to communication from the electronic key, and the setting means transmits a wireless signal as the identification signal according to the wireless key system. The key wireless authentication system according to claim 1, wherein: The monitoring means sequentially monitors the operation of the vehicle receiver, and the setting means sets the transmission timing at a timing that matches the activation of the vehicle receiver at that time. 2. The key wireless authentication system according to 2. The key wireless authentication system according to any one of claims 1 to 3, wherein the monitoring unit monitors an operation of the vehicle receiver by confirming an activation voltage of the vehicle receiver. . The key wireless authentication system according to claim 1, wherein ID authentication with the terminal is performed by short-range wireless.

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