JP5129179B2 - Electronic key system locking / unlocking function stop device - Google Patents

Description

  The present invention relates to a locking / unlocking function stopping device for an electronic key system capable of locking and unlocking a door lock based on whether or not external verification can be established between an electronic key and a vehicle.

  In recent years, many vehicles are equipped with an electronic key system that uses an electronic key capable of transmitting an ID code unique to the vehicle by wireless communication as a vehicle key. In this electronic key system, when the vehicle receives the ID code transmitted from the electronic key, the vehicle performs ID verification in which the ID code of the electronic key and the ID code registered in advance are checked. If the ID collation is established, the control of the in-vehicle device, for example, locking / unlocking the door lock of the vehicle and starting of the engine are permitted or executed (for example, see Patent Document 1).

  This electronic key system does not require any button operation on the electronic key when transmitting the ID code from the electronic key, that is, automatically transmits the ID code from the electronic key. Specifically, in the electronic key system, a request for sending an ID code to the electronic key is periodically sent from the vehicle, and when the electronic key receives the request, the electronic key sends the ID code in response to the request. The vehicle performs ID verification (verification outside the vehicle) using this ID code. The vehicle unlocks the door lock when the outside collation is established, and locks the door lock when the ID code is not received or the outside collation is not established. The vehicle transmits a request around each door to form a communication area around the vehicle. The transmission of the request from the vehicle is executed with the opening / closing of the door as a trigger. In this electronic key system, the wireless communication between the vehicle and the electronic key performs narrow-area wireless communication of about several meters, for example.

JP 2002-29385 A

  By the way, in this kind of electronic key system, when the driver approaches the vehicle and enters the communication area, when the outside verification is switched to the established state, the door lock is automatically unlocked. There is a system (automatic locking / unlocking function) in which the door lock is automatically locked when the driver leaves the vehicle and leaves the communication area and the vehicle outside verification is not established. In this system, for example, when a vehicle is washed, a user with an electronic key approaches or leaves the vehicle, so every time an electronic key enters or exits a wireless communication area, Regardless of whether the door lock is switched between locking and unlocking, this is a problem.

  Therefore, in order to cope with this problem, a stop device for stopping this automatic locking / unlocking function has been developed for conventional vehicles. In this stop device, a stop command is transmitted from the electronic key by simultaneously pressing and holding, for example, two operation buttons provided on the electronic key, and all the operations of the in-vehicle device by ID verification are stopped. However, since this stop device requires an individual operation every time the automatic locking / unlocking function is forcibly stopped, for example, this stop operation is imposed on the user every time the vehicle is visited.

  In addition, since the above-described stopping device forcibly stops the automatic locking / unlocking function, not only the locking / unlocking of the door lock, but also the operation of all in-vehicle devices by ID verification is stopped. Even if an attempt is made to operate an in-vehicle device (for example, engine start) other than the door lock by using the system, this cannot be executed, which is also a factor causing the user to feel inconvenience. Therefore, in addition to being able to execute this operation with ease when forcibly stopping the automatic locking / unlocking function of the electronic key system, there is a demand for the development of a system that can use vehicle functions other than locking / unlocking the door lock without problems. It was.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an electronic key system locking / unlocking function stop device capable of performing this operation with ease when the automatic locking / unlocking function of the electronic key system is forcibly stopped. Is to provide.

Hereinafter, means for achieving the above-described object and its operation and effects will be described.
According to the first aspect of the present invention, when the electronic key receives a reply request for the ID code transmitted from the vehicle outside the vehicle, the electronic key returns the ID code to the vehicle and ID verification is performed. The door lock is automatically unlocked when switching is established, and conversely, when the ID collation is not established, the door lock is automatically locked. And a registration means that functions when registering an automatic locking / unlocking operation stop location for disabling the automatic locking / unlocking function in the vehicle, and determining whether the vehicle is located at the automatic locking / unlocking operation stop location. A determination unit; and a locking / unlocking operation stopping unit that disables the automatic locking / unlocking function when the determination unit determines that the vehicle is located at the automatic locking / unlocking operation stop location. It is the gist.

  According to this configuration, if the location where the automatic locking / unlocking function is to be invalidated is registered in the vehicle by the registration means, when the determination means determines that the vehicle is located at the automatic locking / unlocking operation stop location, The lock operation stop means functions to invalidate the automatic locking / unlocking function. For this reason, if the vehicle is located at the automatic locking / unlocking operation stop location, the automatic locking / unlocking function is automatically invalidated, and therefore, for example, when performing the stopping operation, it is not necessary to impose an individual setting operation on the user each time. Therefore, since the operation of disabling the automatic locking / unlocking function can be performed easily, it is possible to improve convenience.

  According to a second aspect of the present invention, in the locking / unlocking function stopping device for the electronic key system according to the first aspect, the registration means is a navigation system provided in the vehicle, and the automatic unlocking / unlocking is performed in the navigation system. When a location where the lock function is to be stopped is selected, the location information is registered in the vehicle as the automatic locking / unlocking operation stop location, and the determination means is location information regarding the automatic locking / unlocking operation stop location registered in the vehicle. And the location information of the current position obtained from the navigation system to determine whether or not the vehicle is located at the automatic locking / unlocking operation stop location.

  According to this configuration, since the navigation system that manages the map information is used as the registration means, even if the vehicle is not actually located at the automatic locking / unlocking operation stop location, the automatic unlocking is performed by the map information registered in the navigation system. It is possible to register the lock operation stop location. For this reason, when registering the automatic locking / unlocking operation stop location, there is no need to actually go to the automatic locking / unlocking operation stop location, so there is no inconvenience in the setting work.

  According to a third aspect of the present invention, in the locking / unlocking function stopping device of the electronic key system according to the first or second aspect, the registration means operates to register a location where the automatic locking / unlocking function is to be stopped. And a location information acquisition unit capable of acquiring location information of the current location of the vehicle. When the vehicle is positioned at a location where the automatic locking / unlocking function is to be stopped and the operation unit is operated, The location information obtained from the location information acquisition unit is registered in the vehicle as the automatic locking / unlocking operation stop location, and the determination unit includes the location information on the automatic locking / unlocking operation stop location registered in the vehicle and the location information. The gist is to determine whether or not the vehicle is located at the automatic locking / unlocking operation stop location by comparing with the location information of the current location of the vehicle obtained from the acquisition means. To have.

  According to this configuration, when the driver performs a registration operation in the registration operation unit, the location information obtained from the location information acquisition unit is registered in the storage unit, so that the location where the vehicle is currently located is automatically stopped. This input value can be immediately registered as the automatic locking / unlocking operation stop location by performing a registration operation on the registration operation means when desired. Further, the location information acquisition means can acquire location information of the current position for determining whether or not the location is the automatic locking / unlocking operation stop location.

  According to a fourth aspect of the present invention, in the locking / unlocking function stopping device for the electronic key system according to the third aspect, the location information acquisition means is a global positioning system provided in the vehicle, and the registration means When the operation means is registered, the position information acquired by the global positioning system is registered in the vehicle as the automatic locking / unlocking operation stop location, and the determination means is obtained from the global positioning system. It is determined whether or not the vehicle is located at the automatic locking / unlocking operation stop location by comparing the position information of the current position of the vehicle with the positional information related to the automatic locking / unlocking operation stop location registered in the vehicle. The gist is to do.

  According to this configuration, since the global positioning system (GPS) is used as the location information acquisition means, the location information consisting of latitude and longitude can be adopted as the location information, and the automatic locking / unlocking operation stop location can be determined. In addition to being able to register with high position accuracy, it is possible to accurately determine whether or not it is a place where automatic locking / unlocking operation is stopped.

  According to a fifth aspect of the present invention, in the locking / unlocking function stopping device of the electronic key system according to the third aspect, the location information acquisition means is an imaging means provided in the vehicle, and the registration means When the operation unit is registered, the image information captured by the imaging unit is registered in the vehicle as the automatic locking / unlocking operation stop location, and the determination unit captures the current position of the vehicle acquired from the imaging unit. The gist is to determine whether or not the vehicle is located at the automatic locking / unlocking operation stop location by comparing the image with a registered image of the automatic locking / unlocking operation stop location.

  According to this configuration, since the imaging unit is used as the location information acquisition unit, it is possible to set the automatic locking / unlocking operation stop location even in a location where GPS radio waves do not reach. Therefore, it is difficult to register the location where the automatic locking / unlocking operation stop is executed, and it can be said that the effect is very high in this respect.

  According to a sixth aspect of the present invention, in the locking / unlocking function stopping device of the electronic key system according to any one of the first to fifth aspects, the locking / unlocking operation stopping means does not transmit the reply request from the vehicle. By doing so, the gist is to invalidate the automatic locking / unlocking function.

  According to this configuration, the unintended automatic locking / unlocking function is invalidated by stopping the transmission of the radio signal from the vehicle. Further, in this case, useless transmission of radio signals is not necessary, so that it is possible to reduce power consumption required for this communication and to save energy.

  According to a seventh aspect of the present invention, in the locking / unlocking function stopping device of the electronic key system according to any one of the first to fifth aspects, the locking / unlocking operation stopping means performs the ID collation outside the vehicle as usual. However, the gist is to disable the automatic locking / unlocking function by not performing the locking / unlocking operation regardless of whether or not the verification is established.

  According to this configuration, the conventional attempt to confirm whether or not the outside verification is made is possible, so that it is possible to invalidate the automatic locking / unlocking function while sequentially monitoring whether or not there is an electronic key around the vehicle. .

  According to the present invention, it is possible to provide an electronic key system locking / unlocking function stop device capable of executing this operation with an easy operation when the automatic locking / unlocking function of the electronic key system is forcibly stopped.

1 is a block diagram showing a schematic configuration of an electronic key system in a first embodiment. The state diagram which shows the communication area of a vehicle, and the locking / unlocking operation of an electronic key. The flowchart which shows the locking / unlocking stop determination of an electronic key system. The block diagram which shows schematic structure of the electronic key system in 2nd and 3rd embodiment.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the vehicle 2 is equipped with an electronic key system capable of performing vehicle operations such as locking and unlocking a door lock without the driver actually operating the vehicle key, for example. . In the electronic key system, an electronic key 1 capable of transmitting a key-specific ID code by wireless communication is used as a vehicle key. The electronic key system transmits a request signal Srq as an ID code reply request from the vehicle 2, and when the electronic key 1 receives the request signal Srq, the electronic key 1 includes an ID code including its own ID code in response thereto. This is a system in which a code signal Sid is returned to the vehicle 2 by narrow-range wireless communication, and the door lock is unlocked or unlocked depending on whether or not the ID code of the electronic key 1 matches the ID code of the vehicle 2.

  The electronic key system of this example includes a key-free system (key-free function) in which the door 2 of the vehicle 2 is automatically locked and unlocked. For example, when the driver holding the electronic key 1 approaches the vehicle 2, all the door locks of the vehicle 2 are automatically locked, while the driver holding the electronic key 1 This is a system in which all door locks of the vehicle 2 are automatically unlocked when leaving.

  The electronic key system will be described below. The vehicle 2 is provided with a verification ECU (Electronic Control Unit) 21 that performs ID verification when performing narrow-area wireless communication with the electronic key 1. The verification ECU 21 includes an outside LF transmitter 22 embedded in each door of the vehicle 2 and capable of transmitting an LF (Low Frequency) band radio signal to the outside of the vehicle, and an LF band radio signal embedded in the vehicle under the floor of the vehicle. Is connected to an in-vehicle LF transmitter 23 and an RF receiver 24 embedded in a vehicle body or the like behind the vehicle and capable of receiving radio signals in an RF (Radio Frequency) band. The vehicle exterior LF transmitter 22 and the vehicle interior LF transmitter 23 can transmit a request signal Srq from the vehicle exterior LF transmission antenna 22a and the vehicle interior LF transmission antenna 23a to the surroundings. The in-vehicle LF transmitter 22 forms a communication area (external communication area A1) for the request signal Srq around the vehicle 2, and the in-vehicle LF transmitter 23 forms a communication area (in-vehicle communication area A2) for the request signal Srq throughout the vehicle. (See FIG. 2). The RF receiver 24 demodulates the RF band radio signal received by its own RF receiving antenna 24a, and outputs the demodulated signal to the verification ECU 21 as received data.

  For example, a main body ECU 31 that manages the locking and unlocking of door locks and the like is connected to the verification ECU 21 via an in-vehicle LAN (Local Area Network) 30. The main body ECU 31 controls the door lock device of each door based on a command from the verification ECU 21 to bring the door lock into a locked state or an unlocked state. Further, the main body ECU 31 outputs the opening and closing of each door to the verification ECU 21 based on the detection result from the courtesy switch 25 provided in each door.

  On the other hand, the electronic key 1 is provided with a communication control unit 11 as a control unit for performing wireless communication with the vehicle 2 according to the electronic key system. Connected to the communication control unit 11 are an LF reception unit 12 that can receive an externally transmitted LF band radio signal and an RF transmission unit 13 that can transmit an RF band radio signal in accordance with a command from the communication control unit 11. Has been. The LF receiver 12 demodulates the LF band radio signal received by its own LF receiving antenna 12a, and outputs the demodulated signal to the communication controller 11 as received data. The RF transmitter 13 modulates communication data obtained from the communication controller 11 and transmits an RF band ID code signal Sid including the unique ID code of the electronic key 1 from the RF transmitter antenna 13a.

  When the vehicle 2 is in a parked state (engine stopped and door lock locked), the verification ECU 21 periodically transmits a request signal Srq for the LF band from the outside LF transmitter 22 and sets the outside communication area A1 around the vehicle 2. Form. When the electronic key 1 enters the outside communication area A1 and receives the request signal Srq by the LF receiver 12, the electronic key 1 includes an ID code registered in its own memory 11a in response to the request signal Srq. An RF band ID code signal Sid is returned from the RF transmitter 13. When the ID code signal Sid is received by the RF receiver 24, the verification ECU 21 compares the ID code registered in its own memory 21a with the ID code of the electronic key 1 and performs ID verification (external vehicle verification). When the vehicle exterior verification is established, the verification ECU 21 outputs a door lock unlocking command to the main body ECU 31. The main body ECU 31 that has received the unlock command drives the door lock device 26 to unlock the locked door lock.

  On the other hand, when the vehicle 2 is in a stopped state (engine stop and door lock unlocked state), the verification ECU 21 confirms that any of the doors has been opened and closed by a signal from the main body ECU 31. When recognized, the request signal Srq is periodically transmitted from the vehicle outside LF transmitter 22 to form the vehicle outside communication area A1 around the vehicle 2. If the electronic key 1 leaves the outside communication area A1 and cannot receive the request signal Srq, the electronic key 1 does not return the ID code signal Sid. The collation ECU 21 outputs a door lock locking command to the main body ECU 31 when the outside collation is not established because the ID code signal Sid is not received by the RF receiver 24. The main body ECU 31 that has received the locking command drives the door lock device 26 to lock the unlocked door lock.

  Further, the electronic key system includes a key-free engine start system as a function capable of performing an engine start / stop operation by a simple switch operation without requiring an actual vehicle key operation at the time of engine start / stop operation. This key-free engine start system will be described below. The vehicle 2 includes the above-described main body ECU 31 that performs power management of in-vehicle electrical components, the engine ECU 32 that performs engine ignition control and fuel injection control, and operation of a shift lever. And a shift ECU 33 for controlling the automatic transmission based on the above. The main body ECU 31, the engine ECU 32, and the shift ECU 33 are connected to various ECUs such as the verification ECU 21 through the in-vehicle LAN 30.

  The driver's seat of the vehicle 2 is provided with an engine switch 27 that is operated when the power state of the vehicle 2 is switched. The engine switch 27 is a rotary operation type that is operated by turning a knob that is the operation location, and is connected to the main body ECU 31 via a harness.

  The verification ECU 21 transmits a request signal Srq from the in-vehicle LF transmitter 23 when, for example, the courtesy switch 25 recognizes that the door has been opened and the driver has boarded after the vehicle exterior verification is established and the door lock is unlocked. Then, the in-vehicle communication area A2 is formed throughout the vehicle. When the ID code signal Sid returned by the electronic key 1 entering the in-vehicle communication area A2 is received by the RF receiver 24, the verification ECU 21 compares the ID code registered in the electronic key 1 with the ID code of the electronic key 1. ID verification (in-vehicle verification). When this in-vehicle collation is established, the collation ECU 21 sets an in-vehicle collation flag in the memory 21a.

  When the main body ECU 31 detects that the driver has turned the engine switch 27 to switch the power state of the vehicle 2, the main body ECU 31 first confirms whether or not the in-vehicle collation is established. At this time, the main body ECU 31 recognizes that the in-vehicle collation has been established if it receives a notification from the collation ECU 21 that the in-vehicle collation has been established, but conversely receives a notification from the collation ECU 21 that the in-vehicle collation has not been established. Then, the verification ECU 21 re-executes the in-vehicle verification to reconfirm the success or failure of the in-vehicle verification. Even if the main body ECU 31 causes the verification ECU 21 to re-execute the in-vehicle verification, the main body ECU 31 recognizes that the in-vehicle verification is not established if it does not receive a notification from the verification ECU 21 that the in-vehicle verification has been established.

  When the main body ECU 31 detects that the engine switch 27 is rotated while the brake pedal is depressed while the engine is stopped, the main body ECU 31 starts the stopped engine on the condition that the vehicle interior verification is established. A start signal is output to the engine ECU 32 as much as possible. The engine ECU 32 that has received the start signal confirms the in-vehicle verification result, starts ignition control and fuel injection control, and starts the engine. On the other hand, when the main body ECU 31 detects that the engine switch 27 has been rotated while the engine is running, the main body ECU 31 stops the engine on the condition that the vehicle 2 is stopped.

  In addition, the electronic key system has a wireless key system (wireless key system (wireless) as a function capable of wirelessly transmitting the locking signal S1 or the unlocking signal Sul to the vehicle 2 by operating the button of the electronic key 1 to lock and unlock the door lock. Door lock function). The vehicle 2 equipped with the wireless key system is provided with the above-described verification ECU 21 as a control unit of the wireless key system. The electronic key 1 is provided with a locking button 14 for transmitting a locking signal S1 and an unlocking button 15 for transmitting an unlocking signal Sul exposed on the surface of the casing (see FIG. 2). The lock button 14 and the unlock button 15 are connected to the communication control unit 11. The aforementioned RF transmitter 13 modulates the communication data obtained from the communication controller 11 and includes the unique ID code and function code of the electronic key 1 to generate an RF band locking signal S1 or unlocking signal Sul. It transmits from the RF transmission antenna 13a.

  When the lock button 14 is operated, the electronic key 1 transmits a lock signal Sl from the RF transmitter 13. When the verification ECU 21 receives the locking signal Sl by the RF receiver 24, the verification ECU 21 compares the ID code registered in its own memory 21a with the ID code of the electronic key 1 to perform ID verification (wireless verification). When the wireless verification is established, the verification ECU 21 outputs a door lock locking command to the main body ECU 31. The main body ECU 31 that has received the locking command drives the door lock device 26 to lock the unlocked door lock.

  In addition, when the unlock button 15 is operated, the electronic key 1 transmits an unlock signal Sul from the RF transmitter 13. When the verification ECU 21 receives the unlock signal Sul by the RF receiver 24, the verification ECU 21 compares the ID code registered in its own memory 21a with the ID code of the electronic key 1 to perform ID verification (wireless verification). When the wireless verification is established, the verification ECU 21 outputs a door lock unlocking command to the main body ECU 31. The main body ECU 31 that has received the unlock command drives the door lock device 26 to unlock the locked door lock.

  Further, the electronic key system of this example includes a locking / unlocking stop system (locking / unlocking stop function) that stops locking / unlocking of the door lock by a key-free function at a predetermined place. By the way, in this example, since the key-free function unlocks the door lock when the outside verification is established and locks the door lock when the outside identification is not established, the driver who carries the electronic key 1 performs the work such as car washing around the vehicle 2. When doing so, the entry and exit to the outside communication area A1 is repeated. For this reason, the vehicle 2 repeats the establishment and non-establishment of the verification outside the vehicle, thereby repeating the unlocking and locking of the door lock, and the unlocking and unlocking of the door lock not intended by the driver is performed. Therefore, the locking / unlocking stop function of this example works to prevent unintentional locking / unlocking of the door lock. The locking / unlocking stop system works when the vehicle 2 is parked.

  The vehicle 2 uses a global positioning system (GPS), an acceleration sensor, an autonomous navigation device such as a gyro, etc., and displays a map on the display 40a for the driver to display the current position and purpose. A navigation system 40 is provided for guiding a travel route to the ground. This navigation system 40 has a function as a registration means for registering an automatic locking / unlocking operation stop location, which is a location where it is desired to stop locking / unlocking the door lock by the key-free function. That is, the driver selects, for example, a car wash station from the map displayed on the display 40a of the navigation system 40 as a place where the door lock is to be stopped, and performs a registration operation on the registration operation unit. Register where automatic locking / unlocking operation stops. When the automatic locking / unlocking operation stop location is selected, the navigation system 40 outputs position information including the latitude and longitude of the location to the main body ECU 31. Further, the navigation system 40 continuously outputs the current position information of the vehicle 2 to the main body ECU 31. The place (position information) where the door lock / unlock is to be stopped is information having a certain area (for example, a radius of several tens of meters) from the input position.

  The main body ECU 31 is provided with a locking / unlocking stop determining unit 31b as a determining means for determining whether to stop locking / unlocking the door lock by the key-free function. First, the locking / unlocking stop determination unit 31b stores the position information output from the navigation system 40 every time a registration operation is performed on the registration operation unit of the navigation system 40 in the memory 31a as an automatic locking / unlocking operation stop location. . The memory 31a functions as a storage unit. Then, when the lock / unlock stop determination unit 31b receives a signal from the shift ECU 33 that the shift position is parked, the lock / unlock stop determination unit 31b determines that the vehicle 2 is parked and determines whether or not it is a place where automatic locking / unlocking operation is stopped. to decide. That is, the locking / unlocking stop determination unit 31b determines whether the current position information of the vehicle 2 input from the navigation system 40 is an automatic locking / unlocking operation stop location stored in the memory 31a, for example, a registered car wash place. To do.

  In addition, the verification ECU 21 is provided with a lock / unlock stop execution unit 21b that executes a lock / unlock stop of the door lock by a key-free function. The locking / unlocking stop execution unit 21b functions as locking / unlocking operation stopping means. When the locking / unlocking stop determining unit 31b determines that the current position of the vehicle 2 is the automatic locking / unlocking operation stop location, the locking / unlocking stop determining unit 31b issues a locking / unlocking stop command to execute the locking / unlocking stop mode (key-free function disabled state). It outputs to the locking / unlocking stop execution part 21b. When the locking / unlocking stop command is input, the locking / unlocking stop execution unit 21b transmits the request signal Srq to the outside communication area A1 where the request signal Srq is normally transmitted to the outside communication area A1 in the locking / unlocking stop mode. Stop. For this reason, outside vehicle collation is not performed and the door lock locking / unlocking associated with outside vehicle collation is not performed.

  Here, since the door lock of this example can be locked and unlocked by the wireless door lock function, the wireless door lock function is used to lock and unlock the door in the lock / unlock stop mode. When the door is opened and closed, the verification ECU 21 transmits a request signal Srq to the in-vehicle communication area A2 and tries to check the inside of the vehicle. For this reason, in-vehicle collation can be established even in the locking / unlocking stop mode, and the engine can be started by the key-free engine start system. When receiving a signal from the shift ECU 33 that the shift position is other than parking while the engine is running, the locking / unlocking stop determining unit 31b determines that the vehicle 2 is in a traveling state and cancels the locking / unlocking stop mode. That is, the locking / unlocking stop determining unit 31b outputs a locking / unlocking stop release command to the locking / unlocking stop executing unit 21b. The locking / unlocking stop execution unit 21b transmits the request signal Srq as originally.

  Next, the processing operation of the vehicle 2 when the vehicle 2 arrives at a car wash location registered in advance as an automatic locking / unlocking operation stop location will be described with reference to the flowchart shown in FIG. In this example, it is assumed that the vehicle 2 is heading for the car wash. In addition, this car wash place is registered in advance in the memory 31a of the main body ECU 31 as an automatic locking / unlocking operation stop location.

  As shown in FIG. 3, the vehicle 2 determines whether or not the vehicle 2 is in a parked state (step S1). That is, the locking / unlocking stop determination unit 31b determines that the vehicle is in the parking state if the signal of the shift position received from the shift ECU 33 is parking, and determines that the vehicle is in the traveling state, that is, not in the parking state, if not parking. When it is determined that the vehicle 2 is not in the parking state (step S1: NO), the vehicle 2 waits until it is determined that the vehicle is in the parking state. When the shift position signal received from the shift ECU 33 is other than parking, the locking / unlocking stop determination unit 31b stands by until the parking state is reached.

  On the other hand, when it is determined that the vehicle 2 is in the parking state (step S1: YES), the current position information is acquired (step S2). That is, the locking / unlocking stop determination unit 31b acquires the position information from the navigation system 40 when the shift position signal received from the shift ECU 33 is parking. Then, the vehicle 2 determines whether or not the current position of the vehicle 2 is an automatic locking / unlocking operation stop location (step S3). That is, the locking / unlocking stop determining unit 31b calculates an automatic locking / unlocking operation stop location having a radius of several tens of meters from the position information stored in the memory 31a, and the acquired position information of the current vehicle 2 is the automatic locking / unlocking operation stop. Judge whether it is included in the place. When the vehicle 2 determines that the vehicle 2 is not at the place where the automatic locking / unlocking operation is stopped (step S3: NO), the process is terminated. That is, if the current position information of the vehicle 2 does not coincide with the automatic locking / unlocking operation stop location, the locking / unlocking stop determination unit 31b ends the process because normal locking / unlocking of the door lock may be performed.

  On the other hand, when the vehicle 2 determines that the vehicle 2 is at the automatic locking / unlocking operation stop location (step S3: YES), the vehicle 2 executes the locking / unlocking stop mode (step S4). That is, when the current position information of the vehicle 2 coincides with the automatic locking / unlocking operation stop location, the locking / unlocking stop determining unit 31b executes the locking / unlocking stop mode to stop the locking / unlocking of the door lock. At this time, the locking / unlocking stop determination unit 31b outputs a locking / unlocking stop command to the locking / unlocking stop execution unit 21b. The locking / unlocking stop execution unit 21b to which the locking / unlocking stop command is input stops the transmission of the request signal Srq by the outside LF transmitter 22. For this reason, outside vehicle collation is not performed and the door lock locking / unlocking associated with outside vehicle collation is not performed. In this state, for example, as shown in FIG. 2, even if the driver moves around the vehicle 2 and repeatedly enters and leaves the outside communication area A1, the door lock is not unlocked or unlocked. Unintentional locking and unlocking of the door lock can be suppressed. Further, in this locking / unlocking stop mode, the driver can lock or unlock the door lock by operating the locking button 14 or the unlocking button 15.

  The vehicle 2 determines whether or not it is in a running state (step S5). In other words, the locking / unlocking stop determining unit 31b determines that the engine is in an operating state and is in a running state if the shift position signal received from the shift ECU 33 is other than parking. Judge that it is not. When it is determined that the vehicle 2 is not in the traveling state (step S5: NO), the vehicle 2 waits until it is determined that the vehicle is in the traveling state. When the shift position signal received from the shift ECU 33 is parking, the locking / unlocking stop determination unit 31b waits until the traveling state is achieved.

  On the other hand, when it is determined that the vehicle 2 is in the traveling state (step S5: YES), the locking / unlocking stop mode is canceled (step S6). That is, when the shift position signal received from the shift ECU 33 is other than parking, the locking / unlocking stop determining unit 31b determines that it is no longer necessary to stop the locking / unlocking of the door lock, and cancels the locking / unlocking stop mode. Therefore, the process ends.

  Now, the driver can register in the vehicle 2 an automatic locking / unlocking operation stop location where he / she wants to stop locking / unlocking the door lock by the key-free function. Then, when the vehicle 2 is parked, if it is determined that the current position of the vehicle 2 is the automatic locking / unlocking operation stop location, the vehicle 2 is stopped by stopping the transmission of the request signal Srq by the outside LF transmitter 22. Automatically stops locking and unlocking the door using the key-free function. For this reason, when the driver registers, for example, a car wash station or the like as an automatic locking / unlocking operation stop location, locking / unlocking of the door lock by the key-free function is automatically stopped. Therefore, even if the driver moves around the vehicle 2 at a car wash or the like, it is possible to prevent unintentional locking and unlocking of the door lock.

As described above, according to the embodiment described above, the following effects can be obtained.
(1) If the automatic locking / unlocking operation stop location where the lock and unlocking of the door lock by the key-free function is to be stopped is registered in the memory 31a, the locking / unlocking stop determining unit 31b positions the vehicle 2 at the automatic locking / unlocking operation stop location. When it is determined that the lock / unlock stop execution unit 21b has stopped, the door-lock lock / unlock using the key-free function is stopped. For this reason, when the vehicle 2 is positioned at the automatic locking / unlocking operation stop location, the door locking / unlocking operation by the key-free function is automatically stopped, so that it is not necessary to perform the door locking / unlocking stop operation every time. Therefore, the door lock locking / unlocking stop operation by the key-free function can be performed with ease, and the convenience can be improved.

  (2) Since the navigation system 40 provided in the vehicle 2 is used, even if the vehicle 2 does not go to the place where the lock and unlocking of the door lock by the key-free function is desired to be stopped, the automatic unlocking and unlocking is performed based on the map information registered in the navigation system 40. The stop location can be registered in advance. For this reason, when registering the automatic locking / unlocking operation stop location, it is not necessary to actually go to the automatic locking / unlocking operation stop location, so that there is no inconvenience in the registration work.

  (3) By stopping the transmission of the request signal Srq from the vehicle 2, the door lock / unlock by the unintended key-free function is stopped. Further, in this case, useless transmission of radio signals is not necessary, so that it is possible to reduce power consumption required for this communication and to save energy.

  (4) By stopping the request signal Srq transmitted outside the vehicle from the radio signal from the vehicle 2, the door lock and unlocking by the unintended key-free function is prevented, and the in-vehicle device in the vehicle, for example, the engine Starting and the like can be performed as usual.

  (5) Is it a place where automatic locking / unlocking operation is stopped by determining whether or not it is an automatic locking / unlocking operation stop location that stops locking / unlocking of the door lock by the key-free function? Since it is not necessary to wastefully execute the determination of whether or not, the acquisition of the current position information can be reduced as much as possible for this determination.

  (6) Since a certain range including the position information registered in the memory 31a is used as an automatic locking / unlocking operation stop location, the locking / unlocking of the door lock by the key-free function is stopped. It is only necessary to register the position information of one place in the site, and the locking and unlocking of the door lock can be stopped without registering a plurality of position information in the same site.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to FIG. This embodiment is different from the first embodiment in the registration means for the vehicle 2 to register the automatic locking / unlocking operation stop location. Hereinafter, a description will be given focusing on differences from the first embodiment. Note that the electronic key system of this embodiment has substantially the same configuration as the electronic key system of the first embodiment shown in FIG.

  As shown in FIG. 4, the vehicle 2 is provided with a registration button 41 and a global positioning system (GPS) 42 in place of the navigation system 40 of the first embodiment. The registration button 41 functioning as a registration operation means is composed of, for example, a momentary push button or a display button of a touch panel type in-vehicle display, and registers to store the current position of the vehicle 2 in the memory 31a at the time of operation. The command is output to the locking / unlocking stop determination unit 31b. Further, the GPS 42 functioning as a location information acquisition unit sequentially monitors the current position of the vehicle 2 and continuously outputs the current position information of the vehicle 2 to the main body ECU 31.

  When it is confirmed that the registration button 41 has been operated, the locking / unlocking stop determining unit 31b acquires the current position at this time from the GPS 42, and stores the acquired position information in the memory 31a as an automatic locking / unlocking operation stop location. Then, the locking / unlocking stop determination unit 31b compares the current position of the vehicle 2 that can be known from the GPS 42 with the position information registered in the memory 31a when the vehicle 2 is parked, as in the first embodiment. Is determined to be at the automatic locking / unlocking operation stop location, and if the vehicle 2 is positioned at the automatic locking / unlocking operation stop location, the locking / unlocking stop mode is set to stop the door lock locking / unlocking. Run.

According to the present embodiment, in addition to the functions and effects (1) and (3) to (6) of the first embodiment, the following functions and effects can be achieved.
(7) Instead of the navigation system 40, the door lock can be locked and unlocked with a simple configuration of the registration button 41 and the GPS 42.

  (8) When the driver performs a registration operation on the registration button 41, the position information obtained from the GPS 42 is registered in the memory 31a. Therefore, the registration is performed when the location where the vehicle 2 is currently located is set as the automatic locking / unlocking operation stop location. By performing a registration operation on the button 41, it is possible to immediately register as a place where automatic locking / unlocking operation is stopped. In addition, the position information of the current position for determining whether or not the automatic locking / unlocking operation stop location can be acquired by the GPS 42.

  (9) Since the GPS 42 is used as the location information acquisition means, location information consisting of latitude and longitude can be adopted as location information, and automatic locking / unlocking operation stop locations can be registered with high location accuracy. It can be determined whether or not it is a lock operation stop location.

(Third embodiment)
Hereinafter, a third embodiment of the present invention will be described with reference to FIG. This embodiment is different from the second embodiment in the location information acquisition means for the vehicle 2 to acquire location information. Hereinafter, the difference from the second embodiment will be mainly described. Note that the electronic key system of this embodiment has substantially the same configuration as the electronic key system of the first embodiment shown in FIG.

  As shown in FIG. 4, the vehicle 2 is provided with a camera 43 instead of the GPS 42 described above. The camera 43 that functions as a location information acquisition unit and an imaging unit is composed of a CCD camera, for example, and is used as a back monitor that captures the rear of the vehicle 2. When the vehicle 2 enters the parking state, the camera 43 continuously outputs image information captured as current location information of the vehicle 2 to the main body ECU 31. When the registration button 41 is operated, the locking / unlocking stop determining unit 31b causes the memory 31a to store the image information input from the camera 43 as an automatic locking / unlocking operation stop location.

  And the locking / unlocking stop determination part 31b determines whether it is an automatic locking / unlocking operation stop place, if the vehicle 2 will be in a parking state similarly to 1st Embodiment. In the case of this example, the locking / unlocking stop determination unit 31b compares the current captured image acquired from the camera 43 with the registered image in the memory 31a, and determines whether these images match. As the image comparison at this time, the parking position does not always match every time. Therefore, for example, the center portion of the photographed image is cut out, and whether the cut-out image matches the registered image is determined to determine whether the images match. To do. And if the locking / unlocking stop determination part 31b confirms that the matching of an image is materialized, in order to stop locking / unlocking of a door lock, it will perform locking / unlocking stop mode.

If it does in this way, in addition to the effect of (1) and (3)-(5) of 1st Embodiment, there can exist the following effects.
(10) In place of the navigation system 40, the door lock can be locked and unlocked with a simple configuration of the registration button 41 and the camera 43.

  (11) When the driver performs a registration operation on the registration button 41, the position information obtained from the camera 43 is registered in the memory 31a. Therefore, when the location where the vehicle 2 is currently located is desired to be the automatic locking / unlocking operation stop location. By performing a registration operation on the registration button 41, it is possible to immediately register as a place where automatic locking / unlocking operation is stopped. Further, the position information of the current position for determining whether or not the automatic locking / unlocking operation stop location can be acquired by the camera 43.

  (12) Since the camera 43 is used as the location information acquisition means, the image information captured by the camera 43 can be adopted as the location information. For example, even in locations where GPS radio waves do not reach, automatic locking / unlocking operation stop location Can be set. Therefore, it is difficult to register the location where the automatic locking / unlocking operation stop is executed, and it can be said that the effect is very high in this respect.

In addition, the said embodiment can be implemented with the following forms which changed this suitably.
-In 3rd Embodiment, you may employ | adopt a reading code as image information which said camera 43 image | photographs. Specifically, a reading code indicating a place where the automatic locking / unlocking operation is stopped is placed at a place where the automatic locking / unlocking operation is stopped. For example, a QR code (registered trademark) is used as the reading code. And the camera 43 image | photographs a reading code as image information, and the locking / unlocking stop determination part 31b determines whether it is an automatic locking / unlocking operation stop place from this image | photographed reading code | cord | chord. In this way, the camera 43 shoots a reading code that is set in advance at the automatic locking / unlocking operation stop location, and determines from the reading code that the automatic locking / unlocking operation stop location is detected. It is possible to immediately determine that the locking / unlocking operation is stopped. Moreover, the comparison process of image information can be simplified, and it can be determined efficiently whether it is a place where automatic locking / unlocking operation is stopped.

  In the above embodiment, the location information of the automatic locking / unlocking operation stop location is stored in the memory 31a of the main body ECU 31, but it may be stored in another location such as the memory 21a of the verification ECU 21.

In the above embodiment, the lock / unlock stop determination unit 31b is functionally provided in the main body ECU 31, but may be provided in the verification ECU 21.
In the above-described embodiment, the electronic key system in which the outside communication area A1 is formed around the vehicle 2 is adopted, but the outside key communication area may be formed only in the vicinity of the driver's seat of the vehicle 2. .

  In the above embodiment, whether or not the vehicle 2 is in the parked state is determined based on whether or not the shift position is parked, but is determined not only based on the shift position but also whether or not there is a parking brake, whether or not there is a vehicle speed, etc. You may do it. Moreover, you may combine these.

In the above embodiment, the key-free engine start system is provided, but a configuration in which this system is omitted may be employed.
In the above embodiment, it is determined whether or not the automatic locking / unlocking operation stop location is in the parking state, but it is determined whether or not the automatic locking / unlocking operation stop location is also in the running state. It may be. In this way, the locking / unlocking stop mode can be executed when the vehicle 2 enters the range that is the automatic locking / unlocking operation stop location before parking.

  In the first embodiment and the second embodiment, the location information stored in the memory 31a is regarded as a place where the automatic locking / unlocking operation is stopped within a radius of several tens of meters. If it can be recognized, the entire facility (site) may be regarded as a place where automatic locking / unlocking operation is stopped.

  -The frequency of each communication used in the electronic key system may be any frequency radio wave. Further, with the key-free function, it is not necessary to change the frequency of each radio signal between the communication from the vehicle 2 to the electronic key and the communication from the electronic key 1 to the vehicle 2, and these may be the same.

  In the above embodiment, the request signal Srq transmitted from the outside LF transmitter 22 is stopped in the locking / unlocking stop mode, but the request signal Srq transmitted from the in-vehicle LF transmitter 23 is also stopped. Good. In this way, it is possible to reduce the power consumption required for this communication, and it is possible to save energy.

  In the above-described embodiment, the door lock locking / unlocking stop processing may be, as a definition, execution of ID verification availability determination, or actual operation of door lock locking (for example, start of door lock motor operation). ) But either.

  -In the said embodiment, invalidation of an automatic locking / unlocking function is not necessarily limited to not performing locking and unlocking of a door lock once. For example, the first several times of the door lock / unlock operation may be allowed, and the lock / unlock mode may be entered on condition that the lock / unlock operation is continuously executed within a certain time.

Next, the technical idea that can be grasped from the embodiment will be described together with the effects.
(A) In the locking / unlocking function stop device of the electronic key system according to any one of claims 1 to 7, the determination means is the automatic locking / unlocking operation stop location only when the vehicle stops. An electronic key system locking / unlocking function stop device characterized by determining whether or not.

  According to this configuration, the determination as to whether or not it is an automatic locking / unlocking operation stop location is performed only when the vehicle stops, so that the determination as to whether or not the automatic locking / unlocking operation stop location is not performed unnecessarily. Therefore, the activation of the location information acquisition means can be reduced as much as possible for this determination.

  (B) In the locking / unlocking function stopping device for an electronic key system according to claim 2 or 4, the stopping means defines a certain range including the position information registered in the storage means as the automatic locking / unlocking operation stop location. A locking / unlocking function stopping device for an electronic key system.

  According to this configuration, the door lock / unlock is stopped with a certain range including the position information registered in the storage means as the automatic lock / unlock operation stop location. It is only necessary to register position information at one location, and the automatic locking / unlocking function can be invalidated without registering a plurality of position information.

  (C) In the locking / unlocking function stop device for an electronic key system according to any one of claims 1 to 5, the stop means does not transmit the reply request from the vehicle to the outside of the vehicle. A locking / unlocking function stopping device for an electronic key system, wherein the locking / unlocking function is invalidated.

  According to this configuration, by stopping a radio signal transmitted from the vehicle to the outside of the vehicle, an unintended automatic locking / unlocking function is invalidated, and in-vehicle devices such as an engine such as an engine can be started normally. it can. Further, in this case, useless transmission of radio signals is not necessary, so that it is possible to reduce power consumption required for this communication and to save energy.

  (D) In the locking / unlocking function stopping device of the electronic key system according to claim 5, a reading code indicating the automatic locking / unlocking operation stop location is set in advance in the automatic locking / unlocking operation stop location, and the imaging means includes: The electronic code system locking / unlocking function stop device according to claim 1, wherein the reading code is photographed as image information, and the determination unit determines whether or not the automatic locking / unlocking operation stop location is based on the read code.

  According to this configuration, the image pickup means captures a reading code set in advance at a place where automatic locking / unlocking operation is stopped, and determines from the reading code that it is a place where automatic locking / unlocking operation is stopped. It is possible to immediately determine that the locking / unlocking operation is stopped. Moreover, the comparison process of image information can be simplified, and it can be determined efficiently whether it is a place where automatic locking / unlocking operation is stopped.

  DESCRIPTION OF SYMBOLS 1 ... Electronic key, 2 ... Vehicle, 11 ... Communication control part, 11a ... Memory, 12 ... LF reception part, 12a ... LF reception antenna, 13 ... RF transmission part, 13a ... RF transmission antenna, 14 ... Lock button, 15 ... Unlock button, 21 ... Verification ECU, 21a ... Memory, 21b ... Unlock / unlock execution unit, 22 ... Outside LF transmitter, 22a ... Outside LF transmitter antenna, 23 ... In-car LF transmitter, 23a ... In-car LF transmitter antenna, 24 DESCRIPTION OF SYMBOLS ... RF receiver, 24a ... RF receiving antenna, 25 ... Courtesy switch, 26 ... Door lock device, 27 ... Engine switch, 30 ... In-vehicle LAN, 31 ... Main body ECU, 31a ... Memory, 31b ... Locking / unlocking stop determination unit, 32 ... Engine ECU, 33 ... Shift ECU, 40 ... Navigation system, 40a ... Display, 41 ... Registration button, 42 ... All Sphere positioning system (GPS), 43 ... camera, A1 ... exterior communication area, A2 ... interior communication area, Sl ... lock signal, Sid ... ID code signal, Srq ... request signal, Sul ... unlock signal.

Claims (7)

When the electronic key receives a reply request for the ID code transmitted from the vehicle outside the vehicle, the electronic key returns the ID code to the vehicle to perform ID verification, and when the ID verification is switched to establishment, the door lock is activated. In the locking / unlocking function stopping device of the electronic key system having an automatic locking / unlocking function that is automatically unlocked and, conversely, the door lock is automatically locked when the ID verification is not established,
A registration unit that functions when registering an automatic locking / unlocking operation stop location for invalidating the automatic locking / unlocking function in the vehicle;
Determination means for determining whether or not the vehicle is located at the automatic locking / unlocking operation stop location;
The electronic key system according to claim 1, further comprising a locking / unlocking operation stop unit that invalidates the automatic locking / unlocking function when the determination unit determines that the vehicle is located at the automatic locking / unlocking operation stop location. Lock function stop device. In the locking / unlocking function stopping device of the electronic key system according to claim 1,
The registration means is a navigation system provided in the vehicle, and when a location where the automatic locking / unlocking function is to be stopped is selected in the navigation system, the location information is used as the automatic locking / unlocking operation stop location. Registered with
The determination means compares the location information related to the automatic locking / unlocking operation stop location registered in the vehicle with the location information of the current position obtained from the navigation system, so that the vehicle becomes the automatic locking / unlocking operation stop location. An electronic key system locking / unlocking function stop device characterized by determining whether or not the electronic key system is located. In the locking / unlocking function stopping device of the electronic key system according to claim 1 or 2,
The registration means comprises operating means operated when registering a place where the automatic locking / unlocking function is to be stopped, and location information acquiring means capable of acquiring location information of the current position of the vehicle, and the automatic locking / unlocking function When the vehicle is located at a place where it is desired to stop and the operation means is operated, the location information obtained from the location information acquisition means at this time is registered in the vehicle as the automatic locking / unlocking operation stop location,
The determination means compares the location information on the automatic locking / unlocking operation stop location registered in the vehicle with the location information on the current position of the vehicle obtained from the location information acquisition means, so that the vehicle A device for stopping the locking / unlocking function of an electronic key system, characterized in that it is determined whether or not it is located at a lock operation stop location. In the locking / unlocking function stopping device of the electronic key system according to claim 3,
The location information acquisition means is a global positioning system provided in the vehicle,
When the operation means is registered, the registration means registers the position information acquired by the global positioning system in the vehicle as the automatic locking / unlocking operation stop location,
The determination means compares the position information on the current position of the vehicle obtained from the global positioning system with the position information on the automatic locking / unlocking operation stop location registered in the vehicle, so that the vehicle An apparatus for stopping a locking / unlocking function of an electronic key system, characterized in that it is determined whether or not the locking / unlocking operation stop position is located. In the locking / unlocking function stopping device of the electronic key system according to claim 3,
The location information acquisition means is an imaging means provided in the vehicle,
When the operation means is registered, the registration means registers the image information captured by the imaging means in the vehicle as the automatic locking / unlocking operation stop location,
The determination unit compares the captured image of the current position of the vehicle acquired from the imaging unit with a registered image of the automatic locking / unlocking operation stop location, so that the vehicle is positioned at the automatic locking / unlocking operation stop location. An electronic key system locking / unlocking function stopping device characterized by determining whether or not In the locking / unlocking function stopping device of the electronic key system according to any one of claims 1 to 5,
The locking / unlocking function stopping device for an electronic key system, wherein the locking / unlocking operation stopping means disables the automatic locking / unlocking function by not transmitting the reply request from the vehicle. In the locking / unlocking function stopping device of the electronic key system according to any one of claims 1 to 5,
The locking / unlocking operation stopping means performs the ID verification outside the vehicle as usual, but disables the automatic locking / unlocking function by not performing the locking / unlocking operation regardless of whether the verification is established or not. A locking / unlocking function stopping device for an electronic key system.

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