JP2005029044A - Window shutter for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blackout shutter used for a vehicle window switchable between a see-through or a non-see-through state by being controlled from outside the vehicle before a user opens the vehicle door to get in or even after the user got out of the vehicle and closed the door. <P>SOLUTION: When the vehicle door is locked and the liquid crystal shutter 7 is in the non-see-through state in the vehicle equipped with a keyless entry system, an unlock request signal is authenticated by a keyless ECU 3 when the unlock request signal from a transmitter 1 is transmitted by an antenna 2. When the signal is judged to be a signal transmitted from the transmitter of the vehicle based on the authentication result, a door unlock command is transmitted to a door lock actuator 5 by a body control ECU 4, and a voltage application command is transmitted to a voltage source 12 by a liquid crystal shutter ECU 6. Thus, the liquid crystal shutter 7 is switched from the non-see-through state to the see-through state. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a shutter for a dark curtain used for a vehicle window.

  When a black curtain is put on the window of the vehicle, it is possible to restrict the direct sunlight that is inserted into the passenger compartment in the vehicle and to secure a private space in the passenger compartment. Here, as a method of applying a dark curtain, a method of simply applying a dark film on the window is also conceivable. In addition to transparent glass, there has been proposed one that uses dark glass that can be opened and closed by a power window device as a shutter.

  In such a shutter for a dark curtain, it is possible to switch between a see-through state and a non-see-through state of the shutter by a switch operation of a user who is in the vehicle. In addition, there is a vehicle equipped with a safety device that automatically switches the shutter to a see-through state when the vehicle is running (see, for example, Patent Document 1).

  On the other hand, in recent vehicles, instead of locking or unlocking a door with a key, a keyless entry system in which a user operates a portable small transmitter that transmits radio waves or infrared rays to lock or unlock the door. It has been put into practical use.

  Furthermore, even if the user does not operate the transmitter, the vehicle confirms the presence of the smart key by carrying a portable device called a smart key configured to respond to the interrogation signal transmitted from the in-vehicle antenna. Thus, a smart key system that automatically locks or unlocks the door has been put into practical use.

  In the above-described smart key system, the presence of a smart key within a predetermined detection range is always confirmed by periodically transmitting an interrogation signal for the smart key from the in-vehicle antenna. When the vehicle approaches the vehicle for boarding and enters the detection range, the response signal generated by the smart key is received to recognize the presence of the smart key. Then, authentication of the response signal is performed, and when it is confirmed that the smart key is for the vehicle, the door is automatically unlocked or the standby mode for unlocking (the user sets the door knob) When the user touches or the user holds the door knob, the door is unlocked).

  In addition, in such a smart key system that periodically sends an interrogation signal, a switch is provided near the door knob on the outside of the vehicle, etc., after the user gets off and closes the door. As a result of authentication of the response signal, when it is determined that the response signal from the smart key for the vehicle is received, the door of the vehicle is locked when the switch is pressed.

  Some vehicles do not have the above switch. In the smart key system mounted on such a vehicle, when the user carrying the smart key closes the door after getting off and moves out of the detection range, the antenna does not receive a response signal from the smart key. In this case, the door is automatically locked.

In addition, in order to reduce battery power consumption, the interrogation signal from the in-vehicle antenna is not transmitted periodically, but only when the switch provided near the door knob on the outer surface of the vehicle is pressed. Some smart key systems transmit signals.
JP-A-8-259591

  The vehicle window shutter according to the prior art assumes shutter switching control when the user is in the vehicle, and the shutter cannot be switched from the see-through state or the see-through state from the outside of the vehicle. It has become.

  Therefore, for example, even if a suspicious person is lurking in a vehicle whose shutter is in a see-through state, a user who is trying to get on the vehicle cannot see the inside of the vehicle from the outside. Until the door is opened, the suspicious person cannot be found, and danger may be encountered.

  In addition, even when the user gets off the vehicle after parking the vehicle and finds that something has been left in the vehicle after the door is further locked, It is necessary for the user to open the door again to check the inside, which is troublesome for the user.

  On the other hand, systems that allow users to control door locking and unlocking from the outside of the vehicle, such as keyless entry systems and smart key systems, have been put into practical use. The above problems cannot be solved simply by installing a keyless entry system or a smart key system.

  The present invention has been made in view of such a problem, and in a shutter for a dark curtain provided in a window of a vehicle, before the user opens the door of the vehicle for getting on or gets off the vehicle and closes the door. It is an object of the present invention to provide a window shutter that can switch between a fluoroscopic state and a non-transparent state even from the outside of the vehicle.

  The vehicle window shutter according to claim 1, which is made to achieve the above object, can put a black curtain on the window by switching between the see-through state and the non-see-through state.

  In addition, when a vehicle equipped with the shutter receives a signal transmitted from a portable terminal carried by the user, the vehicle authenticates the signal, and locks or unlocks the door of the vehicle as a result of the authentication. If it is determined that the signal is transmitted from a mobile terminal set in such a way, a command is issued to the door lock actuator to lock or unlock the door, or to switch to the standby mode for unlocking. A locking device is provided.

  Then, when the automatic locking / unlocking device receives a signal from the portable terminal, the shutter switches between the fluoroscopic state and the non-transparent state based on the result of authentication by the automatic locking / unlocking device.

  Therefore, according to the shutter of the first aspect, the user can switch the see-through / non-see-through state of the shutter from the outside of the vehicle.

  Next, a mode suitable for carrying out the invention described in claim 1 will be described below.

  According to a second aspect of the present invention, in the shutter according to the first aspect, the automatic locking / unlocking device is a keyless entry system.

  In other words, the keyless entry system transmits a lock / unlock request signal (signal by radio waves, infrared rays, etc.) from the transmitter to the vehicle by the user operating a dedicated portable transmitter, and the in-vehicle device side transmits the signal. In this system, the door of the vehicle is locked and unlocked by performing authentication.

  And since the shutter of Claim 2 switches a see-through state and a non-permeability state based on the authentication result of the said keyless entry system, a user can switch the see-through / non-permeability state of the said shutter from the outer side of a vehicle. It will be possible.

  Next, the shutter according to claim 3 is characterized in that, in the shutter according to claim 2, at least when the door of the vehicle is unlocked by the operation of the transmitter, the shutter is switched from the non-transparent state to the transparent state. It is a shutter which has.

  That is, when a vehicle having the shutter according to claim 3 receives a door unlocking request signal transmitted from a transmitter carried by a user, the vehicle performs authentication of the unlocking request signal and performs authentication. As a result, when it is determined that the signal is transmitted from the transmitter for the vehicle, a keyless entry system is provided that issues a command to the door lock actuator to unlock the door.

  Then, when the user operates the transmitter to transmit the unlock request signal, the shutter is switched from the non-permeability state to the fluoroscopy state based on the result of authentication by the keyless entry system.

  Therefore, according to the shutter of the third aspect, it is possible to visually recognize the inside of the vehicle by switching the shutter from the non-transparent state to the transparent state before the user opens the door of the vehicle for getting on.

  Next, the shutter according to claim 4 is characterized in that, in the shutter according to claim 2, at least when the door of the vehicle is locked by the operation of the transmitter, the state is switched from the see-through state to the non-see-through state. It has a shutter.

  That is, when the vehicle provided with the shutter according to claim 4 receives the door lock request signal transmitted from the transmitter carried by the user, the vehicle authenticates the lock request signal, and the authentication result is obtained. When it is determined that the signal is transmitted from the transmitter for the vehicle, a keyless entry system is provided that issues a command to the door lock actuator to lock the door.

  Then, when the user operates the transmitter to transmit the lock request signal, the shutter is switched from the see-through state to the non-see-through state based on the authentication result by the keyless entry system.

  Therefore, according to the shutter of the fourth aspect, when the user gets off the vehicle, closes the door, and then operates the transmitter to transmit the lock request signal, the shutter is changed from the see-through state to the non-see-through state. Until then, since the shutter is in a see-through state, the interior of the vehicle can be seen even after the vehicle is exited and the door is closed.

  Next, the shutter according to claim 5 is the shutter according to claim 1, wherein the automatic locking / unlocking device is a smart key system.

  That is, the smart key system transmits a call signal to a predetermined detection range from an antenna mounted on the vehicle (usually the antenna is mounted on each door), and responds to the call signal. When the response signal from the smart key is received, the response signal is authenticated, and then the vehicle door is locked or unlocked or switched to a standby mode for unlocking.

  Since the shutter according to claim 5 switches between the see-through state and the non-see-through state based on the authentication, the user can switch the see-through / non-see-through state of the shutter from the outside of the vehicle.

  Next, the shutter according to claim 6 is characterized in that, in the shutter according to claim 5, when the door of the vehicle is unlocked based on at least the authentication, the shutter is switched from the non-transparent state to the transparent state. It has a shutter.

  That is, a vehicle equipped with the shutter according to claim 6 periodically transmits an interrogation signal to a predetermined detection range in the vicinity of the antenna from at least one antenna mounted on the vehicle. The presence of a smart key in the vicinity is constantly confirmed, and when the user carries a smart key that responds to the interrogation signal and enters the detection range, the presence of the smart key is confirmed by the response signal transmitted from the smart key. When it is determined that the signal is transmitted from the smart key for the vehicle as a result of recognition and authentication of the response signal, the door lock actuator is instructed to unlock the door, or the door is unlocked Standby mode for (when the user touches the doorknob or the user grips the doorknob, command the door lock actuator It is equipped with a smart key system for automatically switching to the state) to perform the unlocking of the door out.

  Then, when the user carrying the smart key enters the detection range, the shutter switches from the non-transparent state to the transparent state based on the result of authentication by the smart key system.

  Therefore, according to the shutter of the sixth aspect, it is possible to visually recognize the inside of the vehicle by switching the shutter from the non-permeable state to the fluoroscopic state before the user opens the door of the vehicle for getting on.

  Next, the shutter according to claim 7 is characterized in that, in the shutter according to claim 5, at least when the vehicle door is locked based on the authentication, the shutter state is switched from the see-through state to the non-see-through state. It is a shutter that is.

  That is, a vehicle provided with the shutter according to claim 7 periodically transmits an interrogation signal to a predetermined detection range near the antenna from at least one antenna mounted on the vehicle, When a response signal is received from a smart key that responds to an interrogation signal, authentication is performed, and when it is determined that the signal is transmitted from the smart key for the vehicle as a result of the authentication, near the door knob on the outside of the vehicle For example, when a switch provided on the outer surface of the vehicle is pressed, a smart key system is provided to lock the door by issuing a command to the door lock actuator.

  When the switch is pressed by the user when it is determined that the response signal from the smart key for the vehicle is received as a result of authentication by the smart key system, the shutter is in a fluoroscopic state. Switches to an opaque state.

  Therefore, according to the shutter of claim 7, when the user gets off the vehicle, closes the door, and presses the switch for locking, the shutter is changed from the see-through state to the non-see-through state. Since the shutter is in a see-through state, the inside of the vehicle can be visually recognized even after the vehicle is exited and the door is closed.

  Next, the shutter according to claim 8 is characterized in that, in the shutter according to claim 5, when the door of the vehicle is released based on at least the authentication, the shutter is switched from the non-transparent state to the transparent state. It is a shutter that is.

  In other words, a vehicle equipped with the shutter according to claim 8 is provided with a switch for transmitting an interrogation signal on the outer surface of the vehicle such as near the door knob on the outside of the vehicle, and the switch is activated when the door is locked. When the key is pressed, the presence of a smart key in the vicinity of the vehicle is confirmed by transmitting an interrogation signal from a vehicle-mounted antenna to a predetermined detection range, and from the smart key that responds to the interrogation signal If it is determined that the signal is transmitted from the smart key for the vehicle as a result of receiving the response signal and authenticating the response signal, the door is unlocked by issuing a command to the door lock actuator. Or a smart key system for switching to a standby mode for unlocking the door.

  Then, when the user presses the switch when the vehicle door is locked, the shutter is switched from the non-transparent state to the transparent state based on the result of authentication by the smart key system.

  Therefore, according to the shutter of the eighth aspect, it is possible to visually recognize the inside of the vehicle by switching the shutter from the non-permeability state to the permeation state before the user opens the door of the vehicle for getting on.

  Next, the shutter according to claim 9 is characterized in that, in the shutter according to claim 5, when the vehicle door is locked based on at least the authentication, the shutter state is switched from the see-through state to the non-see-through state. is doing.

  That is, the vehicle provided with the shutter according to claim 9 is provided with a switch for transmitting an interrogation signal on the outer surface of the vehicle such as near the door knob on the outside of the vehicle, and the switch is activated when the door is unlocked. When pressed by the user, a smart key that confirms the presence of a smart key in the vicinity of the vehicle by transmitting an interrogation signal from a vehicle-mounted antenna to a predetermined detection range and responds to the interrogation signal If it is determined that the signal is transmitted from the smart key for the vehicle as a result of receiving the response signal from the mobile phone and authenticating the response signal, the door lock actuator is instructed to unlock the door. It has a smart key system for locking.

  Then, when the user presses the switch when the vehicle door is unlocked, the shutter switches from the see-through state to the non-see-through state based on the result of authentication by the smart key system. .

  Therefore, according to the shutter of claim 9, when the user gets off the vehicle, closes the door, and presses the switch for locking, the shutter is changed from the see-through state to the see-through state. Since the shutter is in a see-through state, the inside of the vehicle can be visually recognized even after the vehicle is exited and the door is closed.

  Next, a shutter according to a tenth aspect of the present invention is the shutter according to the first aspect, wherein the automatic locking / unlocking device locks the door of the vehicle when the response signal from the smart key for the vehicle is not received. This is a case of a smart key system that automatically performs.

  In other words, a vehicle equipped with the shutter according to claim 10 periodically transmits an interrogation signal to a predetermined detection range near the antenna from at least one antenna mounted on the vehicle. The presence of a smart key in the vicinity is always confirmed, and there is a smart key responding to the interrogation signal within the detection range, and the response signal is received and authenticated. After determining that the signal is transmitted from the key, if the response signal from the smart key cannot be obtained because the user carrying the smart key moves out of the detection range, the door lock actuator It is equipped with a smart key system that issues a command and automatically locks the door.

  Then, after the smart key system receives the response signal from the smart key and determines that the shutter is a response signal transmitted from the smart key for the vehicle as a result of authentication, the shutter is carried by the shutter. When a response signal cannot be obtained because the user moves out of the detection range, the fluoroscopic state is switched to the non-transparent state.

  Therefore, according to the shutter of the tenth aspect, when the user gets out of the vehicle, closes the door, and then moves away from the vicinity of the vehicle to move out of the detection range of the antenna, the shutter changes from the see-through state to the non-see-through state. Thus, until then, the shutter is in a see-through state, so that the inside of the vehicle can be seen even after the vehicle is exited and the door is closed.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIG. The embodiments of the present invention are not limited to the following Examples 1 to 3, and it goes without saying that various forms can be adopted as long as they belong to the technical scope of the present invention.

  FIG. 1 is a configuration diagram showing a liquid crystal shutter interlocked with a keyless entry system.

  The liquid crystal shutter 7 of FIG. 1 is embedded in a window (not shown) on the front, side or rear surface of the vehicle and is integrated with the window. The liquid crystal shutter 7 is in a transparent state when the voltage source 12 applies a voltage based on a command signal from the liquid crystal shutter ECU 6, and is in a non-transparent state when no voltage is applied. Functions as a device.

  Further, a vehicle equipped with the liquid crystal shutter 7 includes a portable transmitter 1 that transmits a signal requesting locking or unlocking of a door, an antenna 2 that receives the signal, and a keyless device that authenticates the signal. A keyless entry system including an ECU 3, a door lock actuator 5 that locks or unlocks the door, and a body control ECU 4 that controls the door lock actuator 5 is mounted.

  Here, like a parked vehicle, when a vehicle door (not shown) is locked and the liquid crystal shutter 7 is in a non-perspective state, the user operates the transmitter 1 to unlock the vehicle. The operation when the request signal is transmitted will be described below.

  When the unlock request signal from the transmitter 1 is received by the antenna 2, the keyless ECU 3 authenticates the unlock request signal and determines whether the signal is sent from the vehicle transmitter. judge. When the keyless ECU 3 determines that the signal is sent from the vehicle transmitter as a result of authentication, the keyless ECU 3 unlocks the door (hereinafter referred to as an “unlock permission signal”). Is output. When it is determined that the signal is not sent from the vehicle transmitter, the keyless ECU 3 does not output the unlock permission signal.

  The body control ECU 4 that has received the unlocking permission signal transmits a door unlocking command to the door lock actuator 5, and the door lock actuator 5 that has received the command unlocks the door.

  On the other hand, the liquid crystal shutter ECU 6 that has received the unlocking permission signal transmits a voltage application command to the voltage source 12, and the voltage source 12 that has received the voltage applies the voltage to the liquid crystal shutter 7, so that the liquid crystal is Switch from the non-perspective state to the fluoroscopic state.

  As described above, the liquid crystal shutter 7 can be switched from the see-through state to the see-through state before the user opens the door of the vehicle for getting on, and the inside of the vehicle can be visually recognized.

  Next, when the vehicle door is unlocked and the liquid crystal shutter 7 is in a see-through state like the vehicle immediately after parking, the user operates the transmitter 1 to transmit a lock request signal to the vehicle. The operation of the liquid crystal shutter 7 will be described below.

  When the lock request signal from the transmitter 1 is received by the antenna 2, the keyless ECU 3 authenticates the lock request signal and determines whether the signal is sent from the transmitter for the vehicle. . When the keyless ECU 3 determines that the signal is sent from the vehicle transmitter as a result of the authentication, the keyless ECU 3 outputs a signal for locking the door (hereinafter referred to as a “locking permission signal”). To do. When it is determined that the signal is not sent from the vehicle transmitter, the keyless ECU 3 does not output the lock permission signal.

  The body control ECU 4 that has received the locking permission signal transmits a door locking command to the door lock actuator 5, and the door lock actuator 5 that receives the command locks the door.

  On the other hand, the liquid crystal shutter ECU 6 that has received the locking permission signal transmits a command to stop the voltage application to the voltage source 12, and the voltage source 12 receiving this command applies the voltage applied to the liquid crystal shutter 7. Is stopped to switch the liquid crystal from the see-through state to the non-see-through state.

  As described above, even after the user gets off the vehicle and closes the door, the liquid crystal shutter 7 remains transparent until the door is locked by operating the transmitter 1. Can be visually recognized.

  Next, an embodiment of a liquid crystal shutter interlocked with the smart key system will be described with reference to FIG.

  The liquid crystal shutter 7 in FIG. 2 is embedded in the vehicle window and integrated with the window, as in the first embodiment shown in FIG. 1, and the voltage source 12 is based on a command signal from the liquid crystal shutter ECU 6. When a voltage is applied, the liquid crystal is in a see-through state, and when no voltage is applied, the liquid crystal is in a non-see-through state and functions as a darkening device for the window.

  A vehicle equipped with the liquid crystal shutter 7 transmits a portable smart key 8 that responds to a call signal from the antenna 9 and a predetermined detection range. Smart comprising an antenna 9 that receives a response signal, a smart ECU 10 that authenticates the response signal, a door lock actuator 5 that locks or unlocks the door, and a body control ECU 4 that controls the door lock actuator 5 A key system is installed.

  Here, a plurality of antennas 9 are provided for one vehicle, and are arranged in the vicinity of the doors and trunks of the vehicle (including hatched doors). The detection range of the antenna 9 is a range within about 1 m from each antenna. Based on a command signal from the smart ECU 10, an interrogation signal is transmitted periodically (about several times per second) to the detection range.

  Here, when the vehicle door (not shown) is locked like a parked vehicle and the liquid crystal shutter 7 is in a non-perspective state, the user carrying the smart key 8 approaches the vehicle door. When entering the detection range, the smart key 8 that has received the interrogation signal from the antenna 9 transmits a response signal.

  When the antenna 9 receives the response signal, the smart ECU 10 authenticates the response signal and determines whether the signal is sent from the smart key for the vehicle. When the smart ECU 10 determines that the signal is sent from the smart key for the vehicle as a result of authentication, the smart ECU 10 outputs an unlocking permission signal. When it is determined that the signal is not sent from the smart key for the vehicle, the smart ECU 10 does not output the unlock permission signal.

  The body control ECU 4 that has received the unlocking permission signal transmits a door unlocking command to the door lock actuator 5, and the door lock actuator 5 that has received the command unlocks the door.

  On the other hand, the liquid crystal shutter ECU 6 that has received the unlocking permission signal transmits a voltage application command to the voltage source 12, and the voltage source 12 that has received the voltage applies the voltage to the liquid crystal shutter 7, so that the liquid crystal is Switch from the non-perspective state to the fluoroscopic state.

  As described above, as in the case of the first embodiment described above, the liquid crystal shutter 7 can be switched from the non-transparent state to the transparent state before the user opens the vehicle door for getting on, and the inside of the vehicle is visually recognized. Will be able to.

  The body control ECU 4 that has received the unlocking permission signal immediately transmits a door unlocking command to the door lock actuator 5, but temporarily holds the command without transmitting the command, and the user holds the door knob. It is good also as changing to the state (standby mode) which transmits the said command, when touching or holding a doorknob.

  Next, the operation of the liquid crystal shutter 7 when the user locks the door of the vehicle when the vehicle door is unlocked like the vehicle immediately after parking and the liquid crystal shutter 7 is in a transparent state will be described below. To do.

  A switch (not shown; hereinafter referred to as “locking switch”) is provided in the vicinity of the door knob on the outside of the vehicle.

  Here, if the user carrying the smart key 8 is within the detection range when the vehicle door is unlocked and the liquid crystal shutter 7 is in a see-through state, an interrogation signal is periodically transmitted. The antenna 9 is receiving the response signal from the smart key 8, and the smart ECU 10 periodically authenticates the response signal.

  When the smart ECU 10 determines that the signal is sent from the smart key for the vehicle as a result of the authentication, if the user presses the locking switch, the smart ECU 10 outputs a locking permission signal. Output. When it is determined that the signal is not sent from the vehicle smart key, if the lock switch is pressed, the smart ECU 10 does not output the lock permission signal.

  The body control ECU 4 that has received the locking permission signal transmits a door locking command to the door lock actuator 5, and the door lock actuator 5 that receives the command locks the door.

  On the other hand, the liquid crystal shutter ECU 6 that has received the locking permission signal transmits a command to stop the voltage application to the voltage source 12, and the voltage source 12 receiving this command applies the voltage applied to the liquid crystal shutter 7. Is stopped to switch the liquid crystal from the see-through state to the non-see-through state.

  As described above, even after the user gets off the vehicle and closes the door, the liquid crystal shutter 7 is in a transparent state until the user carrying the smart key 8 presses the locking switch. Can visually recognize the inside of the vehicle.

  When the liquid crystal shutter 7 is switched from the see-through state to the non-see-through state, the above-described locking switch is not provided in the vehicle, and the antenna 9 does not receive a response signal when the user moves out of the detection range. It is good also as operation | movement demonstrated below.

  That is, when the vehicle door is unlocked and the liquid crystal shutter 7 is in a transparent state and the user carrying the smart key 8 moves out of the detection range from the detection range, the antenna 9 is for the vehicle. The response signal from the smart key 8 that has been determined to be a smart key is not received. And smart ECU10 will output a locking permission signal, if the interruption of reception of this response signal is recognized.

  The body control ECU 4 that has received the locking permission signal transmits a door locking command to the door lock actuator 5, and the door lock actuator 5 that receives the command locks the door.

  On the other hand, the liquid crystal shutter ECU 6 that has received the locking permission signal transmits a command to stop the voltage application to the voltage source 12, and the voltage source 12 receiving this command applies the voltage applied to the liquid crystal shutter 7. Is stopped to switch the liquid crystal from the see-through state to the non-see-through state.

  Thus, even after the user gets off the vehicle and closes the door, the liquid crystal shutter 7 is in a transparent state until the user carrying the smart key 8 moves out of the detection range of the antenna 9. Therefore, the inside of the vehicle can be visually recognized until then.

  In the embodiment of FIG. 2 described above, the antenna 9 periodically transmits an interrogation signal based on an instruction from the smart ECU 10. However, this system always emits radio waves for calling, and the battery of the vehicle is exhausted heavily. Therefore, as shown in FIG. 3, a switch 11 connected to the smart ECU 10 may be provided near the door knob on the outer surface of the vehicle so that an interrogation signal is transmitted only when the user presses the switch 11. Good.

  In the case of adopting the above-described configuration, the operation when the liquid crystal shutter 7 is switched from the non-transparent state to the transparent state after the interrogation signal is transmitted has been described using the second embodiment (FIG. 2). Same as the case.

  An operation when the liquid crystal shutter is switched from the see-through state to the non-see-through state when the above-described configuration is adopted will be described below.

  When the vehicle door is unlocked and the liquid crystal shutter 7 is in a see-through state, when the user presses the switch 11, the smart ECU 10 transmits a command signal for transmitting a call signal to the antenna 9. .

  Upon receiving this, the antenna 9 transmits an interrogation signal and confirms the presence of the smart key within the detection range of the antenna 9.

  When the antenna 9 receives the response signal transmitted from the smart key 8, the smart ECU 10 authenticates the response signal, and as a result of the authentication, the response signal is sent from the smart key for the vehicle. If it is determined that there is, a lock permission signal is output. When it is determined that the response signal is not sent from the smart key for the vehicle, the smart ECU 10 does not output the lock permission signal.

  The body control ECU 4 that has received the locking permission signal transmits a door locking command to the door lock actuator 5, and the door lock actuator 5 that receives the command locks the door.

  On the other hand, the liquid crystal shutter ECU 6 that has received the locking permission signal transmits a command to stop the voltage application to the voltage source 12, and the voltage source 12 receiving this command applies the voltage applied to the liquid crystal shutter 7. Is stopped to switch the liquid crystal from the see-through state to the non-see-through state.

  Thereby, even after the user gets off the vehicle and closes the door, the liquid crystal shutter 7 is in a transparent state until the user presses the switch 11, so that the inside of the vehicle can be visually recognized until then. It becomes.

  In the first to third embodiments, the door is locked or unlocked and the liquid crystal shutter 7 is switched between the see-through state and the see-through state at the same time. A different time difference may be provided.

  Specifically, in a situation where the door is locked and the liquid crystal shutter is in a see-through state, when unlocking the door and making the liquid crystal shutter in a see-through state, before unlocking the door, The liquid crystal shutter is in a see-through state, and then the door is unlocked after a predetermined time has elapsed. By providing such a time difference, if a suspicious person has entered the vehicle, the suspicious person can be found before the door is unlocked, and thus the safety for the user is further improved.

  In addition, when the door is unlocked and the liquid crystal shutter is in a see-through state, when the door is locked and the liquid crystal shutter is in a non-see-through state, The door is locked, and after a predetermined time has elapsed, the liquid crystal shutter is switched to the non-permeable state. As a result, the interior of the vehicle can be visually recognized even after the door is locked, and the liquid crystal shutter is automatically switched to the non-permeability state thereafter, so that the liquid crystal shutter is more convenient for the user.

  In the first to third embodiments described above, the liquid crystal shutter is used as the vehicle window shutter. However, the present invention is not limited to this. For example, the shutter can be opened and closed by an electric opening / closing curtain or blind, or a power window device. Any shutter that can switch between the see-through state and the non-see-through state, such as possible dark-colored glass, and puts a dark curtain on the window may be used.

  In addition, the liquid crystal shutter in the embodiment is embedded in the window and integrated with the window, but may be configured to be simply attached to the window.

  Furthermore, with regard to terminals carried by users (transmitters and smart keys), mobile information terminals such as mobile phones and PDAs (Personal Digital Assistance) are used as transmitters, not dedicated to keyless entry systems and smart key systems. And you may comprise so that the infrared port etc. which were mounted in those terminals may communicate with vehicles, and a door may be locked and unlocked.

It is a figure which shows the structure of the liquid-crystal shutter interlock | cooperated with the keyless entry system which is the 1st Example of this invention. It is a figure which shows the structure of the liquid-crystal shutter interlock | cooperated with the smart key system which is the 2nd Example of this invention. It is a figure which shows the structure of the liquid-crystal shutter interlock | cooperated with the smart key system which is the 3rd Example of this invention.

Explanation of symbols

1 Transmitter 2, 9 Antenna 3 Keyless ECU
4 Body control ECU
5 Door lock actuator 6 LCD shutter ECU
7 LCD shutter 8 Smart key 10 Smart ECU
11 Switch 12 Voltage source

Claims (10)

In the shutter for dark curtains used in vehicle windows,
The vehicle includes an automatic locking / unlocking device that performs authentication of a signal transmitted from a mobile terminal and then switches to a standby mode for locking or unlocking or unlocking the door of the vehicle,
The shutter is switched between a see-through state and a non-see-through state based on an authentication result of the signal by the automatic locking and unlocking device;
A window shutter for vehicles. The vehicle window shutter according to claim 1,
When the automatic locking / unlocking device receives a locking / unlocking request signal transmitted from a dedicated portable transmitter, it performs authentication of the locking / unlocking request signal and then locks or unlocks the door of the vehicle. System,
The shutter is switched between a see-through state and a non-see-through state based on the authentication result of the lock / unlock signal by the keyless entry system,
A window shutter for vehicles. The vehicle window shutter according to claim 2,
When the keyless entry system receives the unlock request signal transmitted from the transmitter, the keyless entry system unlocks the door of the vehicle in a locked state after authenticating the unlock request signal. System,
The shutter is switched from a non-permeable state to a fluoroscopic state based on the authentication result of the unlock request signal by the keyless entry system;
A window shutter for vehicles. The vehicle window shutter according to claim 2,
When the keyless entry system receives the lock request signal transmitted from the transmitter, the keyless entry system locks the door of the vehicle in an unlocked state after authenticating the lock request signal. Yes,
The shutter is switched from a see-through state to a non-see-through state based on the authentication result of the lock request signal by the keyless entry system,
A window shutter for vehicles. The vehicle window shutter according to claim 1,
The automatic locking / unlocking device transmits an interrogation signal to a predetermined detection range from an antenna mounted on the vehicle, and receives a response signal from a portable smart key that responds to the interrogation signal. It is a smart key system that switches to a standby mode for locking or unlocking or unlocking the door of the vehicle after authenticating a response signal,
The shutter is switched between a fluoroscopic state and a non-transparent state based on an authentication result of a response signal by the smart key system,
A window shutter for vehicles. The vehicle window shutter according to claim 5,
The smart key system periodically transmits the interrogation signal from the antenna, and receives a response signal from the smart key that responds to the interrogation signal, and then authenticates the response signal. A smart key system that automatically switches to a standby mode for unlocking or unlocking the door of the vehicle in a locked state;
The shutter is switched from a non-transparent state to a transparent state based on an authentication result of a response signal by the smart key system,
A window shutter for vehicles. The vehicle window shutter according to claim 5,
A switch is provided on the outer surface of the vehicle,
When the smart key system periodically transmits the challenge signal from the antenna and receives and authenticates a response signal from the smart key that responds to the challenge signal, the switch is A smart key system that, when pressed, locks the door of the vehicle in an unlocked state,
The shutter is switched from a see-through state to a non-see-through state when the switch is pressed while the smart key system is receiving and authenticating a response signal;
A window shutter for vehicles. The vehicle window shutter according to claim 5,
A switch is provided on the outer surface of the vehicle,
The smart key system transmits the interrogation signal from the antenna when the switch is pressed, and authenticates the response signal when the response signal from the smart key responding to the interrogation signal is received. A smart key system that switches to a standby mode for unlocking or unlocking the door of the vehicle in a locked state above,
When the switch is pressed when the door of the vehicle is locked, the shutter is switched from a non-transparent state to a transparent state based on an authentication result of a response signal by the smart key system,
A window shutter for vehicles. The vehicle window shutter according to claim 5,
A switch is provided on the outer surface of the vehicle,
The smart key system transmits the interrogation signal from the antenna when the switch is pressed, and authenticates the response signal when the response signal from the smart key responding to the interrogation signal is received. A smart key system for locking the door of the vehicle in the unlocked state above,
When the switch is pressed when the door of the vehicle is unlocked, the shutter is switched from the see-through state to the non-see-through state based on the authentication result of the response signal by the smart key system;
A window shutter for vehicles. The vehicle window shutter according to claim 1,
The automatic locking / unlocking device periodically transmits an interrogation signal to a predetermined detection range from an antenna mounted on the vehicle, and receives a response signal from a portable smart key that responds to the interrogation signal. And after authenticating, when the response signal from the smart key is not received, it is a smart key system that automatically locks the door of the vehicle in an unlocked state,
The shutter is switched from a see-through state to a non-see-through state when the smart key system receives and does not receive the authenticated response signal;
A window shutter for vehicles.

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