JP6016089B2 - Smart system - Google Patents

Description

  The present invention relates to a smart system.

  In the field of automobile-related technology, a smart system (electronic key system, keyless) composed of an in-vehicle device mounted on a vehicle and a portable device (also referred to as an electronic key or smart key) possessed by the user of the vehicle. (Sometimes referred to as entry devices). If this type of smart system is authenticated by wireless communication between the in-vehicle device and the portable device, control such as door locking / unlocking and engine starting can be performed without operation with a mechanical key. It is a mechanism that can be executed. For this reason, it greatly contributes to the improvement of user convenience.

  In addition, even when all the doors of the vehicle are not closed, it is possible to perform an operation for keyless entry without having to wait until all the doors are closed by reserving locks in advance. A keyless entry device has been devised (see Patent Document 1).

  Also, a keyless entry device has been devised that does not require the user to wait in the vicinity of the vehicle until the electric door moves to the fully closed position if the locking reservation is made (see Patent Document 2).

  Also, in order to make more effective use of the smart system, an electronic key system has been devised that can more easily find a portable device to be searched (see Patent Document 3).

  Further, an electronic key system has been devised that allows a user to specify the position of a vehicle (see Patent Document 4).

  In addition, an electronic key system has been devised that can connect Bluetooth (registered trademark) communication between a vehicle-side device and a vehicle control portable device without reducing power consumption and without losing convenience. (See Patent Document 5).

Japanese Patent No. 4051917 JP 2011-214341 A JP 2008-163633 A JP 2008-213514 A JP 2010-168209 A

  In a keyless entry device capable of making a reservation for locking as in Patent Documents 1 and 2, a user needs to operate a portable device in order to make a reservation for locking.

  Conventional electronic key systems such as Patent Documents 3 to 5 do not have a configuration capable of making a reservation for locking. In addition, the portable device is usually stored in, for example, a pocket of clothes or a bag, and the user rarely actually obtains it when riding or driving the vehicle. However, when there are passengers such as children when getting off, it is necessary to wait beside the vehicle until everyone gets off to lock the door, take out the electronic key from the bag and lock it using the wireless function Have to do.

  Against the background of the above problems, an object of the present invention is to provide a smart system that allows a user to make a lock reservation without operating a portable device.

Means for Solving the Problems and Effects of the Invention

  A smart system for solving the above-described problem includes an in-vehicle device (101) mounted on a vehicle (10) and a portable device (102) possessed by a user, and is wireless between the in-vehicle device and the portable device. The smart system (100) in which the in-vehicle device performs various controls based on the communication result, and the in-vehicle device includes a locking reservation detection unit (144FR) that detects a user's locking reservation operation, When the reservation detection unit detects a locking reservation operation, an operation mode control unit (110) that shifts to the locking reservation mode based on the communication result, and a predetermined locking condition is established after the transition to the locking reservation mode And a locking control unit (110, 141) for locking the door of the vehicle.

  With the above configuration, it becomes possible for the user to make a lock reservation without operating the portable device. In addition, after making a reservation for locking, the user who has the portable device does not need to be in the vicinity of the vehicle, and can immediately move to other work (such as transporting luggage) after making a reservation for getting off and locking.

The block diagram which shows the structure of a smart system. The flowchart explaining a door locking control process. The flow figure explaining locking reservation processing.

  Hereinafter, the smart system of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration of the smart system 100. The smart system 100 includes an in-vehicle device 101 mounted on the vehicle 10 and a portable device 102 possessed by the user.

  The in-vehicle device 101 includes an ECU 110, a LF transmission unit 111 connected to the ECU 110, a UHF reception unit 112, a memory 113 that is a nonvolatile storage medium such as a flash memory, an engine switch 115, and a door antenna connected to the LF transmission unit 111. 116 (a general term for 116FR, 116FL, 116RR, and 116RL), an indoor antenna 117, an antenna 118 in the trunk, an antenna 119 outside the trunk, and the like.

  ECU 110 is configured as a computer that includes a well-known CPU, a ROM and RAM that store various programs (collectively referred to as “vehicle-mounted device control program”), a signal input / output circuit (none of which are shown), and the like. And various functions as the vehicle-mounted device 101 are realized by the CPU executing the vehicle-mounted device control program. The ECU 110 corresponds to an operation mode control unit, an elapsed time measurement unit, a locking control unit, and a locking operation detection unit of the present invention.

  The LF transmission unit 111 transmits a radio signal to the portable device 102 using, for example, radio waves in the LF band or the VLF band. The radio signal transmitted from the LF transmission unit 111 includes, for example, a door antenna 116 in four hinge doors 140 (generally referred to as 140FR, 140FL, 140RR, and 140RL, the same applies hereinafter), an indoor antenna 117, Via the antenna 118 and the trunk outside antenna 119, they reach only within a limited communication area in the vicinity of the door (outside the cabin), in the cabin, inside the trunk, and outside the trunk.

  The UHF receiving unit 112 receives a radio signal transmitted from the portable device 102 using, for example, a radio wave in the UHF band. Thereby, even if the output level of the portable device 102 is relatively weak, a communication distance can be obtained accordingly, and the response signal can be transmitted to the in-vehicle device 101 side more reliably.

  The engine switch 115 is a switch operated by the user when starting the engine of the vehicle 10. When it is detected that the user operates the engine switch 115, the ECU 110 is in a state where the engine start is permitted. If the engine start is permitted, an engine start signal is transmitted from the ECU 110 to the engine control system.

  Each door 140 of the vehicle 10 is controlled to a locked / unlocked state in accordance with a control signal from the ECU 110, and a door lock control unit that outputs the door locked state (locked / unlocked) to the ECU 110. 141 (a general term for 141FR, 141FL, 141RR, 141RL, the same applies hereinafter) and a door switch 142 (a generic name for 142FR, 142FL, 142RR, 142RL, same applies hereinafter) that detects the open / closed state of the door. The door lock control unit 141 corresponds to the locking control unit of the present invention. The door switch 142 corresponds to the door state detection unit of the present invention.

  A door lock switch 144FR for locking / unlocking the door based on the user's operation is provided at or near the door knob (not shown) of the driver's seat door 140FR. Other doors may be provided with a door lock switch (for example, 144FL). The door lock switch 144FR corresponds to the lock reservation detection unit of the present invention.

  The trunk hatch 150 also includes a trunk clock control unit 151 that controls the trunk hatch 150 in a locked / unlocked state according to a control signal from the ECU 110, a trunk switch 152 that detects an open / closed state of the trunk hatch 150, a user Is provided with a trunk unlock switch 154 for unlocking the trunk hatch 150.

  Moreover, it is good also as a structure which uses the door (140RR, 140RL) of the backseat of the vehicle 10 as a slide door. The slide doors (140RR, 140RL) are respectively provided with a right slide door drive unit 143RR and a left slide door drive unit 143RL that use a motor as a drive source, and drive the motor in accordance with an opening / closing signal from the ECU 110. Thus, the slide doors 140RR and 140RL can be opened / closed. Also provided are slide door opening / closing switches 144RR and 144RL for the user to open / close each slide door.

  Moreover, it is good also as a structure which backdoors the trunk hatch 150. FIG. The back door (150) is provided with a back door drive unit 153 that uses a motor as a drive source, and the motor is driven to open / close the back door in accordance with an open / close signal from the ECU 110. it can. Further, the trunk lock control unit 151 controls the back door in a locked / unlocked state according to a control signal from the ECU 110, and the trunk switch 152 detects the open / closed state of the back door. The trunk unlock switch 154 serves to open / close the back door.

  A well-known horn 181 and lighting device 182 are connected to the ECU 110 via an in-vehicle LAN 180.

  The portable device 102 includes a control unit 120, an LF reception unit 121, a UHF transmission unit 122, operation switches 124 to 126, a memory 130 including a nonvolatile storage medium such as a flash memory, and the like.

  The control unit 120 is, for example, a microcomputer including a well-known CPU, a ROM or RAM in which various programs (collectively referred to as “portable device control program”) are stored, a signal input / output circuit (all not shown), and the like. Composed. Then, the CPU executes the portable device control program, thereby realizing various functions as the portable device 102.

  The LF receiving unit 121 receives a radio signal transmitted from the in-vehicle device 101 using an LF band radio wave. The UHF transmission unit 122 transmits a radio signal to the in-vehicle device 101 using a UHF band radio wave.

  For example, the operation switches 124 to 126 are mainly configured as a push switch group serving as a trigger for using the remote keyless entry function. When a one-push operation is performed, the operation switch 124 has a door 140 according to the operated switch. The operation switch 125 unlocks the door 140 and the operation switch 126 unlocks only the trunk hatch 150.

  With the above-described configuration, the smart system 100 sends a signal (for example, a response request signal) to the portable device 102 via the LF transmission unit 111 of the in-vehicle device 101 at a predetermined timing or cycle. Transmission is sequentially performed from the antenna 116, the indoor antenna 117, the trunk antenna 118, and the trunk antenna 119 (sometimes collectively referred to as “antenna”) to the portable device 102. Then, the UHF receiver 112 receives a response signal from the portable device 102.

  When a signal from the portable device 102 (for example, a response signal to the response request signal) is correctly received, the response signal (ID code) is collated with the master code stored in the memory 113, and the door is based on the collation result. The engine is allowed to be unlocked based on an instruction to turn on the engine switch 115, and the collation process is retried. Since these are not directly related to the present invention, details are omitted.

The door locking control process performed in the ECU 110 of the in-vehicle device 101 will be described with reference to FIG. This process is included in the above-described in-vehicle device control program, and is repeatedly executed at a predetermined timing together with other processes included in the program. Moreover, this process is based on the premise that the vehicle 10 is parked. For example, at least one of the following is used to determine whether or not the vehicle 10 is parked.
When the engine switch 115 is off, it is determined that the vehicle 10 is parked.
-When the vehicle speed which a vehicle speed sensor (not shown) detects is zero, it determines with the vehicle 10 being parked.
When the shift lever (not shown) is in the “parking” position, it is determined that the vehicle 10 is parked.

  First, when the user who has the portable device 102 is in the vicinity of the vehicle 10 to lock the door 140, the portable device 102 receives a response request signal transmitted from any antenna of the in-vehicle device 101. The in-vehicle device 101 receives the ID code included in the response signal from the portable device 102 corresponding to the response request signal, and collates it with the master code stored in the memory 113 (S11). At this time, the response signal from the portable device 102 may be received by the door antenna 116 or the trunk outside antenna 119, that is, the portable device 102 may not exist in the vehicle interior. Since the reception ranges of the antennas do not overlap, it is possible to specify which antenna has received.

As a result of the collation, when the received ID code matches the master code (normal collation, S12: Yes), the state of the door lock switch 144FR is acquired (S13). Then, it is determined whether or not the user has performed a locking operation. One of the following is used to determine whether or not the user has performed the locking operation.
When the door lock switch 144FR is a push button switch, when the door lock switch 144FR is pressed once within a predetermined time (for example, 1 second), it is determined as a locking operation.
When the door lock switch 144FR is a touch sensor, it is determined as a locking operation when touched once within a predetermined time.

  When the user performs a locking operation (S14: Yes), as in the conventional smart system, the ECU 110 outputs a control signal to the door lock control unit 141 to lock all the doors (S15). Thereafter, this process is terminated.

On the other hand, when there is no user's locking operation (S14: No), it is determined whether there was a user's locking reservation operation. One of the following is used to determine whether or not the user has performed a locking reservation operation.
When the door lock switch 144FR is a push button switch, it is determined to be a locking reservation operation when pressed a plurality of times (for example, twice) within a predetermined time (for example, one second).
When the door lock switch 144FR is a touch sensor, it is determined as a lock reservation operation when touched a plurality of times within a predetermined time.

  An operation of pressing or touching the door lock switch 144FR for a relatively short time (for example, 0.5 seconds or less) (short pressing), and an operation of pressing or touching the door lock switch 144FR for a relatively long time (for example, about 1 second) (long pressing). May be stored in advance in the memory 113 as an operation pattern, and when the user's operation of the door lock switch 144FR matches the operation pattern, the lock reservation operation may be determined.

  When the user performs a locking reservation operation (S16: Yes), a locking reservation process is executed (S17, see FIG. 3). On the other hand, when there is no user's locking reservation operation (S16: No), this process is terminated.

  The locking reservation process corresponding to step S17 of FIG. 2 will be described using FIG. First, when the user performs a lock reservation operation, the vehicle exterior verification is performed, and the ID code of the portable device 102 that has been successfully verified is stored in the memory 113 (S31). The reason for performing outside-vehicle collation is to identify the portable device possessed by the user who performed the locking reservation operation and to exclude the portable device existing in the vehicle interior. Next, a timer (for example, a 30-second timer) is started (S32).

Next, the following vehicle state information is acquired (S33).
The control state of the door lock control unit 141. The state of the door switch 142.
The control state of the trunk clock control unit 151. The state of the trunk switch 152.

  When it is determined that all of the doors (including other rank hatches and the back door) are closed based on the state of the door switch 142 and the trunk switch 152 (S34: Yes), based on the control state of the door lock control unit 141. Then, the presence / absence of the locking operation by the user is determined. That is, when the door lock control unit 141 executes the locking control for all of the doors 140, it is determined that the locking operation has been performed.

The locking operation by the user includes the following. The ECU 110 can determine which of the following has performed the locking operation.
When the locking operation (smart locking) of the door lock switch 144FR is detected (the ECU 110 commands locking).
When an operation (wireless locking) of the operation switch 124 of the portable device 102 is received (the ECU 110 commands locking).
・ When a locking operation with a mechanical key is detected. This operation may be detected from a so-called cylinder lock state. Further, when the ECU 110 detects that the door lock control unit 141 changes the state of the door 140 from unlocking to locking due to factors other than smart locking and wireless locking, this operation may be used.

  When there is no locking operation by the user (S35: No), it is determined whether or not the timer has expired (for example, 30 seconds have passed). When the time is not up (S36: No), the process returns to step S33. On the other hand, when the time is up (S36: Yes), a response request signal is transmitted via the indoor antenna 117. When a response signal from the portable device is received within a predetermined time, the ID code included in the response signal is received and collated with the master code stored in the memory 113 (S37).

When the portable device 102 is in the passenger compartment, that is, when the indoor antenna 117 receives a response signal from the portable device (S38: Yes), the ID code of the portable device and the user lock stored in step S31 When a reservation operation is performed, the vehicle exterior verification is performed, and the ID code of the portable device 102 that has been successfully verified is compared. As a result, when the two ID codes match (S39: Yes), it is determined that the user has forgotten the portable device 102 in the passenger compartment, and the fact is notified (S43). Any of the following may be used for the notification method.
・ Blowing of horn 181.
The lighting device 182 is turned on or blinking. For example, lighting or blinking a room light helps to find a portable device 102 that has been left in the passenger compartment at night.
A control signal for outputting a message display or a voice message to other in-vehicle devices (such as a navigation device) is output via the in-vehicle LAN 180.
In this configuration, the lock control unit is used for collation at the time of lock reservation execution when the doors of the vehicle are all closed, when the elapsed time exceeds a predetermined time threshold, and as a result of wireless communication. When the used portable device is present in the passenger compartment, it corresponds to a notification to that effect.

  When there was no portable device 102 in the passenger compartment (S38: No), or there was a portable device in the passenger compartment (S38: Yes), the ID code of the portable device was used for verification at the time of lock reservation execution. When the ID code of the portable device 102 does not match (S39: No), the ECU 110 outputs a control signal to the door lock control unit 141 so as to control all the doors 140 to the locked state (S40). Thereafter, this process is terminated.

  The above-described configuration of step S38: No, the in-vehicle device includes a door state detection unit (142) that detects the open / closed state of the door of the vehicle, and an elapsed time measurement unit that measures an elapsed time since the transition to the lock reservation mode. (110), and the locking control unit is configured such that when all the doors of the vehicle are closed, the elapsed time exceeds a predetermined time threshold, and as a result of wireless communication, the portable device is placed in the vehicle interior. This corresponds to the case where the locking condition is satisfied when it does not exist. With this configuration, the portable device can be prevented from being closed when the portable device is left behind in the passenger compartment.

  In addition, the configuration of the above-described step S38: Yes → S39: No, the locking control unit is a portable device when the locking operation detecting unit detects the user's locking operation, and when the locking reservation operation is performed as a result of wireless communication Corresponds to the case where the locking condition is satisfied when the is not present in the passenger compartment. With this configuration, if you forget to place the portable device 102 in the passenger compartment after unloading or entering or leaving the vehicle after locking reservation, locking is basically prohibited, but it is not the portable device used for locking reservation. As long as the key is closed, it is possible to reduce the concern that the vehicle 10 is left in the unlocked state.

  The above-described steps S37 to S39 and S43 are not executed, and when the time is up (S36: Yes), it may be configured to lock immediately (S40). In this configuration, the in-vehicle device includes a door state detection unit (142) that detects the open / closed state of the door of the vehicle, and an elapsed time measurement unit (110) that measures an elapsed time since the transition to the lock reservation mode. The locking control unit corresponds to a case where the locking condition is established when all the doors of the vehicle are closed and the elapsed time exceeds a predetermined time threshold. With this configuration, after a predetermined time has elapsed after all passengers get off, the user can perform other work away from the vehicle after performing a lock reservation operation.

  On the other hand, when there is a locking operation by the user in step S35 (S35: Yes), the timer is stopped and reset (S41). And it is determined whether this locking operation is equivalent to the above-mentioned smart locking. When it corresponds to smart locking (S42: Yes), the process after the above-mentioned step S37 is performed. On the other hand, when it does not correspond to smart locking (S42: No), the process of step S40 (locking) described above is executed.

  When the configuration corresponding to the above-described smart locking is the locking control unit, when the locking operation detection unit detects the user's locking operation, and as a result of wireless communication, the portable device is not present in the vehicle interior, This corresponds to the case where the locking condition is satisfied. In addition, the configuration when it does not correspond to smart locking, the in-vehicle device includes a locking operation detection unit (110) that detects the locking operation of the user, and the locking control unit detects the locking operation of the user by the locking operation detection unit This corresponds to the case where the locking condition is satisfied. This configuration gives priority to the user's locking operation and does not reduce the user's convenience.

  When executing the processing after step S37 with smart locking, the ID code of the portable device collated at the time of locking reservation confirmation is stored as in step S39: No, and the mobile phone not used for the locking reservation in a special case Although it is possible to allow the machine to be closed, in smart locking, since the user is in the vicinity of the vehicle 10, regardless of the ID code of the portable machine in the passenger compartment, forgetting the portable machine without locking it. It is preferable to inform the user and take out the portable device. That is, in this case, if “Yes” is determined in step S38, step S43 is immediately executed.

  On the other hand, when it is determined in step S34 that all of the doors are not closed (S34: No), it is determined whether or not the driver's seat door 140FR is closed. When the driver's seat door 140FR is not closed (S44: No), the timer is stopped and reset (S49). Thereafter, this process is terminated. This configuration corresponds to the operation mode control unit canceling the locking reservation mode when a predetermined release condition is satisfied in the locking reservation mode. With this configuration, it is possible to deal with when it is desired to cancel the lock reservation.

More specifically, the operation mode control unit corresponds to a condition that the release condition is satisfied when the door state detection unit detects that the door of the driver's seat is open among the vehicle doors. With this configuration, it is possible to easily cancel the lock reservation. In addition, opening the door of the driver's seat during the lock reservation is considered to have an intention to drive the vehicle, so it seems that there is little trouble even if the lock reservation is canceled.

Further, the release condition may be satisfied when the following unlocking operation of the user is detected.
When an operation (wireless unlocking) of the operation switch 125 of the portable device 102 is received.
・ When unlocking operation by mechanical key is detected.
Note that the release condition is not satisfied when the opening operation of the trunk, the back door, and the slide door is detected. As a result, when a trunk or the like is forgotten to be opened before a lock reservation (forgetting to remove a baggage) and is unavoidably opened after a lock reservation, the lock reservation is not canceled. The convenience for the user is not lowered.

  On the other hand, when the door 140FR of the driver's seat is closed, that is, when the doors other than the driver's seat are open (S44: Yes), for example, by blowing the horn 181 and lighting or flashing the lighting device 182, Is in an open state (S45). Subsequently, the timer is stopped and reset (S46).

In the above configuration, when the lock control unit is in the lock reservation mode, the door state detection unit detects that one of the doors of the vehicle other than the door of the driver's seat is open. corresponds to shall stop the measurement of the elapsed time by the elapsed time measuring unit. With this configuration, it is not locked when the passenger gets out of the vehicle or unloads the luggage, and the convenience of the user can be prevented from being impaired. Moreover, it can be made to recognize that the passenger | crew is in the lock reservation by alert | reporting. Furthermore, no notification is given when all doors are closed (during timer counting), so that it is difficult for third parties to know that the door is unlocked until the passenger is locked Can do.

  Thereafter, when all the doors are not closed (S47: No), the process returns to step S44. On the other hand, when all the doors are closed (S47: Yes), the timer is restarted from the remaining 30 seconds (that is, the initial value) (S48). And the locking operation judgment of step S35 is performed.

  Although the embodiments of the present invention have been described above, these are merely examples, and the present invention is not limited to these embodiments, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

DESCRIPTION OF SYMBOLS 10 Vehicle 100 Smart system 101 In-vehicle apparatus 102 Portable machine 110 ECU (Operation mode control part, elapsed time measurement part, locking control part, locking operation detection part)
144FR Door lock switch (locking reservation detector)
141 Door lock control part (141FR, 141FL, 141RR, 141RL: Locking control part)
142 door switch (142FR, 142FL, 142RR, 142RL: door state detection unit)

Claims (7)

A vehicle-mounted device (101) mounted on the vehicle (10) and a portable device (102) possessed by the user, wireless communication is performed between the vehicle-mounted device and the portable device, and based on the communication result A smart system (100) in which the in-vehicle device executes various controls,
The in-vehicle device is
A locking reservation detecting unit (144FR) for detecting the locking reservation operation of the user;
An operation mode control unit (110) that transitions to a locking reservation mode based on the communication result when the locking reservation detection unit detects the locking reservation operation;
A locking control unit (110, 141) for locking the door of the vehicle when a predetermined locking condition is satisfied after transitioning to the locking reservation mode;
A door state detector (142) for detecting the open / closed state of the door of the vehicle;
An elapsed time measuring unit (110) for measuring an elapsed time since the transition to the lock reservation mode;
Equipped with a,
The lock control unit is a smart system in which the lock condition is satisfied when all the doors of the vehicle are closed and the elapsed time exceeds a predetermined time threshold . A vehicle-mounted device (101) mounted on the vehicle (10) and a portable device (102) possessed by the user, wireless communication is performed between the vehicle-mounted device and the portable device, and based on the communication result A smart system (100) in which the in-vehicle device executes various controls,
The in-vehicle device is
A locking reservation detecting unit (144FR) for detecting the locking reservation operation of the user;
An operation mode control unit (110) that transitions to a locking reservation mode based on the communication result when the locking reservation detection unit detects the locking reservation operation;
A locking control unit (110, 141) for locking the door of the vehicle when a predetermined locking condition is satisfied after transitioning to the locking reservation mode;
A door state detector (142) for detecting the open / closed state of the door of the vehicle;
An elapsed time measuring unit (110) for measuring an elapsed time since the transition to the lock reservation mode;
Equipped with a,
When the doors of the vehicle are all closed, the elapsed time exceeds a predetermined time threshold, and the result of the wireless communication is that the portable device is present in the vehicle interior. A smart system in which the locking condition is satisfied when there is not . When the lock control unit is in the lock reservation mode, when the door state detection unit detects that one of the doors of the vehicle other than the door of the driver's seat is open, The smart system according to claim 1, wherein measurement of elapsed time by the elapsed time measurement unit is stopped . The in-vehicle device is
A locking operation detection unit (110) for detecting the user's locking operation;
The smart system according to any one of claims 1 to 3, wherein the locking control unit is configured such that the locking condition is satisfied when the locking operation detection unit detects the locking operation of the user . The locking control unit determines that the locking condition is satisfied when the locking operation detecting unit detects the locking operation of the user and as a result of the wireless communication, the portable device is not present in the vehicle interior. The smart system according to claim 4 . 6. The smart according to claim 1, wherein the operation mode control unit cancels the lock reservation mode when a predetermined release condition is satisfied in the lock reservation mode. 7. system. The operation mode control unit according to claim 6, wherein the release condition is satisfied when the door state detection unit detects that a door of a driver's seat is open among the doors of the vehicle . Smart system.

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