JP5653711B2 - Door lock system - Google Patents

Description

  The present invention relates to a door lock system, and more particularly to a door lock system that automatically controls locking of a vehicle door.

  In recent years, a door lock system (sometimes referred to as a so-called keyless entry system) capable of locking / unlocking a door of a vehicle without using a mechanical key is often installed in the vehicle. The door lock system is mainly composed of an in-vehicle device mounted on a vehicle (hereinafter referred to as a host vehicle) and an electronic key carried by a user such as a driver (sometimes called a so-called smart key). Has been.

  For example, when the user carrying the electronic key approaches the host vehicle, communication is performed between the in-vehicle device and the electronic key, and the ID code of the electronic key is verified by the in-vehicle device. And if the said vehicle-mounted apparatus confirms that it is a regular user (regular electronic key) of the said own vehicle, the said user will perform locking / unlocking of the door of the own vehicle, without operating a mechanical key. (For example, Patent Document 1).

  On the other hand, generally, when the door lock system detects that communication between the own vehicle and the electronic key (carried by the user) is no longer possible, the user determines that the user is away from the own vehicle. The door of the host vehicle can be automatically locked.

Japanese Patent Publication No. 8-26698

  Here, for example, assuming that the vehicle is equipped with a security system in the host vehicle together with the door lock system, the security function is activated when the door lock system automatically locks the door of the host vehicle. Is assumed.

  At this time, for example, when a driver and a passenger are on the vehicle, the driver carries the electronic key, gets off the vehicle, leaves the vehicle, and the passenger remains in the vehicle. In this case, since the security function is activated as described above, a security warning may be performed when the passenger performs a getting-off operation or moves in the vehicle.

  In other words, a warning may be issued against the intention of the user (driver or passenger). Note that locking the door of the host vehicle may be a case where the user of the host vehicle does not use the host vehicle or leaves the host vehicle temporarily. When the door is locked, the security function is often activated at the same time. Therefore, if the movements of the door lock system and the security system are separately controlled according to the user's intention, the processing becomes complicated.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a door lock system suitable for the intention of the user of the host vehicle with a simple configuration.

In order to achieve the above object, the present invention employs the following configuration. That is, the present invention automatically drives the door lock of the vehicle to automatically lock the door lock when it is confirmed that the electronic key is out of the vehicle exterior area after the electronic key goes out of the vehicle compartment. The door lock system is capable of releasing the mechanism and the mechanism for automatically locking the door lock in a state where the electronic key is detected outside the vehicle compartment. The door lock system includes a drive unit that locks and unlocks the door lock of the vehicle, an electronic key determination unit that determines whether the electronic key is outside the vehicle compartment, and communication with the electronic key. performs the electronic key automatically lock the door lock of the vehicle by controlling the determined the drive manually stage that the electronic key is away from the vehicle after it is determined that the vehicle exterior of the vehicle At least one of control means, occupant detection means for detecting whether there is an occupant in the vehicle interior of the vehicle, and unlock sensor detection means for detecting that an unlock sensor provided on the door of the vehicle is operated . A detection means is provided. Further, the control means communicates with the electronic key, and it is determined that the electronic key is outside the vehicle compartment of the vehicle, and then the presence of an occupant in the vehicle compartment of the vehicle is detected by the occupant detection means. If and at least one of the case where the above-described unlocking sensor provided in a door of the vehicle is operated is detected by the unlock sensor operation detector is detected, and the electronic key by the electronic key determination unit there when it is determined that the vehicle exterior of the vehicle is characterized in that it does not perform the locking of the door lock is performed by controlling the drive means automatically.

  ADVANTAGE OF THE INVENTION According to this invention, the door lock system suitable for the user's intention of the own vehicle can be provided by simple structure.

The block diagram which showed an example of the structure of the door lock system which concerns on one Embodiment of this invention. The figure which assumed the specific scene where the door lock system which concerns on one Embodiment of this invention is used (automatic lock operation) The figure which assumed the specific scene where the door lock system concerning one embodiment of the present invention was used (auto lock cancellation) The flowchart which showed an example of the operation | movement which the various apparatuses of the door lock system which concern on one Embodiment of this invention perform.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this Example. In the following description, only the configuration and operation necessary for describing one embodiment of the present invention will be described, and other descriptions may be omitted.

  FIG. 1 is a configuration diagram showing an example of a configuration of a door lock system (sometimes referred to as a so-called keyless entry system or smart entry system) according to an embodiment of the present invention.

  In the present embodiment, the door lock system is mounted on a vehicle (typically a passenger car, hereinafter simply referred to as the host vehicle mv), and a security system is also mounted on the host vehicle mv together with the door lock system. Assuming the case, the following will be described.

  Further, the vehicle mv will be described on the assumption that it is a so-called 4-door type passenger car with a left handle as an example. However, this is for simplifying the explanation, and it goes without saying that the present invention is not limited to the position of the steering wheel, the type of the vehicle, and the like.

  As shown in FIG. 1, the door lock system according to the present embodiment includes a smart control ECU (Electronic Control Unit) 11, a body ECU (Electronic Control Unit) 12, a receiver 21 and the like on the host vehicle mv side. . Further, the door Fl on the driver's seat side of the host vehicle mv is provided with an unlock sensor and a lock sensor as the door handle sensor 31, further equipped with a vehicle exterior transmitter and the like, and also provided with a door lock control unit.

  Similarly, the door Fr on the passenger seat side of the own vehicle, the door Rl on the left side of the rear seat, and the door Rr on the right side of the rear seat are each provided with an unlock sensor and a lock sensor as door handle sensors 32, 33, 34, It also has an out-of-vehicle transmitter and a door lock controller.

  Further, as shown in FIG. 1, the own vehicle mv is also provided with an alarm 51. The alarm device 51 emits a sound when the user operates an electronic key described later or when the door lock is locked / unlocked. As described above, in the description of the present embodiment, it is assumed that the security system is mounted on the host vehicle mv together with the door lock system. The alarm device 51 may emit a warning sound when trying to open the door of the host vehicle mv in a state where the vehicle is on.

  In the following description, the user of the host vehicle mv is typically a driver of the host vehicle mv. For example, a passenger who is riding the host vehicle mv (along with the driver) is also referred to. May contain.

  Here, as described above, the door lock system capable of locking / unlocking the door of the host vehicle mv without using a mechanical key will be briefly described. The door lock system is mounted on the host vehicle mv. Communication is performed between the various devices (receiver 21 and smart control ECU 11 and the like) and an electronic key (sometimes referred to as a smart key) carried by the user, and the user operates, for example, a mechanical key. The door of the own vehicle can be locked and unlocked without any trouble.

  Although the electronic key 41 is also shown in FIG. 1, the electronic key 41 is usually carried by the user of the own vehicle (typically the driver of the own vehicle mv), and can be carried by the user. It is of a size.

  Since the electronic key 41 communicates with various devices mounted on the host vehicle mv as described above, the electronic key 41 is provided with a transmitter outside the vehicle as shown in FIG.

  Next, operations performed by various devices of the door lock system according to the present embodiment will be described with reference to the drawings assuming a specific situation in the host vehicle mv having the above-described configuration.

  2 and 3 are diagrams showing specific scenes (the operation of the host vehicle mv equipped with the door lock system and the operation performed by the user). FIG. 4 is a flowchart showing an example of operations performed by various devices of the door lock system according to the present embodiment.

  In the following description, operations performed by various devices of the door lock system according to the present embodiment will be described with reference to FIGS. 2, 3, and 4.

  First, (i) of FIG. 2 is a diagram showing a scene in which the user of the host vehicle mv gets out of the host vehicle mv with the electronic key 41. Note that the user of the host vehicle mv is typically a driver of the host vehicle mv, but may be, for example, a passenger on the host vehicle mv.

  When each door of the host vehicle mv is closed by the user, collation is performed between the host vehicle mv (specifically, the receiver 21 provided in the host vehicle mv) and the electronic key 41, and details will be described later. However, if it is determined that the electronic key 41 is not in the passenger compartment but outside the passenger compartment, the host vehicle mv enters an auto-lock standby state. Note that when the host vehicle mv enters the auto-lock standby state, the alarm device 51 provided in the host vehicle mv may sound a buzzer (see (ii) in FIG. 2).

  Thereafter, when the user carrying the electronic key 41 is away from the host vehicle mv by a predetermined distance and confirms that the electronic key 41 is outside the area outside the passenger compartment of the host vehicle mv, the automatic lock is activated. That is, even if the user does not lock (lock) the door, the door is automatically locked when the user leaves the vehicle mv (auto-lock operation in (iii) of FIG. 2). When the host vehicle mv is in an auto-lock operation, the alarm device 51 provided in the host vehicle mv may sound a buzzer or blink a lamp (see (iii) in FIG. 2).

  Next, operations performed by various devices of the door lock system according to the present embodiment in the above-described scenes (i) to (iii) of FIG. 2 will be described with reference to the flowchart of FIG.

  The process in the flowchart shown in FIG. 4 is performed, for example, by executing a predetermined program stored in a storage unit (not shown) provided in each of the smart control ECU 11 and the body ECU 12. The process in the flowchart shown in FIG. 4 is, for example, a process in which the user carries the electronic key 41 and gets off the own vehicle mv, and the process starts from a scene in which any door of the own vehicle mv is closed. And

  In step S1 of FIG. 4, the smart control ECU 11 performs key verification A. Specifically, the key verification A determines whether the electronic key 41 is in the passenger compartment (driver's seat, passenger seat, rear seat, trunk, etc.). If the smart control ECU 11 determines in step S2 that the electronic key 41 is not in the vehicle compartment (NO in step S2), the process can proceed to the next step S3.

  Note that the key verification is performed by communicating with the electronic key 41 and the receiver 21 and the outside transmitter 34 mounted on the host vehicle mv, and is set in advance in the electronic key 41 (control unit in the electronic key 41). This is performed depending on whether or not the ID code unique to the electronic key 41 stored matches the unique ID code stored in advance in the smart control ECU 11. If the ID codes match as a result of the key collation, in the example of FIG. 2, the electronic key carried by the user is recognized as the electronic key 41 of the own vehicle mv, and is received on the own vehicle side. Various communications between the smart control ECU 11 and the electronic key 41 are possible via the receiver, transmitter, etc. on the electronic key 41 side, such as the machine 21 and the transmitter 34 outside the vehicle.

  Returning to the description of FIG. 4, in step S <b> 3, the smart control ECU 11 and the outdoor transmitter of each door perform key verification B. Specifically, the smart control ECU 11 determines whether or not there is an electronic key 41 outside the passenger compartment. In the next step S4, when the smart control ECU 11 determines that the electronic key 41 is outside the vehicle compartment (YES in step S4), the process can proceed to the next step S5.

  In step S <b> 5, the smart control ECU 11 acquires, from the body ECU 12, for example, information indicating the open / closed state of each door of the host vehicle mv that is output to the body ECU 12 from a door lock control unit mounted on each door. And smart control ECU11 can advance a process to following step S6, when it is judged that all the doors are closed (it is YES at step S5). If the determination in step S5 is negative (NO in step S5), the smart control ECU 11 may, for example, turn on the door illumination mounted on the door for each open door (not shown). ).

  In step S6, the smart control ECU 11 enters an auto-lock standby state. More specifically, this is the state of (ii) in FIG. The auto-lock standby state will be described later.

  Here, a brief description of the correspondence between the processing from step S1 to step S6 in the flowchart of FIG. 4 described so far and the scene shown in FIG. 2 is as follows.

  As described above, as shown in the scene of FIG. 2 (i), the driver of the own vehicle mv gets off the own vehicle mv with the electronic key, and the user (for example, the driver of the own vehicle mv or the own vehicle mv Each door of the host vehicle is closed by a passenger who has been in the vehicle) (corresponding to step S1 to step S5). And as shown in the scene of (ii) of FIG. 2, when the electronic key 41 corresponding to the own vehicle mv is typically carried by the driver of the own vehicle mv and goes out of the passenger compartment, the own vehicle mv Then, the auto-lock standby state is set (corresponding to the auto-lock standby state in step S6).

  The auto-lock standby state is a state in which, for example, a user of the host vehicle mv carrying the electronic key 41 has moved from the passenger compartment of the host vehicle mv to the outside of the passenger compartment, and all the doors of the host vehicle mv have been closed. Thus, when the user moves away from the own vehicle mv from the auto-lock standby state, the door is automatically locked (see (ii) in FIG. 2).

  By the way, as mentioned above, getting off from the own vehicle mv is not limited to only the driver, and there may be other passengers. For example, suppose a case where a passenger is in the own vehicle mv and a passenger is in the passenger seat of the own vehicle mv. Then, leaving the passenger in the own vehicle mv (while the passenger is in the own vehicle mv), the driver carrying the electronic key 41 closes the door of the own vehicle mv and keeps the electronic key 41 in the own vehicle. After moving away from the vehicle mv and confirming that the electronic key 41 is outside the passenger compartment area, the door is automatically locked.

  In other words, the door is automatically locked when the driver moves away from the host vehicle mv even when the passenger is still in the host vehicle mv. When the passenger tries to get off the door, the door lock is unlocked. You have to open the lock again and you may feel annoyed.

  Further, for example, in the case of a vehicle in which a security system is mounted on the host vehicle mv together with the door lock system according to the present embodiment, the security function is simultaneously activated when the door is automatically locked by the door lock system. In many cases, when a passenger tries to get off the vehicle, the security function may give an alarm if the user tries to unlock the locked door lock, which impairs the convenience of the door lock system or security system. .

  Returning to the description of FIG. 4, in step S <b> 7 following step S <b> 6 in FIG. 4, the smart control ECU 11 determines whether or not there is an unlock sensor signal based on information from the door handle sensor 31. .

  In the present embodiment, an example in which an unlock sensor and a lock sensor are mounted on the door of the host vehicle mv as the door handle sensor 31 is described. Specifically, for example, the driver of the host vehicle mv touches the unlock sensor of the door handle sensor 31. By doing so, smart control ECU11 affirms the judgment of the said step S7 (it is YES at step S7), and advances a process to step S12.

  On the other hand, for example, if the driver of the host vehicle mv does not touch the unlock sensor of the door handle sensor 31, the determination in step S7 is negative (NO in step S7). And smart control ECU11 advances a process to step S8.

  In step S8, when the driver of the host vehicle mv touches the lock sensor of the door handle sensor 31, the determination in step S8 may be affirmed (YES in step S8), and the process may proceed to step S11.

  If the determination in step S8 is negative (NO in step S8), that is, if the driver or the like has not operated both the unlock sensor and the lock sensor of the door handle sensor 31, the smart control ECU 11 performs key verification B I do. In addition, since the specific process was demonstrated in said step S3, the description is abbreviate | omitted. In the next step S10, when the smart control ECU 11 determines that the electronic key 41 is outside the area outside the passenger compartment of the host vehicle mv (NO in step S10), the smart control ECU 11 can proceed to the next step S11. The scene in which the process in step S10 is denied is a normal situation in which the driver carrying the electronic key 41 closes the door of the host vehicle mv and moves away from the host vehicle mv while holding the electronic key 41. A scene is assumed.

  In step S11, the smart control ECU 11 executes auto-lock. At this time, the smart control ECU 11 may sound a buzzer with the alarm device 51 provided in the host vehicle mv (see (iii) in FIG. 2).

  On the other hand, if the determination in step S7 is affirmative (YES in step S7), the smart control ECU 11 proceeds to the next step S12 and enters an auto-lock cancel state. At this time, the smart control ECU 11 may sound a buzzer by the alarm device 51 provided in the host vehicle mv (see (iv) in FIG. 2).

  Here, a brief description of the correspondence between the processing from step S7 to step S12 in the flowchart of FIG. 4 described so far and the scene shown in FIG. 3 is as follows.

  As shown in the scene of FIG. 3 (v), the driver of the host vehicle mv touches the unlock sensor of the door handle sensor 31 (YES in the determination in step S7). When the electronic key 41 is outside the passenger compartment, that is, for example, when the driver carrying the electronic key 41 touches the unlock sensor of the door handle sensor 31, the auto-lock cancel state is entered, and is shown in the flowchart of FIG. As described above, the process in the flowchart ends without performing the auto-lock execution process from step S8 to step S11.

  That is, unlike the above-described scene of FIG. 2 (iii), as shown in the scene of FIG. 3 (vi), for example, the user of the own vehicle mv carrying the electronic key 41 moves away from the own vehicle mv, and the electronic Even if it is confirmed that the key 41 is outside the area outside the passenger compartment of the host vehicle mv, the door is not automatically locked and the security function is not activated.

  As described above, according to the door lock system according to the present embodiment, for example, a driver carrying the electronic key 41 in a scene where two people (typically a driver and a passenger) are on the host vehicle mv. When the vehicle gets off and touches the unlock sensor of the door handle sensor 31 of the host vehicle mv, the auto-lock is not executed. In other words, if the driver does not touch the unlock sensor of the door handle sensor 31, the result is (iii) in FIG. 2, and if the driver touches the unlock sensor of the door handle sensor 31, the process proceeds from (ii) to FIG. (Vi).

  Therefore, for example, in the case of a vehicle in which a security system is mounted on the host vehicle mv together with the door lock system according to the present embodiment, even if the passenger (passenger) tries to get off, no warning is given by the security function, The convenience of the door lock system and the security device is not impaired.

  In the above-described example, the mode in which the user (typically the driver carrying the electronic key) cancels the automatic lock by touching the unlock sensor of the door handle sensor 31 is described, but the present invention is not limited thereto. That is, for example, in the auto-lock standby state in step S6, a sensor or the like (not shown) that detects information indicating that the passenger is still in the passenger compartment of the host vehicle mv is provided for the vehicle of the host vehicle mv. Prepare indoors. Information indicating that the passenger is still in the passenger compartment of the host vehicle mv (for example, a seat belt is used, a predetermined weight is applied to the seat, and the passenger opens and closes the door). When the smart control ECU 11 obtains information (when such information is performed), the auto-lock cancel state may be set.

  The aspect demonstrated by the said embodiment shows a specific example only, and does not limit the technical scope of this invention at all. Therefore, any configuration can be adopted within a range where the effect of the present application is achieved.

  The door lock system according to the present invention is useful as a door lock system, a keyless entry system, or the like that automatically controls the lock of the door of the vehicle, which is suitable for the intention of the user of the host vehicle with a simple configuration.

11 ... Smart control ECU
12 ... Body ECU
21 ... Receiver 31, 32, 33, 34 ... Door 41 ... Electronic key 51 ... Alarm

Claims (1)

A door lock system that automatically drives the door lock of the vehicle and automatically locks the door lock when the electronic key goes out of the vehicle compartment and moves away from the vehicle,
Drive means for unlocking and unlocking the door lock of the vehicle;
Electronic key determination means for determining whether or not the electronic key is outside the vehicle cabin;
The door lock of the vehicle is automatically locked by communicating with the electronic key and determining that the electronic key is outside the passenger compartment of the vehicle and determining that the electronic key has moved away from the vehicle and controlling the driving means. Control means to
Occupant detection means for detecting whether there is an occupant in the vehicle interior of the vehicle, and at least one detection means of unlock sensor operation detection means for detecting that an unlock sensor provided in the door of the vehicle is operated; With
The control means communicates with the electronic key, and when it is determined that the electronic key is outside the vehicle compartment, the occupant detection means detects that there is an occupant in the vehicle compartment and At least one of cases where the unlock sensor operation detecting means detects that the unlock sensor provided on the door of the vehicle is operated is detected, and the electronic key determining means detects the electronic key. When it is determined that the vehicle is outside the passenger compartment of the vehicle, the door lock system does not lock the door lock automatically controlled by controlling the driving means.

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