JP2007126842A - Child lock system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a child lock system capable of further surely locking a child. <P>SOLUTION: This child lock system has a door lock mechanism for locking and unlocking a door lock by driving of a door lock actuator 7 and a door lock control part 14 for controlling the driving of the door lock actuator 7. A child lock switch 2 for operating and inputting ON/OFF of a child lock of a plurality of doors is arranged in the vicinity of a driver's seat, and a door lock switch 3 for operating and inputting ON/OFF of a door lock is arranged on the respective insides of the plurality of doors. A door lock controller 1 invalidates input of the door lock switch 3 in the door of setting the child lock to ON by the child lock switch 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention belongs to the technical field of a child lock system that prevents a door from being accidentally opened by a child's operation when a child is mainly boarded in a vehicle.

In the conventional child lock system, all the doors are locked and unlocked by operating the window lock switch, and after all the doors are locked, any door is unlocked by operating the door lock switch. Then, this is detected by the lock position switch and the unlocked door is locked again (for example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 10-140899 (page 2-4, full view)

  However, since the conventional child lock system can be unlocked for a moment, there is a problem that the door may be opened during that time.

  The present invention has been made paying attention to the above-mentioned problems, and an object of the present invention is to provide a child lock system that can make child lock more reliable.

  In order to achieve the above object, the present invention provides a child lock system comprising a door lock mechanism that locks and unlocks a door lock by driving an actuator, and a control unit that controls the drive of the actuator. A child lock switch is provided near the driver's seat for operation input to turn on / off the door child lock, and a door lock switch for operation input to turn on / off the door lock is provided inside each door, and the child lock is turned on by the child lock switch. The door is configured to disable the input of the door lock switch.

  Therefore, in this invention, it can open from an outer side and can make a child lock more reliable.

  Hereinafter, an embodiment for realizing the child lock system of the present invention will be described based on the first embodiment.

First, the configuration will be described.
FIG. 1 is a system block diagram of the child lock system according to the first embodiment. FIG. 2 is an explanatory diagram illustrating a layout example of main switches of the child lock system according to the first embodiment.
The child lock system according to the first embodiment is integrated with a keyless system.
The door lock controller 1 mainly includes a vehicle state determination unit 11, a child lock control unit 12, a keyless authentication unit 13, a door lock control unit 14, and an antenna 15, and inputs from each switch, inputs from each state switch, The keyless system and the child lock system are controlled by input from the vehicle and communication with the portable device 10.
The vehicle state determination unit 11 determines, based on inputs from the room temperature sensor 8 and the vehicle information device 9, whether the vehicle is at room temperature or whether the vehicle is in an emergency state where the door lock should be released.

The child lock control unit 12 stores the on / off setting of the child lock of each door by the operation input to the child lock switch 2, and outputs the setting of each door to the door lock control unit 14.
The keyless authentication unit 13 validates the operation of the door request switch 4 by communicating with the portable device 10 through the antenna 15 and authenticating the identification information.
The door lock control unit 14 grasps the current state of each door from the door lock state switch 5 and the door open / close state switch 6, and the door lock of each door according to the input from the door lock switch 3 and each control unit. Control is performed to drive the actuator 7.

The child lock switch 2 is provided on an instrument panel in the vicinity of the driver's seat as shown in FIG. 2 and is used to input the on / off of the child lock of each door.
As shown in FIG. 2, the door lock switch 3 is provided inside each door, and is used to input the unlocking and locking of each door lock.
As shown in FIG. 2, the door request switch 4 is provided around the door knob on the outside of each door, and performs an operation input for unlocking the door lock with authentication by the portable device 10.

The door lock state switch 5 detects whether the door lock is unlocked or locked in each door, and outputs the detected door lock to the door lock control unit 14.
The door open / close state switch 6 detects whether the door is in an open state or a closed state in each door, and outputs the detected signal to the door lock control unit 14.
The door lock actuator 7 has a configuration in which a motor is combined with a door lock mechanism, and locks and unlocks the door lock by driving.

The indoor temperature sensor 8 detects the temperature in the vehicle interior and outputs it to the vehicle state determination unit 11.
The vehicle information device 9 may be any device that inputs vehicle information to the door lock controller 1 from the vehicle side. However, it is desirable to be able to communicate that when the vehicle is in an emergency state. Further, the vehicle information device 9 may be connected to a plurality of unspecified vehicle devices via an in-vehicle communication network. In this case, it is desirable that information indicating that the vehicle is in an emergency state is obtained as a message sent as a connected vehicle device or a communication arrangement.
The portable device 10 stores therein an ID code that is identification information, and performs authentication by transmitting the ID code to the keyless authentication unit 13.

Next, the operation will be described.
[Child lock processing]
FIG. 3 is a flowchart showing the flow of the child lock process executed by the door lock controller of the child lock system according to the first embodiment. Each step will be described below. Note that the following processing is performed independently at each door.

  In step S1, it is determined whether or not the vehicle is in an emergency state due to an accident or the like. If the vehicle is in an emergency state, the process proceeds to step S11. If not, the process proceeds to step S2.

  In step S2, it is determined whether or not the temperature in the passenger compartment exceeds a predetermined temperature at which child locking can be performed, and if so, the process proceeds to step S13. Proceed to S3.

  In step S3, it is determined whether or not the child lock switch 2 is on. If it is on, the process proceeds to step S4, and if it is off, the process proceeds to step S13.

  In step S4, it is determined whether or not the door is closed. If it is closed, the process proceeds to step S5, and if it is open, the process proceeds to step S8.

  In step S5, the child lock state is set, and the operation of the door lock switch 3 in the passenger compartment is invalidated.

  In step S6, it is determined whether or not the door is unlocked. If the door is unlocked, the process proceeds to step S7. If the door is locked, the process proceeds to step S8.

  In step S7, the door lock actuator 7 is operated to lock the door.

  In step S8, it is determined whether there is an unlock request by the door request switch 4. If there is an unlock request, the process proceeds to step S9, and if there is no unlock request, the process proceeds to step S14.

  In step S9, it is determined whether or not the automatic lock timer is being counted. If it is counting, the process is terminated, and if not counting, the process proceeds to step S10.

  In step S10, it is determined whether or not the count of the automatic lock timer has reached a predetermined time. If the predetermined time has been reached, the process proceeds to step S17. If the predetermined time has not been reached, the process is terminated.

  In step S11, it is determined whether or not the door is locked. If the door is locked, the process proceeds to step S12. If not, the process proceeds to step S13.

  In step S12, the door lock actuator 7 is operated to bring the door into an unlocked state.

  In step S13, the child lock state is released, and the operation of unlocking the door lock from the passenger compartment is validated.

  In step S14, keyless authentication processing is performed by communicating with the portable device 10.

  In step S15, the door lock actuator 7 is operated to bring the door into an unlocked state.

  In step S16, the automatic lock timer is started and the elapsed time is measured.

  In step S17, the automatic lock timer is cleared.

  In step S18, the door lock actuator 7 is operated to lock the door.

[About Child Rock]
Here, child lock will be described.
The child lock can only be opened from the outside of the vehicle. In addition, most switches that enable / disable the child lock mechanism are installed in the vicinity of the lock mechanism and can be operated only when the door is opened. Therefore, when you forget that child lock is enabled and put an adult on it, it is inconvenient that the adult who got on can not open the door by himself or forgetting that it is unlocked and putting a child on it There was annoying to deal with from time to time.

Furthermore, even in the event of an emergency, the door could not be opened from the inside of the locked door.
In the child lock system of the first embodiment, these problems are solved in addition to the conventional problems described above.

[Child lock system with control including keyless system]
In the first embodiment, a child lock system by control is configured integrally with the keyless system.
Therefore, there is no inner door lock operation knob as in the prior art, and the lock operation is performed by the door lock switch 3.

(a) When performing child lock When performing child lock, turn on the child lock switch 2 that is provided near the driver's seat.
Then, the unlocking operation of the door lock switch 3 in the vehicle interior is invalidated by the process of step S5. When the door is closed in this state, the door is automatically locked (locked) in the process of step S7 by the door lock actuator 7.
By maintaining the invalidation of the unlocking operation, the child lock state is maintained, and the child is prevented from accidentally opening the door while traveling.

(b) When releasing the child lock To release the child lock, turn off the child lock switch 2.
Then, the child lock is released by the processing in step S13, and the operation of the door lock switch 3 in the vehicle interior becomes effective.

(c) When the door is opened from the outside in the child lock state In order to open the door from the outside in the child lock state, it is provided around the door knob while the person holding the portable device 10 is in the vehicle or in the vicinity of the vehicle outside the vehicle. The requested door request switch 4 is pushed. Then, in the process of step S14, communication is performed between the keyless authentication unit 13 and the portable device 10, and authentication of the ID code is performed.
When authentication is established, the door lock is unlocked (unlocked) by the process of step S15.

However, when the door is opened from the outside in the child lock state, the automatic lock timer is started in the process of step S16, and the door is locked in the process of step S18 after the set time for closing the door elapses. .
Thereby, even if a child gets on and off, for example, the child lock state is maintained without any operation, which is an easy operation.

(d) When the temperature in the passenger compartment is higher than the set temperature If the temperature in the passenger compartment becomes higher than the preset temperature, the child may feel unwell, etc. If there is an occupant, it can be noticed and treated. In the child lock system according to the first embodiment, the vehicle state determination unit 11 determines the temperature detection of the indoor temperature sensor 8 when the child lock is parked, the child is left in the vehicle, and the driver leaves the vehicle. When the vehicle interior temperature exceeds the preset temperature as a result of steps S2 to S13, the child lock is released to enable the door lock operation so that the child can come out from the inside by himself. ing.

(e) When the vehicle is in an emergency state The fact that the vehicle is in an emergency state is detected from the vehicle information device 9 or from the state of its communication line, and is determined by the vehicle state determination unit 11.
In this case, the door lock is forcibly unlocked (unlocked) by the process of steps S1 → S11 → S12 so as not to prevent emergency evacuation.

(f) Comparison with the prior art In the child lock system of the first embodiment, the door lock (locking) is achieved when the door is closed by the process of steps S3 → S4 → S5 → S6 → S7 when the child lock is on. Is done. Further, when the door is opened from the outside, the door is quickly locked as the set time elapses.
That is, in the child lock system of the first embodiment, an unnecessary unlock state does not occur.
Conventionally, this is a system in which the door is locked again after detecting the unlock, and the child lock originally prevents the child from opening the door uncertainly. It is not preferred to occur.
Therefore, the child lock system according to the first embodiment is a child lock system with higher reliability than before.

  Furthermore, conventionally, when the door is locked, the door cannot be opened from the outside. However, in the first embodiment, authentication is established after the operation input of the door request switch 4 by integrating with the keyless system. Thus, the door lock is unlocked and the door can be opened. Therefore, it is possible to maintain the function that the door can be opened from the outside at the time of the more mechanical child lock than that shown in the prior art, and the convenience at the time of child lock is ensured.

(g) About integration with keyless system In the first embodiment, the child lock system includes the keyless system and is integrated.
However, the function as the keyless system is ensured without shortage by communication between the portable device 10 and the keyless authentication unit 13 and control of the door lock control unit 14 based on information from the keyless authentication unit 13.

As a child lock system, by integrating with a key system, opening a door from the outside in the child lock state can be limited when authentication is established. This is preferable as a child lock system on the premise that a child is in the vehicle, because it can improve crime prevention.
Furthermore, as a keyless system, by integrating it with the child lock system, unnecessary door unlock states can be reduced, and crime prevention can be improved.

Next, the effect will be described.
In the child lock system according to the first embodiment, the following effects can be obtained.

  (1) A child lock system comprising: a door lock mechanism that locks and unlocks a door lock by driving a door lock actuator 7; and a door lock control unit 14 that controls the drive of the door lock actuator 7. A child lock switch 2 is provided in the vicinity of the driver's seat for operation input of on / off of the child lock of the door, and a door lock switch 3 for operation input of on / off of the door lock is provided inside each of the plurality of doors. Since the input of the door lock switch 3 is invalidated at the door whose child lock is turned on by the switch 2, the child lock can be made more reliable.

  (2) A door open / close state switch 6 for detecting the door open / close state is provided. When the child lock switch 2 is on, the door lock controller 1 drives the door lock actuator 7 to lock the door when the door close is detected. Therefore, it is possible to make child lock more reliable without causing an unnecessary unlocked state.

  (3) A portable device 10 that stores and transmits identification information is provided, and a keyless authentication unit 13 that performs authentication by communication with the portable device 10 is provided. The door lock controller 1 unlocks and locks the door lock after authentication. It is also used to control the keyless system to be controlled, and in the child lock state, when authentication with the portable device 10 is established, the door is opened from the outside of the vehicle. Therefore, in the child lock state, the door is opened from the outside on condition that the authentication is established. Only a trusted person can open the door from the outside even in the child lock state.

  (4) An indoor temperature sensor 8 for detecting the temperature in the vehicle interior is provided, a vehicle state determination unit 11 is provided for determining whether the temperature in the vehicle interior has reached a preset temperature, and the door lock controller 1 is When the temperature in the passenger compartment reaches the set temperature, the child lock state is released, so that the child can open the door by himself when the child feels sick.

  (5) A vehicle state determination unit 11 that determines whether or not the vehicle is in an emergency state based on information from the vehicle is provided, and the door lock controller 1 releases the child lock state when the vehicle is in an emergency state. The emergency evacuation can be prevented.

  The child lock system of the present invention has been described based on the first embodiment. However, the specific configuration is not limited to these embodiments, and the gist of the invention according to each claim of the claims. As long as they do not deviate, design changes and additions are permitted.

In the child lock system of the present embodiment, the keyless system is included and integrated. However, the child lock system may be integrated with a system that performs communication with the portable device and causes the vehicle to perform another operation by authentication. For example, the engine may be started by communication with a portable device, or the air conditioner may be started.
In the keyless system integrated with this embodiment, authentication and door unlock operation are performed by request switch operation input. However, the request switch is not provided and the unlock operation is performed by authentication. May be.
In this embodiment, all the operations are independent for each door, but the operation may be performed in the same manner by dividing the operation into the front door and the rear door.

It is a system block diagram of the child lock system of Example 1. It is explanatory drawing which shows the example of a layout of the main switches of the child lock system of Example 1. FIG. It is a flowchart which shows the flow of the child lock process performed with the door lock controller of the child lock system of Example 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door lock controller 11 Vehicle state judgment part 12 Child lock control part 13 Keyless authentication part 14 Door lock control part 15 Antenna 2 Child lock switch 3 Door lock switch 4 Door request switch 5 Door lock state switch 6 Door open / close state switch 7 Door lock Actuator 8 Indoor temperature sensor 9 Vehicle information device 10 Portable device

Claims (5)

A door lock mechanism that locks and unlocks the door lock by driving the actuator;
A control unit for controlling the driving of the actuator;
A child lock system comprising:
A child lock switch is provided in the vicinity of the driver's seat for operation input of turning on / off the child lock for multiple doors.
A door lock switch for operating the door lock on / off is provided inside each door,
The control unit invalidates the input of the door lock switch in a door in which the child lock is turned on by the child lock switch.
A child lock system characterized by that. The child lock system according to claim 1.
A door open / close state detection means for detecting the open / close state of the door is provided,
The controller is
When the child lock switch is on, when the door is closed, the actuator is driven to lock the door.
A child lock system characterized by that. In the child lock system according to claim 1 or 2,
A portable device for storing and transmitting identification information is provided,
Providing an authentication means for performing authentication by communication with the portable device;
The controller is
It also serves as a control of a keyless system that controls unlocking and locking of the door lock after authentication, and permits door opening from outside the vehicle when authentication with the portable device is established in the child lock state.
A child lock system characterized by that. In the child lock system according to any one of claims 1 to 3,
An indoor temperature detecting means for detecting the temperature in the passenger compartment is provided,
A determination means is provided for determining whether or not the temperature in the passenger compartment has reached a preset temperature.
The controller is
When the temperature in the passenger compartment reaches the preset temperature, the child lock is released.
A child lock system characterized by that. In the child lock system of any one of Claims 1-4,
A determination means is provided for determining whether the vehicle is in an emergency state based on information from the vehicle,
The controller is
If the vehicle is in an emergency state, cancel the child lock state.
A child lock system characterized by that.

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