JP2000314257A - Vehicle door lock device and door lock method - Google Patents

Abstract

(57) [Problem] To provide a vehicle door lock and a method for securing the security of a parked vehicle and preventing an occupant from remaining in a vehicle compartment during parking and not being trapped. When an occupant is left in a vehicle cabin when a door is locked during parking, a reduce guard switch is turned on to set only a normal lock state, or an intrusion sensor or a seat switch is used to set a normal lock state. When the occupant does not remain in the vehicle cabin by detection, the deadlock state is set. When the occupant remains in the vehicle cabin, the deadlock state is not set, and only the normal lock state is set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device, and more particularly to a vehicle door lock device that not only effectively prevents theft of a vehicle but also prevents a situation where an occupant who wants to go out of the vehicle is locked in a vehicle compartment.

[0002]

2. Description of the Related Art In many cases, when a vehicle is parked, a door is set to a deadlock state instead of a normal lock state, and a security function is set to prevent theft. . Here, the normal lock state is a so-called general door lock state, and refers to a state in which the door can be opened by pulling the inner door knob from the vehicle interior to unlock the door. The lock operation to reach such a normal lock state is performed by a manual lock operation from the vehicle interior.

On the other hand, the deadlock state means that, apart from the normal door lock (normal door lock) state, the door can be opened by pulling the door knob from outside the vehicle compartment or by pulling the inner door knob from the vehicle compartment. A forced door lock state that cannot be performed. The door lock operation to reach such a deadlock state is performed through a normal lock state and then to a deadlock state by a door lock operation using a wireless key and a door key from outside the vehicle compartment. Note that the unlocked state refers to a state where the door can be freely opened from inside and outside the vehicle.

In the above-described operation process, as shown in FIG. 5, when the vehicle is parked, a normal lock is operated from an unlocked state to a normal lock state, and a deadlock is operated from the normal lock state. To enter the deadlock state. On the other hand, when releasing parking, the deadlock state is operated to shift to the normal lock state by activating the undeadlock, and further, the normal lock state is operated to unlock to shift to the unlocked state.

[0005] By the way, depending on the use condition of the vehicle, there is a case where an occupant (for example, an elderly person or a sick person) is left in the vehicle and the vehicle is parked. Conventionally, even in such a case, the door is normally locked. Set to deadlock state instead of state. Further, depending on the vehicle, after a door is locked with all the doors closed, if a certain period of time elapses in that state, an alarm is set and a deadlock state is set. However, even in this case, if such an operation is performed while the occupant remains in the cabin, the occupant will be trapped in the cabin.

[0006]

As described above, in the prior art, even when an occupant remains in the vehicle interior, the door is set in a deadlock state, and as long as the vehicle is set in the deadlock state, the door will not go out of the vehicle. The occupant cannot open the door from the passenger compartment. Therefore, in order to avoid the state in which the occupant who wants to go out of the vehicle is locked in the vehicle interior, it is necessary to improve the conventional deadlock state to a more flexible state.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to secure the safety (security) of a parked vehicle in view of the above-described problems, and to effectively prevent theft of a parked vehicle, and It is an object of the present invention to provide a door lock device, particularly a vehicle-mounted door lock device, which can not only prevent intrusion from outside the vehicle but also reliably prevent a situation where an occupant who wants to leave the vehicle from the vehicle room is locked in the vehicle room.

That is, in one embodiment of the present invention, when the vehicle is parked with the occupant left in the vehicle interior, the door is not set in the deadlock state and the door is normally locked (ie, the door knob is pulled from the vehicle interior). The door can be opened by this.)
This prevents the occupant from being trapped in the passenger compartment while maintaining the anti-theft function of the vehicle.

Further, in another aspect of the present invention, it is determined whether or not an occupant remains in the vehicle compartment by an intrusion sensor or a seating switch for detecting the presence of the occupant within a fixed time after the door is locked, and whether or not the occupant remains in the vehicle compartment is determined. By setting the vehicle to a deadlock state only when no occupant is present, the security of the parked vehicle is maintained and the occupant is prevented from being trapped in the passenger compartment.

[0010]

Means for Solving the Problems Claims 1, 2, 8 and 9
According to the invention of the present invention, when the driver goes out of the vehicle and the occupant such as an elderly person or a sick person remains in the vehicle interior and parks in a state where the active sensor is not activated, in one embodiment of the present invention,
Since the door is not set to the deadlock state during parking, the vehicle is parked in the normal lock state (that is, the door can be opened by pulling the door knob from the vehicle interior). Not only can the theft be effectively prevented and entry from outside the vehicle can be prevented, but also a situation in which an occupant who wants to go out of the vehicle is trapped in the vehicle interior can be reliably prevented.

According to the invention of claims 4 to 7, 12 and 13, when the driver goes out of the vehicle and parks in the vehicle with the occupant such as an elderly person or a sick person, the vehicle is locked after the door is locked. Within a certain period of time, determine whether or not an occupant remains in the passenger compartment by using an intrusion sensor or a seat switch that detects the presence of an occupant in the passenger compartment, and set the deadlock state only when there is no occupant in the passenger compartment. Accordingly, it is possible to prevent the occupant from being trapped in the vehicle interior while maintaining the security of the parked vehicle.

[0012]

FIG. 1 is a block diagram showing an embodiment of a vehicle door lock device according to the present invention. Control controller for door lock and security functions (EC
Inputs to U) include a wireless tuner, a lock / unlock switch (SW) in a door key cylinder, a reduce guard switch (RG-SW), an interlock switch in an ignition key cylinder (IG interlocking switch), and a door open / close switch (D). -SW), trunk open / close switch (T-SW), bonnet open / close switch (B-SW),
Detection signals are input from an intrusion sensor, a tilt sensor, a seat switch, and the like.

On the other hand, the ECU which has received the detection signals from these switches and the respective sensors performs signal processing according to a processing flowchart described later, turns on the LED for monitoring the reduce guard state, and provides a siren or flasher as alarm means. Start. Further, the ECU activates the deadlock motor that activates the deadlock and the normal lock motor that activates the normal lock.

The operation of each of the above components will be briefly described below. The ECU for door lock and security functions is composed of a microprocessor, and controls the setting and release of vehicle security functions such as control of lock / unlock of vehicle doors, alarm activation control to protect the vehicle from thieves, etc. Control controller.

The wireless tuner receives a radio signal (lock / unlock signal) from a wireless key (transmitter) carried by a user who has left the vehicle after parking the vehicle by an antenna, and converts the signal into an electric signal. This is a receiver that activates a lock / unlock relay linked to a solenoid.・ Lock / unlock SW inside the door key cylinder is
This switch is provided in the door key cylinder and detects lock / unlock depending on the direction (left / right) of turning the key mechanically.

[0016] Reduce guard SW (as described above,
When the occupant is parked with the occupant left in the passenger compartment, the active sensor (that is, the disconnection SW)
This is a mode selection switch that sets the door lock state to the normal lock state (that is, does not set the deadlock state) when the intrusion sensor and the inclination sensor are not operated.

Interlock S in the ignition key cylinder
W is a switch that detects the on / off state of the ignition (IG) when the engine is started. The door open / close switch is a switch that detects a door open / close state (any door is open or all doors are closed). The trunk opening / closing SW is a switch for detecting a trunk opening / closing state.

The hood opening / closing switch is a switch for detecting the hood opening / closing state. -The intrusion sensor is a sensor that detects the presence of an occupant in the passenger compartment. The tilt sensor is a sensor that detects a tilt or a swing of the vehicle body that occurs when the vehicle is towed. The seating switch is a switch for detecting the seating of the occupant in the passenger compartment.

Normal lock motor (Mn) is EC
This is a door lock motor for controlling a normal lock state controlled by U. The door lock motor is in a normal lock state when energized in a normal rotation direction (see an arrow), and can be returned to an unlocked state when energized in a reverse rotation direction. The deadlock motor (Md) is a door lock motor for setting a deadlock state. When the power is supplied in the normal rotation direction (see the arrow), the deadlock motor is set, and when the power is supplied in the reverse direction, the motor returns to the normal lock state. When the normal lock motor is energized in the reverse direction, it can be returned to the unlocked state.

LED for monitoring the status of the reduce guard
Is an LED that lights up to notify the user of the reduce guard mode state.・ Siren is in the security function set state,
The illegal act of the thief (for example, opening the door, breaking the window glass, entering the vehicle interior, towing the vehicle, etc.) is detected by each switch and sensor, and under the control of the ECU that receives the sound, To intimidate the thief and inform the surroundings of the incident.

The flasher is provided for the same purpose as the siren, and when a security function is set, a thief is illegally operated (for example, opening a door, breaking a window glass, entering a vehicle compartment, towing a vehicle, etc.). Is detected by each switch and sensor, and under the control of the ECU that receives this, the light beam is used to threaten the thief and inform the surroundings of the abnormal situation.

Incidentally, a passenger such as an occupant or a dog left in the cabin may move around in the cabin, and this action may cause a false alarm. In order to avoid such false alarms, as a method that is often performed, parking is performed in a state where the intrusion sensor, the inclination sensor, and the like do not operate. Such a state in which the active sensor is not operated is usually referred to as a “reduce guard state”, a “disconnection state”, or the like.

The following is a brief description of an example of a method that has already been put into practical use as a method for shifting to and releasing from the reduce guard state. All doors closed, trunk / rear doors closed, ignition (IG) off, key removed from IG lock. Pressing and holding the center lock button (driver lock button) for 3 seconds or more puts the system in the initial locked state and unlocks again after 3 seconds (this makes the user aware of the disconnection) Because of that).

The system indicates and recognizes that the ultrasonic sensor (ie, the intrusion sensor) and the tilt sensor have been disconnected, ie, have not been activated. Thereby, the system shifts to the “disconnection mode” (that is, the reduce guard mode). Since it is disconnected,
Of course, input signals from these sensors are ignored. That is,
In the reduced guard state, the signals from the active sensors, that is, the intrusion sensors and the inclination sensors are disconnected as an alarm system. On the other hand, as a group of sensors that are activated when an alarm is set, there are a window glass sensor, a trunk opening / closing switch, a hood opening / closing switch, a door opening / closing switch, and the like. In the reduce guard state, these sensors are operated.

Further, when releasing the reduce guard state, the ignition switch is turned on, the alarm system is shifted to the drive mode, and the "disk connection sensor" is reset and released. Next, in the vehicle door lock device shown in FIG.
The method for shifting to the reduce guard state and the operation of the ECU will be described below. Before describing the details with reference to the flowchart of FIG. 2, the general operation sequence will be described below. That is, first, the reduce guard SW is turned on.

Next, the reduce guard state monitor LED is turned on to notify the driver or the like that the state has shifted to the reduce guard state. Next, a door lock signal is generated by a wireless key (or a mechanical key) from a user who has left the vehicle. Next, a normal lock operation is performed instead of the deadlock operation.

Door open, trunk open, bonnet open,
A function for generating an alarm by a change of a switch, such as IG ON, is set to an activated state, while an active sensor such as an intrusion sensor or a tilt sensor is set to a non-activated state. FIG. 2 and FIG. 3 are processing flowcharts showing in detail the operation of the ECU as one embodiment of the present invention.
In the drawing, RG indicates a reduce guard, and IG indicates an ignition. When the door lock ECU is first activated, the following processing is performed.

First, in step 100, the RG flag indicating whether or not the mode is the reduce guard mode is cleared for initialization (that is, the mode is not changed to the reduce guard mode). Next, in step 200, the on / off state of the IG is checked. When the reduce guard mode has already been set, the state of the IG is checked in order to eliminate the reduce guard mode. If the IG is on, the RG flag is cleared in step 201. On the other hand, when the IG is off, the previous mode is continued and the routine proceeds to step 210.

Next, at step 210, the on / off state of the reduce guard switch (RG-SW) is checked.
A flag is set, and at step 212, R is set to notify the driver that the vehicle has shifted to the reduce guard mode.
The G status monitor LED is turned on. In order to reduce the dark current, the RG state monitoring LED is turned off after a certain period of time by a timed timer. If the RG-SW is off, steps 211 and 212 are bypassed and step 300 is performed.
Move to

Next, in step 300, in the state of "IG off and all doors closed and trunk closed and bonnet closed", "wireless lock or door key lock"
It is determined whether the security function set condition is satisfied. Next, at step 310, when the security function set condition is satisfied at step 300, the door is shifted to the normal lock state, and then at step 32
At 0, the security function is set and the vehicle is set to the alarm state.

Next, in step 400, the RG flag is checked, and the control logic is switched as shown in FIG. 3 for the case of set (reduced guard mode state) and clear (reduced guard mode is not). That is, if the RG flag is cleared in step 400, a deadlock state is activated in step 410, and in steps 411 and 412, an alarm factor (movement of an object in the vehicle compartment by an intrusion sensor, vehicle shake by an inclination sensor, (Step 413) when the inclination is detected, the IG is turned on by the IG switch, the door is opened by the door open / close switch, the trunk is opened by the trunk open / close switch, and the hood is opened by the bonnet open / close switch.
Then, the actuator is driven so that the siren sounds and the flasher blinks, and the alarm is activated.

On the other hand, in step 414, step 41
If the detection is not performed in steps 1 and 412, and a method (wireless unlock or door key unlock) is detected as a method for releasing the set state of the security function, in step 415, the undead lock state is activated.
In step 430, the unlocking is activated. In step 431, the security function is unlocked (released), and the process returns to step 200 (see FIG. 2).

If the RG flag is set at step 400 in FIG. 2, steps 420, 421, and 42 are executed.
In step 2, the same processing as in steps 412, 413, and 414 described above is executed, and the flow advances to step 430. As is apparent from the figure, the difference between this step and the case where the above-mentioned RG flag is cleared (difference between routes (A) and (B)) is that the security function is set, but the intrusion sensor and the inclination That is, the sensor is not operated and the deadlock state is not set. That is, the route (A) is a feature of one embodiment of the present invention.

As described above, in one embodiment of the present invention, the reduce guard switch (RG-SW) is turned on and the RG flag is set (step 400) so as not to shift to the deadlock state. , RG-SW is not always shifted to the deadlock state. On the other hand, when the occupant leaves the vehicle without turning off the RG-SW, the vehicle does not shift to the deadlock state, so that the security is inferior to the vehicle parked in the deadlock state. Furthermore, the occupant also has trouble in setting and releasing the RG-SW.

Thus, in one embodiment of the present invention, RG-
As a result of setting a state in which the state does not manually shift to the deadlock by turning on the SW, room for improvement in security and inconvenience in usability remain as described above. Therefore,
In another aspect of the present invention, to further improve one aspect of the present invention, for detecting the presence of an occupant in a passenger compartment, for example,
Utilizing an intrusion sensor or a seat switch, etc., a determination means is provided for determining whether or not an occupant remains in the vehicle interior, and only when the determination means determines that the occupant remains in the vehicle interior, a normal lock state is set. If no occupant remains in the cabin, the deadlock state is set.

FIG. 4 shows an ECU according to another embodiment of the present invention.
5 is a partial flowchart of the operation of FIG. First, step 5
At 00, it is determined whether or not the normal lock is input. Normal lock input includes wireless lock,
Locking by a door key, manual locking, re-locking (re-locking after a fixed time), locking by a centralized door lock switch, and the like. Next, when the normal lock is input (YES), the normal lock is output in step 501. Further, in step 502, it is determined whether or not the following conditions are satisfied as a vehicle state: no key, IG off, all doors closed, and trunk closed.

If all of these conditions are satisfied (YES), it is determined in step 503, for example, whether or not an occupant remains in the vehicle cabin by an intrusion sensor. If the occupant is not left in the vehicle interior by the detection of the intrusion sensor (NO), the deadlock state is activated in step 504, and the process proceeds to step 411 in FIG. On the other hand, if it is determined in step 503 that the occupant remains in the vehicle interior due to the detection of the intrusion sensor (YES), the process proceeds to step 411 without activating the deadlock state.

As means for determining whether or not an occupant remains in the vehicle cabin, in addition to the above-described intrusion sensor, a seating switch, room collation of an electronic key, or the like can be used.
At this time, when the determination is made by the seat switch, the steps after step 411 in FIG. 3 can be omitted. That is, a device without the security function may be used. In another embodiment of the present invention, a reduce guard switch (RG-
When the switch SW) is ON, the active sensor (that is, the intrusion sensor or the inclination sensor) may not be operated when the security function is set.

Further, in the above description, the ECU for the door lock and the security function is described. However, as another embodiment, the ECU for the door lock and the security function is used.
For door lock only with door lock function without security function (vehicles without security function)
Even in the case of the above, the problem can be solved by performing processing in the same manner as described above.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a vehicle door lock device according to the present invention.

FIG. 2 is a detailed process flowchart (part 1) of the operation of the ECU according to one embodiment of the present invention.

FIG. 3 is a detailed process flowchart (part 2) of the operation of the ECU according to one embodiment of the present invention.

FIG. 4 is a partial flowchart of the operation of the ECU according to another embodiment of the present invention.

FIG. 5 is an explanatory diagram of a transition process of each door lock state.

[Explanation of symbols]

 RG-SW: Reduce guard switch D-SW: Door open / close switch T-SW: Trunk open / close switch B-SW: Bonnet open / close switch Md: Deadlock motor Mn: Normal lock motor

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B60R 25/10 612 B60R 25/10 612 621 621 E05B 49/00 E05B 49/00 K F-term (Reference) 2E250 AA21 BB08 FF24 FF36 HH02 JJ03 JJ05 LL01 PP15 SS01 SS02 SS04 SS06 SS08 TT03 UU01 VV00

Claims (13)

[Claims] 1. A vehicle door lock device having means for enabling both a normal lock state and a deadlock state to be set, wherein only the normal lock state is set when an occupant remains in a vehicle cabin when the vehicle is parked. A door lock device for a vehicle having a normal lock state setting means. 2. The normal lock state setting means includes means for detecting at least opening and closing of a reduce guard switch for setting an active state or an inactive state of an active sensor, opening and closing of an ignition switch, opening and closing of a door, and opening and closing of a trunk. 2. The vehicle door lock device according to claim 1, further comprising means for detecting opening and closing and means for detecting lock / unlock of a wireless key or a door key. 3. The vehicle door lock device according to claim 2, wherein the active sensor includes an intrusion sensor that detects the presence of an occupant in the vehicle interior, and an inclination sensor that detects the swing and inclination of the vehicle. 4. A vehicle door lock device having means for enabling setting of both a normal lock state and a deadlock state, wherein a judgment means for judging whether or not an occupant remains in a vehicle cabin when the vehicle is parked; A vehicle door lock device having a normal lock state setting means for setting only the normal lock state when the occupant is determined to remain by the judgment means. 5. The vehicle door lock device according to claim 4, wherein said determination means is means for detecting opening and closing of a reduce guard switch. 6. The vehicle door lock device according to claim 4, wherein the determination unit is an intrusion sensor that detects the presence of an occupant in the vehicle interior. 7. The vehicle door lock device according to claim 4, wherein said determination means is a seat switch for detecting a seat of an occupant in a vehicle compartment. 8. A door lock method for a vehicle door lock device having means for enabling setting of both a normal lock state and a deadlock state, the method comprising: A door lock method including a step of setting only a normal lock state. 9. The step of setting only the normal lock state includes determining whether a reduce guard flag indicating a state of a reduce guard switch for setting an active state or an inactive state of the active sensor is set or cleared. Determining whether the ignition switch is on / off, opening / closing a door, and opening / closing a trunk; if any of the ignition switch, door, or trunk is on or off, Activating the alarm if open, and determining if the ignition switch, door or trunk is locked or unlocked by a wireless key or door key if any of the switches are off or closed. And the wireless key or door If the wireless key or the door key is unlocked, the unlocking is activated, and the security in the vehicle is returned. The door locking method according to claim 8, further comprising: releasing a function. 10. The step of determining whether a reduce guard flag indicating a state of the reduce guard switch is set or cleared, if the clear guard flag is cleared, sets the deadlock state. Or the door lock method according to 9. 11. The door lock method according to claim 9, wherein the active sensor comprises an intrusion sensor for detecting the presence of an occupant in the vehicle interior, and an inclination sensor for detecting the swing and inclination of the vehicle. 12. A door lock method in a vehicle door lock device having means for enabling setting of both a normal lock state and a deadlock state, the method comprising: determining whether an occupant remains in a vehicle cabin when the vehicle is parked. A door locking method including a determining step of determining and a step of setting only the normal lock state when it is determined that the occupant remains in the determining step. 13. The door locking method according to claim 12, further comprising a step of shifting to the deadlock state when it is determined in the determining step that there is no occupant in the vehicle interior.