JP2006219967A - Door locking device for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door locking device for an automobile for locking and unlocking doors by appropriately determining the locked and unlocked state of each seat door in the automobile with no setting of a door lock knob and a door lock state switch on each seat door. <P>SOLUTION: The door locking device for the automobile is provided with door lock mechanisms 7A, 7B provided inside the doors of the automobile to lock the doors to an automobile body; actuators 7C, 7D provided inside the doors to drive the door lock mechanisms 7A, 7B; a central switch 2 provided in a cabin of the automobile to integrally perform operation for locking or unlocking the door lock mechanisms 7A, 7B; door switches 1 for identifying the opened/closed state of the doors; and a control device for determining the locked state or unlocked state of the doors based on the operated state of the central switch 2 and the identified state of the door switches 1 and controlling the actuators 7C, 7C according to the determination. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automobile door lock device.

  In general, a door lock device for an automobile is known that locks and unlocks a door to a vehicle body by operating a door lock knob provided on the interior side of the door of each seat.

  Such an automobile door lock device has a door lock mechanism for locking the door of each seat to the vehicle body inside the door of each seat, and this door lock mechanism is operated by a door lock knob mechanically linked to the door lock mechanism. The door is locked to the vehicle body by locking the door lock mechanism in a state where the door lock mechanism is engaged with the engaging portion provided on the vehicle body side.

In order to improve convenience, an actuator is incorporated in the door lock mechanism, and the function of centrally operating the door lock and unlock of each seat by an electric method with a central switch provided near the driver's seat is generally used. I have a match. In the case of such a door lock device for an automobile, a door lock state switch for identifying the lock / unlock state of the door in conjunction with the operation of the door lock knob is provided inside the door of each seat. Based on the identification result of the state switch and the operation signal of the central switch, a control device is provided that drives the actuator of the door of each seat (for example, Patent Document 1).
Japanese Patent Laid-Open No. 06-288132

  By the way, recently, for reasons of crime prevention and cost reduction, an automobile door lock device that uses only a centralized switch without considering the door lock knob and the door lock state switch linked to the door lock knob has been studied. ing.

  A vehicle having such a door lock device for a vehicle has a mechanism that can open the door regardless of the state of the centralized switch by operating a door inside handle provided on the vehicle interior side of the door. It has been.

  Here, by eliminating the door lock knob for each seat and the door lock state switch linked to the door lock knob, the control device cannot identify whether the door of each seat is actually locked or unlocked. turn into.

  Therefore, for example, if the door is closed after boarding and each seat door is locked with a central switch, then the door is opened by operating the door inside handle without unlocking the door with the central switch, the control device will Even though it is determined from the switch state that each seat door is in the locked state, an inconsistent state in which the door is actually opened occurs.

  For this reason, for example, a display device such as a door lock indicator that detects the lock and unlock state of the door and displays the lock and unlock state of the door displays erroneously.

  In addition, the door is locked and unlocked against the so-called forgetting to remove the key, which closes the door while the key is inserted in the car electrical system and the key cylinder that controls the start and stop of the engine. In the case of an automobile with a key-forget-key-off alarm function that detects an alarm and closes the door after getting on, locks each seat door with a central switch, and then operates the door inside handle with the key in the key cylinder. If you open the door and get off, and then close the door from the outside, the central switch is locked and the forgetting to remove key alarm function does not work, and the key is sealed in the car A problem occurs.

  SUMMARY OF THE INVENTION An object of the present invention is an automobile door that locks and unlocks a door by appropriately determining the lock and unlock state of each seat door in an automobile in which the door lock knob and the door lock state switch are not set on each seat door. It is to provide a locking device.

  In order to solve the above problems, the invention according to claim 1 is provided inside a door of an automobile, and locks the door to a vehicle body, and drives the door lock mechanism provided inside the door. An actuator, a central switch that is provided in a cabin of the automobile and performs an operation to centrally lock or unlock the door lock mechanism, a door switch that identifies an open / closed state of the door, and the operation of the central switch A control device that takes in the state and the identification result of the door switch as a signal, determines whether the door is locked or unlocked based on the signal, and controls the actuator according to the determination. It is a feature.

  According to the above configuration, the control device of the door lock device for an automobile is in a locked state based on the identification result of the door switch that identifies the operation state of the centralized switch for locking and unlocking the door and the open / closed state of the door. Whether the lock is released or not is appropriately determined, and the actuator that drives the door lock mechanism is controlled according to the determination.

  According to a second aspect of the present invention, in the first aspect, when the central switch is operated to unlock the door lock mechanism, the control device does not depend on the identification result of the door switch. It is characterized by determining that is unlocked.

  According to the above configuration, when the central switch is operated to unlock the door lock mechanism, the control device determines that the door is unlocked regardless of the identification result of the door switch, It is possible to correctly determine whether the door is locked or unlocked.

  According to a third aspect of the present invention, in the first or second aspect, the control device is configured such that the door switch is in a closed state of the door when the central switch is operated to lock the door lock mechanism. It is determined that the door is locked for the part of the door that identifies the door, and the door is unlocked for the door of the part that the door switch identifies the open state of the door. It is characterized by making a judgment that

  According to the above configuration, when the central switch is operated to lock the door lock mechanism, the control device is configured to detect the door at a portion where the door switch identifies the closed state of the door. A determination is made that the door is locked, and a determination is made that the door is unlocked for the door where the door switch identifies the open state of the door. The release state can be correctly determined. In this case, if the door is open even though the door is locked, it can be determined that the door is unlocked.

  According to a fourth aspect of the present invention, in the first or second aspect, the control device is configured such that the door switch is in a closed state of the door when the central switch is operated to lock the door lock mechanism. For the door of the part that identifies the door, the door is locked, and for the door of the part that the door switch identifies the open state of the door, the door is in the open state. When the closed state continues for a predetermined time or more before reaching the door, it is determined that the door is unlocked, and when the closed state has not been continued for a predetermined time or more before the door is opened. It is characterized by determining that the door is locked.

  According to the above configuration, although the driver's seat side door is mechanically locked, it is possible to correctly determine that the door is locked even in a so-called half-door state where the driver's seat side door switch is turned off. it can.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the apparatus includes an operation switch that operates to lock or unlock the door lock mechanism, and a transmitter that transmits a signal corresponding to the operation. The apparatus further includes a keyless device that outputs a signal for locking and unlocking the door lock mechanism to the control device based on a signal transmitted from the transmitter.

  According to the above configuration, the door can be locked and unlocked remotely by operating the operation switch of the transmitter of the keyless device.

  According to a sixth aspect of the present invention, in any one of the first to fourth aspects, the control device controls the display device that displays the open / closed state of the door based on the locked / unlocked state of the door. The door lock / unlock status determined by the device is output as a signal.

  According to the above configuration, the control device appropriately determines whether the door is locked and unlocked, and outputs the determination result as a signal to the display device that displays the open / closed state of the door. It is possible to appropriately display the open / close state of.

  According to a seventh aspect of the present invention, in the first to fourth aspects, the control device informs that the key of the automobile is forgotten to be removed from the key cylinder based on the locked and unlocked state of the door. The door is locked and unlocked as determined by the control device, and a signal is output to the device as a signal.

  According to the above configuration, the control device appropriately determines whether the door is locked and unlocked, and outputs the determination result as a signal to a notification device that notifies the user that the car key has been forgotten to be removed from the key cylinder. Can properly notify the key cylinder that the user has forgotten to remove the key from the key cylinder.

  According to the present invention, in an automobile in which the door lock knob and the door lock state switch are not set for each seat door, the door for the automobile that appropriately locks and unlocks each seat door and locks and unlocks the door. A locking device can be realized.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing the position of a driver's seat side door switch. In the present embodiment, a two-door automobile provided with one door on each of the driver's seat and the passenger's seat will be described.

  As shown in FIG. 2, on the rear side of the driver's seat side sill 101 of the vehicle body 100, when the driver's seat side door 102 is closed, it is sandwiched between the driver's seat side door 102 and the driver's seat side sill 101 and turned ON and OFF. There is provided a driver's seat side door switch 1A that switches between the two. The driver's seat side door switch 1A is turned on when the driver's seat side door 102 is closed, and turned off when the driver's seat side door 102 is opened.

  Similarly, on the rear side of the passenger seat side sill (not shown) of the vehicle body 100, the passenger seat is turned on when the passenger seat door 103 (not shown) is closed, and turned off when the passenger seat door 103 is opened. A side door switch 1B (see FIG. 1) is provided.

  These door switches 1A and 1B are electrically connected to an input circuit 6A of a door lock control device 6 installed, for example, behind the instrument panel 106 (see FIG. 3).

  Inside the driver seat side door 102 are a driver seat side door lock mechanism 7A (not shown) for locking the driver seat side door 102 to the vehicle body 100, and an actuator 7C for driving the driver seat side door lock mechanism 7A (see FIG. 1). Similarly, inside the passenger seat side door 103, a passenger seat side door lock mechanism 7B (not shown) for locking the passenger seat side door 103 to the vehicle body 100 and an actuator for driving the passenger seat side door lock mechanism 7B are provided. 7D (see FIG. 1) is provided.

  The driver's seat side door lock mechanism 7A engages with the driver's seat side engaging portion 104 provided on the vehicle body 100 side through an opening 102A provided in the rear cross section of the door 102 when the door is closed. Similarly, the passenger seat side door lock mechanism 7B is provided with a passenger seat side engagement provided on the vehicle body 100 side through an opening 103A (not shown) provided in a rear sectional portion of the door 103 when the door is closed. Engages with part 105 (not shown).

  To the input circuit 6A of the door lock control device 6, a centralized switch 2 that operates to lock and unlock the driver side door 102 and the passenger side door 103 simultaneously is electrically connected.

  The input circuit 6A of the door lock control device 6 is provided near the door outside handle on the outside of the driver side door 102. By inserting a key and rotating it in a predetermined direction, the driver side door 102 and the assistant are provided. The door key switch 3 that simultaneously locks the seat side door 103 and rotates it in the opposite direction to simultaneously unlock the driver side door 102 and the passenger seat side door 103 is electrically connected.

  Further, the keyless device 4 is electrically connected to the input circuit 6 </ b> A of the door lock control device 6. The keyless device 4 includes a transmitter 5 that transmits a signal corresponding to an operation of an operation switch 5A that locks and unlocks the driver's seat side door 102 and the passenger's side door 103, and is based on a signal from the transmitter 5. Then, a signal for locking or unlocking the driver seat side door 102 and the passenger seat side door 103 is output to the door lock control device 6.

  Here, the central switch 2 is installed in the vicinity of the center console 107 as shown in FIG. 3 so that it can be operated from both the driver seat and the passenger seat. Further, the main body of the keyless device 4 is installed, for example, behind the instrument panel 106.

  On the other hand, the output circuit 6C of the door lock control device 6 is provided inside the front door 103 and an actuator 7C that drives a door lock mechanism 7A (not shown) provided inside the driver side door 102. An actuator 7D for driving the door lock mechanism 7B (not shown) is electrically connected.

  Between the input circuit 6A and the output circuit 6C, the state of locking and unlocking of the driver side door 102 and the passenger side door 103 is determined according to the signal from each switch received by the input circuit 6A, and the actuator A door state determination circuit 6B that outputs a control signal for driving 7C and 7D to the output circuit 6C is set.

  The output of the door state determination circuit 6B is output to the outside of the door lock control device 6 because it is used in other systems such as a door lock indicator and a key forgetting prevention device.

  Next, the basic operation of this embodiment will be described.

  The driver side door 102 and the passenger side door 103 are locked and unlocked simultaneously by the central switch 2, the door key switch 3, or the operation switch 5A of the transmitter 5 of the keyless device 4.

  In order to unlock the driver side door 102 and the passenger side door 103 from outside the vehicle in a state where the driver side door 102 and the passenger side door 103 are closed and locked, a key is inserted into the door key switch 3 and a predetermined key is inserted. The key is rotated in the direction, and a signal for unlocking the driver side door 102 and the passenger side door 103 is given to the door lock control device 6.

  Alternatively, an operation switch 5 </ b> A provided in the transmitter 5 is operated to transmit a signal for unlocking the driver side door 102 and the passenger side door 103 to the keyless device 4. Upon receiving this signal, the keyless device 4 outputs an output signal for unlocking the driver's seat side door 102 and the passenger seat side door 103 to the door lock control device 6.

  In accordance with these signals, the door lock control device 6 drives the door lock mechanisms 7A and 7B on the driver's seat side and the passenger seat side by actuators 7C and 7D, respectively, to unlock the driver seat side door 102 and the passenger seat side door 103. .

  In order to unlock the driver side door 102 and the passenger side door 103 from inside the vehicle with the driver side door 102 and the passenger side door 103 closed and locked, the central switch 2 is operated to the unlock side. Thus, a signal for unlocking the driver side door 102 and the passenger side door 103 is given to the door lock control device 6.

  Alternatively, an operation switch 5 </ b> A provided in the transmitter 5 is operated in the vehicle, and a signal for unlocking the driver's seat side door 102 and the passenger seat side door 103 is transmitted to the keyless device 4. Upon receiving this signal, the keyless device 4 outputs an output signal for unlocking the driver's seat side door 102 and the passenger seat side door 103 to the door lock control device 6.

  In accordance with these signals, the door lock control device 6 drives the door lock mechanisms 7A and 7B on the driver's seat side and the passenger seat side by actuators 7C and 7D, respectively, to unlock the driver seat side door 102 and the passenger seat side door 103. .

  On the other hand, in order to lock the driver side door 102 and the passenger side door 103 from the outside with the driver side door 102 and the passenger side door 103 closed, the key is inserted into the door key switch 3 to unlock the door. The key is rotated in a direction opposite to the direction in which the driver is to perform, and a signal for locking the driver's seat side door 102 and the passenger seat side door 103 is given to the door lock control device 6.

  Alternatively, an operation switch 5 </ b> A provided in the transmitter 5 is operated to transmit a signal for locking the driver's seat side door 102 and the passenger seat side door 103 to the keyless device 4. Upon receiving this signal, the keyless device 4 outputs an output signal for locking the driver's seat side door 102 and the passenger seat side door 103 to the door lock control device 6.

  In accordance with these signals, the door lock control device 6 drives the door lock mechanisms 7A and 7B on the driver's seat side and the passenger seat side by actuators 7C and 7D, respectively, to lock the driver seat side door 102 and the passenger seat side door 103.

  In order to lock the driver seat side door 102 and the passenger seat side door 103 from inside the vehicle with the driver seat side door 102 and the passenger seat side door 103 closed, the centralized switch 2 is operated to the lock side, and the door lock control device is operated. 6 gives a signal for locking the driver's seat side door 102 and the passenger seat side door 103.

  Alternatively, an operation switch 5 </ b> A provided in the transmitter 5 is operated in the vehicle, and a signal for locking the driver's seat side door 102 and the passenger seat side door 103 is transmitted to the keyless device 4. Upon receiving this signal, the keyless device 4 outputs an output signal for locking the driver's seat side door 102 and the passenger seat side door 103 to the door lock control device 6.

  In accordance with these signals, the door lock control device 6 drives the door lock mechanisms 7A and 7B on the driver's seat side and the passenger seat side by actuators 7C and 7D, respectively, to lock the driver seat side door 102 and the passenger seat side door 103.

  The above is the basic operation of locking and unlocking the door.

  Here, the locked and unlocked state of the door and the open / closed state of the door can be independent from each other, that is, both the locked and unlocked states can be performed when the door is open, and Since both the locked and unlocked states are possible when the door is closed, the door lock control device 6 has not properly determined the open / closed state of the door and the locked and unlocked state, respectively. If the door warning light turns on incorrectly, or if the function for preventing the key from being forgotten is malfunctioned.

  For this reason, in this embodiment, the door lock control device 6 is used by using a door switch 1 that is generally provided in an automobile for a half-door warning light or the like indicating that the door is not completely closed. The door open / close state is identified, and the door lock / unlock state is always properly determined.

  Hereinafter, this operation will be described with reference to the flowchart of FIG.

  First, in step S101, whether the door lock control device 6 has received a door lock signal, that is, whether the lock side of the centralized switch 2 is selected, the lock side of the door key switch 3 is selected, or the operation of the transmitter 5 is performed. It is checked whether the switch 5A is operated to the lock side and the keyless device 4 outputs a signal for locking all the doors.

  If the door lock control device 6 has not received a door lock signal from the centralized switch 2, the door key switch 3, or the keyless device 4, the process proceeds to step S102. Is in the unlocked state, the flow returns to step S101 to repeat the flow.

  When it is determined that all seat doors are unlocked, the door lock / unlock status is used, such as the above-mentioned half-door warning light being lit incorrectly or the key-forgetting prevention function malfunctioning. Problems that impair the functionality of other systems and devices do not occur.

  When the door lock control device 6 has received a door lock signal from the central switch 2, the door key switch 3, or the keyless device 4, the flow proceeds to step S103.

  In step S103 to step S108, the door lock control device 6 checks whether the door of each seat is open or closed under the condition that the door lock mechanisms 7A and 7B are on the lock side. It is determined whether the lock state or the unlock state.

  In step S104, the door lock control device 6 checks whether the driver side door 102 is open or closed by the driver side door switch 1A.

  Here, the driver's seat side door switch 1A is turned on when the driver's seat side door 102 is closed, and turned off when the driver's seat side door 102 is opened. Therefore, the input terminal of the driver side door switch 1A of the input circuit 6A is in a grounded state when the driver side door 102 is closed, and is opened when the driver side door 102 is opened, and the door lock control device. 6 can identify opening and closing of the driver's seat side door 102.

  The order of checking the doors for checking the open / close state is not limited to the order of the present embodiment, and may be any order. The relationship between the ON / OFF state of the driver's seat side door switch 1A and the grounding and opening of the terminal of the input circuit 6A may be reversed.

  If the driver's seat side door switch 1A is ON in step S104, the driver's seat side door 102 is locked and the driver's seat side door 102 is closed, and the flow proceeds to step S105. Then, the door lock control device 6 determines that the driver's seat side door 102 is locked.

  If the driver's seat side door switch 1A is OFF in step S104, this corresponds to the state where the driver's seat side door 102 is locked and the driver's seat side door 102 is open.

  In this state, after the driver's seat side door 102 is closed, the driver's seat side door 102 is locked by the centralized switch 2 or the transmitter 5 and then the driver's seat side door 102 is again moved from the vehicle interior side by an inside handle (not shown). This corresponds to the case where the driver's seat side door 102 is opened by the central switch 2, the door key switch 3 or the transmitter 5 while the driver's seat side door 102 is opened while the vehicle is stopped.

  In this case, problems such as the above-described erroneous lighting of the half-door warning lamp and the malfunction of the key containment function, which impair the functions of other systems and devices that use the locked and unlocked state of the door, occur. For this reason, even if the door lock control device 6 receives a signal for locking the driver's seat side door 102 from the central switch 2, the door key switch 3, or the transmitter 5, the process proceeds to step S106 and the driver's seat side door 102 is moved. It is determined that the lock is released.

  With the above flow, the door lock control device 6 can correctly determine whether the driver's seat side door 102 is locked or unlocked. After this, the flow moves to step S107.

  In step S107, if the door lock control device 6 determines that the driver's seat side door 102 is in the locked state based on the above determination, the door lock mechanism 7A drives the actuator 7C so that the door lock mechanism 7A is on the lock side. When it is determined that the side door 102 is in the unlocked state, the actuator 7C is driven so that the door lock mechanism 7A is on the unlocked side.

  When the driver's seat side door 102 is checked, the door lock control device 6 repeats Steps S104 to S107 for the passenger seat side door 103 to determine whether the passenger seat door 103 is locked or unlocked. Thereafter, returning to the beginning of the flow, the flow is alternately repeated for the driver side door 102 and the passenger side door 103.

  By the above operation, for example, after the ride, the door is closed and the door is locked by the central switch 2 or the transmitter 5 of the keyless device 4, and then the door inside handle is operated without unlocking the door by the central switch 2 or the transmitter 5. Even when the door is opened, the door lock control device 6 can correctly determine that the door is unlocked.

  Further, for example, when the driver's seat side door 102 is locked by the central switch 2, the door key switch 3, or the transmitter 5 of the keyless device 4 with the driver's seat side door 102 opened, the door lock control device 6 is also connected to the driver's seat side. It can be correctly determined that the door 102 is in the unlocked state. In this case, when the driver's seat side door 102 is closed in this state, the door lock control device 6 turns on the driver's seat side door switch 1A in a state where the door lock signal is received, so the flow proceeds in S105. The driver side door 102 is locked.

  FIG. 5 shows a flowchart of the second embodiment of the present invention. The present embodiment is an embodiment corresponding to a so-called half-door state in which the door is mechanically locked but the door switch 1 is turned off, and the door switch 1 determines the door open / closed state. Only the part is different from the first embodiment.

  In step S201, whether the door lock control device 6 has received a door lock signal, that is, whether the lock side of the central switch 2 has been selected, the lock side of the door key switch 3 has been selected, or the operation switch of the transmitter 5 It is checked whether 5A is operated to the lock side and the keyless device 4 outputs a signal for locking all the doors.

  Here, if the door lock control device 6 has not received a door lock signal from the central switch 2, the door key switch 3, or the keyless device 4, the process proceeds to step S202, and the door lock control device 6 detects the doors of all seats. Is in the unlocked state, the flow returns to step S101 to repeat the flow.

  If it is determined that all seat doors are unlocked, the door lock / unlock status is used, such as the above-mentioned half-door warning light being turned off erroneously, or the key-forgetting prevention function malfunctioning. There is no problem that impairs the function of the system or apparatus.

  If the door lock control device 6 has received a door lock signal from the central switch 2, the door key switch 3, or the keyless device 4, the flow proceeds to step S203.

  In step S203 to step S209, the door lock control device 6 checks whether the door of each seat is open or closed under the condition that the door lock mechanisms 7A and 7B are on the lock side. It is determined whether the lock state or the unlock state.

  In step S204, the door lock control device 6 checks whether the driver's seat side door 102 is open or closed according to the state of the driver's seat side door switch 1A.

  If the driver's seat side door switch 1A is ON in step S204, the driver's seat side door 102 is locked and the driver's seat side door 102 is closed, and the flow proceeds to step S205. Then, the door lock control device 6 determines that the driver's seat side door 102 is locked.

  If the driver's seat side door switch 1A is OFF in step S204, the flow proceeds to step S206.

  In step S206, before the driver's seat side door switch 1A is turned off, it is determined whether or not the driver's seat side door switch 1A has been on for a predetermined time or more. If the driver's seat side door switch 1A is turned off after the driver's seat side door switch 1A has been on for a predetermined time or longer, the flow proceeds to step S207. On the other hand, if the driver's seat side door switch 1A is not turned on for a predetermined time or more before the driver's seat side door switch 1A is turned off, the flow proceeds to step S205.

  This step is a step for avoiding misjudgment due to a so-called half-door state in which the driver's seat side door 102 is locked, but the driver's seat side door switch 1A is turned off. When the driver side door 102 is locked while the driver side door 102 is open and is closed by throwing the driver side door 102 against the vehicle body 100, the driver side door 102 is once attached to the vehicle body 100. After the contact, the driver's seat side door 102 may be slightly opened again by the urging force, resulting in a half-door state. This state is mechanically determined that the driver's seat side door 102 is in the locked state, and the door lock control device 6 should determine that the driver's seat side door 102 is in the locked state. However, since the driver's seat side door switch 1A is turned ON once when the driver's seat side door 102 comes into contact with the vehicle body 100, it is turned OFF again when the driver's seat side door 102 leaves the vehicle body 100. As it is, the door lock control device 6 determines that the lock is released, and a contradiction arises. Therefore, when the feature of the time change of the door switch 1 at the time of half door is used and the driver's seat side door switch 1A is opened immediately after closing, that is, the driver's seat side door switch 1A is ON. If the state is turned OFF before the predetermined time has elapsed, it is determined that the driver's seat side door 102 is in a locked state, and this contradiction is avoided. On the other hand, when the driver's seat side door switch 1A is turned off after the driver's seat side door switch 1A has been on for a predetermined time or longer, it is determined that the driver's seat side door 102 is in the unlocked state.

  In step S206, if the driver's seat side door switch 1A is OFF after the driver's seat side door switch 1A has been ON for a predetermined time or longer, the driver's seat side door 102 is locked and the driver is driving. This corresponds to a state where the seat side door 102 is open.

  Such a state is when the driver's seat side door 102 is opened with the inside handle again from the inside of the vehicle after the driver's seat side door 102 is locked by the centralized switch 2 or the transmitter 5 after the driver's seat side door 102 is closed. Or, this corresponds to the case where the driver's seat side door 102 is locked by the centralized switch 2, the door key switch 3, or the transmitter 5 while the driver's seat side door 102 is opened while the vehicle is stopped.

  In this case, problems such as the above-described erroneous lighting of the half-door warning lamp and the malfunction of the key containment function, which impair the functions of other systems and devices that use the locked and unlocked state of the door, occur. Therefore, even if the door lock control device 6 receives a signal for locking the driver's seat side door 102 from the central switch 2, the door key switch 3, or the transmitter 5, the process proceeds to step S207 and the driver's seat side door 102 is moved. It is determined that the lock is released.

  With the above flow, the door lock control device 6 can correctly determine whether the driver's seat side door 102 is locked or unlocked. After this, the flow moves to step S208.

  In step S208, when the door lock control device 6 determines that the driver's seat side door 102 is in the locked state based on the above determination, the actuator 7C is driven so that the door lock mechanism 7A is on the lock side. When it is determined that the door 102 is in the unlocked state, the actuator 7C is driven so that the door lock mechanism 7A is on the unlocking side.

  When the driver's seat side door 102 is checked, the door lock control device 6 repeats steps S204 to S208 for the passenger seat side door 103 to determine whether the passenger seat door 103 is locked or unlocked. Thereafter, returning to the beginning of the flow, the flow is alternately repeated for the driver side door 102 and the passenger side door 103.

  By the above operation, for example, after the ride, the door is closed and the door is locked by the central switch 2 or the transmitter 5 of the keyless device 4, and then the door inside handle is operated without unlocking the door by the central switch 2 or the transmitter 5. Even when the door is opened, the door lock control device 6 can correctly determine that the door is unlocked.

  Further, for example, when the driver's seat side door 102 is locked by the central switch 2, the door key switch 3, or the transmitter 5 of the keyless device 4 with the driver's seat side door 102 opened, the door lock control device 6 is also connected to the driver's seat side. It can be correctly determined that the door 102 is in the unlocked state. In this case, when the driver's seat side door 102 is closed in this state, the door lock control device 6 receives the door lock signal and the driver's seat side door switch 1A is turned on, so the flow proceeds to S205. The driver side door 102 is locked.

  Further, when the door is locked, it is mechanically determined by determining that the door is unlocked only when the door switch 1 is turned off after the door switch 1 has been on for a predetermined time or longer. Although the door is in the locked state, it is possible to avoid making an erroneous determination that the door is in the unlocked state in the so-called half-door state in which the door switch 1 is turned off.

  As shown in the above-described embodiments, according to the present invention, in an automobile in which the door lock knob and the door lock state switch are not set for each seat door, the operation state of the lock and unlock operation of each seat door, and the door switch 1 Based on this state, it is possible to realize a vehicle door lock device that appropriately locks and unlocks each seat door and locks and unlocks the door.

  Further, the door switch 1 is not specially provided for the present invention, and is conventionally provided in an automobile for a half-door warning light or the like indicating that the door is not completely closed. It is. Therefore, there is an advantage that it is not necessary to newly provide a switch in order to obtain the effect of the present invention, and the cost is not increased.

  As mentioned above, although the Example of this invention was explained in full detail with drawing, an Example is only an illustration of this invention and this invention is not limited only to the structure of an Example. Accordingly, it is a matter of course that the present invention includes any design change within a range not departing from the gist of the present invention.

  For example, in the above embodiment, the description has been made on the assumption that a two-door vehicle having only the driver's seat side door 102 and the passenger's seat side door 103 is used. However, in the case of an automobile having more than two doors, steps S103 to S108 are performed. Or step S203-step S209 should just be repeated by the number of doors. The order can be any order.

  In addition, the door switch 1 is used to identify the open / closed state of the door, in addition to a method of detecting each ON / OFF state of the door switch 1 and a method using detection of a state change in which the door switch 1 is turned on from off. Is possible.

It is a block diagram of the Example of this invention. It is a figure which shows the position of a driver's seat side door switch. It is a figure which shows the position of a concentration switch. It is a flowchart of the 1st example of the present invention. It is a flowchart of the 2nd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door switch 1A Driver side door switch 1B Passenger side door switch 2 Concentration switch 3 Door key switch 4 Keyless device 5 Transmitter 5A Operation switch 6 Door lock control device 6A Input circuit 6B Door state determination circuit 6C Output circuit 7C Actuator 7D Actuator DESCRIPTION OF SYMBOLS 100 Car body 101 Driver's seat side side sill 102 Driver's seat side door 102A Opening part 104 Driver's seat side engaging part 106 Instrument panel 107 Center console

Claims (7)

A door lock mechanism provided inside the door of the automobile and locking the door to the vehicle body;
An actuator provided inside the door and driving the door lock mechanism;
A centralized switch that is provided in a vehicle interior of the automobile and performs an operation to centrally lock or unlock the door lock mechanism;
A door switch for identifying an open / closed state of the door;
Control that captures the operation state of the centralized switch and the identification result of the door switch as a signal, determines whether the door is locked or unlocked based on the signal, and controls the actuator according to the determination A door lock device for an automobile.   The control device determines that the door is unlocked regardless of the identification result of the door switch when the central switch is operated to unlock the door lock mechanism. The automobile door lock device according to claim 1.   In the control device, when the central switch is operated to lock the door lock mechanism, the door is locked for the door where the door switch identifies the closed state of the door. The determination that the door is unlocked is performed for the door at a portion where the door switch identifies the open state of the door. The automobile door lock device according to 2.   In the control device, when the central switch is operated to lock the door lock mechanism, the door is locked for the door where the door switch identifies the closed state of the door. The door of the part where the door switch identifies the open state of the door is determined if the closed state continues for a predetermined time or more before the door reaches the open state. And determining that the door is locked if the door is not closed for a predetermined time before the door is opened. The automobile door lock device according to claim 1 or 2.   The door lock mechanism includes an operation switch that operates to lock or unlock the door lock mechanism and transmits a signal corresponding to the operation, and the door lock mechanism is connected to the control device based on the signal transmitted from the transmitter. 5. The automobile door lock device according to claim 1, further comprising a keyless device that outputs a lock and unlock signal.   The control device outputs the door lock / unlock status determined by the control device as a signal to a display device that displays the door open / closed status based on the door lock / unlock status. The automobile door lock device according to claim 1, wherein: The door is locked and unlocked as determined by the controller with respect to a notification device for notifying that the controller has forgotten to remove the key of the vehicle from the key cylinder based on the door locked and unlocked state. The vehicle door lock device according to any one of claims 1 to 4, wherein: is output as a signal.

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