JP2023041723A - Door locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door locking device with which a crewman can easily identify a locked condition where a door is locked to a vehicle body.

SOLUTION: A door locking device comprises a latch mechanism 14 for latching a door 2 to a closed position, a lock mechanism 17 for locking the latch mechanism, a display/input device 28 including an optical display unit 34 and a touch sensor 32, a latch actuator 16, a vehicle condition sensor 40, a lock actuator 18, and a control unit 42. The control unit 42 is configured so that the optical display unit performs a dark display with low discriminability and an input from the touch sensor is ignored when the lock actuator is locked. The control unit 42 is also configured so that the optical display unit performs a bright display with high discriminability and the latch mechanism is unlatched by starting the latch actuator 16 based on an input from a touch sensor 32 when the lock actuator is unlocked.

SELECTED DRAWING: Figure 3

COPYRIGHT: (C)2023,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a door lock device mounted on an automobile and controlling a locking state between a door and a vehicle body.

2. Description of the Related Art A conventional automobile door is provided with an inside handle that releases the locked state between the door and the vehicle body to allow the door to be opened. Furthermore, in order to ensure the safety of the occupants, the door of the automobile is provided with a door lock knob for making it impossible to release the locked state between the door and the body by the inside handle.

With the aim of improving the design of the inside of the door and making effective use of the door space inside the car, the conventional inside handle attached to the inside of the door was eliminated, and the lock between the door and the car body was released. An automobile door is known in which a release means is remotely operated by an input means arranged inside the door, and is combined with an interlock mechanism that operates according to an output from a vehicle state detection means. (For example, Patent Document 1).

Japanese Patent No. 3951884

In the automobile door disclosed in Patent Document 1, the presence or absence of operation of the interlock mechanism is not displayed on the input means, so the occupant knows whether or not the locked state between the door and the body cannot be released. It is not possible. Therefore, there is a risk that the occupant will operate the input means while the interlock mechanism is operating, or that the occupant will inadvertently operate the input means assuming that the interlock mechanism is operating when it is undesirable to open the door. There was a risk of operating the

In view of the above background, the present invention is configured so that releasing means for releasing the locked state between a door without an inside handle and a vehicle body is operated by an input means disposed inside the door, and the door is configured to be operated by an input means arranged inside the door. To provide a door lock device which enables an occupant to easily identify that a door is held when it is held in a locked state.

In order to solve the above-mentioned problems, a vehicle door lock device (2) is provided on a vehicle door (2) and cooperates with a striker (10) provided on the vehicle body side of the vehicle. a latch mechanism (14) for selectively latching a door in a closed position; a lock mechanism (17) for locking the latch mechanism in a state in which the door is held in the closed position; a display/input device (28) comprising, an optical display (34) and a touch sensor (32); a latch actuator (16) for selectively unlatching said latch mechanism; and a vehicle for detecting said vehicle state. a state sensor (40, 80, 90), a lock actuator (18) for selectively locking said locking mechanism, and a control unit (42) for controlling actuation of said lock actuator based on the output of said vehicle state sensor. and further, when the lock actuator is in a locked state, the optical display section performs a dark display with low distinguishability and ignores the input of the touch sensor, When the lock actuator is in the unlocked state, the optical display unit provides a highly distinguishable bright display, and the latch mechanism is activated by operating the latch actuator based on the input from the touch sensor. A door lock device is provided characterized in that it is configured to unlatch.

According to this configuration, the optical display section performs dark display when the lock mechanism is locked, and the optical display section performs bright display when the lock mechanism is unlocked. It can be easily identified whether it is locked or not. Also, the occupant must provide input to the touch sensor to unlatch the latch mechanism that latches the door in the closed position. When the door is locked in the closed position by the locking mechanism, for example, when the door is locked by the driver or when the vehicle is running, the touch sensor input is ignored, so the occupant cannot move the door to the closed position. A latch mechanism that latches cannot be unlatched. Therefore, passenger safety is ensured. Furthermore, since the optical display performs a dark display with low identification, the touch sensor is difficult for the passenger to identify, so the risk of the passenger trying to touch the touch sensor is reduced, and the safety of the passenger is further enhanced.

Further, in order to solve the above-mentioned problems, a vehicle door lock device (2) is provided on a vehicle door (4) and cooperates with a striker (10) provided on the vehicle body side of the vehicle. , a latch mechanism (14) for selectively latching the door in the closed position; and a display/input device ( 28), a latch actuator for selectively unlatching the latch mechanism, vehicle state sensors (40, 80, 90) for detecting the running state of the vehicle, and based on signals from the touch sensor and the vehicle state sensor. a control unit (42) for controlling the latch actuator and the optical display, wherein the control unit controls the optical display when it determines that the vehicle is running based on the signal from the vehicle state sensor; When the target display unit performs a dark display with low distinguishability, ignores the input of the touch sensor, and determines that the vehicle is stopped based on the signal of the vehicle state sensor, the optical display unit provides a highly identifiable bright display, and operates the latch actuator based on the input of the touch sensor to unlatch the latch mechanism. be done.

According to this configuration, when the vehicle is running, the input from the touch sensor is ignored, so the occupant cannot unlatch the latch mechanism that latches the door to the closed position, so the door is locked to the vehicle body. retained. At that time, since the optical display unit performs dark display with low identification, the passenger can identify whether or not the lock mechanism is locked. Therefore, the risk of the passenger trying to touch the touch sensor is reduced, and the safety of the passenger is further enhanced.

Further, in the above configuration, the control unit includes a lock mechanism that locks the latch mechanism in a state in which the door is held in the closed position, and a lock actuator (18) that selectively locks the lock mechanism. Preferably, the lock mechanism is unlocked when it is determined that the vehicle is stopped, and the lock mechanism is locked when it is determined that the vehicle is running.

According to this configuration, the lock mechanism is locked while the vehicle is running, and the optical display section performs a dark display. On the other hand, when the vehicle is stopped, the lock mechanism is unlocked and the optical display unit performs bright display. Therefore, the occupant can easily identify whether or not the lock mechanism is locked. Furthermore, since the door is locked in the closed position while the vehicle is running, the safety of the occupant is further enhanced.

Further, in the above configuration, the vehicle state sensor is a sensor that acquires at least one of the vehicle speed, the gear position of the transmission, and the operating state of the parking brake, and the control device is configured so that at least the vehicle sensor If the vehicle speed is acquired (40), the vehicle speed is less than or equal to a predetermined speed, or if the vehicle sensor acquires the gear position (80), the gear position is in the parking position. or, if the vehicle sensor acquires the operating state of the parking brake (90), the parking brake is activated.

When the vehicle speed is below a predetermined speed, the gear position is in the parking position, or the parking brake is in the parking position, the vehicle speed is low or the rotation of the wheels of the vehicle is restricted. According to this configuration, the timing at which the latch mechanism is unlatched and the door can be opened and closed can be limited to when the vehicle speed is low or when the rotation of the wheels of the vehicle is restricted. sexuality is enhanced.

Also, in the above configuration, the display/input device may be a touch panel.

According to this configuration, the touch sensor and the optical display unit are integrated, and the display/input device becomes compact.

In the above configuration, grip portions (24, 26) for gripping by an occupant are provided on the inner side surface of the door. and the touch panel may be provided on the inner surface of the grip.

When an occupant pushes the handle to open the door, the occupant's palm often touches the inner surface of the handle facing the vehicle interior. According to this configuration, the occupant can easily touch the touch sensor at the same time as the passenger pushes the door.

Further, in the above configuration, the touch panel preferably has the same appearance in terms of design as the inner surface of the grip portion when performing the dark display.

According to this configuration, the aesthetic appearance of the grip is enhanced.

Further, in the above configuration, it is preferable that the grip part and the touch panel are covered with a common transparent cover member (30).

In the above configuration, the vehicle further includes a seat (36) that is displaceable between a predetermined boarding/alighting position and a predetermined operating position different from the boarding/alighting position, and a seat (36) that is moved between the boarding/alighting position and the driving position. The seat actuator is controlled by the control unit, and the control unit controls the touch sensor when the optical display section is performing a highly identifiable bright display. The seat may be placed in the entry/exit position by actuating the seat actuator based on the input of .

According to this configuration, when the passenger opens the door, the seat moves to a position where the passenger can easily get on and off, and the passenger can easily get on and off.

According to the above configuration, the releasing means for releasing the locked state between the door and the vehicle body without the inside handle is configured to be operated by the input means arranged inside the door, and the door is locked to the vehicle body. It is possible to provide a door lock device that allows an occupant to easily identify that it is held when it is held in a closed state.

FIG. 2 is a side view of the vehicle interior side of the door according to the present invention; Schematic diagram of a latch device and a lock device of a door lock device according to the present invention Enlarged view of the assist grip portion when the optical display unit of the door lock device according to the first embodiment performs (A) dark display and (B) bright display. Control block diagram of the door lock device according to the first embodiment Flowchart of the control unit of the door lock device according to the first embodiment Enlarged view of the pull handle portion when the optical display unit of the door lock device according to the second embodiment performs (A) dark display and (B) bright display. Flowchart of the door lock device according to the third embodiment Modified Example of Control Block Diagram of Door Lock Device Modified Example of Control Block Diagram of Door Lock Device

Three embodiments of the door lock device according to the present invention will be described below with reference to FIGS. 1 to 9. FIG.

<<First Embodiment>>
A door lock device 2 according to the present invention is applied to a vehicle such as an automobile. The vehicle is provided with an opening through which passengers get on and off, and a door 4 which is rotatably connected to the vehicle body via a hinge at the opening. As shown in FIG. 1, the door 4 according to the first embodiment has an outer panel 5 that constitutes its outer surface, an inner panel 6 that is arranged inside the outer panel 5, and an inner panel 6 that is arranged inside the vehicle. A door lining 8 forming an inner side surface of the vehicle is provided.

A striker 10 is provided on the center pillar (not shown) of the opening of the vehicle body. A latch mechanism 14 having a latch 12 that engages with the striker 10 is provided at a position facing the striker 10 at the rear end of the door 4 . The latch 12 is formed to be rotatable with respect to the door 4, and is rotated between the latch position shown in FIG. 2 (solid line in FIG. 2) and the open position shown in FIG. is displaced by . When the door 4 is in the closed position with respect to the vehicle body and the latch 12 is in the latch position, the latch 12 engages the striker 10 and the door 4 is held (latched) in the closed position. When the latch 12 is in the open position, the latch 12 does not engage the striker 10 and the door 4 is not locked to the vehicle body. The latch 12 is biased from the open position toward the latch position by biasing means 13 (for example, a torsion coil spring).

The door lock device 2 is equipped with a latch actuator 16 that displaces the latch 12 . The latch actuator 16 has a protruding end which abuts on one end of the latch 12, and when the protruding end is pushed out by driving the latch actuator 16, the latch 12 moves from the latch position to the open position. The latch actuator 16 is constructed using, for example, a linear motor.

Further, the door lock device 2 is provided with a lock mechanism 17 and a lock actuator 18 for holding the latch 12 in the latched position. The lock mechanism 17 includes a concave portion 17a provided in the latch 12 and a convex portion provided in the tip portion of the lock actuator 18 and capable of fitting into the concave portion. Lock actuator 18 is configured to extend. The lock actuator 18 is actuated to extend so that the projection engages the recess and the latch 12 moves to the latched position. When the lock actuator 18 is driven, the protrusion is held in a state of being fitted into the recess, and the latch 12 is held (locked) at the latch position. The lock actuator 18 is constructed using a linear motor.

The act of locking a conventional door lock knob corresponds to driving the lock actuator 18 . Opening the conventional inside handle corresponds to driving the latch actuator 16 . When the lock actuator 18 is driven, the latch 12 is locked in the latched position and the engagement between the door 4 and the vehicle body cannot be released, so the lock mechanism 17 functions as a conventional interlock mechanism.

As shown in FIG. 1, a door trim 20 is provided on the vehicle inner side of the door lining 8 to enable a passenger in the vehicle to operate the door 4 and to allow the passenger to spend a comfortable time in the vehicle. is formed. The door trim 20 is provided with an armrest 22 provided on the side of a seated occupant for resting the arm of the occupant. The armrest 22 is formed by bulging the surface of the door trim 20 toward the vehicle interior in a stepped manner, and the armrest 22 is provided so as to extend in the front-rear direction of the vehicle. An elastic material that imparts elasticity to the armrest 22 is provided on the outer periphery of the armrest 22 . The elastic material has optimum elasticity so that the occupant feels comfortable when placing their arms.

A pull handle 24 extending from the armrest 22 and having a recess opening upward is provided at the front end of the armrest 22 . The pull handle 24 is made of a resin having sufficient rigidity to grip the recess to open and close the door 4 , and functions as a grip for the passenger to grip the recess to open and close the door 4 . Specifically, the door 4 is opened when the passenger grips the recess and pushes the door 4 out of the vehicle, and the door 4 is closed when the passenger grips the recess and pulls it toward the vehicle interior. Although illustration is omitted, an operation panel or the like for operating the power window of the door 4 is provided on the upper surface of the pull handle 24 .

An assist grip 26 projecting toward the vehicle interior in an arch shape is provided on the vehicle interior side of the door lining 8 . The assist grip 26 has one end connected to the front side of the armrest 22 and the other end connected to the upper end of the base surface portion (vehicle inner side surface portion) of the door trim 20, and has a thickness that can be gripped by the occupant. It extends in a forward tilting manner. The assist grip 26 also functions as a grip for opening and closing the door 4 by gripping the concave portion by the occupant. The assist grip 26 is made of a relatively hard material (for example, resin, wood, etc.) that can be gripped by the passenger to push and pull the door 4 to the outside of the vehicle.

The assist grip 26 is provided with a touch panel 28 for the passenger to make an input through an operation such as touching. The touch panel 28 is embedded and fixed in the assist grip 26 so that its screen is continuous with the surface of the assist grip 26 . The touch panel 28 and the assist grip 26 are covered with a common transparent cover member 30. - 特許庁The screen of the touch panel 28 is provided on the surface of the grip facing the inside of the vehicle. The touch panel 28 includes a touch sensor 32 for detecting contact with the screen by the passenger, and an optical display section 34 having a backlight and a transparent liquid crystal display. The touch panel 28 displays a screen and functions as a display/input device for receiving input from the passenger. The optical display unit 34 performs bright display with the backlight on and dark display with the backlight off. As shown in FIG. 3A, when the optical display unit 34 performs bright display, the screen of the touch panel 28 is easily visible to the passengers in the vehicle, and the touch panel 28 is more sensitive than the surface of the grip portion. It is in a highly identifiable state. On the other hand, as shown in FIG. 3B, when the optical display unit 34 performs a dark display, the screen of the touch panel 28 is transparent, and the passenger can see through the grip portion. . Therefore, when the optical display unit 34 performs dark display, the screen of the touch panel 28 is less visible than when the optical display unit 34 performs bright display, and the touch panel 28 is in a state of low recognizability. It is in.

In this embodiment, when the backlight is turned off, the screen of the touch panel 28 is transparent, so the designed surface of the assist grip 26 can be seen through. Therefore, even when the backlight is turned off, the external appearance of the touch panel 28 and the assist grip 26 around it are continuous, and the design is excellent. In this embodiment, the touch panel 28 is a so-called in-cell type TFT liquid crystal display. The touch panel 28 has a part (or all) of a mechanism for detecting contact with the screen by means of an electrostatic capacitance system, which is incorporated inside a TFT (thin film transistor) of the liquid crystal display. Electric power is supplied to the touch panel 28 from an in-vehicle battery, a power generator, or the like.

The interior of the vehicle is equipped with a driver's seat, a passenger's seat, and a rear seat where passengers are seated. Each seat 36 is connected to a rail provided on the floor of the vehicle body via a slider and moves forward, backward, left and right with respect to the floor of the vehicle body. The rails are provided with seat actuators 38 for displacing the seat 3 along the rails. As shown in FIG. 4, the seat actuators 38 act on the seats 36 and, upon receipt of a predetermined input signal, move the corresponding seats 36 to an entry/exit position (e.g., a position in which the seat 36 is lowered as much as possible) that facilitates entry and exit of the occupant. ), and when a predetermined input signal different from the predetermined input signal is received, the corresponding seat 36 is moved to a driving position where the occupant can comfortably spend time in the vehicle (for example, the seat 36 is raised above the boarding/alighting position, and the occupant (where you can comfortably bend your knees).

A vehicle speed sensor 40 is provided at the center and bottom of the vehicle body. Vehicle speed sensor 40 functions as a vehicle state sensor that detects the state of the vehicle. A vehicle speed sensor 40 detects the vehicle speed. However, the vehicle speed described in this specification is the speed of the vehicle, and represents only the absolute value of the vehicle speed.

Furthermore, the door 4 is provided with manual locking means 41 . The manual lock means 41 has a door lock button 41a that can be displaced between a locked position where the door 4 is locked and an unlocked position where the door 4 is unlocked. The manual lock means 41 is configured to transmit a signal corresponding to the position of the door lock button 41a and displace the door lock button 41a according to the received signal.

A control unit 42 is provided at an appropriate location between the door lining 8 and the inner panel 6, as shown in FIG. The control unit 42 is connected to receive signals from the vehicle speed sensor 40, the manual lock means 41, and the touch sensor 32 of the touch panel 28, as shown in FIG. Further, the control unit 42 is connected so as to be able to control the latch actuator 16 and lock actuator 18 , the seat actuator 38 , and the optical display section (backlight and liquid crystal display) 34 of the touch panel 28 . With this configuration, the control unit 42 drives the lock actuator 18 and the latch actuator 16 based on signals from the touch sensor 32 and the vehicle speed sensor 40 according to a predetermined flow, and displays the optical display section 34. can be controlled. The control unit 42 has a predetermined memory (not shown) for storing the drive states of the lock actuator 18 and latch actuator 16 .

The processing performed by the control unit 42 will now be described with reference to the flow diagram of FIG. When the vehicle is started and the engine is running, the control unit 42 receives a signal from the vehicle speed sensor 40 and calculates the vehicle speed so that the calculated vehicle speed is below a predetermined critical speed (eg, 10 kilometers per hour). (ST1).

If it is determined that the vehicle speed is below the critical speed, the control unit 42 receives a signal from the manual locking means 41 and determines whether the door lock knob of the manual locking means 41 is in the unlocked position ( ST2). When it is determined that the door lock knob of the manual locking means 41 is in the unlocked position, the lock actuator 18 is kept stopped when it is stopped, and when the lock actuator 18 is driven, the control unit 42 stops the lock actuator 18 (ST3). After the process of ST3 is performed, the lock mechanism 17 is in the unlocked state, and the lock of the latch 12 to the latch position is released. The control unit 42 writes the driving state of the lock actuator 18 into memory (ST4).

If it is determined in ST1 that the vehicle speed is higher than the critical speed, or if it is determined in ST2 that the button of the manual lock means 41 is in the locked position, the control unit 42 causes the lock actuator 18 to be driven. The driving state is maintained when the lock actuator 18 is present, and is driven when the lock actuator 18 is stopped (ST5). After the processing of ST5 is performed, the lock mechanism 17 is locked and the latch 12 is locked at the latch position. The control unit 42 writes the drive state of the lock actuator 18 in memory (ST6). When the door lock button 41a is at the unlocked position, the control unit 42 displaces the door lock button 41a of the manual lock means 41 to the locked position (ST7).

After processing ST3 or ST4, the control unit 42 reads from memory whether or not the lock actuator 18 is being driven (ST8). When the control unit 42 determines that the lock actuator 18 is driven, it controls the optical display section 34 to perform a dark display (ST9), and when the seat 36 is not in the driving position, the seat actuator 38 to move the seat 36 to the driving position (ST10).

On the other hand, when the control unit 42 determines that the lock actuator 18 is not driven, the control unit 42 controls the optical display section 34 to perform bright display (ST11). Further, the control unit 42 detects a signal from the touch sensor 32, and determines whether or not the passenger touches the touch panel 28 (ST12). When contact with the touch panel 28 is detected, the control unit 42 causes the latch mechanism 14 to be in an unlatched state in which the latch 12 is in the open position. 16 is driven (ST13). Further, when the seat 36 is not at the boarding/alighting position, the seat actuator 38 is driven to move the seat 36 to the boarding/alighting position (ST14).

Next, operation of the door lock device 2 will be described. When the engine of the vehicle starts, power is supplied to the door 4 opening/closing device. The control unit 42 constantly receives signals from the vehicle speed sensor 40 and calculates the vehicle speed.

When the vehicle reaches a speed higher than the critical speed, the backlight of the touch panel 28 is turned off and the screen of the touch panel 28 becomes difficult for the passenger to identify. At the same time, the occupant is prohibited from opening and closing the door 4, and the seat 36 moves to a position where the occupant can comfortably spend time in the vehicle. When the vehicle reaches a speed equal to or lower than the critical speed and stops, the backlight is turned on so that the screen of the touch panel 28 can be easily identified by the occupant. At the same time, the seat 36 moves to a position where the passenger can easily get on and off the vehicle.

When the vehicle stops and the occupant grips the assist grip 26 and pushes out the assist grip 26, the occupant touches the screen of the touch panel 28.例文帳に追加When the passenger's contact with the touch panel 28 is detected, the locked state between the door 4 and the vehicle body is released, and the passenger can get in and out of the vehicle. When an occupant gets on the vehicle and grips the assist grip 26 to close the door 4, the occupant touches the surface of the assist grip 26 facing the outside of the vehicle and does not touch the touch panel 28.例文帳に追加Therefore, after the latch 12 comes into contact with the striker 10, it is once displaced to the open position, and when the door 4 is completely closed, the latch 12 is displaced to the latch position where it engages with the striker 10 according to the biasing force, and the door 4 is closed. locked to the vehicle body.

Next, the effect of the door lock device 2 will be explained. In the door lock device 2, the distinguishability of the touch panel 28 is low when the vehicle speed is higher than the critical speed. Since the identifiability of the touch panel 28 is lowered when the vehicle is running compared to when the vehicle is stopped, there is little possibility that the occupant will try to unlock the door 4 while the vehicle is running. . Further, since the touch panel 28 for releasing the latching of the door 4 to the vehicle body is provided on the assist grip 26, the occupant only has to grasp the assist grip 26 in order to enable the door 4 to be opened and closed. , the locking of the door 4 to the vehicle body can be easily released.

Furthermore, since the touch panel 28 is provided on the surface of the assist grip 26 facing the inside of the vehicle, the occupant can easily touch the touch panel 28 when opening the door 4, and can easily release the engagement between the door 4 and the vehicle body. can. On the other hand, when the occupant closes the door 4, it is difficult for the occupant to come into contact with the surface of the assist grip 26 facing the inside of the vehicle. Become.

When the vehicle is traveling at a speed above the critical speed, the control unit 42 receives a signal corresponding to a touch from the touch panel 28 and does not take any action. The door 4 is prevented from being opened and closed while the vehicle is running at a speed higher than the critical speed, thereby enhancing the safety of the occupants.

When the door 4 is unlocked, the seat actuator 38 moves the seat 36 to a position where the passenger can easily get on and off. Therefore, it is easy for passengers to get in and out of the vehicle.

<<Second Embodiment>>
The door lock device 2 according to the second embodiment of the present invention differs from the first embodiment only in the installation location of the touch panel 28 . In the first embodiment, the touch panel 28 is provided on the assist grip 26, but in the second embodiment, the touch panel 28 is provided on the inner side surface of the pull handle 24, as shown in FIG.

As shown in FIG. 7A, when the latch mechanism 14 is unlocked from the state in which the door 4 is held in the closed position and the occupant can open and close the door 4, the touch panel 28 is displayed as in the first embodiment. Lights up, and the touch panel 28 is in a state of high discrimination power. On the other hand, when the latch mechanism 14 is locked to hold the door 4 in the closed position (for example, when the vehicle is traveling at a speed higher than the predetermined speed), as shown in FIG. In addition, the touch panel 28 is turned off as in the first embodiment, and the discriminating power is lowered. In order to open the door 4 when the touch panel 28 is turned on, the passenger touches the screen of the touch panel 28 when pushing out the door by grasping the concave portion provided in the pull handle 24, the latch actuator 16 is driven, Latch 12 is in the open position.

In the second embodiment as well, since the identification power of the touch panel 28 is lower when the vehicle is running than when the vehicle is stopped, the occupant locks the doors 4 while the vehicle is running. Less likely to try to remove it. In addition, since the touch panel 28 is provided on the inner side of the pull handle 24 , the passenger easily touches the touch panel 28 when pushing out the door 4 by gripping the pull handle 24 . Therefore, the operation of releasing the door 4 from the vehicle body and opening the door 4 is facilitated.

<<Third Embodiment>>
The door lock device 2 according to the third embodiment of the present invention differs only in the control flow performed by the control unit 42 . Processing performed by the control unit 42 according to the third embodiment will be described with reference to FIG. The control unit 42 constantly receives signals from the vehicle speed sensor 40 while the vehicle is starting and running. The control unit 42 calculates the vehicle speed based on the received signal and determines whether the vehicle speed is greater than the critical speed (ST1). When it is determined that the vehicle speed is below the critical speed, it is determined whether or not the door lock button 41a of the manual lock means 41 is at the unlocked position (ST2). If it is determined in ST1 that the vehicle speed is higher than the critical speed, or if it is determined in ST2 that the door lock button 41a of the manual lock means 41 is in the locked position, the control unit 42 will cause the lock actuator 18 to If it is stopped, the lock actuator 18 is driven, and if the lock actuator 18 is being driven, the drive is maintained (ST5). Actuation of the lock actuator 18 locks the locking mechanism and locks the latch 12 in the latched position. At the same time, the optical display unit 34 is controlled to perform a dark display (ST9), and when the seat 36 is not at the driving position, the seat actuator 38 is driven to bring the seat 36 to the driving position (ST10), and the door lock button 41a is pressed. When it is in the unlocked position, the position of the door lock button 41a is moved to the locked position (ST7). On the other hand, if it is determined in ST1 that the vehicle speed is below the critical speed and if it is determined in ST2 that the door lock button 41a is at the unlocked position, the control unit 42 controls the lock actuator 18 to be driven. is stopped, and when the lock actuator 18 is stopped, the stopped state is maintained (ST3), and the optical display section 34 is controlled to perform bright display (ST6). Further, when the vehicle speed is below the critical speed and touch panel 28 detects the contact of the passenger (ST12), latch actuator 16 is driven when latch actuator 16 is stopped, and latch actuator 16 is driven. If not, the driven state is maintained (ST13). Therefore, after the processing of ST10, latch 12 is in the open position. At the same time, when the seat 36 is not at the boarding/alighting position, the seat actuator 38 is driven to move the seat 36 to the boarding/alighting position (ST14).

This concludes the description of the specific embodiments. In the present invention, the touch panel 28 was used to configure the input means, but the touch panel 28 is not limited to the touch panel 28. For example, a button is used as the touch sensor 32, and an optical display unit As 34, a light emitting diode for turning on/off the button may be used.

Further, even when the touch panel 28 is used, it is not limited to one using an in-cell type TFT liquid crystal display, and any form of the touch panel 28 may be used. For example, the touch panel 28 may use organic electroluminescence. Also, the touch sensor 32 is not limited to the capacitive type. For example, a resistive film system or a surface acoustic wave system may be used. Further, the touch panel 28 does not necessarily have to be transparent. If the screen display of the touch panel 28 is black when the light is off, the appearance of the liquid crystal touch panel 28 and the surrounding assist grips 26 can be changed by making the assist grips 26 black. becomes a continuous form, and is configured with good design.

The installation location of the control unit 42 is not limited, and the control unit 42 may be installed in the vehicle body, for example, in the lower part of the vehicle body. The connection between the control unit 42 and the vehicle speed sensor 40, the connection between the control unit 42 and the vehicle speed sensor 40, and the connection between the touch panel 28 and the vehicle speed sensor 40 are not limited to wired electrical wiring. These connections may be in any form in which signals can be exchanged, and may be, for example, wired connections such as wireless or optical fiber connections.

Although the vehicle state sensor in the first embodiment and the second embodiment is the vehicle speed sensor 40, the vehicle state sensor is not limited to the vehicle speed sensor 40. FIG. As shown in FIG. 8, the vehicle state sensor has a range sensor 80 that detects the range of the shift lever indicating the state of the transmission. It may be configured to determine whether it is in position. At that time, when it is determined that the shift lever is in the parking position, the drive of the lock actuator 18 is stopped, and the range sensor 80 determines that the shift lever is in a position other than the parking position (for example, reverse position, neutral position, drive position). position, etc.), the control unit 42 drives the lock actuator 18 .

Further, as shown in FIG. 9, the vehicle state sensor has a parking brake sensor 90 for detecting the state of the parking brake. It may be configured to determine whether the parking brake is in the park position. At that time, when it is determined that the parking brake is in the parking position, the drive of the lock actuator 18 is stopped, and when it is determined that the parking brake is not in the parking position, the lock actuator 18 is driven. Further, the vehicle state sensor may include more than one of the vehicle speed sensor 40 , the range sensor 80 and the parking brake sensor 90 . Further, the vehicle state sensor may include a sensor that detects the traffic of vehicles and people outside the door 4 . By including the above sensor, the safety of opening the door 4 by the occupant is enhanced.

In the first and second embodiments, the control unit 42 drives the seat actuator 38 to move the seat 36 to the driving position when the vehicle speed exceeds the critical speed. The timing at which the unit 42 moves the seat 36 to the driving position is not limited to this. For example, the processing of the control unit 42 may be configured such that when the vehicle speed becomes greater than zero, the control unit 42 drives the seat actuator 38 to move the seat 36 to the driving position.

Further, although the touch sensor 32 detects the contact by the passenger, it may be configured to detect the pressing force and unlatch the latch mechanism 14 when the pressing force is greater than or equal to a predetermined pressing force. By detecting the pressing force, it is possible to avoid unlatching due to unintentional contact by the passenger or unlatching due to the touch of a child's hand, thereby further enhancing the safety of the passenger.

2: Door lock device 4: Door 10: Striker 14: Latch mechanism 16: Latch actuator 17: Lock mechanism 18: Lock actuator 24: Pull handle 26: Assist grip 28: Touch panel (display/input device)
30: cover member 32: touch sensor 34: optical display unit 36: seat 38: seat actuator 40: vehicle speed sensor (vehicle condition sensor)
42: Control unit 80: Range sensor (vehicle state sensor)
90: Parking brake sensor (vehicle state sensor)

Claims (1)

A door lock device,
a touch panel provided on the inner side of a vehicle door and capable of switching between a dark display with low discrimination and a bright display with high discrimination;
a vehicle status sensor for obtaining at least one of vehicle speed, transmission gear position, and parking brake operating status;
a control unit that sets the touch panel to the dark display when the door is locked, and sets the touch panel to the light display when the door is unlocked;
A gripping portion for gripping by an occupant is provided on the vehicle inner side surface of the door,
The grip portion has an inner surface facing toward the vehicle interior and an outer surface facing toward the vehicle exterior,
The touch panel is provided on the inner surface of the grip,
When the touch panel performs the dark display, it exhibits the same appearance in design as the inner surface of the grip part,
When the touch panel is performing the bright display, the control unit determines whether the vehicle speed is equal to or less than a predetermined speed when the vehicle state sensor has acquired the vehicle speed, or the vehicle state when the gear position is in the parking position, if the sensor has acquired the gear position; or, if the vehicle state sensor has acquired the operating state of the parking brake, the parking brake is A door lock device that unlocks the door from the vehicle body at any time during operation based on an input received by the touch panel.

Images