JP7392007B2 - door control system - Google Patents

Description

The present invention relates to a technique for controlling a door of a vehicle having a slope.

As a vehicle for allowing a wheelchair to get on and off through a door, Patent Document 1 describes a vehicle that includes a lift device and a wheelchair fixing device for fixing the wheelchair to the lift device. In the vehicle of Patent Document 1, the lift device and the wheelchair device are configured to be operable with the door open. In such a vehicle, if the door is closed while the wheelchair is getting on or off, there is a risk that the wheelchair and/or the lift device will be caught in the door.

Furthermore, Patent Document 2 describes a vehicle that stops the door closing operation when a door is detected to be trapped based on the imaging result of a camera during the door closing operation.

Japanese Patent Application Publication No. 2012-61047 Japanese Patent Application Publication No. 2005-90082

Here, it is conceivable to apply the technique described in Patent Document 2 to a vehicle in which a loaded object is loaded onto or off the vehicle via a slope. However, it is difficult for loaded items (e.g. wheelchairs, luggage, etc.) that are passing on the slope to avoid the closing door, and if the anti-pinch function is delayed or does not operate, the door may be closed. may interfere with the loaded object.

The present invention has been made in view of the above points, and an object of the present invention is to provide a door control system capable of preventing interference between a door and a loaded object passing on a slope.

In order to solve the above-mentioned problems, the door control system of the present invention includes a door provided at an opening of a vehicle body, a drive unit that opens and closes the door, a control unit that controls the drive unit, and a door that is provided at an opening of a vehicle body. The slope includes a slope that can be placed outside the vehicle, and a slope lock that can fix the slope inside the vehicle, the slope includes a striker that is held by the slope lock, and the slope lock has a state in which the striker is held. The control unit includes a switch that changes a connection state with the control unit between a non-holding state and a non-holding state, and the control unit prohibits the drive unit from closing the door when the connection state corresponds to the non-holding state. , the switch includes a first switch and a second switch, and the control unit controls the drive when the connection state of the first switch and the connection state of the second switch are different. The closing operation of the door by the unit is prohibited .

According to the present invention, interference between the door and the load passing on the slope can be prevented.

1 is a side view schematically showing a vehicle to which a door control system according to a first embodiment of the present invention is applied. FIG. 2 is a rear view schematically showing a striker and a slope lock of the door control system according to the first embodiment of the present invention. FIG. 1 is a block diagram schematically showing a door control system according to first and second embodiments of the present invention. FIG. 1 is a side view schematically showing a slope lock according to a first embodiment of the present invention. FIG. 2 is a side view schematically showing the internal structure of the slope lock according to the first embodiment of the present invention, and is a diagram showing a striker holding state. FIG. 2 is a side view schematically showing the internal structure of the slope lock according to the first embodiment of the present invention, and is a diagram showing a state in which the striker is not held. It is a side view which shows typically the internal structure of the slope lock based on the second embodiment of this invention, and is a figure which shows a striker holding state. It is a side view which shows typically the internal structure of the slope lock based on the second embodiment of this invention, and is a figure which shows a striker non-holding state. FIG. 3 is a block diagram schematically showing a door control system according to a third embodiment of the present invention. It is a side view which shows typically the internal structure of the slope lock based on 3rd embodiment of this invention, and is a figure which shows a striker holding state. It is a side view which shows typically the internal structure of the slope lock based on 3rd embodiment of this invention, and is a figure which shows a striker non-holding state. FIG. 7 is a side view schematically showing the internal structure of the slope lock according to the third embodiment of the present invention, and is a diagram showing a state in which the ratchet is disengaged while the striker is being held. It is a table for explaining a failure determination method by a door control system according to a third embodiment of the present invention. It is a table for explaining the door opening/closing control method by the door control system according to the third embodiment of the present invention.

Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In the reference drawings, "front and rear" indicates the front and rear directions in the traveling direction of the vehicle, and "left and right" indicate the left and right directions (vehicle width direction) as seen from the driver's seat. Further, in the following description, regarding the striker and slope lock, one (left side) of the striker and slope lock provided in a pair of left and right will be explained.

<First embodiment>
As shown in FIG. 1, a vehicle 2 to which a door control system 1A according to the first embodiment of the present invention is applied includes a door 3 that can be opened and closed with an opening 2c formed in a rear surface 2b of a vehicle body 2a, and a door 3 that can be opened and closed. A slope 4 that can be constructed between a floor surface 2d of the vehicle body 2a and the ground G via a portion 2c is provided. The vehicle 2 can be loaded with objects (for example, a wheelchair C, luggage, etc.) via a slope 4.

The door 3 is provided so as to be rotatable about the left-right axis about the upper edge of the opening 2c. The slope 4 is provided so as to be rotatable around a left-right axis about the rear end of the floor surface 2d (near the lower edge of the opening 2c). The slope 4 includes a plurality of plate parts 4a connected to each other so as to be slidable or foldable. The slope 4 is stored in a vehicle interior in an upright position with a plurality of plate parts 4a stacked on top of each other. Further, the slope 4 is deployed outside the vehicle with the plurality of plate portions 4a being pulled out from each other. The slope 4 includes a pair of strikers 4b provided at both ends in the vehicle width direction. The striker 4b has a U-shape in plan view when the slope 4 is in an upright position, and is connected to the edge of the plate portion 4a of the slope 4 at both ends of the U-shape.

<Door control system>

As shown in FIG. 3, the door control system 1A according to the first embodiment of the present invention includes a door 3, a drive section 5, an electric winch device 6, a remote control device 7, a control section 8A, and a light L. and a slope lock 9A (see FIG. 4).

<Drive section>
The drive unit 5 is a motor that opens and closes the door 3 by rotating it around an axis.

<Electric winch device>
The electric winch device 6 includes a belt 6a, a drum to which the base end side of the belt 6a is fixed, and a motor that rotates the drum. The electric winch device 6 winds the belt 6a around the drum or allows the belt 6a to be pulled out from the drum by rotating the drum with a motor. The electric winch device 6 is capable of winding up or pulling out the belt 6a while a hook 6b (see FIG. 1) provided at the tip of the belt 6a is locked to a load (for example, a wheelchair C). This assists the load to pass on the slope 4 and get on and off the vehicle 2.

<Remote control device>
The remote control device 7 is carried by the user and is a device for transmitting signals for opening and closing the door 3 and signals for operating the motor of the electric winch device 6 to the control unit 8A. The remote control device 7 includes an operation section (such as a button) that can be operated by a user, and a remote control control section that transmits the operation result of the operation section to the control section 8A.

<Control unit>
The control unit 8A includes a CPU (Central Processing Unit), a ROM (Read-Only Memory), a RAM (Random Access Memory), an input/output circuit, and the like. The control unit 8A includes a door control unit 8a and a winch control unit 8b as functional units. The door control unit 8a receives the operation result transmitted by the remote control device 7, and controls the drive unit 5 to open and close the door 3 based on the received operation result. The door control unit 8a allows or prohibits the closing operation of the door 3 by the driving unit 5 based on the connection state of the switch corresponding to the holding state of the slope 4 (striker 4b) by the slope lock 9A. Note that the door 3 is configured so that it can be manually closed even when the drive unit 5 is prohibited from closing it. The winch control unit 8b receives the operation result transmitted by the remote control device 7, and drives the motor based on the received operation result, thereby winding the belt 6a around the drum or pulling it out from the drum.

<Light>
The light L is arranged on a conductive wire that connects a switch 70A provided in a slope lock 9A, which will be described later, and a control section 8A. The light L is, for example, an LED (Light Emitting Diode), and is turned on when the switch 70A is pressed (connected) and turned off when the switch 70A is not pressed (disconnected). The light L can be installed, for example, in the interior member 2e (see FIG. 2).

<Slope Rock>
As shown in FIG. 2, the slope lock 9A is provided near the opening 2c of the rear surface 2b of the vehicle body 2a, and is a device for holding the slope 4 in an upright and stored state. The slope lock 9A is covered by the interior material 2e of the vehicle 2. A hole 2f through which the striker 4b can pass is formed on the rear surface of the interior material 2e, and a hole 2g through which the lever 50 is inserted is formed on the upper surface of the interior material 2e.

As shown in FIGS. 4 to 6, the slope lock 9A has a first plate 10 and a second plate 20 that constitute the main body of the slope lock 9A, and and a latch 30A that is rotatably provided. Further, the slope lock 9A includes a ratchet 40, a lever 50, and a tension spring 60 as a mechanism for regulating the rotation range of the latch 30A. The slope lock 9A also includes a switch 70A that can be pressed by the latch 30A. Further, the slope lock 9A includes a holder 90 and a cushion 100. Note that in FIGS. 5 and 6, the holder 90 and the cushion 100 are omitted.

≪First plate and second plate≫
The first plate 10 is a plate-like member made of metal or resin and extending in the front-rear direction and the up-down direction. The second plate 20 is a metal plate-like member that is provided outside the first plate 10 in the vehicle width direction and extends in the front-rear direction and the up-down direction. The first plate 10 and the second plate 20 are fixed to the vehicle body 2a at their upper and lower ends with bolts or the like (not shown). The front end of the second plate 20 projects further forward than the front end of the first plate 10. Grooves 11 and 21 that are recessed forward are formed in the intermediate portions of the rear ends of the first plate 10 and the second plate 20 in the height direction, respectively. The groove portions 11 and 21 are slope holding portions that hold the striker 4b inserted into the groove portions 11 and 21.

≪Latch≫
The latch 30A is a metal plate-like member (for example, a long plate-like member made of a steel plate) that is rotatably provided between the first plate 10 and the second plate 20. The latch 30A integrally includes a central portion 31, a first claw portion 32, a pressing portion 33A, and a second claw portion 34.

The central portion 31 is a portion having a substantially circular shape when viewed from the vehicle interior side, and is attached to the first plate 10 and the second plate 20 so as to be rotatable around an axis X1 extending in the vehicle width direction. It is being The axis X1 is located at the lower front of the grooves 11 and 21.

The first claw portion 32 is a portion that projects radially outward (rearward) from the center portion 31, and extends in a clockwise direction when viewed from the passenger compartment side. The first claw portion 32 is formed at a position where it can close the openings of the groove portions 11 and 21. The groove formed between the first claw portion 32 and the center portion 31 is dimensioned to allow the striker 4b to be inserted therethrough.

The pressing portion 33A is a portion that projects radially outward (forward) from the central portion 31. The pressing portion 33A is formed at a position where the switch 70A can be pressed. In this embodiment, the pressing portion 33A is formed on the substantially opposite side of the first claw portion 32 with the axis X1 in between.

The second claw portion 34 is a portion that projects radially outward (upward) from the central portion 31. The second pawl portion 34 is formed at a position where it can be engaged with the ratchet 40. In this embodiment, the second claw portion 34 is formed at a circumferentially intermediate portion between the first claw portion 32 and the pressing portion 33A.

That is, a first claw part 32, a pressing part 33A, and a second claw part 34 are formed in this order at the outer end in the radial direction of the central part 31 in a counterclockwise direction from the rear end when viewed from the passenger compartment side. has been done.

The latch 30A is a metal member, and at least a pressing portion 33A that contacts the switch 70A is coated with resin, which is a non-magnetic material.

≪Ratchet≫
The ratchet 40 is a metal plate-like member (for example, a long plate-like member made of a steel plate) that is rotatably provided between the first plate 10 and the second plate 20. The rear end portion of the ratchet 40 is rotatably attached to the first plate 10 and the second plate 20 around an axis X2 extending in the vehicle width direction. The axis X2 is located above the grooves 11 and 21. A pawl portion 41 is formed at the lower end of the ratchet 40 at an intermediate portion in the front-rear direction. The claw portion 41 is engageable with the second claw portion 34 .

≪Lever≫
The lever 50 is a member for rotating the ratchet 40 around the axis X2 by manual operation by the user. The lower end of the lever 50 is attached to the front end of the ratchet 40 at the axis X3.

≪Switch≫
The switch 70A is attached to the lower part of the front end of the second plate 20. The switch 70A includes a main body part 71 in which a switch main body is built, a contact 72 protruding from the main body part 71 so as to be movable forward and backward, and a leaf spring part 73 extending from the main body part 71. The switch 70A is provided at a position where the first pressing portion 33A can press the contact 72 via the leaf spring portion 73. The switch 70A is in a connected state when the contactor 72 is pressed, and outputs an ON signal to the control unit 8A. Further, the switch 70A is in a non-connected (disconnected) state when the contactor 72 is not pressed, and stops outputting the ON signal to the control unit 8A. When the contactor 72 shifts from the non-pressed state to the pressed state, it retracts into the main body 71 and presses the switch main body to enter the connected state. When the contactor 72 shifts from the pressed state to the non-pressed state, it advances due to the restoring force of a spring or the like and returns to the position before being pressed. This causes the switch body to be in the disconnected state.

≪Holder and cushion≫
The holder 90 is a long plate-like member made of resin or metal that is attached to the inside of the first plate 10 in the vehicle width direction on the front side of the grooves 11 and 21. The cushion 100 is a resin member attached to the middle part of the rear end of the holder 90 in the height direction. The rear end of the cushion 100 is interposed between the bottoms (front ends) of the grooves 11 and 21, and serves as a cushioning material that prevents the striker 4b from coming into direct contact with the bottoms of the grooves 11 and 21.

<Slope lock open state>
As shown in FIG. 6, when the slope 4 is unfolded, the slope lock 9A does not hold the striker 4b. In this state, the first claw portion 32 is located below the groove portions 11, 21 and opens the openings of the groove portions 11, 21. Further, the pressing portion 33A is spaced apart from the switch 70A.

<Slope lock closed state>
When the slope 4 is manually retracted by the user, the striker 4b presses the outer peripheral surface of the latch 30A forward while entering the grooves 11 and 21. The latch 30A is rotated clockwise about the axis X1 when viewed from the passenger compartment side by the pressure of the striker 4b. Due to this rotation, the latch 30A enters a state in which the first claw portion 32 closes the openings of the groove portions 11 and 21, and the pressing portion 33A presses the switch 70A. Further, the second claw portion 34 of the latch 30A engages with the claw portion 41 of the ratchet 40, so that the counterclockwise rotation of the latch 30A is restricted when viewed from the passenger compartment side (see FIG. 5). .

<Slope lock release operation>
Note that when the user pulls up the lever 50, the ratchet 40 rotates counterclockwise around the axis X2 when viewed from the passenger compartment side, and the pawl portion 41 of the ratchet 40 and the second pawl of the latch 30A rotate. The engagement of portion 34 is released. In this state, the latch 30A rotates counterclockwise about the axis X1 when viewed from the passenger compartment side due to the restoring force of the tension spring 60. Due to this rotation, the first claw portion 32 of the latch 30A opens the openings of the grooves 11 and 21, and the pressing portion 33A is separated from the switch 70A (see FIG. 6).

Note that the switch 70A may be configured to be in a pressed state (connected state) when the slope 4 is in the retracted state and output an ON signal to the control unit 8A. However, from the viewpoint of power consumption, the switch 70A is in the pressed state (connected state) when the slope 4 is in the deployed state (including the deployed state and the retracted state) for a relatively short time, and the switch 70A is turned ON to the control unit 8A. The above configuration that outputs a signal is preferable.

A door control system 1A according to the first embodiment of the present invention includes a door 3 provided in an opening 2c of a vehicle body 2, a drive section 5 that opens and closes the door 3, and a control section 8A that controls the drive section 5. a slope 4 that can be placed outside the vehicle through the opening 2c; and a slope lock 9A that can secure the slope 4 inside the vehicle; The slope lock 9A includes a switch 70A that changes the connection state of the striker 4b between the held state and the non-held state, and the control unit 8A changes the connected state to the non-held state. In corresponding cases, the closing operation of the door 3 by the drive unit 5 is prohibited.
Therefore, the door control system 1A can prevent the door 3 from closing when the slope 4 is used, and can prevent interference between the door 3 and a loaded object passing on the slope 4.

In the door control system 1A, the control section 8A allows the drive section 5 to close the door 3 when the connection state corresponds to the holding state.
Therefore, the door control system 1A can perform the closing operation of the door 3 while the slope 4 is retracted.

In the door control system 1A, the switch 70A is connected to the control section 8A via a light L.
Therefore, the door control system 1A can notify the user of the state of the slope 4 using the light L, and, for example, when the state of the slope 4 and the on/off state of the light L are different, the door control system 1A It is possible to notify the user of a malfunction.

Further, in the door control system 1A, the slope lock 9A includes a main body portion having a slope holding portion capable of holding the striker, and a latch 30A rotatably attached to the main body portion, and the latch 30A is provided with a latch 30A rotatably attached to the main body portion. , a claw portion that can open and close the slope holding portion, and a pressing portion 33A that can press the switch 70A; Press 70A.
Therefore, the door control system 1A can transmit the opening/closing information of the slope 4 to the control unit 8A with a simple structure, and can prevent the door 3 from closing when the slope 4 is used.

The pressing portion 33A of the latch 30A is made of a non-magnetic material.
Therefore, the door control system 1A can prevent malfunction of the switch due to magnetism.

<Second embodiment>
Next, a door control system according to a second embodiment of the present invention will be described, focusing on the differences from the door control system 1A according to the first embodiment. As shown in FIGS. 7 and 8, the slope lock 9B in the door control system 1B according to the second embodiment of the present invention includes a latch 30B and a switch 70B instead of the latch 30A and switch 70A.

In the latch 30B, the pressing portion 33A is omitted. The switch 70B is provided at a position where the front end of the ratchet 40 can press the contact 72 via the leaf spring section 73. As shown in FIG. 7, when the striker 4b is held, the front end of the ratchet 40 is separated from the switch 70B (does not press it). As shown in FIG. 8, when the striker 4b is not held, the front end of the ratchet 40 presses the switch 70B with the claw 41 riding on the second claw 34.

In this embodiment, the ratchet 40 is a metal member, and at least the front end portion (pressing portion) that contacts the switch 70B is coated with resin, which is a non-magnetic material.

Note that the switch 70B may be configured to be in a pressed state (connected state) when the slope 4 is in the retracted state and output an ON signal to the control unit 8A. However, from the viewpoint of power consumption, the switch 70B is in the pressed state (connected state) when the slope 4 is in the deployed state (including the deployed state and the retracted state) for a relatively short period of time, and the switch 70B is turned ON to the control unit 8A. The above configuration that outputs a signal is preferable.

In the door control system 1B according to the second embodiment of the present invention, the slope lock 9B includes a main body portion having a slope holding portion capable of holding the striker 4b, and a latch 30B rotatably attached to the main body portion. and a ratchet 40 that is rotatably attached to the main body and that restricts the rotation range of the latch 30B, the latch 30B having a claw that can open and close the slope holding part, The ratchet 40 includes a pressing part (front end part) capable of pressing the switch 70B, and the ratchet 40 has a state in which the claw part closes the slope holding part, and the claw part opens the slope holding part. The latch 30B is prevented from rotating in the direction in which the latch 30B is rotated, and the pressing portion presses the switch 70B with the claw portion opening the slope holding portion.
Therefore, the door control system 1B can transmit the opening/closing information of the slope 4 to the control unit 8A with a simple structure, and can prevent the door 3 from closing when the slope 4 is used.

The pressing portion of the ratchet 40 is made of a non-magnetic material.
Therefore, the door control system 1B can prevent malfunction of the switch due to magnetism.

<Third embodiment>
Next, a door control system according to a third embodiment of the present invention will be described, focusing on the differences from the door control system 1A according to the first embodiment. As shown in FIG. 9, a door control system 1C according to the third embodiment of the present invention includes a control section 8C instead of the control section 8A and the light L. Further, as shown in FIGS. 10 to 12, the door control system 1C according to the third embodiment of the present invention includes a latch 30C, a first switch 70C, and a second switch instead of the latch 30A and switch 70A. Equipped with 80C.

≪Latch≫
The latch 30C further includes a second pressing portion 33C in addition to the (first) pressing portion 33A. The second pressing portion 33C is a portion that projects radially outward (forward) from the central portion 31. The second pressing portion 33C is formed at a position where it can press the second switch 80C. In this embodiment, the second pressing portion 33C is formed on the substantially opposite side of the first claw portion 32 with the axis X1 in between, and above the first pressing portion 33A.

The latch 30C is a metal member, and the (first) pressing part 33A and the second pressing part 33C, which are parts that contact at least the first switch 70C and the second switch 80C, are made of a non-magnetic material. covered by.

≪First switch≫
The first switch 70C is attached to the lower part of the front end of the second plate 20. The first switch 70C includes a main body 71 in which a switch body is built, and a contact 72 that protrudes from the main body 71 in a movable manner. The first switch 70C is provided at a position where the first pressing portion 33A can press the contactor 72.

≪Second switch≫
The second switch 80C is attached to the upper part of the front end of the second plate 20. The second switch 80C includes a main body part 81 in which a switch body is built-in, and a contactor 82 that protrudes from the main body part 81 so as to be movable forward and backward. The second switch 80C is provided at a position where the second pressing portion 33C can press the contactor 82. The second switch 80C enters a connected state when the contactor 82 is pressed, and outputs an ON signal to the control unit 8C. Further, the second switch 80C is in a non-connected (disconnected) state when the contactor 82 is not pressed, and stops outputting the ON signal to the control unit 8C. When the contactor 82 shifts from the non-pressed state to the pressed state, it retracts into the main body 81 and presses the switch to enter the connected state. When the contactor 82 shifts from the pressed state to the non-pressed state, it advances due to the restoring force of a spring or the like and returns to the position before being pressed. This causes the switch body to be in the disconnected state.

<Slope lock open state>
As shown in FIG. 11, when the slope 4 is unfolded, the slope lock 9C does not hold the striker 4b. In this state, the first claw portion 32 is located below the groove portions 11, 21 and opens the openings of the groove portions 11, 21. Further, the first pressing portion 33A presses the first switch 70C, and the second pressing portion 33C presses the second switch 80C.

<Slope lock closed state>
When the slope 4 is manually retracted by the user, the striker 4b presses the outer peripheral surface of the latch 30C forward while entering the grooves 11 and 21. The latch 30C is rotated clockwise about the axis X1 when viewed from the vehicle interior side by pressure from the striker 4b. Due to this rotation, the first claw portion 32 of the latch 30C closes the openings of the grooves 11 and 21, the first pressing portion 33A separates from the first switch 70C, and the second pressing portion 33C closes the openings of the grooves 11 and 21. It is in a state separated from the second switch 80C. Further, the second claw portion 34 of the latch 30C engages with the claw portion 41 of the ratchet 40, so that the counterclockwise rotation of the latch 30C is restricted when viewed from the passenger compartment side (see FIG. 10). .

<Slope lock release operation>
As shown in FIG. 12, when the user pulls up the lever 50, the ratchet 40 rotates counterclockwise about the axis X2 when viewed from the passenger compartment side, and the claw portion 41 of the ratchet 40 and the latch 30C The engagement of the second claw portion 34 is released. In this state, the latch 30C rotates counterclockwise about the axis X1 when viewed from the passenger compartment side due to the restoring force of the tension spring 60. Due to this rotation, the first claw portion 32 of the latch 30C opens the openings of the grooves 11 and 21, the first pressing portion 33A presses the first switch 70C, and the second pressing portion 33C presses the first switch 70C. The second switch 80C is pressed (see FIG. 11).

Note that the first switch 70C and the second switch 80C may be configured to be in a pressed state (connected state) when the door 3 is closed and output an ON signal to the control unit 8C. However, from the viewpoint of power consumption, the first switch 70C and the second switch 80C are in a pressed state (connected state) when the door 3 is open for a relatively short time, and output an ON signal to the control unit 8C. The above configuration is preferable.

<System failure determination method>
As shown in FIG. 9, the control unit 8C further includes a determination unit 8c as a functional unit. The determination unit 8c determines the state of the slope 4 (retracted/deployed) based on the connection state of the first switch 70C and the second switch 80C, and also determines the presence or absence of a failure in the door control system 1C. The section 8c is output to the door control section 8a. The determination unit 8c determines that the slope 4 is in the retracted state when both the first switch 70C and the second switch 80C are in the non-pressed state (disconnected state). Further, the determination unit 8c determines that when the first switch 70C and the second switch 80C are both in the pressed state (connected state), the slope 4 is in the deployed state (including the state in which it is in the unfolding operation and in the retracting operation). It is determined that there is. Further, when the connection states of the first switch 70C and the second switch 80C are the same, the determination unit 8c determines that no failure has occurred in the door control system 1C (normal), and If the different states of the switch 70C and the second switch 80C continue for a predetermined period of time (for example, one minute), it is determined that a failure has occurred in the door control system 1C (abnormality).

As shown in FIG. 13(a), when the first switch 70C and the second switch 80C are switched from OFF to ON from the unfolded state of the slope 4, the determination unit 8c determines that the door control system 1C is determined to be normal.

On the other hand, as shown in FIGS. 13(b) and 13(c), even though one of the first switch 70C and the second switch 80C is switched from OFF to ON from the unfolded state of the slope 4, the other switch is turned ON. If the OFF state continues for a predetermined period of time, the determination unit 8c determines that the door control system 1C is abnormal.

Further, as shown in FIG. 13(d), when the first switch 70C and the second switch 80C are switched from ON to OFF from the state in which the slope 4 is retracted, the determination unit 8c controls the door control. System 1C is determined to be normal.

On the other hand, as shown in FIGS. 13(e) and 13(f), even though one of the first switch 70C and the second switch 80C is switched from ON to OFF from the stored state of the slope 4, the other one is switched from ON to OFF. If the ON state continues for a predetermined period of time, the determination unit 8c determines that the door control system 1C is abnormal.

<Control method for prohibiting door closing operation>
As shown in FIG. 14, when the slope 4 is in the retracted state and the determination result of the determination unit 8c is normal, the door control unit 8a controls the opening/closing of the door 3 by the drive unit 5 while the door 3 is stopped. The operation is permitted, and the opening/closing operation of the door 3 is continued while the door 3 is being opened/closed by the drive unit 5. Further, when the slope 4 is in the retracted state and the determination result of the determination unit 8c is abnormal, the door control unit 8a prohibits the opening/closing operation of the door 3 by the drive unit 5 while the door 3 is stopped, The opening/closing operation of the door 3 while the door 3 is being opened/closed by the drive part 5 is stopped.

If the determination result of the determination unit 8c made during the deployment of the slope 4 is normal, the door control unit 8a prohibits the opening/closing operation of the door 3 by the drive unit 5 from the state where the door 3 is stopped, The opening operation of the door 3 while the door 3 is being opened and closed by the drive part 5 is continued, and the closing operation is stopped.

When the slope 4 is in the unfolded state and the determination result of the determination unit 8c is normal, the door control unit 8a prohibits the opening/closing operation of the door 3 by the drive unit 5 from the state where the door 3 is stopped, and 3 continues the opening operation of the door 3 which is being opened and closed by the drive part 5, and stops the closing operation.
Further, when the slope 4 is in the unfolded state and the judgment result of the judgment section 8c is abnormal, the door control section 8a prohibits the opening/closing operation of the door 3 by the drive section 5 from the state where the door 3 is stopped. , stops the opening/closing operation of the door 3 while the door 3 is being opened/closed by the drive unit 5.

If the determination result of the determination unit 8c performed while the slope 4 is stored is normal, the door control unit 8a prohibits the drive unit 5 from opening and closing the door 3 from the state where the door 3 is stopped, The opening operation of the door 3 while the door 3 is being opened and closed by the drive part 5 is continued, and the closing operation is stopped.

In the door control system 1C according to the third embodiment of the present invention, the switch includes a first switch 70C and a second switch 80C, and the control unit 8C controls the connection state of the first switch 70C. If the connection state of the second switch 80C and the connection state of the second switch 80C are different, the closing operation of the door 3 by the drive unit 5 is prohibited.
Therefore, the door control system 1C can prevent the door 3 from malfunctioning by prohibiting the closing operation of the door 3 when the connection states of the two switches are different.

Further, in the door control system 1C, the control unit 8C controls the drive unit when the connection state of the first switch 70C and the connection state of the second switch 80C continue for a predetermined period of time. The closing operation of the door 3 is prohibited.
Therefore, the door control system 1C can prevent the door 3 from malfunctioning by prohibiting the closing operation of the door 3 when the connection state predetermined times of the two switches are different.

Further, in the door control system 1C, the control unit 8C determines that there is an abnormality when the connection state of the first switch 70C and the connection state of the second switch 80C are different; If the connection state of the first switch 70C and the connection state of the second switch 80C are the same, it is determined that they are normal.
Therefore, the door control system 1C can prevent the door 3 from malfunctioning by determining a failure based on the connection state of the two switches and prohibiting the closing operation of the door 3 in the event of failure.

Further, in the door control system 1C, the control unit 8C determines that an abnormality is occurring when the connection state of the first switch 70C and the connection state of the second switch 80C continue to be different for a predetermined period of time. It is determined that
Therefore, the door control system 1C determines that there is a failure when the connection states of two switches differ for a predetermined period of time, thereby preventing an erroneous determination that a failure occurs when the connection states of the two switches differ for only a short period of time. .

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and can be modified as appropriate without departing from the gist of the present invention. For example, the latch 30A according to the first embodiment, the ratchet 40 according to the second embodiment, and the latch 30C according to the third embodiment may each be entirely formed of a non-magnetic material.

1A, 1B, 1C Door control system 2 Vehicle 2c Opening 3 Door 4 Slope 4b Striker 5 Drive section 7 Remote control device 8A, 8C Control section 9A, 9B, 9C Slope lock 10 First plate (main body)
11 Groove (slope holding part)
20 Second plate (main body)
21 Groove (slope holding part)
30A, 30B, 30C Latch 32 First claw part (claw part)
33A Pressing part (first pressing part)
33C Second pressing part 40 Ratchet (pressing part)
70A, 70B Switch 70C First switch 80C Second switch

Claims (10)

A door provided in the opening of the vehicle body,
a drive unit that opens and closes the door;
a control unit that controls the drive unit;
a slope that can be placed outside the vehicle from the opening;
a slope lock capable of fixing the slope inside the vehicle;
Equipped with
the slope includes a striker held by the slope lock;
The slope lock includes a switch that changes a connection state with the control unit between a holding state and a non-holding state of the striker,
The control unit prohibits the drive unit from closing the door when the connection state corresponds to the non-holding state,
The switch includes a first switch and a second switch,
The control unit prohibits the drive unit from closing the door if the connection state of the first switch and the connection state of the second switch are different.
A door control system characterized by: The control unit prohibits the drive unit from closing the door when the connection state of the first switch and the connection state of the second switch continue for a predetermined period of time. A door control system as claimed in claim 1 . The control unit includes:
If the connection state of the first switch and the connection state of the second switch are different, it is determined that there is an abnormality,
The door control system according to claim 1, wherein the door control system is determined to be normal if the connection state of the first switch and the connection state of the second switch are the same. Claim 3 , wherein the control unit determines that there is an abnormality when the connection state of the first switch and the connection state of the second switch continue for a predetermined period of time. Door control system as described in. A door provided in the opening of the vehicle body,
a drive unit that opens and closes the door;
a control unit that controls the drive unit;
a slope that can be placed outside the vehicle from the opening;
a slope lock capable of fixing the slope inside the vehicle;
Equipped with
the slope includes a striker held by the slope lock;
The slope lock includes a switch that changes a connection state with the control unit between a holding state and a non-holding state of the striker,
The control unit includes:
Prohibiting a closing operation of the door by the drive unit when the connected state corresponds to the non-held state;
The switch is connected to the control unit via a light.
A door control system characterized by: A door provided in the opening of the vehicle body,
a drive unit that opens and closes the door;
a control unit that controls the drive unit;
a slope that can be placed outside the vehicle from the opening;
a slope lock capable of fixing the slope inside the vehicle;
Equipped with
the slope includes a striker held by the slope lock;
The slope lock includes a switch that changes a connection state with the control unit between a holding state and a non-holding state of the striker,
The control unit prohibits the drive unit from closing the door when the connection state corresponds to the non-holding state,
The slope lock is
a main body portion having a slope holding portion capable of holding the striker;
a latch rotatably attached to the main body;
Equipped with
The latch includes a claw part that can open and close the slope holding part, and a pressing part that can press the switch,
The pressing portion presses the switch with the claw portion opening the slope holding portion.
A door control system characterized by: The door control system according to claim 6 , wherein the pressing portion of the latch is made of a non-magnetic material. A door provided in the opening of the vehicle body,
a drive unit that opens and closes the door;
a control unit that controls the drive unit;
a slope that can be placed outside the vehicle from the opening;
a slope lock capable of fixing the slope inside the vehicle;
Equipped with
the slope includes a striker held by the slope lock;
The slope lock includes a switch that changes a connection state with the control unit between a holding state and a non-holding state of the striker,
The control unit prohibits the drive unit from closing the door when the connection state corresponds to the non-holding state,
The slope lock is
a main body portion having a slope holding portion capable of holding the striker;
a latch rotatably attached to the main body;
a ratchet rotatably attached to the main body and regulating a rotation range of the latch;
Equipped with
The latch includes a claw portion that can open and close the slope holding portion,
The ratchet includes a pressing part that can press the switch,
The ratchet restricts the latch from rotating in a direction in which the claw portion opens the slope holding portion in a state where the claw portion closes the slope holding portion,
The pressing portion presses the switch with the claw portion opening the slope holding portion.
A door control system characterized by: The door control system according to claim 8 , wherein the pressing portion of the ratchet is made of a non-magnetic material. The control unit allows the drive unit to close the door when the connection state corresponds to the holding state. door control system.

Images