JP2002256764A - Pinch preventing device for opening/closing body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pinch preventing device for an opening/closing body at a low cost. SOLUTION: Optical radio control devices 5 and 6 performing the communications of a control signal between a vehicle body 2 as a fixed member and a sliding door 3 as the opening/closing body and the detection of the presence or absence of an object such as a person 11 by optical communication are provided on the vehicle body 2 and the sliding door 3 respectively. The operation of the sliding door 3 is regulated based on the detection of the presence or absence of the object by the optical radio control devices 5 and 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing an object from being caught between a fixing member and an opening / closing member which automatically opens and closes the fixing member by an electric operation, that is, a device for preventing the holding member from being caught. .

[0002]

2. Description of the Related Art For example, a motor having a sliding door is provided with a driving motor for changing the so-called half-sliding state of the sliding door to a completely closed state and a driving motor for automatically opening and closing the sliding door. I have.

[0003]

In the above prior art, a function is added to prevent a person's hand or the like from being pinched between the sliding door and the vehicle body when the sliding door is automatically closed. It was very difficult to say that safety considerations were sufficient. However, in order to newly install a device that has the function of preventing pinching,
The apparatus itself became large-scale and there was a problem in cost.

[0004] The present invention has been made in view of the above circumstances, and has as its object to provide an inexpensive device for preventing the opening / closing member from being caught.

[0005]

According to a first aspect of the present invention, there is provided an opening / closing body for preventing the opening / closing member from being pinched, wherein the opening / closing body is automatically opened / closed by an electrical operation. A device for preventing an object from being pinched between the opening and closing body, wherein the fixing member and the opening and closing body
An optical wireless control device that performs communication of a control signal therebetween and detection of the presence or absence of the object by optical space transmission is provided, and based on the detection of the presence or absence of the object in the optical wireless control device, the opening and closing of the opening and closing body is performed. It is characterized in that the operation is regulated.

According to the first aspect of the present invention,
A control signal is transmitted and received by optical space transmission between the optical wireless control device of the fixed member and the optical wireless control device of the opening and closing body, and the presence or absence of an object is detected. Then, when it is detected by optical space transmission that there is an object between the fixed member and the opening / closing body, the operation of the opening / closing body is regulated based on the detection. For example, if it is detected that there is an object between the fixed member and the opening / closing body before the opening / closing body closes, the closing operation of the opening / closing body may be canceled while the object is being detected. If it is detected that an object is present between the fixed member and the opening / closing body during the closing operation of the opening / closing body, the operation of the opening / closing body is stopped or switched to the opening operation. still,
The automatic opening / closing includes both the meaning that the opening / closing body is automatically opened and closed by electrical operation and the meaning that it is automatically closed.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment in which an anti-jamming device for an opening / closing body of the present invention is applied to an automobile having a sliding door, (a) is a schematic block diagram in a state where the sliding door is closed, and (b) is a sliding door. It is a schematic block diagram in the state which opened. FIG. 2 is a flowchart for explaining that pinching is prevented,
FIG. 3 is a block diagram showing a detailed configuration of FIG.

In FIG. 1, an automobile indicated by reference numeral 1 includes a vehicle body 2 as a fixing member, and a slide door 3 as an opening / closing body slidably mounted on the vehicle body 2 in the front-rear direction. It is configured. In addition, the automobile 1 of the present embodiment is configured such that the slide door 3 automatically opens and closes with respect to the vehicle body 2 by an electric operation.

Reference numeral 4 denotes an opening frame for the slide door 3 provided on the vehicle body 2. An optical wireless control device 5 on the vehicle body 2 side, which constitutes an anti-jamming device, is provided at a door connecting portion of the opening frame portion 4. The optical wireless control device 5 on the vehicle body 2 receives power supply from the vehicle body battery and is controlled by the vehicle body control unit.

On the other hand, the slide door 3 is provided with an optical wireless control device 6 on the slide door 3 side, which constitutes an anti-jamming device, at a position facing the optical wireless control device 5 on the vehicle body 2 side. . The optical wireless control device 6 on the slide door 3 side loads various loads such as a motor 7 for an automatic slide door, a motor 8 for a power window, and a motor 9 for an easy closure provided on the slide door 3 via a door side control unit. It is connected to the.

The optical wireless control device 5 on the vehicle body 2 and the optical wireless control device 6 on the slide door 3 allow transmission and reception of control signals between the vehicle body 2 and the slide door 3 by optical space transmission. Is configured. That is,
For example, when a power window switch is operated on the vehicle body 2 side, a control signal based on the operation is transmitted from the optical wireless control device 5 on the vehicle body 2 side to the optical wireless control device 6 on the slide door 3 side (by optical space transmission). Transmission). When the transmitted control signal is received by the optical wireless control device 6 on the slide door 3 side,
The door-side control unit drives the power window motor 8 to move the window glass 10 of the slide door 3 up or down.

An optical wireless control device 5 on the vehicle body 2 side.
The optical wireless control device 6 on the side of the slide door 3 is provided with an object between the vehicle body 2 and the slide door 3 (for example,
The presence or absence of the person indicated by 1) is detected by optical space transmission,
The electric operation of the slide door 3 is regulated based on the result. That is, when the light in the optical space transmission is blocked and an object is detected between the vehicle body 2 and the slide door 3, the closing operation start signal of the slide door 3 is received while the object is detected. (Or cancel even if a closing operation start signal is received). When it is detected that an object exists between the vehicle body 2 and the slide door 3, the slide door 3
Is stopped or switched to an open operation (fully open state).

Here, the configuration of the optical wireless control device 5 on the vehicle body 2 will be described in more detail. The optical wireless control device 5 comprises a vehicle body control unit 12, a vehicle body transceiver 13, a vehicle body detector And a part 14. Similarly, the sliding door 3
The configuration of the optical wireless control device 6 on the side will be described in more detail.
And a door-side transceiver 16 and a door-side detector 17.

The vehicle body control section 12 has a microprocessor or the like and is configured to control the driving of the vehicle body transceiver 13. The vehicle body control unit 12 is connected to the vehicle body control unit, and is controlled by the vehicle body control unit (the vehicle body control unit is directly connected to the vehicle body without the vehicle body control unit 12). The drive of the main body side transceiver 13 may be controlled).

The vehicle body-side transceiver 13 and the door-side transceiver 16 are configured to have a transmission function and a reception function by optical space transmission (the body-body-side transceiver 13 has only a transmission function, and the door-side transceiver 16 has a transmission function). May be the reception function only). In the present embodiment, at least the control signal based on the operation of the power window switch, the closing operation start signal of the sliding door 3 and the like are transmitted from the vehicle body-side transceiver 13 by optical space transmission, and the door-side transceiver 16 receives the signals. It is configured to do so.

The vehicle body side detecting section 14 and the door side detecting section 17 can detect whether or not there is an object such as a person 11 between the vehicle body 2 and the sliding door 3 by optical space transmission. It is configured. Note that the vehicle body detection unit 14 may be incorporated in the vehicle body transceiver 13, and the door detection unit 17 may be incorporated in the door transceiver 16.

The door-side controller 15 has a microprocessor and the like, and is configured to control the driving of the door-side transceiver 16. The door-side control unit 15 is connected to a door-side control unit. The various control signals received by the door-side transceiver 16 are transmitted to the door-side control unit (the door-side control unit directly drives the door-side transceiver 16 without providing the door-side control unit 15). May be controlled).

The microprocessors provided in the vehicle-body-side control unit 12 and the door-side control unit 15 include:
A ROM, a CPU, an EEPROM, a RAM, an input / output port, and the like (not shown) are provided. The ROM is a read-only memory, and stores programs, fixed data, and the like. The CPU is a central processing unit and operates according to a control program stored in the ROM in advance. The above EEPROM
Reference numeral denotes an electrically erasable / rewritable read-only memory in which various set value information and the like are stored. RA above
M is a readable and writable memory, and the CPU
Has a data area for storing various data used in the course of the processing, and a work area used for the processing.

Next, referring to FIG. 2, a description will be given of a process related to pinch prevention executed by the CPU according to a control program stored in the ROM of the door-side controller 15 in advance. In addition, FIG. 1 is referred to as needed.

When the control program is started by activating the door-side control unit 15, the CPU executes initialization (not shown), sets flags in various flag areas provided in the work area of the RAM, and sets various buffers. It clears the area and resets the count value of various counter areas to zero. Then, the following steps S1 to S13 are sequentially executed.

First, in step S1, it is determined whether or not the slide door 3 is open (including both the fully opened state and the simply opened state). When the slide door 3 is closed (N in step S1), the process is repeated until the slide door 3 enters the above state (Y in step S1) because there is no entrapment.

Next, when the process proceeds to step S3, it is determined in step S3 whether or not the sliding door 3 is being closed. If the slide door 3 is not closed but remains open (step S
3) N), and the process proceeds to step S5. On the other hand, if the slide door 3 is being closed (Y in step S3), the process proceeds to step S9.

When the process proceeds to step S5, it is determined in step S5 whether there is an object such as the person 11 between the vehicle body 2 and the slide door 3. That is, it is determined whether or not there is an object such as the person 11 between the vehicle body 2 and the slide door 3 based on the detection results of the optical body transmission by the vehicle body main body side detection unit 14 and the door side detection unit 17. . If there is no object such as the person 11 between the vehicle body 2 and the slide door 3 (N in step S5), there is no possibility of pinching at that time, so step S1 is performed again.
Execute the processing of On the other hand, if there is an object such as the person 11 between the vehicle body 2 and the slide door 3 (Y in step S5), there is a risk of being pinched, so step S5 is performed.
Then, the processing shifts to step S7.

When the process proceeds to step S7, in step S7, a measure is taken so as not to receive the closing operation start signal of the slide door 3 (or cancel even if the closing operation start signal is received). Execute the process. That is, as long as there is an object such as the person 11 between the vehicle body 2 and the slide door 3, the processes of steps S5 and S7 are repeated.

On the other hand, when the process shifts from the process of step S3 to the process of step S9, an object such as a person 11 is placed between the vehicle body 2 and the slide door 3 while the slide door 3 is closed in step S9. It is determined whether or not there is. If there is no object such as the person 11 between the vehicle body 2 and the slide door 3 while the slide door 3 is closed (N in step S9), there is no possibility of being pinched at that point. The process moves to step S11. On the other hand, if there is an object such as the person 11 between the vehicle body 2 and the slide door 3 while the slide door 3 is closed (Y in step S9), there is a risk of being pinched, so step S13 is performed. Move to the processing of.

When the process proceeds to step S11, it is determined in step S11 whether the slide door 3 is completely closed. If the slide door 3 is still closed (N in step S11), the process of step S9 is executed again. On the other hand, when the slide door 3 is completely closed (Y in step S11), a series of processing is completed.

The processing from step S9 to step S13
In step S13, the operation is switched so that the slide door 3 is fully opened in order to avoid the possibility of pinching (the operation of the slide door 3 may be stopped). Then, the process of step S1 is executed again.

As described above with reference to FIGS. 1 and 2, the communication of various control signals and the detection of the presence or absence of an object between the vehicle body 2 and the slide door 3 are transmitted through the optical space. Optical wireless control devices 5 and 6 are provided, respectively, and the operation of the slide door 3 is regulated based on the detection of the presence or absence of an object by the optical wireless control devices 5 and 6. It is possible to add a device for preventing the opening / closing body from being caught at low cost.
In addition, safety can be improved.

Next, a more detailed example will be described with reference to FIG. FIG. 3 is a block diagram showing a detailed configuration of FIG.

In FIG. 3, a primary coil unit 21, a vehicle body control unit 22, a warning lamp 23 and the like are provided on the vehicle body 2 side of the automobile 1 in addition to the optical wireless control device 5. . On the slide door 3 side, in addition to the optical wireless control device 6, the automatic slide door motor 7, the power window motor 8, and the easy closure motor 9, a secondary coil unit 24, a slide A door built-in battery 25, a door-side control unit 26, and the like are provided.

In addition to the above, the vehicle body 2 has a vehicle body-side battery 27 as a power supply, an ignition switch (IGN SW) 28, switches 29,
A courtesy switch (not shown) is provided.

The vehicle-body-side battery 27 is connected to the vehicle-body-side control unit 22 so that power can be supplied to the vehicle-body-side control unit 22. The ignition switch 28
Body body side battery 27 and body body side control unit 2
2 is provided in the middle of a power supply line that electrically connects the power supply 2 to the main body 2 so that power supply to the vehicle body main body side control unit 22 can be restricted by operating a key (not shown). The switches 29 include various switches such as a centralized door lock switch and a power window switch.

The vehicle body control unit 22 determines the open / closed state of the slide door 3 based on the operating state of the courtesy switch (not shown) and determines the primary coil unit 21.
Is controlled.

The primary coil unit 21 includes a primary power supply coil 30, a temperature sensor 31, and a primary coil oscillation drive control device 32. The primary-side power feeding coil 30 has a known configuration, and its surface is coated with a synthetic resin so as to exert an effect on water (such as falling of water droplets from the outside). . Further, the proximity fitting surface of the primary-side feeding coil 30 is exposed from the opening frame portion 4 and is formed so that a secondary-side feeding coil 33 described later can face and approach. .

The temperature sensor 31 uses, for example, a thermistor as a sensor, and is provided near the above-mentioned close fitting surface. Further, the temperature sensor 31 is connected to the primary coil oscillation drive control device 32, and detects the temperature of the close fitting surface or the vicinity thereof.

The primary coil oscillation drive control device 32 is configured to control the oscillation drive of the primary power supply coil 30. In other words, it has a function as an inverter and a function to switch it, and is configured to be able to control the excitation of the primary-side feeding coil 30. The primary coil oscillation drive control device 32 includes a microprocessor or the like (not shown), and determines whether an abnormality has occurred in the primary-side feeding coil 30 based on the temperature detected by the temperature sensor 31 at appropriate time intervals. And whether or not there is a possibility of occurrence of an abnormality), and sends the result of the determination to the vehicle body control unit 22. Then, depending on the content of the abnormal state, the excitation of the primary side feeding coil 30 during excitation is stopped.

The vehicle-body-side control unit 22 controls, for example, various devices provided in the vehicle body 2, and is constituted by a microprocessor (not shown) and its peripheral circuits. In addition, the optical wireless control device 5 and the warning lamp 23
Is connected.

The microprocessor has a ROM, a CPU, an EEPROM, a RAM, an input / output port, and the like (not shown). The ROM is a read-only memory, and stores programs, fixed data, and the like. Further, the CPU is a central processing unit,
It operates according to a control program stored in the ROM in advance. The EEPROM is an electrically erasable / rewritable read-only memory, and stores various set value information and the like. The RAM is a readable and writable memory, and has a data area for storing various data used in the course of the processing of the CPU and a work area used for the processing.

The warning lamp 23 is provided, for example, together with various warning lamps provided in a meter unit in front of the driver's seat. The warning lamp 23 is turned on when there is an abnormality in the primary-side feeding coil 30 (or when there is a possibility that an abnormality may occur). The warning lamp 23 is also turned on when the optical wireless control devices 5 and 6 detect that there is an object between the vehicle body 2 and the slide door 3. Note that the warning lamp 23 is configured to turn on in this embodiment to alert the driver or the like, but may emit a sound (alarm).

The secondary-side coil unit 24 includes a secondary-side feeding coil 33 and a rectifying / charging function circuit 34. The secondary-side feeding coil 33 has a known configuration, and its surface is coated with a synthetic resin so as to have an effect on water (such as dropping of water droplets from the outside). In addition, the proximity fitting surface of the secondary power supply coil 33 is exposed from the side of the slide door 3 so that the proximity fitting surface of the primary power supply coil 30 can face and approach. It is arranged and formed.

The rectifying and charging function circuit 34 rectifies the induced electromotive force generated in the secondary-side feeding coil 33, and similarly applies the induced electromotive force generated in the secondary-side feeding coil 33 to the battery 25 for incorporating a slide door. And a charging circuit for charging.

The slide door built-in battery 25
Is a power supply having a known configuration, to which the door-side control unit 26 is connected, so that power can always be supplied to the door-side control unit 26 (depending on the capacity, The battery 25 for incorporating the sliding door does not need a large-capacity battery such as the body-side battery 27, and the motor 7 for the automatic sliding door, the motor 8 for the power window, and the A compact one having a capacity enough to drive the closure motor 9 is used, and the slide door built-in battery 25 is exchangeably attached to the slide door 3.

The door-side control unit 26 controls various loads such as the motor 7 for the automatic sliding door, the motor 8 for the power window, and the motor 9 for the easy closure provided on the sliding door 3, and the optical wireless control device 6 and the like. The drive control is performed by a microprocessor (not shown) and its peripheral circuits. The door-side control unit 26 is provided with a battery 2 for incorporating a sliding door.
5 is monitored.
Although not shown, the door-side control unit 26 includes a rectifying charging function circuit 34 and a battery 2 for incorporating a sliding door.
5 has a function of switching the power supply line between the power supply lines 5 and 5.

Door switches 35 are connected to the door-side control unit 26. The door switches 35
Examples include various switches such as a door opening / closing handle switch and a power window switch.

In the above configuration, when the key (not shown) for the vehicle 1 is removed from the ignition switch 28, power is not supplied from the vehicle body side battery 27 to the vehicle body side control unit 22,
The power supply to the slide door 3 is cut off. The door-side control unit 26 is supplied with power from the battery 25 for incorporating a sliding door, but does not operate until a control signal from the vehicle-body-side control unit 22 is received via the optical wireless control devices 5 and 6. It is in such a state.

When the key (not shown) is inserted into the ignition switch 28 and the key is operated, electric power is supplied to the vehicle body control unit 22 from the vehicle body battery 27. Body control unit 22
Is driven by receiving supply of power from the vehicle body side battery 27, transmits a control signal to the door side control unit 26 via the optical wireless control devices 5 and 6, and puts the door side control unit 26 into a standby state. . Further, the vehicle body control unit 22 is provided with an ON / OF of a courtesy switch (not shown).
The F state is confirmed, and it is determined whether or not the slide door 3 is closed. When the slide door 3 is closed, the primary coil oscillation drive control device 32 is driven.

When the primary coil oscillation drive control device 32 is driven by the vehicle body control unit 22, the primary power supply coil 30 is excited by the primary coil oscillation drive control device 32. Then, when the primary side power supply coil 30 is excited, the magnetic flux generated thereby penetrates the secondary side power supply coil 33 close to the primary side power supply coil 30 due to the closed state of the slide door 3, and the secondary side power supply coil Reference numeral 33 indicates that an induced electromotive force is generated by the mutual induction action. And
The induced electromotive force generated in the secondary side feeding coil 33 is supplied to the sliding door built-in battery 2 through the rectification charging function circuit 34.
5 is charged. When the primary coil oscillation drive control device 32 is driven by the vehicle body control unit 22,
The primary coil oscillation drive control device 32 detects the temperature of the near-fitting surface of the primary-side feeding coil 30 or the temperature near the primary-side feeding coil 30 by the connected temperature sensor 31 and monitors whether the primary-side feeding coil 30 is abnormal.

When the slide door 3 is changed from the closed state to the open state, the vehicle body detection unit 14 of the optical wireless control device 5 and the door side detection unit 17 of the optical wireless control device 6 move between the vehicle body 2 and the slide door 3. The presence or absence of an object such as a person 11 (see FIG. 1) is detected by optical space transmission. Then, a person 11 (see FIG. 1) is provided between the vehicle body 2 and the slide door 3.
When the presence of such an object is detected, the operation of the slide door 3 is regulated as described above.

In addition, it goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

[0050]

As described above, according to the first aspect of the present invention, communication of a control signal between the fixed member and the opening and closing body and detection of the presence or absence of an object are performed in the optical space. Each of the optical wireless control devices that perform transmission is provided, and the operation of the opening / closing body is regulated based on the detection of the presence or absence of an object by the optical wireless control device. A device for preventing the opening / closing body from being pinched can be provided. In addition, safety can be improved.

[Brief description of the drawings]

FIG. 1 shows an embodiment in which an anti-jamming device for an opening / closing body according to the present invention is applied to an automobile having a sliding door, (a) is a schematic block diagram in a state where the sliding door is closed, and (b) is a slide. It is a schematic block diagram in the state where the door was opened.

FIG. 2 is a flowchart for explaining that pinching is prevented;

FIG. 3 is a block diagram showing a detailed configuration of FIG. 1;

[Explanation of symbols]

 Reference Signs List 2 body body (fixing member) 3 slide door (opening / closing body) 5, 6 optical wireless control device 7 motor for automatic sliding door 8 motor for power window 9 motor for easy closure 11 person (object) 12 body body side control unit 13 body Body side transceiver 14 Body body side detection unit 15 Door side control unit 16 Door side transceiver 17 Door side detection unit

Claims (1)

[Claims] 1. An apparatus for preventing an object from being pinched between a fixing member and an opening / closing body that automatically opens and closes by an electric operation with respect to the fixing member, wherein the fixing member and the opening / closing body include: An optical wireless control device that performs communication of a control signal therebetween and detection of the presence or absence of the object by optical space transmission is provided, and the opening and closing of the opening and closing body is performed based on the detection of the presence or absence of the object in the optical wireless control device. An opening / closing body anti-jamming device characterized by being configured to regulate operation.