JP2003013666A - Automatic opening and shutting device of vehicle electric opening and shutting body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic opening and shutting device of a vehicle electric opening and shutting body making no malfunction of an insertion preventive mechanism even if the air is introduced in an air-tight state. SOLUTION: When the air is introduced in an air-tight state, since threshold value for insertion decision in the insertion preventive mechanism 14 is so controlled that it gets dull, the malfunction of the insertion preventive mechanism 14 can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic opening / closing device for a vehicle electric opening / closing body having a trapping prevention mechanism.

[0002]

2. Description of the Related Art A slide door (electric opening / closing body) is slidably attached to a door opening provided on a side surface of a vehicle body so that the slide door can be automatically opened / closed by an electric drive source such as a motor. There is known an automatic opening / closing device for an electric opening / closing body for a vehicle configured to do so (for example, Japanese Laid-Open Patent Publication No. HEI-1
0-212867).

In this type of automatic opening / closing device, when the sliding door moving in the closing direction catches a foreign object, the closing operation of the sliding door is stopped or the opening operation is reversed to prevent the sliding door from being damaged. An entrapment prevention mechanism is provided to prevent this. This trapping prevention mechanism detects the operating resistance value (difficulty to close) in the closing direction of the sliding door with a sensor, and the detected operating resistance value increases rapidly and reaches a predetermined threshold value set for trapping determination. It is designed to work when you do. The operating resistance value in the closing direction of the sliding door is the increase value of the electric current / voltage of the electric drive source (it sharply rises when a foreign object is caught) and the decreasing value of the closing operation speed of the sliding door (the sharp reduction is made when a foreign object is caught). Determine from.

[0004]

However, in such a conventional trapping prevention mechanism, when the operating resistance value in the closing direction of the slide door reaches the threshold value for trapping determination, the slide door is When it is determined that a foreign object is trapped, the closing operation of the sliding door is stopped or reversed to the opening operation to prevent the sliding door from being damaged, but depending on the conditions inside the vehicle, the foreign object is not caught. However, a situation similar to the case of being caught occurs, and the catching prevention mechanism may malfunction.

That is, a state in which all the opening / closing bodies (side doors, back doors, etc.) other than the sliding doors are closed to make the interior of the vehicle substantially sealed is referred to as "air tight". When outside air is introduced into the vehicle, the pressure inside the vehicle suddenly increases immediately before the sliding door is closed, and the difficulty of closing the sliding door (operating resistance value) increases, causing the same situation as when a foreign object is caught. May malfunction. When such a situation occurs, it is inconvenient because the slide door cannot be closed unless the introduction of outside air by air conditioning is stopped or an opening / closing body is opened to open the vehicle interior.

The present invention has been made by paying attention to such a conventional technique, and provides an automatic opening / closing device for a vehicle electric opening / closing body in which the trapping prevention mechanism does not malfunction even when outside air is introduced in an airtight condition. To do.

[0007]

The invention according to claim 1 is
An electric opening / closing body that is opened / closed by an opening / closing mechanism provided on the vehicle body, an electric drive source that transmits a driving force for opening / closing the electric opening / closing body to the opening / closing movement mechanism, and an operating resistance in the closing direction of the electric opening / closing body. A pinch prevention mechanism that stops or reverses the closing operation of the electric opening / closing body when the value reaches the trapping determination threshold, and detects the airtight situation in which all the opening / closing bodies other than the electric opening / closing body are closed. An airtight situation detection sensor and an air conditioning sensor for detecting the outside air introduction state of the air conditioner, wherein the airtight situation detection sensor detects the air tight situation, and when the air conditioning sensor detects the outside air introduction state, in the trapping prevention mechanism. The threshold value for pinch determination is blunted.

According to the first aspect of the present invention, when the outside air is introduced in the airtight condition, the trapping determination mechanism controls the trapping determination threshold value to be blunted. It is possible to prevent the operation, and it is possible to solve the problem that the electric opening / closing body does not close on the way.

According to a second aspect of the present invention, there is provided a slide door in which the electric opening / closing body opens and closes a door opening formed on the side surface of the vehicle body.

According to the second aspect of the invention, since the electric opening / closing body is a slide door having a relatively large size, the pinch prevention mechanism is apt to malfunction, and the effect of applying the present invention is great.

According to the third aspect of the present invention, the threshold value in the range just before the sliding door is fully closed is blunted.

According to the third aspect of the present invention, since the threshold value only in the immediately preceding full closing range where the jamming prevention mechanism is apt to malfunction is blunted, the sliding door is operated at the normal threshold value in the portion other than the immediately preceding range. The trapping prevention mechanism can be reliably operated against catching of the bag and interference with a large baggage.

In a fourth aspect of the present invention, when the slide door is provided with a closure mechanism for tightening from a substantially fully closed half latch to a completely fully closed latch, the sliding door is in a half latched state. The threshold of only the range is blunted.

According to the fourth aspect of the present invention, when the slide door is provided with a closure mechanism for tightening from the substantially fully closed half latch to the completely fully closed latch, the sliding door is in the half latched state. Since a malfunction occurs in the range immediately before, the threshold value is blunted only in that range.

According to a fifth aspect of the present invention, at least one of an increase value of the current / voltage of the electric drive source and a decrease value of the closing operation speed of the slide door is detected as the operation resistance value in the closing operation direction of the slide door. Then, the threshold value for entrapment determination is set.

According to the fifth aspect of the present invention, an easily detected current / voltage increase value of the electric drive source and a slide door closing operation speed decrease value are used as the "operation resistance value". Therefore, it is easy to set and control the threshold value.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to FIGS.

FIG. 1 is an external perspective view showing an example of a vehicle, such as an automobile, to which the automatic opening / closing device according to the present invention is applied. A large door opening 1 is formed on the side of the vehicle body,
There, a slide door 2 as an "electric opening / closing body" for opening and closing the door opening 1 is provided so as to be slidable back and forth. A front side door 3 is provided in front of the slide door 2, and a back door (not shown) is provided in the rear portion of the vehicle body. Further, the side window panel 4 behind the door opening 1 can be slid and opened.

The front side door 3, the side window panel 4, the back door (not shown) and the like are "other opening and closing bodies", and by fully closing them,
Airtight situation occurs. Front side door 3, side window panel 4, back door (not shown),
Each of the sensors is provided with a sensor for detecting opening / closing, and an airtight condition detecting sensor 5 (see FIG. 2) for detecting whether or not all of them are in a closed state is configured.

The slide door 2 itself is slidably engaged with and guided by a guide track 6 fixed near the rear waist portion of the vehicle body, and from the fully closed position where the door opening 1 is sealed, the door opening 1 is opened. It is mounted so that it can be moved to the fully open position where it is fully opened. An endless loop-shaped cable (not shown) that is driven by a motor (electric drive source) 7 is arranged in the guide track 6, and a part of the cable is
The slide door 2 is connected.

An electromagnetic clutch mechanism 8 is provided between the motor 7 and the cable. By disconnecting or connecting the cable and the slide door 2 with this clutch mechanism 8, the slide door 2 is automatically operated. Switching between open / close and manual open / close.

In addition to the motor 7 for automatic opening and closing, the slide door 2 is provided with a closure mechanism 9 for tightening the slide door 2 from a substantially fully closed half latch to a completely fully closed latch. Has been. This closure mechanism 9 is also electrically driven by another motor. In this embodiment, the closure mechanism 9, the guide track 6, the cable, and the like constitute an “opening and closing movement mechanism”.

The motor 7 and the clutch mechanism 8 are connected to a slide door controller 10, and the slide door controller 10 controls the rotation direction of the motor 7 and the switching of the clutch mechanism 8. The slide door control device 10 includes a motor current sensor 11 and a door speed sensor 1
2. The door position sensor 13 is connected. The motor current sensor 11, the door speed sensor 12, the door position sensor 13, and the slide door control device 10 constitute a pinch prevention mechanism 14.

That is, when closing the slide door 2,
When a foreign object is caught between the slide door 2 and the front end of the door opening 1, the current of the motor 7 suddenly rises or the closing speed of the slide door 2 sharply decreases.
By detecting the current flowing through the motor 7 and the speed of the sliding door 2 in the closing operation direction with the door speed sensor 1 and the door speed sensor 12, the sandwiched state of the sliding door 2 can be detected. The voltage may be detected instead of the current of the motor 7.

Specifically, based on the current increase value of the motor 7 and the decrease value of the closing operation speed of the slide door 2, each of which represents the operation resistance value in the closing operation direction of the slide door 2.
A threshold value for entrapment determination is set, and when at least one of the operation resistance values related to current or speed reaches the entrapment determination threshold value, it is determined that a foreign object is trapped in the slide door 2, It is structured to reverse the door 2 to the opening operation (it is also possible to stop it without inverting it).

An air conditioning sensor 16 of an air conditioning device 15 is connected to the slide door control device 10 in addition to the airtight condition detecting sensor 5 described above. This air conditioning sensor 16
Detects that the air conditioner 15 is in the outside air introduction state and outputs a signal to the slide door control device 10. The airtight condition detection sensor 5 detects the airtight condition in which all of the front side doors 3, the side window panel 4, and the back door (not shown) other than the slide door 2 are closed, and the air conditioning sensor 16 causes the air conditioner to operate. When it is detected that 15 is in the outside air introduction state into the vehicle compartment, the portion in the range F immediately before the half-latch which is in the substantially fully closed state is blunted in the threshold value for the trapping determination.

The operation of the trapping prevention mechanism 14 will be described with reference to FIG.
~ It demonstrates based on FIG.

3 and 4 (enlargement of the immediately preceding range F) are graphs showing the threshold value S1 relating to the motor current, and the thin line represents the actual current value A of the motor 7. In the range F immediately before the sliding door 2 is closed, if a foreign object is trapped or the operating resistance value of the sliding door 2 increases, the current value A'partly sharply increases as shown by the dotted line.

The thick line above the current value A is the threshold value (for current) S1 for entrapment determination. What is indicated by a dotted line in the immediately preceding range F is a threshold value S1 ′ (conventional) in the airtight state and not in the outside air introduction state.
If the current value is 1, that is, a higher current value, the entrapment determination is not easily performed.

Conventionally, the threshold value S1 in the immediately preceding range F was not controlled to be blunted.
1 ′ and the current value A ′ that has rapidly increased in the airtight state and in the outside air introduction state intersect at a point P in the immediately preceding range F, and at this point P, the trapping prevention mechanism 14 malfunctions if a foreign object is trapped. There was a problem that the slide door 2 was reversed from the middle. That is, conventionally, when air is introduced into the vehicle interior by the air conditioner 15 in the airtight condition, the vehicle interior pressure rapidly increases in the range F immediately before the sliding door 2 is closed, and the sliding door 2 is difficult to close (operation resistance). Value) increases and a situation similar to the case where a foreign object is caught occurs, so that the trapping prevention mechanism 14 malfunctions. In particular, since the sliding door 2 is of a relatively large size, it has a large resistance when it is closed, and the pinch prevention mechanism 14 is likely to malfunction.

However, in this embodiment, the threshold value S1 in the immediately preceding range F is blunted in the airtight state and when the outside air is introduced, so that the threshold value S1 and the suddenly increased current value A'do not intersect and slide. The door 2 can be closed securely. Incidentally, when the foreign matter is actually caught in the airtight state and the outside air is introduced, the current value A ′ increases remarkably more rapidly than the case shown in the figure due to the synergistic effect. However, the trapping prevention mechanism 14 can be reliably operated.

FIG. 5 is a graph showing the threshold value S2 for the speed in the closing operation direction of the slide door 2, and the thin line is the actual speed B of the slide door 2. In the range F immediately before the sliding door 2 is closed, if a foreign object is trapped or the operating resistance value of the sliding door 2 increases, the speed B'partly sharply decreases as shown by the dotted line.

The thick line below the speed B is a threshold value (related to speed) S2 for entrapment determination. What is indicated by a dotted line in the immediately preceding range F is a threshold value S2 ′ (conventional) in the airtight state and not in the outside air introduction state, and only in the immediately preceding range F, the threshold value S2 which is blunted with respect to this threshold value S2 ′.
It is controlled so that the jamming determination is not easily performed unless the speed is 2, that is, the speed is lower. Therefore, as in the case of the current, in the case of speed as well, the entrapment prevention mechanism 14 malfunctioned at point P in the past, but in this embodiment, the blunted threshold value S2 and the air-tight situation and the introduction of outside air are introduced. In this state, the speed B'decreased suddenly does not intersect, and no malfunction occurs.

In this embodiment, the threshold value S1 only in the immediately preceding range F, in which the entrapment prevention mechanism 14 is apt to malfunction,
Since S2 is blunted, in the portion other than the immediately preceding range F, the trapping prevention mechanism 14 should be reliably operated by the normal threshold values S1 and S2 against catching of the slide door 2 and interference with a large load. You can

In this embodiment, the slide door 2 is taken as an example of the "electric opening / closing body", but the invention is not limited to this.

[0036]

According to the present invention, when the outside air is introduced in the airtight condition, the threshold value for determining the trapping in the trapping prevention mechanism is controlled so as to be blunted, so that the trapping prevention mechanism is prevented from malfunctioning. Can be prevented,
It is possible to solve the problem that the electric opening / closing body does not close on the way.

[Brief description of drawings]

FIG. 1 is an external perspective view showing an example of an automobile to which an automatic opening / closing device according to an embodiment of the present invention is applied.

FIG. 2 is a block diagram of the slide door control device of FIG.

3 is a graph showing a relationship between a current value and a threshold value of the motor shown in FIG.

FIG. 4 is a graph showing an enlarged relationship between a current value and a threshold value in the immediately preceding range of FIG.

5 is a graph showing the relationship between the speed of the sliding door of FIG. 2 and a threshold value.

[Explanation of symbols]

2 Sliding door (electric opening / closing body) 5 Airtight situation detection sensor 7 Motor (electric drive source) 11 Motor current sensor 12 door speed sensor 14 Entrapment prevention mechanism 15 Air conditioner 16 Air conditioning sensor F last range A Motor current value B Sliding door speed Threshold for S1 current value S2 threshold for speed

Claims (5)

[Claims] 1. An electric opening / closing body that is opened and closed by an opening and closing movement mechanism provided on a vehicle body, an electric drive source that transmits a driving force for opening and closing the electric opening and closing body to the opening and closing movement mechanism, and the electric opening and closing. A pinching prevention mechanism that stops the closing operation of the electric opening / closing body or reverses it to the opening operation when the operating resistance value in the closing operation direction of the body reaches the threshold value for pinching determination, and all opening / closing operations other than the electric opening / closing body An airtight situation detection sensor that detects an airtight situation in which the body is closed, and an air conditioning sensor that detects an outside air introduction state of the air conditioner, the airtight situation detection sensor detects an airtight situation, and the air conditioning sensor indicates an outside air introduction state. An automatic opening / closing device for a vehicle electric opening / closing body, characterized in that, when detected, a threshold for jamming determination in a jamming prevention mechanism is blunted. 2. The automatic opening / closing device for an electric opening / closing body for a vehicle according to claim 1, wherein the electric opening / closing body is a slide door for opening and closing a door opening formed on a side surface of the vehicle body. Automatic opening / closing device for electric opening / closing body. 3. The automatic opening / closing device for an electric vehicle opening / closing body according to claim 2, wherein the threshold value of only the range immediately before the sliding door is fully closed is blunted. Automatic switchgear. 4. The automatic opening / closing device for an electric vehicle opening / closing body according to claim 3, wherein the sliding door includes a closure mechanism for tightening from a substantially fully closed half latch to a completely fully closed latch. In this case, an automatic opening / closing device for a vehicle electric opening / closing body is characterized in that a threshold value in a range just before a sliding door is in a half-latch state is made blunt. 5. The automatic opening / closing device for a vehicle electric opening / closing body according to claim 2, wherein the operation resistance value in the closing operation direction of the slide door is:
An automatic electric opening / closing body for a vehicle, characterized by detecting at least one of a rising value of a current / voltage of an electric drive source and a falling value of a closing operation speed of a sliding door to set a threshold value for pinching determination. Switchgear.