JP2005090100A - Closing driving device of opening/closing body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely move a latch to a full latch position. <P>SOLUTION: A control means 8 includes a first timer 11a for counting predetermined time Ta in response to the fact that a latch area detecting switch 20 detects a latch area of the latch, and a second timer 11b for counting predetermined time Tb after the time Ta passes; and controls driving of a closure motor 17 in the closing direction after the time Ta passes; and controls driving of the closure motor 17 in the closing direction until a pole switch 18 detects an engaging position of a pole again, when the pole switch 18 detects the engaging position of the pole within the time Tb. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a closing drive device for an opening / closing body that moves an opening / closing body such as a slide door, swing door, back door, or trunk lid of an automobile from a half door position to a fully closed position.

In the sliding door (opening / closing body) closing drive device (closure device), an open position for releasing from the striker fixed to the vehicle body side, a half latch position for barely engaging with the striker, and a full latch for completely engaging with the striker A latch that is movable to a position, a pawl that engages the latch at the half latch position and the full latch position of the latch and prevents the latch from rotating in the opening direction, and an engagement position at which the pawl is engaged with the latch. Pole switch that can be detected, latch area detection switch that can detect the latch area of the latch (the range between the position just before the half latch position and the full latch position), and a full latch area detection switch that can detect the full latch position of the latch And a closure motor capable of moving the latch from the half latch position to the full latch position, When the ride door is closed, the latch engages with the striker and rotates to the half latch position. When the pole switch detects that the pole has moved to the engagement position, the closure motor is rotated in the closing direction to latch. Is moved from the half latch position to the full latch position to move the slide door from the half door position to the fully closed position (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 9-291737

  However, in the prior art, when the sliding door is closed, when the automobile stops on the slope and the vehicle body tilts in the opening direction of the sliding door, or when the operator closes the sliding door vigorously, Due to the fact that the closing speed of the switch is higher than expected, there may occur a situation in which the detection signal of the pole switch cannot be recognized as the start signal depending on the processing speed of the control device. If this happens, the closure motor cannot be driven normally, and there is a possibility that the latch cannot be moved to the full latch position. Therefore, in order to prevent such a problem from occurring, it is necessary to use a control device with high processing capability and a high-precision detection switch.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and it is possible to reliably move the latch to the full latch position, and to provide a closing drive device for an opening / closing body that is excellent in cost. It is intended to provide.

According to the present invention, the above problem is solved as follows.
(1) Detach from striker, open position corresponding to opening position of opening and closing body, and barely engaged with striker, half latch position corresponding to half door position of opening and closing body, and fully engaged with striker And a latch movable to a full latch position corresponding to a fully closed position of the opening / closing body, and engaged with the latch at a half latch position and a full latch position of the latch to rotate the latch in the opening direction. A pole that can be detected, a pole switch that can detect that the pole has moved to the engagement position engaged with the latch, and a latch area between the position immediately before the half latch position of the latch and the full latch position can be detected. A full latch area detection switch capable of detecting a full latch area between a position immediately before the full latch position of the latch and the full latch position. A closing drive device for an opening / closing body having a switch and a closure motor that can be driven in a closing direction to move the latch from a half latch position or a vicinity thereof to a full latch position, wherein the latch area detection switch detects a latch area of the latch A first timer for measuring a predetermined time (Ta) in response to detection, and a second timer for measuring a predetermined time (Tb) after the time (Ta) has elapsed. (Ta) After the elapse of time, the closure motor is driven and controlled in a closing direction, and the pole switch detects the engagement position of the pole within the time (Tb). Control means is provided so that the drive control can be performed in the closing direction until the engagement position is detected again.

(2) Detach from the striker, engage with the striker with an open position corresponding to the open position of the opening / closing body, and fully engage with the striker with a half latch position corresponding to the half door position of the opening / closing body And a latch movable to a full latch position corresponding to a fully closed position of the opening / closing body, and engaged with the latch at a half latch position and a full latch position of the latch to rotate the latch in the opening direction. A pole that can be detected, a pole switch that can detect that the pole has moved to the engagement position engaged with the latch, and a latch area between the position immediately before the half latch position of the latch and the full latch position can be detected. Full latch area detection that can detect a full latch area between the position immediately before the full latch position of the latch and the full latch position A closing drive device for an opening / closing body having a switch and a closure motor that can be driven in a closing direction to move the latch from a half latch position or a vicinity thereof to a full latch position, wherein the latch area detection switch detects a latch area of the latch A first timer for measuring a predetermined time (Ta) in response to detection, and a second timer for measuring a predetermined time (Tb) after the time (Ta) has elapsed. (Ta) After the elapse of time, the closure motor is controlled to be driven in the closing direction, and when the full latch region detection switch detects the full latch region of the latch within the time (Tb), the pole motor is controlled by the pole switch. Control means is provided so that the closure can be controlled until the engagement position of the pole is detected.

(3) Detach from the striker, engage with the striker with an open position corresponding to the open position of the opening / closing body, and engage with the striker completely with the half latch position corresponding to the half door position of the opening / closing body. And a latch movable to a full latch position corresponding to a fully closed position of the opening / closing body, and engaged with the latch at a half latch position and a full latch position of the latch to rotate the latch in the opening direction. A pole that can be detected, a pole switch that can detect that the pole has moved to the engagement position engaged with the latch, and a latch area between the position immediately before the half latch position of the latch and the full latch position can be detected. Full latch area detection that can detect a full latch area between the position immediately before the full latch position of the latch and the full latch position A closing drive device for an opening / closing body having a switch and a closure motor that can be driven in a closing direction to move the latch from a half latch position or a vicinity thereof to a full latch position, wherein the latch area detection switch detects a latch area of the latch A first timer for measuring a predetermined time (Ta) in response to detection, and a second timer for measuring a predetermined time (Tb) after the time (Ta) has elapsed. (Ta) After the elapse of time, the closure motor is driven and controlled in the closing direction, and when the pole switch cannot detect the engagement position of the pole within the time (Ta) or the time (Tb), the closure motor is controlled. When the pole switch detects the engagement position of the pole during the reversal control, the closure motor is connected to the pole switch. Control means is provided so that the drive control can be performed again in the closing direction until the H detects the engagement position of the pole.

(4) Detach from striker, open position corresponding to opening position of opening / closing body, and barely engaged with striker, half latch position corresponding to half door position of opening / closing body, and fully engaged with striker And a latch movable to a full latch position corresponding to a fully closed position of the opening / closing body, and engaged with the latch at a half latch position and a full latch position of the latch to rotate the latch in the opening direction. A pole that can be detected, a pole switch that can detect that the pole has moved to the engagement position engaged with the latch, and a latch area between the position immediately before the half latch position of the latch and the full latch position can be detected. Full latch area detection that can detect a full latch area between the position immediately before the full latch position of the latch and the full latch position Switch, a closure motor that can be driven in the closing direction to move the latch from the half latch position or its vicinity to the full latch position, and an opening and closing motor that can move the opening and closing body from the open position to the half door position or vice versa A first timer for measuring a predetermined time (Ta) in response to the latch region detection switch detecting the latch region of the latch, and the time (Ta) A second timer for measuring a predetermined time (Tb) after the elapse of time, and after the time (Ta) elapses, the closure motor is driven and controlled in the closing direction, and the time (Ta) or the time (Tb) is controlled. If the pole switch cannot detect the engagement position of the pole, the closure motor is reversed and the opening / closing motor is driven in the opening direction. When the pole switch detects the engagement position of the pole, a control means is provided so that the closure motor can be driven again in the closing direction until the pole switch detects the engagement position of the pole. Provide.

(5) In any one of the above items (1) to (4), the control means detects the engagement position of the pole by the pole switch, the latch area detection switch detects the latch area of the latch, and further the full latch area When the detection switch detects the full latch area of the latch, the closure motor is controlled to stop.

According to the present invention, the following effects can be obtained.
(1) According to the first aspect of the invention, even when the latch is stopped at a position before the half latch position when the opening / closing body is closed, the latch is moved to the full latch position after confirming the half latch position of the latch. It can be moved reliably. In addition, since it is not necessary to use a control device with high processing capacity and a high-precision detection switch, cost can be reduced.

(2) According to the invention described in claim 2, it is confirmed that the latch is in the half latch region even when the pole switch cannot detect the engagement position of the pole due to the sudden closing of the opening / closing body. Thus, the latch can be reliably moved to the full latch position. In addition, since it is not necessary to use a control device with high processing capacity and a high-precision detection switch, cost can be reduced.

(3) According to the invention described in claim 3, the pole switch cannot detect the engagement position of the pole due to the sudden closing of the opening / closing body, and the latch is moved to the full latch position within the time (Tb). Even if this is not possible, after reversing the closure motor and confirming the half-latch area of the latch during this reversal control, drive the closure motor again in the closing direction to ensure that the latch reaches the full latch position. Can be moved to. In addition, since it is not necessary to use a control device with high processing capacity and a high-precision detection switch, cost can be reduced.

(4) According to the invention described in claim 4, the pole switch cannot detect the engagement position of the pole due to the sudden closing of the opening / closing body, and the latch is moved to the full latch position within the time (Tb). Even if this is not possible, the latch motor is moved to the half-latch position by reversing the closure motor and then driving the open / close motor in the opening direction to confirm the half-latch position of the latch. Then, the latch can be reliably moved to the full latch position by controlling the closure motor again in the closing direction. In addition, since it is not necessary to use a control device with high processing capacity and a high-precision detection switch, cost can be reduced.

(5) According to the invention described in claim 5, when the latch reaches the full latch position, the closure motor can be surely stopped.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
FIG. 1 shows an automobile (1) to which an embodiment of the present invention is applied. The automobile (1) has a sliding door (hereinafter referred to as a door) (2) that forms an opening / closing body for a passenger to get on and off, and the door (2) is opened and closed on the outer surface of the door (2). A door handle (3) that is sometimes operated is provided. The door (2) can be opened and closed in the front-rear direction by being guided by a front-rear slide rail (not shown) provided above and below the door opening in the vehicle body and a front-rear slide rail (5) provided on the rear side surface of the vehicle body. And an opening / closing drive device (4) provided on the vehicle body, which can be slid in the region between the fully open position (open position) and the half door position, and is provided with a closure provided on the door (2). By driving the door latch device (7) provided on the door (2) with the drive device (6), the door (2) can be moved from the half door position to the fully closed position. The opening / closing motor (4a) capable of rotating in the forward and reverse directions of the opening / closing drive device (4) and the closure motor (17) of the closure drive device (6) are controlled by the control means (8) mounted on the vehicle body. The open / close drive device (4) and the closure drive device (6) have well-known configurations, and thus detailed description thereof is omitted.

  FIG. 2 shows a connection example of the control means (8). The control means (8) includes an open / close control circuit unit (9) for controlling the open / close drive device (4), a closure control circuit unit (10) for controlling the closure drive device (6), and a closure control circuit unit ( It includes a first timer (11a) and a second timer (11b) that generate the basic timing related to the control of 10). The open / close control circuit unit (9) controls the open / close motor (4a) by PWM control.

  A power source (12) such as a battery mounted on the vehicle body is connected to the control means (8), and electric power necessary for operation is supplied. An operation switch (13) that is operated when the door (2) is opened and closed is connected to the opening / closing control circuit section (9). The operation switch (13) includes a door handle (3) and a remote control switch (illustrated). The ON and OFF states are created in conjunction with operations such as (omitted).

  Inside the door (2), the above-described door latch device (7) capable of holding the door (2) in the fully closed position or the half door position by engaging with a striker (14) provided on the vehicle body side. The above-mentioned closure driving device (6) for forcibly moving the door (2) from the half-door position to the fully closed position is provided.

3-7 is explanatory drawing which shows each state in a door latch apparatus (7).
The door latch device (7) includes a latch (15) and a pole (16). The latch (15) is pivotally attached to a body (not shown) of the door latch device (7) by a shaft (22), and has a half latch engaging portion (15a) and a full latch engaging portion (15b), and a striker (14 3 and the half-latch shown in FIG. 4 corresponding to the half-door position of the door (2), with the open position shown in FIG. 3 corresponding to the open position of the door (2) barely engaged with the striker (14). The position is fully engaged with the striker (14) and is movable to a full latch position shown in FIG. 7 corresponding to the fully closed position of the door (2).

  The pole (16) is pivotally attached to the body by a pivot (23), and when the latch (15) is in the half latch position, the pole (16) is engaged with the half latch engaging portion (15a) of the latch (15), and the latch (15 ) Engages with the full latch engaging portion (15b) of the latch (15) when in the full latch position to prevent the latch (15) from rotating in the opening direction (clockwise in FIGS. 3 to 7), In conjunction with the operation of the door handle (3), the latch (15a) and the full latch engagement portion (15b) are separated from the half latch engagement portion (15a) to freely rotate the latch (15) in the opening direction. .

  In the following description, the state in which the pole (16) is engaged with the half latch engaging portion (15a) or the full latch engaging portion (15b) of the latch (15) (FIG. 4 or FIG. 7) The engagement position of (16) is defined, and the state where the pole (16) rides on the outer periphery of each engagement portion (15a) (15b) (FIGS. 3, 5 and 6) is the separation position of the pole (16). It is defined as Also, the interval between the half latch position and the full latch position of the latch (15) is defined as the half latch area of the latch (15), and the position immediately before the full latch position of the latch (15) (FIG. 6) and the full latch position. Is defined as a full latch area of the latch (15), and a position between the half latch position of the latch (15) (between the open position and the full latch position) and the full latch position is defined as a latch area.

  The closure drive device (6) has a closure motor (17) capable of rotating in the forward and reverse directions, and is connected to a latch (15) via a gear, a link, etc. (not shown) to close the closure motor (17) ( With the rotation in the closing direction), the latch (15) is moved from the half latch position or its vicinity to the full latch position, and the door (2) is forcibly moved from the half door position to the fully closed position. In the present embodiment, the closure driving device (6) and the door latch device (7) are integrally formed.

  (18) is a pole switch capable of detecting that the pole (16) has shifted to the engaged position. The pole switch (18) is connected to the closure control circuit section (10), and the pole (16) can be rotated integrally with the pole (16) by moving from the disengagement position to the engagement position. The turning position of the lever (16a), that is, the engaging position of the pole (16) is detected, and the ON state is switched to the OFF state.

  (19) is a full latch area detection switch capable of detecting the full latch area of the latch (15). The full latch area detection switch (19) is connected to the closure control circuit section (10) and can be rotated together with the latch (15) by moving the latch (15) from the half latch area to the full latch area. The full latch area of the latch (15) is detected through the cam lever (21) and the ON state is switched to the OFF state.

  (20) is a latch area detection switch capable of detecting the latch area of the latch (15). The latch area detection switch (20) is connected to the closure control circuit section (10), and when the latch (15) moves from the open position to the latch area, the latch (15) is connected via the cam lever (21). The latch area is detected and switched from the ON state to the OFF state.

Next, the state shown in FIGS. 3 to 7 will be described in detail.
FIG. 3 shows an open state corresponding to the open position of the door (2) in the disengaged position where the latch (15) is in the open position and the pole (16) rides on the outer peripheral edge of the latch (15). In this open state, the pole switch (18), the full latch area detection switch (19), and the latch area detection switch (20) are all in the ON state.

  FIG. 4 shows a half corresponding to the half door position of the door (2) in which the latch (15) is in the half latch position and the pole (16) is in the engagement position where the latch (15a) is engaged. Indicates the latch state. In this half latch state, the pole switch (18) detects the engagement position of the pole (16) via the detection lever (16a) and switches from the ON state to the OFF state. 20) detects the half latch position of the latch (15) via the cam lever (21) and switches from the ON state to the OFF state. The full latch area detection switch (19) is maintained in the ON state.

  FIG. 5 shows a transient state when the latch (15) is in the half-latch region and the pole (16) is in the disengaged position on the full latch engaging portion (15b). In this transient state, the pole switch (18) switches from the OFF state to the ON state, the full latch region detection switch (19) is maintained in the ON state, and the latch region detection switch (20) is maintained in the OFF state. Has been.

  FIG. 6 shows the door in a position immediately before the full latch position where the latch (15) is slightly rotated counterclockwise from FIG. 5 and in the disengaged position where the pole (16) rides on the full latch engaging portion (15b). (2) shows a transient state corresponding to the way from the half door position to the fully closed position. In this transient state, the pole switch (18) is maintained in the ON state, and the full latch area detection switch (19) detects the full latch area of the latch (15) and switches from the ON state to the OFF state to detect the latch area. The switch (20) is maintained in the OFF state.

  FIG. 7 shows a fully latched state corresponding to the fully closed position of the door (2) in which the latch (15) is in the fully latched position and the pawl (16) is in the engaged position where the latch (15b) is engaged. Show. In this full latch state, the pole switch (18) switches from the ON state to the OFF state again, and the full latch region detection switch (19) and the latch region detection switch (20) are maintained in the OFF state.

  Next, the control of the present embodiment will be described based on the time charts shown in FIGS. The control shown in FIGS. 8 to 12 is based on the operation signal of the operation switch (13), the detection signals of the detection switches (18), (19) and (20), and other input signals. The open / close control circuit section (9) and the closure control circuit section (10) perform the control.

FIG. 8 shows a time chart when the door (2) is closed at a closing speed slower than the set speed, for example, when the automobile (1) is parked on an uphill.
First, when the operation switch (13) is operated and the opening / closing motor (4a) of the opening / closing drive device (4) rotates in the closing direction, the door (2) moves from the open position to the closing direction. Along with this, the latch (15) engages with the striker (14) and rotates from the open position toward the half latch position. Thus, the latch area detection switch (20) detects the latch area of the latch (15) and switches from the ON state to the OFF state, and the latch area detection switch (20) changes to the OFF state according to the switching from the latch area detection switch (20) to the OFF state. One timer (11a) measures time (Ta). At the same time, the open / close control circuit unit (9) performs control to lower the duty ratio of the PWM control.

  In this case, due to the slow closing speed of the door (2), the latch (15) is latched within the time (Ta) due to the seal reaction force provided between the door (2) and the door opening. Cannot move to the half-latch position. Because the latch (15) stops at a position before the half latch position and the pole (16) is in the disengaged position on the half latch engaging portion (16a), the pole switch (18) ) Cannot be switched from ON to OFF. In this case, after the time (Ta) has elapsed, the closure motor (17) is rotated in the closing direction (the closing direction), and the second timer (11b) measures the time (Tb). At the same time, the opening / closing motor (4a) stops rotating.

  By the rotation of the closure motor (17) in the closing direction (closing direction), the latch (15) is rotated from the position before the half latch position toward the full latch position. Within the time (Tb), as shown in FIG. 4, when the latch (15) reaches the half latch position, the pole (16) engages with the half latch engaging portion (15a) at the same time. The pole switch (18) detects the engagement position of the pole (16) and switches from the ON state to the OFF state. The first timer (11b) is reset.

  While the closure motor (17) is being driven within the time (Tb), it is confirmed that the latch (15) is in the half latch position based on the detection of the OFF state of the pole switch (18). When this confirmation is made, the closure motor (17) continues to rotate in the closing direction until the latch (15) reaches the full latch position.

  In response to the rotation of the latch (15), the full latch area detection switch (19) detects the full latch area of the latch (15) and switches from the ON state to the OFF state. (15b) is engaged, and the pole switch (18) detects the engagement position of the pole (16) and switches from the ON state to the OFF state, whereby the full latch position of the latch (15) is detected. Based on this detection, the closure motor (17) stops and then reversely controls to return the closure driving device (6) to the neutral state.

  In other words, the control in FIG. 8 is to control the closure motor (17) in the closing direction after the elapse of time (Ta), and the pole switch (18) is engaged with the pole (16) within the time (Tb). When the alignment position is detected, the closure motor (17) is driven and controlled in the closing direction until the pole switch (18) detects the engagement position of the pole (16) again (corresponding to claim 1).

  By controlling as described above, even when the latch (15) stops at a position before the half latch position when the door (2) is closed, after confirming the half latch position of the latch (15), The latch (15) can be reliably moved to the full latch position.

FIG. 9 shows a time chart for the case where the door (2) is closed at a substantially set speed.
First, the operation switch (13) is operated, and the opening / closing motor (4a) of the opening / closing drive device (4) rotates in the closing direction. As a result, the door (2) moves in the closing direction from the open position, and the latch (15) engages with the striker (14) and moves from the open position to the half latch position. The latch area detection switch (20) detects the latch area of the latch (15) and switches from the ON state to the OFF state, and the first timer (11a) measures the time (Ta) in response to this switching. At the same time, the open / close control circuit unit (9) performs control to lower the duty ratio of the PWM control.

  When the latch (15) moves to the half latch position within the time (Ta) and the pole (16) engages with the half latch engaging portion (15a), the pole switch (18) is engaged with the pole (16). The matching position is detected and the ON state is switched to the OFF state. At the same time, the closure motor (17) continues to rotate in the closing direction until the latch (15) reaches the full latch position, and the rotation of the open / close motor (4a) stops.

  When the latch (15) shifts to the full latch area, the full latch area detection switch (19) detects the full latch area of the latch (15) and switches from the ON state to the OFF state. Subsequently, when the latch (15) reaches the full latch position and the pole (16) engages with the full latch engaging portion (15b), the pole switch (18) detects the engagement position of the pole (16) and turns on. Switch from state to OFF state. As a result, the full latch position of the latch (15) is detected and the closure motor (17) is stopped, and then reverse control is performed to return the closure driving device (6) to the neutral state.

  In FIG. 9, based on the fact that the pole switch (18) detects the engagement position of the pole (16) within the time (Ta), after confirming the half latch position of the latch (15), the closure motor (17 ) Is controlled until the latch (15) moves to the full latch position. Thereby, the latch (15) can be reliably moved to the full latch position.

  In FIG. 10, for example, the car (1) is parked on a downhill, the door (2) is closed at a speed higher than the set speed, and the pole switch (17) cannot detect the engagement position of the pole (16). The time chart about a case is shown.

  First, when the operation switch (13) is operated and the opening / closing motor (4a) of the opening / closing drive device (4) rotates in the closing direction, the door (2) moves from the open position to the closing direction. Along with this, the latch (15) engages with the striker (14) and rotates from the open position toward the half latch position. Thus, the latch area detection switch (20) detects the latch area of the latch (15) and switches from the ON state to the OFF state, and the first timer (11a) measures the time (Ta) accordingly. . At the same time, the open / close control circuit unit (9) performs control to lower the duty ratio of the PWM control.

  In this case, because the closing speed of the door (2) is very fast, the angular speed of the latch (15) also becomes very fast, so the latch (15) is shown in FIG. Transition to a transient state. For this reason, the pole (16) is engaged with the half latch engaging portion (15a) for a moment, and immediately gets on the full latch engaging portion (15b). As a result, since the time of the switching signal from the ON state to the OFF state of the pole switch (18) is instantaneous, the closure control circuit unit (10) recognizes the OFF signal of the pole switch (18) as a start signal. I can't.

  In this case, after the time (Ta) elapses, the closure motor (17) is rotated in the closing direction and the time measurement (Tb) in the second timer (11b) is started. At the same time, the rotation of the opening / closing motor (4a) is stopped.

  The latch (15) rotates toward the full latch position by the rotation of the closure motor (17), and within the time (Tb), the full latch area detection switch (19) detects the full latch area of the latch (15). When the ON state is switched to the OFF state, the closure motor (17) continues to rotate until the latch (15) reaches the half latch position.

  When the latch (15) reaches the full latch position and the pole (16) engages with the full latch engagement part (15b), the pole switch (18) detects the engagement position of the pole (16) and turns off from the ON state. Switch to state. As a result, the full latch position of the latch (15) is detected, and the closure motor (17) stops and then reverses to return the closure driving device (6) to the neutral state.

  In other words, the control in FIG. 10 is to drive the closure motor (17) in the closing direction after the time (Ta) has elapsed, and within the time (Tb), the full latch region detection switch (19) is latched (15). When the full latch region is detected, the closure motor (17) is driven and controlled in the closing direction until the pole switch (18) detects the engagement position of the pole (16) (corresponding to claim 2).

  In the control shown in FIG. 10, when the door (2) is closed, even when the pole switch (18) cannot detect the engagement position of the pole (16) due to the sudden closing of the door (2). The half latch area of the latch (15) can be confirmed, and the latch (15) can be reliably moved to the full latch position.

  Next, FIG. 11 will be described. FIG. 11 shows, for example, the case where the door (2) is closed at a speed higher than the set speed and the pole switch (18) cannot detect the engagement position of the pole (16), and the seal reaction force or other causes. The time chart when the latch (15) cannot be moved to the full latch position within a predetermined time (time (Tb)) is shown.

  When the operation switch (13) is operated and the opening / closing motor (4a) of the opening / closing drive device (4) rotates in the closing direction, the door (2) moves from the open position to the closing direction. Along with this, the latch (15) engages with the striker (14) and rotates from the open position toward the half latch position. Thereby, the latch area detection switch (20) detects the latch area of the latch (15) and switches from the ON state to the OFF state, and the first timer (in accordance with the OFF state of the full latch area detection switch (20)). 11a) starts counting time (Ta). At the same time, the open / close control circuit unit (9) performs control to lower the duty ratio of the PWM control.

  Even in this case, since the angular speed of the latch (15) becomes very fast due to the very fast closing speed of the door (2), the same situation as described in FIG. The closure control circuit unit (10) cannot recognize the OFF signal of the pole switch (18) as a start signal.

  In this case, similarly to the control shown in FIG. 10, after the time (Ta) elapses, the closure motor (17) is rotated in the closing direction and the time measurement of the time (Tb) in the second timer (11b) is started. Let At the same time, the rotation of the opening / closing motor (4a) is stopped.

  As the closure motor (17) rotates, the latch (15) rotates from the half-latch area to the full-latch position.However, due to the seal reaction force or other causes, the latch (15) reaches the full-latch area within the time (Tb). I can't move. In this case, after the time (Tb) elapses, the closure motor (17) is controlled to stop, and subsequently, the closure motor (17) is controlled to be reversed.

  During the reversal of the closure motor (17), the force transmitted to the latch (15) from the closure driving device (6) is removed, so that the door (2) is moved in the half latch area by the seal reaction force. Displacement in the opening direction may cause the latch (15) to be displaced to the half latch position. In this case, during the reversal of the closure motor (17), the pole switch (18) detects the engagement position of the pole (16) and is switched from the ON state to the OFF state. ) Returns to the neutral state, the closure motor (17) is rotated again in the closing direction, and the rotation is continued until the latch (15) reaches the full latch position.

  After the latch (15) rotates with the rotation of the closure motor (17), the full latch area detection switch (19) detects the full latch area of the latch (15) and switches from the ON state to the OFF state. When (18) detects the engagement position of the pole (16) and switches from the ON state to the OFF state, the full latch position of the latch (15) is detected. Based on this detection, the closure motor (17) stops and then reverse-controls to return the closure driving device (6) to the neutral state.

  In other words, the control in FIG. 11 is to drive the closure motor (17) in the closing direction after the time (Ta) elapses, and within the time (Ta) or time (Tb), the pole switch (18) When the engagement position of (16) cannot be detected, the closure motor (17) is reversely controlled, and when the pole switch (18) detects the engagement position of the pole (16) during the reverse control, the closure motor (17 ) Is controlled again in the door closing direction until the pole switch (18) detects the engagement position of the pole (16) (corresponding to claim 3).

  In the control shown in FIG. 11, when the door (2) is closed, the pole switch (18) cannot detect the engagement position of the pole (16) due to the sudden closing of the door (2) and the like. Even if the latch cannot be moved to the full latch position within the time (Tb), after reversing the closure motor (17) and confirming the half latch area of the latch (15) during this reversal control, By controlling the closure motor (17) again in the closing direction, the latch (15) can be reliably moved to the full latch position.

  Next, FIG. 12 will be described. FIG. 12 shows, for example, the case where the door (2) is closed at a speed higher than the set speed and the pole switch (18) cannot detect the engagement position of the pole (16), and the seal reaction force or other causes Shows a time chart for a case where the latch (15) cannot be shifted to the full latch position within a predetermined time (time (Tb)).

  When the operation switch (13) is operated and the opening / closing motor (4a) of the opening / closing drive device (4) rotates in the closing direction, the door (2) moves from the open position to the closing direction. Along with this, the latch (15) engages with the striker (14) and rotates from the open position toward the half latch position. Thus, the latch area detection switch (20) detects the latch area of the latch (15) and switches from the ON state to the OFF state, and the first timer (in accordance with the OFF state of the latch area detection switch (20)). 11a) starts counting time (Ta). At the same time, the open / close control circuit unit (9) performs control to lower the duty ratio of the PWM control.

  Even in this case, the angular speed of the latch (15) becomes very fast due to the very fast closing speed of the door (2), so the same situation as described in FIG. The closure control circuit unit (10) cannot recognize the OFF signal of the pole switch (18) as a start signal.

  In this case, similarly to the control shown in FIG. 10, after the time (Ta) elapses, the closure motor (17) is rotated in the closing direction and the time measurement of the time (Tb) in the second timer (11b) is started. Let At the same time, the rotation of the opening / closing motor (4a) is stopped.

  As the closure motor (17) rotates, the latch (15) rotates from the half-latch area to the full-latch position.However, due to the seal reaction force or other causes, the latch (15) reaches the full-latch area within the time (Tb). Cannot rotate. In this case, after the time (Tb) elapses, the closure motor (17) is controlled to stop, and subsequently, the closure motor (17) is controlled to be reversed.

  If the pole switch (18) cannot detect the engagement position of the pole (16) during the reversal of the closure motor (17), the closure drive device (6) returns to the neutral state, and then the opening / closing motor (4a) Is rotated in the opening direction by reducing the duty ratio of the PWM control, and the door (2) is slightly displaced in the opening direction. Accordingly, the latch (15) is forcibly displaced from the transition region shown in FIG. 5 to the half latch position shown in FIG. 4, and the pole (16) is moved to the engagement position.

  When the pole switch (18) detects the engagement position of the pole (16) and switches from the ON state to the OFF state, the open / close motor (4a) is stopped and the closure motor (17) is opened again. Rotate in the closing direction and continue to rotate until the latch (15) reaches the full latch position.

  After the full latch area detection switch (19) detects the full latch area of the latch (15) and switches from the ON state to the OFF state, the pole (16) engages with the full latch engaging part (15b), and the pole switch When (18) detects the engagement position of the pole (16) and switches from the ON state to the OFF state, the full latch position of the latch (15) is detected. As a result, the closure motor (17) stops and then reverses to return the closure driving device (6) to the neutral state.

  In other words, the control in FIG. 11 is to drive the closure motor (17) in the closing direction after the elapse of time (Ta), and within the time (Ta) or time (Tb), the pole switch (18) When the engagement position of (16) cannot be detected, the closure motor (17) is reversely controlled, and the opening / closing motor (4a) is controlled to open, and the pole switch (18) is controlled by the pole (16 When the engagement position is detected, the closure motor (17) is driven and controlled in the door closing direction until the pole switch (18) detects the engagement position of the pole (corresponding to claim 4).

  In the control shown in FIG. 12, when the door (2) is closed, the pole switch (18) cannot detect the engagement position of the pole (16) due to the sudden closing of the door (2). After inverting the closure motor (17), the open / close motor (4a) is driven in the opening direction to positively move the latch (15) to the half-latch position. After confirming the latch position, the latch motor (17) can be reliably moved to the full latch position by driving the closure motor (17) again in the closing direction.

1 is an external view of an automobile according to an embodiment of the present invention. The block diagram of the control means which concerns on embodiment of this invention is shown. Operation | movement explanatory drawing when the door latch apparatus which concerns on embodiment of this invention exists in an open state is shown. Operation | movement explanatory drawing when the door latch apparatus which concerns on embodiment of this invention exists in a half latch state is shown. Operation | movement explanatory drawing when the door latch apparatus which concerns on embodiment of this invention exists in a transition state is shown. Operation | movement explanatory drawing when the door latch apparatus which concerns on embodiment of this invention exists in a transition state is shown. Operation | movement explanatory drawing when the door latch apparatus which concerns on embodiment of this invention exists in a full latch state is shown. The time chart of control concerning an embodiment of the invention is shown. The time chart of control concerning an embodiment of the invention is shown. The time chart of control concerning an embodiment of the invention is shown. The time chart of control concerning an embodiment of the invention is shown. The time chart of control concerning an embodiment of the invention is shown.

Explanation of symbols

(1) Automobile
(2) Sliding door (opening / closing body)
(3) Door handle
(4) Opening and closing drive device
(4a) Open / close motor
(5) Slide rail
(6) Closure drive device
(7) Door latch device
(8) Control means
(9) Open / close control circuit
(10) Closure control circuit
(11a) First timer
(11b) Second timer
(12) Power supply
(13) Operation switch
(14) striker
(15) Latch
(15a) Half latch engagement part
(15b) Full latch engaging part
(16) Paul
(16a) Detection lever
(17) Closure motor
(18) Pole switch
(19) Full latch area detection switch
(20) Latch area detection switch
(21) Cam lever
(22) (23) axis

Claims (5)

Detach from the striker, open position corresponding to the opening position of the opening and closing body, and barely engage with the striker, half latch position corresponding to the half door position of the opening and closing body, fully engaged with the striker, A latch that can move to a fully latched position corresponding to a fully closed position of the opening / closing body, and a pawl that engages with the latch at the half latch position and the full latch position of the latch to prevent the latch from rotating in the opening direction. A pole switch capable of detecting that the pole has moved to an engagement position engaged with the latch, and a latch area capable of detecting a latch area between a position immediately before the half latch position of the latch and a full latch position Detection switch and a full latch area detection switch capable of detecting a full latch area between a position immediately before the full latch position of the latch and the full latch position In closing drive of the opening-and-closing member having a closure motor drivable to said latch from the half-latch position or the vicinity thereof to the closing direction can be moved to the fully latched position,
In response to the detection of the latch area of the latch by the latch area detection switch, a first timer for measuring a predetermined time (Ta) and a predetermined time (Tb) after the time (Ta) has elapsed. A second timer that counts time, and after the time (Ta) has elapsed, the closure motor is driven and controlled in the closing direction, and the pole switch detects the engagement position of the pole within the time (Tb). In this case, a closing drive device for the opening / closing body is provided, wherein the closing motor is controlled to be driven in a closing direction until the pole switch detects the engaging position of the pole again. Detach from the striker, open position corresponding to the open position of the opening and closing body, barely engaged with the striker, half latch position corresponding to the half door position of the opening and closing body, fully engaged with the striker, A latch that can move to a fully latched position corresponding to a fully closed position of the opening / closing body, and a pawl that engages with the latch at the half latch position and the full latch position of the latch to prevent the latch from rotating in the opening direction. A pole switch capable of detecting that the pole has moved to an engagement position engaged with the latch, and a latch area capable of detecting a latch area between a position immediately before the half latch position of the latch and a full latch position Detection switch and a full latch area detection switch capable of detecting a full latch area between a position immediately before the full latch position of the latch and the full latch position In closing drive of the opening-and-closing member having a closure motor drivable to said latch from the half-latch position or the vicinity thereof to the closing direction can be moved to the fully latched position,
In response to the detection of the latch area of the latch by the latch area detection switch, a first timer for measuring a predetermined time (Ta) and a predetermined time (Tb) after the time (Ta) has elapsed. A second timer that counts time, and after the time (Ta) elapses, the closure motor is controlled to be driven in the closing direction, and the full latch area detection switch detects the full latch area of the latch within the time (Tb). In this case, there is provided a closing drive device for the opening / closing body, wherein the closing motor is provided with a control means capable of controlling the closure motor until the pole switch detects the engagement position of the pole. Detach from the striker, open position corresponding to the open position of the opening and closing body, barely engaged with the striker, half latch position corresponding to the half door position of the opening and closing body, fully engaged with the striker, A latch that can move to a fully latched position corresponding to a fully closed position of the opening / closing body, and a pawl that engages with the latch at the half latch position and the full latch position of the latch to prevent the latch from rotating in the opening direction. A pole switch capable of detecting that the pole has moved to an engagement position engaged with the latch, and a latch area capable of detecting a latch area between a position immediately before the half latch position of the latch and a full latch position Detection switch and a full latch area detection switch capable of detecting a full latch area between a position immediately before the full latch position of the latch and the full latch position In closing drive of the opening-and-closing member having a closure motor drivable to said latch from the half-latch position or the vicinity thereof to the closing direction can be moved to the fully latched position,
In response to the detection of the latch area of the latch by the latch area detection switch, a first timer for measuring a predetermined time (Ta) and a predetermined time (Tb) after the time (Ta) has elapsed. A second timer that counts time, and after the time (Ta) elapses, the closure motor is driven and controlled in the closing direction, and the pole switch is connected to the pole within the time (Ta) or the time (Tb). When the engagement position cannot be detected, the closure motor is reversely controlled, and when the pole switch detects the engagement position of the pole during the reverse control, the closure motor is connected to the pole by the pole switch. A closing drive device for an opening / closing body, characterized in that a control means is provided so that the drive control can be performed again in the closing direction until the position is detected. Detach from the striker, open position corresponding to the open position of the opening and closing body, barely engaged with the striker, half latch position corresponding to the half door position of the opening and closing body, fully engaged with the striker, A latch that can move to a fully latched position corresponding to a fully closed position of the opening / closing body, and a pawl that engages with the latch at the half latch position and the full latch position of the latch to prevent the latch from rotating in the opening direction. A pole switch capable of detecting that the pole has moved to an engagement position engaged with the latch, and a latch area capable of detecting a latch area between a position immediately before the half latch position of the latch and a full latch position Detection switch and a full latch area detection switch capable of detecting a full latch area between a position immediately before the full latch position of the latch and the full latch position A closure motor that can be driven in the closing direction to move the latch from the half latch position or its vicinity to the full latch position, and an opening and closing motor that can move the opening and closing body from the open position to the half door position or vice versa. In a closing drive device for an opening / closing body having
In response to the detection of the latch area of the latch by the latch area detection switch, a first timer for measuring a predetermined time (Ta) and a predetermined time (Tb) after the time (Ta) has elapsed. A second timer that counts time, and after the time (Ta) elapses, the closure motor is driven and controlled in the closing direction, and the pole switch is connected to the pole within the time (Ta) or the time (Tb). When the engagement position cannot be detected, the closure motor is reversely controlled, and the opening / closing motor is driven and controlled in the opening direction so that the pole switch detects the engagement position of the pole. A closing drive device for an opening / closing body, characterized in that control means is provided so that the drive control can be performed again in the closing direction until the engagement position of the pole is detected. The control means stops the closure motor when the pole switch detects the engagement position of the pole, the latch area detection switch detects the latch area of the latch, and further the full latch area detection switch detects the full latch area of the latch. The opening / closing body closing drive device according to any one of claims 1 to 4, wherein the opening / closing body closing drive device can be controlled.

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