JP3749964B2 - Automatic sliding door control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic sliding door control device that controls opening and closing of a sliding door.
[0002]
[Prior art]
Conventionally, the automatic sliding door control device stops the motor and disengages the clutch (clutch OFF) when the automatically opened sliding door reaches the fully opened position.
[0003]
At this time, a gap is formed between the guide roller provided on the slide door and the fully open checker that prevents the guide roller from moving in the closing direction, and when the clutch is disconnected when the hill stops, the guide roller By the time the full checker is reached, its movement speed increases, and there is a risk of overcoming the full open checker. For this reason, in order to prevent getting over even in the case of a downhill in the closing direction, the checking force by the fully open checker has been increased.
[0004]
[Problems to be solved by the invention]
However, in such an automatic sliding door control device, the operating force when manually operating the sliding door and passing the fully open checker becomes large. In addition, during automatic opening and closing, since the motor load when passing through the full-open checker is large, it is determined that when overload control is performed to stop or reverse the motor by judging that overload detection is caught. It was necessary to disable the overload control when passing through the full-open checker (see JP-A-8-232537).
[0005]
The present invention has been made in view of such a conventional problem, and even if the check force by the full-open checker is reduced, it is possible to prevent inadvertent movement of the slide door when stopping on a slope. An object of the present invention is to provide an automatic sliding door control device.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, in the automatic sliding door control device of the present invention, when the sliding door is moved to the fully open position by the moving mechanism operated by the motor, the guide roller provided on the sliding door includes the guide roller. Motor stop means for stopping the motor when the slide door reaches the fully open position in an automatic slide door that reaches the fully open position after overcoming a fully open checker that prevents the guide roller from moving in the closing direction; A low output closing operation means for reversing the motor and moving the slide door in a closing direction at a low output so that the guide roller does not get over the fully open checker after the motor stopping means stops the motor; After the low-power closing operation means starts moving the sliding door in the closing direction, the guide roller is Reversal completion determining means for determining whether or not it has reached a position in contact with or close to, and in the reversal completion determination means, when it is determined that the guide roller has reached a position in contact with or close to the fully open checker, And a cutting stop means for stopping the motor and putting the clutch that transmits the driving force of the motor into a disconnected state.
[0007]
That is, when the slide door that is opened based on the switch operation reaches the fully open position, the motor that operates the slide door moving mechanism is stopped by the motor stop means. Next, the motor is reversed at a low output by the low output closing operation means, and the slide door is moved in the closing direction. Thereby, the guide roller provided in the slide door is moved at a slow speed and with a slight force in a direction close to the fully open checker.
[0008]
Then, after the reversal completion determining means starts moving the sliding door in the closing direction, it is determined whether or not the guide roller has reached a position close to or close to the fully open checker, and the guide roller contacts the fully open checker. Alternatively, when it is determined that the position has come close, the motor is stopped by the cutting stop means, and the clutch is disconnected to stop transmission of the driving force of the motor.
[0009]
As a result, when the slide door is moved to the fully open position, the guide roller located away from the fully open checker is stopped as close as possible as long as it slowly comes into contact with the fully open checker, and the clutch is disconnected. Manual operation is possible.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view showing a vehicle 1 equipped with an automatic sliding door control device according to the present embodiment, and a side portion of the vehicle 1 is provided with an entrance 2 and a step 3 for getting on and off, A slide door 4 for opening and closing the entrance / exit opening 2 is provided.
[0011]
The upper end of the sliding door 4 on the front side of the vehicle 1 is supported by an upper roller 11 that moves along the upper edge of the entrance opening 2 and the lower end moves along the side surface 12 of the step 3. It is supported by the lower roller 13. Further, the central portion on the vehicle rear side is supported by a rear roller 14 that moves in the vehicle front-rear direction, and can be moved from a fully open position where the entrance / exit opening 2 is fully open to a fully closed position where it is fully closed. Has been.
[0012]
As shown in FIG. 2, the guide roller 81 in the upper roller 11 or the rear roller 14 is movably supported in a rail 82 provided on the vehicle body, and a stopper 83 at the rear end of the rail 82 supports the slide door 4. A fully open position 84 is defined. Wherein the rail 82, a portion of the closed side of the fully open position 84 is provided in a state of full open checker 85 protrudes inwardly to be retractable formed in the rail 82 by the elastic force such as a leaf spring, The guide roller 81 is configured to prevent the sliding door 4 from moving in the closing direction by holding the guide roller 81 closer to the fully open position 84 than the fully open checker 85 when the guide roller 81 gets over the fully open checker 85. Has been.
[0013]
Further, as shown in FIG. 1, a closure unit 15 is provided in the slide door 4, and the front edge of the slide door 4 receives a supply of power to the closure unit 15. A terminal 16 is provided. In addition, a supply terminal 18 that forms a pair with the receiving terminal 16 is provided on the pillar 17 that forms an edge of the entrance opening 2 on the vehicle front side, and the slide door 4 moves to the fully closed position. When it is done, it is connected to the receiving terminal 16 so that power can be supplied to the closure unit 15. The upper part of the lower roller 13 of the slide door 4 is fixed to a traction member 19 extending from the side surface 12 of the step 3, and is pulled by the traction member 19 so as to move in the vehicle front-rear direction. It is configured.
[0014]
As shown by a broken line in FIG. 3, a moving mechanism 21 that moves the slide door 4 through the traction member 19 is provided in the inside of the step 3 where the traction member 19 extends. The moving mechanism 21 includes a support member 22 that supports the end of the traction member 19, a belt 23 provided with the support member 22, and the belt 23 movably supported along the side surface 12 of the step 3. The first and second pulleys 24 and 25, and the driving pulley 27 that is provided at the corner portion 26 of the step 3 and moves the belt 23 are configured.
[0015]
The drive pulley 27 is shaft-coupled to a final reduction gear 29d, and the final reduction gear 29d is meshed with the drive pulley side transmission gear 29c. The moving mechanism 21 is provided with a drive motor 31, and the drive motor 31 transmits the driving force to the motor side transmission gear 29 b via the worm gear reducer 30 and the intermediate gear 29 a. The motor side transmission gear 29b and the drive pulley side transmission gear 29c are provided above and below the electromagnetic clutch 28, and the electromagnetic clutch 28 is provided between the motor side transmission gear 29b and the drive pulley side transmission gear 29c. Intermittently. The installation location of the slide door rotation sensor 53 is set in the vicinity of the drive pulley 27 and is driven by the electromagnetic clutch 28 so that the slide door position and moving speed can be detected even when the slide door 4 is manually opened and closed. It is provided on the pulley 27 side. The slide door rotation sensor 53 uses a known contact-type two-phase encoder, but may be an optical sensor that can detect normal rotation and reverse rotation.
[0016]
Thereby, when the electromagnetic clutch 28 is controlled to be on, a joined state is formed in which the drive motor 31 side and the drive pulley 27 side are joined, and the drive force of the drive motor 31 is applied to the drive pulley 27. When the drive motor 31 is stopped, the resistance of the drive motor 31, the worm gear reducer 30, the intermediate gear 29b, and the motor side transmission gear 29b prevents the sliding door 4 from moving due to its own weight when stopping on a steep slope. The On the other hand, when the turn-off control is performed, a cut state is formed in which the drive motor 31 and the drive pulley 27 are separated from each other, and the slide door 4 can be manually opened and closed. The drive motor 31 and the electromagnetic clutch 28 are connected to an automatic sliding door unit 32 installed in the vehicle 1 as shown in FIG.
[0017]
The auto-sliding door unit 32 is mainly configured by a microcomputer M (microcomputer) as a control means having a built-in ROM and RAM, and a driving power source for driving the driving motor 31 described above via a circuit breaker 41. And an electric power source 43 for driving a microcomputer whose voltage is stabilized. In addition, an ignition switch 44 is connected to the automatic sliding door unit 32, and a shift P switch 45 that is turned on when the select lever is selected in the P range, and the ignition switch 44, A stop lamp switch 46 that is turned on when the foot brake is operated is connected. Further, a main switch 47 is connected to the auto slide door unit 32, and the slide door 4 can be driven when the main switch 47 is operated.
[0018]
The auto slide door unit 32 is connected with a speed sensor 51 for detecting the vehicle speed and a buzzer 52 and a slide door rotation sensor 53. The sliding door rotation sensor 53 includes the above-described encoder, and the encoder includes a first pulse output 54 and a second pulse output 55. The pulse signals output from both the pulse outputs 54 and 55 are configured such that the cycle becomes shorter as the moving speed of the slide door 4 increases, and the pulse signal has a phase corresponding to the moving direction of the slide door 4. Is configured to output. The slide door rotation sensor 53 detects the speed, position, etc. of the slide door 4 from the rotation speed of the encoder, and serves as a ground for matching the voltage with the reverse detection output 56 of the slide door 4 and the microcomputer M. A GND line 57 is provided and connected to the automatic sliding door unit 32.
[0019]
Further, the auto slide door unit 32 includes a parking switch 61 that is turned on when a parking brake is operated, a slide door opening switch 62 that is operated when the sliding door 4 is opened, and a closing operation. Are connected to a slide door closing switch 63 which is operated by the first and second sliding door switches 64 which are turned off when the sliding door 4 is fully closed, and supply power to the closure unit 15. Second supply outputs 65 and 66 are connected to the supply terminal 18.
[0020]
The control unit 71 of the closure unit 15 that receives power supply from these supply terminals 18 drives a latch (not shown) on the slide door 4 side that is locked to a striker provided on the vehicle body to release the locked state. A latch release actuator 72, a half switch 73 that operates by detecting a half-lock state immediately before the latch is locked to the striker, a neutral switch 74 that operates by detecting a neutral state of the latch, and the latch A full lock switch 75 that operates by detecting the locked state by the striker is connected. The closure unit 15 is connected to a slide door closure motor 76 that pulls the slide door 4 in the half-locked state to the full-locked state.
[0021]
In the present embodiment having the above configuration, the operation when the sliding door opening switch 62 is operated and the sliding door 4 is opened will be described with reference to the flowchart shown in FIG.
[0022]
That is, when the slide door opening switch 62 is operated, the duty ratio of the duty output to the drive motor 31 is controlled to open the slide door 4 at a constant speed (S1). From the total number of pulses from the first or second pulse output 54, 55, the slide door 4 is fully opened as shown in FIG. 2 (the position of the slide door 4 indicated by the position of the guide roller 81). It is determined whether or not the fully open area 92 from the fully open vicinity position 91 set to the closed side of the position 84 to the fully open position 84 has been reached (S2). At this time, if the slide door 4 does not reach the pre-open area 92, it is determined whether or not the operation of the slide door open switch 62 is continued (S3). Returns to the step S1 and continues the opening operation. On the other hand, if the operation is not continued, the drive motor 31 is stopped and the electromagnetic clutch 28 is maintained in the connected state, and the sliding door 4 is stopped (S4). . Thereby, since the sliding state of the electromagnetic clutch 28 is maintained while the sliding door 4 is stopped at the half-open position, the sliding door 4 can be prevented from moving due to its own weight when the vehicle stops suddenly. On the other hand, if it is determined in step S2 that the slide door 4 has reached the pre-opening area 92, the process branches to step S5.
[0023]
In step S5, when the number of pulses from the first or second pulse output 54, 55 of the slide door rotation sensor 53 exceeds a predetermined value and the pulse width exceeds a predetermined value, the slide door 4 is fully opened 84. If the fully open position 84 has not been reached, the flow branches to step S1 to continue the opening operation. On the other hand, if the fully open position 84 has been reached, ( As shown to a), the drive motor 31 is stopped and the movement of the slide door 4 is stopped (S6). After that, the drive motor 31 is reversed at a low output that is reduced to a level that the guide roller 81 does not pass over the full-open checker 85, specifically, a low output with a duty ratio of 40% (S7), and the opening operation is performed. The slide door 4 is moved in the closing direction at a low output and at a low speed. As a result, the guide roller 81 of the slide door 4 is moved at a slow speed and with a slight force in a direction close to the fully open checker, as shown in FIG.
[0024]
Then, after the sliding door 4 starts to move in the closing direction, the sliding door 4 is lowered to determine whether or not the guide roller 81 has reached the position where it contacts or is close to the fully-open checker 85. A determination is made as to whether or not a certain period of time that the guide roller 81 is expected to reach the fully open checker 85 has elapsed since the start of the output closing operation (S8), and the guide roller 81 contacts the full open checker 85 or It is determined whether or not the movement amount has moved until it has approached based on whether or not the first or second pulse output 54, 55 has been input in a predetermined number of pulses, specifically six pulses (S9). If the predetermined time has not elapsed and the predetermined number of pulses has not been input, the process branches to step S1 to continue the low output closing operation. On the other hand, when the predetermined time has elapsed or when the predetermined number of pulses is input, the drive motor 31 is stopped and the electromagnetic clutch 28 is disengaged to end. Thus, the slide door 4 can be manually operated, and the guide roller 81 is held in contact with or close to the fully open checker 85 at the fully open position 84 side of the fully open checker 85, so that the slide door 4 is held. Inadvertent movement in the closing direction is prevented.
[0025]
As described above, when the slide door 4 is moved to the fully open position 84, the guide roller 81 located away from the fully open checker 85 is slowly moved as shown in FIGS. 6 (a) to 6 (b). It is possible to stop as close as possible as long as it contacts the fully open checker 85. Then, with the guide roller 81 in contact with or close to the fully open checker 85, the electromagnetic clutch 28 is disconnected and the connection state between the drive motor 31 side and the drive pulley 27 side is released. Therefore, the connection between the drive motor 31 and the moving mechanism 21 is released in a state where the guide roller 81 and the fully open checker 85 are separated from each other, thereby accelerating until the guide roller 81 reaches the fully open checker 85 when stopping on a steep slope. Then, compared with the conventional case where there is a possibility of overcoming the fully open checker 85, the guide roller 81 can be prevented from moving in the closing direction over the fully open checker 85. Therefore, inadvertent closing operation of the slide door 4 can be reliably prevented.
[0026]
Thereby, since the check force of the full open checker 85 can be reduced, the operation force when the slide door 4 is manually operated to pass the full open checker 85 can be reduced, and the operability can be improved. In addition, when the automatic opening / closing operation is performed, since the motor load when passing through the full-open checker 85 is reduced, an overload control for stopping or reversing the drive motor 31 by determining that the overload detection is caught is provided. Even in such a case, the process of invalidating the overload control when passing through the full-open checker 85 becomes unnecessary.
[0027]
In the present embodiment, the slide door rotation sensor 53 has a number of pulses greater than or equal to a predetermined number from the first or second pulse outputs 54 and 55, and the pulse width exceeds a predetermined value. The case where it is determined whether or not the door 4 has reached the fully open position 84 has been described as an example. However, the present invention is not limited to this. For example, the determination may be made based on an increase in load on the drive motor 31. Furthermore, a switch for detecting the fully open position may be provided.
[0028]
When the sliding door reaches the fully open position, the drive motor is stopped, and then the control voltage applied to the clutch is duty controlled to adjust the transmission maintaining force of the clutch. Although it is conceivable to move to a state where it is in contact with or close to the checker, in this case, the clutch becomes expensive because the transmission maintaining force can be adjusted (half-clutch state).
[0029]
【The invention's effect】
As described above, in the automatic slide door control device of the present invention, when the slide door is moved to the fully open position, the guide roller located away from the fully open checker is slowly brought into contact with or close to the fully open checker. Can be stopped. Then, in a state where the guide roller is in contact with or close to the fully open checker, the connection state of the clutch is released and the clutch is disengaged. Therefore, when the guide roller and the fully open checker are separated from each other, the connection between the motor and the moving mechanism is released, so that when the vehicle stops steeply, the guide roller accelerates until it reaches the fully open checker and gets over the fully open checker. Compared with the feared prior art, the guide roller can be prevented from moving beyond the fully open checker in the closing direction, and the inadvertent closing operation of the slide door can be reliably prevented.
[0030]
Thereby, since the check force of the said full open checker can be made small, the operation force at the time of manually operating a slide door and letting a full open checker pass can be made small, and the operativity can be aimed at. Further, at the time of automatic opening and closing, since the motor load at the time of passing the full-open checker becomes small, even when it is provided with overload control that determines that the detection of overload is caught and stops or reverses the motor When passing through the full-open checker, the process of invalidating the overload control becomes unnecessary.
When the sliding door reaches the fully open position, the drive motor is stopped, and then the control voltage applied to the clutch is duty controlled to adjust the transmission maintaining force of the clutch. Although it can be considered that the checker is moved to a state where it is in contact with or close to the checker, in this case, a clutch capable of adjusting the transmission maintaining force (half-clutch state) is required, which is expensive.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is an explanatory view showing the moving position of the slide door according to the embodiment in the position of the guide roller.
FIG. 3 is an A arrow view of FIG.
FIG. 4 is a block diagram according to the same embodiment;
FIG. 5 is a flowchart showing the operation of the embodiment.
6A is an explanatory view showing the position of the guide roller when the slide door reaches the fully open position, and FIG. 6B is an explanatory view showing a state in which the guide roller is moved to the closing side. is there.
[Explanation of symbols]
4 Slide Door 21 Moving Mechanism 28 Electromagnetic Clutch 31 Drive Motor 32 Auto Slide Door Unit 81 Guide Roller 84 Fully Open Position 85 Fully Open Checker M Microcomputer

Claims (1)

When the slide door is moved to the fully open position by the motor-operated moving mechanism, the guide roller provided on the slide door passes over the fully open checker that prevents the guide roller from moving in the closing direction, and then the fully open position is reached. In the automatic sliding door that reaches
Motor stopping means for stopping the motor when the sliding door reaches the fully open position;
Low output closing operation means for reversing the motor and moving the slide door in the closing direction at a low output that the guide roller does not get over the fully open checker after the motor stopping means stops the motor;
After the low output closing operation means starts moving in the closing direction of the slide door, a reverse completion judging means for judging whether or not the guide roller has reached a position in contact with or close to the fully opened checker;
When the reversal completion determining means determines that the guide roller has reached a position in contact with or close to the fully open checker, the motor is stopped and the clutch that transmits the driving force of the motor is brought into a disconnected state. Cutting stop means;
An automatic sliding door control device characterized by comprising:

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