JP2007038873A - Sliding door device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding door device for a vehicle capable of suppressing the amount of protrusion to the outside in the vehicle width direction while avoiding interference with front wheels or rear wheels when the door is opened.
In a vehicle having a slide door 1 that is opened by a sliding operation toward the front of the vehicle and closed by a sliding operation toward the rear of the vehicle, a front wheel steering angle is provided. The front wheel rudder angle drive means 6 that changes the angle and the door that performs the interference prevention control for driving the front wheel rudder angle drive means 6 so that the front wheel rudder angle does not interfere with the slide door 1 when the slide door 1 is opened. State adjusting means 8.
[Selection] Figure 1

Description

  The present invention belongs to the technical field of a vehicle sliding door device including a sliding door that opens and closes a boarding / alighting opening provided on a side of a vehicle body by a sliding operation in the vehicle longitudinal direction.

Compared with hinged doors, sliding doors have the advantage that they have excellent ease of getting on and off because they can be opened even in narrow spaces because the amount of protrusion to the outside in the vehicle width direction when opening and closing the door is small, and the opening can be made larger. (For example, refer to Patent Document 1). Here, when the sliding door is provided in the front seat door opening, it is preferable that the opening direction of the sliding door is in front of the vehicle in consideration of interference with the rear seat occupant and getting on and off of the front seat occupant. .
JP 2004-34785 A

  However, the sliding door that opens to the front of the vehicle has a problem that, when the front wheel is steered greatly, the sliding door interferes with the protruding part of the vehicle body of the front wheel, so that a sufficient opening cannot be secured and the getting on / off property deteriorates. there were. On the other hand, when the sliding door is configured to slide obliquely forward in order to avoid interference with the front wheels, the amount of bulging outward in the vehicle width direction increases, and the advantages of the sliding door are not utilized. For example, when the front wheels are at the maximum turning angle, a protruding amount of 100 mm or more is required compared to a normal rear seat sliding door, and it is difficult to open in a narrow place.

  The present invention has been made paying attention to the above-mentioned problem, and its object is to suppress the amount of protrusion to the outside in the vehicle width direction while avoiding interference with the front wheel or the rear wheel when the door is opened. An object of the present invention is to provide a sliding door device for a vehicle that can perform the above.

In order to achieve the above object, the present invention provides:
In a vehicle having a sliding door that is opened by a sliding operation toward the front or rear of the vehicle, and closed by a sliding operation toward the rear or the front of the vehicle, provided on the side of the vehicle body.
Rudder angle varying means for varying the front wheel rudder angle or the rear wheel rudder angle;
Interference prevention control means for performing interference prevention control for driving and controlling the rudder angle varying means so that the front wheel rudder angle or the rear wheel rudder angle is a rudder angle that does not interfere with the slide door when the slide door is opened;
It is characterized by providing.

  Therefore, in the present invention, when the slide door is opened, the interference prevention control for driving and controlling the rudder angle varying means is performed so that the front wheel rudder angle or the rear wheel rudder angle becomes a rudder angle that does not interfere with the slide door. . That is, the sliding door is not protruded outward in the vehicle width direction to avoid interference with the front wheel or the rear wheel, but the front wheel steering angle or the rear wheel steering angle is reduced to avoid interference with the sliding door. . As a result, the amount of protrusion to the outside in the vehicle width direction can be reduced while avoiding interference with the front or rear wheels when the door is opened.

  Hereinafter, the best mode for carrying out the present invention will be described based on Examples 1 to 3.

First, the configuration will be described.
[overall structure]
FIG. 1 is an overall configuration diagram of a vehicle sliding door device according to a first embodiment.
The vehicle slide door device of the first embodiment includes a slide door 1, an internal slide rail portion 2, a parallel link 3, a slide angle changing means 4, a door position detecting means 5, a front wheel rudder angle drive means (steer angle). Variable means) 6, steering angle detection means 7, door state adjustment means (interference prevention control means) 8, and slide angle change presentation means 9.

  The sliding door 1 is provided in a front seat door opening (not shown) provided on the side of the vehicle body, and moves to the fully open door position by sliding the door from the fully closed door position to the front of the vehicle. The internal slide rail portion 2 is provided so as to be movable in the vehicle front-rear direction with respect to the slide door 1. The parallel link 3 is interposed between the slide rail portion 2 and the vehicle body, and adjusts the distance between the vehicle body and the slide door 1 when the slide door 1 is opened and closed. The slide angle changing means 4 changes a slide angle that is an angle of the slide door 1 with respect to the vehicle longitudinal direction. The door position detection means 5 detects opening / closing of the slide door 1 and outputs it to the door state adjustment means 8.

  The front wheel rudder angle drive means 6 drives the steering mechanism 11 to forcibly steer the front wheels 12, 12 regardless of the steering angle of the steering wheel 10. For example, the front wheel rudder angle drive means 6 generally assists the steering force. Therefore, it is possible to use an electric power steering system or an active steering system that automatically assists the steering angle. However, it is assumed that sufficient torque can be generated to enable stationary steering. The steering angle detection means 7 detects the steering angle of the steering wheel 10 and outputs it to the door state adjustment means 8.

  The door state adjusting unit 8 drives the slide angle changing unit 4 and the front wheel steering angle based on the open / closed state of the slide door 1 detected by the door position detecting unit 5 and the steering angle detected by the steering angle detecting unit 7. The means 6 is driven and controlled. When the slide door 1 is changed by the door state adjusting means 8, a warning is given to the driver by the slide angle change presenting means 9 provided in the passenger compartment (alarm sound, voice, display on meter / display, etc.).

[Slide angle changing means]
Next, the detailed structure of the slide angle changing means 4 will be described.
FIG. 2 is a plan view showing the slide angle changing means 4, and FIG. 3 is a rear view showing the slide angle changing means 4.

  The parallel link 3 has two link members, a parallel link rear part 3a and a parallel link front part 3b. The parallel link rear portion 3a is supported so as to be rotatable about a vertical support shaft with respect to the vehicle body via a parallel link rear portion fulcrum 13. A door position detector 5 is provided at the rear fulcrum 13 of the parallel link.

  The parallel link front portion 3b is supported via a parallel link front portion fulcrum 14 so as to be rotatable about a vertical support shaft with respect to the vehicle body. The parallel link front fulcrum 14 is provided so as to be movable in the vehicle width direction between the “normally open / closed position” and the “initial position” in FIG.

  The parallel link front fulcrum changing means 15 changes the position of the parallel link front fulcrum 14 and uses a solenoid or a linear actuator. At the time of normal opening and closing, that is, when the sliding door 1 can slide in the front-rear direction, the parallel link front fulcrum changing means 15 positions the parallel link front fulcrum 14 in the leftmost direction in FIGS. “Normally open / closed position”. On the other hand, when the sliding door 1 opens most diagonally (that is, the sliding angle θd is large), the rightmost direction, that is, the “initial position” is set.

  The parallel link front fulcrum changing means 15 includes a spring 15a that always urges the parallel link front fulcrum 14 in the right direction in the drawing. That is, when the parallel link front fulcrum changing means 15 is in an inoperative state, the parallel link front fulcrum 14 is in the initial position, and at this time, the sliding door 1 is opened obliquely so as not to interfere with the front wheels 12 and 12. Become. Thereby, for example, even when the power supply system of the vehicle has all failed, the slide door 1 can be opened without interfering with the front wheels 12 and 12.

  In the first embodiment, when the parallel link front fulcrum 14 is in the normal opening / closing position, the rotation of the parallel link front 3b is restricted, and the amount of protrusion of the slide door 1 to the outside in the vehicle width direction is reduced (normal sliding operation). Parallel link limiting means 17 is provided. The parallel link restricting means 17 is set on the rotation trajectory of the overhanging portion 16 protruding from the lower surface of the parallel link front portion 3b when the parallel link front portion fulcrum 14 is in the normal opening / closing position.

Next, the operation will be described.
[Sliding door opening and closing action]
(1) When the front wheel rudder angle is a small rudder angle that does not interfere with the slide door From the “fully closed door position” in FIG. 4 (a), the front seat passenger gets on the slide door 1 and applies force in the opening direction. First, the parallel link 3 rotates. At this time, the door state adjusting unit 8 calculates the rudder angle of the front wheel 12 from the steering angle of the steering wheel 1 detected by the steering angle detecting unit 7, and the front wheel rudder angle is an angle at which the front wheel rudder angle does not interfere with the slide door 1. Therefore, the power supply to the front wheel steering angle driving means 6 is continued. As a result, the parallel link front fulcrum 14 remains in the “normal opening / closing position”, the amount of rotation of the parallel link 3 is restricted by the parallel link restricting means 17, and the slide door 1 is shown in FIG. “Small stroke door position”.

  After that, the slide operation of the internal slide rail portion 2 causes the slide to “the fully open door position”. At this time, the sliding angle of the sliding door 1 is zero, and the sliding direction of the sliding door 1 coincides with the vehicle longitudinal direction.

(2) When the front wheel rudder angle is a large rudder angle that interferes with the slide door The door condition adjusting means 8 is configured to move the front wheel rudder when the slide door 1 moves from the “fully closed door position” to the “small stroke door position”. It is determined that the angle is an angle that interferes with the slide door 1, and the interference prevention control for driving the front wheel rudder angle driving means 6 to reduce the front wheel rudder angle is performed (FIG. 4B). Thereby, even when the sliding door 1 is slid from the “small stroke door position” to the “fully opened door position”, the interference between the sliding door 1 and the front wheel 12 can be avoided.

  FIG. 5 is a time chart illustrating the control operation of the front wheel steering angle according to the first embodiment. In this example, first, the vehicle is stopped at θt1, which is a large value of the front wheel rudder angle, and then the slide door 1 is opened and the slide door 1 is closed after getting off. First, when the sliding door 1 starts to open and the door position becomes D1 (for example, a small stroke door position), control for reducing the front wheel steering angle θt is started. When the door position is D2, the front wheel steering angle θt is set to zero to prevent the sliding door 1 and the front wheel 12 from interfering with each other. In this state, the front wheel rudder angle θt is zero, but the front wheel rudder angle when the driver operates the steering wheel 10 is θt, so that there is an unmatch (steering neutral deviation) between the steering angle and the front wheel rudder angle. Occurs. Therefore, in the case of the operation of closing the slide door 1 on the contrary, the front wheel 12 is automatically returned gradually from the door position D2 to the original front wheel steering angle θt1. Therefore, when the door position is D1, the front wheel steering angle is θt1, and no steering neutral deviation occurs.

(3) When the front wheel rudder angle driving means 6 fails When the front wheel rudder angle driving means 6 breaks down and the interference prevention control is impossible, the door state adjusting means 8 supplies power to the slide angle changing means 4. To stop. As a result, the parallel link front fulcrum 14 moves to the “initial position” by the biasing force of the spring 15a. At this time, as shown in FIG. 4C, the sliding angle θd of the sliding door 1 becomes the maximum sliding angle θdmax. In addition, the parallel link 3 is released from the restriction on the amount of rotation by the parallel link restricting means 17, and the vehicle body and the slide door 1 are at the farthest distance. The maximum slide angle θdmax is a slide angle at which the front wheel 12 does not interfere with the slide door 1 even when the front wheel rudder angle is the maximum rudder angle when the slide door 1 is opened. Therefore, as shown in FIG. Even if the steering is impossible and the front wheel rudder angle is the maximum rudder angle, the interference between the front wheel 12 and the slide door 1 can be avoided.

(4) When the driver steers with the door open during traveling For example, when the driver opens the sliding door 1 and enters the garage while checking the rear, the sliding door 1 is open during traveling When the driver operates the steering wheel 10, the slide angle changing means 4 controls the slide angle θd according to the front wheel steering angle θt. This relationship is shown in FIG. The slide angle θd from the front wheel rudder angle θt1 immediately before the front wheel 12 and the slide door 1 interfere with each other is set to a larger angle as the front wheel rudder angle θt increases, and the slide angle (θdmax) that does not completely interfere with the front wheel rudder angle θt2. While the slide angle θd is being changed, there is a possibility that the slide door 1 and the external obstacle come into contact with each other, so the driver is warned by the slide angle change presenting means 9.

  As described above, in the vehicular slide door device of the first embodiment, when the front wheel rudder angle can be changed by the front wheel rudder angle drive means 6, the amount of protrusion of the slide door 1 to the outside in the vehicle width direction is It can be suppressed to the same extent as a normal rear seat sliding door. Further, even when the front wheel rudder angle driving means 6 or the electric system fails or when the driver steers the steering wheel 10 with the slide door 1 opened, the interference between the slide door 1 and the front wheel 12 can be avoided.

Next, the effect will be described.
The vehicle sliding door device according to the first embodiment has the following effects.

  (1) Front wheel rudder angle drive means 6 for changing the front wheel rudder angle, and driving control of the front wheel rudder angle drive means 6 so that the front wheel rudder angle does not interfere with the slide door 1 when the slide door 1 is opened. Door state adjusting means 8 for performing interference prevention control. Therefore, the amount of protrusion to the outside in the vehicle width direction can be suppressed to the same level as that of the rear wheel while avoiding interference with the front wheel 12 when the door is opened.

  (2) When the sliding door 1 after the interference prevention control is closed, the door state adjusting means 8 returns the front wheel rudder angle to the rudder angle immediately before the interference prevention control, so that the steering angle and the front wheel rudder angle are unmatched. Occurrence).

  (3) A slide angle changing means 4 for changing the slide angle θd of the slide door 1 with respect to the vehicle longitudinal direction is provided. The maximum slide angle θdmax of the slide door 1 is such that the front wheel steering angle is the maximum steering angle when the slide door 1 is opened. Even in this case, the sliding angle is set so that the front wheel 12 does not interfere with the sliding door 1. Therefore, even when the interference prevention control by the front wheel steering is impossible, the interference with the front wheel 12 when the door is opened can be surely avoided by setting the slide angle θd to the maximum slide angle θdmax.

  (4) The door state adjusting means 8 makes it possible to reliably avoid interference with the front wheel 12 when the door is opened because the slide angle θd is set to the maximum slide angle θdmax when the interference prevention control by front wheel steering is impossible.

  (5) The door state adjusting means 8 is adapted to the front wheel steering angle so that the front wheel 12 and the slide door 1 do not interfere when the driver steers the front wheel 12 while the slide door 1 is open while the vehicle is running. Since the slide angle θd is changed, for example, even when the driver opens the slide door 1 and enters the garage while confirming the rear, interference between the front wheel 12 and the slide door 1 can be avoided.

  (6) In order to notify the driver of the change of the slide angle θd, the door state adjusting means 8 operates so that the slide door 1 may come into contact with an external obstacle when the door is opened due to the change of the slide angle θd. Can be warned.

  (7) When the sliding door 1 is opened and closed, the parallel link 3 for offsetting the sliding door 1 in the vehicle width direction is provided, and the slide angle changing means 4 changes the angle of the parallel link 3 with respect to the vehicle longitudinal direction. The mechanism for changing the distance can be easily configured using a parallel link used in a general sliding door.

  (8) When the slide angle θd is zero, it is provided with the parallel link restricting means 17 that regulates the amount of rotation of the parallel link 3 and sets the position in the vehicle width direction of the slide door 1 to the normal slide operation position. When the amount of protrusion of the door 1 to the outer side in the vehicle width direction can be reduced, and interference prevention control by front wheel steering is impossible, interference with the front wheel 12 when the door is open can be avoided.

  (9) The slide angle changing means 4 sets the slide angle θd to the maximum slide angle θdmax when not operating and sets the slide angle θd to zero when operating, so when the slide angle changing means 4 fails or the power cannot be supplied, the slide angle θd Can be set to the maximum slide angle θdmax, and interference between the front wheel 12 and the slide door 1 can be avoided.

  In the first embodiment, the example in which the sliding direction of the sliding door is set obliquely outside to avoid the interference with the front wheel when the front wheel rudder angle driving means fails is shown. In the second embodiment, the opening amount of the sliding door is regulated. It is an example which prevents interference with a front wheel.

  FIG. 7 is an overall configuration diagram of the vehicular slide door device according to the second embodiment. In the second embodiment, the door stop means 18 is provided on the inner side in the vehicle width direction of the slide door 1. The door stopping means 18 is retracted into the slide door 1 when the front wheel rudder angle driving means 6 is operating normally. When the front wheel rudder angle driving means 6 breaks down, the door stopping means 18 protrudes toward the vehicle body side. Engage with the provided engaged part (not shown). As shown in FIG. 7, the door position when the door stopping means 18 is activated is set so as not to contact the front wheel 12.

  For example, a solenoid (or a linear actuator) is used as the door stopping means 18, and the door stopping means 18 is set in a state of being pulled into the slide door 1 by supplying power to the solenoid, and protruding to the vehicle body side by stopping power supply to the solenoid. Yes. Therefore, even when the power supply to the door stop means 18 becomes impossible, the interference between the front wheel 12 and the slide door 1 can be prevented.

  Further, in the second embodiment, unlike the first embodiment, the parallel link front fulcrum 14 of the parallel link front portion 3b is supported by the vehicle body in a state in which it cannot move in the vehicle width direction. Other configurations are the same as those of the first embodiment shown in FIG.

Next, the effect will be described.
(10) Since the vehicle sliding door device according to the second embodiment includes the door stopping means 18 for restricting the movement of the sliding door 1 to the front wheel contact position when the interference prevention control by the front wheel steering is impossible, the front wheel steering angle is provided. Even when the drive means 6 is out of order, the amount of protrusion of the slide door 1 to the outside in the vehicle width direction can be suppressed to be equal to that of the rear wheel.

  FIG. 8 is a configuration diagram illustrating a main part of the vehicle sliding door device according to the third embodiment. The third embodiment replaces the door stopping unit 18 according to the second embodiment and restricts the amount of rotation of the parallel link 3. Stop means 19 is provided.

  When the front wheel steering angle driving means 6 is operating normally, the door stop means 19 protrudes upward from a predetermined part of the vehicle body and engages with the parallel link front part 3b (FIG. 8 (a)). When the front wheel rudder angle drive means 6 fails, it is pulled into a predetermined part. When the door stop means 19 is in the retracted state, the parallel link 3 rotates to the state shown in FIG. 8B, and is set so as not to interfere with the sliding door 1 even if the front wheel steering angle is the maximum steering angle. ing.

  The door stopping means 18 uses a solenoid, and is set to be in a retracted state by supplying power to the solenoid and in a protruding state by stopping power supply. Therefore, even when the power supply to the door stop means 19 becomes impossible, the interference between the front wheel 12 and the slide door 1 can be prevented.

  That is, in the vehicle sliding door device of the third embodiment, the amount of protrusion of the sliding door 1 to the outside in the vehicle width direction can be suppressed in a normal state, and when the interference prevention control by the front wheel steering is impossible, the door Interference with the front wheel 12 when opened can be avoided. Further, in contrast to the first embodiment in which the parallel link 17 is engaged with the overhanging portion 16 of the parallel link front portion 3b and the amount of rotation of the parallel link 3 is restricted, the door stop means 19 is brought into direct contact with the parallel link front portion 3b. Therefore, it is excellent in durability.

(Other examples)
As mentioned above, although the best form for implementing this invention was demonstrated based on Examples 1-3, the concrete structure of this invention is not limited to each Example, The summary of invention is shown. Design changes and the like within a range that does not deviate are also included in the present invention.

  For example, in the first to third embodiments, an example in which the steering wheel 1 and the steering mechanism 11 are mechanically connected is shown. However, the present invention is a so-called steering in which the steering wheel and the steering mechanism are mechanically separated. -It can be applied to a by-wire system. When the present invention is applied to a steer-by-wire system, a front wheel steering motor is used as a steering angle varying means.

  In the first to third embodiments, as an example of using the steering angle detection means for detecting the steering angle of the steering wheel as the means for detecting the front wheel steering angle, a means for detecting the pinion angle of the rack and pinion, A means for detecting the rotation angle of the front wheel steering angle driving means may be used.

  In the first to third embodiments, the present invention is a sliding door that slides and opens forward of the vehicle, and is applied to a vehicle in which the front wheel rudder angle is variable. It is also possible to apply to a vehicle in which the rear wheel rudder angle is variable in order to improve the turning ability at the door.

1 is an overall configuration diagram of a vehicle sliding door device according to a first embodiment. It is a top view which shows the slide angle change means. It is a rear view which shows the slide angle change means. It is a figure which shows the sliding door opening / closing effect | action of Example 1. FIG. 3 is a time chart illustrating a front wheel steering angle control operation according to the first embodiment. FIG. 6 is a relationship characteristic diagram between a front wheel steering angle and a slide angle according to the first embodiment. It is a whole block diagram of the sliding door apparatus for vehicles of Example 2. FIG. It is a block diagram which shows the principal part of the sliding door apparatus for vehicles of Example 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slide door 2 Internal slide rail part 3 Parallel link 3a Parallel link rear part 3b Parallel link front part 4 Slide angle change means 5 Door position detection means 6 Front wheel steering angle drive means (steering angle variable means)
7 Steering angle detection means 8 Door state adjustment means (interference prevention control means)
9 Slide angle change presenting means 10 Steering wheel 11 Steering mechanism 12 Front wheel 13 Parallel link rear fulcrum 14 Parallel link front fulcrum 15 Parallel link front fulcrum changing means 16 Overhanging part 17 Parallel link restricting means

Claims (11)

In a vehicle having a sliding door that is opened by a sliding operation toward the front or rear of the vehicle, and closed by a sliding operation toward the rear or the front of the vehicle, provided on the side of the vehicle body.
Rudder angle varying means for varying the front wheel rudder angle or the rear wheel rudder angle;
Interference prevention control means for performing interference prevention control for driving and controlling the rudder angle varying means so that the front wheel rudder angle or the rear wheel rudder angle is a rudder angle that does not interfere with the slide door when the slide door is opened;
A vehicle sliding door device comprising: The vehicle sliding door device according to claim 1,
The said interference prevention control means returns the said steering angle to the steering angle just before interference prevention control when the said slide door after interference prevention control closes, The vehicle slide door apparatus characterized by the above-mentioned. In the vehicle sliding door device according to claim 1 or 2,
A slide angle changing means for changing a slide angle of the slide door with respect to the vehicle longitudinal direction;
The maximum slide angle of the slide door is set to a slide angle at which the front wheel or the rear wheel does not interfere with the slide door even when the rudder angle is the maximum rudder angle when the slide door is opened. Sliding door device. The sliding door device for a vehicle according to claim 3,
When the interference prevention control by steering is impossible, the said interference prevention control means makes the said slide angle the said maximum slide angle, The vehicle slide door apparatus characterized by the above-mentioned. In the vehicle sliding door device according to claim 3 or 4,
The interference prevention control unit is configured to prevent the front wheel or the rear wheel and the slide door from interfering with each other when the driver steers the front wheel or the rear wheel with the slide door opened while the vehicle is running. The sliding door device for a vehicle is characterized in that the sliding angle is changed according to the above. The sliding door device for a vehicle according to any one of claims 3 to 5,
The vehicle sliding door device, wherein the interference prevention control means notifies a driver of the change of the sliding angle. The sliding door device for a vehicle according to any one of claims 3 to 6,
A parallel link that offsets the sliding door in the vehicle width direction when the sliding door is opened and closed,
The slide angle changing means changes the angle of the parallel link with respect to the longitudinal direction of the vehicle. The sliding door device for a vehicle according to claim 7,
A vehicle slide door device comprising: a parallel link restricting unit that restricts a rotation amount of the parallel link when the slide angle is zero and sets a position in the vehicle width direction of the slide door as a normal slide operation position. . The vehicle sliding door device according to claim 7 or 8,
The vehicle slide door device according to claim 1, wherein the slide angle changing means sets the slide angle to the maximum slide angle when not operated and sets the slide angle to zero when operated. In the vehicle sliding door device according to claim 1 or 2,
A vehicle sliding door device comprising door stopping means for restricting movement of the sliding door to a front wheel or rear wheel contact position when interference prevention control by front wheel or rear wheel steering is impossible. In a vehicle having a sliding door that is opened by a sliding operation toward the front or rear of the vehicle, and closed by a sliding operation toward the rear or the front of the vehicle, provided on the side of the vehicle body.
A sliding door device for a vehicle, wherein when the sliding door is opened, interference prevention control is performed to drive and control the rudder angle varying means so that the front wheel or the rear wheel has a rudder angle that does not interfere with the slide door.

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