JP4230235B2 - Opening and closing control device for opening and closing body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening / closing control device for an opening / closing body.
[0002]
[Prior art]
Conventionally, a back door provided in a vehicle has been directly opened by a user. In recent years, there has been a demand for an opening device that automatically opens a back door in order to improve the convenience of the back door. With regard to such a back door opening device, for example, when a user performs a door opening operation from the driver's seat, the collision with an obstacle is automatically avoided in consideration of the operation in a poor visibility state. A system that can do that is needed.
[0003]
As a system for detecting a collision with an obstacle, a system for detecting a door driving load and determining that the door is colliding with an obstacle when the driving load exceeds a predetermined load is known ( For example, see Patent Document 1).
[0004]
[Patent Document 1]
JP 2002-106257 A (page 3-4)
[0005]
[Problems to be solved by the invention]
However, in the system of Patent Document 1, in order to detect the collision between the door and the obstacle due to the change in the driving load of the door, an operation corresponding to the collision between the door and the obstacle is performed only after the door actually collides with the obstacle. Is going. Therefore, when this system is applied to a door opening device for a back door, there is a problem that the painted surface is scratched because the control is performed only after the back door collides with an obstacle such as a block fence behind the vehicle or a parked vehicle. .
[0006]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an opening / closing control device for an opening / closing body that can prevent a collision between the opening / closing body provided at the rear portion of the vehicle and an obstacle. Is to provide.
[0007]
[Means for Solving the Problems]
According to a first aspect of the present invention, in the opening / closing control device for an opening / closing body, a driving means that opens / closes an opening / closing body that is attached to a rear portion of the vehicle and is driven to open so as to protrude rearward of the vehicle; Detection means for detecting information about an obstacle in the body opening direction, and control means for controlling the opening / closing drive of the opening / closing body by the driving means based on the detection result of the detection means , the control means, An opening signal indicating the state of the opening / closing body is input from a handle switch provided on the opening / closing body, and when the opening signal is input, it is determined that the opening / closing body does not collide with an obstacle, and the opening / closing body is driven to open. Control the drive means to do.
[0008]
According to a second aspect of the present invention, in the first aspect of the invention, when the control means detects that there is an obstacle in the opening direction of the opening / closing body, the opening / closing body is driven to open. The driving means is controlled so as not to perform the operation.
[0009]
According to a third aspect of the present invention, in the first aspect of the present invention, when the control means detects that there is an obstacle in the opening direction of the opening / closing body, the control means drives the opening / closing body. The driving means is controlled so as to reverse the opening driving to the closing driving.
[0010]
According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the detection means detects an obstacle behind the vehicle when the vehicle moves backward. And the said control means drives the alerting | reporting means to alert | report to a user based on the distance of the said obstruction and the said vehicle.
[0011]
(Function)
According to invention of Claims 1-3, the collision with an opening-closing body and an obstruction is prevented. According to the first aspect of the present invention, the control means performs the opening operation of the opening / closing body regardless of the detection value of the detection means based on the operation of the handle switch.
According to the fourth aspect of the present invention, when the vehicle moves backward, the detection means detects an obstacle behind the vehicle, and the control means detects the vehicle and the obstacle based on the distance between the obstacle and the vehicle. The notifying means is driven so as not to collide with. Therefore, the detection means for preventing the collision between the opening / closing body and the obstacle and the detection means for detecting the obstacle behind the vehicle when the vehicle moves backward are the same, and thus the detection device mounted on the vehicle Increase is prevented.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, the vehicle 1 is provided with a back door 2 as an opening / closing body at the rear. As shown in FIG. 2, the back door 2 is attached so as to be openable and closable via a door hinge 3 provided above the rear portion of the vehicle 1.
[0013]
As shown in FIG. 1, air dampers 4 and 5 are attached to both sides of the vehicle 1 in the width direction, and are attached across the back door 2 and the vehicle 1. As shown in FIG. 3, the air dampers 4 and 5 support the back door 2 in the fully open position when the back door 2 is fully opened.
[0014]
The vehicle 1 is provided with an opening / closing control device 11 for automatically opening / closing the back door 2. As shown in FIG. 4, the open / close control device 11 includes a main switch 12, a handle switch 13, back sonars 14 to 16 as detection means, a controller 17 as control means, an actuator 18 as drive means, and a remote control device 19. Become.
[0015]
As shown in FIG. 1, the main switch 12 is disposed, for example, on a console panel 21 in the vehicle compartment, and the handle switch 13 is provided on the back door 2. The back sonars 14 to 16 are provided on a bumper 22 disposed in the rear part of the vehicle 1. Specifically, the back sonars 14 to 16 are embedded in both sides of the bumper 22 in the width direction of the vehicle 1 and substantially in the center in the width direction of the vehicle 1.
[0016]
The back sonars 14 to 16 output detection signals to the controller 17 according to the distance from the back sonars 14 to 16 to the obstacle behind the vehicle 1 using ultrasonic waves. The detection signals of the back sonars 14 to 16 are used to determine whether or not the back door 2 and the obstacle collide when performing the opening operation of the back door 2 according to the distance to the obstacle. At the same time, it is used to determine whether or not the vehicle 1 and the obstacle collide when the vehicle 1 is moved backward.
[0017]
When the position of a shift lever (not shown) is in reverse (back gear), the controller 17 determines whether there is an obstacle behind the vehicle 1 based on signals from the back sonars 14 to 16. When there is an obstacle, the controller 17 informs the driver that there is an obstacle by notifying means (for example, an alarm) (not shown) provided in the passenger compartment.
[0018]
The controller 17 includes a receiver 17a inside, and receives a signal output from a wireless remote control device 19 that can be carried by the user. The remote control device 19 includes a switch 19a, and transmits a signal by operating the switch 19a.
[0019]
As shown in FIG. 1, the actuator 18 is disposed in the vicinity of the rear portion of the vehicle 1, and is provided on the left side of the vehicle 1 in this embodiment. As shown in FIGS. 2 and 3, the actuator 18 includes a drive motor 23, a speed reduction mechanism 24 that adjusts the rotational speed of the drive motor 23, an arm member 25 that connects the speed reduction mechanism 24 and the back door 2, and a rod 26. It has. The actuator 18 is provided with a rotary encoder together with the drive motor 23, and the controller 17 can control the rotation angle and rotation speed of the drive motor 23.
[0020]
The opening / closing control device 11 configured as described above drives the actuator 18 according to the processing shown in FIG. 5 when an ON signal is input to the controller 17 from any of the main switch 12, the handle switch 13, and the switch 19a of the remote control device 19. Then, the opening operation of the back door 2 is performed.
[0021]
When the opening operation of the back door 2 is started, the controller 17 determines whether or not the opening signal of the back door 2 is input from the handle switch 13 in step S31.
[0022]
If it is determined in step S31 that the opening signal of the back door 2 is not input from the handle switch 13, that is, the opening signal is input to the controller 17 from the main switch 12 or the switch 19a of the remote controller 19, the controller 17 Shifts the processing to step S32.
[0023]
In step S32, the controller 17 reads the distance to the obstacle behind the vehicle 1 input from the back sonars 14 to 16, and the process proceeds to step S33.
[0024]
In step S <b> 33, the controller 17 determines whether there is an obstacle within a preset movable range of the back door 2 based on the distance to the obstacle behind the vehicle 1. If the controller 17 determines that there is no obstacle within the movable range of the back door 2, the process proceeds to step S34, and the normal control, that is, the drive motor 23 of the actuator 18 is driven to open the back door 2.
[0025]
If the controller 17 determines in step S33 that there is an obstacle within the movable range of the back door 2, the controller 17 invalidates the input door opening signal of the back door 2 in step S35 and ends the process. Therefore, the controller 17 does not drive the actuator 18.
[0026]
If it is determined in step S31 that the opening signal of the back door 2 is input from the handle switch 13, the controller 17 determines that the back door 2 does not collide with an obstacle even if the door opening operation is performed. Control goes to step S34.
[0027]
In step S <b> 34, the controller 17 performs normal control, that is, drives the drive motor 23 of the actuator 18 to open the back door 2. When the controller 17 performs an opening operation of the back door 2 in step S34, the process is terminated.
[0028]
More specifically, in order to input a door opening signal from the handle switch 13, the user needs to operate the handle switch 13 of the back door 2 from the rear of the vehicle 1. In such a situation, the back sonars 14 to 16 are It is considered that the user is detected or the user confirms the presence or absence of an obstacle. Therefore, the controller 17 opens the back door 2 based on the operation of the handle switch 13 regardless of the detection values of the back sonars 14 to 16.
[0029]
As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) When the controller 17 determines that an obstacle exists within the movable range of the back door 2 based on the distance to the obstacle behind the vehicle 1 detected by the back sonars 14 to 16, the drive motor of the actuator 18 23 is not driven. Accordingly, it is possible to prevent the back door 2 from being damaged due to the collision between the back door 2 and the obstacle.
[0030]
(2) When the controller 17 determines that an obstacle exists in the movable range of the back door 2 based on the distance to the obstacle behind the vehicle 1 detected by the back sonars 14 to 16, the drive motor of the actuator 18 23 is not driven. Therefore, the user can open the back door 2 without directly confirming the movable range of the back door 2.
[0031]
(3) The distance to the obstacle detected by the back sonars 14 to 16 is used to determine whether or not the back door 2 and the obstacle collide when the back door 2 is opened. This is used to determine whether or not the vehicle 1 and the obstacle collide when the vehicle 1 is moved backward. Accordingly, the back sonars 14 to 16 can prevent the vehicle 1 and the obstacle from colliding with each other during reverse travel, and can also prevent the back door 2 and the obstacle from colliding with each other when the back door 2 is opened.
[0032]
In addition, in a vehicle originally provided with back sonars 14 to 16 that detect the distance between the rear end of the vehicle and an obstacle, the back sonars 14 to 16 are used to determine whether the back door 2 can be opened. It is not necessary to provide a new sensor, and cost increase can be prevented.
[0033]
In addition, embodiment of this invention is not limited to the said embodiment, You may change as follows.
In the above embodiment, when the controller 17 determines that an obstacle exists within the movable range of the back door 2, the controller 17 invalidates the input door opening signal and does not drive the drive motor 23 of the actuator 18. I did it. However, various driving modes of the driving motor 23 of the actuator 18 by the controller 17 are conceivable.
[0034]
For example, the controller 17 detects the distance to the obstacle by the back sonars 14 to 16 by a scheduled interruption and opens the back door 2 until the distance from the obstacle reaches a predetermined value. The door 18 may be operated by driving the 18 drive motors 23.
[0035]
At this time, when the distance to the obstacle reaches a predetermined value, the drive motor 23 of the actuator 18 may be stopped to stop the door opening operation. Alternatively, the back door 2 may be closed by reversing the drive motor 23 of the actuator 18 when the distance from the obstacle reaches a predetermined value.
[0036]
In the above embodiment, the back sonars 14 to 16 detect the distance to the obstacle by ultrasonic waves, but the means for detecting the distance to the obstacle may be other means. The distance may be detected.
[0037]
Alternatively, an image may be captured by a back monitor and the distance between the obstacle and the rear end of the vehicle 1 may be detected by image recognition.
-In above-mentioned embodiment, although the back door 2 was attached above the rear part of the vehicle 1 with the door hinge 3, the attachment aspect of a back door is not limited to this, For example, the rear left side of the vehicle 1, the rear right side, Or you may attach so that rotation with respect to the vehicle 1 under a rear part is possible.
[0038]
In the above embodiment, the opening / closing control device for opening one back door 2 is embodied, but the opening / closing control device for opening a plurality of back doors (back doors divided into left and right or up and down) is used. It may be embodied.
[0039]
In the above embodiment, the back sonars 14 to 16 are embedded in the bumper 22 at three positions on both sides in the vehicle width direction and substantially in the center of the vehicle width so as to detect an object behind the vehicle. However, the formation position of the back sonar is not limited to this. For example, the back sonar may be embedded at three locations on the upper surface of the bumper 22 at both sides in the vehicle width direction and substantially at the center in the vehicle width direction. By embedding the back sonar in this manner, the detection accuracy of the back sonar is improved substantially upward, and the distance between the back door 2 and the obstacle existing in the movable range is more accurately detected. Can be prevented.
[0040]
Further, a back sonar may be provided on the back door. By providing the back sonar in this manner, an obstacle during the opening operation of the back door can be detected, and a collision between the back door and the obstacle can be prevented.
[0041]
In the above-described embodiment, the back sonars 14 to 16 are embedded at three positions on both sides of the bumper 22 in the vehicle width direction and substantially in the center in the vehicle width direction. However, the back sonars 14 to 16 may be embedded by using other numbers.
[0042]
Next, the technical idea grasped from each of the above embodiments will be described below.
(A) The opening / closing control device for an opening / closing body according to any one of claims 1 to 4, wherein the detection means is provided in the opening / closing body. Therefore, the obstacle during the opening operation of the opening / closing body is detected, and the collision between the opening / closing body and the obstacle can be prevented.
[0043]
【The invention's effect】
As described above in detail, according to the present invention, it is possible to provide an opening / closing control device for an opening / closing body capable of preventing a collision between the opening / closing body provided at the rear portion of the vehicle and an obstacle.
[Brief description of the drawings]
FIG. 1 is a perspective view of a vehicle.
FIG. 2 is a side view when the back door is closed.
FIG. 3 is a side view when the back door is opened.
FIG. 4 is a block diagram of an opening / closing control device for an opening / closing body.
FIG. 5 is a flowchart showing a back door opening process.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Back door as opening / closing body, 14-16 ... Back sonar as a detection means, 17 ... Controller as a control means, 18 ... Actuator as a drive means.

Claims (4)

Driving means for opening and closing an opening / closing body attached to the rear portion of the vehicle and driven to open so as to protrude rearward of the vehicle;
Detecting means for detecting information on an obstacle in the opening direction of the opening and closing body;
Control means for controlling the opening and closing drive of the opening and closing body by the driving means based on the detection result of the detection means ,
The control means inputs a door opening signal indicating the state of the opening / closing body from a handle switch provided on the opening / closing body, and determines that the door does not collide with an obstacle when the opening signal is input. An opening / closing control device for an opening / closing body , wherein the driving means is controlled so as to drive the body. The said control means controls the said drive means not to perform the opening drive of the said opening-closing body, when the said detection means detects that there exists an obstruction in the opening direction of the said opening-closing body. The opening / closing control device for an opening / closing body according to 1. The control means controls the driving means to reverse the driving of the opening / closing body from the opening driving to the closing driving when the detecting means detects that there is an obstacle in the opening direction of the opening / closing body. The opening / closing control device for an opening / closing body according to claim 1. The detecting means detects an obstacle behind the vehicle when the vehicle moves backward, and the control means drives an informing means for notifying a user based on a distance between the obstacle and the vehicle. The opening / closing control device for an opening / closing body according to any one of claims 1 to 3.

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