JP3473182B2 - Power window control device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window control device, and more particularly to a power window control device capable of accurately stopping a window member such as a window glass at an intended stop position. .

[0002]

2. Description of the Related Art Conventionally, a power window in which a motor is used to open and close a window glass of an automobile door has been widely used. Examples of this type of power window include a device for moving the window glass up and down with an up switch and a down switch, a device for moving the window glass with a ventilation switch, and a device for arbitrarily setting the opening degree of the window glass with a slide switch. (See Japanese Patent Laid-Open No. 2-147786).

These up switch and down switch are
While pushing the switch, the window glass goes up or down,
The window stops when the switch is released. In addition, the ventilation switch automatically moves the window glass to a predetermined ventilation opening that is stored in advance when the switch is pressed.The slide switch automatically moves the window glass according to the set position of the slide switch. It is manually moved to set a predetermined opening degree.

[0004]

However, in the above-described power window, since the window glass and the mechanism for opening and closing the window glass have a considerably large inertia mechanically, for example, the up switch is opened at a desired opening degree. Even if the or down switch is released, the window glass does not stop exactly at the target position.

That is, since the window glass normally moves several cm even after the switch is released, even if the switch operation is performed at the same position, the window glass is greatly changed depending on whether the switch is released after being lowered or released. There was a problem that the stop position shifted. Further, even when the opening degree of the window is designated by the ventilation switch or the slide switch, similarly, there is a problem that the stop position is deviated between the ascending time and the descending time.

The present invention has been made to solve the above problems, and provides a control device for a power window in which the deviation of the stop position of the window member such as the window glass is small even when the window member is moved up and down. With the goal.

[0007]

The invention according to claim 1 for achieving the above object is, as illustrated in FIG. 1, a power window control device for driving a motor or the like to move a window member. An actual opening detection means for detecting the actual opening of the window member, a target opening instruction means for instructing the target opening of the window member, and an opening difference between the actual opening of the window member and the target opening. Is determined to be equal to or greater than a predetermined value, and when the difference in opening is determined to be equal to or greater than a predetermined value by the difference determination means, the difference in opening is reduced. When the moving means for moving the window member in the direction and the direction for reducing the opening difference are predetermined directions, the window member is reversed after passing the target opening to open the target opening. Direction stop control hand that outputs a stop command for the window member at a position corresponding to And a direction in which the opening difference is reduced in a direction opposite to the predetermined direction, an opposite direction stop control means for outputting a stop command for the window member at a position corresponding to the target opening degree. The gist is a power window control device characterized by the above.

According to a second aspect of the present invention, the target opening instruction means is a ventilation switch or a slide switch for instructing the opening degree of the window member. Is the gist.

The invention of claim 3 is, as illustrated in FIG.
In a power window control device that drives a motor or the like to move a window member, a predetermined direction movement command means for instructing movement of the window member in a predetermined direction, and a direction opposite to the predetermined direction of the window member. In the case where the window member moves in the predetermined direction according to the command of the opposite direction movement command means for commanding movement, the stop command means for commanding stop of the window member, and the predetermined direction movement command means, the stop command means When the stop of the window member is instructed by the predetermined direction stop control, the window member is first moved in the opposite direction, and then the stop operation of the window member is started according to the timing of the stop instruction before the movement in the opposite direction. And a stop command means for stopping the window member when the window member moves in the opposite direction by a command from the opposite direction movement command means. It is summarized as a control device for a power window, characterized in that and a direction opposite to the stop control means for starting the stopping operation of the window member at the timing of the command of the stop.

According to a fourth aspect of the present invention, the start timing of the stop operation of the window member by the predetermined direction stop control means is set to the position of the window member when the stop of the window member is instructed in the opposite direction. A gist of the power window control device according to claim 3 is that it is a timing when the window member arrives again due to the movement.

According to a fifth aspect of the present invention, the predetermined direction movement commanding means is an up switch for raising the window member or a down switch for lowering the window member. The gist is the control device of.

According to a sixth aspect of the present invention, the power window control device according to any one of the first to fifth aspects is characterized in that the predetermined direction is a direction in which the window member is raised or lowered. Use as a summary.

[0013]

According to the invention of claim 1, the actual opening detecting means detects the actual opening of the window member (for example, window glass),
The target opening instruction means indicates the target opening of the window member, and the opening difference determination means determines whether the opening difference between the actual opening of the window member and the target opening is a predetermined value or more ( For example, it is determined whether or not there is a slight deviation. When it is determined that the opening difference is equal to or greater than the predetermined value, the moving member moves the window member in a direction in which the opening difference is reduced. Then, when the direction in which the opening difference is reduced is a predetermined predetermined direction, the predetermined direction stop control means causes the window member to once pass the target opening and then is inverted to correspond to the target opening. When the stop command of the window member is output at the position and the direction in which the opening difference is reduced is the direction opposite to the predetermined direction, the opposite direction stop control means causes the window member at the position corresponding to the target opening. The stop command of is output.

That is, according to the present invention, when the window glass is opened from the target opening, for example, the window glass is once raised above the target opening and then inverted (lowered), and the lowering is stopped. On the other hand, when the window glass is closed more than the target opening degree, the window glass is lowered as it is and stopped. As a result, in any case, the command for stopping the movement of the window glass will be output, for example, at the timing of passing the target opening from above, so that even if the window glass and its drive mechanism have a large inertia. Even if there is
Therefore, the window glass can always be stopped accurately at a fixed position (corresponding to the target opening).

The output timing of the stop command is not necessarily limited to the position where the window glass has reached the target opening, but may be, for example, the timing at which the window glass passes a position separated from the target opening by a predetermined distance or the target opening. There is no particular limitation as long as it is a timing corresponding to the target opening degree such as a timing when a predetermined time has elapsed after the start.

According to the second aspect of the present invention, a ventilation switch or a slide switch for instructing the opening of the window member can be adopted as the target opening instructing means. According to the third aspect of the present invention, the predetermined direction movement command means commands the movement of the window member in the predetermined direction, and the opposite direction movement command means commands the movement of the window member in the direction opposite to the predetermined direction, and then stops. The command means commands the stop of the window member. Then, when the window member moves in the predetermined direction by the command of the predetermined direction movement command means, when the stop command means instructs the stop of the window member, the predetermined direction stop control means temporarily moves in the opposite direction and then , Start the stop operation of the window member according to the timing of the stop command before the movement in the opposite direction,
When the window member moves in the opposite direction by the command of the opposite direction movement command means and the stop command means instructs the stop of the window member, the opposite direction stop control means causes the window member at the timing of the stop command. To start the stop operation.

That is, according to the present invention, when the operation of the up switch is stopped, for example, the window glass is slightly moved upward from a desired position (for example, the position where the switch is released) due to inertia, so that the window glass is once moved downward. Then, the output is made to stop the descending of the window glass at the position when the switch is released (that is, the stop operation is started). On the other hand, for example, when the operation of the down switch is stopped, the inertia causes the window glass to shift a little below the desired position by itself, but the window glass is stopped as it is (the stop operation is started. To). Thereby, in any case, the command for stopping the movement of the window glass coincides with the timing when the operation of the down switch is stopped, so that even if the window glass or its drive mechanism has a large inertia, The window glass can always be stopped accurately at a fixed position.

According to the fourth aspect of the invention, the timing for starting the stopping operation of the window member by the predetermined direction stop control means is as follows.
The timing at which the window member again arrives at the position of the window member when the stop of the window member is commanded by the movement in the opposite direction can be adopted. In the invention of claim 5, as the predetermined direction movement command means, an up switch for raising the window member or a down switch for lowering the window member can be adopted. For example,
When the predetermined direction moving means is an up switch, the opposite direction movement command means is a down switch, and when not, the up switch and the down switch are reversed.

In the invention of claim 6, the direction in which the window member is raised or lowered can be adopted as the predetermined direction. For example, if the predetermined direction is the direction in which the window member is raised, the opposite direction is the downward direction, and if not,
Rise and fall are opposite.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) First, FIG. 3 is a schematic configuration diagram showing a configuration of a control device for a power window of the present embodiment.

As shown in FIG. 3, the power window of this embodiment includes a moving mechanism 5 for moving the window glass 3 of the door 1 of the automobile in the vertical direction (comprising gears, etc.) 5, a motor 7 for driving the moving mechanism 5, a motor. Electronic control device (EC
U) 9. This ECU 9 is a well-known CPU 9
a, ROM 9b, RAM 9c, input unit 9d, output unit 9
e, the bus line 9f and the like.

Among them, the input window 9d includes a power window switch 11 including an up switch 11a for raising the window glass 3 and a down switch 11b for lowering it.
A ventilation switch 13 for automatically moving the window glass 3 to a predetermined (previously stored) ventilation position P and a limit switch 15 for switching on / off operation at the position of the window glass 3 are connected. On the other hand, a drive circuit 17 for driving the motor 7 and the like are connected to the output unit 9e.

The limit switch 15 is a window glass 3
The switch is set to be turned off when is higher than the ventilation position P, and is turned on when is lower than the ventilation position P. Next, the control processing by the control device of the present embodiment having the above-mentioned configuration will be described based on the flowchart shown in FIG.

As shown in FIG. 4, in step 100, it is determined whether the ventilation switch 13 has been pressed. If an affirmative decision is made here, this processing is once terminated, while if a negative decision is made, the operation proceeds to step 110. In step 110, it is determined whether the current position of the window glass 3 is above or below a predetermined ventilation position P (that is, whether it is open above the ventilation opening), depending on whether the limit switch 15 is on or off. Here, the limit switch 15 is on (opened from the ventilation opening)
In the case of, the process proceeds to step 120, while in the case of off (closed from the ventilation opening), the process proceeds to step 150 described later.

In step 120, since the opening of the window glass 3 is too large, the motor 7 is driven to start the up operation for raising the window glass 3. In the following step 130, it is determined whether or not the position of the window glass 3 that is performing the up operation is closed from the ventilation opening degree, depending on whether the limit switch 15 is on or off. Here, when the limit switch 15 is on (opened from the ventilation opening), this determination operation is repeated to continue the up operation, while when it is off (closed from the ventilation opening), step 1 is performed.
Proceed to 40.

In step 140, the drive of the motor 7 is stopped, and a process for stopping the movement of the window glass 3 is performed. In this case, since the window glass 3 and the like have inertia, the window glass 3 moves slightly above the ventilation position P (moving distance ΔPU) and then stops even after the process of stopping the motor 7 is performed. That is, the position where the window glass 3 actually stops is P + ΔPU.

In step 150, which follows step 140 or is negatively determined in step 110, the window glass 3 is above the ventilation position P, so the motor 7 is driven to lower the window glass 3. Start down operation. In the following step 160, it is determined whether or not the position of the window glass 3 that is performing the down operation is more open than the ventilation opening, depending on whether the limit switch 15 is on or off. Here, if the limit switch 15 is off (closed from the ventilation opening), this determination operation is repeated to continue the down operation, while if it is on (open from the ventilation opening), the process proceeds to step 170. move on.

In step 170, the driving of the motor 7 is stopped and a process for stopping the movement of the window glass 3 is performed, and then this process is terminated. In this case, since the window glass 3 and the like have inertia, the window glass 3 moves slightly below the ventilation position P (moving distance ΔPD) and then stops even after the process of stopping the motor 7 is performed. That is, the position where the window glass 3 actually stops is P-ΔPD.

Thus, in this embodiment, the ventilation switch 1
When 3 is pressed and the position of the window glass 3 is below the ventilation position P, the window glass 3 is once raised and stopped immediately after passing the ventilation position P, and then lowered to pass the ventilation position P again. Immediately after stopping, stop at the predetermined position P-ΔP
It is stopped at D. On the other hand, when the position of the window glass 3 is above the ventilation position P, the window glass 3 is lowered as it is, stopped immediately after passing the ventilation position P, and similarly stopped at the predetermined position P-ΔPD. There is.

That is, in this embodiment, the ventilation switch 13
When the window is operated, regardless of the position of the window glass 3, a constant position P-Δ that is lower than the ventilation position P by ΔPD at all times.
Since it can be stopped by the PD, there is an effect that the accuracy of the stop position of the window glass 3 is extremely high, despite the inertia of the window glass 3 and the like. (Embodiment 2) Next, Embodiment 2 will be described. The description of the same portions as those in Embodiment 1 will be omitted or simplified, and different portions will be mainly described. The drawing numbers of the hardware configurations are the same as those in the first embodiment.

In this embodiment, the ventilation switch 13 is not
This is an example using a power window switch 11 which can manually set a stop position arbitrarily. In this embodiment, instead of the limit switch 15, a position sensor that can detect the position of the window glass 3 is used, and the higher the position of the window glass 3, the larger the output value STP of the position sensor is set. ing.

The control process of this embodiment will be described with reference to the flowchart of FIG. First, in step 200,
As the value of fdis indicating the current control state, STP indicating the stop operation is set. In the following step 210, the value of fdis indicating the current control state is set as the value of fdis · old indicating the previous control state.

In the following step 220, it is determined whether or not the up switch 11a has been operated to instruct the up movement of the window glass 3. If an affirmative judgment is made here, the routine proceeds to step 230, while if a negative judgment is made, the routine proceeds to step 250. In step 230, the motor 7 is driven to perform the up operation, and in the following step 240,
The value of fdis is set to UP to indicate an up operation.

On the other hand, in step 250 which is judged negative in step 220, the down switch 11b is operated to determine whether or not the down operation of the window glass 3 is instructed. If an affirmative judgment is made here, the routine proceeds to step 260, whereas if a negative judgment is made, the routine proceeds to step 280.
Proceed to.

In step 260, the motor 7 is driven to perform the down operation, and in the following step 270, the value of fdis is set to DN to indicate the down operation. On the other hand, in step 280, which is answered in the negative in step 250, the motor 7 is stopped and the stopping operation is performed.

In the following step 290, the value of fdis is set to STP to indicate the stop operation, and the following step 3
At 00, the position PSTP of the window glass 3 at the timing when the stop operation is instructed is read by the position sensor and the value PSTP is stored.

In step 310, which follows step 240, 270 or 300, it is determined whether fdis is STP and fdis · old is not STP, that is, it is the first stop operation this time. If an affirmative judgment is made here, the routine proceeds to step 320, while if a negative judgment is made, the routine directly returns to step 210.

In step 320, it is determined whether or not fdis · old is UP, that is, whether or not it was an up operation before the current stop operation, and if a positive determination is made here, step 3
If the determination is negative, the process directly returns to step 210. In step 330, the down operation is performed.

In the following step 340, it is determined whether or not the current position of the window glass 3 when performing the down operation is less than or equal to the position PSTP of the window glass 3 at the time of the stop operation command. If a negative determination is made here, this determination operation is repeated to continue the down operation, while if an affirmative determination is made, the operation proceeds to step 350.

In step 350, the drive of the motor 7 is stopped, the process for stopping the movement of the window glass 3 is performed, and the present process is temporarily terminated. In this case, since the window glass 3 and the like have inertia, the window glass 3 will be at the time of the stop operation command even after performing the process of stopping the motor 7.
After moving a little below the position PSTP, it stops.

As described above, in the present embodiment, when the up switch 11a is pushed and then released, the window glass 3 temporarily performs a down operation and then stops, while the down switch 11b is pushed and then released. In that case, since both of them stop as they are, they are stopped after performing the down operation. Therefore, even if the window glass 3 has inertia and has a property of stopping at a position slightly deviated from the time of the stop operation command, the amount of deviation is a constant amount downward.
Therefore, regardless of whether the window glass 3 is moved up or down, the displacement amount is constant, and the precision of the stop position is extremely high. (Third Embodiment) Next, a third embodiment will be described. The description of the same parts as those of the first embodiment will be omitted or simplified, and different parts will be mainly described. The drawing numbers of the hardware configurations are the same as those in the first embodiment.

In this embodiment, not the ventilation switch 13 or the power window switch 11, but the window glass 3 at the operating position.
This is an example using a slide switch that can specify the stop position of. Also in this embodiment, instead of the limit switch 15, a position sensor that can detect the position of the window glass 3 is used, and the higher the position of the window glass 3, the larger the output value STP of the position sensor is set. ing.

The control process of this embodiment will be described with reference to the flowchart of FIG. In step 400, it is determined whether or not the position of the window glass designated by the slide switch (hereinafter referred to as the position of the slide switch) is deviated from the actual position of the window glass 3. If an affirmative judgment is made here, the routine proceeds to step 410, while if a negative judgment is made, this judgment is repeated.

In step 410, it is determined from the position of the slide switch whether the window glass 3 is open. If an affirmative judgment is made here, the routine proceeds to step 420, while if a negative judgment is made, the routine proceeds to step 450 described later. In step 420, since the opening degree of the window glass 3 is too large, the motor 7 is driven to start the up operation for raising the window glass 3.

In the following step 430, the window glass 3 (moving up) from the position of the slide switch is moved.
It is determined whether or not is closed. If an affirmative judgment is made here, the routine proceeds to step 440, while if a negative judgment is made, this judgment is repeated. In step 440, the drive of the motor 7 is stopped and the process for stopping the movement of the window glass 3 is performed. In this case, since the window glass 3 and the like have inertia, the window glass 3 slightly moves upward and then stops even after the process of stopping the motor 7 is performed.

In step 450, which follows step 440 or is negatively judged in step 410, the window glass 3 is closed more than the position of the slide switch. Therefore, the motor 7 is driven and the window glass 3 is closed. Start down operation to lower. In the following step 460,
It is determined whether or not the window glass 3 (which is performing the down operation) is open from the position of the slide switch. If an affirmative judgment is made here, the routine proceeds to step 470, while if a negative judgment is made, this judgment is repeated.

In step 470, the drive of the motor 7 is stopped, a process for stopping the movement of the window glass 3 is performed, and this process is once terminated. In this case, since the window glass 3 and the like have inertia, the window glass 3 slightly moves downward and then stops even after the process of stopping the motor 7 is performed.

As described above, in this embodiment, when the slide switch is operated and the window glass 3 is open from the position of the slide switch, the window glass 3 is once raised and passed through the position of the slide switch. Immediately after that,
Then, it is lowered and stopped immediately after passing the position of the slide switch again. On the other hand, when the window glass 3 is closed from the position of the slide switch, the window glass 3 is lowered as it is and stopped immediately after passing the position of the slide switch.

That is, in this embodiment, when the slide switch is operated, the window glass 3 is always stopped at a constant position slightly lower than the position of the slide switch, regardless of the position of the window glass 3. Because you can
There is an effect that the precision of the stop position is extremely high.

The present invention is not limited to the embodiments described above, and can be carried out in various modes without departing from the scope of the present invention. For example, in each of the above-mentioned embodiments, when stopping when the window glass is moved up,
In the case of the down operation of the window glass, on the contrary, it may be stopped after performing the down operation once, and then stopped in the case of the down operation. .

The present invention can be applied not only to the up and down movements of the window glass, but also to the left and right movements and the diagonal movements. Further, the window glass is not limited to the window glass attached to the door, but can be applied to, for example, the window glass directly attached to the vehicle body.

Further, the present invention is not limited to window glass, but can be applied to a window member made of a composite material laminated with plastic or the like, or a material other than glass such as plastic (for example, a metal plate).

[0053]

As described above in detail, in the invention of claim 1, when the difference between the actual opening of the window member and the target opening is greater than or equal to a predetermined value, the direction of decreasing the difference in opening is reduced. When the window member is moved to a predetermined direction, the window member is once passed the target opening degree and then inverted, and then a stop command is output and the opening degree difference is changed. When the decreasing direction is the opposite direction, the stop command for the window member is output as it is.

Therefore, even if the window member or the like has a large inertia, the window glass can be stopped accurately at a constant position (corresponding to the target opening). According to the invention of claim 2, a ventilation switch or a slide switch for instructing the opening of the window member can be adopted as the target opening instructing means.

According to the invention of claim 3, when the stoppage of the window member is instructed when the window member moves in the predetermined direction,
Once the window member is moved in the opposite direction, the stop operation of the window member is started, and when the window member is moved in the opposite direction and the stop instruction of the window member is instructed, the stop operation of the window member is directly started. There is.

Therefore, similar to the first aspect, the remarkable effect that the window glass can always be stopped accurately at a constant position is achieved. In the invention of claim 4, as the timing for starting the stopping operation of the window member, the timing at which the window member again arrives at the position of the window member when the stop of the window member is commanded by the movement in the opposite direction can be adopted.

In the fifth aspect of the invention, as the predetermined direction movement command means, an up switch for raising the window member or a down switch for lowering the window member can be adopted. Claim 6
In the invention, the predetermined direction may be a direction in which the window member is raised or a direction in which the window member is lowered.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating the configuration of the invention of claim 1.

FIG. 2 is a block diagram illustrating the configuration of the invention of claim 3;

FIG. 3 is a configuration diagram illustrating a system according to a first embodiment.

FIG. 4 is a flowchart showing a control process of the first embodiment.

FIG. 5 is a flowchart showing a control process of the second embodiment.

FIG. 6 is a flowchart showing a control process of the third embodiment.

[Explanation of symbols]

1 ... Door 3 ... Window glass 7 ... Motor 9 ... Electronic control unit (ECU) 11 ... Power window switch 11a ... Up switch 11b ... Down switch 13 ... Ventilation switch 15 ... Limit switch

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Claims (6)

(57) [Claims] 1. A power window control device for moving a window member by driving a motor or the like, and an actual opening detection means for detecting an actual opening of the window member, and indicating a target opening of the window member. Target opening instruction means, opening difference determination means for determining whether the opening difference between the actual opening of the window member and the target opening is a predetermined value or more, and the opening difference determination means When it is determined that the opening difference is equal to or greater than a predetermined value, a moving unit that moves the window member in a direction that reduces the opening difference, and a predetermined direction in which the direction that reduces the opening difference is predetermined. In the case of, a predetermined direction stop control means for reversing the window member after passing the target opening and outputting a stop command for the window member at a position corresponding to the target opening; If the direction in which the difference is reduced is opposite to the predetermined direction, the target An opposite direction stop control means for outputting a stop command for the window member at a position corresponding to an opening degree. 2. The power window control device according to claim 1, wherein the target opening instruction means is a ventilation switch or a slide switch for instructing an opening degree of the window member. 3. A power window controller for driving a motor or the like to move a window member, a predetermined direction movement command means for commanding movement of the window member in a predetermined direction, and the predetermined direction of the window member. When the window member moves in the predetermined direction by the command of the opposite direction movement command means for commanding movement in the opposite direction, the stop command means for commanding stop of the window member, and the predetermined direction movement command means. When the stop command means instructs the stop of the window member, the stop operation of the window member is started according to the timing of the stop command before moving in the opposite direction after the temporary movement in the opposite direction. And a stop control means for stopping the window member when the window member moves in the opposite direction according to a command from the opposite direction movement command means. When commanded, the control device of the power window, characterized in that and a direction opposite to the stop control means for starting the stopping operation of the window member at the timing of the command of the stop. 4. The start timing of the stop operation of the window member by the predetermined direction stop control means is set to the position of the window member when the stop instruction of the window member is issued, and the window member is moved by the movement in the opposite direction. The control device for the power window according to claim 3, wherein the timing is the time when the power reaches again. 5. The predetermined direction movement commanding means is an up switch for raising a window member or a down switch for lowering a window member.
Control device for the described power window. 6. The power window control device according to claim 1, wherein the predetermined direction is a direction in which the window member is raised or lowered.