JP2002081243A - Childproof device for power window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a childproof device for a power window capable of preventing a child from carelessly opening and closing the power window and allowing an adult to freely open and close the power window. SOLUTION: Power window switches PSW1 to PSW3 for operating window driving motors MR1 to MR3 for driving the power window and lock state detecting switches DSW1 to DSW3 for interlocking with ON/OFF of child lock switches MSW1 to MSW3 are made to correspond one to one to each other, and are arranged on respective doors DR1 to DR3. Mischief of the power window by the child is prevented by invalidating only operation of the power window switch of the door of turning on the child lock switch, and operation of the power window by the adult taking a seat of turning off the child lock switch is freely permitted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window child proof device for preventing a child from mischieving a power window.

[0002]

2. Description of the Related Art There is already known an automobile in which a child lock switch is provided on a door of a rear seat so as to restrict opening and closing operations of the door by a child riding the vehicle. Usually, this kind of child lock switch is provided on the outer peripheral portion of the door of the rear seat, that is, a portion which cannot be operated once the door is closed, and when the child lock switch is turned ON, the child lock switch is provided from inside the vehicle. By prohibiting the opening and closing operation of the door, it is possible to prevent a child riding the vehicle from inadvertently opening and closing the door of the car.

[0003]

However, this child lock switch merely inhibits the opening and closing operation of the door to the extent that it is tired, and has no function of inhibiting the opening and closing operation of the power window. For this reason, children often inadvertently open and close the power window during heating or cooling to reduce the efficiency of the air conditioner. There was also the possibility of mischief appearing.

In order to solve such a problem, an automobile in which a window lock switch for inhibiting a power window opening / closing operation is provided on the driver's seat side has been proposed, for example, in Japanese Patent Application Laid-Open No. H10-140899. . However, in this case, since the operation of the power windows of all the doors is prohibited by the window lock switch, even the operation of the power windows of the doors for which the child lock switch is not set to the ON state is prohibited. In the case where an adult and a child are sitting on the left and right sides of the rear seat, the operation of the power window of the door on which the adult is sitting is prohibited. Even in such a case,
The power window can be opened and closed by asking the driver to operate the driver's seat power window compulsory open / close switch.However, the driver who is driving the car must speak to the driver, There is a problem that both the sitting adult and the driver driving are troublesome to operate.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to eliminate the drawbacks of the prior art, prevent a child from inadvertently opening and closing the power window, and allow an adult to freely open and close the power window. To provide a child proof device for a power window.

[0006]

According to the present invention, a child lock switch for restricting the opening / closing operation of a door from the inside of an automobile and a power window switch for opening / closing a power window are provided in one-to-one correspondence. A window operation that is provided at least in each of the rear seat doors and that prohibits the opening and closing operation of the power window by the power window switch corresponding to the child lock switch only when the child lock switch is set to ON. The above object has been attained by a configuration characterized by providing a restricting means.

According to such a configuration, only the opening / closing operation of the power window of the door for which the child lock switch is set to ON is prohibited. Therefore, the seat on which the child is riding, that is, the child lock switch is set to ON. Inadvertent opening / closing of the power window in the seat that has been set is prohibited, while opening / closing of the power window in the seat where an adult sits, that is, the child lock switch is not set to ON, is freely allowed. Become so. As a result, the child is prevented from inadvertently opening and closing the power window, and the adult can freely open and close the power window.

Further, the child lock switch is turned ON / OFF.
A forced open / close switch for opening / closing the power window regardless of the OFF state may be provided near the driver's seat.

According to such a configuration, even if the child lock switch is set to ON while the power window is moved to an improper open / close position, the driver or other adult's intention is set. Thereby, the power window can be moved to an appropriate open / close position. Further, since the forced open / close switch is provided near the driver's seat, there is no fear of being operated by a child's mischief.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a functional block diagram schematically showing the configuration of a child proof device 1 for a power window according to an embodiment of the present invention, and FIG. 2 includes components of a conventional child lock switch and a power window. FIG. 2 is a conceptual diagram showing an overall arrangement of components related to the child proof device 1 for a power window of the present embodiment.

As shown in FIG. 2, the vehicle body 2 includes:
A driver seat door DR0 and a rear seat right door DR1, and a rear seat left door DR2 and a passenger seat door DR3 are provided, and all the doors except the driver seat door DR0, that is, all the seats where a child may sit are provided. Each of the doors is provided with a child lock switch MSW1 to MSW3 that functions individually.

These child lock switches MSW
1 to MSW3 are conventionally known mechanical switches provided on the outer peripheral portion of the door and the like. By setting these child lock switches MSW1 to MSW3 to ON, the opening / closing operation of each door from the inside of the automobile is mechanically performed. It is prohibited and only the opening and closing operation of the door from outside the vehicle is allowed. As in the related art, when the child lock switches MSW1 to MSW3 are set to OFF, the doors can be opened and closed from both inside and outside the vehicle.

Further, in the present embodiment, the electric lock state detection switches DSW1 to DS in conjunction with each of the child lock switches MSW1 to MSW3.
W3 is located in each door. The structure of the lock state detection switches DSW1 to DSW3 is as shown in FIG.
Are the corresponding child lock switches MSW1 to MSW
It is grounded only when W3 is set to ON, and the child lock switch MSW is connected to the CPU 3 as control means.
1 to MSW3 are notified.

A window drive motor MR for opening and closing the respective windows is provided on each of the rear seat right door DR1, the rear seat left door DR2, and the passenger seat door DR3.
1, MR2 and MR3 are provided, and power window switches PSW1 to PSW3 provided in each door.
Operation of the window drive motors MR1, MR2,
By driving each of the MRs 3 in the forward and reverse directions, each window can be freely opened and closed.

Power window switches PSW1 to PSW
The structure of W3 is as shown in FIG. 1. When these power window switches PSW1 to PSW3 are pushed upward, the power window switches PSW1 to PSW are turned on.
3 contacts the UP-side input circuit, and a command for rotating the window drive motors MR1 to MR3 forward is input to the CPU 3 serving as control means. Further, when the power window switches PSW1 to PSW3 are pressed down, the respective contacts of the power window switches PSW1 to PSW3 come into contact with the DOWN side input circuit, and the CPU 3 as the control means causes the CPU 3 as the control means to reverse the respective window drive motors MR1 to MR3. Is input.

[0016] The CPU constituting the control means detects the operated power window switch and the operating direction thereof. Only when the lock state detecting switch corresponding to the power window switch is turned off, the corresponding control is performed. Forward or reverse operation of the window drive motor to be performed.

The window of the driver's seat door DR0 is
It is independently opened and closed by a window drive motor MR0 operated by a main switch SW0 disposed near the driver's seat.

The main switch SW0 is also a switch means also serving as a forced open / close switch, and is independent of the ON / OFF states of the lock state detection switches DSW1 to DSW3, regardless of the window drive motors MR1, MR2, MR.
3 can be independently driven to individually open and close the windows of the rear seat right door DR1, the rear seat left door DR2, and the passenger seat door DR3.

FIG. 1 conceptually shows the function of the main switch SW0. The main switch SW0 is formed by integrating four switches for convenience, and the driver's door DR
0 window drive motor MR0 and rear seat right door DR
The UP (forward) / DOWN (reverse) drive signal is independently supplied to each of the first window drive motor MR1 and the window drive motor MR2 of the rear seat left door DR2 and the window drive motor MR3 of the front passenger door DR3. It can output.

Next, the overall operation of the child proof device 1 for a power window according to the present embodiment will be described in detail with reference to a flowchart of FIG. 3 showing an outline of a window opening / closing process which is repeatedly executed by the CPU 3 at predetermined intervals. Will be described.

The CPU 3 that has started the window opening / closing process at predetermined intervals first increments the value of a scanning counter C for specifying a window drive motor to be detected as a switch operation by one (step S1). It is determined whether or not the value of C exceeds the set value 3 (step S2). If the value of the scanning counter C does not exceed the set value 3, the current value of the scanning counter C is held, and if the value exceeds 3, the initial value 0 is reset to the scanning counter C. The setting is reset (step S3).

Therefore, the possible value of the scanning counter C is any one of 0, 1, 2, and 3, and the value is 0.
In this case, the presence / absence of an operation signal for the window drive motor MR0 is determined by the window opening / closing process in this cycle, and if the value is 1, the presence / absence of an operation signal for the window drive motor MR1 is determined. In the same manner as described above, the presence or absence of an operation signal for the window drive motor MR (C) is determined based on the current value of the scanning counter C. As a result, the presence or absence of an operation signal for each window drive motor MR (C) is detected every four weeks, but compared with the operation speed of the main switch SW0 and the power window switches PSW1 to PSW3 by the driver or the occupant. , CPU3
Is sufficiently fast so that the detection delay of four cycles does not cause any problem.

Next, based on the current value of the scanning counter C, the CPU 3 operates the driver to operate the main switch SW0 to move the window drive motor MR (C).
It is determined whether or not an operation signal for is output (step S4).

If the operation signal for the window drive motor MR (C) is not output from the main switch SW0, the CPU 3 further determines whether or not the current value of the scanning counter C is 0 (step S).
5).

Here, if the current value of the scanning counter C is 0, it means that the window drive motor which is the target of the switch operation detection at this time is MR0, that is, the window drive motor of the driver's door DR0. I do. A switch capable of operating the window drive motor MR0 is a main switch SW0 provided in the driver's seat.
And the current value of the scanning counter C is 0
In this case, there is no point in executing the processing of steps S6 to S11. Therefore, step S5
Is true, and it is clear that the window drive motor that is the target of the switch operation detection at this time is MR0, the CPU 3 does not execute the processing of steps S6 to S11.

On the other hand, if the result of the determination in step S5 is false, that is, if the current value of the scanning counter C is one of 1, 2, and 3, the main switch S
Even when there is no operation signal from W0, C = 1,
The operation of the window drive motor MR (C), which is the current detection target of the switch operation, may become possible by the operation of the other power window switches PSW (C) in a few cases. It is determined whether there is an operation signal from power window switch PSW (C) (step S6).

The power window switch PSW
When the operation signal from (C) is detected and the determination result of step S6 becomes true, the CPU 3 further sets the lock state detection switch DSW (C) corresponding to the power window switch PSW (C). It is determined whether or not the door is ON, that is, whether or not the door is locked by the child lock switch MSW (C) of the door to which the window drive motor MR (C) is attached (step S7).

If the result of the determination in step S7 is false and it is clear that the door on which the window drive motor MR (C), which is the object of the switch operation detection, is not locked, is determined. The CPU 3 receives the operation signal from the power window switch PSW (C) detected in the processing of step S6 in the current processing cycle,
Whether it is a forward rotation signal (UP signal) for closing the window or a reverse rotation signal (DOW) for opening the window
N signal) (step S8).

If this signal is a normal rotation signal, C
The PU 3 outputs a forward rotation command to the window drive motor MR (C) to be operated (step S1).
0), if it is a reverse rotation signal, this window drive motor M
A reverse rotation command is output to R (C) (step S9), the motor operation flag F (C) is set, and the start of the operation of the window drive motor MR (C) is stored (step S11).

On the other hand, the result of determination in step S7 becomes true, and the window drive motor MR to be operated is
The door equipped with (C) is a child lock switch MS
If it is clear that the lock is achieved by W (C), the CPU 3 as the window operation restricting unit disables the processing of steps S8 to S11 and is locked by the child lock switch MSW (C). Drive motor MR mounted on a closed door
The operation of (C) is prohibited.

However, in the discriminating process of step S4, the main switch SW0 as the forced open / close switch is switched to C =
0, 1, 2 or 3 window drive motor MR (C)
When the operation signal to the power window switch PSW (C) and the child lock switch MSW (C) is ON / OFF as a result of the determination processing of steps S5 to S7 not being executed when the operation signal is detected. Regardless,
The process of step S10 or step S9 is executed, the window drive motor MR (C) is driven in the reverse direction, and the power window is operated by the driver's intention regardless of the locked state of the door.

As described above, as a result of the scanning counter C being cyclically incremented in the range of 0 to 3, C = 0, 1, 2 while this window opening / closing process is repeatedly performed up to four times. Or any of the three power window switches PSW (C) or the upper right, lower right, lower left, or upper left operating units of the corresponding main switch SW0 is reliably detected. It is possible.

When a plurality of power window switches PSW (C) of C = 0, 1, 2, or 3 are simultaneously operated, or a plurality of window drive motors are simultaneously operated by a plurality of operation units of a main switch SW0. Are operated at the same time, the window drive motor MR (C) of C = 0, 1, 2, or 3 designated by each switch is driven substantially simultaneously with a delay of up to four cycles. In such a case, when the drive of each window drive motor MR (C) is started, C corresponding to the window drive motor MR (C) is started.
= 0, 1, 2 or 3 motor operation flags F (C) are sequentially and independently set.

Next, each window drive motor MR (C)
Will be described.

First, in the window opening / closing process of FIG. 3 that is repeatedly executed at predetermined intervals, if the determination result of step S4 is false and the determination result of step S5 becomes true, the CPU 3 sets the motor operation flag to OFF. It is determined whether or not F0 is set, that is, whether the window drive motor MR0 has been driven forward or reverse until the immediately preceding processing cycle, or whether the window drive motor MR0 has not been driven from the beginning ( Step S1
2).

Here, if the motor operation flag F0 is not set and the determination result of step S12 is false, it means that the window drive motor MR0 has not been operated from the beginning, and the CPU 3 Then, the switching operation on the window drive motor MR0 is not performed, and the window opening / closing process in the cycle is ended as it is.

On the other hand, if the motor operation flag F0 is set and the result of the determination in step S12 is true, the window drive motor MR0 has been driven forward or reverse until the immediately preceding processing cycle, and Means that the termination of the operation of the main switch SW0 for driving the window drive motor MR0 is detected in the determination processing of step S4 in the processing cycle of
Stops the operation of the window drive motor MR0 (step S13), resets the motor operation state storage flag F0, stores the stoppage of the operation of the window drive motor MR0 (step S14), and ends the window opening / closing process in this cycle. Will do.

In the window opening / closing process shown in FIG. 3 which is repeatedly executed at predetermined intervals, the results of the determination in steps S4 and S5 are both false, and when the result of the determination in step S6 is false, the CPU 3 Is to determine whether the motor operation state storage flag F (C) for storing the operation state of the window drive motor MR (C) is set, that is, whether the window drive motor MR (C) is normal or reverse until the immediately preceding processing cycle. Is determined (step S12).

If the motor operation flag F (C) is not set and the determination result in the step S12 is false, it means that the window drive motor MR (C) has not been operated from the beginning. CPU3
The switching operation on the window drive motor MR (C) is not performed, and the window opening / closing process in this cycle ends as it is.

On the other hand, when the motor operation flag F (C) is set and the result of the determination in step S12 is true, the window drive motor MR
(C) is driven forward or reverse, and the operation of the main switch SW0 for driving the window drive motor MR (C) is terminated or the power is turned off in the discrimination processing of step S4 or step S6 in the current processing cycle. This means that the termination of the operation of the window switch PSW (C) is detected, so the CPU 3 stops the operation of the window drive motor MR (C) (Step S).
13) The motor operation state storage flag F (C) is reset, the operation stop of the window drive motor MR (C) is stored (step S14), and the window opening / closing process in this cycle is ended.

The window drive motor MR0 is driven only by operating the main switch SW0.
The 1, 2, and 3 window drive motors MR (C) can be driven by either the main switch SW0 or the power window switch PSW (C) with C = 1, 2, or 3, but detects the end of the switch operation. The stop processing (the processing of steps S12 to S14) upon completion is exactly the same.

As described above, the value of the scanning counter C is cyclically incremented in each cycle within the range of 0 to 3, and as a result, while the window opening / closing process is repeatedly performed up to four times, C = 0. , 1, 2 or 3, when the operation of the power window switch PSW (C) is stopped, this can be reliably detected and the driving of the corresponding window drive motor MR (C) can be stopped. It is possible.

As is apparent from the above description, the window drive motor MR (C) whose operation has been commanded by operating the main switch SW0 or the power window switch PSW (C) has a delay of at most four cycles or less. The operation starts within the range, continues to operate while the main switch SW0 or the power window switch PSW (C) is continuously operated, and is detected after the termination of the operation of the main switch SW0 or the power window switch PSW (C) is detected. The operation is stopped within a delay of at most four cycles. As already mentioned, CPU3
Is very short, and a delay of four cycles does not pose a practical problem.

Further, a plurality of power window switches P
By operating the SW (C) or the main switch SW0, it is also possible to simultaneously designate the forward or reverse rotation of the plurality of window drive motors MR (C) to simultaneously drive the plurality of window drive motors MR (C). .

Then, the power window switch PSW
When the window drive motor MR (C) is operated by (C), the child lock switch MSW (C) of the door to which the window drive motor MR (C) is attached.
Must be unlocked, and when the window drive motor MR (C) is operated by the main switch SW0, the child lock switch of the door to which the window drive motor MR (C) is mounted is used. Regardless of whether MSW (C) is locked,
The power window can be opened and closed by freely rotating the window drive motor MR (C) in the forward and reverse directions according to the driver's intention.

As described above, as one embodiment, the driver's seat door DR
An example in which a child lock switch and a lock state detection switch are provided for all doors DR1, DR2, and DR3 except for 0 is described. However, in an automobile having a structure in which a child can only be placed in the rear seat, the door DR3 for the passenger seat is provided. The child lock switch and the lock state detection switch may be omitted. In that case, steps S6 and S7 in the window opening / closing process shown in FIG.
A determination process for determining whether or not the value of the scanning counter C is 3 is inserted between the steps and the determination process of step S7 is skipped only when the value of the scanning counter C is 3 What is necessary is just to shift to the discrimination process of S8.

In addition, in place of software control using the CPU 3, an electric control circuit or mechanical interlocking means is used to inhibit the operation of the power window of the door on which the child lock switch is operated. It is also technically possible.

The simplest configuration for achieving the same purpose by using an electric control circuit is that the child lock switches MSW1 to MSW3 are connected between the power window switches PSW1 to PSW3 and the ground portion of the vehicle body 2. Is connected in series with an electric switch that opens / closes in conjunction with ON / OFF of the switch. By applying such a configuration,
Since the electric switch of the door for which the child lock switch is turned on is forcibly opened, even if the corresponding power window switch is operated, both the UP-side input circuit and the DOWN-side input circuit are in the vehicle body. 2
, And the operation of the window drive motor of the door for which the child lock switch is turned ON is automatically prohibited.

[0049]

According to the child proof device for a power window of the present invention, a power window switch for opening and closing a power window and a child lock switch are provided in one-to-one correspondence with at least each door of a rear seat. Only the opening and closing operation of the power window of the door with the lock switch set to ON is selectively prohibited, so carelessness is taken in the seat where the child is boarding, that is, the seat where the child lock switch is set to ON. The opening and closing operation of the power window can be reliably prevented. Also, the seat where the adult sat, that is,
Since the opening and closing operation of the power window in a seat where the child lock switch is not set to ON is freely allowed, the problem that the opening and closing operation of the power window by an adult is excessively limited is also solved.

In addition, the child lock switch is turned on.
Since the forced open / close switch for opening / closing the power window regardless of the / OFF state was provided near the driver's seat, the child lock switch was set to ON while the power window was moved to an improper open / close position. Even in such a case, the power window can be moved to an appropriate open / close position by the intention of the driver or another adult.

[Brief description of the drawings]

FIG. 1 is a functional block diagram schematically showing a configuration of a child proof device for a power window according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing an overall arrangement of components related to the power window child proof device of the present embodiment, including components of a child lock switch and a power window.

FIG. 3 is a flowchart showing an outline of a window opening / closing process repeatedly executed at predetermined intervals by a CPU of the child proof device for a power window.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Child proof device for power windows 2 Vehicle body 3 CPU (window operation restricting means) DR0 Driver's seat door DR1 Rear seat right door DR2 Rear seat left door DR3 Passenger's door MSW1 to MSW3 Child lock switch DSW1 to DSW3 Lock state detection switch MR0 ~ MR3 Window drive motor SW0 Main switch (Forced open / close switch) PSW1-PSW3 Power window switch

Claims (2)

[Claims] At least one of a rear seat door and a child lock switch for restricting opening / closing operation of a door from the inside of an automobile and a power window switch for opening / closing a power window are provided in one-to-one correspondence. And the child lock switch is
A child proof device for a power window, further comprising a window operation restricting means for prohibiting an opening / closing operation of a power window by a power window switch corresponding to the child lock switch only when N is set. 2. An ON / OFF state of the child lock switch.
The child proof device for a power window according to claim 1, wherein a forced open / close switch for opening / closing the power window regardless of an OFF state is provided near a driver's seat.