JPS6023575A - Power window system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a power window system that automatically opens and closes a window glass in an automobile or the like.

BACKGROUND ART Conventionally, in this type of power window system, as shown in Fig. 1, the controller l is operated by operating the hand switch SW, which returns to the neutral position when the hand is released, to the open or close side. By driving the window motor M in the forward or reverse direction, the windshield can be opened and closed automatically.

However, in such conventional power window systems, the amount of opening and closing of the windshield is proportional to the operating time of the hand switch SW, and therefore, if you want to open and close the windshield only a little, you need to turn the hand switch SW. The switch must be operated instantaneously, and it is difficult to make minute adjustments to the opening of the windshield by such a switch operation, and the switch operation at that time is complicated, such as having to be careful when operating the switch. Purpose The present invention has been made in consideration of the above points, and has the purpose of providing a function of automatically opening and closing a predetermined amount of a window glass, and simplifying the switch operation at that time. The present invention provides a power window system designed to achieve the following.

! animal An embodiment of the present invention will be described in detail below.

In the power window system according to the present invention, the second
As shown in the figure, by operating the hand switch SW, the window motor M is driven in the forward and reverse directions via the controller 1 to open the window glass.

In the method 5 for causing the windshield to close, it is detected whether the hand switch SW has been operated for a certain period of time or more, and the windshield is caused to perform a normal opening/closing operation or a one-step opening/closing operation. a judgment circuit 2 that makes such a judgment; and a judgment circuit 2 that applies a one-step driving current of a constant pulse width to the controller 1 in accordance with the judgment output of the one-step operation, and causes the controller 1 to open and close the windshield by a preset one-step amount. A step drive circuit 3 is provided. Note that the one-step drive circuit 3 uses, for example, the judgment output of one-step opening or automatic operation given from the judgment circuit 2, and sends a pulse signal with a preset pulse width to the opening or closing direction of the windshield. It consists of a monostable multivibrator which is given to the controller 1 as a drive command.

With this configuration, when the hand switch SW is closed to the open side (closed side), a switch signal corresponding to the operation is given to the judgment circuit 2, and the judgment circuit 2 is thereby It is detected whether the switch operation time at that time is shorter than or longer than 8 according to a preset reference time, and if it is short, the window glass is opened (closed) in one step. The judgment output is given to the one-step drive circuit 3, and if the length is long, the judgment output is given directly to the controller 1 to perform a normal opening (closing) operation. At this time, the one-step drive circuit 3, which has been given the one-step operation judgment output, outputs a drive command in the opening (closing) direction of the window glass with a preset pulse width to the controller 1 accordingly. . Thereby, the controller 1 drives the window motor M in forward (reverse) rotation for a certain period of time according to the pulse width.
The controller 1, which opens (closes) the window glass by a predetermined amount of one step, and which is directly given the normal operation judgment output, controls the forward (reverse) direction of the window motor M according to the switch operation time at that time. A rotating drive is provided to cause the win to continuously open (close) the glass.

FIG. 3 shows the timing of each part's operation.

In this example, when the operating time of the hand switch SW is shorter than the reference time TB, the judgment circuit 2 provides a judgment output of the step operation to the one-step drive circuit 3 in response to the falling edge of the switch signal. By triggering , the window motor M is driven in one step by K for a certain period of time or more as described above. Further, when the operation time of the hand switch SW is longer than the reference time 18, the judgment circuit 2 gives a judgment output of normal operation to the controller 1 for the time period during which the hand switch SW has been operated for the reference time 18 or more, and the window motor is operated only for that time. It is arranged to cause M to be driven continuously. In addition, in FIG. 3, part A shows the time of one-step operation, and part B shows the time of normal operation.

Therefore, if the pulse width of the output signal in the one-step operation circuit 3 is set in advance to meet the minute opening/closing amount of the windshield, which is difficult to adjust by operating the hand switch SW, the short time T, By the above operation, the window glass can be automatically opened/closed in one minute preset step regardless of the operation time. Also, without providing any separate hand switch, the same hand switch SW is used for reference time 1.
If the switch is operated 8 or more, the system is automatically switched to the normal opening/closing operation mode, and the window glass can be opened and closed at will according to the switch operation time.

Further, in the present invention, the one-step operation circuit 3 counts and holds the number of consecutive repeated operations of the hand switch SW within each reference time Ts, and sends a one-step drive command to the controller 1 at a constant cycle by the counted number. It is also possible to easily provide various functions that can be sequentially applied. Specifically, the number of operations of the hand switch SW can be counted by a counter, and the output of the counter can be used to sequentially trigger the monostable multivibrator. For example, when you want to fully open the windshield, you no longer have to keep operating the hand switch SW2 to the open side until the windshield opens to the specified position, and you have to repeatedly operate the hand switch SW2 for one-step operation several times. This makes it possible to effectively shorten the switch operation time.

In addition, FIG. 4 shows a specific example of the configuration of the power window system according to the invention, in which the open/close drive signal from the normal operation that is directly determined by the judgment circuit 2 or the one-step drive signal that is also output by the one-step drive circuit 3 is shown. Relay RYI for forward rotation or relay RY2 for reverse rotation in controller 1 is energized as appropriate in accordance with the open/close drive signal caused by the operation, and during this time the relay contact trips to the a contact side, causing forward and reverse rotation in linear motor M. A power supply circuit is now formed.

As described above, in the power window system according to the present invention, the system can be controlled by making the switch operation for closing one hand switch to the open side or the close side be performed within a reference time or for longer than the reference time. Switching between step operation mode and normal operation mode can be done automatically, and minute windshield opening/closing operation and continuous warm operation can be easily performed with a simple switch operation. It has the excellent advantage of being able to

[Brief explanation of drawings]

Fig. 1 is a block diagram showing a conventional power window system, Fig. 2 is a block diagram showing an embodiment of the power window system according to the present invention, and Fig. 3 is a time diagram showing the timing of the operation of each part in the same embodiment. The chart and FIG. 4 are electrical wiring diagrams showing a specific example of the circuit configuration of the power window system according to the present invention. 1... Controller 2... Judgment circuit 3... One step drive circuit SW... Hand switch M...
・Wind motor representative Kiyoshi Torii

Claims (1)

[Claims] By closing the switch to the open/measurement or close side, a controller is included to drive the window motor in the forward and reverse directions to open the window glass. The windshield is closed by a means for detecting that the operation time of the switch is within a preset reference time, and in response to the detection output, the windshield is opened by a preset one step. A power window system further comprising: means for supplying a command signal to the controller to drive the window closed.