KR20000024694A - Control method for closing/opening of power window - Google Patents

Abstract

PURPOSE: A control method is provided to descend or hold a power window according to the existence of a passenger in case of detection of over-current while automatically closing the power window. CONSTITUTION: An ordinary up and down switch is used as an automatic closing switch(100) of a power window for having two steps for up and down. A sensor(110) of a passenger is installed near the riding position of a passenger to generate and output the signal of the passenger. A driving motor(150) of the power window is driven to a right and a reverse directions by the driving signal of motor inputted from a motor controller(130) of the power window. And a detector(140) of over-current generates the detection signal of over-current due to the difference between a reference voltage and a voltage falling of both ends of a detection resistance of over-current for outputting the signal to the motor controller. Therefore, when a certain part of a passenger is caught in the window, the motor controller of the power window converts the state of the window closed to an opening state by signals inputted from the detector of over-current and the sensor of a passenger.

Description

Power window closing and opening control method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window drive control apparatus for automobiles, and more particularly, to a method for controlling power window closing and opening for coping with the presence of occupants and the possibility of unauthorized infringement by third parties.

Today's cars are equipped with a power window drive control as part of enhancing the convenience of drivers and passengers. In such a power window drive control device, the window is designed to be closed or opened by the drive of the electric motor. If the occupant or foreign object is inserted between the window frame and the window glass during the automatic closing of the power window, the closed window is held or opened for the safety of the occupant or to protect the window glass. It is common to switch. The general power window drive control apparatus employs an overcurrent detection method to detect whether an occupant or a foreign object is inserted between the window frame and the window glass.

However, since the general power window driving control device keeps the closed window only in the holding state when the overcurrent is detected, it can be a big problem for safety, especially if a part of the child's body is inserted between the window frame and the glass. On the other hand, in the power window drive control apparatus for switching the closed operation window to the open state when the overcurrent is detected, a third party's body part may intrude into the vehicle and threaten the occupant.

Accordingly, an object of the present invention is to provide a power window closing and opening control method capable of holding or lowering a power window according to the presence of a passenger when an overcurrent is detected during automatic power window closing.

The present invention for achieving the above object is to detect the occupant of the occupant using a passenger detection sensor, the power window closing and opening of the power window device of the vehicle for detecting the closed or open state of the window using the power window position sensor In the control method,

A first step of inspecting whether there is an overcurrent detection from the window driving motor during window auto closing;

A second process of checking whether a window closing signal is input from the position sensor when an overcurrent is detected;

A third step of determining whether a passenger is present at a boarding position of the window side where an overcurrent is detected when the window closing signal is not input;

And a fourth process of converting the window in the closing operation in the presence of the occupant to the open state and holding the window in the closing operation in the absence of the occupant.

1 is a block diagram of a power window drive control apparatus according to an embodiment of the present invention.

2 is a control flow diagram for controlling the power window opening and closing operation according to an embodiment of the present invention.

Hereinafter, an operation according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a power window driving control apparatus according to an embodiment of the present invention, Figure 2 is a control flow diagram for controlling the power window opening and closing operation according to an embodiment of the present invention. .

First, referring to FIG. 1, the power window auto closing switch 100 is a general up / down switch and is configured such that each of up / down is provided in two stages. That is, it has a structure for selecting manual window up, automatic window up, manual window down, automatic window down, and the like. In the following description, it is assumed that the power window auto close switch 100 is for an automatic window up operation, and it is assumed that a window auto close signal is generated by a passenger's manipulation. On the other hand, the passenger detection sensor 110 is installed in the boarding position of the occupant or near the boarding position to generate and output a passenger detection signal. As the passenger detection sensor 110, there is a weight detection sensor that can be attached to each passenger seat of the car seat and used as an infrared sensor, which is installed on the inside of each door to detect the presence or absence of a passenger, for example. Can be.

The power window home position sensor 120 is mounted on a window guide installed at the top of the window frame or inside the door to generate and output a detection signal according to the closing degree of the power window. The power window motor controller 130 includes a memory in which a control program as shown in FIG. 2 is stored, and controls the window up / down according to the provided control program. For example, the power window motor controller 130 generates and outputs a motor driving signal for driving the power window driving motor 150 in response to the window auto closing signal input. At this time, it is assumed that if the motor drive signal is a forward drive signal, the window is operated in the closed state by the motor drive, and if the window drive signal is the reverse drive signal, the window is lowered, i.

The power window driving motor 150 is driven forward and backward by the motor drive signal input from the power window motor controller 130. In addition, the overcurrent detection unit 140 generates an overcurrent detection signal according to a difference between the voltage drop across the overcurrent detection resistor and the reference voltage, and outputs the overcurrent detection signal to the power window motor controller 130.

Hereinafter, the operation of the power window driving control apparatus having the above-described configuration will be described in detail with reference to FIG. 2.

First, when the occupant operates the power window auto closing switch 100, a window auto closing signal is generated accordingly and input to the power window motor controller 130. When the window auto closing signal is input in step 200, the power window motor controller 130 proceeds to step 210 and outputs a motor driving signal for up-windowing the window. As the power window driving motor 150 is driven in the forward direction, the window operates in the closed state. When the overcurrent detection signal is input in step 220 during the window closing operation, the power window motor control unit 130 proceeds to step 230 and checks whether the window closing is completed through the power window home position sensor 120. If the result of the inspection is that the window is closed, the power window control process according to the embodiment of the present invention ends, but if the window is not closed, the process proceeds to step 240. In operation 240, the power window motor controller 130 determines whether the passenger is present on the window side where the overcurrent is detected through the passenger sensor 110. In operation 250 and 260, the power window driving motor 150 is driven in the reverse direction or the driving of the motor 150 is stopped in order to change the window in the closing operation to the open state.

Therefore, when a part of the occupant's body is sandwiched between the window frame and the window glass, the power window motor controller 130 opens the closed window by signals input from the overcurrent detector 140 and the passenger sensor 110. In the case of switching to the state and the passenger detection signal is not input from the passenger detection sensor 110, it is determined that the third party is intruded and thereby holding the window in the closing operation.

As described above, the present invention has the effect of preventing the safety accident as well as preventing unauthorized intrusion of a third party by holding or closing the window in the closed operation according to the presence or absence of the occupant.

Claims (1)

In the power window closing and opening control method of the power window device of the vehicle for detecting the occupant of the occupant using a passenger detection sensor, and detecting the closed or open state of the window using the power window position sensor, A first step of inspecting whether there is an overcurrent detection from the window driving motor during window auto closing; A second process of checking whether a window closing signal is input from the position sensor when an overcurrent is detected; A third step of determining whether a passenger is present at a boarding position of a window side where an overcurrent is detected when no window closing signal is input; And a fourth process of switching the window in the closing operation in the presence of the occupant to the open state and holding the window in the closing operation in the absence of the occupant.