JP3374446B2 - 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 vehicle power window, and more particularly to a power window control device capable of finely controlling opening and closing.

[0002]

2. Description of the Related Art A power window for electrically opening and closing a window glass of a vehicle is for raising and lowering the window glass by connecting and disconnecting a power source to and from a motor. However, a motor with a large generated torque is used so that the power window can operate without any problems, especially when it is closed during freezing in winter or under high load during high-speed traveling. However, regarding the use of such a motor, during normal use (when not under heavy load use) the motor rotation rises and the rise / fall speed of the windshield becomes faster, which provides a fine opening / closing controllability when raising / lowering the glass slightly. It has the drawback of being bad. In addition, high torque is generated at the time of opening and closing the opening and closing, and high-speed start and sudden stop are performed, which causes an "attractive" noise.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a power window control device which improves fine opening / closing control and prevents annoying "rattle" sound.

[0004]

[Means for Solving the Problems] First to achieve the above object
Power window control device of the invention, the opening and closing operation command from at least the power window switch, a vehicle speed sensor
Vehicle speed detection signal and steering wheel angle from steering wheel angle sensor
The detection signal is input and the vehicle speed and steering wheel angle
According to the estimated turning, acceleration, deceleration, and constant speed driving conditions
Select the speed control pattern map to open / close
By inputting a command, the selected speed control pattern
The controller is characterized by having a controller for controlling the speed of the power window motor by changing the applied voltage of the power window motor in accordance with the setting. The power of the second invention
The window controller must be at least a power window switch.
Open / close operation command from the switch and the vehicle speed detection signal from the vehicle speed sensor.
No. and steering wheel angle detection signal from steering wheel angle sensor, or
Are the signals from these detection signals and the glass position sensor.
The vehicle speed and the steering wheel.
Cornering estimated acceleration, acceleration, deceleration, constant speed driving situation,
Or, depending on this driving situation and the glass position, the speed
Select the control pattern map and input the opening / closing operation command.
Force will follow this selected speed control pattern map.
Power by changing the applied voltage of the power window motor.
-Has a controller that controls the speed of the wind motor
It is characterized by The power window of the third invention
The control device is the power window control device of the first or second invention.
In location power window control device, the power Wynn
Window open / closed when the switch is on for a certain period of time
Work can be switched from manual mode to auto mode.
And are characterized.

Micro controllability is improved by interposing a controller for applying an applied voltage suitable for the driving condition and environment to the motor and eliminating sudden start-stop due to high torque depending on the driving condition. It also led to the prevention of rattling noise.

[0006]

EXAMPLES Examples of the present invention will now be described with reference to FIGS. 1, with the controller 1 as the center, the power window switch 2a, the vehicle speed sensor 2b, the steering wheel angle sensor 2c, and the glass position sensor 2 on the input side.
d is present, and the power window motor 3 is present on the output side. Among these, the opening / closing operation command is input from the power-in switch 2a to the controller 1, and the controller 1
In the power window operation input circuit 1a, the operation input is determined, and in the auto / manual determination circuit 1b, for example,
Switch from manual mode to auto mode by switch input for 1.5 seconds or more than 2 seconds. In this case, the manual mode refers to the window opening / closing operation that stops when the switch is operated and the operation is released.The auto mode is the window that is fully opened or closed when the auto mode switch is turned on or the manual switch is operated for a certain period of time. Opening / closing operation.

The controller 1 includes a vehicle speed sensor 2
The vehicle speed and the steering wheel angle are input from the steering wheel angle sensor 2c and the steering wheel angle sensor 2c, and the determination circuit 1c determines the traveling condition such as acceleration or deceleration, turning or straight traveling. Further, the controller 1 is provided with an arithmetic circuit 1d for calculating the position and speed of the power window glass by using the position sensor of the power window glass, for example, the rotation sensor of the glass drive motor 3, as an input. As a result, when the power window switch 2a is operated, the current of the motor 3 is controlled by the energization control circuit 1e that selects the speed control pattern and controls the voltage of the FET according to the vehicle speed, the turning traveling condition, or the window glass position. To control.

FIG. 2 is an example of a flow chart for selecting a speed map according to the traveling situation. When the flow starts, the running situation is estimated by the running situation determination circuit 1c in response to the input signals from the steering wheel angle sensor 2c and the vehicle speed sensor 2b. As a result of this estimation, ranking is performed in the order of turning, acceleration, deceleration, and constant speed. Map 1 is selected during turning, map 2 is selected during acceleration, map 3 is selected during deceleration, and map 4 is selected during constant speed. To do. In this case, FIG.
As shown in (1), the turning and acceleration patterns may be the same map. Then, when the power window switch 2a is turned on, the energization control circuit 1e is controlled according to the speed map. Whether the power window switch 2a is on for a predetermined time or longer is determined to determine whether the operation is automatic operation or manual operation. Based on this, power is supplied.

FIG. 3 is a speed control pattern when attention is paid to a running condition, and shows (1) a pattern during acceleration / turning, (2) a pattern during deceleration, and (3) a pattern during steady running. Of these, during acceleration and turning, rapid opening and closing are required, so the speed is close to the conventional speed pattern shown by the dotted line, and the speed gradually decreases near the end of the pattern. Further, at the time of deceleration, the opening / closing speed is low as compared with the conventional speed pattern, and the speed change at the start and end is set gently. In steady-state running, the opening and closing constant speed is faster than the conventional speed pattern, and the change in speed at the start and end is a gentle pattern. In each drawing of FIG. 3, the zero point at time t indicates the time when the power window switch 2a is turned on, and the glass opening / closing position at that time is not only in the case of fully open or fully closed but also in the case of various open states such as half open. Is also included. Further, another speed control pattern may be provided depending on how the glass is opened. In FIG. 3, the solid line represents the state of the auto mode from the start of the opening / closing operation, that is, the example of the pattern in which the opening / closing control is performed by the selection of the switch of the auto mode, but even if the selection switch of the auto mode and the manual mode is not provided. It is possible to switch from manual to auto by the judgment of the auto / manual judgment circuit 1b shown in FIG. 1, and the broken lines up to the solid line shown in FIGS. It shows the state. The opening / closing start speed is set slowly even in the manual mode in which the auto mode is not reached or is reached. In the example of FIG. 3 (1), the manual mode and the automatic mode overlap, and therefore the description of the broken line is omitted.

In the above-mentioned example, the control focusing on the running condition is described. Further, as described above, not only the speed pattern is changed according to the glass position, but for example, a temperature sensor input is put in the controller and it is used in winter. Various controls such as operation control of the motor 3 depending on the freezing condition can be performed.

[0011]

As described above, the speed control of the power window motor is enabled by the controller, the control performance at the start of opening and closing is improved, the so-called "rattle" sound is eliminated, and the movement is smooth and suitable for human senses. It can be opened and closed.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart of an embodiment.

[Fig. 3] Speed control pattern diagram

[Explanation of symbols]

1 controller 2a power window switch 2b Vehicle speed sensor 2c Hand angle sensor 2d glass position sensor 3 motor

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Claims (3)

(57) [Claims] [Claim 1] from at least a power window switch
The opening / closing operation command, the vehicle speed detection signal from the vehicle speed sensor, and the steering wheel angle detection signal from the steering wheel angle sensor are input, and the turning estimated by the vehicle speed and the steering wheel angle,
Speed control pattern according to acceleration, deceleration and constant speed driving conditions
Select the map of the
The applied voltage of the power window motor is changed according to the map of the selected speed control pattern to change the power window.
JP further comprising a controller controlling the speed of the motor
A power window control device. From 2. The method of claim 1, wherein at least a power window switch
Open / close operation command, the vehicle speed detection signal from the vehicle speed sensor and the steering wheel angle detection signal from the steering wheel angle sensor , or
Glass position from these detection signals and glass position sensor
The detection signal is input and the vehicle speed and steering wheel angle
Estimated turning, acceleration, deceleration, and running conditions at constant speed, or
Depending on the driving situation and the glass position, the speed control
Select the turn map and input the opening / closing operation command.
Ri, by changing the voltage applied to the path <br/> word window motor according to the map of the selected speed control pattern Pawaui
Having a controller for controlling the speed of Ndomota
Power window controller characterized by . 3. The power window according to claim 1 or 2.
In the control device, If the power window switch is on for a certain time
The window opening / closing operation automatically from manual mode
Power window control characterized by shifting to mode
apparatus.