Power window system

• US 20060038519A1
• Filed: 06/06/2005
• Published: 02/23/2006
• Est. Priority Date: 08/17/2004
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Yamamoto, Susumu, Nakagawa, Satoshi, Iwasaki, Katsuyuki, Mochizuki, Yasuyuki, Maejima, Yoshimitsu
• Granted Patent: US 7,268,506 B2
• Time in Patent Office: Days
• US Class Current: 318/280
• CPC Class Codes: E05F 15/41 Detection by monitoring transmitted force or torque E05F15/48 takes precedence; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
• CPC Class Codes: E05F 15/695 Control circuits therefor
• CPC Class Codes: E05Y 2900/55 Windows
• CPC Class Codes: H02H 7/0816 concerning the starting sequence, e.g. limiting the number of starts per time unit, monitoring speed during starting
• CPC Class Codes: H02H 7/0851 for motors actuating a movable member between two end positions, e.g. detecting an end position or obstruction by overload signal

Abstract

The power window system moves a window glass in opening and closing directions in response to operation of an opening and closing instruction switch. The power window system includes a measurement device for obtaining an open degree of the window glass and a control device for controlling movement of the window glass in response to operation of the switch. The control device moves the window glass in the closing direction when an open degree obtained by the measurement device is not less than a predetermined degree and in the opening direction when the open degree is less than the predetermined degree.

Claims

1. A power window system of a motor vehicle for moving a window glass in opening and closing directions in response to operation of an opening and closing instruction switch to automatically move the window glass upward or downward, the system comprising:

a measurement device for obtaining an open degree of the window glass, and

a control device for controlling movement of the window glass in response to operation of the switch,

wherein the control device moves the window glass in the closing direction when an open degree obtained by the measurement device is not less than a predetermined degree and in the opening direction when the open degree is less than the predetermined degree, and the predetermined degree corresponds to an intermediate position between a closed position and a fully open position with regard to the window glass.

3. The power window system recited in claim 1, further comprising:

a remote control unit having the switch and a radio device for transmitting a radio signal corresponding to the operation of the switch, and

a driving unit having the measurement device, the control device, and a receiver device for receiving the radio signal.

4. The power window system recited in claim 3, wherein the switch is a single switch having an operation portion movable only in one direction.

5. The power window system recited in claim 1, further comprising an electric motor for moving the window glass, wherein the predetermined open degree corresponds to a value obtained by adding an initial movement amount of the window glass with a diameter of an intervening object, the initial movement amount corresponding to a period in which an over current is generated in the motor at starting of the motor.

6. The power window system recited in claim 5, wherein the intervening object is a finger, a hand or an arm of a person.

2. (canceled)