Power window apparatus for vehicle

• US 20030052631A1
• Filed: 08/15/2002
• Published: 03/20/2003
• Est. Priority Date: 09/14/2001
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Kusunoki, Kiichi
• Granted Patent: US 6,756,755 B2
• Time in Patent Office: Days
• US Class Current: 318/285
• CPC Class Codes: E05F 15/40 Safety devices, e.g. detection of obstructions or end positions
• CPC Class Codes: E05F 15/695 Control circuits therefor
• CPC Class Codes: E05Y 2900/55 Windows

Abstract

A power window apparatus for a vehicle is comprised of an operation switch which includes a raising contact for outputting a window raising command when set at on-state and a lowering contact for outputting a window lowering command when set at on-state, and a controller which is arranged to execute a manual operation during a time period from a start moment at which the operation switch starts outputting one of the window raising and lowering commands to a first moment at which a first predetermined time period elapses from the start moment, to execute an automatic operation during a time period from the first moment to a second moment at which a second predetermined time period elapses from the start moment, and to execute the manual operation from the second moment.

Claims

1. A power window apparatus for a vehicle, comprising:

a drive motor for raising and lowering a window glass;

an operation switch comprising a raising contact which outputs a window raising command when the raising contact is set at on-state and a lowering contact which outputs a window lowering command when the lowering contact is set at on-state; and

a controller coupled to the drive motor and the operation switch, the controller being arranged,

to execute a manual operation during a time period from a start moment at which the operation switch starts outputting one of the window raising and lowering commands to a first moment at which a first predetermined time period elapses from the start moment,

to execute an automatic operation during a time period from the first moment to a second moment at which a second predetermined time period elapses from the start moment, and

to execute the manual operation from the second moment.

2. The power window apparatus as claimed in claim 1, further comprising a load detecting device which detects a load applied to the drive motor, the controller stopping a window raising operation of the drive motor when the load detector detects that the load applied to the drive motor is greater than a predetermined load at a moment before the second moment.

3. The power window apparatus as claimed in claim 2, wherein the controller starts a window lowering operation of the drive motor when the operation switch stops outputting the window raising command before the second moment.

4. The power window apparatus as claimed in claim 2, wherein the controller restarts the window raising operation when the operation switch continues outputting the window raising command after the second moment.

5. The power window apparatus as claimed in claim 4, wherein the controller stops the window raising operation when the operation switch stops outputting the window raising command.

6. The power window apparatus as claimed in claim 1, wherein the manual operation includes a window raising operation of raising the window glass for a time period during which the raising contact is set at on-state and a window lowering operation of lower the window glass for a time period during which the lowering contact is set at on state, and the automatic operation includes a one-touch automatic operation by which the window glass is raised to a full close state or lowered to a full open state.

7. The power window apparatus as claimed in claim 1, further comprising a raising drive section and a lower drive section through which the controller controls the operation of the drive motor.

8. A method of controlling a drive motor for raising and lowering a window glass, comprising:

executing a manual operation during a time period from a start moment at which an operation switch outputs one of a window raising and lowering commands to a first moment at which a first predetermined time period has elapsed from the start moment;

executing an automatic operation during a time period from the first moment to a second moment at which a second predetermined time period has elapsed from the start moment, and

executing the manual operation from the second moment.

9. A power window apparatus for vehicle, comprising:

driving means for raising and lowering a window glass;

switch means for outputting one of a window closing command and a window opening command according to an intent of a vehicle occupant;

first execution means for executing a manual operation during a time period from a start moment at which the operation switch outputs one of the window raising and lowering commands to a first moment at which a first predetermined time period has elapsed from the start moment,

second execution means for executing an automatic operation during a time period from the first moment to a second moment at which a second predetermined time period has elapsed from the start moment, and

third execution means for executing the manual operation from the second moment.

10. A power window apparatus for a vehicle, comprising:

a drive motor for raising and lowering a window glass;

an operation switch outputting a window closing command when a vehicle occupant turns on the operation switch;

a rotation detector attached to the drive motor and detecting a rotation speed of the drive motor; and

a controller coupled to the drive motor, the operation switch and the rotation detector, the controller being arranged,

to operate the drive motor so as to raise the window glass from a start moment at which the operation switch outputs the window raising command,

to count an elapsed time from the start moment,

to calculate a load applied to the drive motor on the basis of the rotation speed of the drive motor,

to stop operating the drive motor when the load is greater than a predetermined load,

to operate the drive motor so as to lower the window glass when the operation switch stops outputting the window raising command before the elapsed time reaches a predetermined time period and when the load is greater than the predetermined load,

to restart the operation of the drive motor to raise the window glass from a moment at which the elapsed time reaches the predetermined time period and when the operation switch continues outputting the window raising signal.

11. The power window apparatus as claimed in claim 10, wherein the controller executes an automatic operation for raising the window glass to a full close state when the window closing command is outputted for a time period ranging from a first predetermined period to the predetermined period and when the load is smaller than or equal to the predetermined load.