AUTOMATIC WINDOW REPOSITIONING TO RELIEVE VEHICLE PASSENGER CABIN WIND PRESSURE PULSATION

• US 20090069984A1
• Filed: 09/06/2007
• Published: 03/12/2009
• Est. Priority Date: 09/06/2007
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations Incorporated (Motors Liquidation Co. GUC Trust)
• Inventors: TURNER, PHILLIP M., HUANG, YUEH-SE J., WANG, PEI-CHUNG
• Granted Patent: US 7,877,180 B2
• Time in Patent Office: Days
• US Class Current: 701/49
• CPC Class Codes: E05F 15/695 Control circuits therefor
• CPC Class Codes: E05F 15/70 with automatic actuation
• CPC Class Codes: E05F 15/71 responsive to temperature changes, rain, wind or noise
• CPC Class Codes: E05Y 2400/44 Sensors therefore E05Y2400/322, E05Y2400/33, E05Y2400/55, E05Y2400/56, E05Y2400/852 take precedence
• CPC Class Codes: E05Y 2800/422 against vibration or noise
• CPC Class Codes: E05Y 2900/55 Windows

Abstract

Methods and apparatus are provided for the detection of conditions indicative of a wind pressure pulsation within the passenger cabin of a vehicle, and for the reduction of the intensity of the pressure pulsation via automatic window repositioning. The apparatus comprises vehicle sensors for detection of a pressure pulsation condition, controllers to process sensor data and issue commands, and power-operated vehicle windows.

Claims

1. A control method for a vehicle having a passenger cabin and windows, the method comprising:

receiving sensor data of the vehicle;

analyzing the sensor data to detect a condition indicative of a wind pressure pulsation within the passenger cabin; and

if the condition indicative of a wind pressure pulsation is detected, repositioning a window of the vehicle to a non-closed position to reduce the wind pressure pulsation.

2. The method of claim 1, wherein the sensor data comprises:

data indicative of a window position state; and

data indicative of a current speed of the vehicle.

3. The method of claim 2, wherein analyzing the sensor data comprises determining whether to reposition the window, as a function of the window position state and the current speed of the vehicle.

4. The method of claim 3, wherein repositioning the window comprises repositioning the window to a particular non-closed position, wherein the particular non-closed position is a function of the window position state and the current speed of the vehicle.

5. The method of claim 1, wherein the sensor data comprises data indicative of a passenger cabin air pressure measurement.

6. A system to reduce a wind pressure pulsation in a passenger cabin of a vehicle, the system comprising:

a plurality of power windows;

a plurality of window position sensors, the window position sensors being configured to generate window position data corresponding to current positions of the power windows;

a power window controller for the power windows;

a vehicle speed sensor configured to generate speed data corresponding to a current speed of the vehicle; and

a control module coupled to the window position sensors, the power window controller, and the vehicle speed sensor, the control module being configured to;

receive the window position data from the window position sensors and the speed data from the vehicle speed sensor; and

instruct the power window controller to reposition one or more of the power windows to respective non-closed positions if the window position data and speed data together indicate a wind pressure pulsation condition within the passenger cabin of the vehicle.

7. The system of claim 6, wherein the control module is configured to determine, as a function of the window position data and the current speed of the vehicle, whether to instruct the power window controller to reposition the one or more of the power windows.

8. The system of claim 7, wherein the control module is configured to instruct the power window controller to reposition the one or more of the power windows to particular non-closed positions, wherein each of the particular non-closed positions is a function of the window position data and the current speed of the vehicle.

9. The system of claim 6, further comprising a manual override system configured to allow a user of the vehicle to manually adjust the one or more of the power windows from the respective non-closed positions.

10. The system of claim 9, wherein the manual override system is configured to temporarily disable automatic repositioning of the power windows in response to a manual override command.

11. A method of reducing a wind pressure pulsation in a vehicle having front windows, rear windows, a vehicle speed sensor, and window position sensors for the rear windows, the method comprising:

detecting conditions indicative of the wind pressure pulsation, based on a current speed received from the vehicle speed sensor and a rear window position state obtained from the window position sensors; and

in response to the detecting step, automatically repositioning one or more of the front windows to respective non-closed positions to reduce the wind pressure pulsation.

12. The method of claim 11, further comprising determining, as a function of the rear window position state and the current speed, whether to reposition the one or more of the front windows.

13. The method of claim 12, wherein repositioning the one or more of the front windows comprises repositioning the one or more of the front windows to particular non-closed positions, wherein each of the particular non-closed positions is a function of the rear window position state and the current speed.

14. The method of claim 11, further comprising:

receiving a manual override command for a specified front window of the vehicle; and

in response to the manual override command, adjusting the specified front window from its non-closed position to a manual override position.

15. The method of claim 14, further comprising temporarily disabling automatic repositioning of the front windows, wherein the manual override command initiates the disabling.

16. The method of claim 11, wherein:

the vehicle has a front left window, a front right window, a rear left window, and a rear right window;

detecting conditions indicative of the wind pressure pulsation is based on the current speed and the rear window position state of the rear left window; and

automatically repositioning one or more of the front windows comprises automatically repositioning the front right window.

17. The method of claim 11, wherein:

the vehicle has a front left window, a front right window, a rear left window, and a rear right window;

detecting conditions indicative of the wind pressure pulsation is based on the current speed and the rear window position state of the rear right window; and

automatically repositioning one or more of the front windows comprises automatically repositioning the front left window.