Window opening-closing control system and window opening-closing control apparatus

Patent metadata

Field	Value
Publication number	US-9394739-B2
Application number	US-201514790548-A
Country	US
Kind code	B2
Filing date	Jul 2, 2015
Priority date	Jul 3, 2014
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

The invention improves detection accuracy of interposition at a vehicle window. An interposition detector determines that a window at a passenger's seat has interposition if motor current for opening and closing the window at the passenger's seat does not decrease to be less than a predetermined threshold but increases to be not less than a second threshold, or if the motor current does not decreases to be less than the predetermined threshold but increases at a predetermined or more increase rate. The interposition detector determines that the window at the passenger's seat does not have interposition if the motor current is less than the predetermine threshold. The invention is applicable to an automatic window system and the like.

First claim

The invention claimed is:

1. A window opening-closing control system configured to control opening and closing a window at a driver's seat and a window at a passenger's seat other than the driver's seat in a vehicle, the window opening-closing control system comprising:
a passenger's seat unit provided at the passenger's seat; and
a window opening-closing control apparatus provided at the driver's seat;
the passenger's seat unit including:
a momentary passenger's seat sub switch having a first contact operated to close the window at the passenger's seat and a second contact operated to open the window at the passenger's seat;
the first contact including:
a first common terminal connected to a first end of a passenger's seat motor configured to open and close the window at the passenger's seat;
a first normally opened terminal connected to a positive electrode of a power supply of the vehicle via a first wire, and connected to the first common terminal in response to operation for closing the window at the passenger's seat; and
a first normally closed terminal;
the second contact including:
a second common terminal connected to a second end of the passenger's seat motor;
a second normally opened terminal connected to the positive electrode of the power supply via the first wire, and connected to the second common terminal in response to operation for opening the window at the passenger's seat; and
a second normally closed terminal;
the window opening-closing control apparatus including:
a driver's seat main switch operated to open and close the window at the driver's seat;
a passenger's seat main switch having a third contact operated to close the window at the passenger's seat and a fourth contact operated to open the window at the passenger's seat, the passenger's seat main switch operated to open and close the window at the passenger's seat;
a motor current detector configured to detect current flowing to the passenger's seat motor;
a first relay circuit unit having a first relay contact and configured to be driven to close the window at the passenger's seat, the first relay contact including:
a first common relay terminal connected to the first normally closed terminal via a second wire;
a first normally opened terminal connected to the positive electrode of the power supply; and
a first normally closed relay terminal connected to ground;
a second relay circuit unit having a second relay contact and configured to be driven to open the window at the passenger's seat, the second relay contact including:
a second common relay terminal connected to the second normally closed terminal via a third wire;
a second normally opened relay terminal connected to the positive electrode of the power supply; and
a second normally closed relay terminal connected to ground;
an operation detector configured to detect operation to the driver's seat main switch and the passenger's seat main switch in accordance with a signal received from the driver's seat main switch and the passenger's seat main switch;
an opening-closing controller configured to control the first relay circuit unit and the second relay circuit unit in accordance with the operation to the passenger's seat main switch; and
an interposition detector configured to detect a period of a ripple of the motor current detected by the motor current detector and to detect interposition at the window at the passenger's seat in accordance with a change of the period;
wherein when the first relay circuit unit or the second relay circuit unit is driven, the interposition detector does not determine that the window at the passenger's seat has interposition but determines that the passenger's seat sub switch is operated if the period of the ripple is not less than a predetermined period and the motor current decreases to be less than a predetermined first threshold.

2. The window opening-closing control system according to claim 1 ,
wherein the interposition detector determines that the window at the passenger's seat has interposition if the period of the ripple is not less than the predetermined period and the motor current increases to be not less than a predetermined second threshold without decreasing to be less than the first threshold, or if the period of the ripple is not less than the predetermined period and the motor current increases at a predetermined or more increase rate without decreasing to be less than the first threshold.

3. The window opening-closing control system according to claim 1 ,
wherein the operation detector determines that the operation for closing the window at the passenger's seat is performed to the passenger's seat sub switch if the motor current decreases to be less than the first threshold and then increases to be not less than a predetermined third threshold larger than the first threshold within a predetermined first prescribed time period while the operation for closing the window at the passenger's seat is performed to the passenger's seat main switch, and determines that the operation for opening the window at the passenger's seat is performed to the passenger's seat sub switch if the motor current decreases to be less than the first threshold and is then less than the first threshold continuously for not less than a predetermined second prescribed time period while the operation for closing the window at the passenger's seat is performed to the passenger's seat main switch.

4. The window opening-closing control system according to claim 1 ,
wherein the window opening-closing control apparatus further includes:
a window position detector configured to detect a position of the window at the passenger's seat in an opening-closing direction in accordance with the ripple of the motor current.

5. The window opening-closing control system according to claim 1 ,
wherein the motor current detector is a resistor provided on a route of the flowing motor current.

6. A window opening-closing control apparatus connected via second and third wires to a passenger's seat unit provided at a passenger's seat other than a driver's seat in a vehicle,
the passenger's seat unit including:
a momentary passenger's seat sub switch having a first contact operated to close a window at the passenger's seat and a second contact operated to open the window at the passenger's seat;
the first contact including:
a first common terminal connected to a first end of a passenger's seat motor configured to open and close the window at the passenger's seat;
a first normally opened terminal connected to a positive electrode of a power supply of the vehicle via a first wire, and connected to the first common terminal in response to operation for closing the window at the passenger's seat; and
a first normally closed terminal;
the second contact including:
a second common terminal connected to a second end of the passenger's seat motor;
a second normally opened terminal connected to the positive electrode of the power supply via the first wire, and connected to the second common terminal in response to operation for opening the window at the passenger's seat; and
a second normally closed terminal;
the window opening-closing control apparatus provided at the driver's seat in the vehicle and configured to control opening and closing a window at the driver's seat and the window at the passenger's seat;
the window opening-closing control apparatus comprising:
a driver's seat main switch operated to open and close the window at the driver's seat;
a passenger's seat main switch having a third contact operated to close the window at the passenger's seat and a fourth contact operated to open the window at the passenger's seat, the passenger's seat main switch operated to open and close the window at the passeng

Assignees

• Ogawa Daisuke
• Kigoshi Katsunori
• Sato Kenji
• Imai Hidekazu
• Fujita Atsushi
• Kakamu Akihiro
• Yokoyama Naoyuki
• Yamamoto Yosuke
• Omron Automotive Electronics

Inventors

• Ogawa Daisuke
• Kigoshi Katsunori
• Sato Kenji
• Imai Hidekazu
• Fujita Atsushi
• Kakamu Akihiro
• Yokoyama Naoyuki
• Yamamoto Yosuke

Classifications

• E05F15/695 Primary

  Control circuits therefor · CPC title