WINDOW OPENING-CLOSING CONTROL SYSTEM AND WINDOW OPENING-CLOSING CONTROL APPARATUS

摘要

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.

主权项

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.