Patent ID: 7276872

Claim:
A power window device for lowering and raising any one of a plurality of window members, the power window device comprising: a plurality of window switches, each provided for one of the window members and operated when lowering and raising its corresponding window member; a plurality of motors, each connected to one of the window switches for driving the corresponding window member when the window switch is operated; a plurality of control units, each provided for one of the window members and connecting the corresponding window switch and motor to control the motor in accordance with the operation of the window switch; and a signal path, connecting each control unit, for transmitting a validation signal that validates the control of each control unit over the corresponding motor and an invalidation signal that invalidates the control of each control unit over the corresponding motor, wherein each control unit includes; an unexpected condition determination means for determining whether the signal path is in an unexpected condition in which neither the transmitted validation signal nor the transmitted invalidation signal is received by the control unit; and an override means for validating the control of the control unit over the corresponding motor by overriding the validation signal or the invalidation signal transmitted through the signal path when the unexpected condition determination means determines that the signal path is in an unexpected condition, and for preventing the corresponding window member from entrapping an object.