METHOD AND EQUIPMENT FOR CONTROLLING OPENING AND CLOSING OF ELECTRIC OPENING-CLOSING BODY FOR CAR LOADING

摘要

PURPOSE: To detect overload generated during sliding, and to prevent inversion operation by comparing the driving current value of a motor and a set current value and compensating an overload threshold to a high threshold when the driving current value does not exceed the set current value after a fixed time passes after the motor is started. ;CONSTITUTION: The on/off signals of switches 3-6 and a tilt maximum-position switch 7 are input to corresponding interface circuits 12a-12d once respectively. Each circuit 12 inputs high-level signals to corresponding devices in ports 11-15 when the connected switches are turned on and low-level signals to them when the switches 3-7 are turned off. A signal, in which the applied voltage of a motor 11 is divided with the resistors 21, 22 of a circuit 20, is input to the A/D1 port of a control processing circuit 8, and a signal, in which a voltage drop by a series resistor 40 is amplified, a signal related to the quantity of the driving current of the motor 11 is input to an A/D2 port. Accordingly, the inversion of a sun-roof panel is prevented by elements excepting overload, thus surely deciding overload.;COPYRIGHT: (C)1996,JPO