Opening/closing control device

An opening/closing control device that controls an opening/closing operation of an opening/closing body by driving a motor, the device comprising:

• a processor and a memory having program code stored therein, wherein when the processor executes the program code, the processor is configured into:
• a current detecting unit configured to detect a current flowing in the motor;
• an angular velocity detecting unit configured to detect an angular velocity of a rotation of the motor;
• a load calculating unit configured to calculate a load applied during the opening/closing operation of the opening/closing body, according to the current detected by the current detecting unit and the voltage detected by the voltage detecting unit;
• a trap detecting unit configured to detect a trap of an object, the trap being caused by the opening/closing body, according to the load calculated by the load calculating unit;
• and
• a motor control unit configured to perform trap prevention control when the trap detecting unit detects the trap, a rotation of the motor being reversed in the trap prevention control;
• wherein:
• the load calculating unit calculates the load formed by combining a first load component proportional to the detected current and a second load component proportional to an angular acceleration of the rotation of the motor together, the angular acceleration being approximated according to the detected angular velocity.