Sliding door driving device
AssigneeMitsui Kinzoku Act Corporation
InventorTakuya IMAI
Life of this patent
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Abstract
A sliding door driving device includes: a power source; a motor that outputs power to open and close the door, a motor driving circuit that connects the power source and the motor to each other; and a motor control device that controls the motor driving circuit. The motor control device includes an inverter that converts DC power supplied from the power source into AC power, and a shunt resistor disposed between the power source and the inverter. The position detection unit of the motor control device obtains the rotation angle of the motor based on the output of the shunt resistor.
Claims6
A sliding door driving device comprising:
- a power source;
- a motor configured to output power to open and close the sliding door;
- a motor driving circuit that connects the power source and the motor to each other;
- and
- a control device configured to control the motor driving circuit,
- wherein the motor driving circuit comprises:
- a power conversion device configured to convert DC power supplied from the power source into AC power;
- and
- a shunt resistor disposed between the power source and the power conversion device, and
- wherein the control device obtains a rotation angle of the motor based on a voltage generated in the shunt resistor by the current flowing through the power conversion device.
Dependencies are inferred from the claim text.