SELF-SWITCHING, REVERSIBLE LINEAR ACTUATOR HAVING BIFILAR CONTROL

摘要

A mechatronic assembly for linearly driving a member includes a control unit and an actuator, the control unit including a control algorithm and a power bridge, the algorithm controlling the power bridge, the power bridge providing a bifilar electrical signal consisting of a torque signal and a direction signal, the actuator including an electric motor which does not have an N-phase multiphase brush, binary probes for detecting the position of the rotor of the motor, a device for transforming the rotational movement of the rotor into a linear movement of the control member, power switches capable of powering the N phases of the motor on the basis of the bifilar electrical signal, and the state of the power switches is controlled directly by a signal from the detection probes.

主权项

1. A mechatronic assembly for the linear drive of a member comprising a control unit and an actuator, with the control unit comprising a control algorithm and a power bridge, with the algorithm controlling the power bridge, with the power bridge providing a bifilar electric signal including a torque signal and a direction signal, with the actuator comprising a polyphase brushless electric motor having N phases, binary probes for detecting a position of the rotor of the motor, a transmission transforming rotational movement of the rotor into a linear movement of the control unit, power switches operably powering the N phases of the motor on the basis of the bifilar electric signal, and a state of the power switches being directly controlled by a signal from the detection probes.