In order to provide a transport unit for a long stator linear motor, wherein the orientation thereof can be easily determined on the long stator linear motor during operational use, according to the invention, the transport unit (1) has a first guide side (FS1) on which a first guide group (G1) is arranged and a second guide side (FS2) on which a second guide group (G2) is arranged. A first magnetic side (S1) positioned laterally relative to the longitudinal direction (x) is opposite a second magnetic side (S2), wherein the first magnetic side (S1) has a magnetic variable with a first value (w1) at a first test distance (a1) from the center of the first longitudinal extension (I1) in the direction of the first end (I1e), and on the first magnetic side (S1), a magnetic variable with a second value (w2), corresponding to the first value (w1), at the first test distance (a1) from the center of the first longitudinal extension (I1) in the direction of the first start (I1a). On the second magnetic side (S2), the transport unit (1) has a magnetic variable with a third value (w3) at a second test distance (a2) from the center of the second longitudinal extension (I2) in the direction of the second end (I2e), and a magnetic variable with a fourth value (w4), corresponding to the third value (w3), at the second test distance (a2) from the center of the second longitudinal extension (I2) in the direction of the second start (I2a), wherein the first and second values (w1, w2) differ from the third and fourth values (w3, w4).

In order to provide a transport unit for a long stator linear motor, wherein the orientation thereof can be easily determined on the long stator linear motor during operational use, according to the invention, the transport unit (1) has a first guide side (FS1) on which a first guide group (G1) is arranged and a second guide side (FS2) on which a second guide group (G2) is arranged. A first magnetic side (S1) positioned laterally relative to the longitudinal direction (x) is opposite a second magnetic side (S2), wherein the first magnetic side (S1) has a magnetic variable with a first value (w1) at a first test distance (a1) from the center of the first longitudinal extension (I1) in the direction of the first end (I1e), and on the first magnetic side (S1), a magnetic variable with a second value (w2), corresponding to the first value (w1), at the first test distance (a1) from the center of the first longitudinal extension (I1) in the direction of the first start (I1a). On the second magnetic side (S2), the transport unit (1) has a magnetic variable with a third value (w3) at a second test distance (a2) from the center of the second longitudinal extension (I2) in the direction of the second end (I2e), and a magnetic variable with a fourth value (w4), corresponding to the third value (w3), at the second test distance (a2) from the center of the second longitudinal extension (I2) in the direction of the second start (I2a), wherein the first and second values (w1, w2) differ from the third and fourth values (w3, w4).

A motor control device includes a table in which a motor torque generated from a reluctance torque utilizing motor is stored with respect to a combination of an armature current command value and a current phase angle command value at which the motor torque is maximized for the armature current command value, a first setting portion that sets a motor torque command value that is a command value of a motor torque to be generated by the reluctance torque utilizing motor, and a second setting portion that sets, based on the table, an armature current command value and a current phase angle command value for making a motor torque that is in accordance with the motor torque command value set by the first setting portion be generated from the reluctance torque utilizing motor.

A motor control device includes a table in which a motor torque generated from a reluctance torque utilizing motor is stored with respect to a combination of an armature current command value and a current phase angle command value at which the motor torque is maximized for the armature current command value, a first setting portion that sets a motor torque command value that is a command value of a motor torque to be generated by the reluctance torque utilizing motor, and a second setting portion that sets, based on the table, an armature current command value and a current phase angle command value for making a motor torque that is in accordance with the motor torque command value set by the first setting portion be generated from the reluctance torque utilizing motor.

A steering control device includes: an electric motor configured to apply an assist force to steering of a steering wheel; a torque sensor configured to detect steering torque of the steering wheel; a base target current setting unit configured to set a base driving force of the electric motor on the basis of the steering torque detected by the torque sensor; and an addition determination unit configured to determine whether a driving force larger than the base driving force is to be set, on the basis of a rotation speed of the electric motor.

A motor control actuator that drives a permanent magnet synchronous motor (PMSM) with sensorless Field Oriented Control includes a sampling circuit that generates a measurement signal by measuring a back electro motive force (BEMF) of the PMSM, while the PMSM rotates; a PLL that receives the measurement signal and extracts an amplitude and an angle of the BEMF from the measurement signal; and a motor controller that generates a first set of two phase alternating current (AC) voltage components based on an estimated rotor angle, generates a second set of two phase AC voltage components based on the amplitude and the angle, and generates control signals for driving the PMSM based on the first set of two phase AC voltage components. The motor controller performs a catch spin sequence for restarting the PMSM while rotating, the catch spin sequence includes a synchronizing period followed by a closed loop control period.

A linear motor system includes: a stator including first to tenth coils; a mover including a permanent magnet; a switcher that switches one or more power supply target coils; and first to tenth amplifiers provided in one-to-one correspondence with first to tenth coils. One or more amplifiers that serve as new one or more power supply target amplifiers immediately after the switching calculate Δθ (t0), which is a position deviation at time t=t0, based on Δθ (t0)=Δθ (t0−td)+A−B, where A is a difference between an instructed position at time t=t0 and an instructed position at time t=t0−td, and B is a difference between an actual position at time t=t0 and an actual position at time t=t0−td, and supply power to the power supply target coils by the position deviation Aθ (t0).

A linear motor system includes: a stator including first to tenth coils; a mover including a permanent magnet; a switcher that switches one or more power supply target coils; and first to tenth amplifiers provided in one-to-one correspondence with first to tenth coils. One or more amplifiers that serve as new one or more power supply target amplifiers immediately after the switching calculate Δθ (t0), which is a position deviation at time t=t0, based on Δθ (t0)=Δθ (t0−td)+A−B, where A is a difference between an instructed position at time t=t0 and an instructed position at time t=t0−td, and B is a difference between an actual position at time t=t0 and an actual position at time t=t0−td, and supply power to the power supply target coils by the position deviation Aθ (t0).

An open roof assembly for use in a vehicle roof of a vehicle comprises a moveably arranged closure member for selectively covering or at least partially exposing an opening in the vehicle roof, an electric motor operatively coupled to the closure member through a mechanical drive assembly for moving the closure member, an electric driving unit for providing a supply signal to the electric motor and a control unit operatively coupled to the electric driving unit for controlling operation of the electric motor. The electric driving unit comprises four switching devices in a bridged configuration and the control unit is configured to control a motion of the closure member by controlling operation of the switching devices, and to incur a safety stop during a motion of the closure member by an immediate reversal of a polarity of the supply signal.

A swing/rotating gas metal arc welding torch, include a hollow shaft motor and a feeder panel. An upper extending shaft of the feeder panel penetrates through a brush mechanism, and is fixedly connected to a lower extension shaft of the hollow shaft by means of a coupling, and a lower extending shaft of the feeder panel penetrates through a support bearing mounted in a brush base and is then connected to an eccentric or bent conductive rod mechanism; the motor base is fixedly connected to the brush base by means of connecting screws, and a welding shielding gas is provided and welding torch cooling is achieved by means of inner holes of the connecting screws as well as a built-in gas passage and a cooling water passage of the brush base; the length of the conductive rod mechanism is adjusted by means of modulation or extension and retraction.