A permanent magnet speed governor having a fixed magnetic gap. The permanent magnet speed governor includes an outer magnetic rotor and an inner magnetic rotor, at least two outer permanent magnets being evenly distributed along the circumferential direction of the inner circumferential surface of the outer magnetic rotor, the magnetic poles of the outer permanent magnets being arranged along the radial direction, the magnetisms of exposed magnetic pole surfaces of two adjacent outer permanent magnets being different. At least one rotatable permanent magnet is distributed along the circumferential direction of the outer circumferential surface of the inner magnetic rotor, the rotatable permanent magnet being cylindrical and the N pole and the S pole being along the diametrical direction, one end of the rotatable permanent magnet being provided with a magnetic circuit regulator. It increases the engagement area of the speed governor.

Disclosed are systems and methods for protecting an escrow clutch of a self-service terminal. The systems and methods may include actuating a motor of the self-service terminal to cause an escrow clutch of the self-service terminal to spin at a rate. As the clutch spins, a determination as to when a clutch slippage exceeds a preset slippage rate may be made. When the clutch slippage exceeds the preset slippage rate, the motor may be actuated to cause the escrow clutch to spin at a second rate. The second rate may less than the first rate.

An electric working machine in one aspect of the present disclosure includes an output shaft, a motor, a housing, an acceleration detector, a twisted motion detector, a reference level changer, and a motor controller. The acceleration detector detects an acceleration of the housing in a circumferential direction of the output shaft. The twisted motion detector detects a twisted motion of the housing based on a reference level and the acceleration detected. The reference level determines that the housing is twisted. The reference level changer changes the reference level based on a rotating motion of the output shaft.

Disclosed are systems and methods for protecting an escrow clutch of a self-service terminal. The systems and methods may include actuating a motor of the self-service terminal to cause an escrow clutch of the self-service terminal to spin at a rate. As the clutch spins, a determination as to when a clutch slippage exceeds a preset slippage rate may be made. When the clutch slippage exceeds the preset slippage rate, the motor may be actuated to cause the escrow clutch to spin at a second rate. The second rate may less than the first rate.

An actuator for connecting and disconnecting a dog clutch having an axially moveable sleeve (3), the actuator (4) comprising an electric motor (6), wherein a rotor (61) of the motor is connected to a rotatable actuator rod (7), which is provided at its end with an eccentric pin (5) for such cooperation with the clutch sleeve (3) that a rotation of the actuator rod (7) 180° or less by means of the motor from a rotational position corresponding to one axial end position of the clutch sleeve (3) to a rotational position corresponding to the other axial end position of the clutch sleeve (3) leads to a connection or disconnection of the dog clutch.

In a wheel drive apparatus, a clutch is configured to switch a coupling mode between a first rotating shaft of a first rotating electrical machine and a second rotating shaft of a second rotating electrical machine to any one of (i) a power transmission mode in which power transmission is enabled between the first rotating shaft and the second rotating shaft; and (ii) a power interruption mode in which power transmission is interrupted between the first rotating shaft and the second rotating shaft.

An electric oil pump for automobile transmission clutch engagement includes: a temperature sensor that measures a temperature of oil supplied to an oil supply destination relating to clutch engagement of an automobile transmission; an oil pump drive motor; a current determination part that determines a current value output to the oil pump drive motor to a predetermined current value determined such that the oil pump drive motor is capable of being driven without stopping in a case where the temperature is equal to or less than a predetermined temperature at which a torque of the oil pump drive motor becomes smaller than a load of the oil pump drive motor; and an oil pump that supplies oil to the oil supply destination by the oil pump drive motor being driven based on the determined current value.

Apparatus for providing hydraulic line pressure and vacuum respectively to the steering subsystem and the braking subsystem of a wheeled motor vehicle comprises a battery powered electric motor which drives one or more of a hydraulic pump and a vacuum pump. When the engine is stopped while the vehicle is moving, to save fuel, the electric motor drives the pumps, so that hydraulic pressure and vacuum are provided for continued safe operation of the vehicle.

A control device for an electric vehicle is provided, which includes a drive motor of which magnetic poles of a rotor are comprised of variable magnetism magnets, and a clutch disposed between the drive motor and driving wheels. When the electric vehicle travels, the control device performs a torque control, and a first clutch control in which an engaging torque of the clutch is controlled to be higher than a demanded torque. When performing a magnetization control when the electric vehicle travels, the control device changes the clutch control from the first clutch control to a second clutch control in which the engaging torque is made to coincide with the demanded torque, before the execution of the magnetization control, and adds a given slip torque to the demanded torque to start a micro slip control in which the clutch is transitioned from an engaged state into a micro slip state.

An electric tool includes a motor, a holder, a transmission mechanism, a torque detector, an electronic clutch, and an inhibiting mechanism. The holder is configured to hold a tip tool thereon. The transmission mechanism transmits motive power of the motor to the holder. The torque detector detects a torque value about output torque provided by the tip tool. The electronic clutch is activated when a predetermined condition about the torque value detected by the torque detector is satisfied and thereby controls the motor to make the motor stop running. The inhibiting mechanism is interposed between the motor and the holder. The inhibiting mechanism inhibits transmission of inertial force from the motor to the holder in response to activation of the electronic clutch.