A mobile shaft winch, includes a carrier vehicle having a vehicle drive, with an internal combustion engine, a rigid main frame, and a rotary platform arranged on the main frame by a rotary connection. A drum winch is arranged on the rotary platform and has a cable drum driven by a winch drive. A hydraulic system arranged on the carrier vehicle includes a hydraulic pump driven by an electric motor a pressure side of the hydraulic pump is in fluid-conducting connection with a hydraulic motor of the winch drive. The internal combustion engine of the vehicle drive drives an electric generator through an auxiliary output drive. The electric motor is configured to be selectively operated on an electricity supply grid or the electric generator.

Provided is an electric winch device including: an electric motor; a winch drum; a brake; an operation lever; and a controller. The controller includes: a first torque derivation unit which derives a value of a first torque applied to the winch drum due to a load of an object; a second torque derivation unit which derives a value of a second torque generated in the winch drum by a drive torque of the electric motor; and a brake control unit which determines a timing for releasing a braking action on the winch drum after the operation lever has been operated, on the basis of a differential between the second torque value and the first torque value, and which causes the brake to release the braking action on the winch drum by transmitting, to the brake, a control signal instructing release of the braking action on the winch drum at the determined timing.

Provided is an electric winch device including: an electric motor; a winch drum; a brake; an operation lever; and a controller. The controller includes: a first torque derivation unit which derives a value of a first torque applied to the winch drum due to a load of an object; a second torque derivation unit which derives a value of a second torque generated in the winch drum by a drive torque of the electric motor; and a brake control unit which determines a timing for releasing a braking action on the winch drum after the operation lever has been operated, on the basis of a differential between the second torque value and the first torque value, and which causes the brake to release the braking action on the winch drum by transmitting, to the brake, a control signal instructing release of the braking action on the winch drum at the determined timing.

The invention relates to a continuous cable winch comprising a drive unit (20) and an output unit (60) for applying a drive force to a cable, which output unit is coupled to the drive unit (20).

According to the invention, it is proposed that the drive unit (20) has a frequency converter (30) with a primary side (32) for drawing current from a power supply system (33) and a secondary side (36) for outputting an AC voltage (U.sub.U, U.sub.V, U.sub.W), an AC motor (40) for driving the continuous cable winch (10) at a variable rotation speed (.sub.1), which AC motor is supplied with the AC voltage (U.sub.U, U.sub.V, U.sub.W) by the frequency converter (30), a control unit (50) which is interconnected with the frequency converter (30) and the AC motor (40) for the purpose of controlling the drive unit (20), wherein the control unit (50) is designed to change the rotation speed (.sub.1) of the AC motor (40) by means of the frequency converter (30).

The invention relates to a continuous cable winch comprising a drive unit (20) and an output unit (60) for applying a drive force to a cable, which output unit is coupled to the drive unit (20).

According to the invention, it is proposed that the drive unit (20) has a frequency converter (30) with a primary side (32) for drawing current from a power supply system (33) and a secondary side (36) for outputting an AC voltage (U.sub.U, U.sub.V, U.sub.W), an AC motor (40) for driving the continuous cable winch (10) at a variable rotation speed (.sub.1), which AC motor is supplied with the AC voltage (U.sub.U, U.sub.V, U.sub.W) by the frequency converter (30), a control unit (50) which is interconnected with the frequency converter (30) and the AC motor (40) for the purpose of controlling the drive unit (20), wherein the control unit (50) is designed to change the rotation speed (.sub.1) of the AC motor (40) by means of the frequency converter (30).

Hybrid electric vehicles (HEVs) and electric vehicles (EVs) include one or more motor generators for providing motive force to propel such HEVs/EVs. A winch may be operatively connected to such motor generators, where selective engagement and disengagement of the winch to such motor generators is effectuated via a clutch mechanism. The speed at which the winch may be operated may be effectuated via a planetary gear mechanism. In this way, the motor generator(s) of an HEV/EV can be leveraged to power the winch.

Hybrid electric vehicles (HEVs) and electric vehicles (EVs) include one or more motor generators for providing motive force to propel such HEVs/EVs. A winch may be operatively connected to such motor generators, where selective engagement and disengagement of the winch to such motor generators is effectuated via a clutch mechanism. The speed at which the winch may be operated may be effectuated via a planetary gear mechanism. In this way, the motor generator(s) of an HEV/EV can be leveraged to power the winch.

An electric winch device including an electric motor that rotates a winch drum in a hoisting direction, and generates regenerative electric power when a rotation of the winch drum in a lowering direction is transmitted to the electric motor, a transmission device that transmits the rotation between the electric motor and the winch drum, a power calculating section that calculates power of the target object by freefall, and a control section that controls an operation of the transmission device. When the power calculated by the power calculating section exceeds reference electric power, the control section causes the transmission device to change the transmission rate of the rotation to a transmission rate at which the regenerative electric power generated by the electric motor is equal to or smaller than the reference electric power.

An electric winch device including an electric motor that rotates a winch drum in a hoisting direction, and generates regenerative electric power when a rotation of the winch drum in a lowering direction is transmitted to the electric motor, a transmission device that transmits the rotation between the electric motor and the winch drum, a power calculating section that calculates power of the target object by freefall, and a control section that controls an operation of the transmission device. When the power calculated by the power calculating section exceeds reference electric power, the control section causes the transmission device to change the transmission rate of the rotation to a transmission rate at which the regenerative electric power generated by the electric motor is equal to or smaller than the reference electric power.

The invention relates to a cable winch (100) for an aircraft or vehicle. The cable winch (100) has a central module (110), which can be or is attached to the aircraft or vehicle. The central module (110) is shaped in such a way that the central module can he or is mechanically connected to at least one further module (120, 130, 150, 160) of the cable winch (100) in a manually detachable manner by using at least one fastening device. The cable winch (100) also has a capstan drive module (120) for drawing a cable into the cable winch (100) and for letting the cable out of the cable winch (100). The capstan drive module (120) is shaped in such a way that the capstan drive module can be or is mechanically connected to the central module (110) in a manually detachable manner by using the at least one fastening device. The cable winch (100) also has a cable-winding module (130) for holding the cable by winding and unwinding the cable. The cable-winding module (130) is shaped in such a way that the cable-winding module can be or is mechanically connected to the central module (110) in a manually detachable manner by using the at least one fastening device.