Abstract: No studies have been made regarding what kinds of refrigerants should be used in a refrigeration cycle device for a vehicle. An air conditioner (1) for a vehicle includes a refrigerant circuit (10) and a refrigerant that is sealed in the refrigerant circuit (10). The refrigerant circuit (10) includes a compressor (80), a first heat exchanger (85), which serves as a heat dissipater in a dehumidifying heating mode, an outside-air heat exchanger (82), a cooling control valve (87), and a second heat exchanger (86), which serves as an evaporator in the dehumidifying heating mode. The refrigerant is a refrigerant having a low GWP.

Abstract: A stick with a wheel that is capable of assisting walking by power of a wheel and that is capable of driving the wheel according to desire of a user regarding walking is provided. The stick with the wheel includes the wheel and a drive part configured to drive the wheel.

Abstract: To provide a drive force transmission device that is capable of transmitting elastic energy of an elastic member to an output shaft with a simpler structure than the structure of the related art. A drive force transmission device includes a first shaft (input shaft), and a second shaft (a crankshaft, a crank disc, an intermediate shaft). A force is applied to the second shaft in a predetermined direction of rotation and in a direction opposite to the direction of rotation. The force varies in strength in association with the rotation. The first shaft is connected to the second shaft, and transmission of a drive force of the first shaft to the second shaft is enabled.

Abstract: A stick capable of assisting walking by power of a wheel and driving the wheel according to user's desire regarding walking while maintaining the stick at a stable posture is provided. A stick includes a first stick with a wheel and a second stick with a wheel, in which the first stick and the second stick are made to cooperate with each other to control driving of the wheels included in the first stick and the second stick, respectively.

Abstract: A torque variation suppressing apparatus includes a rotation element, and a plurality of first elastic elements and second elastic elements which apply elastic forces to the rotation element. With a rotation of the rotation element, a torque applied to the rotation element from each of the first elastic elements and the second elastic elements changes periodically, and a phase of the torque applied to the rotation element from at least one of the first elastic elements and the second elastic elements is changed so that an overall torque characteristic applied to the rotation element is set variable.

Abstract: A magnetic clutch device having improved durability and reliability without increasing a size in an axial direction. A fixed member, the first engagement element, and a second engagement element are arranged concentrically to one another in order from a rotational center axis. The first engagement element comprises a first magnet. The fixed member comprises a second magnet in which a polarity is switched between a straight polarity and a reversed polarity, and a coil that switches the polarity of the second magnet depending on a direction of the current applied thereto.

Abstract: A drive power transmission device capable of transmitting drive power asynchronously with rotation of an input shaft. The drive power transmission device includes a first rotation shaft, a second rotation shaft, an elastic member, and a vibration element. One end of the elastic member is fixed to the second rotation shaft at a position spaced from its central axis, while the other end of the elastic member is fixed to the vibration element. The vibration element is capable of being placed in either one of a first state of being connected to the first rotation shaft and a second state of being disconnected from the first rotation shaft.

Abstract: A magnetic clutch device having improved durability and reliability without increasing a size in an axial direction. A fixed member, the first engagement element, and a second engagement element are arranged concentrically to one another in order from a rotational center axis. The first engagement element comprises a first magnet. The fixed member comprises a second magnet in which a polarity is switched between a straight polarity and a reversed polarity, and a coil that switches the polarity of the second magnet depending on a direction of the current applied thereto.

Abstract: A torque variation suppressing apparatus includes a rotation element, and a plurality of first elastic elements and second elastic elements which apply elastic forces to the rotation element. With a rotation of the rotation element, a torque applied to the rotation element from each of the first elastic elements and the second elastic elements changes periodically, and a phase of the torque applied to the rotation element from at least one of the first elastic elements and the second elastic elements is changed so that an overall torque characteristic applied to the rotation element is set variable.

Abstract: A control system for an engagement device that engage the engagement device promptly to reduce a power loss is provided. The control system has a controller configured to start controlling a first motor in such a manner as to synchronize a rotational speed of a first engagement element to a rotational speed of a second engagement element, simultaneously with a commencement of engagement of the first engagement element with the second engagement element, or after the commencement of the engagement of the first engagement element with the second engagement element.

Abstract: To provide a drive force transmission device that is capable of transmitting elastic energy of an elastic member to an output shaft with a simpler structure than the structure of the related art. A drive force transmission device includes a first shaft (input shaft), and a second shaft (a crankshaft, a crank disc, an intermediate shaft). A force is applied to the second shaft in a predetermined direction of rotation and in a direction opposite to the direction of rotation. The force varies in strength in association with the rotation. The first shaft is connected to the second shaft, and transmission of a drive force of the first shaft to the second shaft is enabled.

Abstract: A current command value calculating unit (174) calculates current command values for a rotor winding (30) and current command values for a stator winding (20) with respect to a torque command value between a first rotor (28) and a second rotor (18) and a torque command value between a stator (16) and the second rotor (18) based on an evaluation function representing a total copper loss of the rotor winding (30) and the stator winding (20) and using first and second magnetic interference models. The first magnetic interference model represents a relationship of a linkage magnetic flux ?in of the rotor winding (30) with respect to a current Iin in the rotor winding (30) and a current Iout in the stator winding (20). The second magnetic interference model represents a relationship of a linkage magnetic flux ?out of the stator winding (20) with respect to the current Iin, Iout.

Abstract: When a rotational difference is generated between a left driving wheel and a right driving wheel, by controlling the frequency f0 of alternating currents to be fed to stator windings of first and second induction machines by a shared inverter, torque distribution to the left driving wheel and the right driving wheel is controlled.

Abstract: This rotor for a rotating electric motor includes a hollow cylindrical rotor core with a plurality of laminated electromagnetic steel plates. The inner and outer circumferential surfaces of the rotor core each face a magnetic gap. The rotor core is interposed between a first rotating support member and a second rotating support member. A flange is formed on a first end of a tubular pin protruding from a first hole of the first rotating support member. A tubular expansion part of the tubular pin plastically deforms due to fluid pressure so as to come into close contact with a through hole of the rotor core, the first hole of the first rotating support member, and a second hole of the second rotating support member.

Abstract: Provided is a compound motor (14) comprising a magnet rotor (19) supported by bearings (B3, B4) in a rotatable manner, a winding rotor (20) supported by bearings (B5, B6) in a rotatable manner relative to the magnet rotor (19) at the inner side of the magnet rotor (19) and having rotor winding units (20b), and slip ring mechanisms (25). A space is formed in the inner circumference of the winding rotor (20). At least a part of the slip ring mechanisms (25) is arranged in the space of the inner circumference of the winding rotor (20). The bearings (B3 to B6) include bearings (B3, B6), the internal diameter of each is larger than the size of slip ring mechanisms (25) with respect to the radial direction. The bearings (B3, B6) are arranged outside the slip ring mechanisms (25) with respect to the radial direction.

Abstract: A current command value calculating unit (174) calculates current command values for a rotor winding (30) and current command values for a stator winding (20) with respect to a torque command value between a first rotor (28) and a second rotor (18) and a torque command value between a stator (16) and the second rotor (18) based on an evaluation function representing a total copper loss of the rotor winding (30) and the stator winding (20) and using first and second magnetic interference models. The first magnetic interference model represents a relationship of a linkage magnetic flux ?in of the rotor winding (30) with respect to a current Iin in the rotor winding (30) and a current Iout in the stator winding (20). The second magnetic interference model represents a relationship of a linkage magnetic flux ?out of the stator winding (20) with respect to the current Iin, Iout.

Abstract: A drive power transmission device capable of transmitting drive power asynchronously with rotation of an input shaft. The drive power transmission device includes a first rotation shaft, a second rotation shaft, an elastic member, and a vibration element. One end of the elastic member is fixed to the second rotation shaft at a position spaced from its central axis, while the other end of the elastic member is fixed to the vibration element. The vibration element is capable of being placed in either one of a first state of being connected to the first rotation shaft and a second state of being disconnected from the first rotation shaft.

Abstract: When a drive shaft (37) is driven while the operation of an engine (36) is stopped, the rotation of an input-side rotor (28) is restricted by the engagement of a brake. Further, on the basis of the temperature Temp_SR of a brush (96) acquired by a temperature sensor (97), the distribution of torque Tcoup acting between the input-side rotor (28) and the first output-side rotor (18) and torque Tmg acting between the stator (16) and the second output-side rotor (19) is controlled. Consequently, drive performance when the drive shaft (37) is driven while the operation of the engine (36) is stopped is improved while local overheating of a slip ring (95) is prevented.

Abstract: A rotational difference is generated between a first and a second rotor and a third rotor, which causes an induced current to flow in a first rotor winding. This causes a torque to act between the first rotor and the third rotor. The rotary magnetic field generated by the induced current flowing through a second rotor winding interacts with a second stator, which in turn generates an induced electromotive force in a second stator winding. The induced electromotive force is applied via a phase adjustment circuit to a first stator winding, which generates a rotary magnetic field and causes a torque to act between the first stator and the third rotor. The rotary magnetic field generated by the second rotor winding and the induced current flowing in the second stator winding causes a torque to act between the second stator and the second rotor.

Abstract: When a rotational difference is generated between a left driving wheel and a right driving wheel, by controlling the frequency f0 of alternating currents to be fed to stator windings of first and second induction machines by a shared inverter, torque distribution to the left driving wheel and the right driving wheel is controlled.