Abstract: Provided is a maintenance system which includes a plurality of operating components (10) which autonomously operate by transmitting and receiving messages, and an information processing device (20). The operating component (10) includes an acquisition unit (17) that acquires observability data for grasping a state of the operating component (10), and a data transfer unit (16) which imparts an item common to different types of observability data and sends the data. The information processing device (20) includes a storage unit (21) which receives and stores the observability data, a correlation unit (22) which correlates different types of observability data on the basis of a common item included in the observability data, and a display unit (23) which displays the correlated observability data.

Abstract: A test code generation device includes an action generation unit that acquires at least one of pieces of API-related data of an API specification, an API execution order file, a parameter setting file, a script setting file, a test type, and a parameter list and generates action code data corresponding to an action of a state transition pattern of an API adapter, and the test code generation unit that generates a test code of the API adapter based on the action code data generated by the action generation unit and the state transition pattern of the API adapter.

Abstract: A vehicle display device that is mounted on a vehicle moving toward a destination does not display a content shown in the destination but displays a video related to the content and a video other than a video provided in the destination.

Abstract: An image forming system includes: a background member of a black color provided at an opposite side to a reading unit with respect to a conveyance path; and at least one processor configured to form a test chart on a first printing medium based on RIP data corresponding to the test chart, and inspect an inspection target image formed on a second printing medium by an image forming apparatus based on first image data obtained by reading the inspection target image formed on the second printing medium and the RIP data corresponding to the inspection target image. The test chart includes light patch images and dark patch images surrounding the light patch images, and each one of the light patch images and the dark patch images has different density.

Abstract: A vehicle display device that is mounted on a vehicle moving toward a destination does not display a content shown in the destination but displays a video related to the content and a video other than a video provided in the destination.

Abstract: A vehicle display device that is mounted on a vehicle moving toward a destination does not display a content shown in the destination but displays a video related to the content and a video other than a video provided in the destination.

Abstract: A vehicle display device includes a theme-specific related information storage unit that stores videos related to destinations and a display that reads a related video from the theme-specific related information storage unit and displaying the related video for a corresponding one of the destinations. The vehicle display device thus allows users in a vehicle to maintain excitement until a vehicle arrives in the destination.

Abstract: Costume information regarding a costume that a plurality of users wants to wear at a destination is acquired. The plurality of users wishes to visit the destination. Users who are determined to match are grouped, based on the costume information of the plurality of users. At least one user, out of the grouped users, is provided with information on another user of the grouped users.

Abstract: A permanent magnet synchronous motor includes a stator, a rotor rotatable relative to the stator, and a magnetic structure with a low coercive force magnet and a high coercive force magnet that are arranged magnetically in series with respect to each other to define a pole-pair of the permanent magnet synchronous motor. A magnetization level of the low coercive force magnet is changeable by a stator current pulse such that a stator magnetomotive force at a rated current is equal to or larger than a product of a magnetic field strength for fully magnetizing the low coercive force magnet and a thickness of the low coercive force magnet.

Abstract: A magnetization state control method for a variable magnetization machine, the method includes generating a flux linkage vector while changing a magnetization state of the variable magnetization machine such that a trajectory of the flux linkage vector has a curved clockwise trajectory on a dq-axis plane and a magnitude of the flux linkage vector temporally changes, with the dq-axis plane being a synchronous reference frame with a d-axis pointing in a direction of a permanent magnet flux and a q-axis being 90 degrees ahead of the d-axis in a rotational direction of a rotor.

Abstract: A permanent magnet synchronous motor includes a stator with a stator winding, a rotor with a rotor core rotatable relative to the stator, and a magnetic structure with at least one permanent magnet mounted to the rotor core. The magnetic structure produces a magnetic flux that flows between different magnetic poles of the magnetic structure through a main magnetic flux path that passes through the stator winding of the stator via an air gap and a leakage magnetic flux path that is located within the rotor core about an end portion of the permanent magnet near the air gap. The stator, the rotor and the magnetic structure being further configured to satisfy predetermined relationships in regards to the magnetic resistance of the main magnetic flux path and the leakage magnetic flux path, the magnetomotive force of the magnets and the stator.

Abstract: A permanent magnet synchronous motor includes a stator, a rotor rotatable relative to the stator, and a magnetic structure with a low coercive force magnet and a high coercive force magnet that are arranged magnetically in series with respect to each other to define a pole-pair of the permanent magnet synchronous motor. A magnetization level of the low coercive force magnet is changeable by a stator current pulse such that a stator magnetomotive force at a rated current is equal to or larger than a product of a magnetic field strength for fully magnetizing the low coercive force magnet and a thickness of the low coercive force magnet.

Abstract: A magnetization state control method for a variable magnetization machine, the method includes generating a flux linkage vector while changing a magnetization state of the variable magnetization machine such that a trajectory of the flux linkage vector has a curved clockwise trajectory on a dq-axis plane and a magnitude of the flux linkage vector temporally changes, with the dq-axis plane being a synchronous reference frame with a d-axis pointing in a direction of a permanent magnet flux and a q-axis being 90 degrees ahead of the d-axis in a rotational direction of a rotor.

Abstract: A soft switching system DC-DC converter includes a switching element, a transformer or a reactor, and a controller configured to control a switching operation of the switching element; and carries out the switching operation of the switching element in a state that a voltage or a current to be applied to the switching element is zero. In a case where a required output value of the DC-DC converter is lower than the minimum output over which soft switching is established, the controller controls the operation of the switching element so that an operation period in which an output of the DC-DC converter becomes the minimum output or higher and a stop period in which the output becomes zero are alternately repeated.

Abstract: A permanent magnet synchronous motor includes a stator with a stator winding, a rotor with a rotor core rotatable relative to the stator, and a magnetic structure with at least one permanent magnet mounted to the rotor core. The magnetic structure produces a magnetic flux that flows between different magnetic poles of the magnetic structure through a main magnetic flux path that passes through the stator winding of the stator via an air gap and a leakage magnetic flux path that is located within the rotor core about an end portion of the permanent magnet near the air gap. The stator, the rotor and the magnetic structure being further configured to satisfy predetermined relationships in regards to the magnetic resistance of the main magnetic flux path and the leakage magnetic flux path, the magnetomotive force of the magnets and the stator.

Abstract: A power supply device has a first power supply capable of storing and discharging electric power, a second power supply connected in series to the first power supply and capable of storing and discharging the electric power, an isolated DC-DC converter including a primary side terminal to which the first power supply is connected, and a secondary side terminal to which the second power supply is connected, and a power supply control unit that controls a voltage of the second power supply using the isolated DC-DC converter. A direct-current voltage outputted from the first power supply and the second power supply connected in series is inputted to a first inverter, converted into an alternating-current voltage by the first inverter, and then supplied to a vehicle drive motor.

Abstract: Provided is an inverter module for use in an inverter-integrated motor, the inverter module being arranged at an axial end portion of a motor, the inverter module including trapezoidal power modules, each of which has a single-phase inverter circuit mounted thereon, and includes an electrical connection terminal for a power supply arranged on a short side thereof and an electrical connection terminal for the motor arranged on a long side thereof. A plurality of the trapezoidal power modules are arranged in an annular pattern so that the long side of the each of the plurality of the trapezoidal power modules faces toward an outer periphery, to thereby construct a polyphase inverter circuit.

Abstract: A soft switching system DC-DC converter includes a switching element, a transformer or a reactor, and a controller configured to control a switching operation of the switching element; and carries out the switching operation of the switching element in a state that a voltage or a current to be applied to the switching element is zero. In a case where a required output value of the DC-DC converter is lower than the minimum output over which soft switching is established, the controller controls the operation of the switching element so that an operation period in which an output of the DC-DC converter becomes the minimum output or higher and a stop period in which the output becomes zero are alternately repeated.

Abstract: An electromechanical integrated motor has a motor housing for housing a stator and a rotor, and a power-converter housing for housing a power conversion module integrally joined to the motor housing. The power-converter housing has a radiator wall including the power conversion module attached to a surface on the motor-housing side of the radiator wall, and an outer-peripheral wall having a cylindrical shape, extending further toward the motor-housing side rather than the radiator wall, and being disposed on an outer-peripheral side of the power conversion module. The radiator wall and the outer-peripheral wall are separate members. The radiator wall is supported by the motor housing being capable of rotational movement. A plurality of power conversion modules are attached to the surface on the motor-housing side of the radiator wall, being arranged along a virtual circle having a rotation center of the rotational movement as a center thereof.

Abstract: Provided is an inverter module for use in an inverter-integrated motor, the inverter module being arranged at an axial end portion of a motor, the inverter module including trapezoidal power modules, each of which has a single-phase inverter circuit mounted thereon, and includes an electrical connection terminal for a power supply arranged on a short side thereof and an electrical connection terminal for the motor arranged on a long side thereof. A plurality of the trapezoidal power modules are arranged in an annular pattern so that the long side of the each of the plurality of the trapezoidal power modules faces toward an outer periphery, to thereby construct a polyphase inverter circuit.