Abstract: A power converter includes a capacitor for smoothing a voltage entering therein, first and second switching units, a reactor, an isolated transformer, a second capacitor, and a controller for controlling the switching of the first and second switching units. The controller converts direct-current power to alternating-current power via the reactor and the isolated transformer and converts the alternating-current power to direct-current power via the second capacitor. The controller includes a phase-shift operation unit for taking at least any of first switching control signals as a reference signal and for calculating a phase shift that shifts the phase of the reference signal, as well as a logic operation unit for performing a logic operation that takes the signal resulting from shifting the phase of the reference signal by exactly the phase shift as input and for outputting a second switching control signal.

Abstract: A vehicle control device according to one aspect of the present invention includes a storage device configured to store a program, and a processor that is connected to the storage device, in which the processor executes a program stored in the storage device, thereby detecting a road surface condition of a road surface on which a host vehicle is present, detecting a preceding vehicle that is present in front of the host vehicle and moves in the same direction as the host vehicle, deriving a spray distance of a sprayed object caused by the preceding vehicle when the preceding vehicle is detected and the road surface condition is a predetermined condition, and calculating a recommended inter-vehicle distance on the basis of the spray distance.

Abstract: A door mirror rotation control device includes a control part controlling drive of a motor to cause a door mirror to switch between a folded status and an unfolded status. The control part includes a motor drive controller controlling drive of the motor and a motor action determination part determining a drive content of the motor. The motor action determination part detects raindrop information during drive of the motor, and determines the drive content of the motor as a normal action or a specific action based on whether the raindrop information is acquired. Compared to the normal action, a frequency of rotation changes of the motor during a period until drive of the motor ends is high in the specific action. The motor drive controller is configured to control drive of the motor in the normal action or the specific action determined by the motor action determination part.

Abstract: A system and method for sensor driving voltage control are provided. The system for sensor driving voltage control includes a sensor arranged on an outer side of a vehicle, an external temperature detector, and a control device. The external temperature detector is configured to detect an external temperature. The control device is configured to control a voltage value provided to the sensor and includes a voltage value determining unit configured to determine a voltage value for current supply to the sensor and a voltage value adjusting unit configured to adjust the voltage value determined by the voltage value determining unit. The voltage value determining unit sets a high voltage value higher than a normal voltage value when the external temperature detected by the external temperature detector is below a predetermined temperature. The normal voltage value is a voltage value set when the external temperature is above the predetermined temperature.

Abstract: A driving circuit that drives a switching element, the driving circuit includes: a controller that includes a first terminal connected to a gate terminal of the switching element and a second terminal connected to a source terminal of the switching element, and outputs a control signal from the first terminal to the gate terminal; a first capacitor and a first resistor connected in parallel; and a second capacitor and a second resistor connected in parallel, in which the first capacitor and the first resistor are connected in series to a first connecting wire for connecting the gate terminal and the first terminal on the gate terminal side of the first connecting wire, and in which the second capacitor and the second resistor are connected in series to the first connecting wire on the first terminal side of the first connecting wire.

Abstract: An overcurrent protection circuit includes a first switching element including a fourth terminal, a sixth terminal connected to a first terminal, and a fifth terminal, and a second switching element including a seventh terminal connected to the fifth terminal, an eighth terminal connected to the fourth terminal, and a ninth terminal. The first switching element electrically connects the sixth terminal and the fifth terminal in response to detecting a voltage value between the first terminal and a third terminal of the switching device exceeding a predetermined threshold based on the predetermined threshold voltage input into the fourth terminal. The second switching element electrically connects, in response to the sixth terminal and the fifth terminal of the first switching element being electrically connected to each other, the eighth terminal and the ninth terminal to lower the predetermined threshold voltage input into the fourth terminal of the first switching element.

Abstract: This power converter device is provided with a capacitor for smoothing a voltage entering therein; a first switching unit; a second switching unit; a reactor; an isolated transformer; a second capacitor; and a controller for controlling the switching of the first switching unit and the second switching unit; and the controller converting direct-current power to alternating-current power via the reactor and the isolated transformer, and converting said alternating-current power to direct-current power via the second capacitor; wherein, the controller includes a phase-shift operation unit for taking at least any of first switching control signals as a reference signal, and calculating a phase shift that shifts the phase of the reference signal; and a logic operation unit for performing a logic operation that takes the signal resulting from shifting the phase of the reference signal by exactly the phase shift as input and outputting a second switching control signal.

Abstract: In a vehicle door mirror, an electric retraction unit is disposed between a mirror housing and a shaft pivotably supporting a base end part of the mirror housing, and at least three housing fastening parts are fastened to the mirror housing and provided integrally with a unit constituent member forming part of the electric retraction unit. A vibration suppression arm part is provided integrally with the unit constituent member and extends in a direction that goes away from at least two of the at least three housing fastening parts. A remaining one housing fastening part of the at least three housing fastening parts is formed in a tip end part of the vibration suppression arm part. Accordingly, the vehicle door mirror can give an effective vibration suppression effect while enhancing the workability and suppressing any increase in the cost.

Abstract: A method of forming a curved-shaped processing hole in a workpiece by electromechanical machining includes a step of feeding an electrolytic solution through an inner channel of a processing electrode and jetting the electrolytic solution from an outlet opening of the inner channel disposed on a tip surface of the processing electrode, a step of applying a potential difference between the processing electrode and the workpiece while jetting the electrolytic solution from the outlet opening of the processing electrode, and a step of forming the curved-shaped processing hole in the workpiece. In the jetting step, at least one of a current density distribution on the tip surface of the processing electrode or a flow velocity distribution of the electrolytic solution jetted from the outlet opening is eccentric to a downstream side of a curving direction of the processing hole with respect to an axial center of the tip surface.

Abstract: An electrical discharge machining method includes selectively immersing only a portion of a workpiece in an electrical discharge machining liquid such that a machining object portion included in the portion of the workpiece is opposed to an electrode immersed in the electrical discharge machining liquid and applying an electrical discharge machining to the machining object portion by applying a voltage between the electrode and the workpiece in a state where the portion of the workpiece is selectively immersed in the electrical discharge machining liquid.

Abstract: A vehicle imaging apparatus is attached to a rear part of a vehicle and is directed to a vehicle rearward direction. The vehicle imaging apparatus includes: an imaging lens that faces a vehicle rearward direction; a casing that holds the imaging lens; and a flow adjustment protrusion. The flow adjustment protrusion protrudes to a vehicle downward direction from a lower position of the imaging lens of the casing.

Abstract: Provided is a washer liquid supply system in a simple structure and capable of improving the capacity of washing an object of a vehicle. A washer liquid supply system includes: a washer tank mounted on a vehicle to store washer liquid; a supply section mounted on the vehicle to supply the washer liquid in the washer tank to a window shield of the vehicle; and a connecting member being a bubbling section mounted on the vehicle to make the washer liquid contain bubbles, wherein the supply section supplies the washer liquid containing the bubbles to the window shield.

Abstract: A dummy ring assembly for removal is provided with a plurality of dummy rings. Each of the dummy rings has a dummy shroud section fitted into a vane ring groove of a casing into which a shroud of a vane segment is fitted, and has an arc shape whose central angle centered on a rotational axis is less than 90°. The dummy shroud sections of the plurality of dummy rings are fitted sequentially into the vane ring groove of the casing. The vane segment is removed from the casing by moving the dummy rings in a circumferential direction along the vane ring groove.

Abstract: In a vehicle door mirror, an electric retraction unit is disposed between a mirror housing and a shaft pivotably supporting a base end part of the mirror housing, and at least three housing fastening parts are fastened to the mirror housing and provided integrally with a unit constituent member forming part of the electric retraction unit. A vibration suppression arm part is provided integrally with the unit constituent member and extends in a direction that goes away from at least two of the at least three housing fastening parts. A remaining one housing fastening part of the at least three housing fastening parts is formed in a tip end part of the vibration suppression arm part. Accordingly, the vehicle door mirror can give an effective vibration suppression effect while enhancing the workability and suppressing any increase in the cost.

Abstract: An object of the present invention is to easily remove last-stage turbine blades. Provided is an exhaust chamber inlet-side member that has an annular shape around a rotor so as to form a part of an inner diffuser at a position facing, from the axially downstream side, base ends of last-stage turbine blades disposed on the most downstream side in the axial direction, and that is divided in the circumferential direction and provided so as to be detachable from the inner diffuser. When the exhaust chamber inlet-side member is dismounted from the inner diffuser, a space on the axially downstream side from the last-stage turbine blades is cleared.

Abstract: A washer liquid supply system is disclosed which includes: a washer tank mounted on a vehicle to store washer liquid; a supply section mounted on the vehicle to supply the washer liquid in the washer tank to an object of the vehicle; a heat-retaining tank mounted on the vehicle and disposed between the washer tank and the supply section to temporarily store the washer liquid supplied from the washer tank to the supply section; a delivering section mounted on the vehicle to deliver the washer liquid stored in the washer tank to the supply section through the heat-retaining tank; and a control section that controls the delivering section, wherein the control section controls the delivering section to temporarily increase a delivering amount of the washer liquid at an initial time of supplying the washer liquid.

Abstract: A method of forming a curved-shaped processing hole in a workpiece by electromechanical machining includes a step of feeding an electrolytic solution through an inner channel of a processing electrode and jetting the electrolytic solution from an outlet opening of the inner channel disposed on a tip surface of the processing electrode, a step of applying a potential difference between the processing electrode and the workpiece while jetting the electrolytic solution from the outlet opening of the processing electrode, and a step of forming the curved-shaped processing hole in the workpiece. In the jetting step, at least one of a current density distribution on the tip surface of the processing electrode or a flow velocity distribution of the electrolytic solution jetted from the outlet opening is eccentric to a downstream side of a curving direction of the processing hole with respect to an axial center of the tip surface.

Abstract: An electrical discharge machining method includes a step of selectively immersing only a portion of a workpiece in an electrical discharge machining liquid such that a machining object portion included in the portion of the workpiece is opposed to an electrode immersed in the electrical discharge machining liquid and a step of applying an electrical discharge machining to the machining object portion by applying a voltage between the electrode and the workpiece in a state where the portion of the workpiece is selectively immersed in the electrical discharge machining liquid, the portion including the machining object portion.

Abstract: A washer liquid supply system is disclosed which includes: a washer tank mounted on a vehicle to store washer liquid; a supply section mounted on the vehicle to supply the washer liquid in the washer tank to an object of the vehicle; a heat-retaining tank mounted on the vehicle and disposed between the washer tank and the supply section to temporarily store the washer liquid supplied from the washer tank to the supply section; a delivering section mounted on the vehicle to deliver the washer liquid stored in the washer tank to the supply section through the heat-retaining tank; and a control section that controls the delivering section, wherein the control section controls the delivering section to temporarily increase a delivering amount of the washer liquid at an initial time of supplying the washer liquid.

Abstract: A washer liquid supply system is disclosed which includes: a supply section mounted on a vehicle to supply the washer liquid in the washer tank to an object of the vehicle; and a bubbling section to make the washer liquid contain bubbles. The supply section integrally includes the bubbling section.