Abstract: An electric vehicle includes: a synchronous motor; an induction motor; and a control unit configured to adjust a torque from the synchronous motor and a torque from the induction motor, wherein the control unit includes a torque varying device configured to reduce an output torque from the synchronous motor while maintaining a total drive force of the electric vehicle, and increasing an output torque from the induction motor in the case where the electric vehicle is stopped in a state in which a torque is output from the synchronous motor. Accordingly, there is provided an electric vehicle capable of restraining deterioration of drivability and performing thermal protection of a motor and a control unit.

Abstract: A substrate treatment method for treating a substrate including a first silicon nitride film provided on a front surface thereof and a silicon oxide film provided on the first silicon nitride film to remove the first silicon nitride film and the silicon oxide film from the substrate includes: a first phosphoric acid treatment step of supplying a phosphoric acid aqueous solution having a predetermined first concentration to the substrate held by a substrate holding unit to treat the substrate with the first concentration phosphoric acid aqueous solution for the removal of the first silicon nitride film; and a second phosphoric acid treatment step of supplying a phosphoric acid aqueous solution having a second concentration lower than the first concentration to the substrate to treat the substrate with the second concentration phosphoric acid aqueous solution for the removal of the silicon oxide film after the first phosphoric acid treatment step.

Abstract: A plating device equipped with a plating tank and an impurity removal mechanism disposed so as to remove impurities from a plating solution in the plating tank or a plating solution to be supplied to the plating tank, in which the impurity removal mechanism includes at least one of a carboxylic acid removal mechanism and an alcohol removal mechanism.

Abstract: The inventive substrate treatment apparatus includes a spin chuck which horizontally holds and rotates a wafer; a heater which is disposed in opposed relation to a lower surface of the wafer held by the spin chuck and heats the wafer from a lower side; a phosphoric acid nozzle which spouts a phosphoric acid aqueous solution to a front surface (upper surface) of the wafer held by the spin chuck; and a suspension liquid nozzle which spouts a silicon suspension liquid to the front surface of the wafer held by the spin chuck. The wafer is maintained at a higher temperature on the order of 300° C. and, in this state, a liquid mixture of the phosphoric acid aqueous solution and the silicon suspension liquid is supplied to the front surface of the wafer.

Abstract: An electronic control unit includes calculating a slip frequency of a rotating electric machine from a torque instruction value to the rotating electric machine and a target value of output efficiency to the rotating electric machine, calculating a frequency of the instruction signal from the slip frequency and a rotational frequency of the rotating electric machine, the slip frequency being changed by changing the target value of the output efficiency with the torque instruction value maintained and changing the slip frequency so as to change the frequency of the instruction signal to out of an inverter lock frequency band when the frequency of the instruction signal is included in the inverter lock frequency band.

Abstract: A substrate processing method includes a phosphoric acid processing step of supplying a phosphoric acid aqueous solution, which contains silicon and has a silicon concentration lower than a saturation concentration, to a front surface of a substrate, a liquid volume reducing step of reducing a volume of the phosphoric acid aqueous solution on the substrate, after the phosphoric acid processing step, and a rinse replacing step of supplying a rinse liquid having a temperature lower than that of the phosphoric acid aqueous solution supplied to the front surface of the substrate in the phosphoric acid processing step to the front surface of the substrate covered with the phosphoric acid aqueous solution at least partially, after the liquid volume reducing step.

Abstract: A phosphoric acid aqueous solution in a production tank circulates a circulation system. The circulation system is configured to be switchable between a first state in which the phosphoric acid aqueous solution is circulated through a bypass pipe and a second state in which the phosphoric acid aqueous solution is circulated through a filter. When a silicon containing liquid is supplied to the production tank, the circulation system is switched to the first state. When silicon particles are uniformly dispersed in the phosphoric acid aqueous solution, the circulation system is switched to the second state. Alternatively, a filtration member is provided in the production tank. The silicon containing liquid is stored in the filtration member. The filtration member is dipped in the phosphoric acid aqueous solution stored in the production tank. The silicon containing liquid is permeated through the filtration member, and is mixed with the phosphoric acid aqueous solution.

Abstract: When a command frequency to a rotating electric machine is included in an inverter lock frequency band, a frequency switching section switches the command frequency to a frequency outside the inverter lock frequency band by changing a slip frequency command value. In response to this, a torque command change section changes a torque command to a second rotating electric machine other than a first rotating electric machine of which the slip frequency is changed such that a torque fluctuation caused by the change of the slip frequency command value is canceled out.

Abstract: A high-frequency transmission line in which the alternating-current resistance is low is provided. A high-frequency transmission line 2 is a high-frequency transmission line 2 to transmit an alternating-current electric signal, and contains metal and carbon nanotube, and the carbon nanotube is unevenly distributed at a peripheral part 8 of a cross-section that is of the high-frequency transmission line 2 and that is perpendicular to a transmission direction of the alternating-current electric signal.

Abstract: A high-frequency transmission line in which the alternating-current resistance is low and that is hard to disconnect is provided. A high-frequency transmission line 2 is a high-frequency transmission line 2 to transmit an alternating-current electric signal, and contains metal and carbon nanotube, and the carbon nanotube is unevenly distributed at a central part 6 of a cross-section that is of the high-frequency transmission line 2 and that is perpendicular to a transmission direction of the alternating-current electric signal.

Abstract: An electrically-driven vehicle includes: a battery; an induction motor connected to the battery; a synchronous motor connected to the battery that is connected to the induction motor; and at least one electronic control unit configured to change a slip frequency command of the induction motor based on a predetermined frequency of current fluctuation when a temperature of the battery is low such that an amplitude of the current fluctuation increases, the current fluctuation being any one of current fluctuation of a battery current or current fluctuation of a battery-related current that relates to the battery current.

Abstract: A control device for an induction motor that drives a vehicle includes an electronic control unit. The electronic control unit i) controls torque of the induction motor when an inverter that controls supply of electric current to the induction motor is in a locked state, so as to release the inverter from the locked state, ii) determines whether the inverter is in the locked state, iii) controls a slip frequency of the induction motor when it determines that the inverter is in the locked state, and iv) superimposes a frequency that actual torque does not substantially respond, on the slip frequency, so that an electric frequency lies in a region outside a lock region in which the inverter is in the locked state.

Abstract: A substrate processing apparatus includes a substrate holding unit that holds a substrate in a horizontal position, a processing liquid supplying unit that supplies the processing liquid to the surface of the substrate held by the substrate holding unit, a substrate rotating unit that rotates the substrate held by the substrate holding unit, a heater that opposes the substrate held by the substrate holding unit, a heater supporting member that supports the heater independently of the substrate holding unit and a moving unit that moves at least one of the substrate holding unit and the heater supporting member such that the heater and the substrate held by substrate holding unit approach/leave each other.

Abstract: In a substrate processing apparatus, a phosphoric acid aqueous solution is supplied to a processor, and a liquid collection from the processor is concurrently performed. Further, a silicon concentration is adjusted, to supply an adjusted processing liquid to the processor. Thus, a phosphoric acid aqueous solution film is formed on the substrate. The liquid film is heated by a heating device. The heating device has lamp heaters in a casing made of a silica glass. The phosphoric acid aqueous solution on the substrate is irradiated with infrared rays. A nitrogen gas flowing in a gas passage formed in the casing is discharged towards a position outside an outer periphery of the substrate.

Abstract: An electric vehicle driven by a synchronous motor 21 and an induction motor 31, and braked with a first regenerative torque BT1 generated by the synchronous motor generator 21 and a second regenerative torque BT2 generated by the induction motor generator 31. The ratio of the first regenerative torque BT1 to the second regenerative torque BT2 is changed in accordance with a state of charge (SOC) of a battery 11. In this way, a switching frequency from a regenerative brake to a hydraulic brake is restricted to improve drivability when a state of charge (SOC) of the battery 11 is high.

Abstract: An electric vehicle including: an induction motor generator; a synchronous motor generator; an inverter that converts a supplied high voltage VH to an AC voltage to be supplied to the induction motor generator and the synchronous motor generator; and a control unit that adjusts the rotational speed and torque output of the induction motor generator and the synchronous motor generator, wherein the control unit includes a voltage oscillation reduction program for causing the induction motor generator to generate voltage oscillation in a phase opposite to voltage oscillation of the high voltage VH to reduce the voltage oscillation of the high voltage VH when the high voltage VH supplied to the inverter oscillates at an amplitude equal to or greater than a predetermined voltage value due to rotation of the synchronous motor generator. As a result, the voltage oscillation in a PCU of the electric vehicle is reduced.

Abstract: A substrate treatment method for treating a substrate including a first silicon nitride film provided on a front surface thereof and a silicon oxide film provided on the first silicon nitride film to remove the first silicon nitride film and the silicon oxide film from the substrate includes: a first phosphoric acid treatment step of supplying a phosphoric acid aqueous solution having a predetermined first concentration to the substrate held by a substrate holding unit to treat the substrate with the first concentration phosphoric acid aqueous solution for the removal of the first silicon nitride film; and a second phosphoric acid treatment step of supplying a phosphoric acid aqueous solution having a second concentration lower than the first concentration to the substrate to treat the substrate with the second concentration phosphoric acid aqueous solution for the removal of the silicon oxide film after the first phosphoric acid treatment step.

Abstract: During traveling of an electric drive vehicle 100, if a quantity of regenerative power generated by a synchronous motor generator 40 is greater than a first predetermined value, a slip frequency S of an induction motor generator 50 is changed while maintaining a torque output of the induction motor generator 50, thereby increasing power consumption by the induction motor generator 50. With this structure, it is possible to effectively protect electric devices when excessive power regeneration occurs.

Abstract: An electric vehicle includes: a synchronous motor; an induction motor; and a control unit configured to adjust a torque from the synchronous motor and a torque from the induction motor, wherein the control unit includes a torque varying device configured to reduce an output torque from the synchronous motor while maintaining a total drive force of the electric vehicle, and increasing an output torque from the induction motor in the case where the electric vehicle is stopped in a state in which a torque is output from the synchronous motor. Accordingly, there is provided an electric vehicle capable of restraining deterioration of drivability and performing thermal protection of a motor and a control unit.

Abstract: A substrate processing method includes a water removing unit for removing water from a substrate, a silylating agent supplying unit for supplying a silylating agent to the substrate and an etching agent supplying unit for supplying an etching agent to the substrate. A control unit controls the said units to execute a water removing step, a silylating step and an etching step in that order.