Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. When a request for switching the selected sub power storage device in use is generated, upper limits on electric power input/output to/from the selected sub power storage device are continuously varied. Thus, discontinuous variation of electric power input/output to/from the power supply system during the process for switching the selected sub power storage device can be avoided. Consequently, sudden change in a behavior of an electrically powered vehicle can be avoided.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. When the travel mode of an electrically powered vehicle is an EV mode, switching processing of a sub power storage device is performed based on the selected sub power storage device's SOC. On the other hand, when the travel mode of the electrically powered vehicle is an HV mode, control under which the SOC of the main power storage device and the plurality of sub power storage devices as a whole is kept constant is carried out, and switching of the selected sub power storage device is prohibited.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. When a request for switching the selected sub power storage device in use is generated, a converter steps up voltage on the electric power feeding line to a predetermined voltage, and thereafter a process for switching relays is performed. The predetermined voltage is higher than any of a voltage output from the main power storage device and a voltage output from a sub power storage device to be newly connected to the converter. Further, during the process for switching connection of the relays, upper limits on electric power input/output to/from the selected sub power storage device are set to 0.

Abstract: An electric powered vehicle includes a motor, an inverter, a main power storage device, and a plurality of sub power storage devices. A converter is connected to a selected one of the plurality of sub power storage devices to perform voltage conversion bidirectionally between the selected sub power storage device and an electric power feeding line. A control device executes a disconnection process to disconnect a selected sub power storage device from the converter based on a state of charge of the selected sub power storage device when there is no new sub power storage device that can replace the selected sub power storage device. Further, the control device executes a braking process for the inverter for regenerative braking by the motor. The control device prohibits, during execution of one process of a disconnection process and braking process, the other process.

Abstract: A power supply system for a hybrid vehicle includes a main power storage device and a plurality of sub power storage devices used selectively. When SOC of each power storage device decreases to an SOC control target, the running mode transitions from a CD mode of running with stored electric energy with an engine stopped to a CS mode of running while maintaining stored electric energy by power generation of the engine. An ECU determines a usage pattern of the power storage devices in the CS mode and the CD mode at startup of the power supply system following the start of vehicle driving. Further, in accordance with the determined usage pattern, the ECU appropriately sets an individual SOC target for each power storage device such that, upon ensuring stored electric energy available at the start of the CS mode, stored electric energy to be used in the CD mode is maximized.

Abstract: A shift controller controls a downshift to a low shift speed, spaced apart from a high shift speed by two or more steps, through an intermediate shift speed, by first releasing first and second shift release elements, then engaging a first shift engagement element, and finally engaging a second shift engagement element, while controlling the torque capacity of the second shift release element by feedback control. As a result of releasing the first and second shift release elements before engaging the first shift engagement element, it is possible to rev up an input rotation at maximum performance of an engine to reduce the time for shifting. As a result of the feedback control of the torque capacity of the second shift release element after engaging the first shift engagement element, a torque fluctuation at the intermediate shift speed can be reduced to avoid occurrence of an uncomfortable shift shock.

Abstract: A power supply system for a hybrid vehicle includes a main power storage device and a plurality of sub power storage devices used selectively. When SOC of each power storage device decreases to an SOC control target, the running mode transitions from a CD mode of running with stored electric energy with an engine stopped to a CS mode of running while maintaining stored electric energy by power generation of the engine. An ECU determines a usage pattern of the power storage devices in the CS mode and the CD mode at startup of the power supply system following the start of vehicle driving. Further, in accordance with the determined usage pattern, the ECU appropriately sets an individual SOC target for each power storage device such that, upon ensuring stored electric energy available at the start of the CS mode, stored electric energy to be used in the CD mode is maximized.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to a selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. Connection of the sub power storage device is switched and, when the last sub power storage is used, a request to disconnect the sub power storage device is generated based on the SOC of the sub power storage device and the vehicle state. Specifically, where the SOC is included in a disconnection forced region in which the SOC is smaller than a reference lower limit, the sub power storage device is forced to be disconnected regardless of the vehicle state.

Abstract: A shift control apparatus that disconnects and connects respective pairs of friction engagement elements during downshift to a speed spaced apart by two or more steps through an intermediate shift speed. A shift controller controls a hydraulic pressure of a second shift release element by feedback control, and in accordance with the increase in the torque capacity of the second shift release element, also controls the torque capacity of a first shift engagement element so as to be sufficiently higher than the amount of change in the torque capacity of the second shift release element. The occurrence of adverse consequences in which a shift shock is generated is effectively suppressed because a sufficient reaction force cannot be ensured during engagement switching due to insufficient torque capacity of the first shift engagement element, and since the second shift release element cannot be appropriately feedback-controlled, difficulty in control of rotation change results.

Abstract: A communication apparatus capable of establishing a SIP session from which an unnecessary media session has been removed. When determining that a SIP session established with another communication apparatus includes an unnecessary media session other than a media session necessary for communication therewith, the communication apparatus establishes a SIP session not including the unnecessary media session with the other communication apparatus.

Abstract: An electric powered vehicle includes a motor, an inverter, a main power storage device, and a plurality of sub power storage devices. A converter is connected to a selected one of the plurality of sub power storage devices to perform voltage conversion bidirectionally between the selected sub power storage device and an electric power feeding line. A control device executes a disconnection process to disconnect a selected sub power storage device from the converter based on a state of charge of the selected sub power storage device when there is no new sub power storage device that can replace the selected sub power storage device. Further, the control device executes a braking process for the inverter for regenerative braking by the motor. The control device prohibits, during execution of one process of a disconnection process and braking process, the other process.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to a selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. The sub power storage device undergoes a connection switching process, and when the last sub power storage device is currently used, then, in accordance with that sub power storage device's SOC and the vehicle's state, a request is generated to disconnect the sub power storage device and a relay is turned off. In doing so, if a process is currently performed for starting or stopping an engine, generating the request is refrained even if a decreased SOC is sensed. Similarly, if a process is performed to disconnect a sub power storage device, and therewhile a request is generated to start/stop the engine, starting the process performed for starting or stopping the engine is refrained.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. In the case of a switching-forced region where the SOC of the selected sub power storage device in use is lower than a lower limit reference value, the sub power storage device is forced to be switched regardless of the vehicle's state. In contrast, in the case of a switching-permitted region where the SOC is higher than that in the switching-forced region, a switch request is generated based on the vehicle's state under the condition that does not influence the vehicle's drivability.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. When the travel mode of an electrically powered vehicle is an EV mode, switching processing of a sub power storage device is performed based on the selected sub power storage device's SOC. On the other hand, when the travel mode of the electrically powered vehicle is an HV mode, control under which the SOC of the main power storage device and the plurality of sub power storage devices as a whole is kept constant is carried out, and switching of the selected sub power storage device is prohibited.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to a selected one of the sub power storage devices to perform voltage conversion bidirectionally between the selected sub power storage device and an electric power feeding line. A control device executes charging control for controlling input of electric power from a load device to the main power storage device and selected sub power storage device, and switching control for switching electrical connection between the plurality of sub power storage devices and electric power feeding line, according to a braking request of the electric powered vehicle. The control device prohibits or limits, until completion of one of the charging control and switching control, the other control.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to a selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. In response to decrease in SOC of the selected sub power storage device being used, a request to switch the sub power storage device is generated and accordingly a switching process for a relay is performed. Here, while a process for starting or stopping an engine is being performed, the request to switch will not be generated even when decrease in SOC is detected. Likewise, while a process for switching the sub power storage device is being performed, the process for starting or stopping the engine will not be started even when a request to start or stop the engine is generated.

Abstract: In an electrical powered vehicle including a control device for generating an input/output power command value for a power storage device and a control device for controlling a power conversion device and a rotating electric machine, provided separately, when there is a sudden change in the rotational speed of a rotating electric machine, the input/output power command value of a power storage device intrinsically set by an HV-ECU is corrected corresponding to the change in the rotational speed of the rotating electric machine by a control device MG-ECU detecting the rotational speed of the rotating electric machine, without having to wait for modification of the input/output power command value from the HV-ECU.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. When a request for switching the selected sub power storage device in use is generated, upper limits on electric power input/output to/from the selected sub power storage device are continuously varied. Thus, discontinuous variation of electric power input/output to/from the power supply system during the process for switching the selected sub power storage device can be avoided. Consequently, sudden change in a behavior of an electrically powered vehicle can be avoided.

Abstract: Disclosed is a method for extracting methacrylic acid, in which an extraction solvent is added to a methacrylic acid aqueous solution for transferring methacrylic acid to the extraction solvent. In this method, a solvent containing t-butyl methacrylate is used as the extraction solvent.

Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is connected to selected one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. When a request for switching the selected sub power storage device in use is generated, a converter steps up voltage on the electric power feeding line to a predetermined voltage, and thereafter a process for switching relays is performed. The predetermined voltage is higher than any of a voltage output from the main power storage device and a voltage output from a sub power storage device to be newly connected to the converter. Further, during the process for switching connection of the relays, upper limits on electric power input/output to/from the selected sub power storage device are set to 0.