Gs Yuasa International Ltd.

Omron Corporation

Japan Storage Battery Co., Ltd.

Daisuke Konishi

Takeshi Nakamoto

Takeyuki Shiraishi

Nan Ukumori

Takeshi Itagaki

Yoshihiko Mizuta

Shingo Hayashi

Tomohiro Kawauchi

Tomoshige Inoue

Jun Ikemoto

Hayato Tawa

Kazuyuki Kawamoto

Hideji Nakamura

An object is to shorten time required for visual inspection. A visual inspection device () configured to inspect an appearance of an inspection object (), the visual inspection device () including: an imager () configured to image the inspection object () arranged at a predetermined position of the visual inspection device (); and a height measurer () configured to measure a height of the inspection object () carried into the visual inspection device () or carried out from the visual inspection device ().

External appearance inspection apparatus and external appearance inspection method

In a method of controlling a flying object, from the flying objectthat includes a flying object propulsion apparatusand an energy storage apparatushaving a plurality of energy storage devicesand configured to supply electricity to the flying object propulsion apparatus, one or a plurality of the energy storage devicesare separated.

Method of controlling flying object, flying object, and computer program

An energy storage system used in a flight vehicle includes: a plurality of energy storage apparatuses; and a power transfer circuit that is connected to the plurality of energy storage apparatuses and transfer electric power between the plurality of energy storage apparatuses.

Energy storage system

In an inspection apparatus for an assembled battery having a plurality of energy storage devices connected in series, based on a voltage difference between a first energy storage device with the first-lowest voltage and a second energy storage device with the second-lowest voltage during charge or discharge among the plurality of energy storage devices, an abnormality of the first energy storage device is detected.

Inspection apparatus, inspection method, inspection program, and assembled battery system

Provided is a technique capable of more accurately determining a solder protruding defect in an appearance inspection device that acquires an image of an inspection region of an inspection target and measures a height of a predetermined place in the inspection region with a height measurement device. The appearance inspection device includes: an imaging unit (); a height measurement unit (); a moving mechanism () that moves the imaging unit () and the height measurement unit (). When a restricted region (M) in the inspection target is irradiated with the measurement light emitted from the height measurement unit (), the determination unit restricts defect determination based on the information on the height of the predetermined place measured by the height measurement unit ().

Appearance inspection device and defect inspection method

A power storage devicecomprises: a plurality of power storage elements C-Cthat are connected in series; energy transfer circuitsprovided respectively to the plurality of power storage elements C-C; a common busto which the energy transfer circuitsof the plurality of power storage elements C-Care commonly connected; and a control device. Each energy transfer circuitincludes one or a plurality of switching transformers Tr, each switching transformer having a first windingA that is connected to the power storage elements C-Cand a secondary windingB that is connected to the common bus. The control deviceuses the switching transformers Tr of the energy transfer circuitsto transfer energy between the power storage elements via the common bus, thereby equalizing the voltages of the power storage elements C-C. The common busis in an electrically floating state.

Energy storage apparatus

A protective device connected between an external terminal provided in an energy storage apparatus and a power cable extending from a vehicle, the protective device includes a current interruption device that interrupts electric conduction between the vehicle and the energy storage apparatus in response to a command of a CPU in a battery management device provided in the energy storage apparatus.

Protective device

An energy storage apparatus for engine start-up includes: an energy storage device, a first switch provided in a first energizing path to the energy storage device, a step-down circuit provided in a second energizing path to the energy storage device, and a controller. The controller turns the first switch on to discharge through the first energizing path at engine start-up, and turns the first switch off to select the second energizing path if an output voltage of a vehicle generator is higher than a predetermined voltage to cause the output voltage of the vehicle generator to be stepped down with the step-down circuit to charge the energy storage device.

Energy storage apparatus for engine start-up, method for controlling the same, and vehicle

An energy storage apparatus includes: an energy storage device; a voltage detecting unit for detecting a voltage of the energy storage device; an energization control unit for controlling energization of the energy storage device; and a control unit. The control unit performs a short-circuit detecting process for detecting an internal short-circuit based on a change in state of the energy storage device with charging of the energy storage device.

Energy storage apparatus, vehicle, internal short-circuit detection controlling method for energy storage apparatus, and charge controlling method for energy storage apparatus

A power storage apparatus includes a plurality of power storage devices, a switch provided on a current-carrying path to the plurality of power storage devices, a voltage detecting unit that detects respective voltages of the power storage devices, and a control unit. The control unit switches a duty ratio of the switch so as to prevent or delay the voltages of the power storage devices from reaching an upper limit voltage during the charge.

Power storage apparatus, method for controlling power storage apparatus, and vehicle

A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected, and to determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range.

Switch failure diagnosis device and electric storage apparatus

A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to: select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected; and determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range.

Voltage dividing circuits P,to P,are connected between the GND line connected to a battery B and the positive terminals of cells C,to C,, respectively. Correcting discharging circuits D,to D,are connected between an output line on the side of the positive terminal of the battery B and the positive terminals of the cells C,to C,, respectively. The amounts of discharges of the cells due to the correcting discharging circuits D,to D,are set to be equal to those of the cells due to the voltage dividing circuits P,to P,, respectively, thereby leveling the capacities of the cells.

Capacity leveling circuit for a battery group

Forced discharging circuits each of which is configured by connecting in series a transistor, a reverse blocking Zener diode, and a discharging resistor are connected between positive and negative output terminals of cells, respectively. In each of the Zener diodes, the Zener voltage is set to be substantially equal to the cut-off voltage of discharge of the corresponding cell. The bases of the transistors are connected to a switching control circuit. The transistor of each of the forced discharging circuits is set so as to have a larger on-duty ratio, as the cell to which the forced discharging circuit is connected is remoter from a ground line, so that the average currents flowing through the cells are equal to one another.

Growing community of inventors

Kyoto, Japan

Daisuke Konishi