Honda Motor Co., Ltd.

Kabushiki Kaisha Toshiba

Yuki Kuwano

Ryota Kitamoto

Kazuto Kuroda

Mami Mizutani

Shinichiro Kosugi

Nobuo Shibuya

Ryuichi Morikawa

Kenichi Shimizu

Yasuhiro Miyamoto

Shuji Ono

Masayuki Kubota

Nobutaka Nakajima

Yukitaka Monden

Yasuyuki Ito

Takashi Akiba

Fumiyuki Yamane

Takamasa Mori

Kotaro Shigeno

The electric power supply device supplies electric power to a work machine. The electric power supply device includes a fuel cell and a utility connecting section for transferring utility to be utilized for an operation of a fuel cell between the work machine and the electric power supply device. A control device for controlling the electric power supply device for supplying electric power to the work machine includes a rated capability obtaining section for obtaining information indicating a rated value of a capability with which the work machine supplies the utility to the fuel cell in response to the electric power supply device being mounted in the work machine, or the electric power supply device being able to utilize the utility, and an operating condition determining section for determining an operating condition of the electric power supply device based on the rated value.

Control device, electric power supply device, work machine, control method and computer readable recording medium for controlling an electric power supply device configured to supply electric power to a work machine

A power supply control system includes: an electric device; an inverter; a first drive unit including a first fuel cell system, a first voltage converter, and a first battery; a second drive unit including a second fuel cell system, a second voltage converter, and a second battery; and a control unit that controls the inverter and/or the first fuel cell system so that a first current value flowing through the first battery reaches a target value of the first current value and controls the second voltage converter and/or the second fuel cell system so that a second current value flowing through the second battery reaches the target value of the first current value.

Power supply control system and power supply control method

An electric power supply device supplies electric power to a work machine having an electric power source. The electric power supply device includes a fuel cell different from the electric power source and an electric power connecting section for transferring electric power between the electric power source and the electric power supply device. A control device for controlling the electric power supply device includes a rated capability obtaining section for obtaining the information indicating the rated value of the charge and discharge capability of the electric power source of the work machine in response to the electric power supply device being mounted in the work machine or the electric power supply device being able to utilize the electric power of the electric power source, and an operating condition determining section for determining the operating condition of the electric power supply device based on the rated value.

Control device, electric power supply device, work machine, control method, and computer readable recording medium

A power feed control system includes: a first drive unit configured to include a first electrically driven device, a first inverter, a first fuel battery system, and a first voltage converter; a second drive unit configured to include a second electrically driven device, a second inverter, a second fuel battery system, and a second voltage converter; a common battery; and a control unit configured to perform control of the first inverter or/and the first voltage converter such that each current value of the first inverter and the first fuel battery system achieves a target value of a first current value that is determined on the basis of the first current value flowing between the first drive unit and the battery and a second current value flowing between the second drive unit and the battery and perform control of the second inverter or/and the second voltage converter such that each current value of the second inverter and the second fuel battery system achieves a target value of the second current value that is determined on the basis of the first current value flowing between the first drive unit and the battery and the second current value flowing between the second drive unit and the battery.

Power feed control system and power feed control method

According to one embodiment, a device includes a power management module to which a power is supplied from an external power source, a power source supply circuit to which a power is supplied from the power management module via a first input terminal, a latch circuit configured to be operated by a power supplied from the power supply circuit or a power supplied via a second input terminal, a circuit configured to output a logic signal that sets a shutdown signal output from the latch circuit to a third input terminal, and a logic communication circuit to which a logic signal is supplied via the third input terminal and which supplies the logic signal to a forth terminal of the larch circuit. The shutdown signal output from the latch circuit is set to an predetermined level when the logic signal is set to a second level from a first level.

Battery management device, secondary battery device, and vehicle

A battery system includes a battery unit in which battery arms are connected in parallel, and a charge/discharge control device that controls charge/discharge of the battery unit. Each of the battery arms includes: a battery composed of one or more battery cells connected in series; a switch connected in series to the battery; and a battery monitoring device that, in a case of having detected abnormality of the battery, opens the switch to thereby isolate the battery arm including the abnormal battery, and sends a switch opening signal indicating that the switch has been opened to the charge/discharge control device. The charge/discharge control device performs a control to reduce a charge/discharge current or charge/discharge power of the battery unit when the switch opening signal is sent from the battery monitoring device of the battery unit to the charge/discharge control device.

Battery system using battery unit in which battery arms are connected in parallel

According to one embodiment, the power supply management portion includes a timer configured to output an ON signal every time set by the control circuit, an OR circuit configured to receive supply of an output signal from the timer, an external signal supplied from outside, and a switch control signal output from the control circuit, and a switch circuit configured to switch output of the power source voltage from an external power source according to an output signal from the OR circuit, and the control circuit turns on a switch control signal after confirming which of the output signal from the timer or the external signal has turned on the switch circuit and turns off the switch control signal when both of the output signal from the timer and the signal supplied from outside are turned off.

Growing community of inventors

Tokyo, Japan

Yuki Kuwano