Hitachi, Ltd.

Shin-kobe Electric Machinery Co., Ltd.

Hitachi Vehicle Energy, Ltd.

Other

Hitachi Automotive Systems, Ltd.

Tsuyoshi Kai

Akihiko Kudo

Akihiko Emori

Hideki Miyazaki

Yoshinori Aoshima

Tunemi Aiba

Masahiro Koyama

Yasuyuki Momoi

Norihisa Miyake

Masahiro Ueda

Hiroshi Sakairi

Tsutomu Fujimoto

Shizuko Hattori

Yuji Yoshioka

A leak detection device includes a pulse signal outputting portion that outputs predetermined pulse signals to a positive connecting wire connected to a positive side of a battery and a negative connecting wire connected to a negative side of the battery. A response waveform detecting portion of the leak detection device detects a positive response waveform for the pulse signal output to the positive connecting wire and a negative response waveform for the pulse signal output to the negative connecting wire. An amplitude ratio calculating portion calculates an amplitude ratio based on the positive response waveform and the negative response waveform, and a leak detecting portion detects a leak between the battery and a ground based on the amplitude ratio.

Leak detection device

Lower order control devices control plural battery cells configuring plural battery modules. An input terminal of the low order control device in the highest potential, an output terminal of the low order control device in the lowest potential, and a high order control device are connected by isolating units, photocouplers. Diodes which prevent a discharge current of the battery cells in the battery modules are disposed between the output terminal of the low order control device and the battery cells in the battery module on the low potential side. Terminals related to input/output of a signal are electrically connected without isolating among the plural low order control devices.

Battery apparatus for controlling plural batteries and control method of plural batteries

A cell controller having excellent productivity is provided. A cell-conhas 12 ICs IC-to IC-mounted on a substrate, and these ICs detect voltages of respective cells constituting a cell pack, perform capacity adjustment on the respective cells, and are mounted two by two on rectangular longer sides of a rectangular continuous straight line L-L' defined on a substrate from the IC-on a highest potential side to the IC-on a lowest potential side continuously in order of potential differences of the corresponding cell packs. Distances between the rectangular shorter sides of the rectangular continuous straight line L-L&#x2032; are the same. On the cell-con, between the IC-to IC-having different ground voltages, each of the ICs has signal output terminals connected to signal input terminals of a lower order IC respectively in an electrically non-insulated state.

Cell controller, battery module and power supply system

A computer-implemented control method and a control apparatus of factory automation system having a cell formed by a plurality of working machines including at least one automated machine to execute a series of works in accordance with a control program. From a cell control program including specifications of working of entire cell that is input to the computer, information relating to working sequence of a plurality of working machines and information about control of inputs and outputs of a plurality of working machines are described, the specifications and informations are extracted by the computer. On the basis of the extracted information, a sequence control program by which control of the working sequence of a plurality of working machines and control of inputs and outputs of a plurality of working machines is generated by the computer are described. From the cell control program, information about operation control of the automated machine and information about synchronization of operation of the working machines are extracted by the computer. On the basis of the extracted information, an automated machine control program, by which processing for exercising control over positioning and operation trajectory of the automated machine are described, is generated by the computer. And working of the cell is controlled in accordance with the sequence control program and the automated machine control program.

Control method and control apparatus of factory automation system

Growing community of inventors

Ohira, Japan

Tsuyoshi Kai