Battery apparatus for controlling plural batteries and control method of plural batteries
First Claim
1. A battery apparatus, comprising:
- plural battery modules connected in series each having plural battery cells connected in series;
plural low order control devices which are provided in correspondence with the plural battery modules, respectively, each of the plural low order control devices controlling the plural battery cells configuring corresponding one of the plural battery modules;
a high order control device which controls the plural low order control devices;
isolating or potential converting units which connects an input terminal of the low order control device at a highest potential among the plural low order control devices, an output terminal of the low order control device at a lowest potential among the plural low order control devices, and the high order control device; and
interruption elements each of which is disposed between the output terminal of corresponding one of the plural low order control devices and the battery cell in corresponding one of the plural battery modules on a low potential side and blocks discharge current of the battery cells in the corresponding battery module, wherein terminals related to input and output of a signal are connected in an electrically non-isolated state among the plural low order control devices.
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Accused Products
Abstract
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.
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Citations
2 Claims
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1. A battery apparatus, comprising:
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plural battery modules connected in series each having plural battery cells connected in series;
plural low order control devices which are provided in correspondence with the plural battery modules, respectively, each of the plural low order control devices controlling the plural battery cells configuring corresponding one of the plural battery modules;
a high order control device which controls the plural low order control devices;
isolating or potential converting units which connects an input terminal of the low order control device at a highest potential among the plural low order control devices, an output terminal of the low order control device at a lowest potential among the plural low order control devices, and the high order control device; and
interruption elements each of which is disposed between the output terminal of corresponding one of the plural low order control devices and the battery cell in corresponding one of the plural battery modules on a low potential side and blocks discharge current of the battery cells in the corresponding battery module, wherein terminals related to input and output of a signal are connected in an electrically non-isolated state among the plural low order control devices.
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2-10. -10. (canceled)
Specification