Battery apparatus for controlling plural batteries and control method of plural batteries
First Claim
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1. A battery apparatus, comprising:
- a plurality of battery modules which are electrically coupled in series and each of which has a plurality of battery cells electrically coupled in series;
a plurality of first control devices which are respectively provided to correspond to the plurality of battery modules, each of the plurality of first control devices detecting a status of the plurality of battery cells of the corresponding one of the plurality of battery modules and being operated by the corresponding one of the plurality of battery modules acting as a power source;
a second control device which outputs an instruction signal to the plurality of first control devices;
a first signal transmission circuit which electrically couples in series signal input/output circuits respectively provided in the plurality of first control devices to thereby transmit the instruction signal output from the second control device to the plurality of first control devices serially;
a second signal transmission circuit which transmits the instruction signal output from the second control device to one of the plurality of first control devices which at first receives the instruction signal; and
a third signal transmission circuit which transmits the instruction signal to the second control device from another of the plurality of first control devices which receives the instruction signal at last, whereinwhen a signal for falling into a sleep mode is output from the second control device to the plurality of first control devices via the second signal transmission circuit, the plurality of first control devices sequentially receive the signal for falling into a sleep mode via the first signal transmission circuit from the one of the plurality of first control devices and are sequentially placed into sleep mode, and whereinwhen the signal for falling into a sleep mode returns to the second control device via the third signal transmission circuit from the another of the plurality of first control devices, the second control device is placed into sleep mode.
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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.
17 Citations
26 Claims
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1. A battery apparatus, comprising:
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a plurality of battery modules which are electrically coupled in series and each of which has a plurality of battery cells electrically coupled in series; a plurality of first control devices which are respectively provided to correspond to the plurality of battery modules, each of the plurality of first control devices detecting a status of the plurality of battery cells of the corresponding one of the plurality of battery modules and being operated by the corresponding one of the plurality of battery modules acting as a power source; a second control device which outputs an instruction signal to the plurality of first control devices; a first signal transmission circuit which electrically couples in series signal input/output circuits respectively provided in the plurality of first control devices to thereby transmit the instruction signal output from the second control device to the plurality of first control devices serially; a second signal transmission circuit which transmits the instruction signal output from the second control device to one of the plurality of first control devices which at first receives the instruction signal; and a third signal transmission circuit which transmits the instruction signal to the second control device from another of the plurality of first control devices which receives the instruction signal at last, wherein when a signal for falling into a sleep mode is output from the second control device to the plurality of first control devices via the second signal transmission circuit, the plurality of first control devices sequentially receive the signal for falling into a sleep mode via the first signal transmission circuit from the one of the plurality of first control devices and are sequentially placed into sleep mode, and wherein when the signal for falling into a sleep mode returns to the second control device via the third signal transmission circuit from the another of the plurality of first control devices, the second control device is placed into sleep mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A battery apparatus;
- comprising;
a plurality of battery modules which are electrically coupled in series and each of which has a plurality of battery cells electrically coupled in series; a plurality of first control devices which are respectively provided to correspond to the plurality of battery modules, each of the plurality of first control devices detecting a status of the plurality of battery cells of the corresponding one of the plurality of battery modules and being operated by the corresponding one of the plurality of battery modules acting as a power source; a second control device which outputs an instruction signal to the plurality of first control devices; a first signal transmission circuit which electrically couples in series signal input/output circuits respectively provided in the plurality of first control devices to thereby transmit the instruction signal output from the second control device to the plurality of first control devices serially; a second signal transmission circuit which transmits the instruction signal output from the second control device to an electrical serial coupling of the plurality of first control devices; and a third signal transmission circuit which transmits the instruction signal to the second control device from the electrical serial coupling of the plurality of first control devices, wherein when a signal for falling into a sleep mode is output from the second control device to the electrical serial coupling of the plurality of first control devices via the second signal transmission circuit, the plurality of first control devices sequentially transmit the signal for falling into a sleep mode via the first signal transmission circuit from one of the plurality of first control devices according to the order of the electrical serial coupling of the plurality of first control devices and are sequentially placed into the sleep mode, and wherein when the signal for falling into a sleep mode returns to the second control device via the third signal transmission circuit from the electrical serial coupling of the plurality of first control devices, the second control device is placed into the sleep mode. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
- comprising;
Specification