BATTERY SYSTEM, ELECTRIC VEHICLE, MOBILE UNIT, ELECTRIC POWER STORAGE DEVICE AND POWER SUPPLY DEVICE
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Accused Products
Abstract
A battery ECU provides an N-th arithmetic processing device with an ID assignment signal. The N-th arithmetic processing device receives the ID assignment signal, and stores an ID that is transmitted by the battery ECU. The battery ECU provides an i-th arithmetic processing device (i is a natural number from N to 2) with a command for providing an ID assignment signal. The i-th arithmetic processing device provides the (i−1)-th arithmetic processing device with the ID assignment signal in response to the command for providing an ID assignment signal. The (i−1)-th arithmetic processing device receives the ID assignment signal, and stores an ID that is transmitted by the battery ECU.
31 Citations
16 Claims
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1-10. -10. (canceled)
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11. A battery system comprising:
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a control device; and 1st to N-th battery modules, wherein each of said battery modules includes a battery cell group that includes one or a plurality of battery cells, a voltage detection portion that is arranged corresponding to said battery cell group, and detects voltages of the battery cells in said battery cell group, a processing device that transmits the detection result detected by said voltage detection portion to said control device, an abnormality detection portion that can detect overcharge or overdischarge abnormal conditions of said battery cell group, and issue a detection signal indicating the abnormal conditions, and a selection portion that selectively provides one of said assignment signal, which is provided from said processing device, and the detection signal, which is issued by said abnormality detection portion, wherein said control device and said processing devices of said battery modules are connected to each other through a communication line, wherein said processing devices of 1st to N-th battery modules can be defined as 1st to N-th processing devices, wherein said control device is connected to the N-th processing device through a first signal line, wherein said selection portion of the i-th (i is a natural number from N to
2) battery module is connected to said abnormality detection portion and said processing device of the (i−
1)-th battery module through a second signal line,wherein said selection portion of the 1st battery module is connected to said control device through a third signal line, wherein in an identifier assignment mode, said control device provides the N-th processing device with an N-th assignment signal as a command for storing an identifier through said first signal line, and then transmits an identifier of the N-th processing device through said communication line, wherein said control device provides with the i-th processing device a command for providing an (i−
1)-th assignment signal to the (i−
1)-th processing device, and then transmits an identifier of the (i−
1)-th processing device through said communication line in order from the N-th to 2nd processing devices,wherein when said i-th processing device receives the i-th assignment signal, said i-th processing device stores said identifier of the i-th processing device, which is transmitted by said control device, and provides the (i−
1)-th processing device with the (i−
1)-th assignment signal in response to said command for providing an (i−
1)-th assignment signal, and said selection portion of the i-th battery module provides the (i−
1)-th processing device with said (i−
1)-th assignment signal, which is provided from said i-th processing device, through the said second signal line,wherein when the 1st processing device receives the 1st assignment signal, the 1st processing device stores said identifier of the 1st processing device, which is transmitted by said control device, and wherein in a normal mode, said selection portion of the i-th battery module provides said (i−
1)-th abnormality detection portion with said detection signal, which is issued by said i-th abnormality detection portion, through the said second signal line, and said selection portion of the 1st battery module provides said control device with said detection signal, which is issued by said 1st abnormality detection portion, through said third signal line. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification