| US 7,528,581 B2 | ||
| Battery apparatus for controlling plural batteries and control method of plural batteries | ||
| Hideki Miyazaki, Hitachi (Japan); Akihiko Emori, Hitachi (Japan); Akihiko Kudo, Fukaya (Japan); and Tsuyoshi Kai, Ohira (Japan) | ||
| Assigned to Shin-Kobe Electric Machinery Co., Ltd., Tokyo (Japan); and Hitachi, Ltd., Tokyo (Japan) | ||
| Filed on Jun. 27, 2006, as Appl. No. 11/475,253. | ||
| Application 10/810674 is a division of application No. 10/079423, filed on Feb. 22, 2002, granted, now 6,762,588, filed on Jul. 13, 2004. | ||
| Application 11/475253 is a continuation of application No. 11/103639, filed on Apr. 12, 2005, granted, now 7,091,695, filed on Aug. 15, 2006. | ||
| Application 11/103639 is a continuation of application No. 10/810674, filed on Mar. 29, 2004, granted, now 6,891,352, filed on May 10, 2005. | ||
| Claims priority of application No. 2001-258859 (JP), filed on Aug. 29, 2001. | ||
| Prior Publication US 2007/0018613 A1, Jan. 25, 2007 | ||
| Int. Cl. H02J 7/06 (2006.01) | ||
| U.S. Cl. 320—163 [320/116; 324/434] | 21 Claims |
| 2. A battery apparatus used for a vehicle, the battery apparatus comprising:
plural battery modules each having plural battery cells, said plural battery modules being connected in series; and
plural first control devices, being provided corresponding to the plural battery modules, to receive a command signal from
a second control device and detect a status of the plural battery cells which are included in a corresponding battery module,
wherein
the plural first control devices include input and output signal circuits, said input and output signal circuits having different
reference potentials;
the plural first control devices are connected in series by connecting output signal terminals of said output signal circuits
and input signal terminals between the first control devices in an electrically non-isolated state; and
said serially connected first control devices receive the command signal from the second control device through an isolator.
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