Patent ID: 9559389
Date: 2017-01-31
CPC Classifications: B60L,G06F,H01M,Y02E,Y02T

Claim:
1. A battery pack, comprising: a first battery terminal and a second battery terminal; a plurality of battery units, each said battery unit comprising; a plurality of bus interfaces arranged in alternating fashion with said battery units to define a daisy chain bus, each said bus interface configured for signal communication, each said bus interface respectively connecting the communication sections of two adjacent said battery units; and a battery manager configured to communicate with said battery units via the daisy chain bus, wherein the battery pack is configured so that the battery manager sends a command message to the battery units using a through mode protocol, and each said battery unit sends at least one of a confirmation message and a service request to the battery manager using a shift mode protocol, wherein in the through mode protocol, data is transferred via the data buffer, while in the shift mode protocol, data is shifted along the set of registers.