Method and system for monitoring battery stacks comprising a...

Details Method and system for monitoring battery stacks comprising a... Method and system for monitoring battery stacks comprising a...

2006-12-29

2009-12-29

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

Regulated discharging

C320S118000, C320S162000

Reexamination Certificate

active

07638979

ABSTRACT:
A monitoring system (14, 24, 34, 50) monitors voltage of a stack of batteries (10, 20, 30.) Each battery has a plurality of cells (13). A monitoring unit (14, 24, 34) is associated with each battery and measures voltage across a selected cell. A first monitoring unit and a second monitoring unit measure the same cell, e.g. cell Cn,1of battery10.The first and second measurements are used to calculate a correction factor which can be used to correct a set of measurements made by one of the monitoring units (14, 24). The monitoring units (14, 24, 34) are arranged in a chain, with adjacent units in the chain being connected by a communication interface in which data is transmitted as signaling voltage levels between interface units. The interface units (16, 25) of a pair of monitoring units (14, 24) use the same signaling voltage levels.

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patent: WO 2005/017545 (2005-02-01), None

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