Method and device for monitoring the state of charge of a storag

Details Method and device for monitoring the state of charge of a storag Method and device for monitoring the state of charge of a storag

1979-11-28

1981-12-22

Miller, J. D.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 48, H02J 704

Patent

active

043073301

ABSTRACT:
Monitoring the state of charge consists of providing a magnitude g (e.g. a frequency F1) which is proportional to the storage battery charging or discharge current I (sensed at 2) and of algebraically integrating said magnitude (e.g. in an up/down counter K4, K5) into data which is the image of the state of charge of the storage battery; the proportionality constant a=g/I between said magnitude and said current being given a lower value during charging than during discharging, and the value of the constant a being varied during charging as an increasing function of the current I.

REFERENCES:
patent: 4194146 (1980-03-01), Patry et al.
patent: 4247812 (1981-01-01), Patry et al.

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