The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 1981
Filed:
Nov. 28, 1979
Applicant:
Inventor:
Pierre Belot, Pavillons sous bois, FR;
Assignee:
Saft-Societe des Accumulateurs Fixes et de Traction, Romainville, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 44 ; 320 48 ;
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.