Device for determining the charge condition for a secondary electric storage battery

Patent · Tue May 08 04:00:00 EDT 1979

OSTI ID:5799256

Jungfer, L; Kautschitsch, D; Weber, R

A device for determining the charge condition of a secondary electric storage battery includes a digital integrator comprising a pulse generator for producing pulses at a frequency proportional to the magnitude of the instantaneous battery current and an up-down counter for counting the pulses in a sense (i.e., up or down) dependent upon the battery current direction. A switching arrangement operates to couple selectively the pulse generator or an adjustment pulse generator to the counter, and a comparator controls the supply of pules to, and the sense of counting in, the counter when the adjustment pulse generator is coupled to it in accordance with the result of a comparison of the counter setting and of a function signal. A function generator, programable in accord with the relationship between temperature, no-load voltage, and charge condition of the battery concerned, is controllable in accord with the instantaneous temperature and no-load voltage of the battery so as to generate the function signal to represent the associated charge condition. 1 figure.

• Assignee: Akkumulatoren-fabrik Dr. Leopold Jungfer
• Patent Number(s): US 4153867
• OSTI ID: 5799256
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
AUTOMOBILES
CHARGE STATE
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ENERGY STORAGE SYSTEMS
FUNCTION GENERATORS
LEAD-ACID BATTERIES
PULSE GENERATORS
PULSE INTEGRATORS
VEHICLES