Method and device for measuring the charge of an electrochemical generator whilst in use

Abstract

Abstract Process and device for measuring the state of charge of an electrochemical generator such as a lead-acid battery, while operating. The device includes means for measuring the voltage of the generator means for storing the no-load voltage (V=E(to)) of the generator during its initial connection, then the last value of the computed electromotive force (V, VM), means for computing the value of the difference DELTA V between the measured voltage (Vb) of the generator and the last value of the computed electromotive force (V, VM), means for determining the sign of said difference DELTA V, means for measuring the elapsed time ( delta ) between two successive measurements of the voltage of the generator, means for computing the variation of electromotive force DELTA E=f( DELTA V)x delta of the generator means for computing the value of the electromotive force from the last computed value and of said variation DELTA E, and means for displaying the computed value of the electromotive force.

Inventors

• 👤 Jean-Paul Lefebvre
• 👤 Thierry Pedron

Bibliographic Details