Renault S.a.s.

Michaël Palmieri

Marc Beranger

Michel Mensler

Lionel Cordesses

Sébastien Carcouet

Christophe Dang Van Nhan

Marco Ranieri

Christophe Dang-Van-Nhan

Alexis Derbey

An accumulator battery system includes series-connected accumulators with potentials across stages powering corresponding controllers that measure potential differences between terminals of accumulators. A first analog-to-digital converter encodes the potential measured between terminals of an accumulator. A first output delivers a first digital sequence corresponding to the encoded potential difference, logic levels of which are defined by at least two potentials across the first-stage accumulator terminals. A decoder decodes a potential measured by the first control-device from the first digital sequence. A second analog-to-digital converter selectively encodes a potential difference measured between terminals of a second-stage accumulator of the second stage and two potentials of the digital sequence received on the input. A second control-device processor extrapolates a potential difference across the first-stage accumulator terminal of the first stage based on two potentials of the received digital sequence.

System of accumulator batteries with more reliable voltage measurement

Growing community of inventors

Gieres, France

Michaël Palmieri