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:
Aug. 28, 2018
Filed:
Apr. 22, 2014
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Abstract
An accumulator battery system has stages, a power connection, a controller, and circuits. The stages are series-connected. Each has an electrochemical accumulator and a switch. A power connection connects a load to the stages. Each the circuit is associated with a stage. Each circuit generates a voltage variation at terminals of its associated stage, and applies, to a switch of the associated stage, a binary sequence at a frequency. The sequence differs from those of other stages, thus allowing distinguishing between stages based on the sequence. The controller, which is connected to the stages by the power connection, measures a voltage variation across terminals of the stage in response to application of the binary sequence to the stage, identifies a stage from which the variation originates by searching for its associate sequence, and determines, from the variation, an impedance of the identified stage for that frequency.