Battery control with dual broadcast

Abstract

The present disclosure relates to electric and / or hybrid electric vehicle drive technology. In particular, a battery arrangement for connection to an electric machine and / or a power supply is disclosed, comprising: a plurality of battery cells, wherein a first sub-number of battery cells connected in series form a first string, a second sub-number of battery cells connected in series form a second string, and a third sub-number of battery cells connected in series form a third string, the first, second and third strings being connectable as one respective phase to the electric machine; a plurality of battery cell controllers forming a plurality of slave nodes, each battery cell controller being connected to at least one terminal of an assigned one of the plurality of battery cells, each battery cell controller comprising at least one power electronics arrangement to selectively connect or disconnect the at least one terminal; and a master node configured to broadcast a control information message to each of the plurality of slave nodes, the control information message allowing each slave node to control its power electronics arrangement.

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