An electric marine propulsion system (2) configured to propel a marine vessel (1) includes a power storage system (16) comprising a plurality of batteries (18a-d) and at least one electric motor (4) powered by the power storage system (16) and configured to rotate a propulsor (10) to propel the marine vessel (1). A control system (11) is configured to identify a charge level (81a-d) for each of the plurality of batteries (18a-d) and determine which of the plurality of batteries (18a-d) are active batteries based at least in part on the charge level (81a-d) on each of the plurality of batteries (18a-d). A minimum power limit is then identified for the active batteries and a system power limit is determined based on the minimum power limit and the number of active batteries. The at least one electric motor (4) is then controlled based on the system power limit such that the system power limit is not exceeded.
ELECTRIC MARINE PROPULSION SYSTEM AND CONTROL METHOD
ELEKTRISCHES SCHIFFSANTRIEBSSYSTEM UND STEUERUNGSVERFAHREN
SYSTÈME DE PROPULSION MARINE ÉLECTRIQUE ET PROCÉDÉ DE COMMANDE
2023-09-20
Patent
Electronic Resource
English