US 12,134,452 B1
Systems and methods for improving acceleration performance of marine vessels
Jared D. Kalnins, Fond du Lac, WI (US); Mitchell J. Baer, Fond du Lac, WI (US); and Daniel A. Roske, Fond du Lac, WI (US)
Assigned to Brunswick Corporation, Mettawa, IL (US)
Filed by Brunswick Corporation, Mettawa, IL (US)
Filed on Feb. 15, 2022, as Appl. No. 17/672,054.
Int. Cl. B60L 15/20 (2006.01); B60L 58/12 (2019.01); B63H 21/17 (2006.01); B63H 21/21 (2006.01); H02P 23/20 (2016.01)
CPC B63H 21/17 (2013.01) [B60L 15/20 (2013.01); B60L 58/12 (2019.02); B63H 21/21 (2013.01); H02P 23/20 (2016.02); B60L 2200/32 (2013.01); B63H 2021/216 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electric marine propulsion system for a marine vessel, comprising:
a power storage system;
an electric motor powered by the power storage system and configured to rotate a propulsor to propel the marine vessel;
a control system configured to operate the electric motor in a speed control mode to generate a variable propulsion output so as not to exceed a rated operation value and an open loop parameter control mode such that the electric motor is operated to exceed the rated operation value to generate a maximum propulsion output, and wherein the control system is further configured to:
operate the electric motor in the speed control mode;
receive an operator demand for the electric motor to accelerate the marine vessel;
determine whether the operator demand exceeds a predetermined acceleration threshold; and
based at least in part on a determination that the operator demand exceeds the predetermined acceleration threshold, operate the electric motor in the open loop parameter control mode to generate the maximum propulsion output.