US 11,912,388 B2
Marine vessel power supply system, and marine vessel
Yuta Miyagi, Shizuoka (JP)
Assigned to YAMAHA HATSUDOKI KABUSHIKI KAISHA, Shizuoka (JP)
Filed by YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata (JP)
Filed on Oct. 20, 2021, as Appl. No. 17/505,799.
Claims priority of application No. 2020-176751 (JP), filed on Oct. 21, 2020.
Prior Publication US 2022/0119084 A1, Apr. 21, 2022
Int. Cl. B63H 1/14 (2006.01); B60L 53/20 (2019.01); B60L 50/60 (2019.01); B60L 58/12 (2019.01); B63H 20/28 (2006.01); H05K 7/20 (2006.01)
CPC B63H 1/14 (2013.01) [B60L 50/60 (2019.02); B60L 53/20 (2019.02); B60L 58/12 (2019.02); B63H 20/28 (2013.01); H05K 7/20872 (2013.01); H05K 7/20927 (2013.01); B60L 2210/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A marine vessel power supply system for a marine vessel including an electric motor to rotate a propeller, the marine vessel power supply system comprising:
an inverter to supply electric power to the electric motor;
a battery to supply electric power to the inverter; and
an electronic control unit configured or programmed to control the inverter; wherein
the inverter includes:
an inverter circuit to convert DC electric power supplied from the battery to AC electric power;
a voltage detector to detect a voltage in a wiring between the battery and the inverter circuit; and
a microcomputer configured or programmed to communicate with the electronic control unit and to control the inverter circuit according to a command supplied from the electronic control unit; and
the electronic control unit is configured or programmed to calculate an SOC estimate indicative of an estimated state-of-charge value of the battery based on a value of the voltage detected by the voltage detector and acquired from the microcomputer.