US 12,187,399 B2
Marine propulsion device with forward/reverse shifting mechanism, and marine vessel
Ryosuke Hara, Shizuoka (JP); and Hiroki Sato, Shizuoka (JP)
Assigned to YAMAHA KATSUDOKI KABUSHIKI KAISHA, Shizuoka (JP)
Filed by YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata (JP)
Filed on Jan. 10, 2023, as Appl. No. 18/095,009.
Claims priority of application No. 2022-024652 (JP), filed on Feb. 21, 2022.
Prior Publication US 2023/0264798 A1, Aug. 24, 2023
Int. Cl. B63H 21/21 (2006.01); F02D 41/00 (2006.01)
CPC B63H 21/213 (2013.01) [F02D 41/0002 (2013.01); B63H 2021/216 (2013.01); F02D 2200/10 (2013.01); F02D 2200/501 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A propulsion device for a marine vessel, the propulsion device comprising:
an engine;
a forward/reverse shifting mechanism to change a direction of a propulsive force to be generated by the propulsion device according to a shift position thereof, the shift position being changeable between a forward position and a reverse position via a neutral position; and
a controller configured or programmed to:
obtain a command signal based on an operation of a joystick provided in the marine vessel;
based on the obtained command signal, control the shift position of the forward/reverse shifting mechanism and control the engine;
obtain a speed of the marine vessel;
determine a travelling direction of the marine vessel based on the obtained speed of the marine vessel; and
when changing the shift position of the forward/reverse shifting mechanism from the neutral position to a position corresponding to a direction opposite to the determined travelling direction of the marine vessel, perform a correction control to increase an output of the engine based on the obtained speed of the marine vessel.