Shift motion control device
A shift-in operation determination device determines a shift-in operation based on a signal in accordance with an operation of a remote control lever. An ignition timing operation device retards an ignition timing of an engine based on a determination result of the shift-in operation by the shift-in operation determination device. A shift-in command device engages a shift actuator and a dog clutch with either of a forward traveling bevel gear or a rearward traveling bevel gear in a state where the ignition timing of the engine is retarded. The shift-in operation determination device works to prevent a shock which occurs at a shift-in while maintaining a stable engine output in an outboard motor.
1. A shift motion control device comprising:
a lever position detection device arranged to detect a position of a remote control lever;
a shift-in operation determination device arranged to determine a shift-in operation based on an output signal of the lever position detection device;
an engine output control device arranged to execute an output reduction control to reduce an engine output based on a determination result of the shift-in operation determination device; and
a shift-in command device arranged to control an engagement between a shift actuator and a dog clutch through a gear during a start of the output reduction control.
2. The shift motion control device according to claim 1 , wherein the engine output control device is an ignition timing control device arranged to retard an ignition timing of the engine.
3. The shift motion control device according to claim 1 , wherein the engine output control device ends the output reduction control when the shift actuator has either completed the engagement, or when the remote control lever is returned to a predetermined position.
4. The shift motion control device according to claim 2 , wherein the engine output control device ends the output reduction control when the shift actuator has either completed the engagement, or when the remote control lever is returned to a predetermined position.
5. The shift motion control device according to claim 1 , wherein the shift-in command device engages the shift actuator and the dog clutch with the gear after a lapse of a predetermined time period which occurs after the engine output control device starts the output reduction control.
6. The shift motion control device according to claim 2 , wherein the shift-in command device engages the shift actuator and the dog clutch with the gear after a lapse of a predetermined time period which occurs after the engine output control device starts the output reduction control.
7. The shift motion control device according to claim 3 , wherein the shift-in command device engages the shift actuator and the dog clutch with the gear after a lapse of a predetermined time period which occurs after the engine output control device starts the output reduction control.
8. The shift motion control device according to claim 4 , wherein the shift-in command device engages the shift actuator and the dog clutch with the gear after a lapse of a predetermined time period which occurs after the engine output control device starts the output reduction control.
9. The shift motion control device according to claim 1 , further comprising:
a boat speed determination device arranged to determine a boat speed at a time when the remote control lever is operated; wherein
the engine output control device prohibits the output reduction control when the boat speed determined by the boat speed determination device exceeds a predetermined value.
10. The shift motion control device according to claim 9 , wherein the boat speed determination device estimates the boat speed based on an engine speed and an intake air pressure.
11. The shift motion control device according to claim 10 , further comprising:
a boat speed communication device arranged to send and receive information of estimated boat speed values between a plurality of outboard motors mounted in the same boat; wherein
the boat speed determination device determines the boat speed based on the highest one of the estimated boat speed values for each of the respective outboard motors.