Back to results
US 10,293,908 B2Granted
Outboard motor, engine starter, and engine starting method
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsJun Noguchi, Shiro Fukuda, Yuki Yamaguchi
Life of this patent
Estimating the term…
Abstract
An outboard motor performs assist control of assisting rotation of a crankshaft and performs power running rotation speed range expansion control of expanding a power running rotation speed range of a rotary electric machine in a state in which the crankshaft is rotated at a rotation speed within a cranking rotation speed range due to rotation of a rope reel.
Claims20
An outboard motor comprising:
- an engine including a crankshaft and that starts when the crankshaft is rotated at a cranking rotation speed or higher;
- a rope reel around which a rope is wound and connected to the crankshaft;
- a rotary electric machine connected to the crankshaft;
- and
- a rotary electric machine controller configured or programmed to control the rotary electric machine;
- wherein
- the rotary electric machine controller is configured or programmed to, in a state in which the crankshaft is rotated at a rotation speed within a cranking rotation speed range including the cranking rotation speed due to rotation of the rope reel, perform assist control of assisting rotation of the crankshaft by the rotary electric machine and perform power running rotation speed range expansion control of expanding a power running rotation speed range of the rotary electric machine.
4 more elements
An engine starter comprising:
- a manual starter connected to a crankshaft of an engine that starts when the crankshaft is rotated at a cranking rotation speed or higher and that manually rotates the crankshaft;
- a rotary electric machine connected to the crankshaft;
- and
- a rotary electric machine controller configured or programmed to control the rotary electric machine;
- wherein
- the rotary electric machine controller is configured or programmed to, in a state in which the crankshaft is rotated at a rotation speed within a cranking rotation speed range including the cranking rotation speed by the manual starter, perform assist control of assisting rotation of the crankshaft by the rotary electric machine and perform power running rotation speed range expansion control of expanding a power running rotation speed range of the rotary electric machine.
3 more elements
An engine starting method for an engine that starts when a crankshaft is rotated at a cranking rotation speed or higher, the method comprising:
- rotating the crankshaft by a manual starter connected to the crankshaft;
- and
- performing assist control of assisting rotation of the crankshaft by a rotary electric machine connected to the crankshaft and performing power running rotation speed range expansion control of expanding a power running rotation speed range of the rotary electric machine in a state in which the crankshaft is rotated by the manual starter at a rotation speed within a cranking rotation speed range including the cranking rotation speed.
Dependencies are inferred from the claim text.