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AssigneeBrunswick Corporation
InventorsCharles A. Lubitz, David M. Van Buren, Matthew W. Snyder
Estimating the term…
A method for shifting a multi-speed transmission of a marine propulsion device from a first gear being engaged to a second gear being engaged by selectively filling a first clutch and a second clutch with a fluid. The method includes operating the marine propulsion device with the second gear disengaged and controlling the second clutch to perform a first prefill in which fluid is injected into the second clutch to partially fill the second clutch while the second gear remains disengaged. The method further includes receiving, after the first prefill, a request to shift from the first gear to the second gear and subsequently increasing a pressure in the second clutch to cause the second gear to engage and decreasing a pressure in the first clutch to cause the first gear to disengage to thereby shift the multi-speed transmission.
A method for shifting a multi-speed transmission of a marine propulsion device from a first gear being engaged to a second gear being engaged by selectively filling a first clutch and a second clutch with a fluid, the method comprising:
A multi-speed transmission for a marine propulsion device, the multi-speed transmission being configured to transmit torque from a powerhead to a propulsor, the multi-speed transmission comprising:
Dependencies are inferred from the claim text.