Multi-speed marine propulsion system with automatic shifting mec

Details Multi-speed marine propulsion system with automatic shifting mec Multi-speed marine propulsion system with automatic shifting mec

1995-06-23

1998-01-27

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

440 75, F16H 5930, B63H 2302

Patent

active

057117420

ABSTRACT:
A marine propulsion system, preferably having dual counterrotating propellers, has an automatic multi-speed shifting mechanism such as a transmission. An electronic controller monitors engine parameters such as engine revolution speed and load, and generates a control signal in response thereto, which is used to control shifting. Engine load is preferably monitored by sensing engine manifold air pressure. The electronic controller preferably has a shift parameter matrix stored within a programmable memory for comparing engine speed and engine load data to generate the control signal. The system can also have a manual override switch to override shifting of the shifting mechanism.

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Pp. 12 and 13 from B&M Marine Catalog.

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