Method and control system for controlling a marine internal combustion engine
First Claim
1. A method for controlling a marine engine for propelling a marine vessel, the method comprising:
- receiving user input at a user input device to control acceleration of a marine vessel;
detecting a rapid acceleration command based on the user input;
determining an advanced spark timing based on at least one of engine speed and engine load, wherein the advanced spark timing adjusts a base spark time by a spark advance offset;
determining a fuel increase based on the spark advance offset;
determining an increased fuel injection amount by increasing a base fuel injection amount by the fuel increase; and
controlling a spark for one or more cylinders of the marine engine based on the advanced spark timing and controlling fuel delivery for the one or more cylinders of the marine engine based on the increased fuel injection amount.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for controlling a marine engine for propelling a marine vessel includes receiving user input as a user input device to control acceleration of a marine vessel, detecting a rapid acceleration command based on the user input, and determining an advanced spark timing based on at least one of engine speed and engine load, wherein the advanced spark timing adjusts a base spark time by a spark advance offset. A fuel increase is then determined based on the spark advance offset, and then an increased fuel injection amount is determined by increasing a base fuel injection amount by the fuel increase. Spark and fuel delivery are then controlled for one or more cylinders of the marine engine based on the advanced spark timing and the increased fuel injection amount.
19 Citations
20 Claims
-
1. A method for controlling a marine engine for propelling a marine vessel, the method comprising:
-
receiving user input at a user input device to control acceleration of a marine vessel; detecting a rapid acceleration command based on the user input; determining an advanced spark timing based on at least one of engine speed and engine load, wherein the advanced spark timing adjusts a base spark time by a spark advance offset; determining a fuel increase based on the spark advance offset; determining an increased fuel injection amount by increasing a base fuel injection amount by the fuel increase; and controlling a spark for one or more cylinders of the marine engine based on the advanced spark timing and controlling fuel delivery for the one or more cylinders of the marine engine based on the increased fuel injection amount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A marine propulsion system comprising:
-
a marine internal combustion engine having a plurality of pistons that move within cylinders to cause rotation of a crankshaft; a user input device for controlling acceleration of a marine vessel; a control module configured to; detect a rapid acceleration command provided at the user input device; determine a spark advance offset based on at least one of engine speed and engine load; determine an advanced spark timing based on at least one of engine speed and engine load, wherein the advanced spark timing adjusts a base spark time by a spark advance offset; determine a fuel increase based on the spark advance offset; determine an increased fuel injection amount by increasing a base fuel injection amount by the fuel increase; and control a spark for one or more cylinders of the marine engine based on the advanced spark timing and controlling fuel delivery for the one or more cylinders of the marine engine based on the increased fuel injection amount. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
-
Specification