Polaris Industries Inc.

Eric L Gausen

James H Buchwitz

Dallas J Blake

Lucas R Salfer

Derek D Zimney

Reed A Hanson

Ralph W Lauzze

Darren J Hedlund

G Jay McKoskey

Chad A Dale

Ralph W Lauzze, Iii

Jon P Brandt

Jacob D Hanson

Ron R Danielson

Andreas H Bilek

Ron Danielson

A method and system for controlling a wastegate comprises determining a boost pressure target, measuring a boost pressure, determining a boost pressure error from the measured boost pressure and the boost pressure target, determining a wastegate position change based on boost pressure error, and changing the wastegate position corresponding to the wastegate position change.

Method and system for controlling a turbocharged two stroke engine based on boost error

A method and system for operating a two-stroke engine includes a fuel system comprising a fuel pressure sensor, fuel temperature sensor and a fuel injector and a controller in communication with the fuel pressure sensor and fuel temperature sensor. The controller controls the fuel injector with a fuel pulsewidth determined by determining a beginning time of a window for measuring fuel pressure, determining an ending time of the window, measuring fuel pressure between the beginning time and the ending time, determining a fuel pulsewidth based on the fuel pressure and fuel temperature and injecting fuel into the two-stroke engine in response to a desired fuel mass.

Method and system for controlling a two stroke engine based on fuel pressure

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Warroad, MN, United States of America

Eric L Gausen