公开(公告)号：US20200182139A1

公开(公告)日：2020-06-11

申请号：US16692336

申请日：2019-11-22

Applicant: Polaris Industries Inc.

Inventor： James H. BUCHWITZ ,  Ralph W. LAUZZE, III ,  Eric L. GAUSEN ,  Lucas R. SALFER ,  Jon P. BRANDT ,  Chad A. DALE ,  Darren J. HEDLUND ,  Reed A. HANSON ,  Derek D. ZIMNEY

IPC: F02B37/18 ,  F02B37/16 ,  F02B57/06 ,  F02B31/06

Abstract: An exhaust gas diverter valve coupled within a pipe comprises a housing having a passage therethrough, a valve member rotatably coupled within the housing the valve member rotates about a valve axis. A first valve seat mat be disposed partially circumferentially within said passage and extending radially inwardly.

公开(公告)号：US20210131366A1

公开(公告)日：2021-05-06

申请号：US17145295

申请日：2021-01-09

Applicant: Polaris Industries Inc.

Inventor： Dallas J. BLAKE ,  James H. BUCHWITZ ,  Lucas R. SALFER ,  Darren J. HEDLUND ,  Reed A. HANSON ,  Eric L. GAUSEN

IPC: F02D41/00 ,  F02B37/18

Abstract: 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.

公开(公告)号：US20200182164A1

公开(公告)日：2020-06-11

申请号：US16696198

申请日：2019-11-26

Applicant: Polaris Industries Inc.

Inventor： James H. BUCHWITZ ,  Ralph W. LAUZZE, III ,  Eric L. GAUSEN ,  Andreas H. BILEK ,  Dallas J. BLAKE ,  Derek D. ZIMNEY ,  Lucas R. SALFER ,  Ron DANIELSON

IPC: F02D19/02 ,  F02M59/20 ,  F02D31/00 ,  F02B75/02

Abstract: 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.