公开(公告)号：US11639684B2

公开(公告)日：2023-05-02

申请号：US16692795

申请日：2019-11-22

Applicant: Polaris Industries Inc.

Inventor： James H. Buchwitz ,  Darren J. Hedlund ,  Derek Zimney ,  Lucas R. Salfer ,  Reed A. Hanson ,  Dallas J. Blake

IPC: F02B37/18 ,  F02B57/06 ,  F02D31/00 ,  F01N13/10

Abstract: A system and method of operating the same includes an engine speed sensor determining an engine speed, an exhaust gas bypass valve, an exhaust gas bypass valve actuator coupled to the exhaust gas bypass valve and a controller. The controller partially opens the exhaust gas bypass valve with a first predetermined effective area greater than fully closed when the engine speed is at idle. The controller determines an acceleration event, holding the exhaust gas bypass valve open at least a second predetermined effective area greater than fully closed in response to the acceleration event.

公开(公告)号：US20220397068A1

公开(公告)日：2022-12-15

申请号：US17891314

申请日：2022-08-19

Applicant: Polaris Industries Inc.

Inventor： James H. Buchwitz ,  Lucas R. Salfer ,  James A. Barczak ,  Darren J. Hedlund ,  Reed A. Hanson ,  Derek Zimney ,  Chad A. Dale ,  Daniel E. Erickson ,  Jon P. Brandt ,  Alexander M. Hetteen

IPC: F02D9/10 ,  B62J50/21 ,  F01N13/18 ,  F02B37/18 ,  F02D23/00 ,  F02D41/10 ,  F02D13/02

Abstract: A system and method of controlling a turbocharged engine system includes receiving a boost mode selection signal and controlling the turbocharged engine system in response to the boost mode selection signal.

公开(公告)号：US20210215093A1

公开(公告)日：2021-07-15

申请号：US17145298

申请日：2021-01-09

Applicant: Polaris Industries Inc.

Inventor： James H. Buchwitz ,  Dallas J. Blake ,  Lucas R. Salfer ,  Alexander M. Hetteen ,  Reed A. Hanson ,  Darren J. Hedlund ,  Daniel E. Erickson ,  Chad A. Dale ,  Derek D. Zimney

IPC: F02B37/18 ,  F02B75/02 ,  F02D41/40 ,  F02P5/14

Abstract: A method and system for controlling operation of a two-stroke engine having a turbocharger includes the two-stroke engine comprising an electronically controlled exhaust valve. A throttle position sensor generates a throttle position signal corresponding to a position of a throttle plate of a throttle. A boost box is coupled to the two-stroke engine. A boost box pressure sensor is coupled to the boost box and generates a boost box pressure signal corresponding to a pressure within the boost box. A controller is coupled to the boost box pressure signal controlling a position of the electronically controlled exhaust valve in response to the boost box pressure signal and the throttle position signal.