公开(公告)号：US09309803B2

公开(公告)日：2016-04-12

申请号：US14097665

申请日：2013-12-05

Applicant: GM Global Technology Operations LLC

Inventor： Joshua D. Cowgill ,  Joel Cowgill

IPC: F02D23/00 ,  F02B33/44 ,  F02B33/00 ,  F02M25/07 ,  F02B37/00 ,  F02B37/18 ,  F02B37/22 ,  F02B37/12 ,  F02B39/16

CPC classification number: F02B37/002 ,  F02B37/18 ,  F02B37/22 ,  F02B2037/122 ,  F02B2039/164 ,  Y02T10/144

Abstract: A control system for a vehicle includes a target boost module and a turbocharger control module. The target boost module determines a target boost for first and second turbochargers based on an engine torque request. Based on a temperature of a compressor of the second turbocharger, the turbocharger control module: selectively opens a first bypass valve that regulates exhaust bypassing a first turbine of the first turbocharger; and selectively closes a cutoff valve that regulates exhaust flow through both a second turbine of the second turbocharger and a second bypass valve. The second bypass valve regulates exhaust bypassing the second turbine of the second turbocharger.

Abstract translation: 车辆的控制系统包括目标升压模块和涡轮增压器控制模块。 目标升压模块基于发动机转矩请求确定第一和第二涡轮增压器的目标升压。 基于第二涡轮增压器的压缩机的温度，涡轮增压器控制模块：选择性地打开第一旁通阀，其调节绕过第一涡轮增压器的第一涡轮机的排气; 并且选择性地关闭调节通过第二涡轮增压器的第二涡轮机和第二旁通阀的排气流量的截止阀。 第二旁路阀调节绕过第二涡轮增压器的第二涡轮机的排气。

公开(公告)号：US20150159544A1

公开(公告)日：2015-06-11

申请号：US14097587

申请日：2013-12-05

Applicant: GM Global Technology Operations LLC

Inventor： Joshua D. Cowgill ,  Joel Cowgill

IPC: F02B37/00 ,  F02B37/18 ,  F02B37/16 ,  F02B37/22

CPC classification number: F02B37/002 ,  F02B37/16 ,  F02B37/18 ,  F02B37/183 ,  F02B37/22 ,  F02B2037/122 ,  F02B2037/162 ,  Y02T10/144

Abstract: A system for controlling an engine having a first turbocharger, a second turbocharger and a cutoff valve that regulates exhaust flow through a turbine of the second turbocharger, the system comprising: a speed determination module that determines a current speed of the first turbocharger, determines a current speed of the second turbocharger, and determines a target speed of the second turbocharger based on the current speed of the first turbocharger; and a boost control module that compares the target speed of the second turbocharger with the current speed of the second turbocharger, and that selectively adjusts a position of a cutoff valve to adjust the current speed of the second turbocharger based on the comparison.

Abstract translation: 一种用于控制发动机的系统，所述发动机具有调节通过所述第二涡轮增压器的涡轮机的排气流的第一涡轮增压器，第二涡轮增压器和截止阀，所述系统包括：速度确定模块，其确定所述第一涡轮增压器的当前速度， 第二涡轮增压器的当前速度，并且基于第一涡轮增压器的当前速度确定第二涡轮增压器的目标速度; 以及升压控制模块，其将第二涡轮增压器的目标速度与第二涡轮增压器的当前速度进行比较，并且基于该比较选择性地调节截止阀的位置以调节第二涡轮增压器的当前速度。