公开(公告)号：US20180252172A1

公开(公告)日：2018-09-06

申请号：US15446030

申请日：2017-03-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dalton A. Blenc ,  Aaron Bowles

IPC: F02D41/00 ,  F02B37/11 ,  F02N11/04 ,  F02D41/06 ,  F01L1/04 ,  F01N13/10 ,  F02M35/104 ,  F02M35/10

CPC classification number: F02D41/0007 ,  F01L1/04 ,  F01N13/10 ,  F02B37/11 ,  F02D41/062 ,  F02D2041/001 ,  F02M35/10157 ,  F02M35/104 ,  F02N11/04 ,  F02N11/0814 ,  Y02T10/144

Abstract: A vehicle propulsion system includes an internal combustion engine with a cylinder, an intake valve, an exhaust valve, and a cylinder head defining a combustion chamber; an intake manifold in communication with the combustion chamber through the intake valve; an exhaust manifold in communication with the combustion chamber through the exhaust valve; a turbocharger with a compressor in communication with the intake manifold, a turbine in communication with the exhaust manifold, and an electric motor for selectively driving the turbine; and a controller in communication with the electric motor and configured to selectively operate electric motor to drive the turbine to reduce a pressure in the combustion chamber during an engine start process.

公开(公告)号：US10215114B2

公开(公告)日：2019-02-26

申请号：US15446030

申请日：2017-03-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dalton A Blenc ,  Aaron Bowles

IPC: F02B33/44 ,  F02D41/00 ,  F01L1/04 ,  F01N13/10 ,  F02B37/11 ,  F02D41/06 ,  F02M35/10 ,  F02M35/104 ,  F02N11/04 ,  F02N11/08

Abstract: A vehicle propulsion system includes an internal combustion engine with a cylinder, an intake valve, an exhaust valve, and a cylinder head defining a combustion chamber; an intake manifold in communication with the combustion chamber through the intake valve; an exhaust manifold in communication with the combustion chamber through the exhaust valve; a turbocharger with a compressor in communication with the intake manifold, a turbine in communication with the exhaust manifold, and an electric motor for selectively driving the turbine; and a controller in communication with the electric motor and configured to selectively operate electric motor to drive the turbine to reduce a pressure in the combustion chamber during an engine start process.