Gm Global Technology Operations LLC

University of Michigan

Univeristy of Michigan

Paul M Najt

Tang-Wei Kuo

Jun-Mo Kang

Hanho Yun

Russell P Durrett

James A Eng

Kushal Narayanaswamy

Nicole Wermuth

Chen-Fang Chang

Barry L Brown

Orgun A Guralp

Rodney Brewer Rask

Cherian A Idicheria

David J Cleary

Kevin L Perry

Wei Ping Li

Peter P Andruskiewicz, Iv

Michael A Potter

Hamid Ghavami Kia

Anthony M Coppola

Man-Feng Chang

Zongxuan Sun

Sai S V Rajagopalan

Thompson M Sloane

Gerald Andrew Szekely, Jr

Venkatesh Gopalakrishnan

Joel G Toner

Dionissios N Assanis

Zoran S Filipi

Madhusudan Raghavan

Tobias A Schaedler

Chang H Kim

Ronald O Grover, Jr

Peter Andruskiewicz

James Donald Smith

Norman K Bucknor

Venkata Prasad Atluri

Scott E Parrish

Yongsheng He

Calvin K Koch

Norman Dale Brinkman

Junseok Chang

Gary P Hill

Mark A Hoffman

Chandra S Namuduri

Alan G Holmes

Mark William Verbrugge

Gongshin Qi

John Hunter Martin

Joel M Maguire

David Brian Brown

Ko-Jen Wu

Craig D Marriott

Steven Jeffrey Schmieg

Michael J Walker

Jyh-shin Chen

Ethan E Bayer

Yongjie Zhu

Edward J Keating

Sherif Hussein El Tahry

Richard Stephen Davis

Arun S Solomon

Mark A Theobald

Jong H Lee

Jason R Traub

Andreas M Lippert

Tito R Huffman

David J Brooks

Bin Zhu

David L Reuss

David Sun

Ian J Sutherland

David L Hilden

Christopher J Ro

Jim Liu

Arun Sushilkumar Paulraj Solomon

Ronald J Zink

Hardo Barths

Aristotelis Babajimopoulos

George Lavoie

Hanho Kang

Gunter Gräwert

Steve Anstey

Ian Whiteside

Steve Miller

Elliott Ortiz-Soto

Laxminarayan L Raja

William R Leppard

A system includes a battery system including a plurality of batteries and configured to be selectively coupled to and charged by a renewable energy source and selectively coupled to and charged by a power grid. The system further includes a DC bus shared by a plurality of loads and an energy management system connected between the battery system and the plurality of loads. The energy management system is configured to selectively connect individual ones of the plurality of batteries to at least one of the plurality of loads via the DC bus, selectively connect the battery system to the power grid and disconnect the battery system from the power grid, and selectively connect at least one of the plurality of loads directly to the power grid.

Architecture of renewable energy ecosystem

An insulated exhaust port liner of a cylinder head assembly for fluidly connecting to an internal combustion engine of a motor vehicle includes a sealing layer. The sealing layer has a first surface defining a passage for fluidly connecting to the internal combustion engine and receiving exhaust gas. The sealing layer further includes a second surface opposite to the first surface. The liner further includes a thermal barrier layer coated onto the second surface of the sealing layer. The thermal barrier layer is a porous non-woven material for supporting the sealing layer on the cylinder head and reducing a transfer of heat from the sealing layer to the cylinder head.

Insulated exhaust port liner for a cylinder head assembly of a motor vehicle

A multi-cylinder engine includes first and second subsets of cylinders. A dedicated-cylinder exhaust gas recirculation (EGR) system is associated with the second subset of cylinders. A plasma ignition system is disposed in the second subset of cylinders. A controller operates the plasma ignition system to control the plasma igniters to execute plasma discharges in the second subset of cylinders to generate residual exhaust gas, which is recirculated through the dedicated-cylinder EGR system to the intake air system for introduction into intake air.

Internal combustion engine employing a dedicated-cylinder EGR system

An internal combustion engine includes a fuel nozzle for injecting a fuel into a combustion chamber, and a plasma igniter for generating one or more pluralities of free radicals within the chamber, and initiating a flame to ignite the fuel. The igniter protrudes into the chamber. A method of igniting a fuel within a combustion chamber and controlling combustion phasing includes injecting a first portion of the fuel into the combustion chamber, energizing the plasma igniter to generate one or more pluralities of free radicals, each plurality having a known voltage, subsequently injecting a second portion of the fuel into the combustion chamber, and closely coupling activation of the plasma igniter with the second injection to ignite the fuel. Combustion phasing of the ignition event is controlled by controlling the number and voltage of the pluralities of free radicals generated by the plasma igniter.

Internal combustion engine and method of igniting a fuel

A composite thermal barrier coating (TBC) may be applied to a surface of components within an internal combustion engine. The composite TBC provides low thermal conductivity and low heat capacity insulation that is sealed against combustion gasses. The composite TBC includes three layers, bonded to one another, i.e., a first (bonding) layer, a second (insulating) layer, and a third (sealing) layer. The insulating layer is disposed between the bonding layer and the sealing layer. The bonding layer is bonded to the component and to the insulating layer. The insulating layer includes hollow microspheres that are sintered together to form insulation that provides a low effective thermal conductivity and low effective heat capacity. The sealing layer is a thin film that is configured to resist the high temperatures, present within the engine. The sealing layer is impermeable to gasses and presents a smooth surface.

Composite thermal barrier coating

An engine block assembly includes a head structure assembly, and a cylinder structure assembly. A plurality of fasteners interconnect the head structure assembly and the cylinder structure assembly. An outer shell encapsulates and supports both the head structure assembly and the cylinder structure assembly. The outer shell is a unitary polymer structure that is simultaneously over-molded onto the head structure assembly and the cylinder structure assembly. The head structure assembly and the cylinder structure assembly are constructed of components that are designed to carry the operational loads of the engine with minimal weight. The outer shell provides additional structural integrity, and provides fluid passages for lubrication and cooling, as well as support for other engine components.

Composite engine architecture, and method of manufacturing the same

A cylinder liner assembly includes an inner wear cylinder, a shell disposed radially outside of an outer surface of the inner wear cylinder, and a central layer disposed between the inner wear cylinder and the shell. The inner wear cylinder is a metal or ceramic, the central layer is a porous material, and the shell is a fiber reinforced polymer. The cylinder liner assembly may include a coolant passage disposed adjacent to the outer surface of the inner wear cylinder, between the inner wear cylinder and the shell. The coolant passage is operable to circulate a coolant therethrough for cooling the inner wear cylinder.

Cylinder liner assembly and method of making the same

An internal combustion engine includes a fuel injection system including a fuel injector disposed to inject fuel into the combustion chamber, and a plasma ignition system including a groundless barrier discharge plasma igniter that protrudes into the combustion chamber. A controller includes an executable instruction set to control the engine in a compression-ignition mode when the output torque request indicates a low load condition, including instructions to control a variable valve actuation system and control the plasma ignition system to execute plasma discharge events subsequent to controlling the fuel injection system to execute a fuel injection event, wherein the fuel injection event achieves a cylinder charge having a lean air/fuel ratio.

Method and apparatus for controlling operation of an internal combustion engine

Methods of manufacturing vehicle assemblies, such as engine assemblies, are provided. The method includes arranging at least a first component in a mold, arranging a second component or a second component precursor adjacent to the first component in the mold, introducing a sacrificial material into the mold, introducing at least one polymeric fluid into the mold, solidifying the polymeric fluid, and removing the sacrificial material from the mold to form a void space so that the first component, the polymeric composite material, and the void space define the vehicle assembly.

Methods of manufacturing vehicle assemblies

Engine assemblies and methods of heating and/or cooling the engine assemblies are provided. The engine assembly has a metal liner defining a cylindrical region for receiving a piston, a polymeric composite housing disposed around at least a portion of the exterior surface of the metal liner, and a metal cylinder head. The polymeric composite housing comprises a polymer and a plurality of reinforcing fibers and at least one of: a plurality of microchannels for receiving a heat transfer fluid for heating and/or cooling the engine assembly; and at least one wire for heating the engine assembly.

Polymeric composite engine assembly and methods of heating and cooling said assembly

An internal combustion engine includes a cylinder block that defines a cylinder and a cylinder head mounted to the cylinder block. A reciprocating piston is arranged inside the cylinder for compressing an air and fuel mixture at a geometric compression ratio of at least 10:1. A crankshaft is arranged in the cylinder block and rotated by the piston. An intake valve is operatively connected to the cylinder head and controls delivery of air to the cylinder for combustion therein. A mechanism provides a constant peak lift of the intake valve over an angle of rotation of the crankshaft that is at least 5 degrees, i.e., an extended dwell at peak lift. A multi-stage boosting system having first and second gas compressors is selectively controlled to pressurize air that is received from the ambient for delivery to the cylinder. A vehicle having such an engine is also disclosed.

Elevated compression ratio internal combustion engine with multi-stage boosting

Methods of joining components to form vehicle assemblies, such as engine assemblies, are provided. The methods include arranging a first component having a first channel defined therein in a mold, arranging a second component having a second channel defined therein in the mold, and aligning the first and second channel to define a pin-receiving channel. At least one polymeric composite pin is inserted into the pin-receiving channel thereby joining the first and second components, wherein an adhesive is disposed adjacent to at least a portion of the polymeric composite pin.

Methods of joining components in vehicle assemblies

An internal combustion engine includes a component configured to be subjected to combustion gasses, the component includes a substrate presenting a surface and a coating applied to the surface of the substrate. The coating includes an insulating layer applied to the surface having a plurality of microspheres and a sealing layer bonded to the insulating layer and seals against the insulating layer.

Internal combustion engine and method for coating internal combustion engine components

Vehicle assemblies, such as engine assemblies, including an integrated cylinder head and plurality of liners as well as a polymeric composite housing are provided. Methods of making such vehicle assemblies are also provided.

Engine assemblies and methods of manufacturing the same

Crankshaft assemblies for vehicle assemblies, such as engine assemblies, and methods of manufacturing crankshaft assemblies are provided. The crankshaft assembly includes a first crankpin disposed between a first pair of webs and at least a first main bearing journal connected to the first pair of webs, wherein at least one of the first crankpin, the first pair of webs or the first main bearing journal is a polymeric composite including a polymer and a plurality of reinforcing fibers.

Crankshaft assemblies and methods of manufacturing the same

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Bloomfield Hills, MI, United States of America

Paul M Najt