Delphi Technologies, Inc.

Thomas Wayne Newman

Lawrence Dean Hazelton

Stephen Paul Sanders

Joyce D Carsey

Jeffrey Jean Stege

Frederic Jacquot

Jos Lang

Charles Wilson Braun

Curtis David Lamb

Michael Roland Brosseau

Keith Allen Confer

Daniel Frederick Smith

Thomas E Gyoergy

Mark J Hilderbrant

Dave C Thibo

Eric P Worden

Brian T Sanders

Chris D Robinson

Edward V Krejci

An actuator includes a motor operated by a controller through a pulse width modulation drive signal applied to a drive circuit that drives the motor. The actuator has an output shaft connected to a coupling structure for manipulating a device such as a variable geometry turbine (VGT) or an exhaust gas recirculation (EGR) valve. The device has a range of motion limited by first and second mechanical stops located at opposing low and high ends of the range. The controller learns the location of the mechanical stops during calibration. An external control unit transmits a desired position to the actuator. A protocol allows the external control unit to implicitly request a positioning mode by virtue of what value range the desired position falls into. The controller is configured to limit the drive signal to a non-harmful level when one of the positioning modes calls for pushing the device against one of the stops.

Method for controlling a holding force against, and limiting impact with travel limit positions

A process for preparing an over molded motor stator structure comprises constructing a bobbin assembly; constructing an intermediate stator assembly including assembling the bobbin assembly to a stator core having an internal and external diameter; disposing the intermediate stator assembly into a mold fixture comprising a cover half and an ejector half that includes an inner ejector core and a moveable plate; loading a bearing carrier into the mold fixture; closing the cover half causing the moveable plate to travel within the mold; injecting a unitizing material into the mold fixture to encapsulate the intermediate stator assembly and form an over molded motor stator structure. The moveable plate travels within the mold fixture so as prevent coating of the stator laminations external diameter. A tight tolerance relationship between the inner ejector core and the stator lamination inner diameter prevents the internal diameter from being encapsulated by the unitizing material.

Process for preparing an over molded motor stator structure

A smart actuator and method includes an actuating device adapted to deliver a selected driving torque to a geartrain that is coupled to an output shaft and adapted to selectively convey the driving torque from the actuating device to the output shaft to achieve a selected shaft position. At least one logic and control device operates the various aspects of the smart actuator. The geartrain includes at least one locking gear including locking features defining a plurality of gear positions. A position lock solenoid is adapted to engage the locking gear at a selected gear position once the geartrain has achieved the selected shaft position on the output shaft. The position lock solenoid then holds the gear at the selected gear position. The actuating device is shut off after the position lock solenoid has engaged the locking gear thereby achieving and holding a high torque without driving a lot of current.

Low power, high torque actuator retention

An integrated air fuel module ( ) for an internal combustion engine reduces or eliminates the escape of hydrocarbon evaporative emissions from the integrated air fuel module ( ) system, sub systems and components. The integrated air fuel module ( ) includes containment means ( ), such as a valve ( ) or carbon adsorber, that blocks the escape of evaporated hydrocarbon emissions from the air inlet ( ) of an engine during engine off conditions. The module ( ) provides a reduced number of potential external hydrocarbon leak and permeation paths to the surrounding atmosphere. Preferred geometries of the intake manifold ( ) in the module ( ) with the internal integration of other normally external systems, such as fuel injection ( ) and positive crankcase ventilation ( ) systems, accomplish the containment of evaporative emissions within or entering the air fuel module ( ) between engine operating periods when the engine is shut down.

Low evaporative emissions integrated air fuel module

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Flint, MI, United States of America

Thomas Wayne Newman