Ford Global Technolgoies, LLC

Visteon Global Technolgoies, Inc.

Howard Edmund Scheer

Michael John Cullen

Brian D Rutkowski

Jhun-Sou Lin

Shao-Chiung Lu

Harry Li

A design evaluation system which evaluates a design of a component or assembly, such as component or assembly . Particularly, system includes a database having several equality and inequality relationships which are required to be satisfied by the design . System also includes several equality and inequality relationships which system attempts to have satisfied by the design , but which are not required to be satisfied. System further dynamically modifies the values of certain variables within the design in order to substantially ensure that the design is modified in a manner which is consistent with certain of the equality and inequality relationships which are contained within the database

Design evaluation system

An internal combustion engine having electronic throttle control includes an air assisted injector system for directing a controlled amount of air directly to the combustion chamber without passing through the throttle body. A method of diagnosing faults in the air assisted injector system is disclosed. The method comprises the steps of measuring the airflow entering an intake of the electronic throttle of the engine at idle speed with the air assisted injector system operating at a first rate of airflow, turning the air assisted injector system off, measuring the airflow entering the intake of the electronic throttle of the engine at idle speed with the air assisted injector system off, and generating an error signal as a function of the two measured values.

Fault diagnostic for an internal combustion engine having air assisted injectors

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West Bloomfield, MI, United States of America

Howard Edmund Scheer