Brian S Czuhai

US Patent:

54677556, Nov 21, 1995

Filed:

Aug 25, 1994

Appl. No.:

8/295450

Inventors:

Julie A. Konrad - Saline MI
Mark Freeland - Farmington Hills MI
Brian S. Czuhai - Canton MI

Assignee:

Ford Motor Company - Dearborn MI

International Classification:

F02D 4114
F02M 3700

US Classification:

123674

Abstract:

An adaptive fuel control system and method directed for use in a motor vehicle powered by a fuel-injected engine and having a fuel tank and a fuel rail and which is operative to run on a plurality of fuels and fuel blends. The system includes a refueling mixer which acts as a fluid damper to slowly introduce new fuel into the fuel rail and correspondingly slow the rate at which new fuel composition is mixed with existing fuel. A stratification mixer is also utilized to re-mix components of blended fuels which may have separated at cold temperatures. An Exhaust Gas Oxygen sensor (EGO) monitors engine exhaust gases and generates a corresponding electrical signal when the air/fuel mixture of the fuel switches between rich and lean. Finally, an electronic control assembly communicates with the EGO and the fuel injectors to generate and store in memory an updatable extended adaptive fuel control table of air/fuel ratio multipliers for selected engine load/engine speed cells. The ECA is adapted to update each of the cells in an amount proportional to the distance the corresponding load point is away from the corresponding load point of all bordering cells.

US Patent:

62956124, Sep 25, 2001

Filed:

Apr 11, 2000

Appl. No.:

9/546732

Inventors:

Brian Scott Czuhai - Belleville MI
Charles L. Cole - Livonia MI
Hui Wang - West Bloomfield MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

G06F 11277

US Classification:

714 33

Abstract:

A method and system are provided for invoking and monitoring of tests executed by multiple, diverse control systems/algorithms on a main controller which allows a single monitor system to be used to monitor the test results without requiring the monitor system to be programmed or individually tailored to process each unique output from the different possible tests. The present invention achieves independence between the monitor system and each of the specific test applications on the main controller by normalizing the unique results of each of the tests to a common value, thereby allowing the monitor system to generate expected results that can be used with any of the possible tests.