Jae Y Chung

US Patent:

6378505, Apr 30, 2002

Filed:

Aug 15, 2000

Appl. No.:

09/639651

Inventors:

Jeffrey Allen Doering - Canton MI
Brent Edward Sealy - Dearborn MI
Jae Doo Chung - Westland MI
Marianne L. Vykydal - Onsted MI
Patrick Joseph Curran - Northville MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F02M 3302

US Classification:

123520, 123198 D

Abstract:

A method is presented for diagnosing a condition in the fuel vapor purge system. The engine, the fuel tank and the carbon canister are connected in a three-way connection. The engine can be selectively isolated by a purge control valve, and the fuel tank can be selectively isolated by a fuel tank control valve. The operation of both valves is coordinated by an electronic engine controller. By isolating the fuel tank, and comparing the actual rate of change of the internal tank pressure (from the tank pressure sensor) to the estimated rate of change (from engine operating conditions) it is possible to determine if a condition occurred, and whether it is in the tank or in the vapor purge lines.

US Patent:

6422214, Jul 23, 2002

Filed:

Aug 15, 2000

Appl. No.:

09/638691

Inventors:

Brent Edward Sealy - Dearborn MI
Jae Doo Chung - Westland MI
Jeffrey Allen Doering - Canton MI
Marianne L. Vykydal - Onsted MI
Patrick Joseph Curran - Northville MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

F02M 3704

US Classification:

123520, 123674

Abstract:

A method is presented for controlling fuel tank pressure in an internal combustion engine. The engine, the fuel tank and the carbon canister are connected in a three-way connection. The engine can be selectively isolated by a purge control valve, and the fuel tank can be selectively isolated by a fuel tank control valve. The operation of both valves is coordinated by an electronic engine controller. By isolating the fuel tank during the carbon canister purge, better estimate of the fuel fraction flowing into the engine can be achieved, thereby improving fuel economy.

US Patent:

6938606, Sep 6, 2005

Filed:

Sep 19, 2003

Appl. No.:

10/605285

Inventors:

Jae Doo Chung - Westland MI, US
Arthur Joseph Varady - Chelsea MI, US
Marsha Wendel - New Boston MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F02B075/12

US Classification:

123198DB

Abstract:

A method is provided for controlling an engine in a vehicle to facilitate determination of engine position sensor correction factors. The vehicle includes a motor, which is operatively connected to the engine, a sensor configured to detect engine position, and a controller, which is in communication with the engine, the sensor and the motor. It is determined when an engine shutdown is requested, for example, when the controller commands the vehicle to be powered by the motor. It is next determined whether engine position sensor correction factors are known. If they are, the engine control routine is stopped. If the correction factors are not known, fuel to the engine is discontinued, and the motor is employed to spin the engine at an approximately constant speed. The engine position sensor correction factors can then be determined while the engine is rotating in a defueled state.

US Patent:

D553051, Oct 16, 2007

Filed:

Nov 22, 2006

Appl. No.:

29/250616

Inventors:

Jae Chung - Rochester Hills MI, US
Andrew P. Dyson - West Bloomfield MI, US
Thomas G. Tremont - Birmingham MI, US
Brandon L. Faurote - Rochester MI, US

Assignee:

DaimlerChrysler Corporation - Auburn Hills MI

International Classification:

1208

US Classification:

D12 91

US Patent:

D564945, Mar 25, 2008

Filed:

Aug 7, 2007

Appl. No.:

29/283156

Inventors:

Jae Chung - Rochester Hills MI, US
Andrew P. Dyson - West Bloomfield MI, US
Thomas G. Tremont - Birmingham MI, US
Brandon L. Faurote - Rochester MI, US

Assignee:

Chrysler LLC - Auburn Hills MI

International Classification:

1208

US Classification:

D12 92

US Patent:

7562559, Jul 21, 2009

Filed:

Apr 3, 2006

Appl. No.:

11/396462

Inventors:

Jae Chung - Novi MI, US
Marsha Wendel - New Boston MI, US
David Waskiewicz - Hamburg MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

G01M 3/04

US Classification:

73 497

Abstract:

An electric motor or generator is used to spin the vehicle's internal combustion engine while the engine is not running, in order to draw a vacuum within the vapor control system. Vacuum bleed off is then monitored to determine if an unacceptable condition in the control system may exist. The evaporative fuel emissions test may be conducted either while the vehicle is at rest or while under way in an electric drive mode of operation.

US Patent:

D668589, Oct 9, 2012

Filed:

Aug 3, 2011

Appl. No.:

29/398719

Inventors:

Jae Chung - Irvine CA, US
Alicia Higa - Hawthorne CA, US

Assignee:

Honda Motor Co., Ltd. - Tokyo

International Classification:

1216

US Classification:

D12163

US Patent:

20060053868, Mar 16, 2006

Filed:

Sep 16, 2004

Appl. No.:

10/943532

Inventors:

Jae Chung - Novi MI, US
Marsha Wendel - New Boston MI, US
David Waskiewicz - Hamburg MI, US

International Classification:

G01M 3/04

US Classification:

073049700

Abstract:

An electric motor or generator is used to spin the vehicle's internal combustion engine while the engine is not running, in order to draw a vacuum within the vapor control system. Vacuum bleed off is then monitored to determine if an unacceptable condition in the control system may exist. The evaporative fuel emissions test may be conducted either while the vehicle is at rest or while under way in an electric drive mode of operation.

Author:

Jae Ho Chung

ISBN #:

0198297777

Author:

Jae Ho Chung

ISBN #:

0742553965

Author:

Jae Ho Chung

ISBN #:

0742553973

Author:

Jae Ho Chung

ISBN #:

0765601478

Author:

Jae Wan Chung

ISBN #:

0739112910

Author:

Jae Wan Chung

ISBN #:

0739112929