Kevin R Chen

US Patent:

6646862, Nov 11, 2003

Filed:

May 31, 2002

Appl. No.:

10/160760

Inventors:

Thomas B. Shu - Austin TX
Kevin Y. Chen - Round Rock TX

Assignee:

Dell Products L.P. - Round Rock TX

International Classification:

H05K 716

US Classification:

361679, 361727, 3647081, 248922

Abstract:

An information handling system including a dynamic circuit interface is disclosed. The information handling system may include a processor mounted on a circuit board and a connector provided on the circuit board and electrically coupled to the processor. The connector is configured to receive a first circuit card or a second circuit card. A first circuit is provided on the circuit board and is electrically coupled to the connector, and a second circuit is provided on the circuit board and is also electrically coupled to the connector. If the first circuit card is received by the connector, a first signal path is provided from the first circuit to the second circuit via the first circuit card. If the second circuit card is received by the connector, a second signal path is provided from the second circuit card to the second circuit.

US Patent:

7065662, Jun 20, 2006

Filed:

Mar 10, 2003

Appl. No.:

10/385096

Inventors:

Kevin Y. Chen - Round Rock TX, US
Nikolai V. Vyssotski - Elgin TX, US

Assignee:

Dell Products L.P. - Round Rock TX

International Classification:

G06F 1/26

US Classification:

713300, 713320, 713322, 713323, 713324, 713330, 713340, 307 98, 307100, 307125, 307127

Abstract:

A method of implementing a power-based current limiting circuit in an information handling system includes providing a power supply having an output voltage operating range that can vary between a first voltage output level and a second voltage output level. The power supply output voltage is coupled to a load module via a switch. A power output of the power supply supplied to the load module is detected as a function of the load module current and the output voltage. Lastly, the switch is controlled between a first state and a second state in response to the detected power output.

US Patent:

8047184, Nov 1, 2011

Filed:

Jul 31, 2009

Appl. No.:

12/533336

Inventors:

Daniel Joseph Styles - Canton MI, US
Kevin Chen - Canton MI, US
David Curtis Ives - Ann Arbor MI, US
Frank M Korpics - Belleville MI, US
Norman Hiam Opolsky - West Bloomfield MI, US
Timothy Webb - Ann Arbor MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F02B 47/08
F02B 47/00

US Classification:

12356812

Abstract:

A system and method for controlling an engine control an EGR cooler bypass valve to divert at least a portion of EGR flow around an EGR cooler when operating under cooler fouling/plugging conditions, such as during idle, off-idle, exhaust system warm up and DPF regeneration or other post injection operation with EGR gas temperature below a corresponding threshold or with EGR low-temperature coolant temperature below a corresponding threshold. The system and method reduce exhaust gases passing through the EGR cooler that contain a high concentration of unburned or partially unburned fuel when the temperature in the EGR system is lower than the fuel condensation temperature.

US Patent:

8464520, Jun 18, 2013

Filed:

Oct 15, 2009

Appl. No.:

12/579627

Inventors:

Kevin Chen - Canton MI, US
Christopher Oberski - Plymouth MI, US
Norman Hiam Opolsky - West Bloomfield MI, US
Peter Mitchell Lyon - Birmingham MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 3/00

US Classification:

60295, 60274, 60297, 60311

Abstract:

Termination of regeneration of a particulate filter may be based on a variable percent threshold of stored particulate, where the percent threshold of stored particulate depends on a current soot burn rate. In one example approach, a method for controlling regeneration of a diesel particulate filter comprises: terminating regeneration based on a particulate burning rate; wherein the particulate burning rate is based on operating conditions of the diesel particulate filter; the operating conditions including an amount of stored particulate in the diesel particulate filter and a temperature of the diesel particulate filter.

US Patent:

8607549, Dec 17, 2013

Filed:

Jan 21, 2010

Appl. No.:

12/691565

Inventors:

Jian Kong - Canton MI, US
Kevin Chen - Canton MI, US
Kirk Andrew Parrish - Grass Lake MI, US
Jeff Malcolm Travis - Dexter MI, US
Christopher Oberski - Plymouth MI, US
Michiel J. Van Nieuwstadt - Ann Arbor MI, US

Assignee:

Ford Global Technologies, LLC - Dearborn MI

International Classification:

F01N 3/00

US Classification:

60295, 60286, 60297, 60303, 60311

Abstract:

In one approach a method for operating an engine including a DPF is provided. The method includes adjusting a post fuel injection amount based on a rate of change of engine torque during DPF regeneration. As one example, the adjusting includes reducing the amount when the rate of change is positive, and increasing the amount when the rate of change is negative. Furthermore, the method may also include delivering exhaust gas to a turbocharger turbine, to an oxidation catalyst, and then a DPF, the adjusting of the post fuel injection further based on thermal inertia of the turbocharger.

US Patent:

20110167805, Jul 14, 2011

Filed:

Aug 17, 2010

Appl. No.:

12/858196

Inventors:

Kevin Chen - Canton MI, US

Assignee:

FORD GLOBAL TECHNOLOGIES, LLC - Dearborn MI

International Classification:

F01N 9/00
F01N 3/20

US Classification:

60286

Abstract:

Various systems and methods are described for controlling a diesel aftertreatment system coupled to an exhaust system of an engine which includes a selective catalytic reduction (SCR) catalyst and a diesel particulate filter (PF). In one example, a threshold amount of urea injected to the SCR catalyst is adjusted based on an amount of soot generated by the engine and the total amount of urea injected to the SCR catalyst is limited by the threshold. For example, when the amount of soot generated by the engine is below a first threshold amount, the threshold amount of urea injection is reduced. When the amount of soot generated by the engine is above a second threshold amount, which is greater than the first threshold amount, the threshold amount of urea injection is increased.

US Patent:

20120300526, Nov 29, 2012

Filed:

May 21, 2012

Appl. No.:

13/476492

Inventors:

Ting-Ju CHUANG - Houston TX, US
Kevin Alexander CHEN - Houston TX, US

International Classification:

H02M 1/00

US Classification:

363146

Abstract:

A power adapter apparatus comprises an AC power input adapted to receive AC power, an AC-to-DC converter, a switch, a timer, and a casing at least partially enclosing the AC-to-DC converter, the switch and the timer. The AC-to-DC converter is configured to convert the AC power to DC power. The switch is operable to connect the AC power input with the AC-to-DC converter, and to disconnect the AC power input from the AC-to-DC converter. The timer is operable to preset a desirable time at which the switch turns off to disconnect the AC power input from the AC-to-DC converter.

US Patent:

20130131912, May 23, 2013

Filed:

Nov 22, 2011

Appl. No.:

13/302142

Inventors:

Kevin Chen - Canton MI, US
Christopher Oberski - Plymouth MI, US
Peter M. Lyon - Birmingham MI, US

Assignee:

FORD GLOBAL TECHNOLOGIES, LLC - DEARBORN MI

International Classification:

G01M 15/05

US Classification:

701 295

Abstract:

A method generates a useful life indication of a lubricating fluid in an engine. Initially, a quantity of use of an engine and a time of use of the engine are measured. A useful life indication of a lubricating fluid in the engine is generated based upon a first relationship between the quantity of use of an engine and the time of use of the engine when an operating characteristic is at or below a predetermined amount, such as the average speed of a vehicle containing the engine. The useful life indication of the lubricating fluid in the engine is generated based upon a second relationship between the quantity of use of an engine and the time of use of the engine when the operating characteristic is above the predetermined amount.