Jeong Pil Park

US Patent:

8278933, Oct 2, 2012

Filed:

Sep 24, 2009

Appl. No.:

12/565982

Inventors:

Brian A. Welchko - Torrance CA, US
Silva Hiti - Redondo Beach CA, US
Abbas Raftari - West Bloomfield MI, US
Jeong J. Park - Ann Arbor MI, US
Hanne Buur - Brighton MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

G01R 31/00

US Classification:

324503

Abstract:

Methods and systems are provided for monitoring an automotive electrical system including an inverter having at least one switch. First and second voltage commands corresponding to respective first and second components of a commanded voltage vector on a synchronous frame of reference coordinate system are received. A plurality of duty cycles for operating the at least one switch are calculated based on the first and second voltage commands. First and second actual voltages are calculated based on the plurality of duty cycles. The first and second actual voltages correspond to respective first and second components of an actual voltage vector on the synchronous frame of reference coordinate system. An indication of a fault is generated based on the difference between the first components of the commanded voltage vector and the actual voltage vector and the difference between the second components of the commanded voltage vector and the actual voltage vector.

US Patent:

8340858, Dec 25, 2012

Filed:

May 21, 2010

Appl. No.:

12/784792

Inventors:

Jihoon Jang - Torrance CA, US
Bon Ho Bae - Torrance CA, US
Wei D. Wang - Troy MI, US
Jeong J. Park - Ann Arbor MI, US
Harry J. Bauer - Troy MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

G06F 7/00

US Classification:

701 292, 701 297

Abstract:

Methods and systems for controlling motor torque in a hybrid vehicle are provided. A current sensor provides a feedback current when the sensor is operating properly. A processor controls the motor torque using the feedback current if the current sensor is operating properly. The processor controls the motor torque using a slip value for the hybrid vehicle if the current sensor is not operating properly.

US Patent:

8463474, Jun 11, 2013

Filed:

May 21, 2010

Appl. No.:

12/784758

Inventors:

Jihoon Jang - Torrance CA, US
Bon Ho Bae - Torrance CA, US
Wei D. Wang - Troy MI, US
Jeong J. Park - Ann Arbor MI, US
Harry J. Bauer - Troy MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B60L 11/00

US Classification:

701 22

Abstract:

Methods and systems are provided for motor torque control for hybrid vehicles having a motor and a communications bus. The motor torque is controlled using a first motor torque capacity if the communications bus is healthy. The motor torque is controlled using a second motor torque capacity if the communications bus is unhealthy. The first motor torque capacity has a first absolute value. The second motor torque capacity has a second absolute value that is less than the first absolute value.

US Patent:

8463483, Jun 11, 2013

Filed:

Feb 12, 2010

Appl. No.:

12/704659

Inventors:

Brian A. Welchko - Torrance CA, US
Abbas Raftari - West Bloomfield MI, US
Silva Hiti - Redondo Beach CA, US
Jeong J. Park - Ann Arbor MI, US
Hanne Buur - Brighton MI, US
Wei D. Wang - Troy MI, US
William R. Cawthorne - Milford MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

G06F 7/00
G06F 19/00
G01M 17/00

US Classification:

701 291, 701 329, 340635, 705 34

Abstract:

Methods and systems are provided for monitoring an electrical system of a vehicle. Data pertaining to the electrical system is obtained. Calculation modules are performed using the data to generate intermediate determinations. An aggregate calculation module is performed using each of the intermediate determinations to generate an aggregate determination pertaining to the electrical system. Redundant intermediate calculations are performed using the data to generate redundant intermediate determinations. Each of the redundant intermediate determinations is used for comparison with a respective intermediate determination.

US Patent:

20110202211, Aug 18, 2011

Filed:

Feb 12, 2010

Appl. No.:

12/704614

Inventors:

BRIAN A. WELCHKO - TORRANCE CA, US
SILVA HITI - REDONDO BEACH CA, US
ABBAS RAFTARI - WEST BLOOMFIELD MI, US
JEONG J. PARK - ANN ARBOR MI, US
HANNE BUUR - BRIGHTON MI, US
WEI D. WANG - TROY MI, US
BRIAN R. MEDEMA - WATERFORD MI, US
WILLIAM R. CAWTHORNE - MILFORD MI, US
JACKIE L. CUI - TORRANCE CA, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS, INC. - DETROIT MI

International Classification:

G06F 7/00

US Classification:

701 22

Abstract:

Methods and systems are provided for controlling an electrical system of a vehicle. Sensors are used to obtain first data for a first path of calculations and second data for a second path of calculations. The first path comprises a first plurality of calculations of generating a value of a parameter pertaining to the electrical system, and the second path comprises a second plurality of calculations of monitoring the electrical system with respect to the first path. A processor is coupled to the plurality of sensors, and is configured to determine whether a data frozen flag is active, perform the first plurality of calculations of the first path using the first data if the first data flag is inactive, and perform the second plurality of calculations of the second path if the first data flag is active.

Address:

13908 Grn Trl Ct, Centreville, VA 20121

VIN:

5FNRL38729B003952

Make:

HONDA

Model:

ODYSSEY

Year:

2009

Address:

15161 Stratton Major Ct, Centreville, VA 20120

VIN:

WBXPC93427WF29813

Make:

BMW

Model:

X3

Year:

2007

Address:

4165 Rush St, Fairfax, VA 22033

VIN:

JTDKB20UX77649792

Make:

TOYO

Model:

PRIU

Year:

2007