Sharanjit O Singh

US Patent:

6405106, Jun 11, 2002

Filed:

Aug 3, 2000

Appl. No.:

09/631595

Inventors:

Devang G. Sheth - West Bloomfield MI
Sharanjit Singh - Novi MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

G06F 1900

US Classification:

701 1, 701 24, 701 29, 701200215-, 705 5, 705417, 705418, 705400, 342457, 34235701, 34235709, 340990, 340989, 340995, 340994, 455557, 455550

Abstract:

A vehicle control system method and apparatus including a mobile application service provider communicating over a wireless communication network, a mobile station communicating with the mobile application service provider over the wireless communications network, and a vehicle controller communicating with the mobile station via an automotive communications network, and where the mobile application service provider accesses process variables on a computer network and transfers the process variables to the mobile station to be used by the vehicle controller for vehicle control.

US Patent:

6631611, Oct 14, 2003

Filed:

May 30, 2001

Appl. No.:

09/867977

Inventors:

Guojun Shi - Wixom MI
Sharanjit Singh - Farmington Hills MI
Minghui Kao - Rochester Hills MI
David W. Dempsey - Highland MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F01N 300

US Classification:

60285, 60274, 60276, 60284, 123691, 701103, 701109

Abstract:

A method of initializing the catalyst converter for monitoring the conversion efficiencies of a catalytic converter by measuring the oxygen storage capacity (OSC) of the converter. The measurement of the OSC indicates the degree of health of the converter. Under the same engine running conditions, the greater the OSC measurement, the healthier the converter. The catalyst needs to be set to either a rich state or a lean state prior to the measurement of its OSC time. This process is called catalyst state initialization. The catalyst has to be fully saturated from test to test in order to make consistent OSC measurements. This is through open loop fuel control by commanding a lean air to fuel ratio and then monitoring thepost-O2 sensor voltage until it falls below a calibrated value (e. g. 80 mV) indicating a lean state. The system continues to command a lean air to fuel ratio (e. g.

US Patent:

6694243, Feb 17, 2004

Filed:

Feb 27, 2001

Appl. No.:

09/794607

Inventors:

Guojun Shi - Wixom MI
Sharanjit Singh - Farmington Hills MI
Minghui Kao - Rochester Hills MI
David N. Benton - Birmingham MI
David W. Dempsey - Highland MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F01N 1100

US Classification:

701114, 731181, 60276

Abstract:

An on-board catalyst diagnostic for monitoring the conversion efficiencies of a catalytic converter by measuring the oxygen storage capacity (OSC) of the converter. The measurement of the OSC indicates the degree of health of the converter. Under the same engine running conditions, the greater the OSC measurement, the healthier the converter. A modeled OSC is compared to the real OSC to determine a normalized OSC. The normalized OSC is compared to a predetermined threshold value in order to determine the health of the converter. The modeled OSC takes into consideration variables which will affect the value of the OSC.

US Patent:

63053500, Oct 23, 2001

Filed:

Jun 20, 2000

Appl. No.:

9/597217

Inventors:

Michael Livshiz - Ann Arbor MI
Scott Joseph Chynoweth - Fenton MI
Sharanjit Singh - Novi MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02D 4116
F02D 4300

US Classification:

12333911

Abstract:

An idle control system for internal combustion engines providing load rejection and/or load compensation for a given engine. speed reference and barometric pressure wherein the present invention accommodates for varying engine speed references and for varying barometric pressures, such as at different altitudes. The control system incorporates a load compensator, and a control structure including a multitude of sub-control blocks. The load compensator generates the needed airflow to compensate for the torque of engine loads and works with a feed-forward controller to reject anticipated loads. The calibration procedure is fully automated.

US Patent:

56387881, Jun 17, 1997

Filed:

Jun 11, 1996

Appl. No.:

8/661680

Inventors:

David Jeffrey Sanvido - Novi MI
Mike Livshiz - Southfield MI
Sharanjit Singh - Farmington Hills MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02D 4116
F02D 4128

US Classification:

1233392

Abstract:

Control and functional isolation of an actuator applied to an internal combustion engine through an interface module which is interposed between the actuator and a controller having a control function, with state of the actuator estimated, converted to standard units of measure, and corrected in the interface module in response to an estimate of a parameter influenced by the actuator state, the parameter expressed in the standard units of measure, and the corrected state applied as feedback to the controller which, through application of the control function, issues to the module a desired state. The desired state is restored by removing a correction value from the desired state, is converted to actuator position units, and is applied to control actuator position.

US Patent:

59965533, Dec 7, 1999

Filed:

Feb 17, 1998

Appl. No.:

9/024140

Inventors:

David Jeffrey Sanvido - Ann Arbor MI
Joseph Mark Tolkacz - Novi MI
Mike Livshiz - Southfield MI
Sharanjit Singh - Farmington Hills MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02D 900

US Classification:

12333923

Abstract:

An internal combustion engine idle air control system including an idle air control actuator coupled to an idle air control valve for varying the position of the valve within an engine intake air passage for engine inlet air control under idle operating conditions adjusts the time rate of change in position of the idle air control valve in response to change in barometric pressure to account for change in air density passing across the valve and to account for change in torque load acting against the valve to precisely respond to torque load changes during idle operations without violating idle air control actuator stability margins.