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Krishnendu Kar

from South Lyon, MI
Age ~58
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Also known as:
Krish Kar, Krishnendu Car, Kar Krish, Kar Krishnendu
Phone and address:
25276 Stanley Ln, South Lyon, MI 48178
(248) 446-1763
Related to:
Ardhendu KarShivani KarOly Kar, 29
Connected to:
Amar N Kar, 44Arsiyak Kar, 64Bharati Kar, 76Bun C Kar, 42Gisela G Kar, 76Kabita Kar, 56Laurie A Kar, 58Mesrop Kar, 70Prangya P Kar, 45Ranjan K Kar, 74

Krishnendu Kar Phones & Addresses

  • 25276 Stanley Ln, South Lyon, MI 48178 (248) 446-1763
  • Webster, NY
  • 21110 Woodland Glen Dr, Northville, MI 48167
  • Rochester, NY
  • Pontiac, MI
  • Ann Arbor, MI
  • Madison Heights, MI
  • Oakland, MI
  • Malden, MA

Work

Company: General motors Position: Complexity optimization manager

Education

School / High School: West Virginia University

Industries

Automotive

Resumes

Resumes

Krishnendu Kar Photo 1

Krishnendu Kar

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Location:
South Lyon, MI
Industry:
Automotive
Work:
General Motors
Complexity Optimization Manager
Education:
West Virginia University

Publications

Us Patents

Method Of Determining Rubbing Friction Torque In A Motor Vehicle Powertrain

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US Patent:
6874360, Apr 5, 2005
Filed:
Sep 23, 2003
Appl. No.:
10/668383
Inventors:
Krishnendu Kar - Webster NY, US
Sergio Eduardo Garcia - Webster NY, US
Assignee:
Delphi Technologies, Inc. - Troy MI
International Classification:
G01M015/00
US Classification:
731173
Abstract:
A method of determining the rubbing friction torque involves characterizing fuel cutoff engine deceleration, and calculating the rubbing friction torque for any combination of engine speed and powertrain temperature is calculated in accordance with a base point rubbing friction torque RFTdetermined at a base powertrain temperature Tand fuel cutoff characterization data. The calibration data characterizing fuel cutoff engine deceleration is obtained by alternately enabling and cutting off engine fuel delivery to cycle the engine speed between specified set points, and measuring and recording the engine deceleration during intervals of fuel cutoff. The rubbing friction torque RFTat a given test temperature Tis calculated according to where DECELand DECELare the fuel cutoff engine decelerations at the test and base points, respectively, and PFT, and PFTare the pumping friction torques at the test and base points, respectively.

Ultra Accurate Gas Injection System With Vehicle Transient Air Simulation

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US Patent:
6934643, Aug 23, 2005
Filed:
Dec 15, 2003
Appl. No.:
10/737035
Inventors:
Krishnendu Kar - Webster NY, US
Robert Semidey - Fairport NY, US
Assignee:
Delphi Technologies, Inc. - Troy MI
International Classification:
G01F017/00
US Classification:
702 50, 7386303, 7386301, 73 2334, 374 37, 137 3, 137111, 137606
Abstract:
An ultra accurate gas injection system with vehicle transient air simulation is provided. The device includes an input device, at least one mass flow device, an air flow device, a controller, such as a PC based controller, and an output device. The air flow device issues an air flow rate signal indicative of at least the actual air flow rate and receives an air flow control signal. The controller issues gas and air flow control signals, repeatedly reads the air flow rate signal and compares the actual air flow rate with the target air flow rate. The controller adjusts the air flow control signal such that the actual air flow rate is substantially equal to the target air flow rate. The mass flow device injects at least one gas into the air stream which is subsequently emitted into the external system to simulate exhaust gas from a vehicle.

Method And Apparatus To Control Fuel Metering In An Internal Combustion Engine

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US Patent:
7024301, Apr 4, 2006
Filed:
Jan 14, 2005
Appl. No.:
11/036212
Inventors:
Krishnendu Kar - Webster NY, US
Andrew P. Bagnasco - Plymouth MI, US
Sergio Eduardo Garcia - Webster NY, US
Edward George Himes - Pittsford NY, US
Assignee:
Delphi Technologies, Inc. - Troy MI
International Classification:
F02D 41/14
US Classification:
701104, 123478
Abstract:
A system and method for controlling fuel delivery through a fuel injection system to an internal combustion engine is described. An engine controller calculates a mass of fuel for delivery to one of the cylinders through one of the fuel injectors, based upon the operation of the internal combustion engine. Gas temperature in the intake runner of the cylinder is determined, and a compensation term is selected based upon the calculated mass of fuel and the determined gas temperature in the intake runner of the cylinder. The calculated mass of fuel is adjusted using the compensation term, and the controller controls open time of the fuel injector based upon the adjusted calculated mass of fuel.

Power-Based Engine Speed Control

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US Patent:
8306722, Nov 6, 2012
Filed:
Feb 5, 2010
Appl. No.:
12/701097
Inventors:
Christopher E. Whitney - Highland MI, US
Krishnendu Kar - South Lyon MI, US
Massimiliano Maira - Turin, IT
Luca Scavone - Moncalieri, IT
Michael Livshiz - Ann Arbor MI, US
International Classification:
G06F 7/00
B60T 7/12
G05D 1/00
G06F 17/00
US Classification:
701110, 123350
Abstract:
A control system includes an engine speed control module, a fuel control module, and an air control module. The engine speed control module controls an actual speed of an engine based a desired power to be generated by combustion in the engine, wherein the desired power is a product of a desired speed of the engine and a desired torque output of the engine. When operating in a fuel lead mode, the fuel control module controls fuel flow in the engine by adjusting a desired fuel mass for each activated cylinder of the engine based on the desired power. The air control module controls air flow in the engine based on an actual air/fuel ratio of the engine resulting from the desired fuel mass.

Control System And Method For Idle Speed Control Torque Reserve Reduction

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US Patent:
8364381, Jan 29, 2013
Filed:
Aug 21, 2009
Appl. No.:
12/545318
Inventors:
Krishnendu Kar - South Lyon MI, US
Daniel Lee Baibak - White Lake MI, US
International Classification:
B60T 7/12
US Classification:
701103, 701110
Abstract:
A control system for an engine includes a speed error determination module that periodically determines an engine speed error rate based on a difference between a measured speed and a desired speed of the engine, and a torque reserve module that monitors the engine speed error rate and that selectively adjusts a torque reserve of the engine based on the engine speed error rate. The torque reserve module maintains the torque reserve at a predetermined first torque reserve amount while the engine speed error rate is less than a predetermined first error rate and selectively increases the torque reserve above the first torque reserve amount when the engine speed error rate increases above a predetermined second error rate greater than the first error rate. The torque reserve module decreases the torque reserve when the engine speed error rate decreases below the first error rate. A related method is also provided.

Fuel Cutoff Transition Control Systems And Methods

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US Patent:
8386150, Feb 26, 2013
Filed:
Apr 28, 2010
Appl. No.:
12/769308
Inventors:
Christopher E. Whitney - Commerce MI, US
Jun Lu - Novi MI, US
Michael J. Pitsch - Ann Arbor MI, US
Ryan Goode - Howell MI, US
Krishnendu Kar - South Lyon MI, US
Assignee:
GM Global Technology Operations LLC
International Classification:
F02D 41/30
US Classification:
701103, 701110, 701112, 123436, 123481, 12340623
Abstract:
An engine control system includes a fuel cutoff (FCO) module, a fuel control module, and a spark control module. The FCO module, when a FCO event is disabled, determines a feed-forward (FF) number of cylinders to offset a delay period associated with supplying fuel to the cylinders of an engine and selectively maintains a FCO torque request at a predetermined torque. The fuel control module commands fuel be supplied to the FF number of cylinders of the engine when the FCO event is disabled. The spark control module maintains a spark timing of the FF number of cylinders at a fully retarded spark timing based on the FCO torque request.

Speed Control Systems And Methods For Internal Combustion Engines

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US Patent:
20110139117, Jun 16, 2011
Filed:
Mar 29, 2010
Appl. No.:
12/748851
Inventors:
Krishnendu Kar - South Lyon MI, US
Michael Livshiz - Ann Arbor MI, US
Christopher E. Whitney - Highland MI, US
Cheryl A. Williams - Howell MI, US
Etsuko Muraji Stewart - Laingsburg MI, US
Matthew M. Manning - Brighton MI, US
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS, INC. - Detroit MI
International Classification:
F02M 1/02
US Classification:
123395
Abstract:
An engine control system includes a mode selection module that is configured to select an operating mode from one of an open loop control mode, a torque control mode, and a speed control mode based on an engine speed and a driver input. An axle torque arbitration (ABA) module generates ABA predicted and immediate torque requests based on the driver input. A speed control (SC) module generates a first set of SC predicted and immediate torque requests based on engine speed. A propulsion torque arbitration (PTA) module generates PTA predicted and immediate torque requests based on one of the ABA predicted and immediate torque requests and the first set of SC predicted and immediate torque requests based on the operating mode. A torque output control module controls output torque of an engine based on the PTA predicted and immediate torque requests.

Torque Control System And Method For Acceleration Changes

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US Patent:
20120150399, Jun 14, 2012
Filed:
Mar 1, 2011
Appl. No.:
13/037493
Inventors:
Krishnendu Kar - South Lyon MI, US
Pahngroc Oh - Ann Arbor MI, US
Andrew W. Baur - Whitmore Lake MI, US
Assignee:
GM Global Technology Operations LLC - Detroit MI
International Classification:
B60W 10/06
B60W 30/18
B60W 10/10
G06F 19/00
US Classification:
701 54, 701 51
Abstract:
A control system includes a driver torque determination module, a lash zone torque determination module, a rate limit determination module, and an immediate torque determination module. The driver torque determination module determines a driver torque request when a driver depresses an accelerator pedal while a vehicle is coasting. The lash zone torque determination module determines a lash zone torque based on a transmission gear and an engine speed. The rate limit determination module determines an adjustment rate limit based on a previous immediate torque request, the lash zone torque, and the transmission gear. The immediate torque determination module determines a present immediate torque request based on the driver torque request and selectively determines the present immediate torque request based on the adjustment rate limit.
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Krishnendu Kar from South Lyon, MI, age ~58 Get Report