Search For

Qi C Ma, 63Wichita, KS

Qi Ma Phones & Addresses

Wichita, KS   

Bel Aire, KS   

Ann Arbor, MI   

Chicago, IL   

Social networks

Qi C Ma

Linkedin

Work

Company: On-highway transportation market Sep 2011 Position: Senior staff engineer

Education

School / High School: The Ohio State University- Columbus, OH Aug 2005 Specialities: Ph.D. in Control

Industries

Accounting

Mentions for Qi C Ma

Resumes

Resumes

Qi Ma Photo 1

Senior Analyst At United Technology

Position:
Senior Analyst at United Technology
Location:
Wichita, Kansas Area
Industry:
Accounting
Work:
United Technology
Senior Analyst
Education:
Wichita State University 2001
Qi Ma Photo 2

Qi Ma - Farmington, MI

Work:
On-Highway transportation market Sep 2011 to 2000
Senior Staff Engineer
Staff Engineer Sep 2010 to Sep 2011 General Motors Powertrain AE - Milford, MI Sep 2007 to Sep 2010
Senior Project Engineer
General Motors Research & Development - Warren, MI Sep 2005 to Aug 2007
Senior Researcher
General Motors Corporation - Milford, MI Apr 2003 to Jun 2003
Contract employee
The Ohio State University Apr 2000 to Dec 2002
Leader of Control Hardware and System Design
The Ohio State University - Columbus, OH 2000 to 2002 Hitachi Automotive Product, Farmington - Hill, Michigan, US Jun 2001 to Dec 2001
Intern
Sino Steel Corp Jul 1997 to Oct 1998
Technical Expert
User Manuals Jul 1996 to Jul 1997
Field Engineer
University of Science & Technology of Beijing Jul 1993 to Dec 1995
Manager of Auto Center
Education:
The Ohio State University - Columbus, OH Aug 2005
Ph.D. in Control
University of Science & Technology of Beijing Jun 2002
M.S. in Mechanical Engineering Department

Business Records

Name / TitleCompany / ClassificationPhones & Addresses
Qi Ma
Director
Guangdong Audio & Video (U.S.A.) International Holding Groups, Inc

Publications

Us Patents

Calibration Of Model-Based Fuel Control With Fuel Dynamics Compensation For Engine Start And Crank To Run Transition

US Patent:
7204236, Apr 17, 2007
Filed:
Jan 17, 2006
Appl. No.:
11/333082
Inventors:
Qi Ma - Farmington Hills MI,
Stephen Yurkovich - Columbus OH,
Kenneth P. Dudek - Rochester Hills MI,
Stephen K. Fulcher - Clovis NM,
Assignee:
GM Global Technology Operations, Inc. - Detroit MI
International Classification:
F02D 41/06
F02M 51/06
US Classification:
123491, 123435, 701113
Abstract:
A fuel control system for regulating fuel to cylinders of an internal combustion engine during an engine start and crank-to-run transition includes a first module that determines a raw injected fuel mass based on a utilized fuel fraction (UFF) model and a nominal fuel dynamics (NFD) and a second module that regulates fueling to a cylinder of the engine based on the raw injected fuel mass until a combustion event of the cylinder. Each of the UFF and NFD models is calibrated based on data from a plurality of test starts-that are based on a pre-defined test schedule.

Method And Apparatus For Determining Temperature In A Gas Feedstream

US Patent:
8152369, Apr 10, 2012
Filed:
Oct 22, 2010
Appl. No.:
12/909926
Inventors:
Qi Ma - Farmington Hills MI,
Julian R. Verdejo - Farmington MI,
Nicholas John Kalweit - Novi MI,
Assignee:
GM Global Technology Operations LLC - Detroit MI
International Classification:
G01K 7/14
G01K 7/16
G01K 13/02
G01K 1/16
G01N 23/12
US Classification:
374147, 374148, 374164, 374 5, 374135, 374208, 701108, 703 2
Abstract:
An internal combustion engine includes an exhaust gas feedstream flowing past a gas sensing device disposed therein. The gas sensor includes an integrated electrical heating element which provides a resistance indicative of its temperature. An unknown input observer is used to determine the exhaust gas feedstream temperature based on the heating element temperature.

Selective Cylinder Disablement Control Systems And Methods

US Patent:
2011029, Dec 1, 2011
Filed:
Jul 14, 2010
Appl. No.:
12/835951
Inventors:
Qi Ma - Farmington Hills MI,
Robert Douglas Shafto - New Hudson MI,
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS, INC. - Detroit MI
International Classification:
F02D 41/30
US Classification:
701103
Abstract:
An engine control system for an auto-stop/start vehicle includes a mode control module and an actuator control module. The mode control module selectively initiates an engine startup event when an engine startup command is generated. The actuator control module cranks an engine during the engine startup event, provides fuel to a first cylinder of the engine while the engine is being cranked, and selectively disables fuel to a second cylinder of the engine while the engine is being cranked. The second cylinder is after the first cylinder in a firing order.

Transmission Load Predicting System For A Stop-Start System And A Hybrid Electric Vehicle

US Patent:
2011029, Dec 1, 2011
Filed:
Jul 14, 2010
Appl. No.:
12/835842
Inventors:
QI MA - FARMINGTON HILLS MI,
ROBERT DOUGLAS SHAFTO - NEW HUDSON MI,
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS, INC. - DETROIT MI
International Classification:
G06F 19/00
US Classification:
701 58
Abstract:
An engine system of a vehicle includes an engine torque module. The engine torque module determines an engine output torque profile including predicted torque outputs based on an accelerator signal and an engine state variable. A load control module determines a dynamic transmission load profile based on the engine output torque profile and an engine speed profile. The dynamic transmission load profile includes transmission loads as a function of engine speed during an auto-start of an engine. A compensation module generates a torque compensation signal based on the dynamic transmission load profile. An actuator module compensates for a change in a transmission load based on the torque compensation signal and during a transition of the engine from a cranking state to an idle state.

Vehicle Rollback Control Systems And Methods

US Patent:
2011029, Dec 1, 2011
Filed:
Jul 14, 2010
Appl. No.:
12/835856
Inventors:
Qi Ma - Farmington Hills MI,
Robert Douglas Shafto - New Hudson MI,
Assignee:
GM CLOBAL TECHNOLOGY OPERATIONS, INC. - Detroit MI
International Classification:
F02P 5/04
F02N 11/08
US Classification:
12340676, 1231794
Abstract:
A control system for an auto-stop/start vehicle includes a transmission load module, a target engine speed module, and an actuator control module. The transmission load module determines a load imposed on an engine through a transmission. The target engine speed module selectively determines a target engine speed during an engine startup event based on the load. The actuator control module controls at least one engine actuator based on the target engine speed during the engine startup event.

Method And Apparatus For Regenerating An Aftertreatment Device For A Spark-Ignition Direct-Injection Engine

US Patent:
2009019, Aug 6, 2009
Filed:
Feb 1, 2008
Appl. No.:
12/024616
Inventors:
David J. Cleary - West Bloomfield MI,
Qi Ma - Farmington Hills MI,
Kevin L. Perry - Fraser MI,
Thompson M. Sloane - Oxford MI,
Paul M. Najt - Bloomfield Hills MI,
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS, INC. - Detroit MI
International Classification:
F01N 3/08
F01N 9/00
US Classification:
60295, 60297, 60285
Abstract:
The disclosure sets forth operating a spark-ignition, direct-fuel injection internal combustion engine equipped with an exhaust aftertreatment system including a lean-NOx adsorber device. The engine is operated substantially un-throttled and at a lean air/fuel ratio and a first fuel pulse is injected to meet an engine output torque during a compression stroke of each engine cycle prior to a spark-ignition event. When regeneration of the lean-NOx adsorber device is commanded, a second fuel pulse is injected during a second engine stroke of each engine cycle.

Engine Speed Control Systems And Methods

US Patent:
8635987, Jan 28, 2014
Filed:
Jul 14, 2010
Appl. No.:
12/835848
Inventors:
Qi Ma - Farmington Hills MI,
Robert Douglas Shafto - New Hudson MI,
International Classification:
F02P 5/04
F02D 41/06
US Classification:
12340623
Abstract:
An engine control system for an auto-stop/start vehicle, comprising: an actuator control module, a correction determination module, and a spark adjustment module. The actuator control module determines a target spark timing for a first time that is between a second time when engine cranking begins and a third time when a measured engine speed becomes greater than a predetermined engine speed after the second time. The correction determination module determines a spark timing correction for the first time based on a target engine speed and a measured engine speed. The spark adjustment module sets a spark timing for the first time based on the target spark timing and the spark timing correction.

Controlled Engine Shutdown System For A Stop-Start System And A Hybrid Electric Vehicle

US Patent:
8543318, Sep 24, 2013
Filed:
Jul 14, 2010
Appl. No.:
12/835835
Inventors:
Qi Ma - Farmington Hills MI,
Robert Douglas Shafto - New Hudson MI,
International Classification:
F02D 28/00
F02N 11/08
F02D 17/02
US Classification:
701112, 1231794, 123198 F
Abstract:
An engine system includes a stop-start module that generates a shut down signal to shut down an engine. A friction module that generates a friction signal based on the engine shut down signal. The friction signal indicates an estimate of a sum of friction forces between components of the engine. A position module estimates a position of the engine and generates a position signal. An energy module estimates kinetic energy of the engine based on the friction signal and the position signal. A cylinder deactivation module stops the engine based on the kinetic energy in at least one of (i) a predetermined position and (ii) a predetermined range.

All data offered is derived from public sources. We do not verify or evaluate each piece of data, and makes no warranties or guarantees about any of the information offered. We do not possess or have access to secure or private financial information. Background Check is not a credit reporting agency and does not offer consumer reports. None of the information offered by Background Check is to be considered for purposes of determining any entity or person's eligibility for credit, insurance, employment, housing, or for any other purposes covered under the FCRA.