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Qian Chen - Rochester MI, US Charles H. Folkerts - Troy MI, US
Assignee:
GM Global Technology Operations, Inc. - Detroit MI
International Classification:
F02B 3/06
US Classification:
123 27R, 123294
Abstract:
A combustion mode switching control system for diesel engines is provided. The system includes: a switch determination module that initiates a switch request to switch between at least one of a premixed compression ignition (PCI) mode and a diesel combustion mode based on engine speed and at least one of fuel quantity and torque; a transition module that commands the at least one of the PCI mode and the diesel combustion mode based on the switch request; and a control module that controls at least one of target airflow, desired fuel quantity, and desired fuel injection timing based on the command.
GM Global Technology Operations, Inc. - Detroit MI
International Classification:
F02D 47/08 F02D 47/10
US Classification:
12356819
Abstract:
An engine control system that includes a throttle and an exhaust gas recirculation (EGR) valve to regulate a mass air flow (MAF) into an engine includes a first module that determines a MAF control command based on a MAF error. A second module determines an EGR valve position based on the MAF control command and a maximum EGR valve range and the throttle resolution. The throttle is fully open and the EGR valve based on the EGR position when the desired MAF is less than the maximum EGR valve range.
Diesel Combustion Mode Switching Control Based On Intake Carbon Dioxide (Co2) Concentration
Qian Chen - Rochester MI, US Tim Chang - West Bloomfield MI, US
International Classification:
F02B 17/00 F02B 5/00
US Classification:
123295, 123430
Abstract:
A method of switching a combustion mode of a diesel engine may include determining a carbon dioxide concentration in an intake manifold of a diesel engine, operating the diesel engine in a first combustion mode, and operating the diesel engine in a second combustion mode when the determined carbon dioxide concentration is greater than a predetermined carbon dioxide concentration value.
Diesel Transient Combustion Control Based On Intake Carbon Dioxide Concentration
Qian Chen - Rochester MI, US Tim Chang - West Bloomfield MI, US Hongxun Gao - Troy MI, US
International Classification:
G06F 19/00 F02D 41/14 F02M 51/00
US Classification:
701104, 123704
Abstract:
An engine control module includes a target intake carbon dioxide (CO2) module that determines a target intake CO2 concentration. An intake CO2 estimation module estimates an actual intake CO2 concentration. The engine control module adjusts fuel injection based on the target intake CO2 concentration and the actual intake CO2 concentration.
Method And System Utilizing Absolute Velocity To Improve The Performance Of Electromagnetic Devices
The method and system utilized the measurement of the “absolute” velocities or equivalent parameters of the electromagnetic devices and objects, which are defined as the velocities relative to the real origin of the electromagnetic wave, to accurately picture their impacts on the propagation and measurement of the electromagnetic wave and compensate for these impacts correspondingly. The comprehensive information of the “absolute” velocities, including both the measured values and the calculated right timings, is utilized to calibrate and control the electromagnetic device and calculate the results to improve performance and accuracy. The method and system include the absolute velocity measurement, the calibration and control of the device, and the computation of the right timings and results.
Anesthesiology AssociatesAnesthesiology Associates Of Wisconsin 2900 W Oklahoma Ave, Milwaukee, WI 53215 4143852380 (phone), 4143852382 (fax)
Anesthesiology AssociatesAnesthesiology Associates Of WI 5900 S Lk Dr, Cudahy, WI 53110 4143852380 (phone), 4143852382 (fax)
Anesthesiology AssociatesAnesthesiology Associates Of Wisconsin 8901 W Lincoln Ave, Milwaukee, WI 53227 4143852380 (phone), 4143852382 (fax)
Education:
Medical School Zhejiang Med Univ, Hangzhou, Zhejiang, China Graduated: 1986
Languages:
English
Description:
Dr. Chen graduated from the Zhejiang Med Univ, Hangzhou, Zhejiang, China in 1986. He works in Milwaukee, WI and 2 other locations and specializes in Anesthesiology. Dr. Chen is affiliated with Aurora Medical Center Washington County, Aurora St Lukes Medical Center, Aurora St Lukes South Shore and Aurora West Allis Medical Center.