Resumes
Resumes
Operation Mission Control
View pageWork:
Operation Mission Control
Todd Steinmetz Phones & Addresses
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31418 Day Lily Dr, Rockwood, MI 48173 (734) 236-4378
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21015 Busenbark Ln, Trenton, MI 48183
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Brownstown, MI
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South Range, MI
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Wayne, MI
Work
Position:
Operation mission control
Operation Mission Control
Publications
Us Patents
Diagnostic Method For A Torque Control Of An Electrically Variable Transmission
View pageUS Patent:
6976388, Dec 20, 2005
Filed:
May 14, 2004
Appl. No.:
10/846142
Inventors:
Anthony H. Heap - Ann Arbor MI, US
Tung-Ming Hsieh - Carmel IN, US
Gregory A. Hubbard - Brighton MI, US
Todd M. Steinmetz - Escanaba MI, US
Xuefeng T. Tao - Northville MI, US
Tung-Ming Hsieh - Carmel IN, US
Gregory A. Hubbard - Brighton MI, US
Todd M. Steinmetz - Escanaba MI, US
Xuefeng T. Tao - Northville MI, US
Assignee:
General Motors Corporation - Detroit MI
International Classification:
G01M013/02
US Classification:
731181, 73488, 701 29, 701 51
Abstract:
A condition of impaired speed and torque control of a parallel electrically variable transmission due to factors beyond nominal modeling and estimation errors is diagnosed under low speed operation. The transmission includes at least one electric machine and a motor torque controller for regulating the transmission input speed and output torque. The motor torque controller includes an open-loop control path based on predetermined torques and accelerations and a closed loop control path based on input speed error. The presence of a larger than expected closed-loop correction magnitude, combined with low output speed and one or more other conditions is used to diagnose a condition of potential torque error, in which case the transmission control is altered to prevent unwanted operation.
Method For Automatic Traction Control In A Hybrid Electric Vehicle
View pageUS Patent:
7222014, May 22, 2007
Filed:
May 14, 2004
Appl. No.:
10/846016
Inventors:
Xuefeng T. Tao - Northville MI, US
Todd M. Steinmetz - Indianapolis IN, US
Tung-Ming Hsieh - Carmel IN, US
William R. Cawthorne - Milford MI, US
Todd M. Steinmetz - Indianapolis IN, US
Tung-Ming Hsieh - Carmel IN, US
William R. Cawthorne - Milford MI, US
Assignee:
General Motors Corporation - Detroit MI
International Classification:
G06F 7/00
US Classification:
701 87, 701 84, 701 82, 180197
Abstract:
A method for providing traction control in vehicle powertrain systems is particularly adapted for traction control in a powertrain system of a hybrid electric vehicle comprising an internal combustion engine, an electric machine and a transmission that is operatively coupled to the electric machine and the engine and adapted to provide a transmission torque output in response to a transmission torque input received as a torque output from either or both of the engine and the electric machine. The method is adapted to utilize conventional traction control and engine control hardware, software and communication standards to implement traction control. In one embodiment of the invention, a conventional traction controller is used to detect a wheel spin condition and provide a plurality of first output torque command messages in response thereto. The plurality of first output torque command messages are used to obtain a torque reduction which is applied to a reference output torque to obtain a corresponding plurality of traction control output torque commands for the powertrain system during the wheel spin condition. A rate limit may also be applied to control the rate of change between successive ones of the traction control output torque commands in order to reduce the possibility of extension of the wheel spin condition, or recurrence of another wheel spin condition.