Method of controlling temperature of a thermoelectric generator in an exhaust system
Abstract
A method of controlling the temperature of a thermoelectric generator (TEG) in an exhaust system of an engine is provided. The method includes determining the temperature of the heated side of the TEG, determining exhaust gas flow rate through the TEG, and determining the exhaust gas temperature through the TEG. A rate of change in temperature of the heated side of the TEG is predicted based on the determined temperature, the determined exhaust gas flow rate, and the determined exhaust gas temperature through the TEG. Using the predicted rate of change of temperature of the heated side, exhaust gas flow rate through the TEG is calculated that will result in a maximum temperature of the heated side of the TEG less than a predetermined critical temperature given the predicted rate of change in temperature of the heated side of the TEG. A corresponding apparatus is provided.
- Inventors:
- Issue Date:
- Research Org.:
- GM Global Technology Operations LLC (Detroit, MI)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1084049
- Patent Number(s):
- 8443594
- Application Number:
- 12/753,344
- Assignee:
- GM Global Technology Operations LLC (Detroit, MI)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- DOE Contract Number:
- FC26-04NT42278
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS
Citation Formats
Prior, Gregory P, Reynolds, Michael G, and Cowgill, Joshua D. Method of controlling temperature of a thermoelectric generator in an exhaust system. United States: N. p., 2013.
Web.
Prior, Gregory P, Reynolds, Michael G, & Cowgill, Joshua D. Method of controlling temperature of a thermoelectric generator in an exhaust system. United States.
Prior, Gregory P, Reynolds, Michael G, and Cowgill, Joshua D. Tue .
"Method of controlling temperature of a thermoelectric generator in an exhaust system". United States. https://www.osti.gov/servlets/purl/1084049.
@article{osti_1084049,
title = {Method of controlling temperature of a thermoelectric generator in an exhaust system},
author = {Prior, Gregory P and Reynolds, Michael G and Cowgill, Joshua D},
abstractNote = {A method of controlling the temperature of a thermoelectric generator (TEG) in an exhaust system of an engine is provided. The method includes determining the temperature of the heated side of the TEG, determining exhaust gas flow rate through the TEG, and determining the exhaust gas temperature through the TEG. A rate of change in temperature of the heated side of the TEG is predicted based on the determined temperature, the determined exhaust gas flow rate, and the determined exhaust gas temperature through the TEG. Using the predicted rate of change of temperature of the heated side, exhaust gas flow rate through the TEG is calculated that will result in a maximum temperature of the heated side of the TEG less than a predetermined critical temperature given the predicted rate of change in temperature of the heated side of the TEG. A corresponding apparatus is provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 21 00:00:00 EDT 2013},
month = {Tue May 21 00:00:00 EDT 2013}
}
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