Control system and method for a power delivery system having a continuously variable ratio transmission
Abstract
A control system and method for a power delivery system, such as in an automotive vehicle, having an engine coupled to a continuously variable ratio transmission (CVT). Totally independent control of engine and transmission enable the engine to precisely follow a desired operating characteristic, such as the ideal operating line for minimum fuel consumption. CVT ratio is controlled as a function of commanded power or torque and measured load, while engine fuel requirements (e.g., throttle position) are strictly a function of measured engine speed. Fuel requirements are therefore precisely adjusted in accordance with the ideal characteristic for any load placed on the engine.
- Inventors:
-
- 1034 Hillside Ave., Madison, WI 53705
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 865076
- Patent Number(s):
- 4458561
- Assignee:
- Frank, Andrew A. (1034 Hillside Ave., Madison, WI 53705)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60W - CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16H - GEARING
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- control; method; power; delivery; continuously; variable; ratio; transmission; automotive; vehicle; engine; coupled; cvt; totally; independent; enable; precisely; follow; desired; operating; characteristic; ideal; line; minimum; fuel; consumption; controlled; function; commanded; torque; measured; load; requirements; throttle; position; strictly; speed; adjusted; accordance; placed; ratio transmission; automotive vehicle; variable ratio; continuously variable; commanded power; engine speed; fuel consumption; independent control; engine coupled; operating characteristic; power delivery; /477/
Citation Formats
Frank, Andrew A. Control system and method for a power delivery system having a continuously variable ratio transmission. United States: N. p., 1984.
Web.
Frank, Andrew A. Control system and method for a power delivery system having a continuously variable ratio transmission. United States.
Frank, Andrew A. Sun .
"Control system and method for a power delivery system having a continuously variable ratio transmission". United States. https://www.osti.gov/servlets/purl/865076.
@article{osti_865076,
title = {Control system and method for a power delivery system having a continuously variable ratio transmission},
author = {Frank, Andrew A},
abstractNote = {A control system and method for a power delivery system, such as in an automotive vehicle, having an engine coupled to a continuously variable ratio transmission (CVT). Totally independent control of engine and transmission enable the engine to precisely follow a desired operating characteristic, such as the ideal operating line for minimum fuel consumption. CVT ratio is controlled as a function of commanded power or torque and measured load, while engine fuel requirements (e.g., throttle position) are strictly a function of measured engine speed. Fuel requirements are therefore precisely adjusted in accordance with the ideal characteristic for any load placed on the engine.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1984},
month = {Sun Jan 01 00:00:00 EST 1984}
}
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