Control system and method for a power delivery system having a continuously variable ratio transmission
Patent
·
OSTI ID:7151779
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. 4 figs.
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- PTO; EDB-94-123819
- Patent Number(s):
- A; US 4458561
- Application Number:
- PPN: US 6-380921
- OSTI ID:
- 7151779
- Country of Publication:
- United States
- Language:
- English
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