AN ELECTRONIC CONTROL CONCEPT FOR A CONTINUOUSLY VARIABLE TRANSMISSION
It is shown that an electronic control concept can exploit the calibration capability of a continuously variable transmission (CVT), in terms of start-up clutch function, line pressure control and ratio change strategy. Additional features, as the free-wheeling in coast, can be incorporated leading to comfort and efficiency improvements. The first step towards a full electronic control concept is the Electronic Ratio Control providing two selectable drive modes. It is demonstrated that with this control concept optimum economy as well as good driveability and comfort can be offered, avoiding any compromise penalties. With the Electronic Ratio Control the customer could receive a device, which provides already a major portion of the potential advantages recognizable due to the distinct engine responsiveness and engine speed restriction.
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Supplemental Notes:
- ISATA 83. Volume 1. International Symposium on Automotive Technology and Automation with particular reference to Electronics and Energy Saving in the Automotive Industries: Product and Process, Cologne, 19-23 September 1983.
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Corporate Authors:
Automotive Automotion Limited
42 Lloyd Park Avenue
Croydon CRO 5SB, Surrey, EnglandFord Werke AG
, Germany -
Authors:
- Abromeit, G
- Wilkinson, ACN
- Conference:
- Publication Date: 1983
Media Info
- Features: Figures;
- Pagination: p. 31-46
Subject/Index Terms
- TRT Terms: Comfort; Continuously variable transmissions; Driveability; Electronic control; Fuel conservation; Vehicle performance
- Subject Areas: Energy; Safety and Human Factors;
Filing Info
- Accession Number: 00393089
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: Proceeding, HS-037 234, HS-037 235
- Files: HSL, USDOT
- Created Date: Mar 29 1985 12:00AM