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Study of an Integrated Diesel Engine-CVT Control Algorithm for Improving Drivability and Exhaust Emission Performance
Technical Paper
2001-01-3452
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Diesel engines have attracted more attention in recent years as one means of reducing carbon dioxide (CO2) emissions from motor vehicles. One of the major issues for diesel engines is exhaust emissions performance. Diesel engines also face various difficulties in providing the driving force demanded by the driver because of their greater inertia than that of gasoline engines.
Meanwhile, continuously variable transmissions (CVTs) have been popularized as gearboxes that execute ratio changes continuously without generating shift shock. The aim of this research is to achieve higher levels of drivability and exhaust emissions performance by mating a CVT to a diesel engine and making maximum use of the continuous ratio change capability.
An integrated engine-CVT control algorithm that can freely set the driving force and also the engine operating conditions for generating that driving force has been developed through this study. The effect of setting the engine operating conditions on exhaust emissions was made clear, and the driving force obtainable with this integrated control approach was analyzed.
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Osamura, K., Itoyama, H., and Iwano, H., "Study of an Integrated Diesel Engine-CVT Control Algorithm for Improving Drivability and Exhaust Emission Performance," SAE Technical Paper 2001-01-3452, 2001, https://doi.org/10.4271/2001-01-3452.Also In
References
- Tomisawa N. “Trends in powertrain integrated control and development of optimum micro computers” SAE parer 900238