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Simulation of a vehicle with an ICE, CVT and ISG powertrain: a pre-study for concept evaluation and dimensioning

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Author: Tillaart, E. van den · Haas, J. de · Frijlink, P. · Schaerlaeckens, W.
Institution: TNO Wegtransportmiddelen
Source:Automotive and Transportation Technology Congress and Exhibition, October 1-3, 2001, Barcelona, Spain
Identifier: 362591
Article number: SAE Paper 2001-01-3453
Keywords: Traffic · Anthropomorphic test devices · Computer analysis · Dummy models · Dynamic tests · Finite element models · Frontal collision · Heavy truck · Lower leg · Occupant injury · Occupant protections · Occupant response · Safety tests · Structural assessments · Test condition · Truck cabins · Automobile testing · Safety testing · Trucks · computer aided engineering · driveability · engines · powertrains · simulation · starters · starting


Up to now, reduction of fuel consumption of vehicles equipped with CVT transmission has not been exploited to its full potential due to the reduced driveability when driving the optimum efficiency engine operating points. An ISG system with torque boost capabilities can be used to restore this driveability. This paper discusses the goals, the CAE simulation tool, the methodology used in the preparative study for evaluation and dimensioning of a CVT- ISG concept, as well as the simulation results. The conclusions, generated from numerous simulations, provide vital information for the component selection, and for the development of the powertrain management system.