Appraisal of Continuously Variable Transmission Efficiency for Lightweight Vehicle Applications Piaggio V. E. Spa

Format:

Conference/Event

Author/Creator:

Nuti, Marco, author.

Conference Name:

Small Engine Technology Conference & Exposition (1995-09-13 : Milwaukee, Wisconsin, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1995

Summary:

After some general considerations about the extended use of Continuously Variable Transmissions (CVT's) for lightweight vehicles, which clearly show the two-fold advantage, the first of a very simple, compact and well integrated with engine transmission, the second to make possible the calibration of the engine only in a limited operating range, the efficiency of this type of transmission is investigated.A theoretical analysis of CVTs is carried out, in order to identify all the characterizing physical parameters. The design of a specific test rig is then presented. Since the transmission ratio depends on forces equilibrium, the centerline force appears to be the most important characterizing parameter. The new system is particularly conceived for small power output, id est minimum friction losses.The experimental results carried out on different elastomeric belts clearly show the dramatic influence on transmission efficiency of the axial force modulation, particularly in low transmitted torque andOn the proposed test rig, with minor changes, it is possible to test actual transmission components as in real operating conditions

Notes:

Vendor supplied data

Publisher Number:

951772

Access Restriction:

Restricted for use by site license