A new type of four-wheel-drive CVT continuously variable power transmission (CVT) with dual-cavity half-toroidal units has been developed. It has maximum speed ratio range of 1:8.7 and transmits input torque of 250 Nm and rotational speed of 5500 rpm. The dual-cavity CVT transmits equal torque to front and rear axles at a maximum efficiency of 86 % without a center differential gear box. The percentage of drag torques of the traction surface and auxiliary bearings are analyzed theoretically. The equivalent function of a center differential gear box is achieved through the control of the front and real speed ratio.
Power transmission of half-toroidal traction drive continuously variable transmission (Four-wheel-drive CVT design and its performance)
Leistungsübertragung bei einem für einen Vierradantrieb konstruierten, halbtoroidalen stufenlos regelbaren Fahrzeuggetriebe
1995
5 Seiten, 10 Bilder, 1 Tabelle, 6 Quellen
Article (Journal)
English
Half-toroidal traction-drive continuously variable power transmission
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