Affiliation:
1. Al Baha University, Mechanical Department
Abstract
<div class="section abstract"><div class="htmlview paragraph">The continuously variable transmission (CVT) for automotive applications can
better the transmission of power and fuel economy, a steel-belt design and
clamping force for power transmission are under development by many researchers
to increase the efficiency of a CVT and decrease the actuator power. The present
work assesses the transmission efficiency with two electromechanical actuators
system (TEMA) to modify the clamping force and DBCVT speed reduction ratio. The
model is designed based on DBCVT simulation with TEMA package to evaluate the
DBCVT component energy losses, transmission efficiency, and energy consumed by
TEMA. According to the results, the TEMA effectiveness of the suggested DBCVT
has a higher efficiency and improve energy losses than a single-belt CVT (SBCVT)
but the average energy consumed by an actuator for SBCVT was lower than that of
the TEMA with DBCVT throughout the new European drive cycle (NEDC). The average
peak of the transmission energy losses of DBCVT is improved by 9.7% and 29%
during UDC and EUDC, respectively, and the proposed DBCVT efficiency was
increased by approximately (4.6% to 8.9%) compared to SBCVT during NEDC.</div></div>