(2) Lockup mode: the same as in the forward drive case.
As shown in Figure 3, this TC has the maximum torque ratio (turbine torque over pump torque) of about 1.65 and the coupling point at the speed ratio (turbine speed over pump speed) of 0.88. Its efficiency before the coupling point is lower than 90% and that in the lockup mode is around 99%.
2.3. Continuously Variable Transmission (CVT). A CVT is a continuous speed reduction device with infinite number of
transmission ratios between two limits. Comparing the three