Research Article
Characteristic Investigation and Torque Distribution Diagram-Based Computational Method for Continuously Variable Power-Split Transmission
Table 2
Performance parameters of PST.
| | Performance parameters | Assumed values |
| | Cavity radius | 40 mm | | Radius of curvature of the roller | 32 mm | | Half-cone angle | π/3 | | Value range of the tilting angle | [−π/3, π/3] | | Speed ratio at the gear pair besides disc I | iI = −1 | | Speed ratio at the gear pair besides disc II | iII = 1 | | Speed ratio at the gear pair besides output shaft | iOUT = −1 | | Input speed | −2000 RPM | | Distance from the cavity to the rotational axis | 25 mm | | The number of cavities | m = 1 | | The number of rollers per cavity | n = 3 | | Absolute viscosity at the atmospheric pressure | 3.25 × 10−3 Pa s | | Viscosity-pressure index | 0.85 Pa−1 | | Pressure-viscosity coefficient | 1.71 × 10−8 Pa−1 | | Limiting shear stress at the atmospheric pressure | 0.02 × 109 Pa | | Limiting shear stress constant | 0.085 | | Pole pressure constant of the Roelands viscosity model | 1.96 × 108 Pa | | Pole viscosity of the Roelands viscosity model | 6.31 × 10−5 Pa s |
|
|
