Research Article
Dynamic Analysis and Design Optimization of Series Hydraulic Hybrid System through Power Bond Graph Approach
Table 3
Input parameters to power bond graph model.
| | Parameters | Quantity | Description |
| | (Nms) | 1.65 × 10−1 | Master pump mechanical efficiency friction coefficient | | (Nms) | 1.65 × 10−1 | Regeneration pump mechanical efficiency friction coefficient | | (Nms) | 1.65 × 10−1 | Traction motor mechanical efficiency friction coefficient | | (m3/rev) | 1.1 × 10−5 | Volumetric displacement of master pump | | (Pa-s/m3) | 1 × 103 | Master pump internal leakage resistance | | ( m3) | 0.015 | Nominal volume of accumulator | |
(Pa) | 9 × 106 | Precharge pressure of accumulator | | (Pa) | 40 × 106 | Maximum operating pressure | | (m3/rev) | 8.3 × 10−6 | Volumetric displacement of traction motor | | (m3/rev) | 1.5 × 10−5 | Volumetric displacement of hydraulic regeneration pump | | (N) | 9500 | Resistant force due to vehicle moment of inertia | | (N) | 8.45 | Vehicle rolling resistance force | | (m) | 0.175 | Radius of the wheel | | (m2) | 0.5 | Front area of the vehicle |
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