Research Article
Global Optimal Energy Management Strategy Research for a Plug-In Series-Parallel Hybrid Electric Bus by Using Dynamic Programming
Table 3
Possible PHEB modes when
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| Required torque and speed areas of final drive | PHEB possible working modes | Remarks |
| 1 | EV mode, series mode | If the motor cannot supply sufficient torque, the ISG motor will provide the remaining torque | 2 | Engine-ISG-motor parallel mode | The required torque of final drive exceeds the maximum torque provided by engine and motor together, and ISG motor provides remaining torque | 3 | Engine-motor parallel mode | None | 4 | EV mode, series mode, engine-motor parallel mode | None | 5 | engine-ISG parallel mode, engine-motor parallel mode, engine-only mode | None | 6 | Engine-only mode, EV mode, engine-ISG parallel mode, engine-motor parallel mode, series mode | None |
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