Research on Load Compensation Strategy of Power Unit of Series Hybrid Electric Vehicle
When the power unit of the series hybrid vehicle is overloaded suddenly,the engine torque load rate would be too high,which would lead to abnormally operation.In order to solve this problem,a load compensation strategy based on fuzzy control is designed.By controlling the torque of generator,the engine torque load rate could be regulated,so that avoiding the engine working near the critical condition.The simulation and test results show that the strategy improves the working characteristics of the power unit effectively,makes it operates stable and smoothly until achieve the expected operating point,improves the robustness of the power unit.
power unitfuzzy controlload compensationenginerobustness
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