Modeling and Development of the Real-time Control Strategy For Parallel Hybrid Electric Urban Buses
نویسندگان
چکیده
This paper proposes a feed-forward control model for SWB6105 parallel hybrid electric urban bus (PHEUB) by using Matlab/Simulink. In order to optimize the fuel economy, balance the battery state of charge (SOC), and satisfy the requirements of the vehicle performance and drivability as well, a logic threshold torque distribution control strategy (LTTDCS) incorporating with an instantaneous optimization algorithm was developed for the PHEUB. Bench tests results for the key components of the hybrid powertrain are selected as reliable references in the modeling. The control strategy is validated by the simulation results of the engine, the motor and the battery in terms of fuel economy and deviations of battery SOC. Key-Words: Parallel hybrid electric urban bus (PHEUB), Hybrid powertrain, Hybrid system modeling, Logic threshold torque distribution control strategy (LTTDCS), Instantaneous optimization algorithm, Real-time control
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