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A torque distribution controller based on the fuzzy logic for a double-clutch parallel hybrid electric vehicle was designed to determine the distribution of torque between engine and motor. Fuzzy logic controller is designed bases on speed, driver commands and battery state of charge. The motor auxiliary drive, ensuring the state of charge normal and providing a part of power to meet the needs of...
This paper presents a fuzzy logic torque control strategy for a plug-in parallel hybrid electric city public bus which is one type of plug-in hybrid electric vehicles (PHEVs). The control strategy design objective of the PHEV is fuel economy. Based on the Qingdao city public bus driving cycle, parameters of the electric motor, engine and battery are designed. According to the operating modes of charge-depleting...
This paper firstly describes the control strategies for the hybrid electric public bus and the development of hybrid propulsion control system. Based on the designed efficiency-first and torque-balancing control strategy, the hybrid propulsion control system has been designed and all the working modes of the hybrid electric bus are tested. Finally, experiments are carried out and verify that the control...
This is the second part of the two-part paper to illustrate the control system design and multi-energy strategy, it is the key to fulfill the fuel economy target for ISG hybrid bus. Based on a hierarchical structure, the control system is developed with the HCU (hybrid control unit) as the central controller to coordinate the motor, engine and CAN communication protocol. The multi-energy control strategy...
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