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Study of the Impact of E-Machine in Hybrid Dual Clutch Transmission Powertrain

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  • Irfan Khan

    (Center for Automotive Research and Sustainable Mobility, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy)

  • Sanjarbek Ruzimov

    (Center for Automotive Research and Sustainable Mobility, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy
    Department of Mechanical and Aerospace Engineering, Turin Polytechnic University in Tashkent, Tashkent 100095, Uzbekistan)

  • Nicola Amati

    (Center for Automotive Research and Sustainable Mobility, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy)

  • Andrea Tonoli

    (Center for Automotive Research and Sustainable Mobility, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy)

Abstract

Recent studies show that hybrid powertrains with dual clutch transmission are becoming more common. This is mainly influenced by the fact that they have higher efficiency, allow power-on shifting, and are more compact. However, the electric motor attached to the primary shaft of the transmission might represent some critical issues in statics and dynamics due to additional torque, inertia, and working irregularities. This paper aims to investigate the influence of the electric motor integration in the transmission on the reliability of the overall system. The focus is on the investigation of potential over stresses of the ICE bearings due to the bending of the gearbox primary shaft. To achieve the aim, the static and the rotor dynamic analysis of the inner and outer primary shafts is performed. The numerical analyses show the potential critical issues that can arise from the excessive manufacturing and assembling tolerances, the interaction of the e-machine torque irregularities and inertia with the bending dynamics of the primary shafts.

Suggested Citation

  • Irfan Khan & Sanjarbek Ruzimov & Nicola Amati & Andrea Tonoli, 2022. "Study of the Impact of E-Machine in Hybrid Dual Clutch Transmission Powertrain," Energies, MDPI, vol. 15(3), pages 1-19, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:945-:d:736251
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