A New Differential Configuration of Hybrid Electric Vehicle with Torque Regulationloop

  • Abdul baki Khalaf Ali University of Basrah- College of Engineering- Mechanical Engineering Department , Iraq
  • Basil Sh .Munahi University of Basrah - College of Engineering - Mechanical Engineering Depart- Basrah, Iraq
  • Karrar Abbas Johi University of Basrah, Engineering College, Department of Mechanical Engineering, Basrah -Iraq
  • Imad abdul-kadhem kheioon , University of Basrah ,College of Engineering , Department of Mechanical Engineering, Basrah -Iraq
Keywords: :Hybrid electric vehicle (HEV), torque loop, control strategy, continuously varying transmission (CVT)


he most significant weakness of hybrid electric vehicles (HEV)is the high construction
cost and the complicated control strategies due to multiple power sources[1],[2] .In this paper
a new developed configuration of hybrid vehicle is presented. The new configuration is
simple, cost-effective and easy to implement .The differential unit, which acts as mechanical
torque-overflow keeps engine torque within a predefined value . This is achieved by the aid of
torque loop attached to one terminal of the differential.The new configuration proved to act
continuously varying transmission (CVT)and also can perform efficient control strategies .
Minimum emissions can be assured by running the IC-engine within best engine performance
zone which is characterized by engine torque and engine speed.