Design and Analysis of a New Torque Vectoring System with a Ravigneaux Gearset for Vehicle Applications

Yu-Fan Chen, I-Ming Chen, Joshua Chang and Tyng Liu
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Yu-Fan Chen: Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan
I-Ming Chen: Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan
Joshua Chang: Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan
Tyng Liu: Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan

Energies, 2017, vol. 10, issue 12, 1-16

Abstract: The purpose of this research is to develop a new torque vectoring differential (TVD) for vehicle applications and investigate its effect on vehicle dynamic control. TVD is a technology that is able to distribute the engine torque to the left and right driving wheels at different ratios so that the yaw motion control can be realized. Attention has been paid to this technology in recent years because of its potential to improve the vehicle performance and driving safety. In this study, a new TVD design with a Ravigneaux gearset was developed. This new design is able to use only one pair of gearsets to generate two different speed ratios, and the weight and volume of the system can be reduced. To execute the research, current TVD designs were analyzed and their design principles were clarified. Next, a new TVD design with Ravigneaux gearset was proposed. Then the connecting manner and the gear ratio of the Ravigneaux gearset were discussed. The dynamic equation of the system was then derived and the operation of the system was simulated in a MATLAB program. Further simulation was performed with a vehicle dynamic model in SimulationX to demonstrate the effect of the new system. The results of this study show the potential of building a new TVD with a Ravigneaux gearset and can be helpful for further system development.

Keywords: vehicle component design; torque vectoring differential; vehicle dynamics (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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