This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Handling Performance of a Vehicle Equipped with an Actively Controlled Differential
Technical Paper
2011-01-1557
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Vehicle handling is heavily influenced by the torque distribution to the driving wheels. This work presents a newly developed differential, designed to actively control the driving torque distribution to the wheels. The new device incorporates an electric machine, which can operate either as a motor or generator. A control unit monitors signals from various sources in the vehicle, such as steering angle, yaw acceleration and wheel rotational speed. Then, a control algorithm takes into account the steering angle rate and the vehicle speed in order to determine the suitable difference between output torque values. The handling improvement capabilities are evaluated by simulating in ADAMS/Car the driving behavior of a vehicle equipped with the new differential. The model that has been used to simulate vehicle handling is that of a Formula SAE type racing car. Results are obtained using the following three types of differentials: an open differential, a limited slip differential and the new actively controlled device. In all simulations, the same vehicle model has been used. Swept sine steering and split coefficient of friction (μ) acceleration driving conditions are tested for each differential type and the results are compared and evaluated. The aim of the paper is to shed some light on the advantages of the new torque distributing differential device. This is achieved by comparing simulation results such as trail, speed and yaw rate for the chosen driving conditions against those obtained by using the two common differential types.
Recommended Content
Technical Paper | Implementing the Milliken Moment Method using Controlled Dynamic Simulation |
Technical Paper | Vehicle Dynamics Benchmarking and Simulation |
Authors
Topic
Citation
Nerantzis, I., Athanasopoulos, E., Mihailidis, A., and Theodossiades, S., "Handling Performance of a Vehicle Equipped with an Actively Controlled Differential," SAE Technical Paper 2011-01-1557, 2011, https://doi.org/10.4271/2011-01-1557.Also In
References
- Vilani, E. “Simulation and control of active differential for improving vehicle handling and lateral performance,” ICE2007 Italy September 16 20 2007
- Piyabongkarn, D. Lew, J. Grogg, J. Kyle, R. “Stability-Enhanced Traction and Yaw Control using Electronic Limited Slip Differential,” SAE Technical Paper 2006-01-1016 2006 10.4271/2006-01-1016
- Piyabongkarn, D. Grogg, J. Yuan, Q. Lew, J. et al. “Dynamic Modeling of Torque-Biasing Devices for Vehicle Yaw Control,” SAE Technical Paper 2006-01-1963 2006 10.4271/2006-01-1963
- Huchtkoetter, H. Gassmann, T. “Vehicle Dynamics and Torque Management Devices,” SAE Technical Paper 2004-01-1058 2004 10.4271/2004-01-1058
- Gassmann, T. Barlage, J. “Electronic Torque Manager (ETM®): An Adaptive Driveline Torque Management System,” SAE Technical Paper 2004-01-0866 2004 10.4271/2004-01-0866
- Ushiroda, Y. Sawase, K. Takahashi, N. Suzuki, K. Manabe, K. “Development of super AYC,” Mitsubishi Motors Technical Review 15 75 78 2003
- Sawase, K. Takahisa, N. “Vehicular left/right drive force adjusting apparatus,” EP 0 575 151 A1 June 15 1993
- Yamamura, T. Ushiroda, Y. Sawase, K. “Device operable to distribute driving forces,” EP 1 997 665 A1 March 20 2008
- He, J. Crolla, D. Levesley, M. Manning, W. “Integrated Active Steering and Variable Torque Distribution Control for Improving Vehicle Handling and Stability,” SAE Technical Paper 2004-01-1071 2004 10.4271/2004-01-1071
- Wheals, J. C. Baker, H. Ramsey, K. Turner, W. “Torque vectoring AWD driveline: Design, simulation, capabilities and control,” SAE transactions 113 6 557 576 2004
- Mihailidis, A. Nerantzis, I. “Differential device with controllable torque distribution,” EP 10191000.8 November 12 2010
- Mihailidis, A. Samaras, Z. Nerantzis, I. Fontaras, G. Karaoglanidis, G. “The design of a formula student race car: a case study,” Proc. IMechE Vol. 223 Part D: J. Automobile Engineering 223 6 805 818 2009 10.1243/09544070JAUTO1080