Document Type : Original Research Paper


1 Research and Science Branch of Islamic Azad University, Borujerd, Iran

2 Shahid Rajaee Teacher Training University, Tehran, Iran

3 Shahid Madani University of Azarbayjan, Iran


In front wheels driven vehicles, fuel economy can be obtained by summing torques applied to rear wheels. On the other hand, unequal torques applied to rear wheels provides enhanced safety. In this paper, a model with seven degrees of freedom is considered for the vehicle body. Thereafter, power-train subsystems are modeled. Considering an electrical machine on each rear wheel, a fuzzy controller is designed for each driving, braking, and stability conditions. Another fuzzy controller recognizes the vehicle requirements between the driving/regeneration and stability modes. The simulations performed in MATLAB/Simulink environment show that the proposed structure can effectively enhance vehicle performance in different modes.


[1] A.Sciarretta, M.Back, L.Guzzella, “Optimal Control of Parallel Hybrid Electric Vehicle,” IEEE Transaction on control system Technology. Vol. 12. No. 3. May 2004

[2] S.Delpart, J.Lauber, T.Marie, J.Rimaux, “Control of a Parallel Hybrid Powertrain Optimal Control,” IEEE Transaction on Vehicular Technology. Vol. 53. No. 3. May 2004

[3] R.I.Davis, R.D.Lorenz, “Engine Torque Ripple Cancellation with an Integrated Starter Alternator in a Hybrid Electric Vehicle: Implementation and Control,” IEEE conference, 2002, p. 2016- 2021.

[4] J.V. Mierlo, P.V.D.Bossche, G.Maggetto, “Models of energy sources for EV and HEV:fuel cells, batteries ultracapacitors, flywheels and engine-generators,” Elsevier, Jornal of power sources, 128, 2004,p. 76-89.

[5] F.Tahami, R.Kazemi, S.Farhangi, “ A Novel Driver Assist Stability System for All Wheels drive Electric Vehicles”, IEEE Transaction on Vehicular Technology, Vol. 52, No.3, May 2003.

[6] F.Tahami, R.Kazemi, S.Farhangi, “Fuzzy Based Stability Enhancement System for Four-Motor-Wheel Electric Vehicles,” SAE 2002 Transactions.

[7] F.Tahami, R.Kazemi, S.Farhangi. “Direct Yaw Control of an AllWheel-Drive EV Based on Fuzzy Logic and Neural Networks,” 2003-01-0956 SAE World Congress.

[8] F.Tahami, R.Kazemi, S.Farhangi. “Stability Assist System for a two-Motor-Drive Electric Vehicle using Fuzzy Logic,” 2003-01- 1285 SAE World Congress.

[9] D.Kim, S.Hwang, H.Kim, “Rear Motor Control for 4WD Hybrid Electric Vehicle Stability,” IEEE Conference, 2005, p. 86-91.

[10] H.Fujimoto, A.Tsumasaka, T.Noguchi, “Direct Yaw-moment Control of Electric Vehicle Based on Cornering Stiffness Estimation,” IEEE conference, 2005. p. 2626-2631

[11] H.Fujimoto, K.Fujii, N.Takahashi, “Traction and Yaw-rate Control of Electric Vehicle with Slip-ratio and Cornering Stiffness Estimation,” American Control Conference, july 2007. p. 5742- 5747.

[12] Weidong Xiang, Paul C. Richardson, Chenming Zhao, and Syed Mohammad, “Automobile Brake-by-Wire Control System Design and Analysis,” IEEE Transaction on Vehicular Technology, Vol. 57, No.1, January 2008.

[13] P. Naderi, A.Farhadi, “Non-Driven Wheels Application for Intelligent Multi Objective Control of Hybrid Vehicles,” International Journal of Robotic and Control, Vol.27, No. 2, 2012.


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