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Intelligent Real-Time 4WD Control Development to Improve Vehicle Traction and Handling Performance
Technical Paper
2022-01-7008
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
The transfer case adjusts the vehicle axle torque distribution by controlling the transfer case clutch torque, thereby improving vehicle traction and stability. This paper proposed an intelligent real-time 4WD control method, consist of intelligent preload control, active yaw control and slip control. When the vehicle is under stable driving conditions, the transfer case clutch torque is set to zero to obtain good economy performance. When the vehicle is under acceleration, climbing, slippery road or off-road conditions, the transfer case clutch preload torque control is large to achieve strong 4WD traction ability. In steering conditions, the transfer case clutch torque is adjusted through active yaw control to improve the vehicle handling and stability. When one single axle has a tendency to slip, the proposed slip control can quickly engage the transfer case clutch to avoid single wheel slip and improve vehicle traction performance. Through the real vehicle verification, the proposed control strategy can significantly improve the vehicle traction and handling performance.
Authors
- Jinlong Cui - China FAW Group Corporation R and D Center: First Automobile
- Yuanzhi Liu - China FAW Group Corporation R and D Center, China
- Aibin Wu - China FAW Group Corporation R and D Center, China
- Zehui Zhou - China FAW Group Corporation R and D Center, China
- Yang Zhao - China FAW Group Corporation R and D Center, China
- Qichun Sun - China FAW Group Corporation R and D Center, China
Citation
Cui, J., Liu, Y., Wu, A., Zhou, Z. et al., "Intelligent Real-Time 4WD Control Development to Improve Vehicle Traction and Handling Performance," SAE Technical Paper 2022-01-7008, 2022, https://doi.org/10.4271/2022-01-7008.Also In
References
- Lee , S.K. and Atkinson , N.M. Understanding the Interaction between Passive Four Wheel Drive and Stability Control Systems SAE Technical Paper 2002-01-1047 2002 https://doi.org/10.4271/2002-01-1047
- Gerhard , F. , Werner , P. , Hans-Stefan , B. , and Christian , B. xDrive The New Four-Wheel Drive Concept in the BMW X3 and BMW X5 ATZ Worldwide 106 2 2004 2 5 https://doi.org/10.1007/BF03224644
- Beiker , S.A. and Vachenauer , R.C. The Impact of Hybrid-Electric Powertrains on Chassis Systems and Vehicle Dynamics SAE Technical Paper 2009-01-0442 2009 https://doi.org/10.4271/2009-01-0442
- Hiroyuki , A. and Tsuyoshi , M. AWD Vehicle Simulation with the Intelligent Torque Controlled Coupling as a Fully Controllable AWD System SAE Technical Paper 2005-01-0552 2005 https://doi.org/10.4271/2005-01-0552
- Wang , J. , Wang , Y. , and Xie , F. Research on Self-Adaptive 4WD System SAE Technical Paper 2007-01-3753 2007 https://doi.org/10.4271/2007-01-3753
- Ryu , J. , Kim , Y. , Won , Y. et al. Development of Electronic Controlled Four Wheel Drive Vehicle by Using Performance Analysis Tool SAE Technical Paper 2009-01-1361 2009 https://doi.org/10.4271/2009-01-1361
- Sondkar , P. , Gharpure , S. , Schrand , V. , and Attibele , P. Longitudinal Vehicle Dynamics Modeling for AWD/4WD Vehicles to Study Torque Split between Front and Rear Axles SAE Int. J. Advances & Curr. Prac. in Mobility 2 5 2020 2987 2996 https://doi.org/10.4271/2020-01-1410
- Latif , R. , Azim , R. , Baqai , A. , and Shafi , I. Vehicle Modeling and Performance Evaluation Using Active Torque Distribution SAE Technical Paper 2014-01-0103 2014 https://doi.org/10.4271/2014-01-0103
- Panzani , G. et al. Designing On-Demand Four-Wheel-Drive Vehicles via Active Control of the Central Transfer Case IEEE Trans on Intelligent Transport System 11 4 2010 931 941
- Jonathan , C. , Hanna , B. et al. Torque Vectoring AWD Driveline: Design, Simulation, Capabilities and Control SAE Technical Paper 2004-01-0863 2004 https://doi.org/10.4271/2004-01-0863
- Jonathan , C. et al. Torque Vectoring Driveline: SUV-Based Demonstrator and Practical Actuation Technologies SAE Technical Paper 2005-01-0553 2005 https://doi.org/10.4271/2005-01-0553
- Zhao , Y. , Hui , Z.Z. , and Cui , J. Traction Control System of Electric Vehicle with 4 In-Wheel Motors Using Lyapunov Stability Analysis Algorithm SAE Technical Paper 2021-01-0122 2021 https://doi.org/10.4271/2021-01-0122
- Zhao , Y. , Cui , J. , Zhou , Z. , Fang , Y. et al. Direct Yaw Moment Control of Electric Vehicle with 4 In-Wheel Motors to Improve Handling and Stability SAE Technical Paper 2020-01-0993 2020 https://doi.org/10.4271/2020-01-0993