Dynamic rollover-safety index-based tilt optimisation encompassing road configurations for narrow three-wheelers: Balancing energy efficiency and ride comfort

被引:0
|
作者
Dandiwala, Ankitkumar [1 ]
Chakraborty, Basab [1 ,3 ]
Chakravarty, Debashish [2 ]
机构
[1] Indian Inst Technol Kharagpur, Rajendra Mishra Sch Engn Entrepreneurship, Kharagpur, India
[2] Indian Inst Technol Kharagpur, Min Engn Dept, Kharagpur, India
[3] Indian Inst Technol Kharagpur, Rajendra Mishra Sch Engn Entrepreneurship, West Medinipur 721302, W Bengal, India
关键词
Rollover stability; road bank angle; grading; vehicle dynamics; active tilt control; goal programming;
D O I
10.1177/14644193231207496
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The active tilt-controlled narrow three-wheelers (3Ws) equipped with a closed cabin aim to offer a comfortable driving experience comparable to four-wheelers while maintaining the manoeuvrability of two-wheelers without compromising on speed. Based on this concept, this study explores a tilt control strategy for narrow 3Ws. While previous research has established a steady-state tilt angle considering a zero-track width, this study incorporates track width due to the multi-wheel axle configuration. This novel approach not only withstands unbalanced lateral acceleration but also saves significant tilting torque. Unnecessary tilting is minimised by introducing a tilt actuation system (TAS) based on a unique dynamic rollover index. Central to the original contribution is the stability margin (SM), a dynamic rollover-safety index considering longitudinal and lateral dynamics, surpassing the traditional rollover index load transfer ratio, particularly for delta 3Ws. This work proposes a desired SM threshold-dependent steady-state tilt angle, activating TAS only when necessary. This pioneering method optimises the desired SM threshold using goal programming. Additionally, this research addresses a critical oversight in previous studies by accounting for the influence of road slopes, ensuring consistent stability across diverse road conditions. It is crucial to note that the proposed rollover index-based tilting approach markedly outperforms the conventional methods, reinforcing its originality and potential for future vehicular design.
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页码:569 / 584
页数:16
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