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Reduction of Steering Effort and Turning Circle Diameter for Mechanical Steering in Light Commercial Vehicles for Better Driver Comfort
Technical Paper
2011-01-2147
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
New generation light commercial vehicles are expected to have lower steering effort, high self centering and less turning circle diameter covering large variety of wheelbases from 2.8 m to 4.5 m even with mechanical steering and keeping same number of total turns of steering wheel compared to old generation light commercial vehicles.
To address above requirements, below parameters related to steering and rigid front axle were studied.
- 1Caster angle of front axle
- 2Steering compliance and Steering ball joint articulation angle
- 3Front axle kingpin axial play
- 4Steering gearbox ratio
- 5Pitman arm length
The effect of above parameters was studied in isolation and combination. This optimization has resulted in least steering effort and least turning circle diameter in light commercial vehicles with mechanical steering and option of power steering could be eliminated for cost reduction.
The changes which were done have reduced the steering effort by 44% and turning circle diameter by 13.5% compared to old generation light commercial vehicles.
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Citation
Kulkarni, N., Jadhav, N., and Deshmukh, M., "Reduction of Steering Effort and Turning Circle Diameter for Mechanical Steering in Light Commercial Vehicles for Better Driver Comfort," SAE Technical Paper 2011-01-2147, 2011, https://doi.org/10.4271/2011-01-2147.Also In
References
- Upadhyay, V. Pathak, A. Kshirsagar, A. Khan, I. et al. “Development of Methodology for Steering Effort Improvement for Mechanical Steering in Commercial Vehicles,” SAE Technical Paper 2010-01-1887 2010 10.4271/2010-01-1887
- IS 11948 1999 Automotive vehicle- Steering effort- Method of evaluation