Narrow-track vehicle
A narrow-track vehicle is a vehicle that leaves a narrow ground track as it moves forward. Narrow-track vehicles may have lateral stability when stationary but usually lean into turns to prevent falling towards the outside.[1][2]
Narrow-track vehicles have unique dynamics that, in the case of wheeled vehicles, may be similar to bicycle and motorcycle dynamics and that may include countersteering.[3] Narrow-track vehicles can roll on wheels, slide, float, or hydroplane. The narrow profile can result in reduced aerodynamic drag, increased fuel efficiency, and reduced pavement requirements.[4][5] These types of vehicles have also been described as "man-wide vehicles" (MWV).[4]
Generally, cars with a static stability factor ( where = car width and = height of the center of gravity) of less than 0.6 are considered to be narrow cars due to physical reasons.[6] Non-narrow vehicles (those with a higher static stability factor) are more safe against rolling over while turning because they begin to skid before they can undergo enough turning acceleration to roll over; however, this is not always true for narrow vehicles.[6]
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See also
[edit]References
[edit]- ^ Mike Hanlon (November 19, 2009). "Narrow track vehicles - the convergence of the car and the motorcycle". New Atlas. Retrieved 2018-11-21.
- ^ J Jubin Antonya; K Jayabal (2016). "Rollover Dynamics of a Narrow Tilting Three-Wheeled Vehicle". International Conference on Mechanical, Manufacturing, Modeling and Mechatronics. doi:10.1051/matecconf/20165101002.
- ^ Jeffrey Too Chuan Tan; Hiroki Arakawa; Yoshihiro Suda (2016). "Steering Dynamics of Tilting Narrow Track Vehicle with Passive Front Wheel Design". Journal of Physics: Conference Series. 744 (1): 012218. Bibcode:2016JPhCS.744a2218T. doi:10.1088/1742-6596/744/1/012218.
- ^ a b Pauwelussen, J.P. (1999). "The dynamic behaviour of man-wide vehicles with an automatic active tilting mechanism". TUDelft. Archived from the original on 2018-11-12. Retrieved 2018-11-12.
- ^ Macy Jenkins (February 20, 2018). "Narrow Track Cars Being Touted As Solution To California's Road Congestion". CBS Broadcasting Inc. Retrieved 2018-11-21.
- ^ a b Tang, Chen; Khajepour, Amir (2019). Narrow Tilting Vehicles: Mechanism, Dynamics, and Control. Synthesis Lectures on Advances in Automotive Technology. Cham: Springer International Publishing. doi:10.1007/978-3-031-01501-4. ISBN 978-3-031-00373-8.