Calculating Maximum Steering Angle of a Car

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Discussion Overview

The discussion revolves around calculating the maximum steering angle of a car, with a focus on the relationship between steering angle and turning radius. Participants explore the necessary parameters for this calculation and the implications of different definitions of maximum steering angle.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant inquires about the calculation of maximum steering angle given specific parameters such as turning radius, wheelbase, and track width.
  • Another participant suggests consulting automotive engineering books for further information.
  • A later reply emphasizes the importance of clarifying what is meant by maximum steering angle, distinguishing between the actual wheel rotation and the turning motion of the car.
  • It is noted that at low speeds, the maximum steering angle is influenced by the geometry of the suspension and wheel clearance, while at higher speeds, the slip angle of the tire plays a significant role.
  • References to specific literature, such as SAE publications and "Fundamentals of Vehicle Dynamics" by Gillespie, are provided as potential resources for further exploration.

Areas of Agreement / Disagreement

Participants express differing views on the definition of maximum steering angle and its dependence on various factors, indicating that the discussion remains unresolved with multiple perspectives presented.

Contextual Notes

Participants have not reached a consensus on the specific relationship between steering angle and turning radius, nor have they fully clarified the assumptions underlying their definitions of maximum steering angle.

varunsangani
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sir,

how can we calculate maximum steering angle of a car. i have the following details:
turning radius = 4.6 mts
wheel base= 2360mm
track=1495mm
also can you please suggest the relation for steering angle and turning radius and what are the values necessary for calculation of steering angle .
 
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Have you tried looking at any automotive engineering books?
 
Have you tried looking at any automotive engineering books?

sir, i have tried searching the net so far, can you please suggest me any sites also
 
Hi Varun,

You can use the quote feature by typing
and /quote (the last one should also be in [ ]'s). I would look at SAE publications, and probably Fundamentals of Vehicle Dynamics by Gillespie.
 
see post in Mech Eng forum

Race car suspension Class

Old Jul22-09, 12:03 PM Last edited by Ranger Mike; Jul22-09 at 12:15 PM.. #1
Ranger Mike
 
sir,
i will definitely check up and come back.
 
varunsangani said:
sir,
i will definitely check up and come back.

It also depends on what you mean by maximum steering angle, do you mean acutally how much the wheel rotates, or how much you turn as they are not the same thing.

At low speeds your max steering angle is simply determined by the geometry of your suspension and wheel/arches. ie you put the steering lock before the wheel rubs on anything.

At higher speeds, slip angle of the tyre is what controls the turn. It is related (but not linearly) to steering input.

As far as I remember this was convered in Ranger Mikes suspension class.
 

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