Steering performance as a vehicle dynamics attribute of a heavy commercial vehicle is dependent on series of design and tunable steering system parameters. The driver steering input as angle and torque is transmitted through steering column to the steering box with a combined function created by the steering column angles and orientations.
In case the angle and torque transmission from steering wheel to steering box through steering column cannot be linearized because of the design constraints, the steering column input and output torque, angle and angular speed relations should be optimized for a good vehicle dynamics performance and in compliance with the OEM brand DNA
This paper represents series of CAE analyses, optimization studies, verification tests and subjective evaluations related to the tunable parameters of the steering column.