Advance Techniques to Optimize Variable Gear Ratio Steering for High Centre of Gravity Vehicles Mahindra and Mahindra, Limited

Format:

Book

Conference/Event

Author/Creator:

Rewale, Pratik, author.

Contributor:

Hussain, Inzamam

Kopiec, Jakub

Kumar, Deva

Nehal, S B.

Rasal, Shraddhesh

Conference Name:

Symposium on International Automotive Technology (2026) (2026-01-28 : Pune, India)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2026

Summary:

Vehicles with a high center of gravity (CG) and moderate wheel track, like compact Sport Utility Vehicles (SUVs), have a relatively low Static Stability Factor (SSF) and thus are inherently less stable and more susceptible to rollover crashes. Moreover, to be more maneuverable in highly populated urban areas, a smaller Turning Circle Diameter (TCD) is necessary. Here, Variable Gear Ratio (VGR) steering systems have major benefits over traditional Constant Gear Ratio (CGR) systems in terms of enhancing both roll stability and agility.To adapt VGR steering systems to a particular vehicle dynamic, Full Vehicle (FV) and Driver-in-the-Loop (DIL) simulations are utilized. Using this method, exact calibration is possible according to realistic driving conditions so that the VGR steering C-factor curve is properly tuned for optimal handling in on-center, off-centre, and transitional areas of the Steering Wheel Angle (SWA). Primary performance measurese.g., SWA gradients at different lateral accelerations and C-factor changes for different SWA rangesare examined in the DIL environment to maintain a natural feel during steering. In addition, DIL simulation allows a check on cycloidal curve character, manufacturing asymmetry, and its effect on total drive performance

Notes:

Vendor supplied data

Publisher Number:

2026-26-0086

Access Restriction:

Restricted for use by site license