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  • Lateral Stability in Heavy Commercial Road Vehicles during Combined Cornering and Emergency Braking
Lateral Stability in Heavy Commercial Road Vehicles during Combined Cornering and Emergency Braking

Lateral Stability in Heavy Commercial Road Vehicles during Combined Cornering and Emergency Braking

Date2nd Feb 2022

Time03:00 PM

Venue https://meet.google.com/yta-gace-vak

PAST EVENT

Details

Road traffic accidents are a global concern, with approximately 1.35 million human fatalities from road vehicle crashes every year. In the year 2019, India reported an average of 414 human fatalities every day due to road accidents, and Heavy Commercial Road Vehicles (HCRVs) were involved in 31 % of total fatalities, despite their low share in total registered vehicles. Accidents involving HCRVs often have severe repercussions such as loss of human lives and substantial financial loss. The development of active vehicle safety systems such as Electronic Stability Control (ESC) and Anti-lock Braking System (ABS) is currently prioritized for improving road traffic safety. Indian legislation has made ABS mandatory for all classes of HCRVs, and subsequently, ESC systems may become mandatory for a broader class of HCRVs in India over the next few years. One of the main functionalities in ESC is Directional Stability Control (DSC) which prevents yaw instability scenarios by controlling vehicle yaw rate and sideslip. Vehicles are prone to yaw instability, particularly during complex maneuvers like combined cornering and emergency braking on low friction surfaces. While ABS prevents wheel lock and regains vehicle steerability, directional performance may be compromised due to the unavailability of lateral forces during its operation. In this work, various approaches for DSC are reviewed, and a "direct yaw-moment control" framework integrated with ABS is proposed for vehicle stability during combined cornering and emergency braking. The proposed framework is expected to achieve an effective trade-off between directional stability and braking performance and pave the way for further investigations in advanced integrated active chassis systems.

Speakers

Mr. Patil Harshal Anil, ED17D200

Department of Engineering Design