DESIGN OF AN AUTOMATIC HILL START ASSISTANCE SYSTEM Arun Pranesh M 1 , *R. Rohith Renish 2 , Niruban Projoth 3 1,2,3 Assistant Professor, Department of Mechanical Engineering , 1 Kathir College of Engineering, Coimbatore 641062, India. 2,3 VelTech Rangarajan Dr Sagunthala R&D, Institute of Science and Technology Chennai 600062, India. April 27, 2018 Abstract There are a number of reported accident cases which are caused due to vehicles moving backward in hilly areas and colliding with the ones parked behind. This situation is even more severe in high altitudes where the risk of running off the road may lead to life threatening accidents. It is better to have an computerized driving safety gadgets, in order to prevent this sort of problematic situation from happening before the driver even has to think about it. Hence a con- cept has been designed to reduce the stress on drivers while driving in hilly terrain. The project aims to design and de- velop an automatic hill start assistance system to prevent the roll back of the vehicle while attempting to move a vehi- cle during hilly driving conditions. This could improve the safety and drivability of vehicles plying on hills specifically while driving in off roads and also on low-traction surfaces. The proposed system consists of an internal ratchet pawl 1 International Journal of Pure and Applied Mathematics Volume 118 No. 24 2018 ISSN: 1314-3395 (on-line version) url: http://www.acadpubl.eu/hub/ Special Issue http://www.acadpubl.eu/hub/