Design and Validation of Safety Cruise Control System for Automobiles

TL;DR

This paper presents a safety cruise control system that uses synchronous programming to prevent rear-end collisions by providing escalating warnings and taking control at high threat levels, verified through formal methods.

Contribution

It introduces a novel safety cruise control system implemented in ESTEREL, with formal verification of its properties to ensure robustness and reliability.

Findings

System effectively warns drivers at increasing threat levels.

At highest threat, system controls vehicle speed and braking.

Formal verification confirms system properties and safety guarantees.

Abstract

In light of the recent humongous growth of the human population worldwide, there has also been a voluminous and uncontrolled growth of vehicles, which has consequently increased the number of road accidents to a large extent. In lieu of a solution to the above mentioned issue, our system is an attempt to mitigate the same using synchronous programming language. The aim is to develop a safety crash warning system that will address the rear end crashes and also take over the controlling of the vehicle when the threat is at a very high level. Adapting according to the environmental conditions is also a prominent feature of the system. Safety System provides warnings to drivers to assist in avoiding rear-end crashes with other vehicles. Initially the system provides a low level alarm and as the severity of the threat increases the level of warnings or alerts also rises. At the highest level of threat, the system enters in a Cruise Control Mode, wherein the system controls the speed of the vehicle by controlling the engine throttle and if permitted, the brake system of the vehicle. We focus on this crash area as it has a very high percentage of the crash-related fatalities. To prove the feasibility, robustness and reliability of the system, we have also proved some of the properties of the system using temporal logic along with a reference implementation in ESTEREL. To bolster the same, we have formally verified various properties of the system along with their proofs.