DEVELOPMENT OF AN ELECTRO- MECHANICAL SPEED LIMITING DEVICE FOR AUTOMOBILES

Abstract

Overspeeding has become a problem to our motorists because they want to reach their destination on time, forgetting that it is better to be late than be the late. This project discusses mechanical studies, the solution speed-limiting to the problem of overspeeding by developing an electro-mechanical speed-limiting device for automobiles. using Toyota and Peugeot cars as case studies. A simple, portable and cheap electro- mechanical device was designed and constructed. It was installed under the throttle pedal to reduce throttle valve opening, the quantity of fuel supplied into the combustion chamber and finally reduce the speed of the vehicle. The performance evaluation carried out showed that when the driver wanted to exceed the speed of 100km/hr, the circuit closed and a very loud alarm sounded and it was stopped when the speed returned to 100km/hr. Data analysis shows that the height of the device is inversely proportional to the speed of the vehicle and also that the percentage change in speed when ascending and descending a slope diminishes as the speed of the vehicle increases. Also, the statistical correlation between the height of mechanical device and the speed was 98%.