Performance Evaluation of a Vehicle Using Different Fuels through Speed Recovery Tests on a Chassis Dynamometer

Speed Recovery is an important performance metric for vehicles and can directly affect passenger safety. In situations such as overtaking, a quick response from the vehicle can be crucial to avoid accidents. In this study, a conventional light vehicle was tested using seven fuels with different concentrations of ethanol, gasoline, and water to evaluate its performance through speed recovery tests on a chassis dynamometer. The SAE J1491 standard was used to conduct the tests third and fourth gears and two different speed ranges for each gear, from 40 to 80 km/k and 60 to 100 km/h. The results indicated that pure anhydrous ethanol (E100) showed the best performance, which can be attributed to its high-octane rating and greater calorific value compared to gasoline. In addition, the use of pure anhydrous ethanol can contribute to greater energy efficiency and reduced emissions of polluting gases, which is important for the sustainability of the automotive industry. Speed recovery tests on chassis dynamometer can be a valuable tool to evaluate vehicle performance under different usage conditions and assist in decision making by the automotive industry and consumers.