Study of the Effects of Regenerative Braking System on a Hybrid Diagnostic Train

Nowadays, mobility represents a key sector to achieve the goal of carbon neutrality. Indeed, development hybrid powertrains is contributing reduction in environmental impact vehicles. One most promising energy-saving solutions regenerative braking, which enables deceleration while recovering energy, otherwise wasted. Even though much scientific community effort has been addressed optimization this technology automotive field, increase energy storage systems efficiencies overcoming constraints related reuse electric railway This solution could be extremely useful for those vehicles operate on non-electrified lines, where traction usually provided by diesel engines. For reason, present work focuses how braking exploited diesel-powered rail applications. In further detail, diagnostic train working real lines considered as case study. Given duty-cycle vehicle, simulation model developed with aim evaluating amount recovered during phases and, consequently, fuel saving and avoided CO2 emissions. As result, analysis shows an improved efficiency propulsion system. Compared pure operation, it leads savings 20%, emissions 22.3 kg 23.25 kWh stored battery at end route.