Medium-duty Engine Market Trends

Medium-duty Engine Market Trends

Manufacturers are enhancing medium-duty engine fuel efficiency through turbocharging, variable valve timing (VVT), and direct fuel injection. To meet stringent emissions regulations, they are also implementing advanced exhaust treatment technologies like selective catalytic reduction (SCR) and exhaust gas recirculation (EGR) systems. These innovations reduce nitrogen oxide (NOx) and particulate emissions, making medium-duty trucks more environmentally friendly. As global fuel efficiency regulations tighten, these advancements are vital for maintaining competitiveness.
 

For instance, in May 2023, Eaton developed variable valve actuation technology for medium-duty trucks in the U.S. market. Moreover, Eaton's deactivating roller technology modulates the intake valve for early or late closing. This Late Intake Valve Closing (LIVC) enhances efficiency by lowering the effective compression ratio compared to the expansion ratio, resulting in higher exhaust temperatures.
 

As electric vehicles (EVs) gain traction in commercial fleets, medium-duty engines are being replaced by electric drivetrains in delivery trucks and urban buses. This shift is driven by the need for reduced emissions, lower operational costs, and government incentives. Companies like Freightliner and BYD lead in offering electric Class 4-6 trucks, reducing reliance on traditional engines.