A new parallel-series configuration for hybridization of a line-haul truck

The hybridization of the articulated line-haul heavy duty truck with self-propelled trailer is investigated. In this innovative configuration, the tractor electric hybrid powertrain is arranged in series with the trailer electric motor that provides a share of total traction efforts of the vehicle. This configuration could provide a regenerative braking capability in the trailer and improves the vehicle longitudinal handling and enhances the vehicle lateral stability. Detailed mathematical modeling of the drivetrain components is developed and the energy consumption analyses for typical driving cycles are performed. Simulation results showed the worthwhile capability of the proposed hybrid drivetrain to improve the regenerative braking and enhance the fuel efficiency of the line-haul trucks.