South Korea: The project of the Korea Railroad Research Institute (KRRI) envisages increasing the speed of HSR trains and reducing energy consumption through the use of compact, ‘capsule-type’ bogies shielded with aerodynamic covers.
The H-shaped inside frames, planned to be built from I-beams, are expected to become 30% lighter than traditional constructions. The technology will also incorporate a permanent magnet synchronous motor and an improved reduction drive. To ensure ventilation of the inside-frame bogie, the electro-mechanical brakes will be fitted with a cooling system.
Concept of movement of the new bogie for high-speed trains from KRRI (AI-improved). Source: KRRI
As reported by KRRI, the conducted simulations have proven the new bogie stable even at speeds over 550 km/h. The innovation is intended for the domestic market and potential export.
It is worth noting that similar design structures are also being developed by Siemens Mobility with its Velaro Novo project and CRRC with the CR450 train.
