DB Cargo, DB Fahrzeuginstandhaltung, DB Systemtechnik, Toshiba and Henschel have joined forces in project HELMS, short for Hybrid ELectro-Mechanical Shunter. Together the companies are developing a new hybrid shunting locomotive based on DB Cargo’s V90 locomotive design. Two prototypes will be built.
In short, project HELMS involves the replacement of the hydraulic transmission of the existing V90 shunting locomotive by a system comprised of a power converter cubicle, battery cubicle, generator, traction motor and planetary gear. The main goal of the project is to improve life cycle costs and reduce fuel consumption.
When ready, the HELMS-V90 locomotive will have the following characteristics:
- Hybrid type: Series parallel Hybrid
- Maximum output (at wheel rim): 750 kW
- Maximum operation speed: 80 km/h
- Diesel engine power output: 1.000 kW
- Generator (x1): Asynchronous type
- Traction motor (x2): Asynchronous type
- Traction converter (x1): IGBT-type
- Battery: SCiB (for traction) 92.25 kWh
SCiB is a name for Toshiba’s battery technology. SCiB batteries have around 15.000 charge-discharge cycles, are usable with high current and ensure stable operation below 0 degrees Celsius. Toshiba has completed a similar locomotive project in Japan, when developing the HD300 series heavy duty shunter for JP Freight.
Who will do what?
- DB Cargo: provides two locomotives
- DB Systemtechnik: Integration Engineering and EMS
- DB Fahrzeuginstandhaltung: Assembly
- Henschel: Planetary gear design and manufacture
- Toshiba: Power converter, traction battery, E-machines, hybrid system control