| 摘要 |
A diesel-electric locomotive (100) has two separate engine systems, including a large engine system (200) and a small engine system (300). The power output from the separate engine systems may be combined to power the locomotive's traction motors. When the locomotive requires low power output for propulsion, only the small engine system (300) is used to power the traction motors. When the locomotive requires higher power output, only the large engine system (200) is used to power the traction motors. When the locomotive requires maximum power output, the small and the large engine systems (300, 200) may both be used and their power output combined to power the traction motors. Also, a unique control strategy maintains a smooth delivery of power to the traction motors in the event that one engine shuts down or starts as a result of a change in the commanded power output of the locomotive. |
