Abstract: A locomotive-mounted power battery pack fire safety control system includes a power battery pack, a power battery management system main controller, a rolling stock microcomputer system and a rolling stock display screen. The power battery pack is an enclosed installation isolated from external air. An inert gas injection pipe, a smoke detector and a temperature detector are arranged at the top end inside the power battery pack. An inert gas storage device is arranged outside the power battery pack. The inert gas storage device is connected with the inert gas injection pipe. A pressure detector and an inert gas injection control switch are arranged in turn on a pipeline through which the inert gas storage device discharges an inert gas to the power battery pack. The pressure detector and the inert gas injection control switch are connected with the rolling stock microcomputer system.

Abstract: A topology structure of a power battery pack for a diesel-electric hybrid locomotive includes a plurality of components. A chopper unit is connected in parallel to a support capacitor, an AC/DC module, a DC/AC module, a reactor unit and a power battery system. The power battery system includes several groups of power modules. The power module includes a contactor unit, a current sensor, a fuse, a power battery, and a voltage sensor. The contactor unit, the current sensor and the power battery are connected in series. Two ends of the voltage sensor are respectively disposed at two ends of the power battery. A locomotive microcomputer is connected to a DUC controller and a power battery management system. The DUC controller is connected to the DC/AC module, the chopper unit and the contactor unit. The power battery management system is connected to the contactor unit.

Abstract: A locomotive-mounted power battery pack fire safety control system includes a power battery pack, a power battery management system main controller, a rolling stock microcomputer system and a rolling stock display screen. The power battery pack is an enclosed installation isolated from external air. An inert gas injection pipe, a smoke detector and a temperature detector are arranged at the top end inside the power battery pack. An inert gas storage device is arranged outside the power battery pack. The inert gas storage device is connected with the inert gas injection pipe. A pressure detector and an inert gas injection control switch are arranged in turn on a pipeline through which the inert gas storage device discharges an inert gas to the power battery pack. The pressure detector and the inert gas injection control switch are connected with the rolling stock microcomputer system.