OPERATIONAL MODES FOR HYBRID FIRE FIGHTING VEHICLE

    公开(公告)号:WO2021072123A1

    公开(公告)日:2021-04-15

    申请号:PCT/US2020/054845

    申请日:2020-10-08

    Abstract: A fire fighting vehicle includes a powertrain, an accessory drive, and a controller. The powertrain includes an engine, an energy storage device, and an electromechanical transmission (i) electrically coupled to the energy storage device and (ii) selectively mechanically coupled to the engine. The electromechanical transmission is configured to (a) selectively drive a front axle and/or a rear axle and (b) selectively generate energy for storage in the energy storage device as stored energy. The accessory drive is positioned to receive a mechanical input from the engine and the electromechanical transmission. The controller is configured to selectively operate the powertrain in (i) a standby mode by operating the electromechanical transmission using the stored energy to drive the accessory drive with the engine off and (ii) a rollout mode by operating the electromechanical transmission using the stored energy to drive the the front axle and/or the rear axle with the engine off.

    HYBRID FIRE FIGHTING VEHICLE
    3.
    发明申请

    公开(公告)号:WO2021072121A1

    公开(公告)日:2021-04-15

    申请号:PCT/US2020/054843

    申请日:2020-10-08

    Abstract: A fire fighting vehicle includes a front axle, a rear axle, an engine, an energy storage device, an electromechanical transmission, a fluid tank configured to store a fluid, a pump configured to provide the fluid from the fluid tank to a fluid outlet, and a power divider positioned between the engine, the pump, and the electromechanical transmission. The power divider includes a first interface coupled to the engine, a second interface coupled to the pump, and a third interface coupled to the electromechanical transmission. The electromechanical transmission is (i) selectively mechanically coupled to the engine by the power divider and (ii) electrically coupled to the energy storage device to facilitate driving at least one of the front axle or the rear axle. The pump is selectively mechanically coupled to the engine by the power divider to facilitate pumping the fluid to the fluid outlet.

    VEHICLE WITH ACCESSORY DRIVE
    4.
    发明申请

    公开(公告)号:WO2021072087A1

    公开(公告)日:2021-04-15

    申请号:PCT/US2020/054800

    申请日:2020-10-08

    Abstract: A fire fighting vehicle (10) includes a chassis (12), tractive elements (14, 16) coupled to the chassis (12), a pump (140) coupled to the chassis (12), a discharge (100, 170, 180) fluidly coupled to the pump (140), an accessory module (290) coupled to the chassis (12), and an electric motor (240) coupled to the chassis (12), the pump (140), and the accessory module. The accessory module is configured to receive mechanical energy and provide at least one of electrical energy or fluid energy. The electric motor is configured to drive (a) the pump to provide fluid to the discharge such that the fluid is expelled from the discharge and (b) the accessory module to provide the at least one of electrical energy or fluid energy.

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