Abstract: An electrified fire fighting vehicle includes a chassis, a first high voltage component, a second high voltage component, a cable support, and a high voltage cable. The chassis includes a frame rail and defines a longitudinal length of the electrified fire fighting vehicle. The first high voltage component is positioned at a first location along the longitudinal length. The second high voltage component is positioned at a second location along the longitudinal length. The cable support is coupled to the frame rail. The cable support extends (a) along at least a portion of the longitudinal length and (b) beneath the frame rail. The high voltage cable provides power between the first location and the second location. At least a portion of the high voltage cable is routed along the cable support such that the portion of the high voltage cable is suspended underneath and routed along the first frame rail.

Abstract: An electrified fire fighting vehicle includes a chassis defining a longitudinal length of the electrified fire fighting vehicle, a first high voltage component positioned at a first location along the longitudinal length, a second high voltage component positioned at a second location along the longitudinal length, and a raceway assembly. The raceway assembly includes a conduit and a high voltage cable. The high voltage cable provides power between the first location and the second location. To facilitate thermally regulating the high voltage cable, at least one of (a) the conduit defines a plurality of vents, (b) the raceway assembly includes a cooling element disposed within the conduit, or (c) the conduit comprises a thermally conductive material.

Abstract: An electrified fire fighting vehicle includes a chassis, a first high voltage component, a second high voltage component, at least one of a torque box or a water tank supported by the chassis, and a high voltage cable. The chassis defines a longitudinal length of the electrified vehicle. The first high voltage component is positioned at a first location along the longitudinal length. The second high voltage component is positioned at a second location along the longitudinal length. The high voltage cable provides power between the first location and the second location. The high voltage cable is routed through one or more of the at least one of the torque box or the water tank, or the high voltage cable is routed along a notch defined by one or more of the at least one of the torque box or the water tank.

Abstract: An electrified fire fighting vehicle includes a chassis having a pair of frame rails, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, an electric motor coupled to the chassis between the pair of frame rails, an energy storage system positioned between the cab and the body, and a shield. The energy storage system includes a power cable coupled to the electric motor. The shield is positioned (a) between the pair of frame rails and (b) at least partially along and around a motor housing of the electric motor such that the power cable is disposed between the motor housing and the shield.

Abstract: An electrified fire fighting vehicle includes a chassis, at least one of a water pump, a water tank, or an aerial ladder supported by the chassis, a first high voltage component, a second high voltage component, and a high voltage cable. The chassis includes a first frame rail and a second frame rail. The chassis defines a longitudinal length of the electrified fire fighting vehicle. The first high voltage component is positioned at a first location along the longitudinal length. The second high voltage component is positioned at a second location along the longitudinal length. The high voltage cable provides power between the first location and the second location. At least a portion of the high voltage cable is received within the first frame rail such that the portion of the high voltage cable is routed along and through an interior channel of the first frame rail.

Abstract: An electrified fire fighting vehicle includes a chassis having a pair of frame rails, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, an electric motor positioned between the pair of frame rails, an energy storage system positioned between the cab and the body, and a covering. The energy storage system includes a power cable coupled to the electric motor. The covering extends across the pair of frame rails and over at least a portion of the electric motor such that the power cable is positioned underneath the covering.

Abstract: A high voltage system for an electrified vehicle includes a first high voltage component, a second high voltage component, and a high voltage cable. The high voltage cable provides power between a first location of the first high voltage component and a second location of the second high voltage component. The high voltage cable includes a core, a sheath disposed around and along the core, and one or more detection layers at least one of (a) disposed around and along the sheath or (b) disposed within the sheath. The one or more detection layers are configured to facilitate detecting at least one of (a) damage or wear to the sheath or (b) a location of the damage or wear along the sheath.

Abstract: An electrified vehicle includes a chassis, an energy storage system supported by the chassis, a high voltage component, a conduit, a high voltage cable, and a controller. The high voltage cable is routed through the conduit and provides high voltage power between the energy storage system and the high voltage component. The controller is configured to (a) initiate an alarm if a person is attempting to access the high voltage cable with the high voltage power active, (b) disengage a contactor of the energy storage system to stop providing the high voltage power through the high voltage cable in response to (i) the person attempting to access the high voltage cable with the high voltage power active and/or (ii) the person accessing the conduit, and/or (c) prevent access to the high voltage cable in response to the contactor being engaged and the high voltage power being active.

Abstract: An electrified fire fighting vehicle includes a battery pack, an electromagnetic device, an engine, and a controller. The controller is configured to monitor a state-of-charge of the battery pack, operate the electromagnetic device using stored energy in the battery pack to provide a performance condition including (i) accelerating the electrified fire fighting vehicle to a driving speed of at least 50 miles-per-hour in an acceleration time and (ii) maintaining or exceeding the driving speed for a period of time, and start and operate the engine in response to a start condition to facilitate reserving sufficient stored energy in the battery pack such that the state-of-charge is maintained above a minimum state-of-charge threshold that is sufficient to facilitate the performance condition. The acceleration time is 30 second or less. An aggregate of the acceleration time and the period of time is at least 3 minutes.

Abstract: An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a water tank supported by the chassis, an energy storage system coupled to the chassis, a water pump supported by the chassis, and an electromagnetic device electrically coupled to the energy storage system. The electromagnetic device is coupled to the water pump and at least one of the front axle or the rear axle. The electromagnetic device is configured to receive stored energy from the energy storage system and provide a mechanical output to selectively drive the water pump and the at least one of the front axle or the rear axle.

Abstract: An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a water tank supported by the chassis, an energy storage system coupled to the chassis and positioned rearward of the cab, a water pump supported by the chassis, and an electromagnetic device electrically coupled to the energy storage system. The electromagnetic device is coupled to the water pump and at least one of the front axle or the rear axle. The electromagnetic device is configured to receive stored energy from the energy storage system and provide a mechanical output to selectively drive the water pump and the at least one of the front axle or the rear axle.

Abstract: A fire fighting vehicle includes a chassis, a front axle, a rear axle, an engine, a battery system, an electromagnetic device, an accessory drive, and a controller. The accessory drive is positioned to receive a mechanical input from the engine and the electromagnetic device. The controller is configured to selectively engage a plurality of operational modes including a standby mode and a hybrid mode. According to the standby mode, the controller is configured to operate the electromagnetic device using stored energy stored in the battery system to drive the accessory drive with the engine off. According to the hybrid mode, the controller is configured to operate both the engine and the electromagnetic device.

Abstract: A fire apparatus includes a chassis, a cab coupled to the chassis, a pump system coupled to the chassis and positioned at least partially behind the cab, and a driveline. The driveline includes a prime mover positioned beneath the cab and coupled to the chassis, a transmission, a sandwiched power take-off unit, and a brake system. The sandwiched power take-off unit is positioned between (a) the prime mover and (b) the transmission and the pump system. The brake system is positioned between the sandwiched power take-off unit and the pump system.

Abstract: A fire fighting vehicle includes a chassis, a front axle, a rear axle, a powertrain, an accessory drive, and a controller. The powertrain includes an engine, a battery system, and an electromechanical transmission coupled to the battery system, the engine, and at least one of the front axle or the rear axle. 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 a plurality of operational modes including a standby mode and a hybrid mode. According to the standby mode, the controller is configured to operate the electromechanical transmission using stored energy stored in the battery system to drive the accessory drive with the engine off. According to the hybrid mode, the controller is configured to operate both the engine and the electromechanical transmission.

Abstract: An electrified fire fighting vehicle includes a battery pack, an electromagnetic device, an engine, and a controller. The controller is configured to monitor a state-of-charge of the battery pack, operate the electromagnetic device using stored energy in the battery pack to provide a performance condition including (i) accelerating the electrified fire fighting vehicle to a driving speed of at least 50 miles-per-hour in an acceleration time and (ii) maintaining or exceeding the driving speed for a period of time, and start and operate the engine in response to a start condition to facilitate reserving sufficient stored energy in the battery pack such that the state-of-charge is maintained above a minimum state-of-charge threshold that is sufficient to facilitate the performance condition. The acceleration time is 30 second or less. An aggregate of the acceleration time and the period of time is at least 3 minutes.

Abstract: An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a water tank supported by the chassis, an energy storage system coupled to the chassis and positioned rearward of the cab, a water pump supported by the chassis, and an electromagnetic device electrically coupled to the energy storage system. The electromagnetic device is coupled to the water pump and at least one of the front axle or the rear axle. The electromagnetic device is configured to receive stored energy from the energy storage system and provide a mechanical output to selectively drive the water pump and the at least one of the front axle or the rear axle.

Abstract: A fluid distribution system includes a first flow meter configured to be positioned along an agent line, a metering valve configured to be positioned downstream of the first flow meter, a second flow meter configured to be positioned downstream of the first flow meter and an eductor, and a controller configured to selectively operate the fluid distribution system in a testing mode where the controller is configured to acquire a first flow rate of a fluid flowing through the first flow meter and a second flow rate of the fluid flowing through the second flow meter, determine a performance characteristic based on the first flow rate and the second flow rate, and modulate a current setting of the metering valve from a first setting to a second setting and conduct the testing mode sequence again at the second setting to verify the fluid distribution system is performing properly.

Abstract: A fire fighting vehicle includes a powertrain including an engine, a battery pack, and an electromechanical transmission; a power divider; and a controller. The power divider is positioned between the engine, the pump, and the electromechanical transmission. The controller is configured to monitor a state-of-charge of the battery pack and operate the engine, the power divider, and the electromechanical transmission such that the state-of-charge is maintained above a minimum state-of-charge threshold that is sufficient to facilitate (i) accelerating the fire fighting vehicle to a driving speed of at least 50 miles-per-hour in an acceleration time and (ii) maintaining or exceeding the driving speed for a period of time. An aggregate of the acceleration time and the period of time is at least three minutes.

Abstract: A fluid distribution system includes a water line configured to receive water from a water source, an agent line configured to receive agent from an agent source, a flush line configured to receive the water from the water source and connecting to the agent line at a junction, a flush valve positioned to selectively prevent the water from flowing along the flush line, an agent valve positioned to selectively prevent the agent from flowing along the agent line, a first flow meter positioned along the agent line downstream of the junction, a second flow meter positioned downstream of the first flow meter, an eductor coupled to the agent line and the water line downstream of the first flow meter and upstream of the second flow meter, a metering valve positioned downstream of the first flow meter and upstream of the eductor, and a controller.

Abstract: A fire fighting vehicle includes a chassis, tractive elements coupled to the chassis, a pump coupled to the chassis, a discharge fluidly coupled to the pump, an accessory module coupled to the chassis, and an electric motor coupled to the chassis, the pump, and the accessory module. The accessory module is configured to receive a mechanical energy input and provide at least one of electrical energy or fluid energy. The electric motor is configured to provide mechanical energy 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.