Abstract: An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, a generator, an engine coupled to the generator, a service panel having one or more export power ports, a battery pack, and a power distribution system. The power distribution system includes an inverter coupled to the generator and a power distribution unit coupled to the battery pack, the inverter, and the service panel. The power distribution system is configured to facilitate exporting power provided by the generator through the one or more export power ports of the service panel independent of a function of the battery pack and independent of an availability of charge within the battery pack.

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, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, at least one of an aerial ladder, a torque box coupled to the chassis and the aerial ladder, or a water tank, and a battery pack positioned at least one of beneath the water tank or within the torque box.

Abstract: An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, an electric motor coupled to the chassis, and an energy storage system positioned between the cab and the body. The energy storage system includes a rack, a battery pack, and a power distribution system. The rack extends upward from the chassis. The rack defines an interior chamber. The battery pack is positioned within the interior chamber. The power distribution system is positioned within the interior chamber. The power distribution system includes an inverter having a first interface electrically coupled to the electric motor and a second interface, a power distribution unit having a third interface and a fourth interface electrically coupled to the battery pack, and a bus bar extending between the second interface of the inverter and the third interface of the power distribution unit.

Abstract: An electrified fire fighting vehicle includes a chassis, an energy storage system supported on the chassis, and a breakaway mount coupled between the chassis and the energy storage system and having a shear pin. The shear pin is configured to fail during an impact event and allow the energy storage system to displace laterally relative to the chassis.

Abstract: An electrified vehicle includes a chassis having a longitudinal length of at least 20 feet and an energy storage system. The energy storage system includes an enclosure coupled to the chassis, a battery pack positioned within the enclosure, a power distribution system positioned within the enclosure, a first wiring harness positioned entirely internal to the enclosure where the first wiring harness electrically couples the battery pack to the power distribution system, and a second wiring harness. A first portion of the second wiring harness is positioned internal to the enclosure and a second portion of the second wiring harness is positioned external to the enclosure. A maximum external length of any cable of the second wiring harness external to the enclosure is less than 25% of the longitudinal length.

Abstract: A vehicle includes a chassis, an axle coupled to the chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, a battery, a driveline, and a controller. The driveline is configured to facilitate providing an auxiliary braking function to the axle. The driveline includes a motor coupled to the axle. The motor is coupled to the battery. The motor is configured to receive stored energy from the battery to drive the axle and provide the auxiliary braking function to the axle through a regenerative braking operation to charge the battery. The controller is configured to monitor a state of charge of the battery and prevent charging the battery through the regenerative braking operation while maintaining the auxiliary braking function of the driveline when the state of charge of the battery is approaching, at, or above a state of charge threshold.

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 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: A method for manufacturing an electrified fire fighting vehicle includes assembling a plurality of vehicle components into a vehicle module, assembling a high voltage module, and installing the high voltage module on the vehicle module so that the high voltage module is supported on a frame of the vehicle module. The high voltage module is assembled independently of the vehicle module.

Abstract: An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, an axle coupled to the chassis, a battery pack having a maximum capacity, a driveline coupled to the axle, and a controller. The driveline includes an electric motor coupled to the battery pack. The controller is configured to prevent charging the battery pack beyond a charge threshold to maintain an amount of storage capacity between the charge threshold and the maximum capacity to accommodate energy generated during one or more regenerative braking events and permit charging the battery pack beyond the charge threshold up to an overcharge threshold in response to receiving an override command or a certain mode selection. The overcharge threshold is greater than the charge threshold but less than the maximum capacity.

Abstract: An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis, an electric motor coupled to the chassis, and an energy storage system positioned between the cab and the body. The energy storage system includes a rack, a first battery pack, a second battery pack, and a power distribution system. The rack is coupled to and extends upward from the chassis. The rack defines an interior chamber having a first portion, a second portion, and a center portion. The first battery pack is positioned within the first portion. The second battery pack is positioned within the second portion. The power distribution system is positioned within the center portion between the first battery pack and the second battery pack. The power distribution system is electrically coupled to the first battery pack, the second battery pack, and the electric motor.

Abstract: An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, an aerial ladder, an energy storage system positioned between the cab and the body, and a ladder support. The energy storage system includes a rack and a battery pack. The rack is coupled to and extends upward from the chassis. The rack defines an interior chamber. The battery pack is positioned within the interior chamber. The ladder support is positioned above the rack. The ladder support is configured to engage with the aerial ladder when the aerial ladder is in a stowed orientation.

Abstract: An electrified fire fighting vehicle includes a chassis having a pair of frame rails, a cab, a body, an electric motor coupled to the chassis, and an energy storage system. The energy storage system includes a rack, a battery pack, a power distribution system, and a power cable. The rack is coupled to and extends upward from the chassis. The rack defines an interior chamber. The battery pack and the power distribution system are positioned within the interior chamber. The power cable runs from the power distribution system to the electric motor. The power cable is configured to provide alternating current power from the power distribution system to the electric motor. The power cable extends out of the rack proximate a lower edge thereof and between the pair of frame rails to the electric motor without crossing over or under the pair of frame rails of the frame.

Abstract: A traditional fire apparatus includes a frame, a front cabin, a rear section, an engine, and a transmission. A method for converting the traditional fire apparatus to an electrified fire apparatus. includes providing a retrofit kit including a frame extender, an electromagnetic device, and a high voltage enclosure including a battery pack; coupling the frame extender to the frame to extend a longitudinal length of the frame; replacing the transmission with the electromagnetic device, mounting the high voltage enclosure to the frame; and electrically coupling the high voltage enclosure to the electromagnetic device.

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.