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.

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.

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.

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.

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.

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.

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.

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.

A braking control method for a vehicle is provided. The vehicle distributes and transmits a driving force of a vehicle driving source to front and rear wheels based on a power distribution rate. The method includes determining a total braking force based on a brake signal corresponding to brake pedal manipulation, calculating a front and rear wheel braking force satisfying the total braking force, and calculating a regenerative and frictional braking force satisfying the total braking force. The method further includes determining a power distribution rate range to the front and rear wheels during braking using the calculated front and rear wheel braking force and regenerative braking force, determining a power distribution rate to the front and rear wheels based on a vehicle driving condition, within the determined power distribution rate range; and adjusting distribution of the power to the front and rear wheels at the power distribution rate.

A method for controlling regenerative braking of a vehicle is provided, in which a driving area of a motor is decided when shifting gears during regenerative braking, and an amount of regenerative braking is determined based on the decided result. The method includes a first process of deciding whether motor torque is in a constant power mode, a second process of deciding whether the motor torque is in a constant torque mode, and a third process of deciding whether the mode of the motor torque is converted into the constant torque mode from the constant power mode.