US-20260124945-A1 - FIRE FIGHTING VEHICLE

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 front axle coupled to the chassis, a rear axle coupled to the chassis, an energy storage system coupled to the chassis and positioned rearward of the cab, a pump system positioned between the cab and the body, and an electromagnetic device. The electromagnetic device is electrically coupled to the energy storage system. The electromagnetic device is coupled to (i) the pump system and (ii) at least one of the front axle or the rear axle. The electromagnetic device is configured to receive electrical power from the energy storage system and provide a mechanical output to selectively drive (i) the pump system and (ii) the at least one of the front axle or the rear axle.

Inventors

• Eric Linsmeier
• David Archer
• Chad Smith
• Jon Morrow
• David Steinberger
• Neil Dekarske
• Joseph Dehaan
• Troy Scott
• Mitchel Nordahl

Assignees

• OSHKOSH CORPORATION

Dates

Publication Date

20260507

Application Date

20250808

Claims (20)

1. 1 . An electrified fire fighting vehicle comprising: a chassis; a cab coupled to the chassis; a body coupled to the chassis rearward of the cab; a front axle coupled to the chassis; a rear axle coupled to the chassis; an energy storage system coupled to the chassis and positioned rearward of the cab; a pump system positioned between the cab and the body, the pump system including: a pump house coupled to the chassis; and a pump disposed within the pump house; and an electromagnetic device electrically coupled to the energy storage system, the electromagnetic device coupled to (i) the pump and (ii) at least one of the front axle or the rear axle, wherein the electromagnetic device is configured to receive electrical power from the energy storage system and provide a mechanical output to selectively drive (i) the pump and (ii) the at least one of the front axle or the rear axle.
2. 2 . The electrified fire fighting vehicle of claim 1 , further comprising a fluid tank supported by the chassis, the fluid tank configured to store at least one of water or foam.
3. 3 . The electrified fire fighting vehicle of claim 1 , wherein the electromagnetic device is a first electromagnetic device, further comprising: a second electromagnetic device; and an engine coupled to the second electromagnetic device, wherein the engine is configured to drive the second electromagnetic device to generate electricity.
4. 4 . The electrified fire fighting vehicle of claim 3 , wherein the second electromagnetic device is electrically coupled to the first electromagnetic device, and wherein the second electromagnetic device is configured to provide the electricity generated thereby to the first electromagnetic device.
5. 5 . The electrified fire fighting vehicle of claim 3 , wherein the second electromagnetic device is electrically coupled to the energy storage system, and wherein the second electromagnetic device is configured to provide the electricity generated thereby to the energy storage system.
6. 6 . The electrified fire fighting vehicle of claim 3 , wherein the first electromagnetic device, the engine, and the second electromagnetic device are operable simultaneously.
7. 7 . The electrified fire fighting vehicle of claim 3 , wherein the energy storage system includes an inverter and a plurality of batteries, further comprising a cooling system configured to cool at least the inverter, the plurality of batteries, and at least one of the first electromagnetic device and the second electromagnetic device.
8. 8 . The electrified fire fighting vehicle of claim 1 , further comprising one or more sensors configured to acquire data regarding the energy storage system, the data including at least one of voltage, current, state-of-charge, incoming power, or power being output by the energy storage system.
9. 9 . The electrified fire fighting vehicle of claim 1 , wherein the electromagnetic device is configured to provide regenerative braking capabilities to generate electricity during braking events.
10. 10 . The electrified fire fighting vehicle of claim 9 , wherein the electromagnetic device is configured to provide the electricity generated thereby to the energy storage system.
11. 11 . The electrified fire fighting vehicle of claim 9 , wherein the electromagnetic device is configured to provide the electricity generated thereby to an electrical component of the electrified fire fighting vehicle other than the energy storage system.
12. 12 . The electrified fire fighting vehicle of claim 1 , wherein the electrified fire fighting vehicle looks and is operated substantially the same as an internal combustion engine only driven North American fire fighting vehicle.
13. 13 . The electrified fire fighting vehicle of claim 1 , wherein the electromagnetic device includes a first motor and a second motor.
14. 14 . An electrified fire fighting vehicle comprising: a chassis; a cab coupled to the chassis; a body coupled to the chassis rearward of the cab; 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 pump system positioned between the cab and the body, the pump system including: a pump house coupled to the chassis; and a pump disposed within the pump house and coupled to the water tank; a first electromagnetic device electrically coupled to the energy storage system, the first electromagnetic device coupled to (i) the pump and (ii) at least one of the front axle or the rear axle; a second electromagnetic device; and an engine coupled to the second electromagnetic device, wherein the engine is configured to drive the second electromagnetic device to generate electricity.
15. 15 . The electrified fire fighting vehicle of claim 14 , wherein the second electromagnetic device is electrically coupled to the first electromagnetic device, and wherein the second electromagnetic device is configured to provide the electricity generated thereby to the first electromagnetic device.
16. 16 . The electrified fire fighting vehicle of claim 14 , wherein the second electromagnetic device is electrically coupled to the energy storage system, and wherein the second electromagnetic device is configured to provide the electricity generated thereby to the energy storage system.
17. 17 . The electrified fire fighting vehicle of claim 14 , wherein the first electromagnetic device, the engine, and the second electromagnetic device are operable simultaneously.
18. 18 . The electrified fire fighting vehicle of claim 14 , wherein the energy storage system includes an inverter and a plurality of batteries, further comprising a cooling system configured to cool at least the inverter, the plurality of batteries, the first electromagnetic device, and the second electromagnetic device.
19. 19 . The electrified fire fighting vehicle of claim 14 , wherein the electrified fire fighting vehicle looks and is operated substantially the same as an internal combustion engine only driven North American fire fighting vehicle.
20. 20 . An electrified fire fighting vehicle comprising: 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 water tank supported by the chassis; an energy storage system coupled to the chassis and positioned rearward of the cab, the energy storage system including an inverter and a plurality of batteries; a pump system positioned between the cab and the body, the pump system including: a pump house coupled to the chassis; and a pump disposed within the pump house and coupled to the water tank; one or more electric motors electrically coupled to the energy storage system, the one or more electric motors coupled to the pump and the axle; and a cooling system configured to cool at least the inverter, the plurality of batteries, and the one or more electric motors.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATIONS This application is a continuation of U.S. patent application Ser. No. 17/729,815, filed Apr. 26, 2022, which claims the benefit of and priority to (i) U.S. Provisional Patent Application No. 63/184,415, filed May 5, 2021, (ii) U.S. Provisional Patent Application No. 63/184,418, filed May 5, 2021, (iii) U.S. Provisional Patent Application No. 63/184,516, filed May 5, 2021, (iv) U.S. Provisional Patent Application No. 63/184,518, filed May 5, 2021, and (v) U.S. Provisional Patent Application No. 63/250,676, filed Sep. 30, 2021, all of which are incorporated herein by reference in their entireties. BACKGROUND A fire fighting vehicle is a specialized vehicle designed to respond to fire scenes that can include various components to assist fire fighters with battling and extinguishing fires. Such components can include a pumping system, an onboard water tank, and an aerial ladder. Fire fighting vehicles traditionally include an internal combustion engine that provides power to both drive the vehicle and well as to drive the various components of the vehicle to facilitate the operation thereof. SUMMARY One embodiment relates to an electrified fire fighting vehicle. The electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, a front axle coupled to the chassis, a rear axle coupled to the chassis, an energy storage system coupled to the chassis and positioned rearward of the cab, a pump system positioned between the cab and the body, and an electromagnetic device. The pump system includes a pump house coupled to the chassis and a pump disposed within the pump house. The electromagnetic device is electrically coupled to the energy storage system. The electromagnetic device is coupled to (i) the pump and (ii) at least one of the front axle or the rear axle. The electromagnetic device is configured to receive electrical power from the energy storage system and provide a mechanical output to selectively drive (i) the pump and (ii) the at least one of the front axle or the rear axle. Another embodiment relates to an electrified fire fighting vehicle. The electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, 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 pump system positioned between the cab and the body, a first electromagnetic device, a second electromagnetic device, and an engine. The pump system includes a pump house coupled to the chassis and a pump disposed within the pump house and coupled to the water tank. The first electromagnetic device is electrically coupled to the energy storage system. The first electromagnetic device is coupled to (i) the pump and (ii) at least one of the front axle or the rear axle. The engine is coupled to the second electromagnetic device. The engine is configured to drive the second electromagnetic device to generate electricity. Still another embodiment relates to an electrified fire fighting vehicle. The electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis rearward of the cab, 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 pump system positioned between the cab and the body, and an electromagnetic device. The pump system includes a pump house coupled to the chassis and a pump disposed within the pump house and coupled to the water tank. The electromagnetic device is electrically coupled to the energy storage system. The electromagnetic device is coupled to (i) the pump and (ii) at least one of the front axle or the rear axle. The electromagnetic device includes a first motor and a second motor. The electrified fire fighting vehicle looks and is operated substantially the same as an internal combustion engine only driven North American fire fighting vehicle. This summary is illustrative only and is not intended to be in any way limiting. Other aspects, inventive features, and advantages of the devices or processes described herein will become apparent in the detailed description set forth herein, taken in conjunction with the accompanying figures, wherein like reference numerals refer to like elements. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front, left perspective view of a fire fighting vehicle, according to an exemplary embodiment. FIG. 2 is a front, right perspective view of the fire fighting vehicle of FIG. 1, according to an exemplary embodiment. FIG. 3 is a front view of the fire fighting vehicle of FIG. 1, according to an exemplary embodiment. FIG. 4 is a left side view of the fire fighting vehicle of FIG. 1,