# US 2023/0057525 A1 · Electrified military vehicle

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- Number: US 2023/0057525 A1
- Document ID: US20230057525A1
- Status: Published application
- Kind: A1
- Application number: 17/948,931
- Filed: 2022-09-20
- Published: 2023-02-23
- Earliest claimed: 2021-08-13
- Assignees: Oshkosh Defense, LLC
- Applicants: Oshkosh Defense, LLC
- Inventors: Chad Smith; Dave Marek; Neil Dekarske; Mike Bolton; Ryan Crabtree; Joseph Dehaan; Rachell Harsh; Michael Koenigs; Shawn Naglik; Mitchel Nordahl; Evan Schertz; Mikel Ullman; Jessica Szymanski; Bradon Zeitler; Deepak Shukla; Ed Trinklein; Tim Voight; Mike Yanacek; Matt Mathison; Nader Nasr
- Web page: https://patentgrep.com/patent/US20230057525A1

## CPC

- B60K 6/40: characterised by the assembly or relative disposition of components
- F41H 7/044: {Hull or cab construction other than floors or base plates for increased land mine protection (mounting of armoured plates F41H5/013)}
- B60K 6/28: characterised by the electric energy storing means, e.g. batteries or capacitors
- B60K 6/387: Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
- B60K 6/48: Parallel type
- B60K 6/52: Driving a plurality of drive axles, e.g. four-wheel drive
- B60K 6/547: the transmission being a stepped gearing
- B60K 17/00: Arrangement or mounting of transmissions in vehicles
- B60K 25/02: directly from an engine shaft
- B60W 20/10: Controlling the power contribution of each of the prime movers to meet required power demand
- B60W 20/40: Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers {(power-up or power-down of the driveline B60W30/192)}
- B62D 63/02: Motor vehicles
- B62D 63/04: Component parts or accessories
- B60K 1/00: Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00)
- B60K 1/04: of the electric storage means for propulsion
- B60K 17/02: characterised by arrangement, location, or kind of clutch
- B60K 17/04: characterised by arrangement, location or kind of gearing
- B60K 17/06: of change-speed gearing (B60K17/10 - B60K17/16 take precedence)
- B60K 17/08: of mechanical type
- B60K 17/12: of electric gearing
- B60K 17/28: characterised by arrangement, location, or type of power take-off
- B60K 2001/001: {one motor mounted on a propulsion axle for rotating right and left wheels of this axle}
- B60K 2006/4825: {Electric machine connected or connectable to gearbox input shaft}
- B60K 2025/022: {by a mechanical transmission}
- B60W 2300/26: Military
- B60W 2510/244: Charge state
- B60Y 2200/92: Hybrid vehicles
- F41H 7/02: Land vehicles with enclosing armour, e.g. tanks (endless-track vehicles, steering thereof B62D {; vehicles for placing portable or sectional bridges E01D15/127; vehicles carrying floating bridges E01D15/22})
- Y02T 10/62: Hybrid vehicles
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A military vehicle include a driveline. The driveline includes a first driver including an engine, an energy storage system, an accessory drive coupled to the engine, a transmission coupled to at least one of the front axle or the rear axle, and a second driver coupled to the engine and the transmission. The accessory drive includes a plurality of accessories and a first motor. The first motor is electrically coupled to the energy storage system. The first motor is positioned to facilitate selectively driving the plurality of accessories. The second driver includes a second motor electrically coupled to the energy storage system.

## Claims

### Claim 1

A military vehicle comprising:
a driveline including:
a first driver including an engine;
an energy storage system;
an accessory drive coupled to the engine, the accessory drive including a plurality of accessories and a first motor, the first motor electrically coupled to the energy storage system and positioned to facilitate selectively driving the plurality of accessories;
a transmission; and
a second driver coupled to the engine and the transmission, the second driver including a second motor electrically coupled to the energy storage system.

### Claim 2 (depends on 1)

The military vehicle of claim 1, further comprising a chassis including a passenger capsule, a front module coupled to a front end of the passenger capsule, and a rear module coupled to a rear end of the passenger capsule, and wherein the engine is supported by the front module and the energy storage system is supported by the rear module.

### Claim 3 (depends on 2)

The military vehicle of claim 2, wherein the passenger capsule defines a tunnel extending longitudinally along a bottom thereof, wherein the transmission is positioned within the tunnel and the second motor is at least partially positioned within the tunnel, and wherein electrical wiring extends from the energy storage system through the tunnel to the first motor and the second motor.

### Claim 4 (depends on 2)

The military vehicle of claim 2, wherein the passenger capsule defines a rear wall, wherein the rear module includes a first rear wheel well, a second rear wheel well, and a bed, and wherein the energy storage system includes a battery (i) positioned between the first rear wheel well and the second rear wheel well and (ii) supported by the bed and the rear wall.

### Claim 5 (depends on 4)

The military vehicle of claim 4, wherein the energy storage system includes:
a battery storage housing supporting the battery;
a lower support coupled to the bed between the first rear wheel well and the second rear wheel well, the lower support including a plurality of feet elevating a support surface of the lower support above the bed;
a lower mount coupled to the support surface of the lower support, the lower mount comprising a vibration attenuating material, wherein the battery storage housing is coupled to the lower mount;
a bracket coupled to an upper portion of the battery storage housing; and
an upper mount extending between the bracket and the rear wall of the passenger capsule.

### Claim 6 (depends on 4)

The military vehicle of claim 4, wherein:
the rear module includes:
a first stowage compartment positioned above the first rear wheel well; and
a second stowage compartment positioned above the second rear wheel well; and
the energy storage system includes:
an inverter disposed in the first stowage compartment;
a DC/DC converter disposed in the second stowage compartment; and
a charging port positioned at a rear of one of the first stowage compartment or the second stowage compartment.

### Claim 7 (depends on 1)

The military vehicle of claim 1, wherein the driveline is operable in an electric-only mode where (i) the engine is off, (ii) the first motor receives power from the energy storage system to drive the plurality of accessories of the accessory drive, and (iii) the second motor receives power from the energy storage system to drive the transmission.

### Claim 8 (depends on 7)

The military vehicle of claim 7, further comprising a clutch positioned to selectively couple the engine to the second motor, wherein the clutch is spring biased into engagement with the engine, and wherein the plurality of accessories include an air compressor that is driven by the first motor during the electric-only mode to compress air to facilitate supplying an air supply to the clutch to disengage the clutch and decouple the engine from the second motor.

### Claim 9 (depends on 7)

The military vehicle of claim 7, wherein the driveline is operable in a charge mode where both (i) the first motor is configured to function as a first generator to generate electricity as the accessory drive is driven by the engine and (ii) the second motor is configured to function as a second generator to generate electricity as the second motor is driven by the engine.

### Claim 10 (depends on 9)

The military vehicle of claim 9, wherein:
the energy storage system is configured to power the first motor in the electric-only mode where the first motor is capable of driving the military vehicle at a speed of at least 25 miles per hour for a first period of time; and
the energy storage system is configured to be recharged by the first motor and the second motor in the charge mode in a second period of time that is less than the first period of time.

### Claim 11 (depends on 7)

The military vehicle of claim 7, wherein the driveline is operable in an engine mode where the engine drives (i) the accessory drive and (ii) the transmission through the second motor, further comprising a controller configured to switch the driveline from the electric-only mode to the engine mode in response to a state-of-charge of the energy storage system falling below a charge threshold and without requiring operator approval.

### Claim 12 (depends on 11)

The military vehicle of claim 11, wherein the driveline is operable in an ultra-silent mode where (i) the engine is off, (ii) the second motor receives power from the energy storage system to drive the transmission and (iii) operation of the accessory drive is at least partially limited.

### Claim 13 (depends on 12)

The military vehicle of claim 12, wherein the controller is configured to prevent switching from the ultra-silent mode to the engine mode in response to the state-of-charge of the energy storage system falling below the charge threshold until operator approval is received.

### Claim 14 (depends on 12)

The military vehicle of claim 12, wherein the plurality of accessories include a fan, wherein functionality of the fan is limited during the ultra-silent mode, and wherein the controller is configured to prevent activation of the fan until operator approval is received even if a temperature threshold for activation of the fan has been achieved.

### Claim 15 (depends on 1)

The military vehicle of claim 1, wherein:
the second driver includes:
a housing including an engine mount coupled to the engine and a backing plate coupled to the transmission, the second motor disposed within the housing and coupled to an input of the transmission; and
a clutch disposed within the housing and coupled to the second motor, the clutch configured to selectively couple an output of the engine to the second motor, the clutch is spring-biased into engagement with the engine and pneumatically disengaged by an air supply selectively provided thereto;
when the clutch is disengaged, the second motor is configured to receive power from the energy storage system and provide a mechanical output to the input of the transmission to drive the military vehicle; and
when the clutch is engaged, the second motor is configured to (i) selectively provide a mechanical output to the transmission to drive the military vehicle based on a mechanical input received from the engine and (ii) selectively generate electricity based on the mechanical input.

### Claim 16

A military vehicle comprising:
a passenger capsule defining a tunnel extending longitudinally along a bottom thereof;
a driveline including:
a first driver including an engine;
an energy storage system;
an accessory drive coupled to the engine, the accessory drive including a plurality of accessories and a first motor, the first motor electrically coupled to the energy storage system and positioned to facilitate selectively driving the plurality of accessories;
a transmission positioned within the tunnel; and
a second driver at least partially positioned within the tunnel, the second driver coupled to the engine and the transmission, the second driver including a second motor electrically coupled to the energy storage system.

### Claim 17 (depends on 16)

The military vehicle of claim 16, further comprising a rear module coupled to a rear end of the passenger capsule, wherein the energy storage system is supported by the rear module.

### Claim 18 (depends on 17)

The military vehicle of claim 17, wherein electrical wiring extends from the energy storage system through the tunnel to the first motor and the second motor.

### Claim 19

A military vehicle comprising:
a chassis;
a front axle coupled to the chassis;
a rear axle coupled to the chassis; and
a driveline including:
a first driver including an engine;
an energy storage system;
an accessory drive including a plurality of accessories and a first motor;
a transmission coupled to at least one of the front axle or the rear axle; and
a second driver coupled to the engine and the transmission, the second driver including a second motor;
wherein the driveline is operable in an electric-only mode where (i) the engine is off, (ii) the first motor receives power from the energy storage system to drive the plurality of accessories of the accessory drive, and (iii) the second motor receives power from the energy storage system to drive the transmission and, thereby, the at least one of the front axle or the rear axle.

### Claim 20 (depends on 19)

The military vehicle of claim 19, wherein the first motor is coupled to the engine, and wherein the driveline is operable in a charge mode where both (i) the first motor is configured to function as a first generator to generate electricity as the first motor is driven by the engine and (ii) the second motor is configured to function as a second generator to generate electricity as the second motor is driven by the engine.