An electric powertrain includes a first electric motor that has an uninterrupted connection with a drive shaft of a vehicle. The electric powertrain further includes a second electric motor that has an interruptible connection with the drive shaft. In one form, this interruptible connection includes a clutch. The electric powertrain further includes a first gear train in the form of a first planetary gear and a second gear train in the form of a second planetary gear. To provide a compact configuration, the first electric motor and second electric motor are arranged in a longitudinal orientation with the drive shaft.

An energy storage system for a military vehicle includes a battery housing defining a lower end and an upper end, a battery disposed within the battery housing, a bracket coupled to the battery housing at or proximate the upper end thereof, a lower support supporting the lower end of the battery housing, and an upper connector extending from the bracket. The upper connector is configured to engage a rear wall of a cab of the military vehicle.

An energy storage system for a military vehicle includes a battery housing defining a lower end and an upper end, a battery disposed within the battery housing, a bracket coupled to the battery housing at or proximate the upper end thereof, a lower support supporting the lower end of the battery housing, and an upper connector extending from the bracket. The upper connector is configured to engage a rear wall of a cab of the military vehicle.

A control system for operating a military vehicle according to different modes includes processing circuitry that receives a user input indicating a selected mode of the different modes, and operates a driveline and a front end accessory drive (FEAD) of the military vehicle according to the selected mode. The driveline of the military vehicle includes an engine and an integrated motor generator (IMG) and the FEAD includes multiple accessories and an electric motor-generator. The modes include an engine mode and an electric mode. In the engine mode, the engine drives the FEAD and drives tractive elements of the military vehicle through the IMG for transportation. In the electric mode, the engine is shut off to reduce a sound output of the military vehicle and the IMG drives the tractive elements of the military vehicle for transportation and the electric motor-generator drives the FEAD.

A method for controlling a hybrid electric vehicle includes: connecting a first motor directly connected to an engine to a second motor directly connected to a transmission input terminal through a dual mass flywheel; determining a target angular acceleration of the first motor according to a gear shifting progress rate so that an angular acceleration of the first motor follows a target angular acceleration of the transmission input terminal when a gearshift is performed in the transmission; and controlling a torque of the first motor based on the target angular acceleration of the first motor.

A military vehicle includes a cab having a rear wall, a bed positioned behind the cab, and an energy storage system. The energy storage system includes a lower support coupled to the bed, a battery supported by the lower support, a bracket coupled to the batter, and an isolator mount coupling the bracket to the rear wall. The isolator mount is configured to provide front-to-back vibration isolation of the battery relative to the rear wall.

A military vehicle includes a chassis, a front axle, a rear axle, an energy storage system, an engine, a transmission, and a motor. The chassis includes 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. The passenger capsule defines a tunnel extending longitudinally along a bottom thereof. The front module includes a front subframe assembly. The rear module includes a rear subframe assembly. The front axle is coupled to the front subframe assembly. The rear axle is coupled to the rear subframe assembly. The engine is supported by the front subframe assembly. The transmission is positioned within the tunnel and coupled to the front axle and/or the rear axle. The motor is at least partially positioned within the tunnel and positioned between the engine and the transmission.

A military vehicle includes an engine, an energy storage system, an accessory drive coupled to the engine and including an air compressor and a first motor, a second motor coupled to an axle, and a clutch positioned between the engine and the second motor. The clutch is spring-biased into engagement with the engine and pneumatically disengaged by an air supply selectively provided thereto based on operation of the air compressor. In an engine mode, (i) the clutch does not receive the air supply such that the engine is coupled to the second motor and (ii) the engine drives (a) the accessory drive and (b) the axle through the second motor. In the electric mode, (i) the first motor drives the air compressor to compress air to facilitate supplying the air supply to the clutch to disengage the clutch and decouple the engine from the second motor and (ii) the second motor drives the axle.

A military vehicle includes a cab having a rear wall, a bed positioned behind the cab, and an energy storage system. The energy storage system includes a lower support coupled to the bed, a battery supported by the lower support, a bracket coupled to the batter, and an isolator mount coupling the bracket to the rear wall. The isolator mount is configured to provide front-to-back vibration isolation of the battery relative to the rear wall.

A driveline including a motor/generator configured to receive power from an engine and output power to a tractive element, an accessory drive configured to receive power from the engine and output power to an accessory, and an energy storage system including a battery, the energy storage system electrically coupled to the motor/generator and the accessory drive. The driveline is operable in a charge mode with the motor/generator and the accessory drive providing electrical power to the energy storage system. The driveline is operable in a silent mobility mode with the energy storage system providing electrical power to the motor/generator and the accessory drive to operate the military vehicle.