An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis, 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 water pump supported by the chassis, and an electromagnetic device electrically coupled to the energy storage system. The electromagnetic device is coupled to the water pump and at least one of the front axle or the rear axle. The electromagnetic device is configured to receive stored energy from the energy storage system and provide a mechanical output to selectively drive the water pump and the at least one of the front axle or the rear axle.

The present invention provides a power generation device that can not only reduce the generation of vibration but also increase thermal efficiency. A power generation device (10A) includes: an engine (1) in which a right crankshaft (31) and a left crankshaft (32) rotate in opposite directions to each other; a right flywheel (41) and left flywheel (42) as a primary inertia body; and a power generation motor (2) as a secondary inertia body, a total inertia moment in a first rotation direction and a total inertia moment in a second rotation direction being balanced with each other by not less than 50%.

A method to detect whether combustion is taking place in an internal combustion engine of a hybrid vehicle during operation of the hybrid vehicle, whereby a decoupler is provided between the internal combustion engine and an electric machine that serves to power the hybrid vehicle, comprising opening the decoupler between the internal combustion engine and the electric machine, receiving a speed signal when the decoupler is open, said signal indicating a rotational speed of the internal combustion engine when the decoupler is open, and determining, on the basis of the speed signal when the decoupler is open, whether combustion is taking place in the internal combustion engine. The present invention also relates to a control device to carry out the method according to the invention.

It is determined whether chargeable and dischargeable electric power of a battery which is a power storage device are limited. When it is determined that the chargeable and dischargeable electric power of the battery is limited, an electric power balance target value of the battery during gear shifting control in a stepped gear shifting unit which is a mechanical gear shifting mechanism is calculated. A smaller value is calculated as a change rate limit value when the chargeable and dischargeable electric power is small than when the chargeable and dischargeable electric power is great, and the calculated change rate limit value is used to perform gear shifting control in the stepped gear shifting unit.

A rotor assembly for a hybrid module includes a rotor carrier, a rotor segment, an end ring, a first spacer, a second spacer, and a compressed spring. The rotor carrier includes a first outer cylindrical surface and a radial surface, and the rotor segment is installed on the first outer cylindrical surface. The end ring is fixed to the rotor carrier and arranged for fixing to an engine flexplate. The first spacer is disposed axially between the rotor segment and the radial surface, and the second spacer is disposed axially between the rotor segment and the end ring. The compressed spring is disposed axially between the end ring and the second spacer to press the first spacer, the second spacer, and the rotor segment against the radial surface for frictional torque transmission between the rotor segment and the rotor carrier.

A rotor assembly for a hybrid module includes a rotor carrier, a rotor segment, an end ring, a first spacer, a second spacer, and a compressed spring. The rotor carrier includes a first outer cylindrical surface and a radial surface, and the rotor segment is installed on the first outer cylindrical surface. The end ring is fixed to the rotor carrier and arranged for fixing to an engine flexplate. The first spacer is disposed axially between the rotor segment and the radial surface, and the second spacer is disposed axially between the rotor segment and the end ring. The compressed spring is disposed axially between the end ring and the second spacer to press the first spacer, the second spacer, and the rotor segment against the radial surface for frictional torque transmission between the rotor segment and the rotor carrier.

A system and method for power management of hybrid electric vehicles is provided. In some implementations, a plug-in series hybrid electric vehicle may include an engine, a motor/generator (MG), a traction motor, an energy storage device, and a controller. The controller is coupled to the engine and the MG to control operation of the engine and the MG such that a state-of-charge (SOC) of the energy storage device tracks a dynamic reference SOC profile during a trip and an average engine power (AEP) is maintained above a threshold. In some instances, maintaining AEP above a threshold supports emission control of the vehicle.

A system and method for power management of hybrid electric vehicles is provided. In some implementations, a plug-in series hybrid electric vehicle may include an engine, a motor/generator (MG), a traction motor, an energy storage device, and a controller. The controller is coupled to the engine and the MG to control operation of the engine and the MG such that a state-of-charge (SOC) of the energy storage device tracks a dynamic reference SOC profile during a trip and an average engine power (AEP) is maintained above a threshold. In some instances, maintaining AEP above a threshold supports emission control of the vehicle.

A hybrid module includes a housing with a bulkhead wall, a K0 shaft, a rotor assembly, a rotor carrier and a first bearing. The K0 shaft is arranged for driving connection with a crankshaft. The rotor assembly has an electric motor rotor and a thrust surface for a K0 clutch. The K0 clutch is arranged to drivingly connect the rotor assembly to the K0 shaft. The rotor carrier is fixed to the rotor assembly and the first bearing is arranged to rotationally separate the bulkhead wall and the rotor carrier. In an example embodiment, the first bearing is a deep groove ball bearing. In an example embodiment, the hybrid module includes a seal installed in the bulkhead wall and contacting the K0 shaft. In an example embodiment, the hybrid module includes a bushing installed on the K0 shaft and arranged for contacting an inner bore of the crankshaft.

A hybrid module includes a housing with a bulkhead wall, a K0 shaft, a rotor assembly, a rotor carrier and a first bearing. The K0 shaft is arranged for driving connection with a crankshaft. The rotor assembly has an electric motor rotor and a thrust surface for a K0 clutch. The K0 clutch is arranged to drivingly connect the rotor assembly to the K0 shaft. The rotor carrier is fixed to the rotor assembly and the first bearing is arranged to rotationally separate the bulkhead wall and the rotor carrier. In an example embodiment, the first bearing is a deep groove ball bearing. In an example embodiment, the hybrid module includes a seal installed in the bulkhead wall and contacting the K0 shaft. In an example embodiment, the hybrid module includes a bushing installed on the K0 shaft and arranged for contacting an inner bore of the crankshaft.