Operational modes for a fire fighting vehicle
AssigneeOshkosh Corporation
InventorsEric Linsmeier, David Archer, Chad Smith, Jon Morrow
Life of this patent
Estimating the term…
Abstract
An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis, a pump system, and a driveline. The driveline includes a front axle coupled to the chassis, a rear axle coupled to the chassis, an energy storage system, an engine coupled to the chassis, and an electromechanical device coupled to the chassis, the engine, and at least one of the front axle or the rear axle. The driveline is a dual drive driveline such that, during any and all modes of operation of the driveline, the electromechanical device is incapable of or prevented from charging the energy storage system at any time when driven by the engine.
Claims20
An electrified fire fighting vehicle comprising:
- a chassis;
- a cab coupled to the chassis;
- a body coupled to the chassis;
- a pump system;
- and
- a driveline including:
- a front axle coupled to the chassis;
- a rear axle coupled to the chassis;
- an energy storage system;
- an engine coupled to the chassis;
- and
- an electromechanical device coupled to the chassis, the engine, and at least one of the front axle or the rear axle;
- wherein the driveline is a dual drive driveline such that, during any and all modes of operation of the driveline, the electromechanical device is incapable of or prevented from charging the energy storage system at any time when driven by the engine.
An electrified fire fighting vehicle comprising:
- a chassis;
- a cab coupled to the chassis;
- a body coupled to the chassis;
- a pump system;
- and
- a driveline including:
- a front axle coupled to the chassis;
- a rear axle coupled to the chassis;
- an energy storage system;
- an engine coupled to the chassis, the engine including a first interface;
- a clutched accessory drive including:
- a clutch coupled to the first interface of the engine;
- and
- an accessory drive coupled to the clutch, the accessory drive including a plurality of accessories;
- and
- an electromechanical device coupled to the chassis and the energy storage system, the electromechanical device including (a) a second interface coupled to the accessory drive such that the clutched accessory drive is positioned between the engine and the electromechanical device and (b) a third interface coupled to at least one of the front axle or the rear axle;
- wherein the driveline is operable in a first mode where (a) the engine is off, (b) the clutch is disengaged to decouple the engine from the accessory drive and the electromechanical device, and (c) the electromechanical device uses stored energy in the energy storage system to drive (i) the at least one of the front axle or the rear axle via the third interface and (ii) the accessory drive via the second interface;
- and
- wherein the driveline is operable in a second mode where (a) the clutch is engaged, (b) the engine provides a mechanical input to the clutch via the first interface, which thereby drives the accessory drive and the second interface of the electromechanical device, (c) the electromechanical device uses the mechanical input received through the clutched accessory drive to drive the at least one of the front axle or the rear axle, and (d) the electromechanical device does not generate electricity to charge the energy storage system.
An electrified fire fighting vehicle comprising:
- a chassis;
- a cab coupled to the chassis;
- a body coupled to the chassis;
- a pump system;
- and
- a driveline including:
- a front axle coupled to the chassis;
- a rear axle coupled to the chassis;
- an energy storage system;
- an engine coupled to the chassis, the engine including a first interface;
- a clutched accessory drive including:
- a clutch coupled to the first interface of the engine;
- and
- an accessory drive coupled to the clutch, the accessory drive including a plurality of accessories;
- and
- an electromechanical device coupled to the chassis and the energy storage system, the electromechanical device including (a) a second interface coupled to the accessory drive such that the clutched accessory drive is positioned between the engine and the electromechanical device and (b) a third interface coupled to at least one of the front axle or the rear axle;
- wherein the driveline is a dual drive driveline such that, during any and all modes of operation of the driveline, the electromechanical device does not charge the energy storage system at any time when driven by the engine.
Dependencies are inferred from the claim text.