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Warrenville, IL, United States

Patent
Navistar | Date: 2013-01-29

A system and method for improving the engine braking capacity for a vehicle is disclosed. The system and method include providing a compression release braking system, providing an energy drawing component for increasing power draw on the vehicle engine, and, increasing the engine braking capability by synchronizing operation of the energy drawing component with operation of the compression release braking system. The energy drawing component includes a hydraulic fan, which is part of the cooling system of the vehicle. Increasing the speed of the fan draws energy from the engine, which in turn, increases the braking capability of the engine.


Patent
Navistar | Date: 2013-01-29

An auxiliary electrical power system for a motor vehicle is described. Generally speaking, the system includes a hydraulic pump, a hydraulic motor and an auxiliary alternator. The pump is coupled to and driven by the vehicle engine mounted within the engine compartment of the vehicle, and the pump operates to pump fluid at a pressure. The hydraulic motor is operatively coupled to the hydraulic pump and turns a gear coupled to the motor. The alternator has a gear coupled by a belt to the gear of the hydraulic motor. the auxiliary alternator is positioned outside the vehicle engine compartment to conserve space for other critical engine components. Further, the hydraulic pump may be coupled to the engine power-take-off shaft. The motor gear to alternator gear ratio is about 1:4 to allow charging even at low engine idle.


Patent
Navistar | Date: 2012-09-07

A system and method for locking and unlocking separate access doors of a vehicle using a single movement, is disclosed. The locking system includes a sliding member, a primary rotating lever coupled to the sliding member, a secondary rotating lever operably connected to the primary rotating lever through a plurality of linkages, and at least two pivotal latches positioned at separate access areas of the vehicle and operably connected to the linkages, wherein a single movement of the sliding member rotates primary and secondary rotating levers to pivot the latches simultaneously between an engaged position and a disengaged position at the separate access areas.


Patent
Navistar | Date: 2012-09-10

A modular vehicle frame structure assembly, which combines a monocoque cabin structure with separately attachable space frame structures, is disclosed. The modular vehicle body assembly includes a monocoque cabin structure, a front frame section and a rear frame section, wherein the front and rear frame sections secure separately to the respective front and rear sections of the cabin structure and extend longitudinally therefrom forming a modular vehicle body with the cabin structure. The modular vehicle frame assembly is useful in the construction of light weight, low-profile military vehicles.


Patent
Navistar | Date: 2011-04-06

A truck for towing a trailer includes a vehicle frame spine, a pair of suspension assemblies extending from either side of the vehicle frame spine and each supports a drive assembly at an end distal to the vehicle frame spine. Extensible struts are positioned between the vehicle frame spine and the drive assemblies allowing selection of vehicle drive height from a driving surface. A fifth wheel assembly is supported from the vehicle frame spine located above the drive assemblies. The fifth wheel assembly includes a fifth wheel and a fifth wheel lift which varies spacing of the fifth wheel from the vehicle frame spine. Control system selects strut extension based on a selected vehicle drive height and operates the lift assembly to counteract changes in vehicle drive height and maintain a constant fifth wheel drive height relative to the driving surface.

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