Abstract: A radiator fan shroud (100) is disclosed that is adapted to be attached to a vehicle radiator (96)—for example, the radiator of a Class 8 truck. The fan shroud includes a peripheral cover portion (112) and a ring assembly (102) that encloses the blades of the engine-driven radiator fan (88). The ring assembly may be formed integrally with the peripheral cover portion or may include a separable ring extension (120). The ring assembly includes a plurality of ports (104) defined by vanes (106) at the rearward portion of the ring assembly. The ports are selectively positioned to manage the airflow in the engine compartment, directing the airflow towards selected locations. The vanes may be fluted. The fan shroud may be formed from two or more pieces that cooperatively form the fan shroud, to facilitate installation and maintenance of the fan shroud.

Abstract: A system for supplying electrical power for use when the vehicle engine is shut down and configurations of long-haul trucks employing the system are disclosed. The power system is a battery bank contained within an insulated enclosure. The batteries are heated when the truck is in operation with the insulated enclosure maintaining battery temperature sufficient to provide high battery power capacity for an extended period after the vehicle is shut down. A large capacitor, rather than the batteries, provides current for starting the vehicle engine. A dc-to-dc converter controls the fully charged capacitor voltage and provides capacitor charging current even when the batteries have been discharged to a low-voltage condition. The disclosed long-haul truck configurations include a storage cooler that employs a phase-change medium that is thermally charged to a low temperature while the truck is in operation and is used to provide sleeper unit cooling air.

Abstract: A planetary gearbox with transmitted torque sensor comprises a gear housing, first and second coupling members, sensing assembly, and planetary gears. The coupling members have axial faces disposed in a spaced apart, opposing relationship. Formed therein are a plurality of conical seats arranged in opposing pairs, each pair receiving a ball therebetween. The sensing assembly is positioned between the housing and at least one of the coupling members, urging the members toward one another and detecting relative axial movement. The planetary gears transmit torque from the second coupling member to a second gearbox shaft. The balls roll partway up the conical seats when transmitting torque between the coupling members, thereby causing the members to move axially away from one another a distance proportional to the torque transmitted. The distance is detected by the sensing assembly to indicate the torque transmitted by the unit.

Abstract: A steering shaft bearing assembly (100) for a vehicle having a steering shaft (102). The steering shaft bearing assembly includes a bearing (108) having a bore (112) adapted to receive the steering shaft and a support body (120) having an outer surface (124) and a passageway (126) passing through the support body. The bearing is at least partially disposed in the passageway so as to be suspended by the support body in the passageway in a predetermined position. The support body comprises a flexible material for permitting the bearing to move from the predetermined position. About 50% or more of the outer surface of the support body is free of a rigid support structure for restricting movement of the support body when coupled to the vehicle during operation.

Abstract: A hood assembly (100) adapted to be coupled to a vehicle having a hood (102) moveable between an open position and a closed position. The hood assembly includes a hood sub-frame (104) which includes a headlight mounting assembly (108) for permitting a left and right headlight (112 and 114) to be mounted to a left and right side of the hood sub-frame. The hood sub-frame also includes a hood mounting assembly (140 and 142) for coupling the hood sub-frame to the hood such that the hood sub-frame moves with the hood when the hood is coupled to the hood mounting assembly and moved between the open and closed positions. The hood sub-frame also has a cross brace assembly (144) passing between and coupled to the left side of the hood sub-frame and the right side of the hood sub-frame.

Abstract: A method of modular design suitable for use, for example, in a CAD program is provided. In one aspect, the method is embodied in a CAD program specifically configured to support modular design, or more specifically, concurrent and consistent design of multiple installation assemblies of a product. Each installation assembly consists of a reference assembly and a Bill-of-Material (BOM) assembly. The BOM assembly contains component models that are the modular elements to be designed. The reference assembly contains referenced assemblies that are installed to make up the design environment for the component models in the BOM assembly. The BOM assembly in one installation assembly can be reused as a referenced assembly in the reference assembly of another installation assembly. Any changes made to the BOM assembly are automatically reflected in the reference assembly that contains the same BOM assembly as a referenced assembly.

Abstract: An editable instrument assembly (100) for a vehicle. The editable instrument assembly includes a plurality of lenses (110), each lens having an icon (112) disposed thereon and a lens frame (108). The lens frame is adapted to removably receive each of the plurality of lenses. The editable instrument assembly also includes an instrument panel (102) comprising a lens frame receiving assembly (160) for removably and slidably receiving the lens frame with the plurality of lenses.

Abstract: An electronic winch monitoring system for a winch having a fixed-ratio gearbox with input and output shafts, a winch drum connected to the output shaft, and an auxiliary brake connected to the output shaft activated by reducing the pressure in a brake release hydraulic circuit. The system comprises an input shaft speed sensor, an output shaft speed sensor, and an electronic control unit having a monitoring section and a brake control section. The monitoring section receives the speed signals, processes them to produce a calculated ratio of actual input to output shaft speeds, and produces a fault indication signal when the value of the difference between the calculated speed ratio and the fixed ratio exceeds a predetermined value. The brake control section, upon receiving the fault signal, reduces the hydraulic pressure in the brake circuit using a nonlinear pressure-time profile to engage the auxiliary brake and stop the winch drum.