Abstract: An operator cab for a work vehicle includes: a cab enclosure including a roof an operator chair disposed in the cab enclosure; at least one layer of noise-deadening material coupled to the roof; and a headliner coupled to the roof such that the at least one layer of noise-deadening material is at least partially disposed between the headliner and the roof. The headliner includes a noise-reflective material and a noise escape region that comprises at least one opening configured to allow sound waves to pass through the noise escape region into the at least one layer of noise-deadening material and reduce noise reflection by the headliner to the operator chair.

Abstract: An operator cab for a work vehicle includes: a cab enclosure including a roof an operator chair disposed in the cab enclosure; at least one layer of noise-deadening material coupled to the roof; and a headliner coupled to the roof such that the at least one layer of noise-deadening material is at least partially disposed between the headliner and the roof. The headliner includes a noise-reflective material and a noise escape region that comprises at least one opening configured to allow sound waves to pass through the noise escape region into the at least one layer of noise-deadening material and reduce noise reflection by the headliner to the operator chair.

Abstract: A hood guiding system for a work vehicle may include first and second walls positioned within an engine compartment of the work vehicle. The system may also include a hood configured to extend in a crosswise direction of the work vehicle between a first side and a second side so as to least partially cover the engine compartment. Additionally, the system may include a first guide component coupled to the hood at or adjacent to its first side and a second guide component coupled to the hood at or adjacent to its second side. When the hood is moved from an opened position to a closed position, the first and second guide components may be configured to contact outer surfaces of the first and second walls, respectively, to guide the hood towards the closed position.

Abstract: A hood guiding system for a work vehicle may include first and second walls positioned within an engine compartment of the work vehicle. The system may also include a hood configured to extend in a crosswise direction of the work vehicle between a first side and a second side so as to least partially cover the engine compartment. Additionally, the system may include a first guide component coupled to the hood at or adjacent to its first side and a second guide component coupled to the hood at or adjacent to its second side. When the hood is moved from an opened position to a closed position, the first and second guide components may be configured to contact outer surfaces of the first and second walls, respectively, to guide the hood towards the closed position.

Abstract: An air intake system for a work vehicle may generally include an intake duct defining a passageway for directing air in a flow direction through the system. The duct may also include a pre-cleaner slot defined between inner and outer surfaces of the duct and a support ledge extending circumferentially around at least a portion of an inner perimeter of the duct. The system may also include a pre-cleaner configured to be installed within the intake duct by inserting the pre-cleaner through the pre-cleaner slot in a direction extending generally perpendicular to the flow direction. In addition, the air intake system may include a cover configured to be coupled to the intake duct such that the cover extends over the pre-cleaner slot when the pre-cleaner is installed within the intake duct.

Abstract: An air intake system for a work vehicle may generally include an intake duct defining a passageway for directing air in a flow direction through the system. The duct may also include a pre-cleaner slot defined between inner and outer surfaces of the duct and a support ledge extending circumferentially around at least a portion of an inner perimeter of the duct. The system may also include a pre-cleaner configured to be installed within the intake duct by inserting the pre-cleaner through the pre-cleaner slot in a direction extending generally perpendicular to the flow direction. In addition, the air intake system may include a cover configured to be coupled to the intake duct such that the cover extends over the pre-cleaner slot when the pre-cleaner is installed within the intake duct.

Abstract: An intake duct for an air intake system of a work vehicle is disclosed. The intake duct may generally include a body defining an air passage extending between an intake end and an outlet end. The body may further define a recessed intake at the intake end including a first side section and a second side section. Each of the first side section and the second side may define at least one side opening for directing air into the air passage. In addition, the recessed intake may include a deflector projecting outwardly from the first and second side sections. The deflector may be configured to shield the air passage from water directed towards the recessed inlet.

Abstract: An intake duct for an air intake system of a work vehicle is disclosed. The intake duct may generally include a body defining an air passage extending between an intake end and an outlet end. The body may further define a recessed intake at the intake end including a first side section and a second side section. Each of the first side section and the second side may define at least one side opening for directing air into the air passage. In addition, the recessed intake may include a deflector projecting outwardly from the first and second side sections. The deflector may be configured to shield the air passage from water directed towards the recessed inlet.

Abstract: An HVAC system for a work vehicle having an operator compartment for a vehicle operator, the system including a heating system, a compartment pressurizer blower, a compartment recirculation blower, a temperature sensor, and an operating mode switch, each operably coupled to an electronic circuit, wherein the circuit is configured to reduce pressurizer blower output when the operator selects high output from the heating system under certain predetermined temperature and conditions and operating modes to improve HVAC system performance.

Abstract: A steering wheel movement sensing apparatus for an agricultural vehicle comprising a magnetic ring configured to fit around the steering column such that it turns in unison with the steering wheel. The minimum number of magnetic poles on the ring is not defined, but a ring having at least 36 poles enables the movement sensor to detect steering wheel movement of 10 degrees. At least two hall-effect sensors fixed in a stationary position adjacent to the magnetic ring generate signals of fluctuating value as the magnetic poles pass enabling wheel movement and the extent of wheel movement to be derived. By specifically adjusting the position of the hall-effect sensors in relation to each other, the resultant output signals can also be used to determine the direction of movement of the steering wheel. Outputs from the sensing apparatus can be used to disengage an automated vehicle guidance system upon detection of steering wheel movement and to provide input to a self-cancelling turn signal system.

Abstract: An HVAC system for a work vehicle having an operator compartment for a vehicle operator, the system including a heating system, a compartment pressurizer blower, a compartment recirculation blower, a temperature sensor, and an operating mode switch, each operably coupled to an electronic circuit, wherein the circuit is configured to reduce pressurizer blower output when the operator selects high output from the heating system under certain predetermined temperature and conditions and operating modes to improve HVAC system performance.

Abstract: A steering wheel movement sensing apparatus for an agricultural vehicle comprising a magnetic ring configured to fit around the steering column such that it turns in unison with the steering wheel. The minimum number of magnetic poles on the ring is not defined, but a ring having at least 36 poles enables the movement sensor to detect steering wheel movement of 10 degrees. At least two hall-effect sensors fixed in a stationary position adjacent to the magnetic ring generate signals of fluctuating value as the magnetic poles pass enabling wheel movement and the extent of wheel movement to be derived. By specifically adjusting the position of the hall-effect sensors in relation to each other, the resultant output signals can also be used to determine the direction of movement of the steering wheel. Outputs from the sensing apparatus can be used to disengage an automated vehicle guidance system upon detection of steering wheel movement and to provide input to a self-cancelling turn signal system.

Abstract: An HVAC system for work vehicle having an operator compartment for an operator is disclosed. The HVAC system includes a pressurizer blower and an air-conditioning system coupled to an electronic circuit. The electronic circuit is configured to reduce the output of the pressurizer blower when the operator selects a high output from the air-conditioning system. The HVAC system is also configured to provide defog operation in both a manual mode and an automatic mode of operation. The HVAC system is configured to reset the defog operation when the vehicle ignition is turned off or turned back on. The HVAC system is also configured not to reset the defog operation when the operator switches rapidly between the automatic mode and the manual mode of operation.

Abstract: A controller area network based climate control system for a work machine, and a method of operation of the same, which advantageously and economically integrates into and utilizes the resources and capabilities of a CAN of a work machine, including, but not limited to, shared data from other systems of the machine, particularly engine data including engine operating speed and temperature, for controlling climate control system operation, as well as for troubleshooting and diagnosing problems.

Abstract: An HVAC system for work vehicle having an operator compartment for an operator is disclosed. The HVAC system includes a pressurizer blower and an air-conditioning system coupled to an electronic circuit. The electronic circuit is configured to reduce the output of the pressurizer blower when the operator selects a high output from the air-conditioning system. The HVAC system is also configured to provide defog operation in both a manual mode and an automatic mode of operation. The HVAC system is configured to reset the defog operation when the vehicle ignition is turned off or turned back on. The HVAC system is also configured not to reset the defog operation when the operator switches rapidly between the automatic mode and the manual mode of operation.

Abstract: An HVAC system for work vehicle having an operator compartment for an operator is disclosed. The HVAC system includes a pressurizer blower and an air-conditioning system coupled to an electronic circuit. The electronic circuit is configured to reduce the output of the pressurizer blower when the operator selects a high output from the air-conditioning system. The HVAC system is also configured to provide defog operation in both a manual mode and an automatic mode of operation. The HVAC system is configured to reset the defog operation when the vehicle ignition is turned off or turned back on. The HVAC system is also configured not to reset the defog operation when the operator switches rapidly between the automatic mode and the manual mode of operation.

Abstract: A mechanism for controlling raised and lowered positions of a hitch-mounted implement includes a rotatable control knob coupled to a transducer, e.g., a potentiometer, for movement between first and second positions representing the raised and lowered positions, respectively, of the implement. The control knob has a button for locking the mechanism in the implement-transport position and for other purposes. A position knob includes a tang-like stop for limiting rotation of the control knob toward the second position. The position knob thereby "sets" a lowered position of the implement which is somewhat above the lowest possible position of the implement. The position knob may be rotated to locate the stop anywhere between two barriers which set the overall limits of travel of the control knob. Most preferably, the position knob is clamped between a barrier member and a console surface and is frictionally inhibited from rotating.