Abstract: An extension plate for use in a compactor includes an elongate body extending between a first surface configured to be coupled to the compactor frame and a second surface configured to be coupled to a support of the compactor. The first surface includes a first opening aligning with an opening into an interior of the compactor. A second opening in at least one of the elongate body or the second surface communicates with the first opening to allow passage of a hose through the extension plate and through the opening in the frame into the interior space.

Abstract: A track tension actuator is provided for a track assembly having, an idler wheel, a drive wheel, a drive track entrained about the drive wheel and idler, and a hydraulic motor operable to advance the drive wheel. A drive circuit is operable to supply pressurized fluid to the hydraulic motor. The actuator is coupled to the idler wheel, and includes a travel chamber, travel piston, a recoil chamber, and a recoil piston. The recoil chamber is pressurized to urge the recoil piston in a first direction away from the drive wheel. The drive fluid pressurizes the travel piston, which in turn contacts and urges the travel piston in a second direction against the recoil piston to reduce the track tension.

Abstract: It is desirable to deliver only the fluid that is used to do useful work and not waste energy. In the subject arrangement, selected ones of a plurality of pistons are held at their top dead center positions when delivery therefrom is not needed. This is accomplished by having a valving arrangement disposed between the associated pressure chambers and first and second inlet/outlet ports. The valving arrangement is movable from a neutral, flow blocking position to an operative flow passing position. At the flow blocking position, fluid flow into and out of the associated pressure chamber is blocked, thus the associated piston is maintained at the top dead center position. By holding selected ones of the pistons at the top dead center position, the effective volume of fluid being used is reduced and energy is saved due to the fact that the selected pistons are not moving any fluid.

Abstract: A wavelet generator for defining wavelets that represent a first signal includes a programmable filter bank, a frequency band controller coupled to the programmable filter bank, and a wavelet constructor coupled to the programmable filter bank. The programmable filter bank is operable to receive the first signal, and filter the first signal based upon a plurality of frequency bands to obtain a plurality of frequency band signals that each represent a frequency band of the first signal. The frequency band controller is also operable to receive the first signal. Moreover, the frequency band controller is further operable to obtain the plurality of frequency bands from the first signal, and program the programmable filter bank with the plurality of frequency bands. The wavelet constructor is operable to receive the plurality of frequency band signals.

Abstract: A roll over protection structure for a work machine includes an operator cab and a rotation mount connecting one face of the cab to the work machine. The rotation mount provides for rotation of the cab about an axis parallel to the work machine longitudinal axis. A deforming member connects a second face of the operator cab with the work machine and is characterized by elastic deformation responsive to normal operational shocks acting on said cab, and by controlled plastic deformation responsive to larger forces indicative of a machine roll over.

Abstract: A method and system for producing production control software for a plurality of electronic control modules, is provided. The electronic control modules are located on production machines. Each production machine includes a subset of the electronic control modules. The system includes a part file staging area for receiving and storing new production control software from a design engineering group. A product engineering workstation is coupled to the part file staging area and operated by a product engineering user. The product engineering user can review, modify and approve the new production control software. A production staging area, coupled to the product engineering workstation, receives and stores approved production control software and receives an order for a production machine.

Abstract: A method and system for automatically controlling a work implement of an earthmoving machine, the work implement including a bucket, to capture, lift and dump material, the bucket being controllably actuated by a hydraulic tilt cylinder and at least one hydraulic lift cylinder, based on discrete values of torque is disclosed.

Abstract: A driver for producing a desired pulse width modulated current through a load has a driver control for storing diagnostics codes in a diagnostic register responsive to detection of at least one electrical fault condition in a circuit including the load. A short circuit detection signal is generated in response a sensed current exceeding a programmed load current range for the driver, whereupon the driver control disables the load current and generates an interrupt signal to a microprocessor. Open circuits and shorts across the load are distinguished by way of a minimum current signal representative of a sensed current flowing through the load exceeding a predetermined minimum.

Abstract: A noise suppression louver for an enclosure, in particular, an apparatus for suppressing sound at the openings which allow air to enter or exit an internal combustion engine enclosure. The louver comprises a matrix of intersecting horizontal and vertical passive sound absorptive slats.

Abstract: A analog data neural network processing system is provided in which there is a self optimization capability that varies the signal processing factors in response to a detected contrast in the system output patterns. The system provides feedback type guidance in varying such processing factors as sampling rate, frame length, signal transformation, neural network vigilance and architecture, each in a direction that will maximize or minimize the contracts with patterns used to train the network. The processing system is useful in all signal classification tasks.

Abstract: An apparatus and method for diagnosing an engine using computer based models in combination with a neural network which reduces the neural network training and updating required is disclosed. The method and apparatus determine modeled values for a plurality of engine parameters as a function of sensed values in a plurality of initial values; sense a plurality of actual values for the engine parameters; and determine a difference between the actual values and the modeled values for the respective engine parameters. The differences are inputted into a neural network which generates an output pattern as a function of the differences and a plurality of weight values. The weight values and the initial values are then updated as a function of a comparison between the output patterns and a desired pattern, and the engine is responsively diagnosed as a function of the output pattern.

Abstract: A method and system for detecting torque of a reciprocating internal combustion engine, the internal combustion engine having at least one cylinder and a rotatable crankshaft. This method and system includes sensing rotational crankshaft speed for a multiple of designated crankshaft rotational positions over a predetermined number of cycles of rotation for each crankshaft position and determining an average crankshaft speed fluctuation for each crankshaft position and determining information representative of crankshaft kinetic energy variations due to each firing event and each compression event in the cylinder and then determining information representative of crankshaft torque as a function of the crankshaft kinetic energy variations and the average crankshaft speed and responsively producing a representative crankshaft torque signal.

Abstract: A control system including a weight sensing mechanism for sensing weight of the material in a bucket of an earth moving machine and a logic mechanism for receiving the weight signals for the material in the bucket from the weight sensing mechanism and then determining a total summed weight of the material for a total number of capture, lift, and dump cycles needed to capture, lift and dump a predetermined weight of the material with the bucket and then generating various command signals based on the weight signal from each capture, lift and dump cycle and the total summed weight for the total number of capture, lift and dump cycles. In addition, there is a hydraulic implement controller for controlling hydraulic fluid flow to the hydraulic tilt cylinder and the hydraulic lift cylinder in response to the command signals thereby controllably actuating the bucket of the earthmoving machine in order to capture, lift and dump material.

Abstract: A method and system for detecting absolute power loss in a cylinder for a reciprocating internal combustion engine, the internal combustion engine having at least one cylinder and a rotatable crankshaft.

Abstract: A system and method for measuring end gap position and rotation of rings on a piston reciprocating in an engine cylinder. Eddy current induction detectors are installed in ports extending through the cylinder wall spaced around the circumference. Signals are collected from each detector over a portion of the engine cycle for a number of revolutions, and the end gap position is associated with a detector having a significant variation in sensed induction currents.

Abstract: A jump and return to grade function provides a means by activation of a switch to rapidly raise a milling machine to avoid an obstacle, then return the machine to the previous milling position. When the jump function is activated, the legs are extended at full speed, causing the machine to rise. In the return to grade function, the legs are retracted at controlled speeds until the previous milling depth is reached or the switch is released.

Abstract: A pulse width modulation driver provides programmable current control for a variety of load current ranges using a modulation feedback block. The block scales a signal representative of a sensed current flowing through the load by a selectable gain multiplier. The scaled signal is compared to a target current value to indicate to a driver control when to generate trigger signals for switching current through the load. In this way, load currents can be amplified to match the operational range of the comparator.

Abstract: A malfunction diagnostic and repair guidance system and method wherein a matrix of numbers indicating the state of a complex binary system is used as an input vector for a neural network pattern processing capability that is focused to distinguish malfunction types of patterns. The neural network capability provides two complementary network types to classify and generalize the binary matrix. An interactive operator interface is updated with each repair after the root cause and is proposed repair of a malfunction is identified.

Abstract: A driver for producing a desired pulse width modulated current through a load is provided with a sequencer for generating a plurality of wave forms phase-shifted so as to have non-overlapping duty cycles. A target generator supplies a target current value to a comparator, which compares the target current value to a signal representative of a sensed current flowing through the load. A driver control is responsive to a duty-cycle of only one of the plurality of wave forms to selectively generate trigger signals for switching current through the load in response to the result of the comparison.

Abstract: An electrohydraulic control system for loading a bucket of an earthmoving machine includes sensors for sensing when the machine is crowding a pile of material to be loaded. A command signal generator monitors the sensed "crowd" parameters to trigger one of a learning or playback mode for hydraulic cylinder command signals when the parameter indicates pile contact.