Caterpillar Inc.

Robert A Herold

Adam J Gudat

Paul Thomas Corcoran

John F Szentes

Daniel E Henderson

William E Allen

Noel J Rytter

Steven R Krause

Ali A Bitar

Robert Leslie Isaacs

Riley A Albers

Fuaad Sayeed

Jason P Wigg

Dean A Worrell

J Scott Burdick

Jon S Burdick

William C Evans

M Kathryn Christensen

Mark B Rinkel

James V Dornberger

Rowan T Franks

Chad A Moore

Samuel Shropshire

Jeffery J Carter, Jr

Kelsey L Milman

Nuwan Janaka Gallege

Michael M Payne

Minjiang Ji

Sen M Kuo

Brodie L Thompson

Dennis W Dicker

An actuated shear pin includes an actuator and pin body coupled to the actuator. The actuator selectively configures the pin body in a locking configuration or a stowed configuration. In the locking configuration, the pin body is placed in a travel path of two components configured to move relative to each other, to inhibit such relative movement. In the stowed configuration, the pin body is out of the travel path, thereby allowing the two components to move relative to each other.

Control system for actuated pins

A control system for a machine is disclosed. The control system may have an engine configured to combust a mixture of fuel and air and generate a mechanical power output and a flow of exhaust, and a sensor configured to generate a signal indicative of the machine moving between zones having different air characteristics. The control system may also have a controller in communication with the engine and the sensor. The controller may be configured to selectively adjust operation of the engine based on the signal in an amount related to the air characteristics.

Control system implementing derate based on air characteristics

An output transfer group, or drop box, can include a housing and a gear transfer train, rotatably supported within the housing, that includes an input gear adapted for enmeshing engagement with a transmission output shaft and a gear transfer output shaft that is rotatable upon rotation of the input gear. A coupler can be provided that includes a hub rotatively coupled with the gear transfer output shaft, a bearing carrier, a coupler output shaft rotatively coupled to the bearing carrier, and a coupling mechanism rotatively coupled to the bearing carrier. The coupling mechanism can be movable between an engaged position, wherein the coupling mechanism is rotatively coupled to the hub, and a disengaged position, wherein the coupling mechanism is disengaged from the hub. A solenoid can be arranged with the coupling mechanism to selectively move the coupling mechanism from the disengaged position to the engaged position.

Drop box for powertrain

A method and system for controlling work site dust conditions are provided. The method may include providing a mobile dust control machine configured to treat a dust condition within a work location. The dust control machine may be disposed distant from the work location. The method may further include monitoring a dust condition of the work location, generating a dust control signal in response to monitoring the dust condition, dispatching the mobile dust control machine to the work location in response to the dust control signal, and operating the mobile dust control machine at the work location.

Work site dust control system

An apparatus coupled to a work machine for assisting the work machine in removing a first layer of material from a second layer of material is provided. The work machine includes a work implement with a cutting portion. The work implement is elevationally movably connected to the work machine. The cutting portion extends in a direction transverse the longitudinal axis of the work machine. An electromagnetic unit, connected to the work machine, delivers electromagnetic radiation towards the surface, receives a reflection of the delivered electromagnetic radiation, and delivers a responsive first signal. The electromagnetic radiation penetrates the first layer of material and reflects off of the second layer of material. A controller receives the first signal, determines the distance between the electromagnetic unit and the second layer of material and responsively produces a distance signal. An implement controller receives the distance signal and responsively actuates the work implement relative to the frame.

Implement control system for locating a surface interface and removing a

An automatic object responsive control system for a work implement has a ground penetrating device mounted for sensing subsurface objects, an object detecting device for determining the undesirability of the object, and an implement control system for automatically elevationally raising the implement in response to an undesirable object being located elevationally between the implement and the ground penetrating device. The automatic object responsive control system is particularly suited for use on a geographic surface altering machine.

Object responsive implement control system

An electrohydraulic control device for a drive train of a machine is disclosed. The drive train includes an engine, a transmission, and a torque converter having a rotating housing. The torque converter is drivingly connected between the engine and the transmission. The torque converter also includes an impeller element. An impeller clutch connects the impeller element to the rotating housing. An impeller clutch electrohydraulic valve produces fluid flow to the impeller clutch to controllably engage and disengage the impeller clutch. A torque converter speed sensor senses the output speed of the torque converter and responsively produces a torque converter speed signal. A electronic device receives the measured torque converter speed signal, determines a desired torque convertor speed signal, produces an error speed signal in response to a difference between the measured and desired torque converter speed signals, and controllably actuates the electrohydraulic valve to cause the speed error signal to approach zero.

Electrohydraulic control device for a drive train of a machine

The system employing and the processing of, an indirectly sensed signal representative of a periodic noise acoustic wave into an input signal for a noise cancelling system where the indirectly sensed signal is converted into a pulse signal per period that carries fundamental and harmonic frequency information of the periodic noise. A tachometer type RPM signal is processed in a counter circuit controlled by a logic circuit to produce a signal of one pulse per revolution with a controlled duration, the pulse amplitude is adjusted, the pulses are low pass filtered and any D.C. is blocked from the noise cancelling system input.

Indirectly sensed signal processing in active periodic acoustic noise

Apparatus and method for determining the linear position of a hydraulic

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Peoria, IL, United States of America

Robert A Herold