Caterpillar Inc.

Brian Allen Byers

Justin Lee Steinlage

David R Wisley

Fazal Ahmad Goraya

Nathan Stephen Pauli

Kevin B Grover

Steven R Krause

Gerry Owen McCann

Yun Liu

Jason Bell

Gerard O McCann

Ramona Darlene Cone

Keith R Kosowski

Eric N Polston

Ryan A Kingdon

Donna K Laube

Ashok Krishnan

A system for controlling propulsion of a machine is described. The system includes a first sensor for generating a first signal indicative of an articulation angle of the machine. The system also includes at least one transmission power unit coupled to front and rear powertrains of the machine. The system further includes a control module in communication with the first sensor and the at least one transmission power unit. The control module is configured to receive the first signal from the first sensor. The control module is also configured to control the at least one transmission power unit to provide power to at least one of the front powertrain or the rear powertrain, based on the articulation angle of the machine.

System and method for controlling propulsion of machine

A control system for a machine having a transmission system is provided. The control system includes a wheel speed sensor and a controller. The wheel speed sensor is configured to generate a signal indicative of a wheel speed. The controller is in communication with the wheel speed sensor. The controller is configured to modulate a parameter of a power source based, at least in part, on a comparison of the wheel speed and a localized speed of the machine near the wheel.

Machine control system

A cycle counter for a wheeled tractor scraper is disclosed. The cycle counter may have an ejector configured to push material from a bowl of the wheeled tractor scraper, a sensor configured to generate a pressure signal indicative of a position of the ejector, and a controller in communication with the sensor. The controller may be configured to determine movement of the ejector toward a full dump position based on the pressure signal, and to record completion of a cycle for the wheeled tractor scraper after the ejector has reached the full dump position only if a value of the pressure signal exceeded a threshold value during movement of the ejector toward the full dump position.

Cycle counter for wheeled tractor scraper

A powertrain system for a mobile machine is disclosed. The powertrain system may have a power source, a plurality of traction devices, and a differential operatively connecting an output of the power source with the plurality of traction devices. The powertrain may also have a manual input device movable by an operator to generate a first signal indicative of a desire to lock the differential, at least one sensor configured to generate a second signal indicative of a parameter of the mobile machine, and a controller in communication with the at least one sensor, the manual input device, and the differential. The controller may be configured to inhibit locking of the differential based on the first signal when the second signal indicates the parameter deviating from an acceptable range.

Powertrain system having lockable differential

A method of limiting machine speed of a dual powertrain machine includes propelling the dual powertrain machine by transmitting power from a first engine of a first electronically controlled powertrain to a first set of ground engaging elements, and transmitting power from a second engine of a second electronically controlled powertrain to a second set of ground engaging elements. The method also includes identifying a machine speed limit, executing a first machine speed limiting algorithm in a first controller of the first electronically controlled powertrain to determine a first engine control command based on the machine speed limit, and controlling the first engine using the first engine control command. A second machine speed limiting algorithm is executed in a second controller of the second electronically controlled powertrain to determine a second engine control command based on the machine speed limit, and the second engine is controlled using the second engine control command.

Dual powertrain machine speed limiting

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Decatur, IL, United States of America

Brian Allen Byers