Caterpillar Inc.

Wayne J Wulfert

James Ivan Portscheller

Sukhwinder S Guron

Lyle E York

Vernon Richard Smith

Steven C Bray

Marvin K Palmer

Brett J Janson

Steven V Christensen

Milton Carter Hubbard

Susan J Gaugush

Wayne D Brandt

Dale B Herget

Jeffrey S Morris

Walt E Earleson

Rob E Stone

Michael E Roth

Matthew F Schoenberg

A software system development apparatus is provided. The software system development apparatus may include a processor and a computer-readable medium operatively coupled to the processor. The apparatus may also include a system design tool program stored on the computer-readable medium that, when executed by the processor, is operable to regulate user access to at least one aspect of the system design tool according to one or more authorization categories of users of the system design tool. The system design tool may also be operable to generate a real-time embedded control software system by selecting from a collection of reusable software components stored and described in a catalog in accordance with the Reusable Asset Specification (RAS).

Software development apparatus with regulated user access

In order to enhance an operator's ability to control a work machine, an operator control station includes a seat assembly that is moveably mounted to a body of the work machine. The operator can control, at least in part, primary operator controllable aspects of the work machine by manipulating work machine operating controls attached to move with the seat assembly. The operator can monitor a work machine operating condition, at least in part, via a work machine operating condition display panel also attached to move with the seat assembly. In addition, the operator control station is interchangeable among a plurality of work machines of different types and sizes.

Operator control station for controlling different work machines

A control system for use in connection with control systems on construction equipment includes an electronic control module that records pressure sensor signals of a hydraulic pressure sensor and responsively determines whether the pressure sensor has failed.

Control system for use on construction equipment

A method for operating machine transmission during braking, includes obtaining data relating to brake pedal position, machine velocity, machine engine speed, current transmission operating gear, and lowest operating gear. Next, downshifting thresh holds are set based on whether pedal position is in a downshift mode or a braking mode. Next, the transmission is downshifted if the machine velocity and machine engine speed are less than the downshifting thresh holds, and if the transmission operating gear is not the lowest operating gear. Next, the transmission is neutralized if the pedal position is in a neutralizing mode, if the velocity is less than a neutralizing thresh hold velocity, and if the transmission is in the lowest operating gear. Finally, the above steps are repeated until the transmission is neutralized.

Method and apparatus for transmission control during braking

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East Peoria, IL, United States of America

Wayne J Wulfert