Caterpillar Inc.

James Allen Roal

Jackson Wai

Daniel E Henderson

Bryan G Lammers

Kirk S Shively

Aaron J Gnagey

Cory Denton Smith

Mark J Hilbert

Mark Behn

Richard “Cort” Severns, Ii

Mohammad Rahman

A method for controlling a hybrid machine is disclosed. The hybrid machine may be equipped with a turbine engine, a generator connected in series with the turbine engine, an electrical energy storage device, and a motor drivingly connected to a power output component for the hybrid machine. A controller may receive a power demand signal, determine a power level in the electrical energy storage device, determine available inertial energy stored at least in rotating components of the turbine engine and the generator, and provide one or more control signals to selectively control powering the turbine engine to full power, selectively turn off all fuel to the turbine engine, selectively store excess energy as electrical energy by directing excess electrical energy from the generator to the electrical energy storage device, and selectively store excess energy as inertial energy.

Turbine engine hybrid power supply

The disclosure describes, in one aspect, a control system for controlling a braking system. The control system includes a parking brake operatively to at least one wheel, a park brake override mechanism operatively associated with the parking brake, an inching pedal operatively coupled to a transmission, a shift lever operatively coupled to the transmission, at least one sensor operatively coupled to the parking brake to detect when the parking brake is engaged, at least one sensor operatively coupled to the inching pedal to detect a depression of the inching pedal, and at least one sensor operatively coupled to the shift lever for detecting at least one of a forward or reverse gear selection. The control system further includes a controller operatively coupled to the at least one sensors to receive corresponding signals and adapted to control the engagement of the parking brake when the inching pedal is depressed and the at least one of the forward or reverse gear selections is desired.

System and method for controlling a brake system

A method of indicating a fault associated with a non-combustion chamber of an engine includes monitoring a fluid intake pressure for the engine, monitoring a pressure for a non-combustion chamber of the engine, and indicating a fault associated with the non-combustion chamber based on a difference between a first non-combustion chamber pressure and a second non-combustion chamber pressure being below a chamber threshold value.

Method and system for indicating a fault associated with a non-combustion chamber of an engine

A method of identifying an electrical fault in an electrical system may include coupling an electronic service tool to an electronic control module. The method may also include instructing the electronic control module to disable an enable condition and modify a trip condition set by the electronic control module. The method may further include monitoring the electrical system as a user wiggles a component of the electrical system. The method may further include providing the electronic control module with electrical system data, and generating a fault code when the electrical system data fulfills the modified trip condition. The method may further include communicating the fault code to the user.

Apparatus and method for identifying electrical faults

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Dunlap, IL, United States of America

James Allen Roal