1
William E Allen, John P Sewell: Method and apparatus for establishing a perimeter defining an area to be traversed by a mobile machine. Caterpillar, Steve D Lundquist, Haverstock Garrett & Roberts, August 29, 2000: US06112143 (164 worldwide citation)

In one embodiment of the present invention, an apparatus and method for establishing the perimeter of a work site for a mobile machine capable of operating autonomously or semi-autonomously includes activating a learning mode, positioning the mobile machine at a plurality of locations on the perimet ...


2
Darin S Motz, Michael D Staub: System and method for planning the operations of an agricultural machine in a field. Caterpillar, Marla L Hudson, Steve D Lundquist, May 22, 2001: US06236924 (129 worldwide citation)

The system includes a path planning system adapted to store a site model of the field. The site model includes data defining a plurality of parameters associated with the field. The path planning system is further adapted to receive information indicative of a work implement connected to the agricul ...


3
David C Janzen, Louis G Alster: Computer-aided farming system and method. Caterpillar, Steve D Lundquist, October 31, 2000: US06141614 (88 worldwide citation)

A computer-aided farming system having a first control system which receives data defining a plurality of parameters. The first control system responsively determines a plurality of nodes located at an agricultural field, and determines a condition status associated with each node. The system also h ...


4
Michael D Staub, Darin S Motz: Autoguidance system and method for an agricultural machine. Caterpillar, Steve D Lundquist, May 22, 2001: US06236916 (86 worldwide citation)

A system and method for providing autoguidance for an agricultural machine. The system includes a main machine control module to control steering of the agricultural machine, a position determining system, and a guidance map. The system also includes an autoguidance control module to receive a posit ...


5
Adam J Gudat: Apparatus and method for receiving position and control signals by a mobile machine. Caterpillar, Steve D Lundquist, December 14, 1999: US06002362 (71 worldwide citation)

A base station receives GPS signals from GPS satellites and transmits a combined differential GPS (DGPS) signal and a command signal. At least one pseudolite receives the DGPS and command signals and combines the DGPS and command signals with a pseudo-GPS signal. A GPS receiver on a mobile machine r ...


6
George Codina, Thomas J Richards: Method and apparatus for starting an engine using capacitor supplied voltage. Caterpillar, Steve D Lundquist, December 4, 2001: US06325035 (66 worldwide citation)

A method and apparatus for starting an internal combustion engine using energy stored in a capacitor. The method and apparatus includes at least one battery for providing energy at a low voltage, an inverter for receiving the energy at the low voltage and producing energy at a high voltage, a capaci ...


7
Darren A Hartman, Kevin X Huang, James A Krellner, John J Krone: Method and apparatus for controlling a mobile machine during start-up. Caterpillar, Steve D Lundquist, July 24, 2001: US06266596 (60 worldwide citation)

A method and apparatus for controlling a mobile machine during start-up. The mobile machine has a prime power source, a means for transport, and at least one auxiliary system; the means for transport and the at least one auxiliary system are controllably driven by the prime power source. The method ...


8
Gerald N Coleman, Kevin P Duffy, Stephen A Faulkner, Eric C Fluga, Jonathan P Kilkenny, Scott A Leman, Cornelius N Opris, Maarten Verkiel, James R Weber: Air and fuel supply system for combustion engine. Caterpillar, Steve D Lundquist, November 25, 2003: US06651618 (60 worldwide citation)

A method of operating an internal combustion engine, including at least one cylinder and a piston slidable in the cylinder, may include supplying a mixture of pressurized air and recirculated exhaust gas from an intake manifold to an air intake port of a combustion chamber in the cylinder, selective ...


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Jagannathan Sarangapani: Method for determining the condition of engine oil based on TBN modeling. Caterpillar, Steve D Lundquist, November 23, 1999: US05987976 (49 worldwide citation)

A method for monitoring the condition of oil in an engine is disclosed which includes the steps of determining a plurality of parameters, determining a fuel injection model, determining the area of the cylinder walls that is coated with fuel, and responsively determining a total base number (TBN) mo ...