Patents by Inventor Paul R. FRIEND
Paul R. FRIEND has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20160035149Abstract: A truck spotting system is provided that uses a position detection module in a truck and a position detection module in a loader to provide a initial position and orientation of each machine. A perception module on-board the loader is configured to measure a distance and orientation of the truck relative to the loader. A controller receives a initial target position from the truck and calculates a target position from the distance and orientation, then communicates a refined target position to the truck.Type: ApplicationFiled: July 30, 2014Publication date: February 4, 2016Applicant: Caterpillar Inc.Inventor: Paul R. Friend
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Publication number: 20150276936Abstract: A cascaded coupled positioning system is provided for acquiring a position of a vehicle. In the current disclosure, a global navigation satellite system is coupled with a first inertial measurement unit. The global navigation satellite system is coupled with the first inertial measurement unit by using a first signal processing unit configured to provide a tightly coupled positioning solution. The tightly coupled positioning solution of the first signal processing unit is integrated with a second inertial measurement unit. The integration is performed using a second signal processing unit configured to provide a loosely coupled positioning solution.Type: ApplicationFiled: March 31, 2014Publication date: October 1, 2015Applicant: Caterpillar Inc.Inventors: Paul R. Friend, Eric A Reiners
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Patent number: 9134124Abstract: A system is provided. The system includes a perception sensor, a first inertial measurement unit and a first localization module. The first localization module is configured to generate a first position estimate signal indicative of an estimated position of the machine. The system includes a second inertial measurement unit and a second localization module. The second localization module is configured to generate a second position estimate signal indicative of the estimated position of the machine. A position determination module is communicably coupled to the first and second localization modules. The position determination module is configured to determine a health of the first and second localization modules based on one or more parameters indicative of errors associated with the first and second inertial measurement units respectively; and determine an estimated position of the machine based on the determined health of the first and second localization modules.Type: GrantFiled: February 11, 2014Date of Patent: September 15, 2015Assignee: Caterpillar Inc.Inventors: Qi Chen, Andrew Whitten, Paul R. Friend
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Patent number: 9131119Abstract: Systems and methods for assisted positioning of a haul machine at a destination position for receiving materials from a loading machine are provided. The method includes obtaining from at least one perception device information reflecting a location or orientation of a first fiducial attached to the loading machine; determining a location or position of the first fiducial based on the information provided by the at least one perception device; determining the destination position based on the location or position of the first fiducial; and issuing guidance to an operator of the haul machine indicating an adjustment in steering angle based on the determined destination position.Type: GrantFiled: November 27, 2012Date of Patent: September 8, 2015Assignee: Caterpillar Inc.Inventors: Paul R. Friend, Qi Chen, Eric A. Reiners
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Publication number: 20150226550Abstract: A system is provided. The system includes a perception sensor, a first inertial measurement unit and a first localization module. The first localization module is configured to generate a first position estimate signal indicative of an estimated position of the machine. The system includes a second inertial measurement unit and a second localization module. The second localization module is configured to generate a second position estimate signal indicative of the estimated position of the machine. A position determination module is communicably coupled to the first and second localization modules. The position determination module is configured to determine a health of the first and second localization modules based on one or more parameters indicative of errors associated with the first and second inertial measurement units respectively; and determine an estimated position of the machine based on the determined health of the first and second localization modules.Type: ApplicationFiled: February 11, 2014Publication date: August 13, 2015Applicant: Caterpillar Inc.Inventors: Qi Chen, Andrew Whitten, Paul R. Friend
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Patent number: 8924096Abstract: A system and method of controlling an earth moving implement of a machine is disclosed. The method may include receiving a pitch rate of the machine in a body reference frame and determining a roll of the machine. The method may further include determining a turning rate of the machine and calculating a pitch rate of the machine in a gravity reference frame based on the pitch rate of the machine in the body reference frame, the roll of the machine, and the turning rate of the machine. The method may further include controlling the earth moving implement based on the pitch rate of the machine in the gravity reference frame.Type: GrantFiled: October 31, 2012Date of Patent: December 30, 2014Assignee: Caterpillar Inc.Inventors: Drew Alan Fehr, Paul R. Friend
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Patent number: 8924095Abstract: A blade control system for a track-type machine is disclosed. The blade control system has a blade, an input device configured to control movement of the blade, an actuator in connection with the blade, a first sensor configured to determine a track-speed of the machine, and a control module in communication with the input device, the actuator, and the first sensor. The control module is configured to receive a blade positioning signal from the input device, remove a component of the blade positioning signal based on a the track-speed of the machine, and transmit a modified blade positioning signal to the actuator.Type: GrantFiled: October 26, 2012Date of Patent: December 30, 2014Assignee: Caterpillar Inc.Inventors: Drew A. Fehr, Paul R. Friend, Winnie E. Wong
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Publication number: 20140375497Abstract: A method for detecting and mitigating errors in a positioning system includes receiving a first signal from a global navigation satellite system (GNSS) indicative of a first position and a second signal from the GNSS indicative of a second position of a machine, determining a difference between the first position and the second position, detecting an error in a current position of the machine when the difference between the first and the second position exceeds a threshold of one of (a) a maximum distance given a maximum velocity, and (b) an actual distance determined based on an output of an inertial sensor on the machine, and mitigating the detected error in the current position of the machine by switching from an output of the positioning system to a position output determined based upon the output of the inertial sensor to update the current position.Type: ApplicationFiled: June 25, 2013Publication date: December 25, 2014Inventors: Paul R. Friend, Michael Taylor, Steven R. Krause, Andrew Whitten
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Patent number: 8773286Abstract: A system having a controller is provided. The controller receives a signal indicative of an actual position and an actual orientation of a machine on a worksite, from a position detection module. The controller determines a first view of the machine on the worksite. The first view shows the actual position of the machine and a target position of the machine. The controller determines a second view of the machine on the worksite. The second view has a first and a second indicator. The first indicator is indicative of the actual position and the actual orientation of the machine. The second indicator is indicative of the target position and a target orientation of the machine. The controller displays any one of the first view and the second view based, at least in part, on the actual position of the machine relative to the target position on a display unit.Type: GrantFiled: February 8, 2013Date of Patent: July 8, 2014Assignee: Caterpillar Inc.Inventors: Paul R. Friend, Qi Chen, Brian G. Funke
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Publication number: 20140146167Abstract: Systems and methods for assisted positioning of a haul machine at a destination position for receiving materials from a loading machine are provided. The method includes obtaining from at least one perception device information reflecting a location or orientation of a first fiducial attached to the loading machine; determining a location or position of the first fiducial based on the information provided by the at least one perception device; determining the destination position based on the location or position of the first fiducial; and issuing guidance to an operator of the haul machine indicating an adjustment in steering angle based on the determined destination position.Type: ApplicationFiled: November 27, 2012Publication date: May 29, 2014Applicant: Caterpillar Inc.Inventors: Paul R. Friend, Qi Chen, Eric A. Reiners
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Publication number: 20140121909Abstract: A system and method of controlling an earth moving implement of a machine is disclosed. The method may include receiving a pitch rate of the machine in a body reference frame and determining a roll of the machine. The method may further include determining a turning rate of the machine and calculating a pitch rate of the machine in a gravity reference frame based on the pitch rate of the machine in the body reference frame, the roll of the machine, and the turning rate of the machine. The method may further include controlling the earth moving implement based on the pitch rate of the machine in the gravity reference frame.Type: ApplicationFiled: October 31, 2012Publication date: May 1, 2014Applicant: Caterpillar Inc.Inventors: Drew Alan Fehr, Paul R. Friend
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Publication number: 20140121908Abstract: A blade control system for a track-type machine is disclosed. The blade control system has a blade, an input device configured to control movement of the blade, an actuator in connection with the blade, a first sensor configured to determine a track-speed of the machine, and a control module in communication with the input device, the actuator, and the first sensor. The control module is configured to receive a blade positioning signal from the input device, remove a component of the blade positioning signal based on a the track-speed of the machine, and transmit a modified blade positioning signal to the actuator.Type: ApplicationFiled: October 26, 2012Publication date: May 1, 2014Applicant: Caterpillar, Inc.Inventors: Drew A. FEHR, Paul R. FRIEND, Winnie E. WONG