Jason S Knowles

US Patent:

20200270848, Aug 27, 2020

Filed:

Feb 22, 2019

Appl. No.:

16/283137

Inventors:

- Deerfield IL, US
Jason KNOWLES - Washington IL, US

International Classification:

E02F 9/26
E02F 3/43
E02F 9/20
E02F 3/28

Abstract:

method is disclosed. The method may include controlling a leading edge of an implement of a machine using a first control loop to cause the implement to align to a defined design plan; controlling a trailing edge of the implement of the machine using a second control loop to cause the implement to align to the defined design plan; and selectively altering a gain to the second control loop based on a detected deviation of the implement from the defined design plan to increase an angle of approach, using the first control loop, when the implement is positioned above the defined design plan and decrease the angle of approach, using the first control loop, when the implement is aligned to the defined design plan.

US Patent:

20140237868, Aug 28, 2014

Filed:

Feb 28, 2013

Appl. No.:

13/780446

Inventors:

- Peoria IL, US
Jeffrey E. Buettner - East Peoria IL, US
Jason S. Knowles - Morton IL, US
Robert K. Cannon - Peoria IL, US

Assignee:

CATERPILLAR INC. - Peoria IL

International Classification:

E02F 3/65
E02F 3/64

US Classification:

37413, 701 344, 701 334

Abstract:

A load estimator is disclosed for use with a scraper. The load estimator may have a first sensor configured to generate a first signal indicative of a performance parameter of the scraper, a second sensor configured to generate a second signal indicative of a hydraulic pressure associated with a bowl of the scraper, and a controller in communication with the first and second sensors. The controller may be configured to classify a current segment of an ongoing work cycle based on the first signal. The controller may also be configured to selectively estimate a load of material contained with the bowl of the scraper based on the second signal only when the current segment is classified as a segment where the load can be reliably estimated.