Machine having hydraulically actuated implement system with down force control, and method

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United States of America Patent

PATENT NO 8858151
APP PUB NO 20130045071A1
SERIAL NO

13210653

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Abstract

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A machine includes a frame having ground engaging propulsion elements coupled therewith, and a hydraulically actuated implement system having a linkage, an implement coupled with the linkage, and a hydraulic actuator coupled with the linkage. The machine further includes a control system having an electronic control unit configured to receive an implement down force control command, and responsively adjust a pressure of hydraulic fluid in the hydraulic actuator such that the implement rests with controlled down force upon a substrate below the machine. The controlled down force may be less than a quiescent down force of the hydraulically actuated implement system. Related methodology is also disclosed.

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Patent Owner(s)

Patent OwnerAddress
CATERPILLAR INCINTELLECTUAL PROPERTY DEPARTMENT 100 NE ADAMS STREET PEORIA IL 61629

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Atkinson, David C Dunlap, US 10 173

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