Excavating – Ditcher – Condition responsive
Patent
1994-06-15
1996-02-27
Melius, Terry Lee
Excavating
Ditcher
Condition responsive
36442407, 414694, 414699, E02F 334
Patent
active
054937981
ABSTRACT:
According to one aspect of the present invention, a control system for automatically controlling a work implement of an excavating machine through an excavation work cycle is provided. The work implement includes a boom, stick and bucket, each being controllably actuated by at least one respective hydraulic cylinder, the hydraulic cylinders containing pressurized hydraulic fluid. The control system includes an operator control element adapted to produce an operator control signal indicative of a desired velocity of one of the hydraulic cylinders. An electrohydraulic valve actuates predetermined ones of the hydraulic cylinders to perform an excavation work cycle in response to the control signal. A sensor produces signals indicative of the forces associated with at least one of the hydraulic cylinders. A logic device receives the operator control signals, compares the control signal magnitudes to predetermined control signal magnitudes, and determines operating parameters associated with predetermined portions of the work cycle. Finally, the logic device receives the operator control signals and force signals, and responsively produces command signals to the electrohydraulic valve to automatically perform subsequent work cycles in accordance with the determined operating parameters.
REFERENCES:
patent: 3583585 (1971-06-01), Joyce
patent: 3869814 (1975-03-01), Rannev et al.
patent: 4332517 (1982-06-01), Igarashi et al.
patent: 4377043 (1983-03-01), Inui et al.
patent: 4500250 (1985-02-01), Maurer et al.
patent: 4866641 (1989-09-01), Nielsen et al.
patent: 4910673 (1990-03-01), Narisawa et al.
patent: 5002454 (1991-03-01), Hadank et al.
patent: 5065326 (1991-11-01), Sahm
patent: 5116186 (1992-05-01), Hanamoto et al.
patent: 5128599 (1992-07-01), Nikolaus et al.
patent: 5160239 (1992-11-01), Allen et al.
patent: 5170342 (1992-12-01), Nakamura et al.
patent: 5178510 (1993-01-01), Hanamoto et al.
patent: 5188502 (1993-02-01), Tonsor et al.
patent: 5218895 (1993-06-01), Lukich et al.
patent: 5224033 (1993-06-01), Nakamura et al.
patent: 5274557 (1993-12-01), Moriya et al.
"A Laboratory Study of Force-Cognitive Excavation", D. M. Bullock et al Jun. 6-8, 1989, Proceedings of the Sixth International Symposium on Automation and Robotics in Construction.
"A Microcomputer-Based Agricultural Digger Control System", E. R. I. Deane et al., Dec. 20, 1988, Computers and Electronics in Agriculture (1989), Elsevier Science Publishers.
"An Intelligent Task Control System for Dynamic Mining Environments", Paul J. A. Lever et al., pp. 1-6, Presented at 1994 SME Annual Meeting, Albuquerque, New Mexico, Feb. 14-17, 1994.
"Artificial Intelligence in the Control and Operation of Construction Plant-The Autonomous Robot Excavator", D. A. Bradley et al., Automation in Construction 2 (1993), Elsevier Science Publishers B.V.
"Automated Excavator Study", James G. Cruz, A Special Research Problem Presented to the Faculty of the Construction Engineering and Management Program, Purdue University, Jul. 23, 1990.
"Cognitive Force Control of Excavators", P. K. Vaha et al. pp. 159-166. The Manuscript for this Paper was Submitted for Review and Possible Publication on Oct. 9, 1990. This Paper is part of the Journal of Aerospace Engineering, vol. 6, No. 2, Apr., 1993.
"Control and Operational Strategies for Automatic Excavation", D. A. Bradley et al., Proceedings of the Sixth International Symposium on Automation and Robotics in Construction, Jun. 6-8, 1989.
"Design of Automated Loading Buckets", P. A. Mikhirev, pp. 292-298, Institute of Mining, Siberian Branch of the Academy of Science of the USSR, Nevosibirsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 79-86, Jul.-Aug., 1986. Original Article Submitted Sep. 28, 1984, Plenum Publishing Corporation, 1987.
"Development of Unmanned Wheel Loader System-Application to Asphalt Mixing Plant", H. Ohshima et al., Published by Komatsu, Nov. 1992.
"Just Weigh it and See", Mike Woof, p. 27, Construction News, Sep. 9, 1993.
"Method of Dipper Filling Control for a Loading-Transporting Machine Excavating Ore in Hazardous Locations", V. L. Konyukh et al., pp. 132-138, Institute of Coal, Academy of Sciences of the USSR, Siberian Branch, Kemorovo. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 67-73, Mar.-Apr., 1988. Original Article Submitted Jun. 18, 1987, Plenum Publishing Corporation, 1989.
"Motion and Path Control for Robotic Excavation", L. E. Bernold, Sep., 1990, Submitted to the ASCE Journal of Aerospace Engrg.
Patent Application No. 08/216,386, filed Mar. 23, 1994, Entitled "Automatic Excavation Control System and Method", David J. Rocke, Docket No. 93-328.
Patent Application No. 08/216,395, filed Mar. 23, 1994, Entitled "Payload Determining System and Method for an Excavating Machine", David J. Rocke et al., Docket No. 93-327.
Patent Application No. 08/217,033 filed Mar. 23, 1994, Entitled "Self-Adapting Excavation Control System and Method", David J. Rocke, Docket No. 93-330.
Patent Application No. 08/217,034, filed Mar. 23, 1994, Entitled "System and Method for Determining the Completion of a Digging Portion of an Excavation Work Cycle", David J. Rocke, Docket No. 93-326.
Devier Lonnie J.
Herget Dale B.
Rocke David J.
Caterpillar Inc.
Janda Steven R.
Melius Terry Lee
Pezzuto Robert
LandOfFree
Teaching automatic excavation control system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Teaching automatic excavation control system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Teaching automatic excavation control system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1671024