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1. WO1999027196 - METHOD AND APPARATUS FOR CALCULATING WORK CYCLE TIMES

Publication Number WO/1999/027196
Publication Date 03.06.1999
International Application No. PCT/US1998/024579
International Filing Date 18.11.1998
IPC
E02F 3/43 2006.1
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
28with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets
36Component parts
42Drives for dippers, buckets, dipper-arms or bucket-arms
43Control of dipper or bucket position; Control of sequence of drive operations
E02F 9/20 2006.1
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
20Drives; Control devices
CPC
E02F 3/434
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
3Dredgers; Soil-shifting machines
04mechanically-driven
28with digging tools mounted on a dipper- or bucket-arm ; , i.e. there is either one arm or a pair of arms; , e.g. dippers, buckets
36Component parts
42Drives for dippers, buckets, dipper-arms or bucket-arms
43Control of dipper or bucket position; Control of sequence of drive operations
431for bucket-arms, front-end loaders, dumpers or the like
434providing automatic sequences of movements, e.g. automatic dumping or loading, automatic return-to-dig
E02F 9/2025
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
20Drives; Control devices
2025Particular purposes of control systems not otherwise provided for
G01G 19/083
GPHYSICS
01MEASURING; TESTING
GWEIGHING
19Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
08for incorporation in vehicles
083lift truck scale
Applicants
  • CATERPILLAR INC. [US]/[US]
Inventors
  • FONKALSRUD, Andrew, O.
  • HEYVELD, Doyle, G.
  • REINERS, Eric, A.
Agents
  • MCPHERSON, W., Bryan
Priority Data
08/979,88526.11.1997US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR CALCULATING WORK CYCLE TIMES
(FR) PROCEDE ET APPAREIL SERVANT A CALCULER DES DUREES DE CYCLES DE TRAVAIL
Abstract
(EN) In one aspect of the present invention, a method for determining the work cycle of an earth moving machine (102) is disclosed. The machine (102) has a transmission (118), a work implement (104), and a lift cylinder (108) and a tilt cylinder (106) connected to the work implement. The method includes the steps of determining a lift cylinder head end pressure, a displacement of the lift cylinder (108), a displacement of the tilt cylinder (106), and a direction of travel of the machine (102). The method further includes determining the work cycle of the machine (102) in response to the displacement of the tilt and lift cylinders (108, 106), and the lift cylinder head end pressure (122).
(FR) Un aspect de la présente invention concerne un procédé servant à déterminer le cycle de travail d'un engin (102) de terrassement. L'engin (102) comporte une transmission (118), un outil (104) de travail, ainsi qu'un vérin (108) de levage et un vérin (106) d'inclinaison connectés à l'outil de travail. Le procédé comporte les étapes consistant à déterminer une pression sur l'extrémité avant de vérin de levage, un déplacement du vérin (108) de levage, un déplacement du vérin (106) d'inclinaison et un sens de déplacement de l'engin (102). Le procédé comporte en outre l'étape consistant à déterminer le cycle de travail de l'engin (102) en réponse au déplacement des vérins (108, 106) de levage et d'inclinaison, et à la pression (122) sur l'extrémité avant du vérin de levage.
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