Global Patent Index - EP 0900887 A4

EP 0900887 A4 2000-05-24 - CONTROLLER OF CONSTRUCTION MACHINE

Title (en)

CONTROLLER OF CONSTRUCTION MACHINE

Title (de)

STEUERVORRICHTUNG EINER BAUMASCHINE

Title (fr)

ORGANE DE COMMANDE D'ENGIN DE CONSTRUCTION

Publication

EP 0900887 A4 (EN)

Application

EP 97913472 A

Priority

  • JP 9704361 W
  • JP 32316196 A

Abstract (en)

[origin: WO9824985A1] A controller of a construction machine such as a hydraulic shovel which digs the ground has an angle detecting means (20-22) for detecting the posture of an articulated arm mechanism in terms of angle information, a converting means (26) which converts the detected angle information into expansion/contraction displacement information of a corresponding cylinder actuator (120-122) and a control means (1) which controls the actuator (120-122) to have the required expansion/contraction displacement in accordance with the obtained expansion/contraction displacement information. Thus the position and posture of a working member (400) can be accurately and stably controlled while the cost is kept low.

IPC 1-7 (main, further and additional classification)

E02F 3/43

IPC 8 full level (invention and additional information)

E02F 3/43 (2006.01); E02F 9/26 (2006.01); E02F 9/22 (2006.01)

CPC (invention and additional information)

E02F 9/2296 (2013.01); E02F 3/437 (2013.01); E02F 9/2285 (2013.01); E02F 9/2292 (2013.01); E02F 9/26 (2013.01)

Citation (search report)

  • [Y] EP 0512584 A2 19921111 - KOMATSU MFG CO LTD [JP]
  • [Y] EP 0293057 A2 19881130 - HITACHI CONSTRUCTION MACHINERY [JP]
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 018, no. 338 (M - 1628) 27 June 1994 (1994-06-27)
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 014, no. 549 (M - 1055) 6 December 1990 (1990-12-06)
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 006, no. 157 (M - 150) 18 August 1982 (1982-08-18)
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 013, no. 458 (M - 880) 17 October 1989 (1989-10-17)
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 016, no. 169 (M - 1239) 23 April 1992 (1992-04-23)
  • See also references of WO 9824985A1

Designated contracting state (EPC)

BE DE FR GB IT

EPO simple patent family

WO 9824985 A1 19980611; CA 2242755 A1 19980611; CN 1210570 A 19990310; EP 0900887 A1 19990310; EP 0900887 A4 20000524; JP H10159123 A 19980616

INPADOC legal status


2003-01-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020601

2000-05-24 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000410

2000-05-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): BE DE FR GB IT

1999-03-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980831

1999-03-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE FR GB IT