EP 0471840 A4 19920826 - ELECTRONIC CONTROL TYPE HYDRAULIC DRIVING MACHINE
Title (en)
ELECTRONIC CONTROL TYPE HYDRAULIC DRIVING MACHINE
Publication
Application
Priority
- JP 4520189 A 19890228
- JP 4520289 A 19890228
- JP 4520389 A 19890228
Abstract (en)
[origin: WO9010116A1] This invention relates to an electronic control type hydraulic driving machine which does not require any exclusive equipment butpermits an unmanned operation through a remote control operation, can select and set easily each work mode by an external memory such as an IC card, and enables an operator to experience the operation of a vehicle or working machine by gripping an operation lever even during automatic operation. This machine includes an electronic control type hydraulic valve device (2) for making supply control of a pressure oil to hydraulic actuators (1a, 1b) for driving the working machine, an electronic controller (3) for the valve device, an electrical operation lever device (4) for outputting a lever operation signal and a work automation controller (8) for outputting an operation signal to the electronic controller. It may include further an external memory reader (18), a radio control reception controller (11) for the remote operation, a radio control/manual operation switching device (10), and the like.
IPC 1-7
IPC 8 full level
CPC (source: EP KR)
E02F 3/438 (2013.01 - EP); E02F 9/20 (2013.01 - KR); E02F 9/221 (2013.01 - EP)
Citation (search report)
- [A] FR 2619140 A1 19890210 - FORMATION TRAVAUX PUBLICS CENT [FR]
- See references of WO 9010116A1
Designated contracting state (EPC)
DE GB SE
DOCDB simple family (publication)
WO 9010116 A1 19900907; EP 0471840 A1 19920226; EP 0471840 A4 19920826; KR 920700334 A 19920219
DOCDB simple family (application)
JP 9000267 W 19900228; EP 90903925 A 19900228; KR 900702339 A 19901026