Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DEVICE FOR AND METHOD OF CONTROLLING VEHICLE FOR LOADING WORK
Document Type and Number:
WIPO Patent Application WO/1991/019100
Kind Code:
A1
Abstract:
A device for controlling a vehicle for loading work equipped with a plurality of hydraulic pumps (P1, P2) of a fixed capacity for loading work machine and with a torque converter (TC), in which: an engine (E) equipped with electronic control type governor (10) capable of optionally selecting output characteristics in steps is provided as means for controlling output of the engine; changeover valves (17, 18) for changing over the flow of pressure oil to the drain circuit in response to working oil pressure or electric instruction are disposed in the circuit on the downstream side of one (P1) of a plurality of hydraulic pumps (P1, P2) for the working machine; and a selection switch (15) for output characteristics, a governor controller (11) for controlling engine output characteristic selected by said switch (15), and control circuits (P1, P2, 13, 16, 17, 18) for actuating said changeover valves (17, 18) in response to electric instruction of the selection switch (15) are provided. Accordingly, engine output, hydraulic driving power, and driving power in a plurality of degrees can be set by combining cut-off conditions of the hydraulic pumps in steps in response to a selected engine output, whereby functions of the vehicle can be set according to the work load and work amount.

Inventors:
Ikari, Masanori
Application Number:
PCT/JP1991/000760
Publication Date:
December 12, 1991
Filing Date:
June 05, 1991
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KABUSHIKI KAISHA KOMATSU SEISAKUSHO KOMATSU MEC KABUSHIKI KAISHA IKARI, Masanori.
International Classes:
E02F9/20; E02F9/22; F02D11/06; F02D29/04; F04B49/00; F15B11/00; (IPC1-7): E02F9/20; F02D29/04; F04B49/00; F15B11/00; F15B11/02
Foreign References:
JPS5713889U1982-01-23
JPS5016521B11975-06-13
JPS5712886B21982-03-13
JPS5129301U1976-03-03
JPS5732089A1982-02-20
Other References:
See also references of EP 0532756A4
Download PDF: