WORK VEHICLE - HITACHI CONSTRUCTION MACH CO

Title:

WORK VEHICLE

Document Type and Number:

WIPO Patent Application WO/2018/179113

Kind Code:

A1

Abstract:

Provided is a work vehicle that can set an auto-cruise traveling maintained-speed in accordance with work content. The present invention comprises: an auto-cruise control condition determining unit (62) that determines auto-cruise control conditions of a wheel-type hydraulic excavator (1) on the basis of an output signal of a traveling-operation-amount pressure sensor (35), an output signal of an auto-cruise switch (30), and an actual vehicle-speed of the wheel type hydraulic excavator (1); a target vehicle-speed switching condition determining unit (63) that determines a target vehicle-speed switching condition on the basis of the determination content of the auto-cruise control condition determining unit (62) and an input signal from a front-operation-amount pressure sensor (56); and a vehicle-speed deviation and correction-pressure calculator (67) that acquires a correction pressure of the traveling-operation-amount pressure sensor (35) in a direction so as to make a deviation between the actual vehicle-speed of the wheel-type hydraulic excavator and the target vehicle-speed at the time of front combined work zero.

Inventors:

KAYANE MASAHIRO (JP)
KODAKA KATSUAKI (JP)

Application Number:

PCT/JP2017/012763

Publication Date:

October 04, 2018

Filing Date:

March 28, 2017

Export Citation:

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Assignee:

HITACHI CONSTRUCTION MACH CO (JP)

International Classes:

F16H61/46; B60K31/00; E02F9/20

Foreign References:

JP2012188861A	2012-10-04
JP2008082030A	2008-04-10
JP2016008655A	2016-01-18
JP2016098985A	2016-05-30
JP2012067829A	2012-04-05
JP2012067829A	2012-04-05

Other References: