Title:
WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE
Document Type and Number:
Japanese Patent JP2017081477
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a work vehicle that can reduce rapid reaction which is generated by restricting displacement of a valve.SOLUTION: Steering cylinders 21 and 22 in a wheel loader 1 are driven by oil pressure to change a steering angle θs of a front frame 11 relative to a rear frame 12. A pilot valve 42 is connected to a joy stick lever 24 and controls flows of oil to be supplied to the steering cylinders 21 and 22 according to a turning angle θin of the joy stick lever 24, and regulates operation equal to an angle θ4 of a deviation angle α or more of the joy stick lever 24. A force imparting portion 27 imparts auxiliary force or reactive force to operation of the joy stick lever 24 performed by an operator. A control portion 28 controls the force imparting portion 27 so that the auxiliary force is reduced or the reactive force is increased before the operation of the joy stick lever 24 is restricted by the pilot valve 42.SELECTED DRAWING: Figure 9
Inventors:
TAKENAKA YUTA
NAKABAYASHI MASANOBU
IKARI MASANORI
NAKABAYASHI MASANOBU
IKARI MASANORI
Application Number:
JP2015213788A
Publication Date:
May 18, 2017
Filing Date:
October 30, 2015
Export Citation:
Assignee:
KOMATSU MFG CO LTD
International Classes:
B62D6/00; B62D5/04; B62D5/06; B62D11/08; B62D12/00
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation