Title:
作業車両および作業車両の制御方法
Document Type and Number:
Japanese Patent JP6578186
Kind Code:
B2
Abstract:
Steering cylinders (21 and 22) in a wheel loader (1) are driven hydraulically and change the steering angle (¸s) of a front frame (11) with respect to rear frame (12). A pilot valve (42) is linked to a joystick lever (24) and controls the flow of fluid supplied to the steering cylinders (21 and 22) according to the rotational angle (¸in) of the joystick lever (24), and restricts operation of the joystick lever (24) over an angle (¸4) of a deviation angle (±). A force imparting component (27) imparts an assist force or counterforce to operation of the joystick lever (24) by the operator. A controller (28) controls the force imparting component (27) so as to decrease the assist force or increase the counterforce before the operation of the joystick lever (24) is restricted by the pilot valve (42).
Inventors:
Yuta Takenaka
Masanobu Nakabayashi
Masanori Ikari
Masanobu Nakabayashi
Masanori Ikari
Application Number:
JP2015213788A
Publication Date:
September 18, 2019
Filing Date:
October 30, 2015
Export Citation:
Assignee:
KOMATSU LTD.
International Classes:
B62D6/00; B62D5/04; B62D5/06; B62D11/08; B62D12/00
Domestic Patent References:
| JP11105723A | ||||
| JP4059483A | ||||
| JP2002331944A | ||||
| JP2015127164A | ||||
| JP2068269U |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation