Title:
WHEELED CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/161793
Kind Code:
A1
Abstract:
A wheel loader (1) is provided with: a differential mechanism (33) that distributes a drive torque from an engine (5) to output shafts of left and right drive wheels; a differential limitation device (51) that limits an operation of the differential mechanism (33); and a controller (72) that controls an operation of the differential limitation device (51). The controller (72) calculates a torque to be input to a front axle device (24) and to a rear axle device (26) on the basis of the overall drive torque of the wheel loader (1) calculated by a drive torque calculation unit (73), the weight of the entire wheel loader (1) detected by a boom cylinder pressure sensor (21), and an orientation of a work device (12) detected by a boom angle sensor (20) relative to a vehicle body (2). As a result, the controller (72) controls the operation of the differential limitation device (51) in accordance with a traveling state of the vehicle body (2), taking into account the torque input to the front and rear axle devices (24), (26).
Inventors:
ONISHI TOMOHIRO (JP)
Application Number:
PCT/JP2019/004014
Publication Date:
August 13, 2020
Filing Date:
February 05, 2019
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
F16H48/22
Foreign References:
| JP2010179696A | 2010-08-19 | |||
| JP2002059753A | 2002-02-26 | |||
| JP2018154253A | 2018-10-04 |
Attorney, Agent or Firm:
HIROWA PATENT FIRM (JP)
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