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1. (WO2017057352) WORKING VEHICLE

Pub. No.:    WO/2017/057352    International Application No.:    PCT/JP2016/078433
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Wed Sep 28 01:59:59 CEST 2016
IPC: F16H 61/439
A01D 69/00
B60K 17/10
B62D 11/06
Applicants: YANMAR CO.,LTD.
ヤンマー株式会社
Inventors: IWAMURA Keisuke
岩村 圭将
TAKAHASHI Tsutomu
高橋 努
Title: WORKING VEHICLE
Abstract:
The present invention is provided with an engine (5) installed on a traveling machine body (2), a straight traveling system transmission path having a first stepless transmission (17) and a turning system transmission path having a second stepless transmission (13) and the output of the straight traveling system transmission path and the output of the turning system transmission path are synthesized to drive left and right travel units (3). A control unit (814) that controls the output of the straight traveling system transmission path and the output of the turning system transmission path in an interlocking manner is provided. Upon detecting that the number of revolutions of the engine (5) has become a predetermined number of revolutions (R1) or lower, the control unit (814) executes a first control that forcibly sets a swash plate (708) of the second stepless transmission (13) to a neutral state.