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1. (WO2015115456) PRIME MOVER CONTROL DEVICE FOR WORK VEHICLE

Pub. No.:    WO/2015/115456    International Application No.:    PCT/JP2015/052302
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Thu Jan 29 00:59:59 CET 2015
IPC: F02D 29/02
F02D 29/00
F02D 45/00
Applicants: HITACHI CONSTRUCTION MACHINERY CO., LTD.
日立建機株式会社
Inventors: AOKI, Isamu
青木 勇
HYODO, Koji
兵藤 幸次
TANAKA, Tetsuji
田中 哲二
OOMAE, Kentaro
大前 賢太郎
Title: PRIME MOVER CONTROL DEVICE FOR WORK VEHICLE
Abstract:
This prime mover control device for a work vehicle is provided with: a rotational speed control unit that controls the rotational speed of a prime mover in accordance with the amount of operation of an accelerator operation member; a temperature detection unit that detects the temperature of cooling oil that cools a brake; and a speed control unit that, when the temperature of the cooling oil detected by the temperature detection unit is higher than a predetermined temperature, limits the maximum rotational speed of the prime mover to a lower level compared to when the temperature of the cooling oil detected by the temperature detection unit is lower than the predetermined temperature. The maximum vehicle speed is limited by limiting the maximum rotational speed of the prime mover by the speed control unit.