发明名称 Front control system for construction machine and oil temperature indicator
摘要 <p>In an oil temperature detecting/calculating portion 9p, threshold values T1, T2 are set beforehand to divide a range of oil temperature into a first oil temperature range a representing the lowest level, a second oil temperature range b representing a relatively low level, and a third oil temperature range c representing a normal level. The calculating portion 9p executes an alarm control process for making the alarm lamp 14 light up continuously when the detected oil temperature is in the first oil temperature range a, making the alarm lamp 14 blink when it is in the second oil temperature range b, and making the alarm lamp 14 turn out when it is in the third oil temperature range c. This enables a front control system for a construction machine to perform front control accurately and safely even when the temperature of hydraulic oil is low. &lt;IMAGE&gt;</p>
申请公布号 EP0816579(A2) 申请公布日期 1998.01.07
申请号 EP19970110488 申请日期 1997.06.26
申请人 HITACHI CONSTRUCTION MACHINERY CO., LTD. 发明人 FUJISHIMA, KAZUO;WATANABE, HIROSHI;HAGA, MASAKAZU;NAKAGAWA, TAKASHI
分类号 E02F3/43;E02F9/20;E02F9/22;E02F9/26;(IPC1-7):E02F9/26 主分类号 E02F3/43
代理机构 代理人
主权项
地址