SPEED CHANGE CONTROL SYSTEM FOR INDUSTRIAL VEHICLE
摘要
<p>A speed change control system for an industrial vehicle includes: a speed ratio detecting unit that detects a speed ratio of speeds of an input shaft and of an output shaft of a torque converter; a torque converter speed ratio-based speed changer that shifts up or shifts down a speed stage of a transmission 3 in response to the detected speed ratio; a vehicle speed detection unit that detects a speed of the vehicle; a mode selection unit that selects any one of an L-mode and an H-mode; and a speed change control unit that permits an upshift provided that the vehicle speed is equal to or higher than a first predetermined value when the L-mode is selected whereas permits the upshift provided that the vehicle speed is higher than another predetermined value which is larger that the predetermined value when the H-mode is selected.</p>
申请公布号
EP2098759(A1)
申请公布日期
2009.09.09
申请号
EP20070832885
申请日期
2007.11.30
申请人
TCM CORPORATION;HITACHI CONSTRUCTION MACHINERY CO., LTD
发明人
HYODO, KOJI;TANAKA, TETSUJI;SAKAI, EIICHI;SUZUKI, NOBUHIRO;TAKANO, KOJI