发明名称 Gearshift controller for industrial vehicle
摘要 A gearshift controller for an industrial vehicle, includes: a speed ratio detection unit that detects a speed ratio of speeds of an input axis and of an output axis of a torque converter; a gearshift control unit that shifts up a speed stage when the detected speed ratio is equal to or more than a first predetermined value and shifts down the speed stage when the detected speed ratio is equal to or less than a second predetermined value, which is smaller than the first predetermined value; and an operation member with which a downshift to the first speed is instructed by operation thereof by an operator. When the downshift is instructed by the operation member, the gearshift control unit controls the speed stage to be kept at the first speed for a predetermined time period regardless of the speed ratio detected by the speed ratio detection unit.
申请公布号 US8137238(B2) 申请公布日期 2012.03.20
申请号 US20070516465 申请日期 2007.11.30
申请人 HYODO KOJI;TANAKA TETSUJI;SAKAI EIICHI;ISHIMARU GENICHIRO;TAKAHASHI TOMOO;YAMAZAKI YASUO;HITACHI CONSTRUCTION MACHINERY CO., LTD. 发明人 HYODO KOJI;TANAKA TETSUJI;SAKAI EIICHI;ISHIMARU GENICHIRO;TAKAHASHI TOMOO;YAMAZAKI YASUO
分类号 F16H61/48;B60K17/28;B60W10/00;F16H61/40 主分类号 F16H61/48
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