发明名称 Servo assistance device for motor vehicle variable-speed transmission
摘要 The device (10) has a differential piston (42) and a spring (44) on which servo pressure is acted, where a characteristic curve is represented by the servo pressure. The characteristic curve has regions with different slopes and/or proportionalities for hand switching force, based on the hand switching force and/or circuit phase. The differential piston and spring are arranged in the servo assistance device such that a volatile reduction of servo assistance force is realized. A piston rod (22) cooperates with a unit for switching a gear wheel change speed gear.
申请公布号 EP2068044(A3) 申请公布日期 2011.08.03
申请号 EP20080167214 申请日期 2008.10.22
申请人 ZF FRIEDRICHSHAFEN AG 发明人 FISCHER, DIETER;SPAETH, KLAUS
分类号 F16H61/30 主分类号 F16H61/30
代理机构 代理人
主权项
地址