发明名称 Use of torque converter pump clutch to eliminate vibration jolt in a vehicle transmission
摘要 The present invention is a method of engaging a drive gear in a vehicle transmission having a torque converter that reduces the sudden vibration jolt that often accompanies engagement of a drive gear from a neutral position, such as Park or Neutral. The method includes sensing brake pedal depression, detecting shifting from a neutral gear to a drive gear, disengaging a pump clutch in the torque converter, with the pump clutch connecting a pump in the torque converter with a torsional input, such as from an engine, into the torque converter, and gradually engaging the pump clutch, with the gradual engagement occurring after a predetermined period of time after said gear lever shift movement has stopped. Also disclosed is a system that enables operation of the method.
申请公布号 US2008312798(A1) 申请公布日期 2008.12.18
申请号 US20080157691 申请日期 2008.06.12
申请人 LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG 发明人 WHITMER JEREMY
分类号 G06F17/00 主分类号 G06F17/00
代理机构 代理人
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