发明名称 Method for the operation of a drivetrain
摘要 A method for operating a motor vehicle drivetrain with at least an automatic transmission and a drive motor. The automatic transmission includes at least five shift elements to transmit torque and/or power. In each of the forward and reverse gears, at least three shift elements are engaged and the remaining shift elements are disengaged. Two consecutive gearshifts are carried out through selection of the five shift elements. During a first gearshift, implemented as a multiple gearshift, a subsequent second gearshift, implemented as either a single or multiple gearshift, is prepared. During the first gearshift, a first shift element is disengaged, a second shift element is engaged, a third shift element is prepared for disengagement in a subsequent second gearshift and a fourth shift element is prepared for engagement. Further, during the first gearshift and the subsequent second gearshift, a fifth shift element is retained in at least a substantially engaged state.
申请公布号 US2007287585(A1) 申请公布日期 2007.12.13
申请号 US20070811427 申请日期 2007.06.07
申请人 ZF FRIEDRICHSHAFEN AG 发明人 STEINHAUSER KLAUS;POPP CHRISTIAN
分类号 B60W10/04 主分类号 B60W10/04
代理机构 代理人
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