发明名称 Shift-control method for a vehicular automatic transmission
摘要 A method for controlling a gear shift in an automatic transmission of a motor vehicle that is carried out as a deceleration shift of at least one engaging shifting element, without use of a mechanical free-wheeling condition. To increase the ride comfort, it is proposed that during the shifting sequence of the deceleration shift, a free-wheeling condition is simulated by a slip operation or by an opening of a second shift element of the automatic transmission, that is located in the power flow path, preferably using a start-up shift element of the automatic transmission.
申请公布号 US6835164(B2) 申请公布日期 2004.12.28
申请号 US20030422873 申请日期 2003.04.24
申请人 ZF FRIEDRICHSHAFEN AG 发明人 HABECK DIRK
分类号 F16H61/06;(IPC1-7):F16H61/26 主分类号 F16H61/06
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