发明名称 |
SHIFT CONTROL METHOD FOR AN AUTOMATIC GROUP TRANSMISSION |
摘要 |
<p>A method for controlling shifts in an automated group transmission that comprises a multi-stage main transmission, a multi-stage splitter group connected upstream from the main transmission and a multi-stage range-change group connected downstream from the main transmission. The method includes the steps of disengaging the separator clutch to relieve the load of the motor; shifting range-change group to neutral and bringing the speed of the motor to the synchronous speed of the target gear; braking the main transmission and the splitter or upstream group via a transmission brake; changing the transmission ratios in the main transmission and in the splitter group; synchronizing the range-change group by partially engaging the separator clutch; engaging the desired transmission ratio in the range-change group; and simultaneously increasing the load on the drive motor and fully engaging the separator clutch.</p> |
申请公布号 |
EP2118529(B1) |
申请公布日期 |
2013.01.23 |
申请号 |
EP20080717025 |
申请日期 |
2008.02.22 |
申请人 |
ZF FRIEDRICHSHAFEN AG |
发明人 |
BADER, JOSEF;DOEBELE, BERND;MILLER, MARTIN |
分类号 |
F16H61/70 |
主分类号 |
F16H61/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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