Method for operating a dual clutch transmission

A dual-clutch and transmission technology, applied in vehicle gearbox, transportation and packaging, components with teeth, etc., can solve problems such as loss, increase power consumption, reduce efficiency of dual-clutch transmission, and reduce control and adjustment costs. , the effect of reducing drag loss
CN104251304BActive Publication Date: 2019-03-29ZF FRIEDRICHSHAFEN AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZF FRIEDRICHSHAFEN AG
Publication Date
2019-03-29

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Abstract

The invention relates to a method for operating a dual-clutch transmission (1) comprising sub-transmissions (31, 32) which can each be connected to a dual-clutch via a clutch of a dual-clutch arrangement (4) In or out of the power flow of the transmission, at least two different transmission ratios can be engaged or disengaged respectively in the area of ​​the individual transmission sub-transmissions by actuating the switching elements, wherein in the operation of the double-clutch transmission basically One of the sub-transmissions (31 or 32) is connected at a time, and the other sub-transmission (32 or 31) is disconnected. According to the invention it is provided that in the area of ​​an engaged sub-transmission (31 or 32) the gear ratios are engaged simultaneously in the area of ​​an open sub-transmission (32 or 31) via the switching element (14 , 17 or 22, 25) are disengaged, as long as there is no transmission ratio conversion requirement in the dual clutch transmission (1).
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Description

technical field

[0001] The invention relates to a method for operating a dual clutch transmission. Background technique

[0002] Dual-clutch transmissions are known in practice with sub-transmissions which can be connected to or disconnected from the power flow of the dual-clutch transmission via each clutch of the dual-clutch arrangement, in the region of which the shift elements are actuated. At least two different transmission ratios can be engaged or disengaged respectively. During operation of the dual-clutch transmission, basically one sub-transmission is engaged at a time and the other sub-transmission is disconnected, at which point the transmission ratio currently provided in the dual-clutch transmission is engaged in the range of the engaged sub-transmission, In the region of the disengaged sub-transmission, however, another gear ratio is always engaged, which in the dual-clutch transmission is engaged with high probability in this region of the dual-clutch transm...

Claims

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