AMT/DCT transmission clutch torque self-adaptation calibration method

A calibration method, clutch technology, applied in belts/chains/gears, elements with teeth, climate sustainability, etc., can solve problems such as difficulty in modeling clutch torque
CN107559412AInactive Publication Date: 2018-01-09CHONGQING UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHONGQING UNIV
Publication Date
2018-01-09
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides an AMT / DCT transmission clutch torque self-adaptation calibration method. A clutch torque theoretical control model and a clutch torque calibration model are built, and the relation between the clutch torque and the position of an execution mechanism is finally built. The difficult clutch torque modeling caused by time change, nonlinearity and the like can be solved, precisecontrol over clutch torque can be achieved, and starting and gear shifting of an AMT / DCT carried vehicle are improved.
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Description

technical field

[0001] The invention relates to the field of automobile automatic transmissions. Background technique

[0002] Both AMT / DCT are improved on the basis of traditional manual gear transmissions, and both have the advantages of high transmission efficiency, good production inheritance and simple structure. Among them, the control effect of DCT can reach the level of AT, and it is the most potential new type of automatic transmission with huge market prospects.

[0003] However, during the operation of AMT / DCT, there is a dynamic relationship between the control parameters of the clutch actuator and the transmitted torque, which will vary with the use time and use environment. This brings difficulties to the torque control of the clutch, which leads to the reduction of the control performance of the AMT / DCT clutch, especially the control performance of starting and shifting. Therefore, it is very important to establish the relationship between the clutch torque ...

Claims

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