A Clutch Engagement Adaptive Control Method Based on Statistical Theory

Abstract

The invention relates to a clutch combined with self-adaption control method based on a statistics principle. The clutch combined with self-adaption control method comprises the steps that at each clutch combination stage, the difference between the rotation velocity of an engine and the rotation velocity of the input shaft of a gearbox is divided to be five rotation velocity difference ranges; the time from a clutch be in contact firstly to the rotation velocity of the input shaft of the gearbox being synchronous with the rotation velocity of the engine is recorded; the percentage of the timeof the difference between the rotation velocity of the engine and the rotation velocity of the input shaft of the gearbox in each rotation velocity difference range accounting for the time from the clutch being in contact firstly to the rotation velocity of the input shaft of the gearbox being synchronous with the rotation velocity of the engine is counted; and the compensation factor of clutch combined control in the next clutch combination stage is obtained. The compensation factor of the next clutch combined control is obtained through the difference between the rotation velocity of the engine and the rotation velocity of the gearbox in each clutch combination stage, the change of clutch transmission torque feature is automatically adapted, stable and smooth clutch transmission torqueis ensured, so that the torque of the engine is matched with the clutch transmission torque, and the riding comfort of vehicle starting and gear shifting is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of clutch control, and in particular relates to a clutch combination adaptive control method based on statistical principles. Background technique [0002] In the transmission system of a car, the clutch can combine and interrupt the power transmission of the engine, so as to realize the functions of ensuring the smooth start of the car, smooth shifting and limiting the maximum torque borne by the transmission system. When the clutch is in the slippery phase and the coupling phase, the torque transmitted by the clutch is particularly affected by the displacement of the clutch. When the clutch is not engaged smoothly, the torque transmitted by the clutch changes greatly, which will cause the vehicle to vibrate and affect the starting and shifting of the vehicle. smoothness. [0003] Different clutches have different transmission torque characteristics in the slipping and combining phases. The transmission t...

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Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies in the prior art above, to provide a clutch combination adaptive control method based on statistical principles, which solves the problem of matching engine torque and clutch transmission torque, and compensates for the differences and differences in the transmission torque characteristics of different clutches. The change of the transmission torque characteristics after the clutch is worn ensures the smoothness of the vehicle starting and shifting

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