A clutch torque pressure adaptive method and system

Abstract

The invention relates to the technical field of transmission control, in particular to a clutch torque and pressure self-adaptive method and system The method comprises the following steps: detecting whether to meet the torque and pressure self-adaptive conditions or not; if YES, performing self-adaptive calculation, wherein the self-adaptive calculation comprises the steps of obtaining engine torque, obtaining current clutch grinding rate, obtaining clutch torque through the engine torque, the current clutch grinding rate and a torque and pressure gauge, dividing different torque intervals according to the engine torque, calculating a clutch torque difference proportional relationship value according to the engine torque and the clutch torque, and setting the frequency of calculation on the clutch torque difference proportional relationship value in the various torque intervals; updating the torque and pressure gauge according to self-adaptive calculation results. Through the clutch torque and pressure self-adaptive method and system provided by the invention, the accuracy and the precision of clutch torque transmission are ensured.

Description

technical field [0001] The invention relates to the technical field of transmission control, in particular to a clutch torque pressure adaptive method and system. Background technique [0002] The clutch is the hardware that transmits torque. The clutch transmits the corresponding torque by adjusting the pressure between the friction plates of the clutch, that is, there is a corresponding relationship between pressure and torque in the clutch. As the mileage of the vehicle increases, the clutch will wear and age in varying degrees, and the corresponding relationship between pressure and torque will change. Therefore, it is necessary to correct the relationship between clutch torque and pressure to achieve clutch transmission. Torque is precisely controlled. [0003] If the direct correspondence between torque and pressure is not corrected, the following situations may occur: 1. The pressure between the clutch discs is too small, resulting in ablation of the clutch. 2. The ...

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Problems solved by technology

[0003] If the direct relationship between torque and pressure is not corrected, the following situations may occur: 1. The pressure between the clutch discs is too small, resulting in ablation of the clutch

2. The pressure between the clutch discs is too high, causing the gearbox to back-drag the engine, forming a rigid connection of the transmission system. If the road surface is slightly uneven, it will be transmitted to the entire vehicle, causing an impact

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