Kisspoint self-adaptation control method and system for peristaltic working condition

Abstract

The invention discloses a kisspoint self-adaptation control method and system for a peristaltic working condition. The method comprises the steps that a current whole vehicle driving condition is obtained; when the current whole vehicle driving condition is the peristaltic working condition, a current engine static torque value is obtained; whether a difference value between the current engine static torque value and a target engine static torque value is larger than a given threshold value or not is judged, if yes, pressure self-adaption learning is conducted on a current clutch, and kisspoint pressure compensation values of all clutches are obtained; pressure of all the clutches is adjusted according to the kisspoint pressure compensation values of all the clutches. According to the kisspoint self-adaptation control method, the kisspoint self-adaptation control system under the peristaltic working condition is additionally arranged, the problems that due to the fact that a kisspoint is improperly selected, the phenomena of impacts on a vehicle, serious clutch slipping and engine flameout are caused under the peristaltic working condition are solved, the driving comfort of the whole vehicle is enhanced, and the working life of the clutches is prolonged.

Description

technical field [0001] The invention relates to the field of clutch control, in particular to a method and system for self-adaptive control of semi-joint points in creeping working conditions. Background technique [0002] The wet clutch automatic transmission is more and more favored by users due to its simple and easy-to-operate characteristics. The working principle of the wet clutch is as follows: During the clutch engagement process, the pressure oil enters the side of the clutch cylinder through the oil passage, pushing the piston to The other side moves and presses the friction plate, so that the driving side and the driven side of the clutch realize synchronous movement. During the oil filling process of the clutch, the pressure relief hole is sealed by the barrier, so there is no pressure oil leakage; while in the oil discharge stage, the barrier no longer blocks the pressure relief hole under the action of centrifugal force, and the pressure relief hole is opened, ...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and system for self-adaptive control of the semi-joint point in the creeping working condition, which solves the problem that in the prior art, when the whole vehicle is in the creeping working condition, the vehicle has a sense of impact and the clutch slips due to the inappropriate kisspoint point of the clutch. Severe and / or engine stalling problems

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