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Self-adaptive method, device, control device and storage medium for clutch semi-engagement point

A half-joint, clutch technology, applied in transmission control, mechanical equipment, components with teeth, etc., can solve the problems of clutch half-joint change, reduction of vehicle ride comfort, etc., to reduce impact and improve ride comfort. Effect

Active Publication Date: 2022-05-17
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a clutch semi-engagement point self-adaptive method, device, control equipment and storage medium, aiming to solve the problems caused by the aging of the process hydraulic system used in the transmission and the wear of the transmission friction plate and hydraulic cylinder during the use of the automobile. Changes in the half-engagement point of the clutch, which may lead to a decrease in the smoothness of the car

Method used

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  • Self-adaptive method, device, control device and storage medium for clutch semi-engagement point
  • Self-adaptive method, device, control device and storage medium for clutch semi-engagement point
  • Self-adaptive method, device, control device and storage medium for clutch semi-engagement point

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Embodiment 1

[0052] figure 1 The implementation flow of the clutch half-engagement point adaptive method provided by Embodiment 1 of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0053] S10: judging whether the half-engagement point adaptive enabling condition of the clutch is satisfied.

[0054]In the embodiment of the present invention, when judging whether the half-engagement point adaptive enabling condition of the clutch is satisfied, the half-engagement point adaptive enabling condition may include that the acquired temperature sensor, pressure sensor, and solenoid valve of the transmission are all in normal condition. Working state, preferably, the self-adaptive enabling conditions of the semi-combination point include that the acquired oil temperature of the transmission is greater than a preset temperature threshold, the acquired gear of the transmis...

Embodiment 2

[0084] figure 2 It shows the specific implementation process of the method for updating the pressure value of the semi-junction point provided by the second embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0085] S20: Calculate the change rate difference between the first average speed difference change rate and the second average speed difference change rate.

[0086] In the embodiment of the present invention, when calculating the change rate difference between the first average speed difference change rate and the second average speed difference change rate, the change rate difference=second average speed difference change rate-first average speed difference Rate of change, the adaptation error caused by transmission drag during the clutch half-engagement point adaptive process is excluded through the difference of the rate of change of the t...

Embodiment 3

[0096] image 3 The implementation process of the clutch half-engagement point adaptive method provided by the third embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0097] S30: Judging whether the half-engagement point adaptive enabling condition of the clutch is satisfied, and jumping to step S31 when the half-engagement point adaptive enabling condition is met;

[0098] S31: Control the counter to perform the first counting operation according to the preset time period to obtain the first count value, calculate the first average speed difference change rate between the transmission input speed and the target clutch speed, when the first count value is greater than the preset first When counting the threshold, jump to step S32;

[0099] S32: Use the pressure value of the current half-joint point as the target pressure value to contr...

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Abstract

The present invention is applicable to the technical field of wet dual-clutch automatic transmission control, and provides a clutch half-joint point self-adaptive method, device, control equipment and storage medium. The change rate of the first average speed difference between the input speed of the transmission and the target clutch speed, and then use the pressure value of the current half-combination point as the target pressure value to control the oil filling of the target clutch. When the difference is less than the preset first pressure threshold, calculate the second average speed difference change rate between the transmission input speed and the target clutch speed, and update according to the change rate difference between the first average speed difference change rate and the second average speed difference change rate The pressure value of the half-joint point, thereby reducing the influence of the vehicle working environment and working state on the determination process of the half-joint point, thereby obtaining a more accurate pressure value of the half-joint point, and improving the smoothness of the vehicle driving process.

Description

technical field [0001] The invention belongs to the technical field of wet dual-clutch automatic transmission control, and in particular relates to an adaptive method, a device, a control device and a storage medium for a half-joint point of a clutch. Background technique [0002] The clutch half-joint point of wet dual-clutch automatic transmission plays an important role in the control of starting, creeping and shifting up and down, and directly affects the accuracy of control. It will lead to the change of the half-engagement point of the clutch, so the self-learning of the half-engagement point has a high necessity. Contents of the invention [0003] The purpose of the present invention is to provide a clutch semi-engagement point self-adaptive method, device, control equipment and storage medium, aiming to solve the problems caused by the aging of the process hydraulic system used in the transmission and the wear of the transmission friction plate and hydraulic cylind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H61/04
CPCF16H61/02F16H61/04
Inventor 武晓俊熊杰邓云飞李晓波刘学武
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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