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Device and method for judging AMT vehicle clutch half-bonding point

A technology of semi-engagement and clutch position, applied in transmission control, elements with teeth, belts/chains/gears, etc., can solve the problem that AMT vehicles are not smooth enough during gear shifting, and the semi-engagement of clutch is not accurate enough. Reliability, affecting AMT vehicle control and other issues, to achieve the effect of reducing fluctuation, reducing friction, and improving accuracy

Inactive Publication Date: 2008-06-04
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to factors such as clutch friction, the collected half-engagement point of the clutch is not accurate and reliable enough
This affects the control of the clutch of the AMT vehicle, making the AMT vehicle not smooth enough during gear changes

Method used

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  • Device and method for judging AMT vehicle clutch half-bonding point
  • Device and method for judging AMT vehicle clutch half-bonding point
  • Device and method for judging AMT vehicle clutch half-bonding point

Examples

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Embodiment Construction

[0027] Such as figure 1 As shown, a device for judging the clutch half-engagement point for an AMT vehicle includes a signal acquisition unit 20 and an electronic control unit 30; the electronic control unit 30 includes a data receiving module 31, a data processing module 32 and a data control module 33; The data receiving module 31 is electrically connected to the signal acquisition unit 20 , and the data control module 33 is electrically connected to the clutch motor 40 . The signal acquisition unit 20 includes an engine speed sensor 21, a transmission shaft speed sensor 22 and a clutch position sensor 23; the data receiving module 31 is used to receive the engine speed signal collected by the engine speed sensor 21 of the signal acquisition unit, the transmission shaft The first shaft speed signal of the transmission collected by the speed sensor 22 and the clutch position signal collected by the clutch position sensor 23, the data processing module 32 is used for when the ...

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PUM

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Abstract

The invention discloses a device and a method for judging AMT vehicle clutch half joint. The device comprises a signal collecting unit and an electronic control unit, wherein the signal collecting unit comprises an engine speed sensor, a speed change gear shaft speed sensor and a clutch position sensor which are respectively connected with an electronic control unit. The control unit is used for collecting a clutch position signal sent by the clutch position sensor when the engine speed is less than a first preset value after an AMT vehicle enters P shift and the absolute value of the speed change gear shaft speed difference is less than a second preset value. The invention can improve the accuracy of collected clutch half joint, thereby improving the running smoothness of the vehicle, reducing clutch wear, prolonging clutch service life, ensuring steady running of the engine and reducing engine speed fluctuation.

Description

technical field [0001] The present invention relates to an electronically controlled mechanical transmission (Automated Mechanical Transmission, referred to as AMT) vehicle, in particular to a device and method for judging the clutch half-engagement point of an AMT vehicle. Background technique [0002] For the vehicle, if the clutch is combined too hard, it will cause a shift shock and cause large fluctuations in the engine speed. Conversely, if the coupling speed of the clutch is reduced too much, the friction work will be greatly increased, thereby reducing its service life. The half-engagement point of the clutch is a key parameter for the AMT vehicle to control clutch separation and engagement. Because the AMT vehicle needs to use this parameter to control the separation and engagement of the clutch during gear shifting. At present, due to factors such as clutch friction, the collected half-engagement point of the clutch is not accurate and reliable enough. This affe...

Claims

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Application Information

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IPC IPC(8): F16H59/00F16H59/36F16H59/78F16H61/00
Inventor 任毅郭洪江孙海霞
Owner BYD CO LTD
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