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Surface temperature model parameter calibration method for wet clutch friction plate

A wet clutch, surface temperature technology, applied in the calibration of clutch cooling power parameters, wet clutch friction plate temperature model parameter calibration field, can solve the problems of high fuel economy, can not withstand long-term friction, etc., to achieve the goal of improving work efficiency Effect

Active Publication Date: 2016-12-07
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dual-clutch automatic transmissions are divided into dry clutches and wet clutches. Dry clutches do not require external cooling oil for cooling. The fuel economy is higher than that of wet clutches, but they cannot withstand long-term friction.

Method used

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  • Surface temperature model parameter calibration method for wet clutch friction plate
  • Surface temperature model parameter calibration method for wet clutch friction plate
  • Surface temperature model parameter calibration method for wet clutch friction plate

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specific Embodiment approach

[0018] In order to further illustrate the technical solution of the present invention, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:

[0019] like figure 1 As shown, the present invention discloses a wet clutch friction plate surface temperature model parameter calibration method, which sequentially includes a heating power calculation module, a vector generation module, a vector sorting module, a vector element merging module, a matrix sorting module, and a matrix element merging module module, coordinate axis generation module and cooling power MAP generation module. The method generates the cooling power MAP and calibrates the model parameters through the obtained bench test data, and the specific process is as follows:

[0020] like figure 1 As shown, according to the clutch torque Tor(k), clutch input speed Wi(k) and clutch output speed Wo(k) obtained from the bench test at time k, input the above data...

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Abstract

The invention discloses a surface temperature model parameter calibration method for a wet clutch friction plate. The method comprises the steps of obtained rack testing data sequentially passes through a heating power calculation module, a vector generation module, a vector ranking module, a vector element combining module, a matrix ranking module, a matrix element combining module, a coordinate axis generation module and a cooling power MAP generation module to generate cooling power MAP for model parameter calibration. The method can more accurately judge the surface temperature of a wet clutch, and the wet clutch is prevented from being burnt and damaged.

Description

technical field [0001] The invention belongs to the technical field of automatic transmissions in the automobile manufacturing industry, and in particular relates to a method for calibrating temperature model parameters of friction plates of wet clutches, which is suitable for calibrating clutch cooling power parameters among surface temperature model parameters of friction plates of wet clutches. Background technique [0002] At present, dual-clutch automatic transmission has won the attention of many automobile manufacturers for its no-power-interrupted shifting and good fuel economy. Dual-clutch automatic transmissions are divided into dry clutches and wet clutches. Dry clutches do not require external cooling oil for cooling. The fuel economy is higher than that of wet clutches, but they cannot withstand long-term friction. The wet clutch has drag torque loss, but it has good heat dissipation, can withstand long-term friction and continuous starting, and is suitable for ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F2119/08
Inventor 顾强陈建勋刘振宇梁伟朋朱建波贾旭东
Owner CHINA FIRST AUTOMOBILE