Wet-type DCT clutch temperature control system based on fuzzy control and control method thereof

A temperature control system, a technology of fuzzy control, applied in the direction of temperature control using electric mode, general control system, control/regulation system, etc., can solve the problem of low temperature control accuracy of reaction delay clutch and so on

Active Publication Date: 2014-09-17
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a wet DCT clutch temperature control system based on fuzzy control in order to overcome the deficiencies of the prior art clutch oil temperature sensor's response delay and low accuracy of clutch temperature control

Method used

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  • Wet-type DCT clutch temperature control system based on fuzzy control and control method thereof
  • Wet-type DCT clutch temperature control system based on fuzzy control and control method thereof
  • Wet-type DCT clutch temperature control system based on fuzzy control and control method thereof

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Embodiment Construction

[0047] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. The embodiments described with reference to the accompanying drawings are exemplary and are only used to explain the present invention, rather than to limit the present invention.

[0048] see figure 1 , the wet DCT clutch temperature control system based on fuzzy control is placed outside the automatic transmission electronic control unit (TCU), which includes a sensor detection module, a signal processing module, and a main control module. The main control module contains a calculation module and a control module. in,

[0049] The sensor detection module is used to obtain the oil temperature of the clutch oil outlet of the wet DCT, the speed of the transmission input shaft, the speed of the driven disc of clutch 1, the speed of the driven disc of clutch 2, the pressure of clutch 1 and the pressure of clutch 2; usually, The sens...

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Abstract

The invention discloses a wet-type DCT clutch temperature control system based on fuzzy control and a control method of the wet-type DCT clutch temperature control system. The system is composed of a sensor detection module, a signal processing module and a master control module. The method comprises the steps that after the temperature of oil thrown out of an oil outlet of a wet-type DCT clutch, the rotating speed of an input shaft of a transmission, the rotating speed of a driven disk of a first clutch, the rotating speed of a driven disk of a second clutch, the pressure of the first clutch and the pressure of the second clutch are collected in real time, whether the temperature of the oil thrown out of the oil outlet of the wet-type DCT clutch is larger than or equal to a threshold is judged; if the temperature of the oil thrown out of the oil outlet of the wet-type DCT clutch is smaller than the threshold, a current constant control mode of a cooling solenoid valve is switched to; if the temperature of the oil thrown out of the oil outlet of the wet-type DCT clutch is larger than or equal to the threshold, calculated clutch temperature deviation delta Tc, clutch temperature deviation change rate d delta Tc/dt and sliding friction power P are used as input variables for fuzzy control, a three-input single-output fuzzy control mode is switched to, and the current of the cooling solenoid valve is obtained. The wet-type DCT clutch temperature control system based on fuzzy control is simple, convenient and fast to use and capable of achieving quick and accurate control over clutch temperature.

Description

technical field [0001] The invention relates to a wet DCT clutch temperature control system and control method, in particular to a wet DCT clutch temperature control system and control method based on fuzzy control. Background technique [0002] Currently, two types of transmissions are widely used in conventional motor vehicles. One is a manual transmission, which changes the transmission ratio by switching the gear meshing position in the transmission by shifting the gear lever, so as to achieve the purpose of shifting; for this kind of manual transmission, the driver needs to frequently operate the clutch pedal and change gears during driving. Rod, easy to make the driver feel tired, thus affecting the safety of driving. The other is an automatic transmission, which can automatically change the gear ratio according to the state of the vehicle, which reduces the burden on the driver and improves driving safety. At the same time, the automatic transmission can adapt to var...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/19G05B13/02
Inventor 孔慧芳段锐鲍伟张晓雪姜凯文
Owner HEFEI UNIV OF TECH
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