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Clutch temperature control method and system for automatic wet-type double-clutch gearbox

A technology for wet dual clutches and automatic transmissions, which is applied to transmission parts, belts/chains/gears, mechanical equipment, etc., and can solve problems such as the inability to timely and accurately determine whether the clutch temperature has reached the conditions of the start-up temperature protection mechanism

Active Publication Date: 2015-12-16
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the outlet temperature of the cooling oil is affected by the inlet temperature of the clutch cooling oil, and the outlet temperature of the cooling oil requires a certain response time, this method cannot timely and accurately judge whether the clutch temperature has reached the condition of the start-up temperature protection mechanism

Method used

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  • Clutch temperature control method and system for automatic wet-type double-clutch gearbox
  • Clutch temperature control method and system for automatic wet-type double-clutch gearbox
  • Clutch temperature control method and system for automatic wet-type double-clutch gearbox

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Embodiment Construction

[0049] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0050] The clutch of the wet double-clutch automatic transmission according to the present invention comprises: a first clutch and a second clutch, the clutch cooling oil flows through the first clutch joint surface groove from the cooling oil inlet, and then flows through the second clutch joint surface groove , and finally flows back to the oil pan from the cooling oil outlet. The first clutch includes a first clutch driving disc and a first clutch driven disc, and the second clutch includes a second clutch driving disc and a second cl...

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Abstract

The invention provides a clutch temperature protection control method and system for an automatic wet-type double-clutch gearbox. The signals of the conveying torque of a clutch, the rotating speed of a clutch driving disk, the rotating speed of a clutch driven disk, the oil temperature of a gearbox body and the pressure of clutches are used for calculating to obtain the temperature of the clutches, and whether a clutch temperature protection mechanism is started or not is judged according to the calculated and obtained temperatures of the clutches, so that the ablation of the clutches due to too high temperatures is avoided, and the service lives of the clutches and the gearbox body can be prolonged easily.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions for automobiles, in particular to a clutch temperature control method and system for a wet dual-clutch automatic transmission. Background technique [0002] Wet dual clutch automatic transmission contains two input shafts, one input shaft controls the odd gears and the other input shaft controls the even gears. When changing gears, one clutch de-energizes the gears that are already engaged while the other clutch pre-engages The gears get powered. The continuous transmission of power is realized through the alternate work of the two clutches. During the alternate process of the two clutches, by controlling the torque and slip friction transmitted by the two clutches, the impact can be reduced, and the smoothness and comfort of gear shifting can be improved. When the clutch transmits a large torque and slips for a long time, the temperature of the clutch will rise due to the large a...

Claims

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Application Information

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IPC IPC(8): F16H57/04
CPCF16H57/0412
Inventor 朱桂庆
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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