Lubricating flow control system for wet type double clutches

A wet double clutch, flow control technology, applied in gear lubrication/cooling, transmission parts, belts/chains/gears, etc., can solve problems such as friction element surface ablation, clutch failure, affecting driving safety, etc., to achieve calculation precise effect

Pending Publication Date: 2019-08-16
CHONGQING TSINGSHAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some special working conditions, such as heavy vehicle load, hill start, frequent gear shifting, etc., the friction elements of the clutch will generate a lot of heat. At this time, the friction elements must be cooled. If the coolant flow is insufficient, the Take away the heat generated by friction in time, long-term overheating of the surface of the friction plate will cause ablation of the surface of the friction element, resulting in clutch failure and affecting driving safety

Method used

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  • Lubricating flow control system for wet type double clutches
  • Lubricating flow control system for wet type double clutches
  • Lubricating flow control system for wet type double clutches

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] Such as figure 1 , figure 2 As shown, the wet dual clutch lubrication flow control system includes a transmission control unit 2 and an engine control unit 1 . Wherein, the transmission control unit is used to control the transmission 3, and communicates with the engine control unit 1 through a CAN line. The transmission control unit includes: a clutch friction element cooling control module 22 , a clutch temperature module 23 and a pressure control module 21 .

[0027] Such as Figure 2 to Figure 3 As shown, the wet dual clutch lubrication flow control system works as follows:

[0028] 1) The clutch friction element cooling control module 22 obtains the engine torque signal, the engine speed signal and the vehicle speed signal from the engine control unit 1; the clutch friction element cooling control module 22 obtains the heat temperature of the clutch generat...

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Abstract

The invention discloses a lubricating flow control system for wet type double clutches. The system comprises a transmission control unit and an engine control unit. The transmission control unit comprises a clutch friction element cooling control module, a clutch temperature module and a pressure control module. The system decides whether a pressure signal of a hydraulic system pressure is adjusted or not to increase a suppliable cooling flow by acquiring an input signal, judging a current slide friction working condition, calculating a current providable cooling flow, calculating the coolingflow needed by the current working condition and judging the needed cooling flow and the providable cooling flow. The system can reduce the current clutch temperature immediately and effectively to prevent the clutches from being ablated, so that the driving safety is improved.

Description

technical field [0001] The invention relates to the field of double clutches, in particular to a wet double clutch lubricating flow control system. Background technique [0002] In vehicle automatic transmissions, multi-plate clutches are generally used. The clutch is responsible for the key role of cutting off and transmitting power between the engine and the engine. In some special working conditions, such as heavy vehicle load, hill start, frequent gear shifting, etc., the friction elements of the clutch will generate a lot of heat. At this time, the friction elements must be cooled. If the coolant flow is insufficient, the Take away the heat generated by friction in time, long-term overheating of the surface of the friction plate will cause ablation of the surface of the friction element, resulting in clutch failure and affecting driving safety. [0003] Therefore, in the early stage of development, it is necessary to define the extreme harsh working conditions of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04
CPCF16H57/0434
Inventor 刘丽萍周勇刘苏苏银联作刘增玥刘军平
Owner CHONGQING TSINGSHAN IND
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