Lubricant Technology for Dual Clutch Transmissions

Hurley, S.; Tipton, Craig D.; Cook, S. P.

doi:10.4271/2006-01-3245

Cited by 10 publications

(3 citation statements)

References 8 publications

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“…The power transmission is shunted and the torque of the engine is transferred by both clutches, till the C2 is totally separated and C1 is totally jointed, which means the shift process is completed finally [5].To realize the smoothness of the vehicle shifting process, it is necessary to ensure that in the process of shifting, the output torque of the vehicle is basically stable, which means the acceleration of the vehicle in the shifting process is essentially the same. In this paper, the dual-clutch consists of two sets of wet multi-plate clutches [6,7].…”

Section: Shifting Process Analysismentioning

confidence: 99%

Down-Shift Control for Wet Dual Clutch Transmission Based on FCMAC

2013

AMR

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In order to solve the problems existed in gearshift with wet dual clutch transmission; the down-shift control strategy is developed on the basis of analysis on gear shift process. Clutch pressure intelligent control arithmetic based on FCMAC (Fuzzy Cerebellar Model Articulation Controller) is designed to realize accuracy control of clutch pressure. The transmission control unit is designed, and the control program is written. Taking down-shift from 2 to 1 for example, down-shifting control strategy was drawn. After applied the introduced method into the experiments on both power-on and power-off downshift under different throttle positions, ideal shifting quality was achieved. The result indicated that the speed of vehicle changed gently without distinct impact. This essay verifies the validity of the proposed method of the strategy of shifting control.

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Section: Shifting Process Analysismentioning

confidence: 99%

Down-Shift Control for Wet Dual Clutch Transmission Based on FCMAC

2013

AMR

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“…It can have a means to engage and separating functions to achieve the main driven part of transferring power and movement in the same axis, its main role is to start and stop, change the transmission of the working state between the original motive machine and working machine, as well as the starting and overload control safety protection device for torque transfer size. The friction contact condition decides the on-off process of friction clutch stable, accurate and reliable operation, as well as the friction pair components with high wear resistance, long service life, good heat dissipation conditions, technical index and performance [2,4].…”

Section: Introductionmentioning

confidence: 99%

Analysis on the Influence of the Strength and Stiffness under the Contact Conditions for Friction Plate

Zhao

Wang²,

Wang

2013

KEM

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This paper mainly consider the friction plate finite element modeling frictional contact conditions between the slices of components, friction plate assembly of the strength and stiffness of the. Through modal analysis of force and its distribution in different layers of friction plate assembly friction plate, a friction plate component analysis layers, friction plate by the effect of preload on the friction plate assembly strength, and in this state analysis of the friction plate stiffness. On the contact state under different friction plate layers, different pre tightening force under stress, stiffness were compared, the effect of contact on the stiffness and friction plate component strength.

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“…The features of good heat resistant capability and friction stability, as well as smooth engagement process, make it's easy to serialize and standardize the friction pairs of transmission. Furthermore, wet-type clutch provides improved shift comfort and is more suitable for higher torque applications than a dry-type clutch system [4]. Wet-type clutches are suitably selected for high GVW applications where heat is managed with cooling and clutch experiences limited wear with lubrication [5].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of the Shift Process for Wet-Type Dual Clutch Transmission

Liao

Yin

Wang

et al. 2010

2010 International Conference on E-Product E-Service and E-Entertainment

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As a new type of automatic transmission in recent several years, dual clutch transmission (DCT) owns the advantages of both automated manual transmission (AMT) and hydraulic automatic transmission (AT), and shows a huge development potential in automatic transmission family. In this paper, a dynamic model of the shift process for a six-speed wet-type DCT is presented, the simulation model has been built using MATLAB/Simulink platform, and simulation tests of upshift and downshift processes have also been accomplished. The study provides a reliable theoretical dynamic model for further development of control strategies and algorithms for DCT.

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Lubricant Technology for Dual Clutch Transmissions

Cited by 10 publications

References 8 publications

Down-Shift Control for Wet Dual Clutch Transmission Based on FCMAC

Down-Shift Control for Wet Dual Clutch Transmission Based on FCMAC

Analysis on the Influence of the Strength and Stiffness under the Contact Conditions for Friction Plate

Modeling and Simulation of the Shift Process for Wet-Type Dual Clutch Transmission

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