Apparatus and method for controlling vehicle clutch
A clutch and controller technology, applied in the direction of clutch, transmission control, components with teeth, etc., can solve the problems of reducing clutch durability, reducing fuel efficiency, etc., to achieve the effect of improving fuel efficiency, reducing frequency, and improving performance
Active Publication Date: 2017-01-04
HYUNDAI MOTOR CO LTD +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0008] However, micro-slip control results in continuous small slip of the clutch, which may reduce the durability of the clutch
Additionally, fuel efficiency may be reduced due to the need to continuously control engine speed (PRM) greater than 30 revolutions per minute (RPM)
Method used
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[0027] Exemplary embodiments of the present inventive concept will be described in detail with reference to the accompanying drawings.
[0028] The method for controlling a vehicle clutch according to the present disclosure includes a driving determining step (S10), a learning step (S20), a calculating step (S30) and a controlling step (S40).
[0029] refer to figure 2 , in a state where the gear is coupled to the clutch, it is determined whether the vehicle moves in the driving determination step (S10).
[0030] For example, the methods of the present disclosure can be applied to figure 1 The automated manual transmission of a conventional dual clutch transmission (DCT) vehicle. The DCT includes an engaging side clutch and a releasing side clutch as a pair, and configures gears with gears to provide a driving speed of the vehicle.
[0031] In the case of DCT, after the shifting of the target gear is completed, the driving determination step ( S10 ) may be performed. For ...
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A method and an apparatus for controlling a clutch of a vehicle include determining whether a vehicle is moving under a condition in which a gearshift is coupled to the clutch. A clutch torque is learned in which the clutch is maintained in a micro-slip state by decreasing a target clutch torque for a corresponding gear level when it is determined that the vehicle is moving under the condition in which the gearshift is coupled to the clutch. Learning reliability is calculated by reflecting a difference between an engine torque and clutch torque. The clutch is maintained in the micro-slip state for the clutch torque learning or converting the clutch into a lock-up state, depending on a learning reliability level.
Description
technical field [0001] The present disclosure generally relates to vehicle clutch control techniques. More particularly, the present disclosure relates to an apparatus and method for controlling a clutch of a vehicle, which controls the frequency of clutch torque learning by micro-slip control to ensure the performance of learning, and prevents durability and fuel efficiency of the clutch deterioration of both. Background technique [0002] An automated manual transmission is a system for automatically controlling a manual transmission. Unlike automatic transmissions, which use torque converters and wet multi-plate clutches, automated manual transmissions use dry clutches to transfer engine torque. [0003] In particular, according to dry clutches, clutch transmission torque varies due to various factors ranging from element error, wear due to wearing, thermal deformation due to high temperature, to changes in disk friction coefficient. Therefore, it is difficult to estim...
Claims
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IPC IPC(8): F16D48/06
CPCF16D48/06F16D2500/1107F16D2500/10412F16D2500/30404F16D2500/30406F16D2500/30412F16D2500/30415F16D2500/30421F16D2500/30426F16D2500/3065F16D2500/50206F16H61/688F16H63/46F16H2059/465F16H2061/0087F16H2061/0459B60W10/02B60W10/06B60W10/113B60W2510/0275B60W2510/0657B60W2510/1005B60W2710/025F16D2500/5026
Inventor 李浩荣
Owner HYUNDAI MOTOR CO LTD