KR20160124528A - Apparatus and method for controlling clutch - Google Patents

Abstract

The present invention relates to a device and method for controlling a clutch. A clutch control device includes: an operation checking unit which sets a driving direction based on a clutch operation; and a clutch curve management unit which compensates for the hysteresis of the clutch in accordance with the driving direction. The present invention compensates for the hysteresis in accordance with the driving direction of the clutch other than a preset clutch curve to generate a separate clutch curve, thereby providing a uniform and maximum available torque even at the uniform clutch stroke regardless of the driving direction of the clutch. The present invention also sets a tilt for each torque to compensate for the hysteresis varied in accordance with the switching of the driving direction, thereby omitting the unnecessary process of the excessively applying or releasing the clutch, thereby controlling the clutch system more safely and precisely.

Description

[0001] APPARATUS AND METHOD FOR CONTROLLING CLUTCH [0002]

The present invention relates to an apparatus and method for controlling a clutch, and more particularly, to an apparatus and method for compensating clutch hysteresis of DCT (Dual Clutch Transmission).

Generally, a clutch system with DCT (Dual Clutch Transmission) controls the clutch actuator using a clutch curve defined in relation to the maximum transferable torque and its corresponding stroke.

That is, the clutch system determines the target stroke (hereinafter, clutch stroke) of the clutch based on the clutch curve when the target torque of the clutch (hereinafter, clutch torque) is determined.

In this way, one clutch curve is generally used to determine the clutch stroke according to the clutch torque.

However, if one clutch curve is used as described above, there is a problem that the maximum transferable torque varies depending on the direction in which the clutch is operated due to the hysteresis of the clutch even in the same clutch stroke.

In order to solve this problem, a technique for compensating for the hysteresis of the clutch is required.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an apparatus and a method for compensating for clutch hysteresis of DCT (Dual Clutch Transmission).

According to a first aspect of the present invention, there is provided a clutch control apparatus including an operation confirming unit that sets a driving direction based on an operation of a clutch; And a clutch curve management unit for compensating for hysteresis of the clutch according to the driving direction.

The operation confirming section sets the driving direction to the first direction when the clutch operates in a direction for engaging the engine and when the clutch operates in the direction for releasing the engine, Direction.

Wherein the clutch curve management section generates a first clutch curve by compensating a first hysteresis in the first direction on a predetermined clutch curve if the driving direction is the first direction, And a generator for generating a second clutch curve by compensating for a second hysteresis in the second direction on a predetermined clutch curve.

Wherein the clutch curve management section is configured to control the clutch curve management section such that when the driving direction is switched between the first direction and the second direction, And a setting unit for setting a slope for compensating for hysteresis.

The setting unit sets the magnitude of the gradient differently for each torque region.

Wherein the setting unit sets the magnitude of the inclination such that the clutch stroke is maximally changed corresponding to the third hysteresis variable between the first clutch curve and the second clutch curve if the torque region is the first region, Of the first clutch curve and the second clutch curve, and when the torque region is the second region, the magnitude of the gradient is set so that the clutch stroke is minimized corresponding to the third hysteresis variable between the first clutch curve and the second clutch curve And the torque value is set to a second value greater than the first value, and if the torque region is a third region between the first region and the second region, 3 < / RTI > value.

According to a second aspect of the present invention, there is provided a clutch control method including: setting a drive direction based on an operation of a clutch; And compensating for hysteresis of the clutch according to the driving direction.

Setting the driving direction to a first direction when the clutch operates in a direction for engagement with the engine; And setting the driving direction to the second direction when the clutch operates in the direction for releasing the engine.

Wherein the compensating step comprises: compensating a first hysteresis in the first direction to a predetermined clutch curve to generate a first clutch curve if the driving direction is the first direction; And generating a second clutch curve by compensating a second hysteresis in the second direction on a predetermined clutch curve if the driving direction is the second direction.

Wherein the compensating step comprises the steps of: when the driving direction is switched between the first direction and the second direction, changing the first direction and the second direction based on switching between the first clutch curve and the second clutch curve, And setting a slope for compensating for the hysteresis.

And the magnitude of the tilt is set differently for each torque region.

The step of setting the inclination may be such that the clutch stroke is changed to a maximum extent corresponding to the third hysteresis that varies between the first clutch curve and the second clutch curve if the torque region is the first region Setting a size to a first value; And the clutch stroke is smaller than the first value so that the clutch stroke is minimized corresponding to the third hysteresis variable between the first clutch curve and the second clutch curve if the torque region is the second region, Setting a large second value; And setting the magnitude of the gradient to a third value between the first value and the second value if the torque region is a third region between the first region and the second region. do.

Therefore, according to the apparatus and method for controlling the clutch of the present invention, since the hysteresis in accordance with the driving direction of the clutch is compensated for in addition to the reference clutch curve to be a reference to generate a separate clutch curve, It is possible to provide the same maximum torque that can be transmitted even in the clutch stroke.

Further, according to the present invention, since the inclination for compensating the varying hysteresis according to the switching of the driving direction is set for each torque region, an unnecessary process of excessively applying or releasing the clutch can be omitted, Can be controlled.

1 is a view showing an example of a general clutch curve.
2 is a schematic representation of a clutch system in accordance with an embodiment of the present invention.
3 is a diagram specifically showing a functional portion of the clutch control device shown in Fig. 2. Fig.
4 is a diagram illustrating an example of determining clutch hysteresis in accordance with the driving direction according to the embodiment of the present invention.
5 is a diagram showing an example of generating a clutch curve according to a driving direction according to an embodiment of the present invention.
6 is a diagram illustrating an example of setting a slope for compensating hysteresis for each torque region according to an embodiment of the present invention.
7 is a flowchart illustrating an operation for compensating for clutch hysteresis according to an embodiment of the present invention.

It is noted that the technical terms used herein are used only to describe specific embodiments and are not intended to limit the invention. It is also to be understood that the technical terms used herein are to be interpreted in a sense generally understood by a person skilled in the art to which the present invention belongs, Should not be construed to mean, or be interpreted in an excessively reduced sense. Further, when a technical term used herein is an erroneous technical term that does not accurately express the spirit of the present invention, it should be understood that technical terms that can be understood by a person skilled in the art are replaced. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a view showing an example of a general clutch curve.

As shown in FIG. 1, the clutch curve 10 used in a clutch system having a general DCT (Dual Clutch Transmission) is formed in a single curve shape. At this time, the x-axis represents the clutch stroke and the y-axis represents the clutch torque.

Based on this clutch curve 10, the target stroke of the clutch (hereinafter, clutch stroke) corresponding to the target torque of the clutch (hereinafter referred to as the clutch torque) is determined.

At this time, when the process of determining the clutch stroke corresponding to the clutch torque as described above is repeated, the clutch curve 10 is adjusted in real time through the learning of the clutch characteristic.

However, when the clutch operates in the direction to engage with the engine, or when the clutch operates in the direction to be released from the engine, there arises a problem that the maximum transferable torque varies even in the same clutch stroke due to the clutch hysteresis.

Hereinafter, a clutch control apparatus and method for compensating for clutch hysteresis in order to solve the above-described problems will be described in detail with reference to FIG. 2 to FIG.

2 is a schematic representation of a clutch system in accordance with an embodiment of the present invention. 3 is a diagram specifically showing a functional portion of the clutch control device shown in Fig. 2. Fig. 4 is a diagram illustrating an example of determining clutch hysteresis in accordance with the driving direction according to the embodiment of the present invention. 5 is a diagram showing an example of generating a clutch curve according to a driving direction according to an embodiment of the present invention. 6 is a diagram illustrating an example of setting a slope for compensating hysteresis for each torque region according to an embodiment of the present invention.

2, a clutch system 100 according to an embodiment of the present invention includes a DCT (Dual Clutch Transmission) 110, an engine 120, and a clutch control device 130.

The DCT 110 includes a first clutch 111a and a second clutch 111b that transmit engine power to a speed change stage composed of an odd speed change stage and an even speed change stage. The first clutch 111a and the second clutch 111b are collectively referred to as a clutch 111 for convenience of explanation in the present invention.

At this time, the clutch 111 operates in conjunction with the engine 120 to transmit the engine power or to be disengaged from the engine 120 so that the engine power is not transmitted.

The clutch control device 130 sets the drive direction based on the operation of the clutch 111 in the DCT 110 and then compensates for the hysteresis of the clutch 111 according to the drive direction to generate the clutch curve.

Hereinafter, with reference to FIG. 3, each functional section in the clutch control apparatus for compensating for the hysteresis of the clutch according to the driving direction of the clutch will be described in more detail.

The clutch control device 130 includes an operation confirmation unit 131 and a clutch curve management unit 132. [

The operation confirmation unit 131 sets the drive direction based on the operation of the clutch 111. [

That is, when the clutch 111 operates in the direction for engaging with the engine 120, the operation confirming unit 131 sets the driving direction to the first direction. The operation confirming unit 131 sets the driving direction to the second direction when the clutch 111 operates in the direction for releasing from the engine 120. [

Then, the operation confirmation unit 131 informs the clutch curve management unit 132 that the setting of the drive direction of the clutch 111 is completed.

The clutch curve management section 132 compensates for the hysteresis of the clutch in the drive direction.

To this end, the clutch curve management section 132 includes a generation section 1321 and a setting section 1322. [

The generation unit 1321 generates a clutch curve by compensating for the hysteresis generated in the driving direction based on the predetermined clutch curve.

At this time, the predetermined clutch curve may be a basic clutch curve used in the clutch system, or may be calculated by an average of previously generated clutch curves, or may be set to various curve shapes by the user.

That is, when the driving direction is the first direction, the generating unit 1321 generates the first clutch curve by compensating the first hysteresis in the first direction to the predetermined clutch curve. The generation section 1321 compensates the second hysteresis in the second direction to the predetermined clutch curve to generate the second clutch curve if the drive direction is the second direction.

More specifically, assuming that the clutch 111 is an initial state in which it is completely released from the engine 120, when the clutch 111 is engaged with the engine 120 as shown in FIG. 4 and the driving direction becomes the first direction , The clutch stroke is determined by the clutch engagement line 410a.

That is, when the drive direction is the first direction, the clutch stroke is determined by the clutch engagement line 410a other than the predetermined clutch curve 400, so that the generation portion 1321 generates the clutch engagement line 410a, Calculates the difference value from the clutch curve 400, and determines the difference as the first hysteresis in the first direction.

Thereafter, when the clutch 111 is released again from the engine 120 and the drive direction becomes the second direction, the clutch stroke is determined by the clutch release line 420a.

That is, when the clutch 111 is engaged with the engine 120, the clutch stroke is determined by the clutch release line 420a other than the predetermined clutch curve 400, so that the generation portion 1321 generates the predetermined clutch curve 400 and the clutch release line 420a, and determines the difference as a second hysteresis in the second direction.

When the first hysteresis in the first direction and the second hysteresis in the second direction are determined as described above, the generator 1321 adds a first hysteresis to the predetermined clutch curve 400 as shown in FIG. 5, Thereby generating the clutch curve 410b.

That is, the generator 1321 generates the first clutch curve 410b using Equation (1).

[Equation 1]

Posengage [k] = Posnormal [k] + Posengage / map [k]

Here, Posengage [k] is the first clutch curve 410b, Posnormal [k] is the predetermined clutch curve 400, and Posengage / map [k] is the first hysteresis.

Similarly, the generator 1321 calculates the difference of the second hysteresis in the second direction on the predetermined clutch curve 400 to generate the second clutch curve 420b.

That is, the generator 1321 generates the second clutch curve 420b using Equation (2).

&Quot; (2) "

Posdisengage [k] = Posnormal [k] - Posdisengage / map [k]

Here, Posengage [k] is the second clutch curve 420b, Posnormal [k] is the predetermined clutch curve 400, and Posdisengage / map [k] is the second hysteresis.

Thereafter, the generation unit 1321 notifies the setting unit 1322 that the generation of the clutch curve compensated for the hysteresis generated in the driving direction is completed.

Referring again to FIG. 3, the setting unit 1322 monitors whether the driving direction is switched between the first direction and the second direction.

That is, the setting unit 1322 is configured such that the driving direction is switched in the second direction in which the clutch 111 is released in the first direction in which the clutch 111 is engaged with the engine 120, or when the clutch 111 is engaged with the engine 120 And switches in a first direction coupled in a second direction to be released.

The setting unit 1322 sets a third hysteresis characteristic that varies depending on the switching of the drive direction between the first clutch curve 410b and the second clutch curve 420b when the drive direction is switched between the first direction and the second direction. Is set.

That is, the setting unit 1322 sets the magnitude of the gradient differently for the region of the clutch torque (hereinafter referred to as the torque region) as shown in Fig.

More specifically, when the torque region is the first region 500, the setting section 1322 sets the clutch stroke to the third hysteresis corresponding to the third hysteresis variable between the first clutch curve 410b and the second clutch curve 420b The magnitude of the tilt 600 is set to the first value so as to be maximally changed. At this time, the first region 500 is a low torque region having the smallest torque value among torque values transferable in the torque region.

That is, the first value is set to a value that can greatly change the clutch stroke to the third hysteresis, which varies between the first clutch curve 410b and the second clutch curve 420b, The value can vary accordingly.

When the torque region is the second region 510, the setting unit 1322 sets the clutch stroke to the maximum value corresponding to the third hysteresis variable between the first clutch curve 410b and the second clutch curve 420b The size of the slope 610 is set to a second value larger than the first value. At this time, the second region 510 is a high torque region having the largest torque value among the torque values that can be transferred in the torque region.

That is, the second value is set to a value that is larger than the first value capable of changing the clutch stroke to the smallest value corresponding to the third hysteresis that varies between the first clutch curve 410b and the second clutch curve 420b , The value may vary depending on the characteristics of the clutch.

The setting unit 1322 may set the first clutch curve 410b and the second clutch curve 420b to be the first region 500 when the torque region is the third region 520 between the first region 500 and the second region 510. [ The magnitude of the slope 620 is set to a third value between the first value and the second value so that the clutch stroke is changed to a relatively intermediate value relative to the other areas 500 and 510 corresponding to the third hysteresis variable between the first and second values . At this time, the third region 520 is a middle torque region having a torque value between the low torque region and the high torque region.

That is, the third value corresponds to the third hysteresis that varies between the first clutch curve 410b and the second clutch curve 420b, so that the clutch stroke is shifted to a relatively intermediate value relative to the other regions 500, And is set to a value between a first value and a second value that can be varied, and the value may be changed according to the characteristics of the clutch.

For example, when it is assumed that the driving direction in the first region 500 is switched from the second direction to the first direction, in the course of changing from the second clutch curve 420b to the first clutch curve 410b, A third hysteresis that varies to a relatively large difference value occurs compared to the regions 510 and 520. [

In order to compensate for the third hysteresis, which varies relatively largely in comparison with the other regions 510 and 520 in the first region 500, which is a low torque region, the setting portion 1322 sets the third hysteresis corresponding to the third hysteresis, The magnitude of the slope 600 is set to a first value that is the minimum value at which the stroke can be largely changed.

At this time, when the driving direction of the first region 500 is switched from the first direction to the second direction, the magnitude of the tilt 600 is set in the same manner as described above.

Next, assuming that the driving direction in the second region 510 is switched from the second direction to the first direction, in the process of changing from the second clutch curve 420b to the first clutch curve 410b, A third hysteresis that varies to a relatively small value is generated as compared with the first and second hysteresis loops 500 and 520.

In order to compensate for the third hysteresis that varies relatively small in comparison with the other regions 500 and 520 in the second region 510 as the high torque region, the setting unit 1322 sets the third hysteresis corresponding to the third hysteresis, The size of the slope 610 is set to a second value that is larger than the first value that can change the stroke as small as possible.

At this time, when the driving direction is switched from the first direction to the second direction in the second region 510, the size of the slope 610 is set as described above.

Finally, assuming that the driving direction is switched from the second direction to the first direction in the third region 520, since the third region 520 is an intermediate region between the low torque region and the high torque region, A third hysteresis is generated that varies to a middle value relatively to the other regions 500 and 510 in a process of changing from the curve 420b to the first clutch curve 410b. In this case, the intermediate difference value may be an average value of difference values occurring in the other regions 500 and 510, respectively.

In order to compensate for the third hysteresis, which varies to a relatively intermediate value relative to the other regions 500 and 510 in the third region 520 as the intermediate torque region, the setting portion 1322 sets the first region 500 and the second value of the second region 510. The second value of the slope 620 is a third value between the first value of the first region 510 and the second value of the second region 510. [

At this time, when the driving direction is switched from the first direction to the second direction in the third region 520, the size of the slope 620 is set as described above.

Hereinafter, an operational flow for compensating for clutch hysteresis performed in the clutch control apparatus according to the embodiment of the present invention will be described in detail with reference to FIG. Hereinafter, for convenience of description, reference will be made to the reference numerals mentioned in FIGS. 2 to 6 described above.

7, the operation confirming unit 131 of the clutch control device 130 according to the embodiment of the present invention sets the driving direction based on the operation of the clutch 111 (S100).

That is, when the clutch 111 operates in the direction for engaging with the engine 120, the operation confirming unit 131 sets the driving direction to the first direction. The operation confirming unit 131 sets the driving direction to the second direction when the clutch 111 operates in the direction for releasing from the engine 120. [

Then, the operation confirmation unit 131 informs the clutch curve management unit 132 that the setting of the drive direction of the clutch 111 is completed.

The clutch curve management section 132 compensates for the hysteresis of the clutch in the drive direction to generate the clutch curve.

That is, when the drive direction is the first direction, the clutch curve management section 132 compensates the first hysteresis in the first direction to the predetermined clutch curve to generate the first clutch curve. The clutch curve management section 132 compensates the second hysteresis in the second direction to the predetermined clutch curve to generate the second clutch curve when the drive direction is the second direction.

More specifically, the clutch curve management section 132 determines a hysteresis in accordance with the drive direction (S110) (see FIG. 4).

That is, when the drive direction is the first direction, the clutch stroke is determined by the clutch engagement line 410a other than the predetermined clutch curve 400, so that the clutch curve management section 132 controls the clutch engagement line 410a, Calculates a difference value from the set clutch curve 400, and determines this as a first hysteresis in the first direction.

Thereafter, when the clutch 111 is released again from the engine 120 and the drive direction becomes the second direction, the clutch stroke is determined by the clutch release line 420a.

That is, when the clutch 111 is engaged with the engine 120, the clutch stroke is determined by the clutch release line 420a other than the preset clutch curve 400, so that the clutch curve management unit 132 determines, Calculates the difference between the clutch release line (400) and the clutch release line (420a), and determines the difference as the second hysteresis in the second direction.

When the first hysteresis by the first direction and the second hysteresis by the second direction are determined as described above, the clutch curve management unit 132 generates the clutch curve by compensating the hysteresis for each driving direction (S120) (Fig. 5 Reference].

That is, the clutch curve management section 132 adds the first hysteresis to the predetermined clutch curve 400 to generate the first clutch curve 410b. Similarly, the generator 1321 calculates the difference of the second hysteresis in the second direction on the predetermined clutch curve 400 to generate the second clutch curve 420b.

Then, the clutch curve management unit 132 monitors whether the driving direction is switched between the first direction and the second direction (S130).

That is, the clutch curve management section 132 is switched in the second direction in which the drive direction is released in the first direction in which the clutch 111 is engaged with the engine 120, or when the clutch 111 is engaged with the engine 120 In a second direction to be released from the first direction.

When the drive direction is switched between the first direction and the second direction, the clutch curve management section 132 controls the third clutch curve 410b and the second clutch curve 420b, Set the slope to compensate for hysteresis.

That is, the setting unit 1322 sets the magnitude of the gradient differently for the clutch torque region (hereinafter referred to as torque region) (S140).

More specifically, when the torque region is the first region 500, the setting section 1322 sets the clutch stroke to the third hysteresis corresponding to the third hysteresis variable between the first clutch curve 410b and the second clutch curve 420b The magnitude of the tilt 600 is set to the first value so as to be maximally changed. At this time, the first region 500 is a low torque region having the smallest torque value among torque values transferable in the torque region.

When the torque region is the second region 510, the setting unit 1322 sets the clutch stroke to the maximum value corresponding to the third hysteresis variable between the first clutch curve 410b and the second clutch curve 420b The size of the slope 610 is set to a second value larger than the first value. At this time, the second region 510 is a high torque region having the largest torque value among the torque values that can be transferred in the torque region.

The setting unit 1322 may set the first clutch curve 410b and the second clutch curve 420b to be the first region 500 when the torque region is the third region 520 between the first region 500 and the second region 510. [ The magnitude of the slope 620 is set to a third value between the first value and the second value so that the clutch stroke is changed to a relatively intermediate value relative to the other areas 500 and 510 corresponding to the third hysteresis variable between the first and second values . At this time, the third region 520 is a middle torque region having a torque value between the low torque region and the high torque region.

As described above, the present invention compensates for the hysteresis in accordance with the driving direction of the clutch in addition to the reference clutch curve to be a standard as described above, thereby generating a separate clutch curve. Therefore, regardless of the driving direction of the clutch, Can be equally provided.

Further, according to the present invention, since the inclination for compensating the varying hysteresis according to the switching of the driving direction is set for each torque region, an unnecessary process of excessively applying or releasing the clutch can be omitted, Can be controlled.

As noted above, the functional operations and subject matter implementations described herein may be implemented in digital electronic circuitry, or may be implemented in computer software, firmware, or hardware, including the structures disclosed herein and structural equivalents thereof, And combinations of one or more of these. Implementations of the subject matter described herein may be implemented as one or more computer program products, i. E. One or more modules relating to computer program instructions encoded on a type of program storage medium for execution by, or control of, the operation of the processing system Can be implemented.

The computer-readable medium can be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of matter that affects the machine readable propagation type signal, or a combination of one or more of the foregoing.

As used herein, the term " system "or" device "encompasses all apparatus, apparatus, and machines for processing data, including, for example, a programmable processor, a computer or a multiprocessor or computer. The processing system may, in addition to the hardware, comprise code that forms an execution environment for a computer program upon request, such as, for example, code comprising a processor firmware, a protocol stack, a database management system, an operating system, .

A computer program (also known as a program, software, software application, script or code) may be written in any form of programming language, including compiled or interpreted language, a priori or procedural language, Components, subroutines, or other units suitable for use in a computer environment. A computer program does not necessarily correspond to a file in the file system. The program may be stored in a single file provided to the requested program, or in multiple interactive files (e.g., a file storing one or more modules, subprograms, or portions of code) (E.g., one or more scripts stored in a markup language document). A computer program may be deployed to run on multiple computers or on one computer, located on a single site or distributed across multiple sites and interconnected by a communications network.

On the other hand, computer readable media suitable for storing computer program instructions and data include semiconductor memory devices such as, for example, EPROM, EEPROM and flash memory devices, such as magnetic disks such as internal hard disks or external disks, Non-volatile memory, media and memory devices, including ROM and DVD-ROM disks. The processor and memory may be supplemented by, or incorporated in, special purpose logic circuits.

Implementations of the subject matter described herein may include, for example, a back-end component such as a data server, or may include a middleware component, such as an application server, or may be a web browser or a graphical user, for example a user, who may interact with an implementation of the subject- Front-end components such as client computers with interfaces, or any combination of one or more of such back-end, middleware, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication, such as, for example, a communications network.

While the specification contains a number of specific implementation details, it should be understood that they are not to be construed as limitations on the scope of any invention or claim, but rather on the description of features that may be specific to a particular embodiment of a particular invention Should be understood. Likewise, the specific features described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented in multiple embodiments, either individually or in any suitable subcombination. Further, although the features may operate in a particular combination and may be initially described as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, Or a variant of a subcombination.

It is also to be understood that although the present invention is described herein with particular sequence of operations in the drawings, it is to be understood that it is to be understood that it is to be understood that all such illustrated acts have to be performed or that such acts must be performed in their particular order or sequential order, Can not be done. In certain cases, multitasking and parallel processing may be advantageous. Also, the separation of the various system components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and systems will generally be integrated together into a single software product or packaged into multiple software products It should be understood that

As such, the present specification is not intended to limit the invention to the specific terminology presented. Thus, while the present invention has been described in detail with reference to the above examples, those skilled in the art will be able to make adaptations, modifications, and variations on these examples without departing from the scope of the present invention. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: clutch system 110: DCT (Dual Clutch Transmission)
120: engine 130: clutch control device
131: Operation confirmation unit 132: Clutch curve management unit
1321: generating unit 1322: setting unit

Claims (13)

An operation confirming unit for setting a driving direction based on the operation of the clutch; And
A clutch curve management unit for compensating for hysteresis of the clutch according to the driving direction;
And a clutch control device for controlling the clutch. The method according to claim 1,
The operation confirming unit,
When the clutch operates in a direction for engaging with the engine, sets the driving direction to the first direction,
And sets the drive direction to the second direction when the clutch operates in the direction for releasing from the engine. 3. The method of claim 2,
Wherein the clutch curve management unit comprises:
And compensating a first hysteresis in the first direction to a predetermined clutch curve to generate a first clutch curve if the driving direction is the first direction,
And a generator for generating a second clutch curve by compensating a second hysteresis in the second direction to a predetermined clutch curve if the driving direction is the second direction. The method of claim 3,
Wherein the clutch curve management unit comprises:
Wherein when the drive direction is switched between the first direction and the second direction, a third hysteresis is generated between the first clutch curve and the second clutch curve to compensate for a third hysteresis, And a setting section for setting a tilt of the clutch. 5. The method of claim 4,
Wherein,
And the magnitude of the tilt is set differently for each torque region. 6. The method of claim 5,
Wherein,
And sets the magnitude of the gradient to a first value such that the clutch stroke is maximally changed corresponding to the third hysteresis variable between the first clutch curve and the second clutch curve if the torque region is the first region ,
And the clutch stroke is smaller than the first value so that the clutch stroke is minimized corresponding to the third hysteresis variable between the first clutch curve and the second clutch curve if the torque region is the second region, Is set to a large second value,
And sets the magnitude of the gradient to a third value between the first value and the second value if the torque region is a third region between the first region and the second region. Setting a drive direction based on an operation of the clutch; And
Compensating for hysteresis of the clutch according to the driving direction;
And a clutch control device for controlling the clutch. 8. The method of claim 7,
Wherein the setting step comprises:
Setting the driving direction in a first direction when the clutch operates in a direction for engagement with an engine; And
And setting the drive direction to a second direction when the clutch operates in a direction for releasing from the engine. 9. The method of claim 8,
Wherein the compensating comprises:
Generating a first clutch curve by compensating a first hysteresis in the first direction to a predetermined clutch curve if the driving direction is the first direction; And
And compensating a second hysteresis in the second direction to a predetermined clutch curve when the drive direction is the second direction to generate a second clutch curve. 10. The method of claim 9,
Wherein the compensating comprises:
Wherein when the drive direction is switched between the first direction and the second direction, a third hysteresis is generated between the first clutch curve and the second clutch curve to compensate for a third hysteresis, Further comprising the step of setting a slope. 11. The method of claim 10,
Wherein the magnitude of the gradient is set differently for each torque region. 12. The method of claim 11,
The step of setting the slope includes:
And sets the magnitude of the slope to a first value such that the clutch stroke is maximally changed corresponding to the third hysteresis variable between the first clutch curve and the second clutch curve if the torque region is the first region step;
And the clutch stroke is smaller than the first value so that the clutch stroke is minimized corresponding to the third hysteresis variable between the first clutch curve and the second clutch curve if the torque region is the second region, Setting a large second value; And
And setting the magnitude of the slope to a third value between the first value and the second value if the torque region is a third region between the first region and the second region, Clutch control method. 13. A computer program stored on a medium for executing each step of the method of any one of claims 7 to 12.

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