KR100836916B1 - Method and apparatus for learning an initial hydraulic pressure at predetermined turbine torque zone in upshift control - Google Patents

Abstract

The present invention relates to an initial hydraulic pressure learning method and apparatus in a turbine torque range set during upshift control of an automatic transmission.

The present invention comprises the steps of determining whether an upshift condition is satisfied; Calculating turbine torque; Initiating up shift control; Detecting an actual shift start point; Calculating an actual torque phase time T _{tp, real} ; Determining whether an upshift learning condition of the set turbine torque range is satisfied; Calculating a first forced correction amount (ΔD _AL ) _TQ4 , which is a forced correction amount, in the set turbine torque region when the upshift condition of the set turbine torque region is satisfied; Calculating a duty workload of the first duty workload ((D _{AL) new4)} in the turbine area set torque using the first force correction amount ((ΔD _{AL) TQ4);} And learning the first duty learning amount (D _AL ) _new4 .

Upshift, talk phase time, learning control

Description

METHOD AND APPARATUS FOR LEARNING AN INITIAL HYDRAULIC PRESSURE AT PREDETERMINED TURBINE TORQUE ZONE IN UPSHIFT CONTROL}

1 is a block diagram illustrating an initial hydraulic pressure learning device in a turbine torque region set during upshift control according to an exemplary embodiment of the present invention.

2 is a flowchart illustrating an initial hydraulic pressure learning method in a turbine torque region set during upshift control according to an exemplary embodiment of the present invention.

3 is a flowchart illustrating a method of calculating a first forced correction amount by an initial hydraulic pressure learning method in a turbine torque region set during upshift control according to an exemplary embodiment of the present invention.

4 is a flowchart illustrating a method of calculating a first duty learning amount by an initial hydraulic learning method in a turbine torque region set during upshift control according to an exemplary embodiment of the present invention.

FIG. 5 is a graph illustrating an example of a time limit set as a function of turbine torque and vehicle speed in an initial hydraulic learning method in a turbine torque range set during upshift control according to an exemplary embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: Throttle opening degree detector 20: Vehicle speed detector

30 turbine speed detector 40 transmission control unit

50: actuator 60: automatic transmission

 The present invention relates to an automatic transmission, and more particularly, to an initial hydraulic pressure learning method and apparatus in a turbine torque range set during upshift control of an automatic transmission.

In general, the automatic transmission extracts an arbitrary target gear shift stage from a shift pattern set according to the driving vehicle speed and the opening degree of the throttle valve, and then operates various operating elements of the gear shift mechanism through hydraulic duty control to shift the gear to the target gear shift stage. By making it automatic, it provides convenience of operation.

Conventionally, when a shift request time of upshift in response to a change in the vehicle speed and the throttle valve opening degree is detected, a transmission control unit (TCU) for controlling the automatic transmission starts solenoid valve control in the automatic transmission (shift start point). Upshift shifting).

When the solenoid valve control is started, the hydraulic pressure starts to be released from the off-going frictional element and the hydraulic pressure starts to be supplied to the on-coming element. Up to), which is a delay time that cannot be used for actual shifting.

And the actual shift is the actual shift period from this SB point to the point at which the disengagement of the release side friction element and engagement of the engagement side friction element are completed (referred to as shift point SF). This occurs during the shifting period (often called the inertia phase).

Although the section from the shift control start time point (SS point) of the TCU to the SB point is described as being divided into a preparation phase and a torque phase, hereinafter, collectively referred to as a torque phase Let's do it.

When the above-described delay time (ie, torque phase period) is long, an actual shifting period (inertia phase) may be shortened and shift shock may occur.

This delay period is learned at the time of shifting, and in the later upshift, the upshift is controlled based on the learned delay time. By the way, according to the prior art, the learning of this delay time has not been optimized for the engine operating state such as engine torque.

That is, when the engine torque is large, it is necessary to lengthen the torque phase to some extent to secure the feeling of shifting, but the shifting feeling may be sacrificed or the shifting shock may be generated due to the short learning wind. On the contrary, when the engine torque is small, it is necessary to shorten the torque phase time in order to obtain a quick response, but the time required for shifting becomes longer than necessary because it is learned at a large value for high torque.

That is, if the above-described delay time can be optimized for engine torque, this further reduces the shift shock of the upshift when the engine is operated at high torque, and increases the upshift shift when the engine is operated at low torque. It will save you time.

On the other hand, since the shift characteristics vary depending on the turbine torque, it is necessary to change the shift control by dividing the area according to the turbine torque.

In addition, according to the prior art, the learning control was carried out at the turbine rotational change rate at the set target turbine rotational rate. However, in this case, there is a problem in that the learning stability is poor because the actual turbine rotation rate is highly variable by the engine torque reduction control.

In particular, in a region where the turbine torque is high, the learning stability may be deteriorated because the torque variability is large.

The present invention has been invented to solve the above problems, and its object is to learn the optimized torque phase time in the turbine torque range (especially the region where the turbine torque is high) during upshift shifting, It is to provide an initial hydraulic learning method and apparatus in the turbine torque range set in the up shift control that can perform the up shift on the basis.

In order to achieve the above object, the initial hydraulic learning method in the turbine torque region set during the upshift control according to an embodiment of the present invention includes: determining whether an upshift condition is satisfied; Calculating turbine torque; Initiating up-shift control; Detecting an actual shift start point; Calculating an actual torque phase time T _{tp, real} ; Determining whether an upshift learning condition of the set turbine torque range is satisfied; Calculating a first forced correction amount (ΔD _AL ) _TQ4 , which is a forced correction amount, in the set turbine torque region when the upshift condition of the set turbine torque region is satisfied; Calculating a duty workload of the first duty workload ((D _{AL) new4)} in the turbine area set torque using the first force correction amount ((ΔD _{AL) TQ4);} And learning the first duty learning amount (D _AL ) _new4 .

The calculating of the first forced correction amount (ΔD _AL ) _TQ4 may include: calculating a torque phase delay time (T _DA ) _L ; And determining the first forced correction amount (ΔD _AL ) _TQ4 based on the torque phase delay time (T _DA ) _L.

The torque phase delay time ((T _{DA) L)} by using the actual torque phase time (T _{tp, real)} and the reference torque phase time _{(T tp, reference) (T} DA) L = T tp, real - T tp Can be calculated with the value of _{, reference} .

The first forced correction amount (ΔD _AL ) _TQ4 may be determined by dividing into three cases according to the torque phase delay time (T _DA ) _L.

If the torque phase delay time (T _DA ) _L is greater than or equal to the first limit time T ₁ and less than the second limit time T ₂ , the first forced correction amount (ΔD _AL ) _TQ4 is 0.78%. Can be.

If the torque phase delay time (T _DA ) _L is greater than the second limit time T ₂ or less than the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 is 1.17%. Can be.

If the torque phase delay time (T _DA ) _L is _greater than the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 may be 1.56%.

Calculating a first duty workload ((D _{AL) new4)} comprises: defining a first duty workload ((D _{AL) new4); Comparing} the first duty learning amount (D _AL ) _new4 with a preset learning limit amount (D _AL ) _lim4 ; Comprise; and ten thousand and one storing the first duty workload if ((D _{AL) new4)} is less than the previously set learning hangyeryang ((D _{AL) lim4),} the first duty workload ((D _{AL) new4)} Can be.

The first duty workload ((D _{AL) new4) is, (D AL) new4 = (} D AL) old4 + (ΔD AL) can be defined by the formula _{TQ3 TQ4} + (ΔD _AL). Here, (D _AL ) _old4 is a first duty learning amount previously learned in the set turbine torque region, and (ΔD _AL ) _TQ3 is a second forced correction amount which is a compulsory correction amount in an area less than the set turbine torque.

If the first duty workload ((D _{AL) new4)} wherein when the preset learning hangyeryang ((D _{AL) lim4)} above, wherein the first duty workload ((D _{AL) new4)} and set the duty ratio of the area under the turbine torque Comparing a second duty learning amount (D _AL ) _{new3 that} is a learning _amount ; And if the first duty learning amount (D _AL ) _new4 exceeds the second duty learning amount (D _AL ) _new3 ), the first duty learning amount (D _AL ) _new4 is (D _AL ) _new4 = (D _AL ) calculating from the formula of _lim4 ; may further include.

If the first duty workload ((D _{AL) new4)} the second duty workload ((D _{AL) new3)} or less when the first duty workload ((D _{AL) new4)} is (D _{AL) new4} = (D _AL ) can be calculated _using the expression _new3 .

The upshift learning condition of the set turbine torque range may be satisfied when the turbine torque is 70% or more and a negative value of the duty change rate is detected during the actual torque phase.

An initial hydraulic pressure learning device in a turbine torque region set during upshift control according to an embodiment of the present invention includes: a throttle opening degree detector for detecting an throttle opening amount of an engine; A vehicle speed detector for detecting a speed of the vehicle; A turbine speed detector for detecting a turbine speed of the automatic transmission; And a transmission control unit for controlling the up shift in the set turbine torque region of the automatic transmission based on the signals of the throttle opening degree detector, the vehicle speed detector, and the turbine speed detector, wherein the transmission control unit is configured to control the upshift condition. Determining whether it is satisfied; Calculating turbine torque; Initiating up shift control; Detecting an actual shift start point; Calculating an actual torque phase time T _{tp, real} ; Determining whether an upshift learning condition of the set turbine torque range is satisfied; Calculating a first forced correction amount (ΔD _AL ) _TQ4 , which is a forced correction amount, in the set turbine torque region when the upshift condition of the set turbine torque region is satisfied; Calculating a duty workload of the first duty workload ((D _{AL) new4)} in the turbine area set torque using the first force correction amount ((ΔD _{AL) TQ4);} And learning the first duty learning amount (D _AL ) _new4 ). A series of instructions for performing the initial hydraulic pressure learning method in the turbine torque range set during the upshift control may be performed.

The calculating of the first forced correction amount (ΔD _AL ) _TQ4 may include: calculating a torque phase delay time (T _DA ) _L ; And determining the first forced correction amount (ΔD _AL ) _TQ4 based on the torque phase delay time (T _DA ) _L.

The torque phase delay time ((T _{DA) L)} by using the actual torque phase time (T _{tp, real)} and the reference torque phase time _{(T tp, reference) (T} DA) L = T tp, real - T tp It can be calculated by the value of _reference .

The first forced correction amount (ΔD _AL ) _TQ4 may be determined by dividing into three cases according to the torque phase delay time (T _DA ) _L.

If the torque phase delay time (T _DA ) _L is greater than or equal to the first limit time T ₁ and less than the second limit time T ₂ , the first forced correction amount (ΔD _AL ) _TQ4 is 0.78%. Can be.

If the torque phase delay time (T _DA ) _L is greater than the second limit time T ₂ or less than the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 is 1.17%. Can be.

If the torque phase delay time (T _DA ) _L is _greater than the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 may be 1.56%.

Calculating the first duty workload ((D _{AL) new4)} comprises: defining a first duty workload ((D _{AL) new4); Comparing} the first duty learning amount (D _AL ) _new4 with a preset learning limit amount (D _AL ) _lim4 ; Comprise; and ten thousand and one storing the first duty workload if ((D _{AL) new4)} is less than the previously set learning hangyeryang ((D _{AL) lim4),} the first duty workload ((D _{AL) new4)} Can be.

The first duty workload ((D _{AL) new4) is, (D AL) new4 = (} D AL) old4 + (ΔD AL) can be defined by the formula _{TQ3 TQ4} + (ΔD _AL). Here, (D _AL ) _old4 is a first duty learning amount previously learned in the set turbine torque region, and (ΔD _AL ) _TQ3 is a second forced correction amount which is a compulsory correction amount in an area less than the set turbine torque.

If the first duty workload ((D _{AL) new4)} wherein when the preset learning hangyeryang ((D _{AL) lim4)} above, wherein the first duty workload ((D _{AL) new4)} and set the duty ratio of the area under the turbine torque Comparing a second duty learning amount (D _AL ) _{new3 that} is a learning _amount ; And if the first duty learning amount (D _AL ) _new4 exceeds the second duty learning amount (D _AL ) _new3 ), the first duty learning amount (D _AL ) _new4 is (D _AL ) _new4 = (D _AL ) calculating from the formula of _lim4 ; may further include.

If the first duty workload ((D _{AL) new4)} the second duty workload ((D _{AL) new3)} or less when the first duty workload ((D _{AL) new4)} is (D _{AL) new4} = (D _AL ) can be calculated with the expression _new3 .

The upshift learning condition of the set turbine torque range may be satisfied when the turbine torque is 70% or more and a negative value of the duty change rate is detected during the actual torque phase.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating an initial hydraulic pressure learning device in a turbine torque region set during upshift control according to an exemplary embodiment of the present invention.

As shown in FIG. 1, the initial hydraulic pressure learning device in the turbine torque region set during the upshift control according to the embodiment of the present invention is connected to the engine 70 and controls the upshift of the automatic transmission 60 provided in the vehicle. It is an initial hydraulic learning device in the pre-set turbine torque area (especially the area where the turbine torque is high).

The initial hydraulic pressure learning device in the turbine torque range set during the upshift control according to the embodiment of the present invention includes a throttle opening degree detector 10, a vehicle speed detector 20, a turbine speed detector 30, and a transmission control unit 40. (transmission control unit; TCU) and actuator 50.

The throttle opening degree detector 10 detects a change in the opening degree of the throttle valve which is operated by the operation degree of the accelerator pedal, and transmits a signal thereof to the transmission control unit 40.

The vehicle speed detector 20 detects a speed of the vehicle and transmits a signal thereof to the transmission control unit 40.

The turbine speed detector 30 detects the current turbine speed operating at the input torque of the transmission from the angular displacement of the crankshaft and transmits a signal thereto to the transmission control unit 40.

The transmission control unit 40 may be implemented with one or more microprocessors operated by a set program. The set program may be configured to perform an initial hydraulic learning method in a turbine torque range set during upshift control according to an embodiment of the present invention described below. It may include a series of instructions to perform.

The transmission control unit 40 generates a signal for controlling the automatic transmission 60 based on the detection signals of the respective detectors 10, 20, 30.

The actuator 50 receives the signal from the transmission control unit 40 to control the automatic transmission 60.

The actuator 50 may be a solenoid valve for controlling the flow of hydraulic pressure in the automatic transmission 60.

Hereinafter, the initial hydraulic pressure learning method in the turbine torque region set during the upshift control according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 2 to 4.

2 is a flowchart illustrating an initial hydraulic pressure learning method in a turbine torque region set during upshift control according to an embodiment of the present invention, and FIG. 3 is an initial hydraulic pressure in a turbine torque region set during upshift control according to an embodiment of the present invention. 4 is a flowchart illustrating a method of calculating a first forced correction amount by a learning method, and FIG. 4 illustrates a method of calculating a first duty learning amount by an initial hydraulic learning method in a turbine torque region set during upshift control according to an embodiment of the present invention. Flow chart showing how.

First, the transmission control unit 40 satisfies the upshift condition of the automatic transmission 60 based on the throttle valve opening amount detected by the throttle opening degree detector 10 and the vehicle speed detected by the vehicle speed detector 20. It is determined whether or not (S100).

If the upshift condition is not satisfied, the initial hydraulic pressure learning method is terminated in the turbine torque range set during the upshift control according to the embodiment of the present invention.

If the upshift condition is satisfied, the transmission control unit 40 calculates the turbine torque (S110). The turbine torque may be calculated by multiplying the engine torque by the torque ratio of the torque converter.

In addition, the transmission control unit 40 starts the upshift control of the automatic transmission 60 by starting the drive of the actuator 50 (S120), whereby the actual transmission start time of the automatic transmission 60 (shift begin point) is detected (S130).

For example, the actual speed change start time may be detected based on a change in turbine speed detected by the turbine speed detector 30.

The transmission control unit 40 calculates the actual torque phase time T _{tp, real} from the up shift start point (SS point) to the up shift actual shift start point (SB point) of the automatic transmission 60 ( S140). The actual torque phase time (T _{tp , real} ) is T _{tp , rea} = T (SB) -T (SS).

Thereafter, the transmission control unit 40 determines whether the upshift learning condition of the turbine torque region set based on the turbine torque and the duty change rate is satisfied (S150).

The set turbine torque region may be a region where turbine torque is high (region where turbine torque is 70% or more) for stability of learning.

In addition, the upshift learning condition of the set turbine torque range can be any condition deemed desirable by those skilled in the art.

For example, the upshift learning condition of the set turbine torque range may be satisfied when the turbine torque is 70% or more and a negative value of the duty change rate is detected during the actual torque phase.

If the upshift learning condition of the set turbine torque region is satisfied, the transmission control unit 40 calculates a first forced correction amount (ΔD _AL ) _{TQ4 which} is a forced correction amount of the set turbine torque region (S160).

As shown in FIG. 3, in step S160 of calculating the first forced correction amount (ΔD _AL ) _TQ4 , the transmission control unit 40 calculates the torque phase delay time (T _DA ) _L. (S200). The torque phase delay time ((T _{DA) L)} by using the actual torque phase time (T _{tp, real)} and the reference torque phase time _{(T tp, reference) (T} DA) L = T tp, real - T tp Calculated by the value of _{, reference} . The reference torque phase time (T _{tp, reference} ) may be any value determined by those skilled in the art to be preferable. For example, the reference torque phase time T _{tp, reference} may be 688 ms.

Thereafter, the transmission control unit 40 compares the torque phase delay time (T _DA ) _L with the first and second limit times T ₁ and T ₂ (S210). If said torque phase delay time ((T _{DA) L)} is the first threshold time (T ₁₎ greater than the second threshold time (T _2), the first force correction amount is less than ((ΔD _{AL) TQ4)} has a first correction amount It is determined as ((D ₁ ) _TQ ) (S220). The first correction amount (D ₁ ) _TQ may be 0.78%.

If the torque phase delay time (T _DA ) _L exceeds the second limit time T ₂ , the transmission control unit 40 sets the torque phase delay time (T _DA ) _L to the second, It compares with the 3 limit time (T ₂ , T ₃ ) (S230). If the torque phase delay time (T _DA ) _L is greater than or equal to the second limit time T ₂ and less than or equal to the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 is a second correction amount. It is determined as ((D ₂ ) _TQ ) (S240). The second correction amount (D ₂ ) _TQ may be 1.17%.

If the torque phase delay time (T _DA ) _L exceeds the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 is _equal to the third correction amount (D ₃ ) _TQ . Determine (S250).

The third correction amount (D ₃ ) _TQ may be 1.56%.

In addition, the first, second, and third correction value _{((D 1) TQ, (} D 2) TQ, (D 3) TQ) can be to any value it is determined that one of ordinary skill in the art are preferred.

Meanwhile, the first, second and third limit times T ₁ , T ₂ , T ₃ ) can also be set to any value judged by those skilled in the art to be preferable. For example, the first limit time T ₁ is 0 ms, and the second limit time T ₂ is 32 ms. The third limit time T ₂ may be 64 ms.

After calculating the first forced correction amount (ΔD _AL ) _{TQ4 as} described above, the transmission control unit 40 calculates the first duty learning amount (D _AL ) _{new4 which} is the duty learning amount of the set turbine torque region. (S170).

As shown in FIG. 4, in step S170 of calculating the first duty learning amount (D _AL ) _new4 , the transmission control unit 40 first performs the first duty learning amount (D _AL ) _new4 . Define (S300). The first duty workload ((D _{AL) new4)} is defined as the expression of _{TQ4 (D AL) new4 = (} D AL) old4 + (ΔD AL) TQ3 + (ΔD AL). Here, (D _AL ) _old4 is a first duty learning amount previously learned in the set turbine torque region, (ΔD _AL ) _TQ3 is a second forced correction amount which is a compulsory correction amount in a region less than the set turbine torque.

On the other hand, the second forced correction amount (ΔD _AL ) _TQ3 is the same as the method of calculating the forced correction amount according to the initial hydraulic pressure learning method during the normal upshift. That is, as shown in FIG. 5, the threshold time is obtained based on the vehicle speed and the turbine torque, and the second forced correction amount (ΔD _AL ) _TQ3 corresponding to the threshold time is calculated. Such a method will be apparent to those skilled in the art, and thus detailed description thereof will be omitted.

After defining the first duty learning amount (D _AL ) _new4 , the transmission control unit 40 _compares the first duty learning amount (D _AL ) _new4 and the preset learning limit amount (D _AL ) _lim4 . (S310). The learning limit amount (D _AL ) _lim4 may be any value determined by those skilled in the art to be preferable. Ten thousand and one stores the first duty workload ((D _{AL) new4)} is less than the learning hangyeryang ((D _{AL) lim4),} the transmission control unit 40 of the first duty workload ((D _{AL) new4)} (S350).

Ten thousand and one of the first duty workload ((D _{AL) new4)} is not less than the learning hangyeryang ((D _{AL) lim4),} the first duty workload ((D _{AL) new4)} and duty workload of a set turbine torque is less than the area Compare the 2 duty learning amount (D _AL ) _new3 (S320). The second duty learning amount (D _AL ) _new3 is calculated by the formula (D _AL ) _new3 = (D _AL ) _old3 + (ΔD _AL ) _TQ3 . Here, (D _AL ) _old3 is a second duty learning amount previously learned in the region less than the set turbine torque.

If the first duty learning amount (D _AL ) _new4 exceeds the second duty learning amount (D _AL ) _new3 ), the transmission control unit 40 performs the first duty learning amount (D _AL ) _new4 ). After replacing the learning limit amount (D _AL ) _lim4 (S330), the transmission control unit 40 stores the first duty learning amount (D _AL ) _new4 (S350).

Ten thousand and one of the first duty workload ((D _{AL) new4)} the second duty workload if ((D _{AL) new3)} or less, the transmission control unit 40 of the first duty workload ((D _{AL) new4)} After replacing the second duty learning amount (D _AL ) _new3 (S340), the transmission control unit 40 stores the first duty learning amount (D _AL ) _new4 (S350).

Finally, the transmission unit 60 learns the first duty learning amount (D _AL ) _new4 (S180).

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and easily changed and equalized by those skilled in the art from the embodiments of the present invention. It includes all changes to the extent deemed acceptable.

As described above, according to the embodiment of the present invention, the forced correction amount is determined in the turbine torque region (particularly, the region where the turbine torque is high) based on the torque phase delay time, and the duty learning amount of the turbine torque region is preset. Adjust between the minimum and maximum values. Therefore, the initial hydraulic pressure learning is performed quickly and stably in the region where the turbine torque is high.

Claims (24)

In the initial hydraulic pressure learning method in the turbine torque range set during the upshift control, Determining whether an up shift condition is satisfied; Calculating turbine torque; Initiating up shift control; Detecting an actual shift start point; Calculating an actual torque phase time T _{tp, real} ; Determining whether an upshift learning condition of the set turbine torque range is satisfied; Calculating a first forced correction amount (ΔD _AL ) _TQ4 , which is a forced correction amount of the duty applied to the actuator in the set turbine torque region, when the upshift condition of the set turbine torque region is satisfied; Calculating a correction amount of said first force ((ΔD _{AL) TQ4)} workload of duty applied to the actuator at a set turbine torque region using a first duty workload ((D _{AL) new4);} And Learning the first duty learning amount (D _AL ) _new4 ; Initial hydraulic learning method in the turbine torque area set during the up-shift control comprising a. The method of claim 1, _Computing the first forced correction amount (ΔD _AL ) _TQ4 is: Calculating a torque phase delay time (T _DA ) _L ; And Determining the first forced correction amount (ΔD _AL ) _TQ4 based on the torque phase delay time (T _DA ) _L ; Initial hydraulic learning method in the turbine torque area set during the up-shift control comprising a. The method of claim 2, The torque phase delay time ((T _{DA) L)} by using the actual torque phase time (T _{tp, real)} and the reference torque phase time _{(T tp, reference) (T} DA) L = T tp, real - T tp _, initial hydraulic pressure learning method in the turbine torque range set during the up-sheet control, characterized in that calculated by the value of the _reference . The method of claim 3, wherein The first forced correction amount (ΔD _AL ) _TQ4 is divided into three cases according to the torque phase delay time (T _DA ) _{L. The} initial hydraulic pressure learning in the turbine torque range set during the upshift control is performed. Way. The method of claim 4, wherein When the torque phase delay time (T _DA ) _L is _greater than or equal to the first limit time T ₁ and less than the second limit time T ₂ , the first forced correction amount (ΔD _AL ) _TQ4 is 0.78%. An initial hydraulic pressure learning method in a turbine torque range set during upshift control. The method of claim 4, wherein When the torque phase delay time (T _DA ) _L is _greater than or equal to the second limit time T ₂ and less than or equal to the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 is 1.17%. An initial hydraulic pressure learning method in a turbine torque range set during upshift control. The method of claim 4, wherein When the torque phase delay time (T _DA ) _L is _greater than the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 is 1.56%. Initial hydraulic learning method in the set turbine torque range. The method of claim 1, _Computing the first duty learning amount (D _AL ) _new4 may be: Defining a first duty learning amount (D _AL ) _new4 ; _Comparing the first duty learning amount (D _AL ) _new4 with a preset learning limit amount (D _AL ) _lim4 ; And Storing the first duty workload ((D _{AL) new4)} is when the predetermined learning hangyeryang ((D _{AL) lim4)} is less than said first duty workload ((D _{AL) new4);} Initial hydraulic learning method in the turbine torque area set during the up-shift control comprising a. The method of claim 8, The first duty learning amount (D _AL ) _new4 is, (D _AL ) _new4 = (D _AL ) _old4 + (ΔD _AL ) _TQ3 + (ΔD _AL ) _An initial hydraulic pressure learning method in a turbine torque range set during upshift control, characterized by the above- _mentioned formula. (Where, (D _AL ) _old4 is the first duty learning amount previously learned in the set turbine torque region, and (ΔD _AL ) _TQ3 is the second compensating amount, which is the compensating amount of the region less than the set turbine torque. The method of claim 9, The first duty workload ((D _{AL) new4)} wherein the preset learning hangyeryang ((D _{AL) lim4),} the first duty workload ((D _{AL) new4)} and duty workload of a set turbine torque is less than the area not less than Comparing the second duty learning amount (D _AL ) _new3 ; And When the first duty learning amount (D _AL ) _new4 exceeds the second duty learning amount (D _AL ) _new3 ), the first duty learning amount (D _AL ) _new4 is (D _AL ) _new4 = (D _AL ) calculating from the formula of _lim4 ; Initial hydraulic learning method in the turbine torque region set during the upshift control further comprising. The method of claim 10, The first has not more than a duty workload ((D _{AL) new4)} the second duty workload ((D _{AL) new3),} the first duty workload ((D _{AL) new4)} is (D _{AL) new4} = (D _AL ) The initial hydraulic pressure learning method in the turbine torque range set during the upshift control, which is calculated by the formula of _new3 . The method of claim 1, The initial shift learning condition of the set turbine torque range is satisfied when the turbine torque is 70% or more and a negative value of the duty change rate is detected during the actual torque phase. Learning method. In the initial hydraulic learning device in the turbine torque range set during the upshift control, A throttle opening degree detector for detecting an throttle opening amount of an engine; A vehicle speed detector for detecting a speed of the vehicle; A turbine speed detector for detecting a turbine speed of the automatic transmission; And A transmission control unit for controlling an upshift in a set turbine torque region of the automatic transmission based on signals of the throttle opening degree detector, the vehicle speed detector, and the turbine speed detector; The transmission control unit, Determining whether an up shift condition is satisfied; Calculating turbine torque; Initiating up shift control; Detecting an actual shift start point; Calculating an actual torque phase time T _{tp, real} ; Determining whether an upshift learning condition of the set turbine torque range is satisfied; Calculating a first forced correction amount (ΔD _AL ) _TQ4 , which is a forced correction amount of the duty applied to the actuator in the set turbine torque region, when the upshift condition of the set turbine torque region is satisfied; Calculating a correction amount of said first force ((ΔD _{AL) TQ4)} workload of duty applied to the actuator at a set turbine torque region using a first duty workload ((D _{AL) new4);} And Learning the first duty learning amount (D _AL ) _new4 ; Initial hydraulic learning apparatus in the turbine torque region set during the upshift control, characterized in that for performing the initial hydraulic pressure learning method in the turbine torque region set during upshift control. The method of claim 13, _Computing the first forced correction amount (ΔD _AL ) _TQ4 is: Calculating a torque phase delay time (T _DA ) _L ; And Determining the first forced correction amount (ΔD _AL ) _TQ4 based on the torque phase delay time (T _DA ) _L ; Initial hydraulic learning device in the turbine torque region set during the up-shift control comprising a. The method of claim 14, The torque phase delay time ((T _{DA) L)} by using the actual torque phase time (T _{tp, real)} and the reference torque phase time _{(T tp, reference) (T} DA) L = T tp, real - T tp _{and an} initial hydraulic pressure learning device in the turbine torque range set during the up sheet control. The method of claim 15, The first forced correction amount (ΔD _AL ) _TQ4 is divided into three cases according to the torque phase delay time (T _DA ) _{L. The} initial hydraulic pressure learning in the turbine torque range set during the upshift control is performed. Device. The method of claim 16, When the torque phase delay time (T _DA ) _L is _greater than or equal to the first limit time T ₁ and less than the second limit time T ₂ , the first forced correction amount (ΔD _AL ) _TQ4 is 0.78%. Initial hydraulic learning device in the turbine torque region set during the upshift control. The method of claim 16, When the torque phase delay time (T _DA ) _L is _greater than or equal to the second limit time T ₂ and less than or equal to the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 is 1.17%. Initial hydraulic learning device in the turbine torque region set during the upshift control. The method of claim 16, When the torque phase delay time (T _DA ) _L is _greater than the third limit time T ₃ , the first forced correction amount (ΔD _AL ) _TQ4 is 1.56%. Initial hydraulic learning device in the set turbine torque range. The method of claim 13, _Computing the first duty learning amount (D _AL ) _new4 may be: Defining a first duty learning amount (D _AL ) _new4 ; _Comparing the first duty learning amount (D _AL ) _new4 with a preset learning limit amount (D _AL ) _lim4 ; And Storing the first duty workload ((D _{AL) new4)} is when the predetermined learning hangyeryang ((D _{AL) lim4)} is less than said first duty workload ((D _{AL) new4);} Initial hydraulic learning device in the turbine torque region set during the up-shift control comprising a. The method of claim 20, The first duty learning amount (D _AL ) _new4 is, _{(D AL) new4 = (D} AL) old4 + (ΔD AL) TQ3 + (ΔD AL) the initial oil pressure learning apparatus in the turbine torque regions set at the up-shift control, characterized in that which is defined by the formula _TQ4. (Where, (D _AL ) _old4 is the first duty learning amount previously learned in the set turbine torque region, and (ΔD _AL ) _TQ3 is the second compensating amount, which is the compensating amount of the region less than the set turbine torque.) The method of claim 21, The first duty workload ((D _{AL) new4)} wherein the preset learning hangyeryang ((D _{AL) lim4),} the first duty workload ((D _{AL) new4)} and duty workload of a set turbine torque is less than the area not less than Comparing the second duty learning amount (D _AL ) _new3 ; And When the first duty learning amount (D _AL ) _new4 exceeds the second duty learning amount (D _AL ) _new3 ), the first duty learning amount (D _AL ) _new4 is (D _AL ) _new4 = (D _AL ) calculating from the formula of _lim4 ; Initial hydraulic learning device in the turbine torque region set during the upshift control further comprising. The method of claim 22, The first has not more than a duty workload ((D _{AL) new4)} the second duty workload ((D _{AL) new3),} the first duty workload ((D _{AL) new4)} is (D _{AL) new4} = (D _AL ) The initial hydraulic pressure learning device in the turbine torque range set at the time of upshift control, which is calculated by the formula of _new3 . The method of claim 13, The initial shift learning condition of the set turbine torque range is satisfied when the turbine torque is 70% or more and a negative value of the duty change rate is detected during the actual torque phase. Learning device.

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