WO2004083688A1 - 自動変速機の特性補正システム - Google Patents
自動変速機の特性補正システム Download PDFInfo
- Publication number
- WO2004083688A1 WO2004083688A1 PCT/JP2004/003519 JP2004003519W WO2004083688A1 WO 2004083688 A1 WO2004083688 A1 WO 2004083688A1 JP 2004003519 W JP2004003519 W JP 2004003519W WO 2004083688 A1 WO2004083688 A1 WO 2004083688A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- automatic transmission
- duty
- difference
- correction system
- torque converter
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/0053—Initializing the parameters of the controller
Definitions
- the present invention relates to a characteristic correction system for an automatic transmission, which can obtain a good shift quality by correcting a characteristic variation between individuals.
- a solenoid pulp is provided for each friction engagement element such as a clutch or a brake to control engagement of each friction engagement element (that is, control hydraulic pressure).
- the hydraulic pressure of each clutch and the like is measured to determine whether or not it is within the allowable range and whether or not it can be shipped. Therefore, there is a possibility that the calibration error of the oil pressure sensor that detects the hydraulic pressure, which is caused by machine differences due to the specification difference of each receiving cab and the deviation of the calibration value of the oil pressure sensor, and that air may enter the piping, etc. There is a limit. For this reason, there has been a problem that in order to obtain a good shift quality that eliminates individual variations of the automatic transmission, it is necessary to wait for a certain amount of learning results of actual driving in the market.
- the present invention has been made in view of the above circumstances, and has a characteristic correction system for an automatic transmission capable of correcting a characteristic variation of each individual without waiting for the promotion of learning by actual running and obtaining a good shift quality. It is intended to provide. Disclosure of the invention
- a characteristic correction system for an automatic transmission is an automatic transmission that performs a shift operation by engaging and releasing friction engagement elements of a multi-stage transmission unit connected to a torque converter by respective hydraulic control valves.
- a characteristic correction system comprising: means for calculating a correction amount of control data based on reference characteristics of the automatic transmission based on a result of a test run performed after assembly of the automatic transmission; and Means for storing the correction amount in an electronic control device for controlling the automatic transmission after the vehicle is assembled to the vehicle.
- FIG. 1 is an explanatory diagram showing a characteristic correction system of an automatic transmission by a receipt operation
- FIG. 2 is a diagram of a characteristic variation of the automatic transmission by a receipt operation
- FIG. 3 is a flowchart showing a measurement process
- FIG. 3 is an explanatory diagram of a shipping determination standard
- 4 to 6 relate to a second embodiment of the present invention
- FIG. 4 is a flowchart of a characteristic variation correction process of an automatic transmission in a vehicle
- FIG. 5 is an explanatory diagram showing a correlation between a correction amount and a learning value.
- FIG. 6 is an explanatory diagram showing the relationship between the reference characteristic and the upper and lower limit characteristics.
- 1 to 3 show a first embodiment of the present invention.
- Fig. 1 shows the automatic transmission characteristic correction system built on the production and shipping lines in the factory.
- FCA is a transmission assembly factory
- FCB is an automatic transmission 1 transported from the transmission assembly factory FCA.
- This is a vehicle assembly factory that assembles the control unit (TCU) 50 with the vehicle body 100 and performs outfitting.
- the automatic transmission 1 is provided with a solenoid valve for each friction engagement element such as a clutch or a brake, and controls the engagement of each friction engagement element (that is, controls the hydraulic pressure).
- This is a transmission, which is similar to the automatic transmission disclosed in Japanese Patent Application Laid-Open No. 2003-004130 by the present applicant. ⁇
- the automatic transmission 1 includes a torque converter to which a driving force from an engine output shaft is input, and a multi-speed transmission unit connected to the torque converter.
- the multi-speed transmission unit includes a planetary gear gut disposed on the input shaft, and a high clutch that engages and disengages power transmission between the input shaft and the planetary carrier as a frictional engagement element, and the input shaft.
- Reverse clutch for engaging and disengaging power transmission between sun gear
- 2-4 brake for engaging and disengaging between sun gear and automatic transmission case
- low clutch for disengaging between planetary carrier and ring gear
- planetary carrier Low one-way clutch that engages and disengages in one direction between the low clutch drum and the automatic transmission case that rotate integrally with the gear
- low and reverse (L-R) that engages and disengages between the low clutch drum and the automatic transmission case. It has a brake, etc., and the duty control of the duty solenoid valve for adjusting the hydraulic pressure of the control valve is performed to control the engagement of each friction engagement element. Hydraulic control).
- the automatic transmission 1 assembled by FCA is subjected to characteristic inspections at the receiving cab 3 and the type of vehicle to be mounted.
- An identification number 2 consisting of a bar code, etc., for identifying different specifications for each type of engine model etc. is attached to each Shipping to FCB.
- Receiving operation at the receiving cab 3 is executed and controlled by the receiving operation executing device 5 for each individual with the identification number 2 read by the identification number reading device 4, and is disposed inside the automatic transmission 1.
- the control of the solenoid valve for adjusting the hydraulic pressure of the control valve and the receiving cab 3, the determination of the amount of correction for the characteristic variation of the automatic transmission 1, and the determination of shipment are performed collectively.
- the reception operation result of the automatic transmission 1 is stored in the reception operation result storage device 6 in association with the identification number 2 for each automatic transmission 1, and the communication line or the storage medium is stored in the vehicle assembly factory FCB. Sent through.
- the automatic transmission 1 is incorporated into the vehicle body 100, and data for correcting characteristic variations is written to the TCU50 in the free roller check process on the chassis dynamometer 7 at the line end.
- the identification number 2A is read with a bar code or the like, and the identification number reading device 8 that reads the corresponding receipt operation data from the receipt operation result storage device 6;
- a correction amount writing device 9 for determining a correction amount for the characteristic variation and writing the correction amount to the TCU 50 is used.
- the identification number 2A may be the identification number attached to the automatic transmission 1, but usually, after the automatic transmission 1 is mounted on the vehicle body 100, the identification number of the automatic transmission 1 is read. Since it is not easy, the identification number 2 of the automatic transmission 1 may be replaced with the vehicle body number or the like of the automatic transmission 1 when it is mounted on the vehicle body 100. In this case, the correspondence between the vehicle body number and the identification number 2 of the automatic transmission 1 is stored in the identification number reading device 8.
- the temperature of the automatic transmission oil (ATF), the input rotation speed, and the like are relatively stable with respect to the actual traveling state during the receiving operation of the automatic transmission 1. Maintain and understand the amount of correction to the characteristics that can provide good shifting quality. Then, the grasped correction amount is written and stored in the TCU 50 for controlling the automatic transmission 1, so that the time for promoting learning by actual traveling is omitted, and a better shift quality than the initial time at the time of shipment is obtained.
- the hydraulic pressure of each clutch is measured, it is checked whether it is within the allowable range or not, and it is determined whether or not it can be shipped. It was difficult to improve the measurement accuracy due to the influence of the deviation of the calibration value of the oil pressure sensor that detects the machine difference and the oil pressure, the mixing of air in the piping, and so on.However, in the receiving operation in this embodiment, Analog measurement, which includes many errors, has been abolished, enabling more accurate shipping inspections.
- the output shaft of the automatic transmission 1 is fixed to the receiving cab 3 and set to a predetermined shift position, and a constant input speed is given to the torque converter.
- one of the two engaged clutches (brake) is used to reduce the clutch oil pressure so that the difference between the input speed of the torque converter and the turbine speed of the torque converter becomes the reference value.
- the two clutches intentionally create a half-clutch state, and the clutch that reduces the hydraulic pressure has the drive necessary to create a constant torque that maintains the difference between the input speed and the turbine speed at the reference value. Measure the duty.
- the drive duty of the control pulp for the duty solenoid valve is determined by the characteristics of the components constituting the automatic transmission 1, such as the hydraulic characteristics of the control valve, the friction coefficient of the clutch, the output torque characteristics of the torque converter, It is affected by variations in the various factors such as the biasing force of the clutch piston's return spring and the clutch clearance. Appears as Tsuki. Therefore, by storing the difference between the measured drive duty and the reference value as a correction amount in the TCU 50, good shift quality can be secured from the time of shipment.
- step S1 a target value (target differential rotation) ⁇ of a rotational difference between the input rotational speed Ni 11 of the torque converter and the turbine rotational speed Nt is set.
- the target differential rotation ⁇ ⁇ is the rotation when the automatic solenoid valve 1 is set to the predetermined gear position and the duty valve of the control valve for controlling the hydraulic pressure of the target clutch or brake is driven at the reference duty value.
- Difference For example, 700 rpm when measuring with 2-4 brakes, and 140 rpm when measuring with high clutch and low clutch. '
- step S2 an instruction to set the input rotation speed of the automatic transmission 1 to a fixed rotation speed (for example, l OOO r pm) is output to the receiving cab 3, and in step S3, the control valve is opened. Output an instruction to set the drive duty duty of the duty solenoid valve for controlling the specified clutch and brake to a reference value (different for each clutch * brake), and then proceed to step S4.
- a fixed rotation speed for example, l OOO r pm
- step S4 the turbine speed Nt is measured by the turbine speed sensor provided in the automatic transmission 1, and in step S5, the input speed Nin and the turbine speed already kept constant are measured. Calculate the rotation difference (N in-N t) from the number N t and compare it with the target difference rotation ⁇ .
- step S5 if ⁇ > ⁇ inN t and the rotation difference (N in— N t) is larger than the target difference rotation ⁇ , the process proceeds from step S5 to step S6 to change the drive duty duty of the duty solenoid valve. , Decrease by the set value a according to the deviation (duty—duty— ⁇ ;). In addition, if ⁇ Nin—Nt, and the rotation difference (N inNt) is smaller than the target difference rotation ⁇ , the process proceeds from step S5 to step S7 to drive the duty solenoid valve. Increase duty by the set value ⁇ according to the deviation (dutyduty + ⁇ ).
- step S8 the rotation difference (N in— Nt) is changed to the target differential rotation ⁇ .
- step S8 the rotation difference (N in— Nt) is changed to the target differential rotation ⁇ .
- step S9 it is checked whether or not the drive duty duty converging to the target differential rotation ⁇ satisfies the shipping determination standard, and a shipping determination is made as to whether shipping is possible.
- the drive duty du that converges to the target differential rotation ⁇ is determined as shown in Fig. 3.
- ty is set as an allowable area between the upper limit value duty_upper and the lower limit value duty_1ower when the design tolerances are accumulated, and shipped by checking whether it is within this area. Make a decision.
- the drive duty value duty of each automatic transmission 1 is the difference from the reference value in the free roller process after installation into the vehicle as the correction amount of each automatic transmission 1. Written to TCU 50.
- the drive of the duty solenoid valve in which the difference between the input rotation speed and the turbine rotation speed becomes the reference value is performed.
- a correction system for an automatic transmission is also constructed on the vehicle side.
- the automatic transmission 1 The duty ratio of the duty solenoid valve Measurement, and reflect this variation in the learning value.
- step S21 and S22 it is determined whether the engine speed Ne is within the specified range and whether the ATF temperature is within the specified range ⁇ , respectively. Find out. This is to check whether or not the same conditions as those of the receiving operation of the automatic transmission 1 in the first embodiment are satisfied.
- step S23 the process proceeds to step S23.
- an instruction is issued to output the duty duty of the duty solenoid valve for controlling the designated clutch or brake of the control valve as a reference value, and the flow proceeds to step S24.
- step S24 the turbine speed Nt is measured by the turbine speed sensor provided in the automatic transmission 1, and in step S25, the engine speed Ne, which is the input speed of the automatic transmission, and the turbine speed Nt are measured.
- the rotation difference (Ne-Nt) from the rotation speed Nt is calculated and compared with the target difference rotation ⁇ .
- step S25 the drive duty duty of the duty solenoid valve is reduced by a set value corresponding to the deviation (duty—duty— ⁇ )
- step S27 the drive duty duty of the duty solenoid valve by a set value corresponding to the deviation (dutyuty + a).
- this learning value is reflected in the learning value correction amount 0 when the driving duty duty is the reference value, and the learning value is adjusted according to the increase / decrease ratio of the measured driving duty duty to the reference value. Increase or decrease the correction amount.
- the drive duty duty is the upper limit value dut y_upper with respect to the reference value set in advance according to the ATF temperature.
- lower limit dty 1 ower Check if it is between. When it is within the range of the upper and lower limits, the correction amount is stored in the control data memory in the TCU 50, and when it is out of the range, it is determined to be abnormal, and the data is stored in the backup memory for failure diagnosis. A warning is issued to the driver, and the process ends.
- the characteristic correction system of the automatic transmission 1 is constructed by using the TCU 50 on the vehicle side and characteristic variations are corrected in advance, for example, for inspection at a dealer in a market. Even if the automatic transmission 1 or TCU 50 is replaced at the time of repair, or if the learning value is reset by turning off the power of the TCU 50, etc., the transmission quality can be improved by resetting the learning value. Good shifting quality can be obtained without deterioration and without waiting for promotion of learning.
- the characteristic correction system of the present invention can be applied to a control clutch in a four-wheel drive transfer in addition to a transmission clutch of an automatic transmission, and corrects a relationship between a control amount and a transmission torque. This improves the traction performance and expands the area where the tight corner braking phenomenon can be prevented.
- the hydraulic control valve is described as a duty solenoid valve, but the present invention is not limited to this, and the hydraulic control valve is provided with another solenoid valve, for example, a linac solenoid valve. Also applicable to Industrial applicability
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002519415A CA2519415C (en) | 2003-03-19 | 2004-03-17 | Property correcting system of automatic transmission |
AU2004221584A AU2004221584B2 (en) | 2003-03-19 | 2004-03-17 | Characteristics correction system for automatic transmission |
US10/549,669 US7468016B2 (en) | 2003-03-19 | 2004-03-17 | Characteristics correction system for automatic transmission |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-76131 | 2003-03-19 | ||
JP2003076131A JP2004286062A (ja) | 2003-03-19 | 2003-03-19 | 自動変速機の特性補正システム |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004083688A1 true WO2004083688A1 (ja) | 2004-09-30 |
Family
ID=33027881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/003519 WO2004083688A1 (ja) | 2003-03-19 | 2004-03-17 | 自動変速機の特性補正システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US7468016B2 (ja) |
JP (1) | JP2004286062A (ja) |
AU (1) | AU2004221584B2 (ja) |
CA (1) | CA2519415C (ja) |
WO (1) | WO2004083688A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004053042A1 (de) * | 2004-11-03 | 2006-05-24 | Daimlerchrysler Ag | Verfahren zur Regelung eines Antriebsstrangs eines Kraftfahrzeugs |
JP4188954B2 (ja) * | 2005-08-08 | 2008-12-03 | 三菱電機株式会社 | 不帰還型負荷電流装置 |
JP4756961B2 (ja) * | 2005-09-07 | 2011-08-24 | 日立建機株式会社 | 自動変速機のクラッチ油圧特性値設定方法 |
JP4979233B2 (ja) * | 2005-12-28 | 2012-07-18 | アイシン・エィ・ダブリュ株式会社 | 自動変速機の補正値測定方法および測定装置、ならびにこれら測定方法および測定装置によって測定された補正値を利用する自動変速機 |
JP4432950B2 (ja) | 2006-09-15 | 2010-03-17 | トヨタ自動車株式会社 | 車両用自動変速機の調整方法 |
JP2008121834A (ja) | 2006-11-14 | 2008-05-29 | Fuji Heavy Ind Ltd | 自動変速機の特性補正システム |
DE102009051720A1 (de) * | 2008-11-24 | 2010-06-02 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Verfahren zur Inbetriebnahme |
JP2010210020A (ja) * | 2009-03-10 | 2010-09-24 | Toyota Motor Corp | 車両用油圧制御装置 |
KR101103970B1 (ko) * | 2009-09-16 | 2012-01-06 | 기아자동차주식회사 | 차량의 tcu 티칭 방법 |
DE102011017515B4 (de) * | 2011-04-26 | 2018-06-21 | Zf Friedrichshafen Ag | Verfahren zur Bestimmung von Kenngrößen eines Automatikgetriebes |
JP2013072529A (ja) * | 2011-09-29 | 2013-04-22 | Hitachi Automotive Systems Ltd | リニアソレノイドモジュール |
KR101826547B1 (ko) * | 2015-12-14 | 2018-02-07 | 현대자동차 주식회사 | 자동변속기의 제어 장치 및 방법 |
CN108302192B (zh) * | 2018-01-30 | 2019-09-17 | 吉利汽车研究院(宁波)有限公司 | 变速箱自学习状态进入方法与装置 |
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JPH10184410A (ja) * | 1996-12-25 | 1998-07-14 | Aisin Aw Co Ltd | 自動変速機の変速制御装置 |
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2003
- 2003-03-19 JP JP2003076131A patent/JP2004286062A/ja active Pending
-
2004
- 2004-03-17 WO PCT/JP2004/003519 patent/WO2004083688A1/ja active Application Filing
- 2004-03-17 AU AU2004221584A patent/AU2004221584B2/en not_active Ceased
- 2004-03-17 CA CA002519415A patent/CA2519415C/en not_active Expired - Fee Related
- 2004-03-17 US US10/549,669 patent/US7468016B2/en not_active Expired - Fee Related
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WO1998017929A1 (de) * | 1996-10-21 | 1998-04-30 | Zf Friedrichshafen Ag | Verfahren zur bestimmung von kenngrössen eines automatgetriebes |
JPH10184410A (ja) * | 1996-12-25 | 1998-07-14 | Aisin Aw Co Ltd | 自動変速機の変速制御装置 |
JP2002295662A (ja) * | 2001-03-29 | 2002-10-09 | Komatsu Ltd | 指令信号の補正装置 |
JP2003014119A (ja) * | 2001-04-10 | 2003-01-15 | Aisin Aw Co Ltd | パワートレイン並びにその検査方法及び検査装置 |
JP2003004130A (ja) * | 2001-06-21 | 2003-01-08 | Fuji Heavy Ind Ltd | 自動変速機の制御装置 |
JP2003254418A (ja) * | 2002-03-04 | 2003-09-10 | Denso Corp | 自動変速装置の製造方法、およびその製造方法で製造した自動変速装置 |
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Also Published As
Publication number | Publication date |
---|---|
US20060229788A1 (en) | 2006-10-12 |
AU2004221584B2 (en) | 2008-07-24 |
JP2004286062A (ja) | 2004-10-14 |
CA2519415C (en) | 2008-07-22 |
AU2004221584A1 (en) | 2004-09-30 |
CA2519415A1 (en) | 2004-09-30 |
US7468016B2 (en) | 2008-12-23 |
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