WO1998042531A1 - Vorrichtung und verfahren zur steuerung eines cvt bei einem kraftfahrzeug - Google Patents
Vorrichtung und verfahren zur steuerung eines cvt bei einem kraftfahrzeug Download PDFInfo
- Publication number
- WO1998042531A1 WO1998042531A1 PCT/DE1998/000372 DE9800372W WO9842531A1 WO 1998042531 A1 WO1998042531 A1 WO 1998042531A1 DE 9800372 W DE9800372 W DE 9800372W WO 9842531 A1 WO9842531 A1 WO 9842531A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- torque
- kup
- transmission
- max
- drive
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 57
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/101—Infinitely variable gearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/101—Infinitely variable gearings
- B60W10/107—Infinitely variable gearings with endless flexible members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/1819—Propulsion control with control means using analogue circuits, relays or mechanical links
-
- 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
- F16H61/66—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 specially adapted for continuously variable gearings
-
- 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
- F16H61/66—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 specially adapted for continuously variable gearings
- F16H61/662—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 specially adapted for continuously variable gearings with endless flexible members
- F16H61/66272—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 specially adapted for continuously variable gearings with endless flexible members characterised by means for controlling the torque transmitting capability of the 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
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload
Definitions
- the invention relates to a device and a method for controlling a continuously variable transmission in a motor vehicle with the features of claims 1 and 7.
- the contact pressure of the push link belt must be adjusted by suitable measures so that the torque to be transmitted can be transmitted safely. If the contact pressure is too low, there is a lot of slippage between the wrapping element and the conical pulleys, which leads to damage. If the jfupreßkraft is too high, the efficiency of the transmission is too low, which leads to an unnecessarily high fuel consumption. It is therefore favorable to choose the contact pressure so that the maximum torque that can be transmitted at this contact force is somewhat larger than the moment currently to be transmitted.
- the transmission input torque is determined from the torque emitted by the engine and the gain by means of a hydrodynamic converter which may be present. From this moment, a belt tension is calculated, from which a contact pressure results, which enables a safe transmission of this moment. Since the contact pressure cannot be increased quickly enough due to the inertia of the mechanical / hydraulic system in the event of rapid changes in the torque to be transmitted, a considerable safety reserve is usually taken into account, which results in increased fuel consumption.
- the object of the present invention is to provide effective measures against the occurrence of excessive slippage in order to reliably avoid damage to the transmission.
- the invention is based on a control of a continuously variable transmission in a motor vehicle, the transmission being arranged in the drive train of the motor vehicle together with a drive unit having an adjustable output torque.
- determination means are provided for determining a size that the currently maximum transferable represented the torque of the transmission.
- the output torque of the drive unit is limited to a limit value by limiting means, this limit value being determined depending on the variable determined above.
- the invention In order to protect the gearbox reliably from damage caused by increased slippage, it is therefore provided according to the invention to limit the torque given off by the motor when the contact pressure is so low that there is a risk of excessive slippage. Since the torque of the engine can generally be limited more quickly than the contact pressure can be increased, a safe system is achieved without having to provide an excessively large safety reserve for the contact pressure, which increases fuel consumption.
- the invention thus leads to an increase in the efficiency of the transmission by reducing the contact pressure compared to existing systems without a loss of safety and thus a reduction in fuel consumption. In this way, increased transmission of torque through the transmission is obtained because slip is reliably avoided, which also leads to increased driving safety.
- the safe avoidance of slippage increases the service life of the transmission.
- a converter is further provided in the drive train, which has a determinable torque gain.
- the limit value is determined depending on the current converter gain. If a clutch is provided in the drive train that has a determinable torque transmission, the determination of the limit value is advantageously carried out as a function of the current torque transmission.
- a belt transmission generally has a drive side and an output side and active means (belt element, e.g. push link belt or chain) for establishing a mechanical operative connection between the drive and driven side.
- detection means are provided which detect a pressure variable which represents the contact pressure between the active means and the drive and / or output side.
- the hydraulic contact pressure can be used to measure directly or it can be determined from corresponding control signals.
- the determination means according to the invention are then designed in such a way that the quantity representing the currently maximum transmissible torque of the transmission is determined from the detected contact variable.
- the limiting means are designed in such a way that the output torque of the drive unit can be limited both to positive limit values (drive torque limitation) and to negative limit values (drag torque limitation). This means that the magnitude of the output torque of the drive unit is compared with the determined limit value and, in response to an exceeding of the limit value, the output torque of the drive unit in the sense of a shortfall the limit value is reduced (drive torque limit) or increased (drag torque limit).
- Figure 1 shows schematically a CVT with a known control of the contact pressure
- Figure 2 shows the embodiment using a block diagram
- Figures 3 and 4 contain details of the block diagram shown in Figure 2.
- the internal combustion engine 1 can be influenced by the throttle valve 2 in its engine torque M m .
- the throttle valve 2 is, for example, mechanically or electrically coupled to the accelerator pedal (not shown).
- the internal combustion engine 1 is usually coupled to the drive (primary) side of the CVT transmission 4 by means of a clutch and / or a converter 3.
- the output (secondary) side of the CVT transmission 4 is via a downstream transmission (not shown) with the wheels of the Connected to the vehicle.
- the CVT transmission has an axially displaceable conical disk 5 and 6 on the primary and secondary side. To adjust the ratio, a corresponding primary pressure P p or secondary pressure P s is built up in the oil chambers 7 and 8.
- a suitable choice of the actuating variables primary pressure P p and secondary pressure P s must ensure that
- gear ratio i corresponds to the desired ratio of primary speed N p and secondary speed N s .
- the force-transmitting pusher belt 9 (or chain, belt) is pressed sufficiently strongly against the disks to prevent the pusher belt 9 from slipping.
- point 1 is realized by an electrohydraulic transmission or primary speed control 10.
- a band tension control 11 is used for point 2.
- 4 speed sensors 12, 13 and 14 are present on the engine 1 and on the CVT transmission, which detect the engine speed M m , the primary speed Np and the secondary speed N s .
- the secondary pressure P s is used to set the belt tension and the primary pressure P p is used to set the transmission or primary speed.
- the band voltage regulation of both primary and secondary pressure is used to set the band voltage regulation of both primary and secondary pressure.
- an actuating signal in the form of a pressure variable Pg is available for the belt tension control.
- Several methods for regulating the belt tension are known from the literature, but they all work in a similar form.
- FIG. 2 shows with reference number 1 the vehicle engine, which is connected to the vehicle drive wheels 5 via a converter 3 and a CVT 4.
- the output torque md_kup of the engine can be controlled or regulated by means of the engine control or by means of the engine torque coordination II.
- the torque gain mue_wd of the converter 3 is calculated in block 31, generally from the converter slip (from the ratio of engine speed / primary speed Np) via a map.
- the mentioned contact pressure is determined.
- the current maximum transferable torque md_ge_max of the transmission is calculated from the current operating point of the belt element.
- the amount of the torque required by the engine can be limited in the engine control 11 to the maximum torque md_ge_max that can be transmitted by the transmission, taking into account the torque gain mue_wd of the hydrodynamic converter 3.
- a reduction in the engine output torque md_kup can e.g. take place as it is known from known output slip control systems (ASR).
- An increase in the engine output torque md_kup in the event of an excessive drag torque can e.g. take place as it is known in known engine drag torque control systems (MSR).
- the transmission input torque md_ge is calculated in the torque coordinator 30 (FIG. 2) for the drive train from the engine output torque md_kup and the converter gain mue_wd:
- md_ge md_kup * mue_wd
- a computation block 35 in the control 41 of the transmission uses this to determine a contact pressure p_soll according to a method as shown in FIG.
- the transmission input torque md_ge determined in block 30 and the current transmission ratio u are supplied to the characteristic diagram 351 for determining a basic contact pressure p_ground.
- This basic pressure is used in the unit 354 value dependent on the transmission output speed Ns (centrifugal force correction characteristic 352) is subtracted.
- a certain safety margin characteristic pressure reserve pressure 353 is then added in the unit 355 depending on the transmission ratio. This gives the target pressure p_soll to be set.
- the maximum transmission input torque md_ge_max to be transmitted can be calculated from this, quasi by inversion of the target contact pressure determination described in FIG. For this purpose, the correction value already described (centrifugal force correction characteristic 352) and the safety margin (characteristic pressure reserve pressure 353) are added or subtracted. From the basic contact pressure p_ground obtained in this way, the maximum transmission input torque md_ge_max to be transmitted is determined as a function of the torque transmission ratio u by means of the characteristic diagram 455.
- the maximum transmission input torque md_ge_max to be transmitted is divided by the current torque gain mue_wd of the converter, from which the maximum engine output torque md_kup_max is obtained.
- the engine 11 torque coordinator now has the task of limiting the engine output torque to this value md_kup_max.
- the safety reserve to protect against rapid dynamic changes in the transmission input torque can be selected lower, which results in reduced fuel consumption.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Transmission Device (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59801504T DE59801504D1 (de) | 1997-03-26 | 1998-02-11 | Vorrichtung und verfahren zur steuerung eines cvt bei einem kraftfahrzeug |
JP10544656A JP2000511849A (ja) | 1997-03-26 | 1998-02-11 | 自動車におけるcvtの制御のための装置及び方法 |
US09/308,171 US6168546B1 (en) | 1997-03-26 | 1998-02-11 | Device and method for controlling the transmittable torque in a CVT |
EP98907889A EP0900154B1 (de) | 1997-03-26 | 1998-02-11 | Vorrichtung und verfahren zur steuerung eines cvt bei einem kraftfahrzeug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712713A DE19712713A1 (de) | 1997-03-26 | 1997-03-26 | Vorrichtung und Verfahren zur Steuerung eines CVT bei einem Kraftfahrzeug |
DE19712713.4 | 1997-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998042531A1 true WO1998042531A1 (de) | 1998-10-01 |
Family
ID=7824696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000372 WO1998042531A1 (de) | 1997-03-26 | 1998-02-11 | Vorrichtung und verfahren zur steuerung eines cvt bei einem kraftfahrzeug |
Country Status (6)
Country | Link |
---|---|
US (1) | US6168546B1 (de) |
EP (1) | EP0900154B1 (de) |
JP (1) | JP2000511849A (de) |
CZ (1) | CZ292812B6 (de) |
DE (2) | DE19712713A1 (de) |
WO (1) | WO1998042531A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7988573B2 (en) | 2004-04-14 | 2011-08-02 | Toyota Jidosha Kabushiki Kaisha | Device and method for controlling belt-type continuously variable transmission |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19858263A1 (de) * | 1998-12-17 | 2000-06-21 | Zahnradfabrik Friedrichshafen | Verfahren zum Überwachen eines stufenlosen Getriebes |
DE19912999B4 (de) * | 1999-03-23 | 2006-08-10 | Zf Friedrichshafen Aktiengesellschaft | Verfahren zum Schutz eines Variators bei einem stufenlosen Umschlingungsgetriebe |
DE10028459A1 (de) * | 1999-06-12 | 2000-12-14 | Bosch Gmbh Robert | System zur Einstellung der Spannung des Umschlingungsteils eines Umschlingungsgetriebes |
DE19937472C1 (de) * | 1999-08-07 | 2000-11-30 | Zahnradfabrik Friedrichshafen | Verfahren zur Variatorschlupfbehandlung bei stufenlosen Automatgetrieben |
JP3571607B2 (ja) * | 2000-03-27 | 2004-09-29 | 本田技研工業株式会社 | ベルト式無段変速機 |
DE10050218A1 (de) * | 2000-10-11 | 2002-04-25 | Volkswagen Ag | Verfahren zur Anpresskraftregelung für stufenlos verstellbare Getriebe |
JP2005502008A (ja) * | 2001-08-31 | 2005-01-20 | トロトラック・(ディベロップメント)・リミテッド | 連続可変トランスミッションおよびその動作方法 |
DE10154059A1 (de) * | 2001-11-02 | 2003-05-15 | Audi Ag | Verfahren zur Schlupfregelung |
DE50200593D1 (de) * | 2002-01-26 | 2004-08-12 | Ford Global Tech Llc | Verfahren zum Steuern eines stufenlosen Kraftfahrzeug-Getriebes |
US6974009B2 (en) * | 2002-02-04 | 2005-12-13 | Toyota Jidosha Kabushiki Kaisha | Control apparatus for power train including continuously variable transmission |
DE60237346D1 (de) * | 2002-02-15 | 2010-09-30 | Ford Global Tech Inc | Drehmomentsteuerungsverfahren und System zu dessen Durchführung |
JP3730204B2 (ja) * | 2002-09-02 | 2005-12-21 | ジヤトコ株式会社 | ベルト式無段変速機のベルト滑り防止システム |
DE50306230D1 (de) * | 2002-12-23 | 2007-02-15 | Luk Lamellen & Kupplungsbau | Verfahren und vorrichtung zur fehlerüberwachung einer elektr onischen steuereinrichtung eines im antriebsstrang eines kraftfahrzeugs angeordneten automatischen getriebes |
US7666110B2 (en) * | 2003-03-26 | 2010-02-23 | Toyota Jidosha Kabushiki Kaisha | Control system for power transmission mechanism |
JP3885766B2 (ja) | 2003-05-19 | 2007-02-28 | トヨタ自動車株式会社 | 車両の動力源と無段変速機との協調制御装置 |
JP2005291395A (ja) | 2004-03-31 | 2005-10-20 | Jatco Ltd | 車両用ベルト式無段変速機の油圧制御装置 |
JP2005291111A (ja) * | 2004-03-31 | 2005-10-20 | Jatco Ltd | 車両用ベルト式無段変速機の入力トルク制御装置 |
DE102004018380A1 (de) * | 2004-04-16 | 2005-11-10 | Daimlerchrysler Ag | Vorrichtung mit einer Einheit, die zum Bestimmen eines Maximalmoments eines Kraftfahrzeugmotors vorgesehen ist |
DE112007001662A5 (de) * | 2006-08-09 | 2009-04-23 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Verfahren und Vorrichtung zum Begrenzen des Eingangsmoments eines Kegelscheibenumschlingungsgetriebes mit integrierter hydromechanischer Drehmomentfühleneinrichtung |
FR2910420B1 (fr) * | 2006-12-22 | 2009-01-23 | Renault Sas | Procede de commande d'une transmission continument variable pour vehicule automobile. |
JP5171799B2 (ja) * | 2008-12-18 | 2013-03-27 | 日産自動車株式会社 | ベルト式無段変速機の制御装置 |
JP5605504B2 (ja) * | 2011-04-12 | 2014-10-15 | トヨタ自動車株式会社 | 車両用駆動装置の制御装置 |
DE102013219922B4 (de) * | 2013-10-01 | 2017-08-03 | Zf Friedrichshafen Ag | Verfahren und Steuerungssystem zum Betreiben eines Antriebstrangs |
DE102019127419A1 (de) * | 2019-10-11 | 2021-04-15 | Schaeffler Technologies AG & Co. KG | Notbetriebsverfahren für ein Umschlingungsgetriebe bei Anpressdruckabfall, sowie Antriebsstrang |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4577737A (en) * | 1982-08-02 | 1986-03-25 | Nissan Motor Co., Ltd. | Lock-up torque converter and method for controlling clutch slip in lock-up torque converter |
US4665773A (en) * | 1984-03-13 | 1987-05-19 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Continuously variable transmission apparatus for automobile |
EP0328166A1 (de) * | 1988-02-02 | 1989-08-16 | Van Doorne's Transmissie B.V. | Stufenloses Getriebe mit Momentwandler |
US5042325A (en) * | 1989-07-06 | 1991-08-27 | Mazda Motor Corporation | Control system for steplessly variable power transmission |
EP0446497A1 (de) * | 1990-03-15 | 1991-09-18 | Van Doorne's Transmissie B.V. | Stufenloses Getriebe |
EP0451887A1 (de) | 1990-04-12 | 1991-10-16 | Van Doorne's Transmissie B.V. | Stufenlos regelbares Getriebe mit elektronischer Steuerung |
US5435795A (en) * | 1993-03-10 | 1995-07-25 | Nissan Motor Co., Ltd. | Vehicle drivetrain control including CVT |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61119856A (ja) * | 1984-09-25 | 1986-06-07 | Toyota Motor Corp | 無段変速機を備えた車両の駆動力制御装置 |
US5434795A (en) | 1990-01-11 | 1995-07-18 | Fujitsu Limited | Method of forming pattern having optical angle in charged particle exposure system |
US5047937A (en) * | 1990-06-01 | 1991-09-10 | General Motors Corporation | Engine CVT control system |
US5305213A (en) * | 1991-05-09 | 1994-04-19 | Eaton Corporation | Driveline torque limit control strategy-using SAE J1922 type engine control |
JP3475639B2 (ja) * | 1996-03-07 | 2003-12-08 | 日産自動車株式会社 | 無段変速機の変速制御装置 |
US5738606A (en) * | 1996-09-30 | 1998-04-14 | Cummins Engine Company, Inc. | Control system for regulating output torque of an internal combustion engine |
JP3596213B2 (ja) * | 1997-02-21 | 2004-12-02 | 日産自動車株式会社 | エンジン制御装置 |
US5989154A (en) * | 1997-08-11 | 1999-11-23 | Caterpillar Inc. | Apparatus for limiting the torque on a power train and method of operating same |
-
1997
- 1997-03-26 DE DE19712713A patent/DE19712713A1/de not_active Withdrawn
-
1998
- 1998-02-11 WO PCT/DE1998/000372 patent/WO1998042531A1/de active IP Right Grant
- 1998-02-11 EP EP98907889A patent/EP0900154B1/de not_active Expired - Lifetime
- 1998-02-11 DE DE59801504T patent/DE59801504D1/de not_active Expired - Lifetime
- 1998-02-11 US US09/308,171 patent/US6168546B1/en not_active Expired - Fee Related
- 1998-02-11 JP JP10544656A patent/JP2000511849A/ja active Pending
- 1998-02-11 CZ CZ19983844A patent/CZ292812B6/cs not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4577737A (en) * | 1982-08-02 | 1986-03-25 | Nissan Motor Co., Ltd. | Lock-up torque converter and method for controlling clutch slip in lock-up torque converter |
US4665773A (en) * | 1984-03-13 | 1987-05-19 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Continuously variable transmission apparatus for automobile |
EP0328166A1 (de) * | 1988-02-02 | 1989-08-16 | Van Doorne's Transmissie B.V. | Stufenloses Getriebe mit Momentwandler |
US5042325A (en) * | 1989-07-06 | 1991-08-27 | Mazda Motor Corporation | Control system for steplessly variable power transmission |
EP0446497A1 (de) * | 1990-03-15 | 1991-09-18 | Van Doorne's Transmissie B.V. | Stufenloses Getriebe |
EP0451887A1 (de) | 1990-04-12 | 1991-10-16 | Van Doorne's Transmissie B.V. | Stufenlos regelbares Getriebe mit elektronischer Steuerung |
US5435795A (en) * | 1993-03-10 | 1995-07-25 | Nissan Motor Co., Ltd. | Vehicle drivetrain control including CVT |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7988573B2 (en) | 2004-04-14 | 2011-08-02 | Toyota Jidosha Kabushiki Kaisha | Device and method for controlling belt-type continuously variable transmission |
DE102005016833B4 (de) * | 2004-04-14 | 2013-01-17 | Toyota Jidosha K.K. | Steuervorrichtung zum Steuern eines stufenlosen Riemengetriebes |
DE102005016833B8 (de) * | 2004-04-14 | 2013-04-04 | Toyota Jidosha Kabushiki Kaisha | Steuervorrichtung zum Steuern eines stufenlosen Riemengetriebes |
Also Published As
Publication number | Publication date |
---|---|
JP2000511849A (ja) | 2000-09-12 |
DE59801504D1 (de) | 2001-10-25 |
CZ384498A3 (cs) | 1999-12-15 |
CZ292812B6 (cs) | 2003-12-17 |
DE19712713A1 (de) | 1998-10-01 |
EP0900154B1 (de) | 2001-09-19 |
EP0900154A1 (de) | 1999-03-10 |
US6168546B1 (en) | 2001-01-02 |
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