WO2005035296A1 - Steuersystem für ein zumindest zeitweise vierradgetriebenes kraftfahrzeug - Google Patents
Steuersystem für ein zumindest zeitweise vierradgetriebenes kraftfahrzeug Download PDFInfo
- Publication number
- WO2005035296A1 WO2005035296A1 PCT/EP2004/011167 EP2004011167W WO2005035296A1 WO 2005035296 A1 WO2005035296 A1 WO 2005035296A1 EP 2004011167 W EP2004011167 W EP 2004011167W WO 2005035296 A1 WO2005035296 A1 WO 2005035296A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drive
- control system
- control unit
- torque
- wheels
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
- B60K23/0808—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles for varying torque distribution between driven axles, e.g. by transfer clutch
-
- 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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/18—Steering angle
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/02—Clutches
- B60W2710/027—Clutch torque
Definitions
- the invention relates to a control system for an at least temporarily four-wheel drive motor vehicle according to the preamble of patent claim 1.
- a torque distribution device for changing the torque distribution ratio between the wheels of the front axle and the wheels of the rear axle by appropriately controlling a friction clutch as a longitudinal lock (transmission clutch).
- the driving behavior of a vehicle can be significantly influenced by specifying a torque distribution ratio.
- the subject of DE 100 54 023 A1 deals in particular with the driving dynamics when cornering.
- the following are generalized as primary drive wheels, the wheels permanently connected to the drive unit and as customary drive wheels, which can be connected to the drive unit via the transmission clutch if necessary.
- the invention is based on the knowledge that in a new system the characteristic curve in the control unit, by means of which an adjustment path is assigned to a target clutch torque, leads relatively exactly to an actual clutch torque that corresponds to the target clutch torque. In an older system, however, the same adjustment path could lead to an actual clutch torque that is smaller than the target clutch torque.
- the target clutch torque is known, but not the clutch torque that is actually set.
- the clutch torque actually set is to be calculated as simply as possible according to the invention, saving additional sensors. The calculation is carried out only in the case of an operating condition, in particular in the case of wheels running in a stable manner, by means of which simplifications in the calculation can be carried out, since certain unknown quantities can be neglected.
- the linear area of the slip curve should preferably be present so that a stable running of all wheels without slip is ensured.
- the same longitudinal tire stiffnesses (k) should be present on the wheels of the front axle and the wheels of the rear axle, so that identical tire behavior on the wheels of the front axle and that of the rear axle is ensured (cf. also representation of known slip curves in FIGS. 3a and 3b).
- the monitoring accuracy of the positioning accuracy of the transmission clutch according to the invention is preferably carried out by means of the wheel speed sensors or wheel angle speed sensors which are present anyway.
- the accuracy of the diagnosis can be increased if it is carried out under other operating conditions which ensure that wheel slip, if possible, does not occur except as a result of the positional inaccuracy of the transmission clutch or its actuator.
- the advantage of the invention lies in the diagnosis of the positioning accuracy without additional sensors.
- FIG. 1 schematically shows a temporarily four-wheel-drive vehicle with a transmission clutch that can be set via a control unit, using the example of a motor vehicle that is fundamentally rear-wheel-drive with a front-wheel drive that can be activated via a transmission clutch,
- FIG. 3b shows a typical course of so-called slip curves for the wheels of the front axle and for the wheels of the rear axle.
- FIG. 1 shows a temporarily four-wheel-drive vehicle in the form of a motor vehicle that is fundamentally rear-wheel-driven with a front-wheel drive that can be connected via a transmission clutch 1, if necessary.
- the transmission clutch 1 is adjustable via a control unit 8.
- the control unit 8 can contain an outsourced additional control device 10 which, for example, converts the predetermined target clutch torque MK SOII into a current for actuating the adjusting unit of the transmission clutch 1.
- a characteristic curve is preferably stored in the control unit 8 or in the additional control device 10 (if present), which assigns a defined adjustment path ⁇ of the actuator to a desired clutch torque MK SO II (see FIG. 2, solid line).
- the rear wheels 6 and 7 are the primary drive wheels since they are permanently connected to the drive unit 9.
- the drive unit 9 With increasing clutch torque on the transmission clutch 1, the drive unit 9 also drives the wheels 4 and 5 of the front axle 2.
- the front wheels 4 and 5 are the secondary drive wheels.
- the control unit 8 For variable torque distribution or for determining a predetermined clutch torque M Kso i ⁇ , the control unit 8 additionally detects the wheel speeds or wheel angular velocities W V L, WHL, VR, WHR of all wheels 4, 5, 6, 7 in addition to further input signals For this purpose, the control unit 8 detects or ascertains, for example, the vehicle speed VFZ G , the steering angle LW and the accelerator pedal value FP.
- the angular velocity of the drive shaft to the front axle WA and the angular velocity of the drive shaft to the rear axle W H A is calculated from the wheel angle speeds WVL, H L, WVR, W H R recorded anyway. If a difference between the angular speeds WA and WHA is detected in the control unit 8 or in the additional control device 10, the transmission clutch 1 is slipping.
- the total drive torque MA is dependent on the predefined setpoint clutch torque MK SO II or depending on the adjustment path ⁇ of the actuator of the transmission clutch 1 resulting from the setpoint clutch torque MKSOII in FIG. 2 into a drive torque transmitted by the front axle MA and divided into a drive torque MA transmitted from the rear axle.
- the partially set clutch torque MKUPP corresponds to the drive torque MVA transmitted from the front axle.
- an adjustment path ⁇ is specified which, according to the characteristic curve mentioned, leads to the transmission clutch 1 not being fully locked; ie the transmission clutch 1 should slip.
- Stable running wheels are ensured if e.g. B. equal tire longitudinal stiffnesses k are present on the wheels of the front axle and the wheels of the rear axle; ie with a view to FIGS. 3a and 3b, that the diagnosis according to the invention is carried out only in the linear region LB of the slip curves.
- the control unit calculates the actual clutch torque MKUPP only from the drive slip SI V A on the front axle, the drive slip SIHA on the rear axle and the total drive torque MKAR ZB using the following formula:
- the drive slip on the front axle SIVA and on the rear axle SIHA can be measured or calculated via the wheel angle speeds WVL, WHL, W V R, W H R.
- the adjustment path ⁇ corresponding to a partially locked state according to the characteristic curve or the slip plausibility monitoring according to the invention is preferably only specified under defined further operating conditions, which in particular cannot be the cause of the occurrence of slip on one or more wheels. At least the following operating conditions are particularly advantageous for this:
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006530104A JP2007508171A (ja) | 2003-10-08 | 2004-10-06 | 少なくとも一時的に四輪稼動される自動車用の制御システム |
DE502004005719T DE502004005719D1 (de) | 2003-10-08 | 2004-10-06 | Steuersystem für ein zumindest zeitweise vierradgetriebenes kraftfahrzeug |
EP04790151A EP1670660B1 (de) | 2003-10-08 | 2004-10-06 | Steuersystem für ein zumindest zeitweise vierradgetriebenes kraftfahrzeug |
US11/397,559 US7357208B2 (en) | 2003-10-08 | 2006-04-05 | Control system for an at least temporarily four wheel-driven motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10346671A DE10346671A1 (de) | 2003-10-08 | 2003-10-08 | Steuersystem für ein zumindest zeitweise vierradgetriebenes Kraftfahrzeug |
DE10346671.1 | 2003-10-08 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/397,559 Continuation US7357208B2 (en) | 2003-10-08 | 2006-04-05 | Control system for an at least temporarily four wheel-driven motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005035296A1 true WO2005035296A1 (de) | 2005-04-21 |
Family
ID=34428230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/011167 WO2005035296A1 (de) | 2003-10-08 | 2004-10-06 | Steuersystem für ein zumindest zeitweise vierradgetriebenes kraftfahrzeug |
Country Status (7)
Country | Link |
---|---|
US (1) | US7357208B2 (de) |
EP (1) | EP1670660B1 (de) |
JP (1) | JP2007508171A (de) |
AT (1) | ATE380704T1 (de) |
DE (2) | DE10346671A1 (de) |
ES (1) | ES2294552T3 (de) |
WO (1) | WO2005035296A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009048113A1 (de) | 2009-10-02 | 2011-04-07 | Kurt-Schwabe-Institut für Mess- und Sensortechnik e.V. Meinsberg | Sensorgestütztes Mikroreaktorsystem |
USD777564S1 (en) | 2015-03-13 | 2017-01-31 | Liberty Hardware Mfg. Corp. | Carton divider |
US9907415B2 (en) | 2015-03-13 | 2018-03-06 | Liberty Hardware Mfg. Corp. | Article divider assembly |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006029741B4 (de) * | 2005-06-29 | 2015-10-01 | Engineering Center Steyr Gmbh & Co. Kg | Verfahren zum Kalibrieren einer steuerbaren Reibungskupplung im Antriebsstrang eines Allradfahrzeuges |
DE102007038151A1 (de) | 2007-08-13 | 2009-02-19 | Magna Powertrain Ag & Co Kg | Verfahren zum Nachjustieren eines Aktuators einer Allradkupplung |
JP5125969B2 (ja) * | 2008-10-07 | 2013-01-23 | 日産自動車株式会社 | 駆動力配分装置のトランクション伝動容量制御装置 |
DE102009022240A1 (de) * | 2009-05-22 | 2011-02-24 | Magna Powertrain Ag & Co Kg | Verfahren zum Klassieren einer Kupplungseinheit |
DE102010036859A1 (de) | 2010-08-05 | 2012-02-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren und Vorrichtung zur Regelung einer Drehmomentenverteilung einer Allradkupplung für ein zumindest wahlweise vierradangetriebenes Kraftfahrzeug |
DE102010036857B4 (de) * | 2010-08-05 | 2020-02-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zur Regelung einer Drehmomentenverteilung einer Allradkupplung für ein zumindest wahlweise vierradangetriebenes Kraftfahrzeug |
DE102010036860A1 (de) | 2010-08-05 | 2012-02-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zum Ermitteln einer tatsächlichen Drehmomentenverteilung einer Allradkupplungsvorrichtung eines zumindest wahlweise vierradangetriebenen Kraftfahrzeuges |
DE102017008949A1 (de) * | 2017-09-25 | 2019-03-28 | Lucas Automotive Gmbh | Radschlupfregelung für ein Kraftfahrzeug |
DE102021112481A1 (de) | 2021-05-12 | 2022-11-17 | Bayerische Motoren Werke Aktiengesellschaft | Steuervorrichtung zum Betrieb eines straßengekoppelten Hybridfahrzeuges |
Citations (4)
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EP0319830A1 (de) * | 1987-11-30 | 1989-06-14 | Nissan Motor Co., Ltd. | Vorrichtung zur Antriebskraftverteilung bei Fahrzeugen mit Vierradantrieb |
WO2002018814A1 (de) * | 2000-08-30 | 2002-03-07 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Verfahren und vorrichtung zum aktualisieren einer bezugsposition eines stellgliedes einer kupplungsstelleinrichtung |
EP1203687A1 (de) * | 2000-11-01 | 2002-05-08 | Bayerische Motoren Werke Aktiengesellschaft | Steuersystem zur variablen Drehmomentverteilung |
EP1270305A2 (de) * | 2001-06-26 | 2003-01-02 | Nissan Motor Company, Limited | Antriebskraftsteuerungsgerät und -verfahren für ein vierrad- getriebenes Fahrzeug |
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JPS6231529A (ja) * | 1985-08-05 | 1987-02-10 | Nissan Motor Co Ltd | 4輪駆動車の駆動力配分制御装置 |
JP2517911B2 (ja) * | 1986-06-10 | 1996-07-24 | トヨタ自動車株式会社 | 四輪駆動装置の制御方法 |
JP2518228B2 (ja) * | 1986-09-29 | 1996-07-24 | トヨタ自動車株式会社 | 四輪駆動装置の制御方法 |
JPH0635261B2 (ja) * | 1986-12-03 | 1994-05-11 | 日産自動車株式会社 | 四輪駆動車の駆動力配分制御装置 |
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JP3275564B2 (ja) * | 1994-09-21 | 2002-04-15 | 日産自動車株式会社 | 車両のトランスファ装置 |
JP3275563B2 (ja) * | 1994-09-21 | 2002-04-15 | 日産自動車株式会社 | 車両の四輪駆動制御装置 |
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JP3405052B2 (ja) * | 1996-03-21 | 2003-05-12 | 日産自動車株式会社 | 駆動力配分制御装置 |
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JP4116735B2 (ja) * | 1999-06-02 | 2008-07-09 | 本田技研工業株式会社 | 四輪駆動車両における駆動力制御装置 |
DE10260196A1 (de) * | 2002-12-20 | 2004-07-01 | Bayerische Motoren Werke Ag | Verfahren zum Steuern einer schaltbaren Kupplung in einem Antriebsstrang eines Kraftfahrzeugs mit Vierradantrieb |
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US7188017B2 (en) * | 2004-02-09 | 2007-03-06 | Ford Global Technologies, Llc | Method and apparatus for controlling a transfer case clutch to improve vehicle handling |
-
2003
- 2003-10-08 DE DE10346671A patent/DE10346671A1/de not_active Withdrawn
-
2004
- 2004-10-06 ES ES04790151T patent/ES2294552T3/es active Active
- 2004-10-06 AT AT04790151T patent/ATE380704T1/de active
- 2004-10-06 EP EP04790151A patent/EP1670660B1/de active Active
- 2004-10-06 WO PCT/EP2004/011167 patent/WO2005035296A1/de active IP Right Grant
- 2004-10-06 DE DE502004005719T patent/DE502004005719D1/de active Active
- 2004-10-06 JP JP2006530104A patent/JP2007508171A/ja active Pending
-
2006
- 2006-04-05 US US11/397,559 patent/US7357208B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0319830A1 (de) * | 1987-11-30 | 1989-06-14 | Nissan Motor Co., Ltd. | Vorrichtung zur Antriebskraftverteilung bei Fahrzeugen mit Vierradantrieb |
WO2002018814A1 (de) * | 2000-08-30 | 2002-03-07 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Verfahren und vorrichtung zum aktualisieren einer bezugsposition eines stellgliedes einer kupplungsstelleinrichtung |
EP1203687A1 (de) * | 2000-11-01 | 2002-05-08 | Bayerische Motoren Werke Aktiengesellschaft | Steuersystem zur variablen Drehmomentverteilung |
DE10054023A1 (de) | 2000-11-01 | 2002-05-08 | Bayerische Motoren Werke Ag | Steuersytem zur variablen Drehmomentverteilung |
EP1270305A2 (de) * | 2001-06-26 | 2003-01-02 | Nissan Motor Company, Limited | Antriebskraftsteuerungsgerät und -verfahren für ein vierrad- getriebenes Fahrzeug |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009048113A1 (de) | 2009-10-02 | 2011-04-07 | Kurt-Schwabe-Institut für Mess- und Sensortechnik e.V. Meinsberg | Sensorgestütztes Mikroreaktorsystem |
USD777564S1 (en) | 2015-03-13 | 2017-01-31 | Liberty Hardware Mfg. Corp. | Carton divider |
US9907415B2 (en) | 2015-03-13 | 2018-03-06 | Liberty Hardware Mfg. Corp. | Article divider assembly |
Also Published As
Publication number | Publication date |
---|---|
DE10346671A1 (de) | 2005-05-12 |
ATE380704T1 (de) | 2007-12-15 |
EP1670660B1 (de) | 2007-12-12 |
US7357208B2 (en) | 2008-04-15 |
DE502004005719D1 (de) | 2008-01-24 |
US20060180374A1 (en) | 2006-08-17 |
JP2007508171A (ja) | 2007-04-05 |
EP1670660A1 (de) | 2006-06-21 |
ES2294552T3 (es) | 2008-04-01 |
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