WO2005007475A1 - Elektronisches regelverfahren für eine schlupfgeregelte kraftfahrzeugbremsanlage - Google Patents
Elektronisches regelverfahren für eine schlupfgeregelte kraftfahrzeugbremsanlage Download PDFInfo
- Publication number
- WO2005007475A1 WO2005007475A1 PCT/EP2004/051414 EP2004051414W WO2005007475A1 WO 2005007475 A1 WO2005007475 A1 WO 2005007475A1 EP 2004051414 W EP2004051414 W EP 2004051414W WO 2005007475 A1 WO2005007475 A1 WO 2005007475A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- pressure
- control method
- generator voltage
- switch
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/42—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure, i.e. closed systems
- B60T8/4275—Pump-back systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/3655—Continuously controlled electromagnetic valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/404—Control of the pump unit
- B60T8/4059—Control of the pump unit involving the rate of delivery
Definitions
- the invention relates to an electronic control method for a slip-controlled motor vehicle brake system, comprising a distribution device with an electronic unit (ECU) and with a hydraulic unit (HCU) comprising a receiving body for hydraulic components such as in particular electrohydraulic inlet and outlet valves for wheel brakes, which are organized in brake circuits, and with a Motor-pump unit with an electric motor, in particular for returning hydraulic fluid from wheel brakes in the direction of a pressure transducer, with an anti-lock control system using pressure build-up, pressure maintenance and pressure reduction switch positions of the electrohydraulic inlet and pressure switch positions evaluated by a vehicle driver using the pressure transducer in the brake system Exhaust valves is enabled.
- ECU electronic unit
- HCU hydraulic unit
- the coil current of the wheel inlet valve is set as a function of the differential pressure on the valve body in such a way that an opening gap on the valve body initially allows a metered throttling effect, and only then reaches an open position.
- the throttling effect described avoids high and consequently noise-intensive pressure build-up gradients.
- the noise level is reduced. High differential pressures on the valve body require a relatively high residual current in the valve coil in order to pass through the pressure gradient on the valve body to limit the throttle effect to an adequate level.
- An ABS brake system for carrying out the described method requires at least four pressure sensors in the area of the wheel brakes and at least one pressure sensor to record the pressure applied by the driver, as well as a correspondingly complex data processing.
- the invention is based on the object of specifying a method which allows a sufficiently precise estimate of the pressure difference at the valve body without complex pressure measurement.
- it is an object of the present invention to enable noise-optimized operation of the brake system and in particular to reduce the number of pressure sensors required in the brake system.
- the object is achieved in accordance with the invention by the electronics unit supplying the motor with modulated electrical switch-on and / or switch-off phases for the purpose of speed control, wherein during a switch-off phase a generator voltage generated by the motor is tapped which is supplied to the electronic unit on the basis of the determined values
- Generator voltage estimates the upstream pressure in the brake system to enable noise-optimized control of the electrohydraulic intake and exhaust valves.
- a modulated motor control is addressed in the present application, this should in principle be understood to mean a PWM control.
- the invention is based on the basic idea of using a change in speed (speed reduction) which the motor-pump unit experiences during a switch-off phase of the motor as a yardstick for the system form, and to use the information and knowledge obtained in this way for noise-optimized control of the electromagnetic valves.
- the change in speed is simply recorded using the generator voltage output.
- neither an engine speed sensor nor a pressure sensor in the area of a master brake cylinder is required.
- the tapped generator voltage is viewed and evaluated in a defined time interval in order to assess the stopping behavior of the motor-pump unit. It has been shown that the measurement of the generator voltage within the predetermined time interval is sufficient to enable a noise-optimized special control of the electro-hydraulic valves.
- the stopping behavior of the motor-pump unit is assessed solely by evaluating the amount of the generator voltage gradient within the defined time interval. This limits the influence of measurement errors, outliers or other short-term disturbances in the voltage curve, and still enables a meaningful, quantified statement.
- Fig. 5 is a graph showing the relationship between system voltage U, terminal voltage O oa U___ generator voltage and rotational speed of a motor-pump unit n,
- Fig. 6 is a diagram to illustrate terminal voltage
- Fig. 7 is a graph to illustrate the relationship between voltage U and pressure increase ⁇ p.
- the brake system 1 shows an example of a brake circuit of a slip-controlled motor vehicle brake system 1, only one wheel brake circuit being shown.
- the brake system 1 comprises a brake device with a hydraulic pressure transmitter 3 in the form of a master brake cylinder, which comprises a hydraulic unit 6 and an electronic unit 7 with a hydraulic unit 4 and a distribution device 5 Wheel brake 8 is connected.
- the hydraulic unit 6 has a receiving body for hydraulic and electrohydraulic components such as electromagnetically actuated inlet and outlet valves 9, 10 for each wheel brake 8. In the connection - before an inlet valve for the said wheel brake, which is open when de-energized - there is a branch 11 to a second one Wheel brake circuit.
- a return connection 12 leads via the exhaust valve 10, which is closed when de-energized, to a low-pressure accumulator 13, which can hold a volume drained from the wheel brake 8 as a result of ABS control cycles.
- the low-pressure accumulator 13 feeds a suction side of a motor-driven pump 14.
- This is preferably of the radial piston pump type and has a suction valve on the suction side and a pressure valve on one pressure side.
- the brake system can have additional functionalities, such as traction control (ASR) or driving stability control (ESP), which requires a solenoid valve that is upstream of the inlet valve 9 and can be opened electromagnetically and de-energized.
- ASR traction control
- ESP driving stability control
- the following description is based on the example of a noise-optimized control of A / D inlet valves 9, although other possible uses are also conceivable without departing from the invention.
- EBV electronic brake force distribution
- the return pump can thus - depending on the storage level - enable the empty delivery of the low pressure accumulator.
- the electric motor 15 of the pump 14 is basically based on an externally excited direct current machine - in particular a permanent magnet excited commutator machine - the speed of which is controlled via pulse width modulation (PWM) of a constant terminal voltage U ⁇ ⁇ .
- PWM pulse width modulation
- the duration of the switch-on and switch-off phases according to the speed specification ( Requested_Pump_Speed) modulated in steps.
- the speed control of the motor 15 in ABS operation takes place as a function of the calculated volume throughput or the degree of filling of the low-pressure accumulator 13 (NDS model).
- the pulse-width-modulated terminal voltage (U ⁇ _) is generated as an regulator signal by means of an analog-digital converter. In the PWM switch-on phase, this signal corresponds approximately to the maximum available vehicle voltage. However, during a PWM switch-off phase, the motor 15 acts as a generator and, for example, a generator voltage U can be tapped from carbon brushes, the magnitude of which can provide information about the speed level.
- Load state of the pump Depending on the delivery state of the pump 14 (delivery in 2 brake circuits, delivery in one brake circuit or empty delivery, different motor loads occur, which leads to correspondingly changed speed and voltage constellations. Because of the differences between them However, load levels are striking, they can be recognized - for example via the amount of values recorded - and taken into account in the evaluation.
- Temperature The decreasing kinematic viscosity of the brake fluid as the temperature rises means that the fluid becomes increasingly thin as the temperature rises and thus a lower load moment is generated on the pump than due to the tough brake fluid present in the cold. The lower load torque leads to higher speeds and thus lower voltage drops. The influence of temperature can also be recognized and taken into account.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/564,221 US20060202552A1 (en) | 2003-07-11 | 2004-07-08 | Electronic control method for a slip-controlled motor vehicle brake system |
EP04766161A EP1646541A1 (de) | 2003-07-11 | 2004-07-08 | Elektronisches regelverfahren für eine schlupfgeregelte kraftfahrzeugbremsanlage |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10331781 | 2003-07-11 | ||
DE10331781.3 | 2003-07-11 | ||
DE10334355.5 | 2003-07-25 | ||
DE10334355 | 2003-07-25 | ||
DE10355239A DE10355239A1 (de) | 2003-07-25 | 2003-11-26 | Elektronisches Regelverfahren für eine schlupfgeregelte Kraftfahrzeugbremsanlage |
DE10355239.1 | 2003-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005007475A1 true WO2005007475A1 (de) | 2005-01-27 |
Family
ID=34084091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/051414 WO2005007475A1 (de) | 2003-07-11 | 2004-07-08 | Elektronisches regelverfahren für eine schlupfgeregelte kraftfahrzeugbremsanlage |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060202552A1 (de) |
EP (1) | EP1646541A1 (de) |
WO (1) | WO2005007475A1 (de) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005041556A1 (de) * | 2005-09-01 | 2007-03-08 | Continental Teves Ag & Co. Ohg | Verfahren zur Bestimmung eines Vordrucks in einer Kraftfahrzeug-Bremsanlage |
DE102005055780A1 (de) * | 2005-11-21 | 2007-05-24 | Continental Teves Ag & Co. Ohg | Verfahren zur Bestimmung eines Vordrucks bei einer Kraftfahrzeug-Bremsanlage |
WO2008006845A1 (de) * | 2006-07-11 | 2008-01-17 | Continental Teves Ag & Co. Ohg | Kraftfahrzeugbremssystem mit einem niederdruckspeicher |
WO2009053389A1 (de) * | 2007-10-24 | 2009-04-30 | Continental Teves Ag & Co. Ohg | Verfahren und vorrichtung zur kalibrierung oder diagnose einer kraftfahrzeugbremsanlage mit einer getaktet betriebenen pumpe |
CN101146703B (zh) * | 2005-03-22 | 2011-09-07 | 罗伯特·博世有限公司 | 直流电机的惯性运动电压的优化检测装置及方法 |
WO2012025336A1 (de) * | 2010-08-26 | 2012-03-01 | Continental Teves Ag & Co. Ohg | Verfahren zur drucksensorlosen druckmessung in einem druckregelaggregat einer kraftfarzeugbremsanlage und kraftfarzeugbremsanlage mit einemdruckregelaggragat worin das verfahren durchgeführt wird |
DE102010039822A1 (de) * | 2010-08-26 | 2012-03-01 | Continental Teves Ag & Co. Ohg | Verfahren zur Messung eines Parameters eines mit Pulsweitenmodulation angesteuerten Motors in einer Kraftfahrzeugbremsanlage |
WO2013050195A1 (de) | 2011-10-06 | 2013-04-11 | Continental Teves Ag & Co. Ohg | Verfahren zur bestimmung eines modell-vordrucks mittels eines mathematischen modells in einem elektronisch geregelten kraftfahrzeugbremssystem |
DE102011086737A1 (de) | 2011-11-21 | 2013-05-23 | Continental Teves Ag & Co. Ohg | Verfahren zur Verbesserung einer Vordruckschätzung in einem Hydraulikstrang einer schlupfgeregelten Kraftfahrzeugbremsanlage und Hydraulikstrang einer schlupfgeregelten Kraftfahrzeugbremsanlage |
DE102012224030A1 (de) | 2012-12-20 | 2014-06-26 | Continental Teves Ag & Co. Ohg | Verfahren zur beschleunigten Ermittlung eines Korrekturwerts für eine drucksensorlose Bestimmung eines hydraulischen Drucks in einem hydraulischen Bremssystem sowie hydraulisches Bremssystem und Verwendung des Bremssystems |
DE102021105619A1 (de) | 2021-03-09 | 2022-09-15 | Audi Aktiengesellschaft | Verfahren zum Betrieb eines Kraftfahrzeugs, Kraftfahrzeug und Computerprogrammprodukt |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4457618B2 (ja) * | 2003-09-25 | 2010-04-28 | 株式会社アドヴィックス | ポンプ駆動用モータの制御装置 |
DE102006004745A1 (de) * | 2005-04-02 | 2006-11-30 | Continental Teves Ag & Co. Ohg | Hydraulische Bremsanlage mit Blockierschutzregelung |
DE102005049300A1 (de) * | 2005-10-12 | 2007-04-26 | Continental Teves Ag & Co. Ohg | Verfahren zur Bestimmung des Raddrucks in einem elektronisch ansteuerbaren Kraftfahrzeugbremsenregelungssystem |
DE102007010514A1 (de) * | 2007-03-05 | 2008-09-11 | Continental Teves & Co. Ohg | Verfahren zur Kalibrierung von analogisierten Ventilen in einer Druckregelvorrichtung |
DE102008018818A1 (de) * | 2008-04-15 | 2009-10-22 | Continental Teves Ag & Co. Ohg | Elektrisches Motoransteuerungsverfahren mit Lastmomentanpassung |
DE102010002324A1 (de) * | 2010-02-25 | 2011-08-25 | Robert Bosch GmbH, 70469 | Verfahren zum Betreiben eines Brennsystems eines Fahrzeugs sowie Bremssystem |
DE102010028909A1 (de) * | 2010-05-12 | 2011-11-17 | Continental Teves Ag & Co. Ohg | Verfahren zur Lüftspieleinstellung einer hydraulischen Bremsanlage, insbesondere für ein Kraftfahrzeug |
JP2012101676A (ja) * | 2010-11-10 | 2012-05-31 | Hitachi Automotive Systems Ltd | ブレーキ制御装置 |
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DE3819490A1 (de) * | 1988-06-08 | 1989-12-14 | Siemens Ag | Pumpsystem eines hydraulischen stellgliedes, z. b. fuer ein kfz |
WO1994007717A1 (de) * | 1992-09-25 | 1994-04-14 | Itt Automotive Europe Gmbh | Verfahren und schaltungsanordnung zur regelung der förderleistung einer hydraulikpumpe |
WO1994018041A1 (de) * | 1993-02-04 | 1994-08-18 | Itt Automotive Europe Gmbh | Verfahren und schaltungsanordnung zum bestimmen der pedalkraft als regelgrösse für eine bremsanlage mit blockierschutzregelung |
WO1996015927A1 (en) * | 1994-11-23 | 1996-05-30 | Bosch Braking Systems Corporation | Anti-lock braking providing pump motor duty cycle based on deceleration and motor voltage feedback |
WO1997006038A1 (de) * | 1995-08-04 | 1997-02-20 | Robert Bosch Gmbh | Verfahren und vorrichtung zur ermittlung einer druckgrösse |
DE19946777A1 (de) * | 1999-09-29 | 2001-04-12 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Abschätzung eines Vordrucks bei einer Kraftfahrzeug-Bremsanlage |
Family Cites Families (2)
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DE4037142A1 (de) * | 1990-11-22 | 1992-05-27 | Bosch Gmbh Robert | Elektromotorisch betriebene hydropumpe |
EP1093427B1 (de) * | 1998-07-09 | 2004-11-10 | Continental Teves AG & Co. oHG | Verfahren und vorrichtung zur bremsdruckeinstellung und zum öffnen eines einlassventils |
-
2004
- 2004-07-08 EP EP04766161A patent/EP1646541A1/de not_active Withdrawn
- 2004-07-08 WO PCT/EP2004/051414 patent/WO2005007475A1/de not_active Application Discontinuation
- 2004-07-08 US US10/564,221 patent/US20060202552A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3819490A1 (de) * | 1988-06-08 | 1989-12-14 | Siemens Ag | Pumpsystem eines hydraulischen stellgliedes, z. b. fuer ein kfz |
WO1994007717A1 (de) * | 1992-09-25 | 1994-04-14 | Itt Automotive Europe Gmbh | Verfahren und schaltungsanordnung zur regelung der förderleistung einer hydraulikpumpe |
WO1994018041A1 (de) * | 1993-02-04 | 1994-08-18 | Itt Automotive Europe Gmbh | Verfahren und schaltungsanordnung zum bestimmen der pedalkraft als regelgrösse für eine bremsanlage mit blockierschutzregelung |
WO1996015927A1 (en) * | 1994-11-23 | 1996-05-30 | Bosch Braking Systems Corporation | Anti-lock braking providing pump motor duty cycle based on deceleration and motor voltage feedback |
WO1997006038A1 (de) * | 1995-08-04 | 1997-02-20 | Robert Bosch Gmbh | Verfahren und vorrichtung zur ermittlung einer druckgrösse |
DE19946777A1 (de) * | 1999-09-29 | 2001-04-12 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Abschätzung eines Vordrucks bei einer Kraftfahrzeug-Bremsanlage |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101146703B (zh) * | 2005-03-22 | 2011-09-07 | 罗伯特·博世有限公司 | 直流电机的惯性运动电压的优化检测装置及方法 |
WO2007025951A1 (de) * | 2005-09-01 | 2007-03-08 | Continental Teves Ag & Co. Ohg | Verfahren zur bestimmung eines vordrucks in einer kraftfahrzeug-bremsanlage |
DE102005041556A1 (de) * | 2005-09-01 | 2007-03-08 | Continental Teves Ag & Co. Ohg | Verfahren zur Bestimmung eines Vordrucks in einer Kraftfahrzeug-Bremsanlage |
US8205948B2 (en) * | 2005-09-01 | 2012-06-26 | Continental Teves Ag & Co., Ohg | Method of determining an initial pressure in a motor vehicle brake system |
DE102005055780A1 (de) * | 2005-11-21 | 2007-05-24 | Continental Teves Ag & Co. Ohg | Verfahren zur Bestimmung eines Vordrucks bei einer Kraftfahrzeug-Bremsanlage |
WO2008006845A1 (de) * | 2006-07-11 | 2008-01-17 | Continental Teves Ag & Co. Ohg | Kraftfahrzeugbremssystem mit einem niederdruckspeicher |
US7931345B2 (en) | 2006-07-11 | 2011-04-26 | Continental Teves Ag & Co. Ohg | Motor vehicle brake system having a low pressure accumulator |
KR101373950B1 (ko) * | 2006-07-11 | 2014-03-12 | 콘티넨탈 테베스 아게 운트 코. 오하게 | 저압 축압기를 갖는 모터 차량 브레이크 시스템 |
US8301331B2 (en) | 2007-10-24 | 2012-10-30 | Continental Teves Ag & Co. Ohg | Method and device for the calibration or diagnosis of a motor vehicle brake system having a cyclically operated pump |
WO2009053389A1 (de) * | 2007-10-24 | 2009-04-30 | Continental Teves Ag & Co. Ohg | Verfahren und vorrichtung zur kalibrierung oder diagnose einer kraftfahrzeugbremsanlage mit einer getaktet betriebenen pumpe |
DE102010039822A1 (de) * | 2010-08-26 | 2012-03-01 | Continental Teves Ag & Co. Ohg | Verfahren zur Messung eines Parameters eines mit Pulsweitenmodulation angesteuerten Motors in einer Kraftfahrzeugbremsanlage |
US8527176B2 (en) | 2010-08-26 | 2013-09-03 | Continental Teves Ag & Co. Ohg | Method for measuring pressure in a pressure regulation unit of a motor vehicle braking system, and a motor vehicle braking system in which the method is implemented |
WO2012025336A1 (de) * | 2010-08-26 | 2012-03-01 | Continental Teves Ag & Co. Ohg | Verfahren zur drucksensorlosen druckmessung in einem druckregelaggregat einer kraftfarzeugbremsanlage und kraftfarzeugbremsanlage mit einemdruckregelaggragat worin das verfahren durchgeführt wird |
WO2013050195A1 (de) | 2011-10-06 | 2013-04-11 | Continental Teves Ag & Co. Ohg | Verfahren zur bestimmung eines modell-vordrucks mittels eines mathematischen modells in einem elektronisch geregelten kraftfahrzeugbremssystem |
DE102011084069A1 (de) | 2011-10-06 | 2013-04-11 | Continental Teves Ag & Co. Ohg | Verfahren zur Bestimmung eines Modell-Vordrucks mittels eines mathematischen Modells in einem elektronisch geregelten Kraftfahrzeugbremssystem |
US9180847B2 (en) | 2011-10-06 | 2015-11-10 | Continental Teves Ag & Co. Ohg | Method for determining a model upstream pressure by means of a mathematical model in an electronically regulated motor vehicle brake system |
DE102011086737A1 (de) | 2011-11-21 | 2013-05-23 | Continental Teves Ag & Co. Ohg | Verfahren zur Verbesserung einer Vordruckschätzung in einem Hydraulikstrang einer schlupfgeregelten Kraftfahrzeugbremsanlage und Hydraulikstrang einer schlupfgeregelten Kraftfahrzeugbremsanlage |
DE102012224030A1 (de) | 2012-12-20 | 2014-06-26 | Continental Teves Ag & Co. Ohg | Verfahren zur beschleunigten Ermittlung eines Korrekturwerts für eine drucksensorlose Bestimmung eines hydraulischen Drucks in einem hydraulischen Bremssystem sowie hydraulisches Bremssystem und Verwendung des Bremssystems |
DE102021105619A1 (de) | 2021-03-09 | 2022-09-15 | Audi Aktiengesellschaft | Verfahren zum Betrieb eines Kraftfahrzeugs, Kraftfahrzeug und Computerprogrammprodukt |
Also Published As
Publication number | Publication date |
---|---|
US20060202552A1 (en) | 2006-09-14 |
EP1646541A1 (de) | 2006-04-19 |
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