DE102008000789A1 - Method for regenerative braking of a vehicle - Google Patents
Method for regenerative braking of a vehicle Download PDFInfo
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- DE102008000789A1 DE102008000789A1 DE102008000789A DE102008000789A DE102008000789A1 DE 102008000789 A1 DE102008000789 A1 DE 102008000789A1 DE 102008000789 A DE102008000789 A DE 102008000789A DE 102008000789 A DE102008000789 A DE 102008000789A DE 102008000789 A1 DE102008000789 A1 DE 102008000789A1
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- electric machine
- pedal
- braking torque
- braking
- torque
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- 230000001172 regenerating effect Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001419 dependent effect Effects 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
Classifications
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- 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
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
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- 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
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/10—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors
-
- 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
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- 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
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
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- 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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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- 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
- B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
- B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
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- 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
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/60—Regenerative braking
- B60T2270/604—Merging friction therewith; Adjusting their repartition
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- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0019—Control system elements or transfer functions
- B60W2050/0022—Gains, weighting coefficients or weighting functions
- B60W2050/0025—Transfer function weighting factor
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0019—Control system elements or transfer functions
- B60W2050/0028—Mathematical models, e.g. for simulation
- B60W2050/0031—Mathematical model of the vehicle
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- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
-
- 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
- B60W2540/12—Brake pedal position
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- 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
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
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- 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
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/10—Longitudinal speed
- B60W2720/106—Longitudinal acceleration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum regenerativen Bremsen eines Fahrzeugs mit Hilfe einer elektrischen Maschine (2), die bei Betätigung eines Bremspedals (9) ein bestimmtes Bremsmoment (Mel) bereitstellt, wobei die elektrische Maschine (2) im Leerweg (L) des Bremspedals (9) so angesteuert wird, dass sie ein von der Stellung (s) des Bremspedals (9) abhängiges Bremsmoment (Mel) erzeugt. Eine im Verlauf der Bremsbetätigung stetig zunehmende Fahrzeugverzögerung kann erreicht werden, wenn die Aufnahmefähigkeit des elektrischen Netzes (11) oder eines daran angeschlossenen Energiespeichers (4) bestimmt und die elektrische Maschine (2) in Abhängigkeit von der aktuellen Pedalstellung (s) und der Aufnahmefähigkeit (SOC) so betrieben wird, dass das Bremsmoment stetig zunimmt.The invention relates to a method for regenerative braking of a vehicle with the aid of an electric machine (2) which provides a specific braking torque (Mel) when a brake pedal (9) is actuated, the electric machine (2) being in the free travel (L) of the brake pedal (FIG. 9) is controlled such that it generates a brake torque (Mel) which is dependent on the position (s) of the brake pedal (9). A continuously increasing vehicle deceleration in the course of the braking operation can be achieved if the capacity of the electrical network (11) or of an energy store (4) connected thereto is determined and the electric machine (2) is dependent on the current pedal position (s) and the capacity ( SOC) is operated so that the braking torque increases steadily.
Description
Stand der TechnikState of the art
Die Erfindung betrifft ein Verfahren zum regenerativen Bremsen eines Fahrzeugs gemäß dem Oberbegriff des Patentanspruchs 1 sowie ein Steuergerät gemäß dem Oberbegriff des Patentanspruchs 8.The The invention relates to a method for regenerative braking Vehicle according to the preamble of claim 1 and a control device according to the preamble of claim 8.
Bei Fahrzeugen, wie z. B. Hybridfahrzeugen, mit einer elektrischen Maschine ist es bekannt, die bei einem Bremsvorgang frei werdende kinetische Energie in elektrische Energie zu wandeln (Rekuperation). Die so gewonnene elektrische Energie wird in das elektrische Netz gespeist und kann in anderen Fahrsituationen zum Antrieb des Fahrzeugs oder zur Versorgung elektrischer Verbraucher genutzt werden. Der Wirkungsgrad des Fahrzeugs kann dadurch erheblich gesteigert werden.at Vehicles, such. As hybrid vehicles, with an electric machine It is known that released during a braking kinetic energy to convert into electrical energy (recuperation). The won electrical energy is fed into the electrical grid and can in other driving situations to drive the vehicle or to supply electrical consumers are used. The efficiency of the vehicle This can be considerably increased.
Im Rekuperationsbetrieb erzeugt die elektrische Maschine ein Bremsmoment, das von der Maschinen-Drehzahl, aber auch von der Aufnahmefähigkeit des elektrischen Netzes abhängig ist. Eine Betätigung des Bremspedals führt somit zu unterschiedlichen Fahrzeugverzögerungen bei gleicher Pedalstellung. Um solche Schwankungen auszugleichen, sind aus dem Stand der Technik so genannte „koordinierte rekuperative Bremssysteme (CRBS)” bekannt. Diese Systeme ermitteln den Anteil am Fahrer-Bremswunsch, der von der elektrischen Maschine umgesetzt werden kann, und betätigen die Betriebsbremse, wie z. B. eine hydraulische Radbremse derart, dass insgesamt der Fahr-Bremswunsch erfüllt wird. Sinkt nun das Bremsmoment der elektrischen Maschine, weil das Bordnetz z. B. keine Leistung mehr aufnehmen kann, so erfolgt eine automatische Kompensation durch ein höheres Verzögerungsmoment der Reibbremse. Dieser Vorteil einer Reproduzierbarkeit des Bremsverhaltens bei einer bestimmten Pedalstellung wird jedoch mit erhöhten Systemkosten durch den Kommunikationsaufwand zwischen den beiden Bremssystemen sowie Hard- und Softwareänderungen an Komponenten der Reibbremse erkauft.in the Recuperation operation, the electric machine generates a braking torque, that of the machine speed, but also of the absorption capacity of the electrical network is. An operation of the brake pedal leads thus to different vehicle delays at the same pedal position. To compensate for such fluctuations are known in the art so-called "coordinated Recuperative Braking Systems (CRBS) ". Detect these systems the proportion of the driver's braking request, that of the electric machine can be implemented and press the service brake, such. B. a hydraulic wheel brake such, that overall the driving brake request is fulfilled. Now drops the braking torque the electrical machine, because the electrical system z. B. no more power can take, so there is an automatic compensation by a higher one deceleration torque the friction brake. This advantage of a reproducibility of the braking behavior at a certain pedal position, however, is associated with increased system costs through the communication effort between the two braking systems as well as hardware and software changes purchased at components of the friction brake.
Aus
dem Stand der Technik sind auch günstigere Bremssysteme bekannt,
bei denen keine Kommunikation zwischen der regenerativen Bremse
und der Reibbremse stattfindet. Bei diesen Bremssystemen wird üblicherweise
der Leerweg des Bremspedals (also der anfängliche Weg des Bremspedals
bis zu einem Druckpunkt, ab dem die Reibbremse anspricht) genutzt,
um regenerativ zu bremsen. Ein solches System ist beispielhaft in
den
Offenbarung der ErfindungDisclosure of the invention
Es ist somit die Aufgabe der vorliegenden Erfindung, ein Verfahren zum regenerativen Bremsen eines Fahrzeugs zu schaffen, bei dem das Bremsmoment der elektrischen Maschine im Leerweg des Bremspedals, unabhängig vom Ladezustand des Bordnetzes, stetig zunimmt.It is thus the object of the present invention, a method to provide regenerative braking of a vehicle in which the Braking torque of the electric machine in the free travel of the brake pedal, independently from the state of charge of the electrical system, steadily increasing.
Gelöst wird diese Aufgabe gemäß der Erfindung durch die im Patenanspruch 1 angegebenen Merkmale. Weitere Ausgestaltungen der Erfindung sind Gegenstand von Unteransprüchen.Is solved this task according to the invention by the features specified in claim 1. Further embodiments The invention are the subject of subclaims.
Ein wesentlicher Aspekt der Erfindung besteht darin, das generatorische Moment im Leerweg des Bremspedals in Abhängigkeit von der Aufnahmefähigkeit des elektrischen Netzes und der Pedalstellung so einzustellen, dass das Moment mit zunehmendem Pedalweg bis zum Ende des Leerwegs stetig zunimmt.One essential aspect of the invention is the regenerative Moment in the free travel of the brake pedal as a function of the absorption capacity of the electrical network and the pedal position so that the moment with increasing pedal travel until the end of Leerweg steadily increases.
Gemäß einer bevorzugten Ausführungsform der Erfindung wird die elektrische Maschine derart betrieben, dass das generatorische Bremsmoment mit zunehmendem Pedalweg linear zunimmt.According to one preferred embodiment of Invention, the electric machine is operated such that the regenerative braking torque increases linearly with increasing pedal travel.
Am Ende des Leerwegs ist vorzugsweise ein Maximum des generatorischen Moments erreicht.At the End of the idle travel is preferably a maximum of the regenerative Moments reached.
Gemäß einer ersten Ausführungsform der Erfindung wird die Pedalbetätigung bei einem Bremsvorgang gemessen und in Abhängigkeit von der Pedalstellung ein maximales generatorisches Moment bestimmt, das bei einem ausreichend aufnahmefähigen Bordnetz erzeugt werden könnte. Dieser Wert wird mit einem Faktor gewichtet, der die tatsächliche, aktuelle Aufnahmefähigkeit des elektrischen Netzes oder des Energiespeichers berücksichtigt. Das Ergebnis repräsentiert ein Soll-Bremsmoment, auf das die elektrische Maschine geregelt wird.According to one first embodiment The invention is the pedal operation measured during a braking operation and depending on the pedal position a maximum regenerative torque is determined at a sufficient receptive Electrical system could be generated. This value is weighted by a factor that is the actual, current receptivity of the electrical network or energy storage. The result represents a desired braking torque to which the electric machine is regulated becomes.
Der Wert für das maximale generatorische Moment wird vorzugsweise aus einer entsprechenden Momenten-Kennlinie ausgelesen.Of the Value for the maximum regenerative torque is preferably from a corresponding Torque characteristic read out.
Der vorstehend genannte Gewichtungsfaktor kann beispielsweise als Verhältnis zwischen einer im aktuellen Betriebszustand maximal in das Netz einspeisbaren elektrischen Leistung und einer maximalen Generatorleistung (bei ausreichend aufnahmefähigem Netz) gebildet werden. Wahlweise könnte der Gewichtungsfaktor z. B. auch aus entsprechenden generatorischen Momenten gebildet werden.Of the The aforementioned weighting factor can be used, for example, as a ratio between a maximum in the current operating state can be fed into the grid electrical power and maximum generator power (at sufficiently receptive Net). Optionally, the weighting factor could z. B. also formed from corresponding regenerative moments become.
Gemäß einer zweiten Ausführungsform der Erfindung wird ein maximales generatorisches Moment bestimmt, das im aktuellen Ladezustand der Batterie umgesetzt werden kann. Dieser Wert wird schließlich mit einem Faktor gewichtet, der eine Funktion der aktuellen Pedalstellung ist. Der gewichtete Wert stellt wieder ein generatorisches Soll-Bremsmoment dar, auf das die elektrische Maschine geregelt wird.According to one second embodiment the invention determines a maximum regenerative moment, which can be implemented in the current state of charge of the battery. This value eventually becomes weighted with a factor that is a function of the current pedal position is. The weighted value again represents a regenerative setpoint braking torque, on which the electric machine is regulated.
Der Gewichtungsfaktor hat vorzugsweise Werte zwischen 0 und 1.Of the Weighting factor preferably has values between 0 and 1.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Erfindung wird nachstehend anhand der beigefügten Zeichnungen beispielhaft näher erläutert. Es zeigen:The Invention will be exemplified below with reference to the accompanying drawings explained in more detail. It demonstrate:
Ausführungsformen der ErfindungEmbodiments of the invention
Bezüglich der
Erläuterungen
der
Wie
in
Zur
Bestimmung des Batterie-Ladezustandes ist eine bekannte Zustandserkennungseinrichtung
Claims (8)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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DE102008000789A DE102008000789A1 (en) | 2008-03-20 | 2008-03-20 | Method for regenerative braking of a vehicle |
PCT/EP2009/050761 WO2009115358A2 (en) | 2008-03-20 | 2009-01-23 | Method for regenerative braking of a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102008000789A DE102008000789A1 (en) | 2008-03-20 | 2008-03-20 | Method for regenerative braking of a vehicle |
Publications (1)
Publication Number | Publication Date |
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DE102008000789A1 true DE102008000789A1 (en) | 2009-09-24 |
Family
ID=40849298
Family Applications (1)
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DE102008000789A Withdrawn DE102008000789A1 (en) | 2008-03-20 | 2008-03-20 | Method for regenerative braking of a vehicle |
Country Status (2)
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DE (1) | DE102008000789A1 (en) |
WO (1) | WO2009115358A2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010045005A1 (en) * | 2010-09-10 | 2012-03-15 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for braking vehicle by electrically and mechanically acting brake, involves actuating electrically-acting brake by actuation of brake pedal within brake pedal idle path |
DE102010061439A1 (en) | 2010-12-21 | 2012-06-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Brake system e.g. electro-hydraulic disk brake system, for hybrid car, has pedal simulator applying return force corresponding to condition of system, where predetermined and constant braking effect is generated in operation area of pedal |
DE102010061438A1 (en) | 2010-12-21 | 2012-06-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Brake system e.g. electro-hydraulic friction brake system, for e.g. electric car, has brake control device axle-individually and/or wheel-individually distributing braking force, which corresponds to position of brake pedal |
DE102011108446A1 (en) * | 2011-07-23 | 2013-01-24 | Volkswagen Ag | Method for recuperation of vehicle, involves detecting automatically slope of road, on which vehicle travels, where recuperation power of recuperation of vehicle is set depending on detected slope |
WO2013087481A1 (en) * | 2011-12-14 | 2013-06-20 | Volkswagen Aktiengesellschaft | Method and device for setting a braking torque of at least one friction brake of a wheel |
DE102012209157A1 (en) * | 2012-05-31 | 2013-12-05 | Siemens Aktiengesellschaft | Control device for braking system of e.g. electrical vehicle, has brake control which generates mechanical braking force target value and electric brake force reference value for operating mechanical service brake and electric brake |
WO2020224929A1 (en) * | 2019-05-08 | 2020-11-12 | Volkswagen Aktiengesellschaft | Method and system for assisting a driver during operation of a vehicle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10332207A1 (en) * | 2003-07-16 | 2005-02-03 | Daimlerchrysler Ag | Method for controlling a brake system and brake system for a vehicle |
DE102004025830B4 (en) * | 2004-05-24 | 2024-06-20 | Volkswagen Ag | Method for operating a hybrid vehicle |
DE102006019494A1 (en) * | 2006-04-26 | 2007-10-31 | Siemens Ag | Brake system for vehicle e.g. hybrid car, has mechanical brake and electrical brakes, where electrical brakes are activated and subsequently mechanical brake is activated based on operation of brake operating device |
-
2008
- 2008-03-20 DE DE102008000789A patent/DE102008000789A1/en not_active Withdrawn
-
2009
- 2009-01-23 WO PCT/EP2009/050761 patent/WO2009115358A2/en active Application Filing
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010045005A1 (en) * | 2010-09-10 | 2012-03-15 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for braking vehicle by electrically and mechanically acting brake, involves actuating electrically-acting brake by actuation of brake pedal within brake pedal idle path |
DE102010045005B4 (en) * | 2010-09-10 | 2015-04-30 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Device for braking a vehicle |
DE102010061439A1 (en) | 2010-12-21 | 2012-06-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Brake system e.g. electro-hydraulic disk brake system, for hybrid car, has pedal simulator applying return force corresponding to condition of system, where predetermined and constant braking effect is generated in operation area of pedal |
DE102010061438A1 (en) | 2010-12-21 | 2012-06-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Brake system e.g. electro-hydraulic friction brake system, for e.g. electric car, has brake control device axle-individually and/or wheel-individually distributing braking force, which corresponds to position of brake pedal |
DE102011108446A1 (en) * | 2011-07-23 | 2013-01-24 | Volkswagen Ag | Method for recuperation of vehicle, involves detecting automatically slope of road, on which vehicle travels, where recuperation power of recuperation of vehicle is set depending on detected slope |
DE102011108446B4 (en) | 2011-07-23 | 2019-12-12 | Volkswagen Ag | Method and device for recuperation for a vehicle |
WO2013087481A1 (en) * | 2011-12-14 | 2013-06-20 | Volkswagen Aktiengesellschaft | Method and device for setting a braking torque of at least one friction brake of a wheel |
CN103987594A (en) * | 2011-12-14 | 2014-08-13 | 大众汽车有限公司 | Method and device for setting braking torque of at least one friction brake of wheel |
CN103987594B (en) * | 2011-12-14 | 2017-03-08 | 大众汽车有限公司 | Method and apparatus for adjusting the braking moment of at least one friction brake of wheel |
DE102012209157A1 (en) * | 2012-05-31 | 2013-12-05 | Siemens Aktiengesellschaft | Control device for braking system of e.g. electrical vehicle, has brake control which generates mechanical braking force target value and electric brake force reference value for operating mechanical service brake and electric brake |
DE102012209157B4 (en) | 2012-05-31 | 2023-05-04 | Meritor Electric Vehicles Germany Gmbh | Intelligent braking system in electrically powered vehicles or hybrid vehicles |
WO2020224929A1 (en) * | 2019-05-08 | 2020-11-12 | Volkswagen Aktiengesellschaft | Method and system for assisting a driver during operation of a vehicle |
Also Published As
Publication number | Publication date |
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WO2009115358A3 (en) | 2010-05-06 |
WO2009115358A2 (en) | 2009-09-24 |
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