DE102019003664A1 - Recuperation system - Google Patents
Recuperation system Download PDFInfo
- Publication number
- DE102019003664A1 DE102019003664A1 DE102019003664.6A DE102019003664A DE102019003664A1 DE 102019003664 A1 DE102019003664 A1 DE 102019003664A1 DE 102019003664 A DE102019003664 A DE 102019003664A DE 102019003664 A1 DE102019003664 A1 DE 102019003664A1
- Authority
- DE
- Germany
- Prior art keywords
- recuperation system
- generator
- wheels
- clutches
- recuperation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/18—Controlling the braking effect
-
- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2054—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed by controlling transmissions or clutches
-
- 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
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/58—Combined or convertible systems
- B60T13/585—Combined or convertible systems comprising friction brakes and retarders
- B60T13/586—Combined or convertible systems comprising friction brakes and retarders the retarders being of the electric type
-
- 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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D61/00—Brakes with means for making the energy absorbed available for use
-
- 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
-
- 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
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulating Braking Force (AREA)
Abstract
Rekuperationssystem für ein nicht angetriebenes Anhängerfahrzeug, mit einem Generator, der über Antriebswellen mit den beiden Rädern einer Achse verbunden ist, dadurch gekennzeichnet, dass im Kraftfluss zwischen Generator und den Rädern zumindest eine schaltbare Kupplung angeordnet ist.Recuperation system for a non-powered trailer vehicle, with a generator which is connected to the two wheels of an axle via drive shafts, characterized in that at least one switchable clutch is arranged in the power flow between the generator and the wheels.
Description
Die Erfindung betrifft ein Rekuperationssystem für ein nicht angetriebenes Anhängerfahrzeug. Ein Rekuperationssystem dient dazu, Bremsenergie in elektrische Energie umzuwandeln und zu speichern. Unter dem Begriff Rekuperationssystem werden im Folgenden all die Bauteile und Module verstanden, die zum Rekuperieren erforderlich sind: Dazu zählen insbesondere ein Generator, elektrische Energiespeicher, Antriebswellen, die den Generator mit den Fahrzeugrädern verbinden, gegebenenfalls ein Übersetzungsgetriebe und eine Leistungselektronik.The invention relates to a recuperation system for a non-powered trailer vehicle. A recuperation system is used to convert braking energy into electrical energy and store it. In the following, the term recuperation system is understood to mean all the components and modules that are required for recuperation: These include, in particular, a generator, electrical energy storage devices, drive shafts that connect the generator to the vehicle wheels, possibly a transmission and power electronics.
Die Verwendung einer elektrischen Maschine zum Antrieben oder Bremsen eines Nutzfahrzeuganhängers ist in der
Auf die Verwendung von Ausgleichsgetrieben kann verzichtet werden, wenn zwei weitgehend unabhängige Antriebsstränge jeweils für das linke und rechte Rad benutzt werden. Eine solche Anordnung zeigt beispielsweise die Anordnung in der
Aufgabe der Erfindung ist es, ein kompakteres und leichteres Rekuperationssystem zu finden, mit dem zusätzlich auch das Fahrverhalten verbessert wird.The object of the invention is to find a more compact and lighter recuperation system with which the driving behavior is also improved.
Die Aufgabe wird dadurch gelöst, dass lediglich ein einziger Generator benutzt wird, dessen Generatorwelle an beiden Enden über schaltbare Kupplungen und Antriebswellen mit den beiden Rädern verbunden ist.The object is achieved in that only a single generator is used, the generator shaft of which is connected at both ends to the two wheels via switchable clutches and drive shafts.
In einer bevorzugten Ausführung gemäß
Die schaltbaren Kupplungen haben die Aufgabe, die Generatorwelle von den Achswellen bedarfsweise zu entkoppeln oder zu koppeln, so dass im geöffneten Zustand die Wellen momentenfrei gegeneinander verdrehen können und im geschlossenen Zustand die Wellen starr miteinander verbunden sind. Die Kupplungen können unter Last und Drehzahl geschaltet werden. Vorzugsweise werden Labellenkupplungen oder elektromagnetische Kupplungen eingesetzt. Die Kupplungen werden von der Fahrdynamikregelung des Fahrzeuges gesteuert und pneumatisch oder elektromagnetisch betätigt. Die Kupplungen werden je nach Fahrsituation gemäß der folgenden Logik geschaltet:
- Bei Geradeausfahrt und Kurven mit großen Radien sind bei aktiviertem Rekuperationssystem beide Kupplungen geschlossen. Kurven mit großen Radien meint autobahntypische Straßenführungen mit Kurvenradien von mehr als 500 Metern. Bei solchen Kurven beträgt die Rollradiusdifferenz von kurvenäußerem und kurveninnerem Rad wenige Promille. Die Verspannungen des kurvenäußeren und kurveninneren Rades sind in diesem Betriebszustand so gering, dass sie über den Formschlupf der Räder ausgeglichen werden, ohne dass es zu einem verschleißrelevanten Gleitschlupf in den Reifenaufstandsflächen kommt. Da Nutzfahrzeuge mit Anhängern vorwiegend im Langstreckenverkehr und nicht im innerstädtischen Verteilerverkehr eingesetzt werden, hat die Nutzungszeit des Rekuperationssystem in diesem Fahrzustand den höchsten Anteil.
- When driving straight ahead and when cornering with large radii, both clutches are closed when the recuperation system is activated. Curves with large radii means typical motorway routes with curve radii of more than 500 meters. In such bends, the difference in rolling radius between the outside and inside of the bend is a few per thousand. The tension on the outside and inside of the bend is so low in this operating state that it is compensated for by the form slip of the wheels without causing wear-relevant slip in the tire contact areas. Since commercial vehicles with trailers are mainly used in long-distance traffic and not in inner-city distribution traffic, the utilization time of the recuperation system in this driving state has the highest proportion.
Beim Befahren von Kurven mit kleineren Radien wird beim Rekuperieren vorzugsweise die Kupplung des kurvenäußeren Rades geöffnet, die Kupplung des kurveninneren Rades bleibt hingegen geschlossen. Die Rekuperation über das kurveninnere Rad erzeugt eine Bremskraft, die ein Giermoment um die Fahrzeughochachse bewirkt. Dieses Giermoment unterstützt das Einlenken des Anhängers und vermindert die Neigung, insbesondere bei sehr gebräuchlichen dreiachsigen Sattelanhängern, sich dem Einlenken entgegen zu stemmen. Durch die gezielt asymmetrische Verteilung der Rekuperations-Bremskräfte wird das fahrdynamische Verhalten verbessert.When driving on curves with smaller radii, the clutch of the wheel on the outside of the curve is preferably disengaged during recuperation, while the clutch of the wheel on the inside of the curve remains closed. The recuperation via the wheel on the inside of the curve generates a braking force that causes a yaw moment around the vehicle's vertical axis. This yaw moment supports the turning in of the trailer and reduces the tendency, especially in the case of very common three-axle semitrailers, to counteract the turning. The specifically asymmetrical distribution of the recuperation braking forces improves driving dynamics.
Beim Rangieren des Fahrzeuges und den damit einhergehenden sehr geringen Geschwindigkeiten werden vorzugsweise beide Kupplungen geöffnet. Hiermit wird das Rangieren erleichtert.When maneuvering the vehicle and the very low speeds associated with it, both clutches are preferably opened. This makes maneuvering easier.
In Betriebszuständen, in denen das Rekuperationssystem nicht aktiviert ist, ist es zweckmäßig, lediglich eine der beiden Kupplungen zu schließen, vorzugsweise die Kupplung des Rades mit der geringeren Drehzahl. Somit wird der Generator stets auf Drehzahl gehalten. Zugleich können bei inaktivem Rekuperationssystem das linke und rechte Rad drehmomentfrei und unabhängig voneinander abrollen.In operating states in which the recuperation system is not activated, it is useful to close only one of the two clutches, preferably the clutch of the wheel with the lower speed. This means that the generator is always kept at speed. At the same time, when the recuperation system is inactive, the left and right wheels can roll without torque and independently of one another.
Ob sich ein Fahrzeug in einer Kurvenbahn befindet und wie groß der Kurvenradius ist, wird von einer herkömmlichen Fahrdynamikregelung erfasst und ausgewertet. Die Fahrdynamikregelung greift auf die Drehzahlinformationen der Räder zu und ermöglicht eine Aussage über die Raddrehzahl, den Kurvenradius und den Schlupf am Rad. Dazu werden unter anderem die Informationen der Drehzahlsensoren ausgewertet. Die Fahrdynamikregelung steuert abhängig von dieser Auswertung das Öffnen und Schließen der Kupplungen.A conventional vehicle dynamics control system records and evaluates whether a vehicle is in a curved path and how large the curve radius is. The vehicle dynamics control accesses the speed information from the wheels and enables a statement to be made about the wheel speed, the curve radius and the slip on the wheel. For this purpose, the information from the speed sensors is evaluated. The vehicle dynamics control controls the opening and closing of the clutches depending on this evaluation.
Um die Effizienz und den Wirkungsgrad des Generators zu steigern, ist vorzugsweise ein Übersetzungsgetriebe zwischen den Rädern und dem Generator integriert.In order to increase the efficiency and the efficiency of the generator, a transmission gear is preferably integrated between the wheels and the generator.
BezugszeichenlisteList of reference symbols
- 11
- Generatorgenerator
- 1111
- GeneratorwelleGenerator shaft
- 22
- Kupplungcoupling
- 33
- Antriebswelledrive shaft
- 44th
- Radwheel
- 4141
- ÜbersetzungsgetriebeTransmission gear
- 55
- elektrischer Energiespeicherelectrical energy storage
- 66
- LeistungselektronikPower electronics
- 77th
- FahrdynamikregelungDriving dynamics control
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent literature cited
- WO 002018099878 A1 [0002]WO 002018099878 A1 [0002]
- DE 102016003356 A1 [0002]DE 102016003356 A1 [0002]
- DE 102012108518 A1 [0003]DE 102012108518 A1 [0003]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019003664.6A DE102019003664A1 (en) | 2019-05-24 | 2019-05-24 | Recuperation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019003664.6A DE102019003664A1 (en) | 2019-05-24 | 2019-05-24 | Recuperation system |
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Publication Number | Publication Date |
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DE102019003664A1 true DE102019003664A1 (en) | 2020-11-26 |
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ID=73052894
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DE102019003664.6A Withdrawn DE102019003664A1 (en) | 2019-05-24 | 2019-05-24 | Recuperation system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115071435A (en) * | 2022-03-31 | 2022-09-20 | 浙江中车电车有限公司 | Energy storage control system and control method for pure electric vehicle |
-
2019
- 2019-05-24 DE DE102019003664.6A patent/DE102019003664A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115071435A (en) * | 2022-03-31 | 2022-09-20 | 浙江中车电车有限公司 | Energy storage control system and control method for pure electric vehicle |
CN115071435B (en) * | 2022-03-31 | 2024-04-09 | 浙江中车电车有限公司 | Energy storage control system and control method for pure electric vehicle |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |