DE102015117464A1 - Motor vehicle and method for operating such - Google Patents
Motor vehicle and method for operating such Download PDFInfo
- Publication number
- DE102015117464A1 DE102015117464A1 DE102015117464.2A DE102015117464A DE102015117464A1 DE 102015117464 A1 DE102015117464 A1 DE 102015117464A1 DE 102015117464 A DE102015117464 A DE 102015117464A DE 102015117464 A1 DE102015117464 A1 DE 102015117464A1
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- Germany
- Prior art keywords
- electric machine
- electric
- motor vehicle
- rear axle
- machines
- 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.)
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Classifications
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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
- 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
- B60L15/2045—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 for optimising the use of energy
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
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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
- 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
- B60L2260/00—Operating Modes
- B60L2260/20—Drive modes; Transition between modes
- B60L2260/28—Four wheel or all wheel drive
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Die Erfindung stellt ein elektrisch betriebenes Kraftfahrzeug (10) mit den folgenden Merkmalen bereit: eine Vorderachse (11) und eine Hinterachse (12), eine mechanisch mit der Vorderachse (11) verbundene erste Elektromaschine (13) zum Antreiben der Vorderachse (11), eine mit der Hinterachse (12) mechanisch verbundene zweite Elektromaschine (14) zum Antreiben der Hinterachse (12), einen mit der ersten Elektromaschine und der zweiten Elektromaschine elektrisch verbundenen Energiespeicher (15) zum Versorgen der Elektromaschinen (13, 14) mit einem begrenzten Strom und
eine echtzeitfähige, mit den Elektromaschinen (13, 14) und der Energiespeicher (15) elektronisch verbundene zentrale Recheneinheit (16) zum dynamischen Verteilen eines mittels des Stromes ausgeübten Drehmomentes zwischen den Elektromaschinen (13, 14).
Die Erfindung stellt ferner ein entsprechendes Verfahren zum Betreiben eines Kraftfahrzeuges (10), ein entsprechendes Computerprogramm sowie ein entsprechendes Speichermedium bereit. The invention provides an electrically powered motor vehicle (10) having the following features: a front axle (11) and a rear axle (12), a first electric machine (13) mechanically connected to the front axle (11) for driving the front axle (11), a second electric machine (14) mechanically connected to the rear axle (12) for driving the rear axle (12), an energy store (15) electrically connected to the first electric machine and the second electric machine for supplying the electric machines (13, 14) with a limited current and
a real-time capable, with the electric machines (13, 14) and the energy storage (15) electronically connected central processing unit (16) for dynamically distributing a force exerted by the current torque between the electric machines (13, 14).
The invention further provides a corresponding method for operating a motor vehicle (10), a corresponding computer program and a corresponding storage medium.
Description
Die vorliegende Erfindung betrifft ein elektrisch betriebenes Kraftfahrzeug. Die vorliegende Erfindung betrifft darüber hinaus ein entsprechendes Verfahren zum Betreiben eines Kraftfahrzeuges, ein entsprechendes Computerprogramm sowie ein entsprechendes Speichermedium. The present invention relates to an electrically operated motor vehicle. The present invention also relates to a corresponding method for operating a motor vehicle, a corresponding computer program and a corresponding storage medium.
Stand der Technik State of the art
Bekannt sind Kraftfahrzeuge mit Elektro-(E-) oder Hybrid-Antrieb. Soll ein solches Kraftfahrzeug elektrisch allradfähig sein, müssen die durch den elektrischen Antrieb erzeugten Momente auf Vorder- und Hinterachse (VA, HA) verteilt werden. Im Kraftfahrzeug können hierzu mindestens zwei Elektromaschinen (E-Maschinen) vorhanden sein, wobei ein Energiespeicher die Elektromaschinen mit einem begrenzten Strom versorgt. Dabei mag mindestens eine Elektromaschine die Vorderachse und mindestens eine Elektromaschine die Hinterachse antreiben. Motor vehicles with electric (E) or hybrid drive are known. If such a motor vehicle is to be electrically four-wheel drive, the torques generated by the electric drive must be distributed to the front and rear axles (VA, HA). For this purpose, at least two electric machines (electric machines) may be present in the motor vehicle, wherein an energy store supplies the electric machines with a limited current. At least one electric machine may drive the front axle and at least one electric machine drive the rear axle.
In der
In der
In der
In der
In der
In der
In der
Offenbarung der Erfindung Disclosure of the invention
Die Erfindung stellt ein elektrisch betriebenes Kraftfahrzeug, ein entsprechendes Verfahren zum Betreiben eines Kraftfahrzeuges, ein entsprechendes Computerprogramm sowie ein entsprechendes Speichermedium gemäß den unabhängigen Ansprüchen bereit. The invention provides an electrically operated motor vehicle, a corresponding method for operating a motor vehicle, a corresponding computer program and a corresponding storage medium according to the independent claims.
Dieser Ansatz fußt auf dem Grundgedanken, dass keine feste Verteilung des von dem Energiespeicher gelieferten Stromes auf die Elektromaschinen, sondern eine dynamische Anpassung der Verteilung der Momente und somit des Stromes zwischen den Elektromaschinen je nach Fahrzustand erfolgt. This approach is based on the idea that there is no fixed distribution of the current supplied by the energy store to the electric machines, but a dynamic adjustment of the distribution of the moments and thus the current between the electric machines depending on the driving condition.
Ein Vorzug dieser Lösung liegt in der ermöglichten Reichweitenoptimierung, da jeweils die für den Moment je nach Fahrerwunsch effizienteste Momentenverteilung eingestellt werden kann. An advantage of this solution lies in the possible range optimization, since in each case the most efficient moment distribution can be set for the moment depending on the driver's request.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Patentansprüchen angegeben. So können ein oder mehrere Fahrdynamikregelsysteme, insbesondere eine Traktionskontrolle, bedarfsweise in das Verteilen des Momentes eingreifen. Auf diese Weise wird eine Eingriffsmöglichkeit seitens Fahrdynamiksystemen, wie dem Traktionsmanagement und dem Rekuperationsmanagement, sichergestellt. Further advantageous embodiments of the invention are specified in the dependent claims. Thus, one or more driving dynamics control systems, in particular a traction control, intervene, as needed, in the distribution of the moment. In this way an intervention possibility on the part of driving dynamics systems, such as traction management and recuperation management, ensured.
Ferner mögen Kenngrößen der Elektromaschinen wie Wirkungsgrad, Strom und Spannung ermittelt und bei der Berechnung der Stromverteilung berücksichtigt werden. Die E-Maschinen werden auf diesem Weg im Verhältnis ihres Potentials ausgewogen belastet. Furthermore, characteristics of the electric machines such as efficiency, current and voltage can be determined and taken into account in the calculation of the current distribution. The E-machines are weighed in this way balanced in proportion to their potential.
Wünschenswert ist eine maximal performante Lösung unter Ausnutzung der gesamten Batterieleistung. Die bestmögliche Ausnutzung der zur Verfügung stehenden elektrischen Leistung führt in dieser Ausführungsform zu einer Performanceoptimierung. It is desirable to have a maximum performance solution that exploits the entire battery power. The best possible utilization of the available electrical power leads in this embodiment to a performance optimization.
Schließlich verteilt die Recheneinheit vorzugsweise das Moment um, falls eine der Elektromaschinen eine spezifische Leistungsgrenze erreicht, also gleichsam an ihrem Limit ist. So erfolgt eine Änderung des ursprünglichen Verteilungsfaktors bei Bedarf. Die ruckfreie Beschleunigung auch bei Umverteilung erhöht die Fahrbarkeit beträchtlich. Finally, the arithmetic unit preferably redistributes the moment if one of the electric machines reaches a specific power limit, ie is at its limit. This changes the original distribution factor as needed. The smooth acceleration even when redistributed increases the drivability considerably.
Kurze Beschreibung der Zeichnung Short description of the drawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben. An embodiment of the invention is illustrated in the drawing and will be described in more detail below.
Die einzige Figur zeigt schematisch ein erfindungsgemäßes Kraftfahrzeug. The single figure shows schematically a motor vehicle according to the invention.
Ausführungsformen der Erfindung Embodiments of the invention
Die Figur illustriert den grundlegenden Aufbau eines elektrisch betriebenen Kraftfahrzeuges
Im Betrieb des Kraftfahrzeuges
Die Gesamtleistung des Energiespeichers
In einer bevorzugten Ausführungsform ist der beschriebene Ablauf auch bei einer Topologie mit mehrgängigen Getrieben umsetzbar. In einer weiteren besonderen Ausführungsform kann auch an jedem der vier Räder eine Elektromaschine
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE 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 has been 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 PatentliteraturCited patent literature
- CN 201805389 U [0003] CN 201805389 U [0003]
- JP 2007325372 A [0004] JP 2007325372 A [0004]
- US 20010025219 A1 [0005] US 20010025219 A1 [0005]
- US 20020013194 A1 [0006] US 20020013194 A1 [0006]
- US 20050052080 A1 [0007] US 20050052080 A1 [0007]
- US 20050029035 A1 [0008] US 20050029035 A1 [0008]
- EP 0775607 A1 [0009] EP 0775607 A1 [0009]
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102015117464.2A DE102015117464A1 (en) | 2015-10-14 | 2015-10-14 | Motor vehicle and method for operating such |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102015117464.2A DE102015117464A1 (en) | 2015-10-14 | 2015-10-14 | Motor vehicle and method for operating such |
Publications (1)
Publication Number | Publication Date |
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DE102015117464A1 true DE102015117464A1 (en) | 2017-04-20 |
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DE102015117464.2A Pending DE102015117464A1 (en) | 2015-10-14 | 2015-10-14 | Motor vehicle and method for operating such |
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DE (1) | DE102015117464A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112389268A (en) * | 2019-08-15 | 2021-02-23 | 比亚迪股份有限公司 | Electric automobile and integrated controller and integrated control system thereof |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0775607A1 (en) | 1995-05-19 | 1997-05-28 | Toyota Jidosha Kabushiki Kaisha | Transmission system, four-wheel drive vehicle using the same, power transmitting method, and four-wheel driving method |
US20010025219A1 (en) | 2000-03-23 | 2001-09-27 | Toyota Jidosha Kabushiki Kaisha | Driving force distribution control apparatus and method of motor vehicle |
US20020013194A1 (en) | 2000-07-21 | 2002-01-31 | Honda Giken Kogyo Kabushiki Kaisha | Driving force control system for front-and-rear wheel drive vehicles |
US20050029035A1 (en) | 2003-07-08 | 2005-02-10 | Toyoda Koki Kabushiki Kaisha | Power distribution control apparatus of four-wheel drive vehicle |
US20050052080A1 (en) | 2002-07-31 | 2005-03-10 | Maslov Boris A. | Adaptive electric car |
JP2007325372A (en) | 2006-05-31 | 2007-12-13 | Nissan Motor Co Ltd | Electric vehicle controller |
CN201805389U (en) | 2010-03-01 | 2011-04-20 | 邹明翰 | Electromagnetic multi-wheel driven differential-speed current distributor |
DE112011101648T5 (en) * | 2010-05-14 | 2013-03-21 | Beijing, ZHI KE Investment and Management Co., Ltd. | Electric vehicle drive system |
-
2015
- 2015-10-14 DE DE102015117464.2A patent/DE102015117464A1/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0775607A1 (en) | 1995-05-19 | 1997-05-28 | Toyota Jidosha Kabushiki Kaisha | Transmission system, four-wheel drive vehicle using the same, power transmitting method, and four-wheel driving method |
US20010025219A1 (en) | 2000-03-23 | 2001-09-27 | Toyota Jidosha Kabushiki Kaisha | Driving force distribution control apparatus and method of motor vehicle |
US20020013194A1 (en) | 2000-07-21 | 2002-01-31 | Honda Giken Kogyo Kabushiki Kaisha | Driving force control system for front-and-rear wheel drive vehicles |
US20050052080A1 (en) | 2002-07-31 | 2005-03-10 | Maslov Boris A. | Adaptive electric car |
US20050029035A1 (en) | 2003-07-08 | 2005-02-10 | Toyoda Koki Kabushiki Kaisha | Power distribution control apparatus of four-wheel drive vehicle |
JP2007325372A (en) | 2006-05-31 | 2007-12-13 | Nissan Motor Co Ltd | Electric vehicle controller |
CN201805389U (en) | 2010-03-01 | 2011-04-20 | 邹明翰 | Electromagnetic multi-wheel driven differential-speed current distributor |
DE112011101648T5 (en) * | 2010-05-14 | 2013-03-21 | Beijing, ZHI KE Investment and Management Co., Ltd. | Electric vehicle drive system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112389268A (en) * | 2019-08-15 | 2021-02-23 | 比亚迪股份有限公司 | Electric automobile and integrated controller and integrated control system thereof |
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