WO2004070910A1 - Energieversorgungsschaltung für ein kraftfahrzeug-bordnetz - Google Patents
Energieversorgungsschaltung für ein kraftfahrzeug-bordnetz Download PDFInfo
- Publication number
- WO2004070910A1 WO2004070910A1 PCT/EP2003/014219 EP0314219W WO2004070910A1 WO 2004070910 A1 WO2004070910 A1 WO 2004070910A1 EP 0314219 W EP0314219 W EP 0314219W WO 2004070910 A1 WO2004070910 A1 WO 2004070910A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- energy
- energy store
- electrical system
- state
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the invention relates to a power supply circuit for a motor vehicle electrical system according to the preamble of claim 1.
- an on-board network for motor vehicles which comprises at least one battery, a generator and electrical consumers.
- the battery and the generator are connected in parallel to each other.
- a dynamic energy store is connected in parallel between the battery and the generator, and a controllable switch is arranged between the battery and the dynamic energy store, which switch can be actuated as a function of the state of charge of the battery and / or the operating temperature. If one is exceeded Operating temperature threshold or when the battery is just below full charge, the controllable switch is opened to prevent the battery from being destroyed.
- DE 198 46 319 Cl discloses a power supply circuit for a motor vehicle electrical system with two voltage supply branches at different voltage levels.
- the first voltage supply branch is fed from the second voltage supply branch via an electrical direct voltage converter and the two voltage supply branch is fed from a generator.
- At least one voltage supply branch is buffered by an associated energy store.
- a multiple converter with three voltage levels is formed, one input / output of which is connected to the second voltage supply branch, the other input / output of which is connected to the first voltage supply branch and the third input / output of which is connected to the energy store assigned to the first voltage supply branch. If necessary, the multiple converter enables variable distribution of the power flows between different inputs / outputs.
- an on-board network for vehicles in which a battery and a high-performance energy store, such as a supercapacitor, alternately and others. be charged by braking energy.
- the stored energy is among other things used to accelerate the vehicle.
- the battery can be recharged with excess energy from the high-performance energy store.
- the ISAD system comprises a two-voltage electrical system for 12V and 42V and is structured as follows.
- An ISAD machine 30 is connected via a frequency converter 31 to a 42V electrical system which is used, for example, for an electronic A / C compressor, electronic steering, electronic valve control, electronic catalytic converter heating, etc.
- the frequency converter 31 is connected via a DC / DC converter 32 to a 12 V electrical system which is used for light, radio, ECU, etc.
- the frequency converter 31 as well as the DC / DC converter 32 are monitored by a control unit 33.
- a 12V battery 34 which is connected to the 12V electrical system and a 42V starter battery 35 with the 42V electrical system.
- the two batteries 34, 35 are each connected to a battery status monitoring system 36.
- An ultra-cap is used, for example, as an energy store with low internal resistance.
- the energy storage is integrated into the vehicle electrical system via a bidirectional DC / DC converter.
- this task is performed by an energy supply circuit for a motor vehicle electrical system with the features of claim 1 solved.
- Advantageous developments of the invention are specified in the subclaims.
- the losses are low due to the direct coupling of the energy storage device to the starter / generator.
- voltage-controlled charging of a discharged energy store is possible via the starter / generator, which means that a higher degree of efficiency can be achieved than with the DC / DC converter.
- a DC / DC converter is now sufficient for the integration of the energy store into the vehicle electrical system, which is designed for the average power of the energy store.
- FIG. 1 is a block diagram of an energy supply circuit according to the invention for a motor vehicle electrical system
- FIG. 2 shows a tabular representation of various operating states and associated charging states of an energy store and the correspondingly used energy sources for the vehicle electrical system
- Fig. 3 shows the structure of a conventional ISAD system for a 12V / 42V electrical system.
- FIG. 1 shows an energy supply circuit according to the invention for a motor vehicle electrical system using the example of a motor vehicle with a 12V electrical system.
- the power supply circuit according to the invention can also be used in on-board electrical systems with a different voltage level or multi-voltage on-board electrical systems. With multi-voltage Vehicle electrical systems can then be modified according to the invention in one or more of the respective voltage branches.
- M denotes a motor and 1 a starter generator, which can either be a belt-driven starter generator or an integrated starter generator which is connected to the motor M.
- the starter-generator 1 is connected to the power supply circuit EV according to the invention via power electronics LE.
- This power supply circuit has two different voltage supply branches.
- the first voltage supply branch has a switch S1, via which the starter generator 1 with the downstream power electronics LE can be connected directly to a battery B, in the exemplary embodiment described a 12V battery with 70Ah, and the vehicle electrical system, here a 12V vehicle electrical system.
- the second voltage supply branch has a switch S2, via which the starter generator 1 with downstream power electronics LE connects directly to an energy store 3, for example an Ultracap for 14V / 550F and via a DC / DC converter 2 to the vehicle electrical system, here the 12V electrical system can be connected.
- the energy supply circuit E has a monitoring device 4, which monitors the state of charge of the battery B and of the energy store 3.
- the monitoring result of the monitoring device 4 is fed to a control device 5 which, in response to this monitoring result, ie the charging states of the battery B and the energy store 3 and an operating state of the engine detected by a device not shown, ie one of those shown in FIG. 2 below States 0 to 4, ie first start, acceleration (boost), constant speed, braking (recuperation) or stop / start, a switchover of switches S1 and S2 and the DC / DC converter in such a way that always the lowest possible energy consumption and the highest possible energy storage is achieved.
- Controllable semiconductor switches are preferably used as switches S1 and S2.
- FIG. 2 various operating states of the vehicle with starter / generator 1 and different charging states of the energy store 3 are plotted against one another in tabular form, and the corresponding energy supply states of the energy store 3 and the battery B are indicated.
- state 0 first start
- state 1 acceleration (boost)
- state 3 recuperation (braking process)
- state 4 stop / start.
- This is independent of the state of charge SOC of battery B.
- switch S1 is closed and switch S2 is open.
- switch S1 is open and switch S2 is closed.
- the on-board electrical system is supplied with energy from the energy store 3 when the battery S ⁇ S% is charged and the battery B is charged.
- switch S1 is closed and switch S2 is open.
- the state of charge SOC of the battery B ⁇ 70% provides the energy store 3 with the energy for acceleration and the battery B with the energy for the electrical system.
- Switch S1 is open and switch S2 is closed.
- the battery B At a voltage level of the energy store 3 corresponding to that of the DC / DC converter 2, i.e. for example 9V, the battery B is supplied with energy and the battery B is charged when the state of charge SOC of the battery B is ⁇ 70%.
- the switch S1 is closed and the switch S2 is open. If, on the other hand, the state of charge SOC of battery B is> 70%, only the on-board electrical system is supplied with energy by battery B.
- the switches S1 and S2 are open.
- the battery system B At a voltage level of the energy store 3 corresponding to the desired operating point, ie, for example 12V, the battery system B is supplied with energy by the energy store 3 and the battery B is charged with a state of charge SOC of the battery B ⁇ 70%.
- the switch S1 is closed and the switch S2 is open. If, on the other hand, the state of charge SOC of battery B is> 70%, battery B supplies the vehicle electrical system with energy.
- the switches S1 and S2 are open.
- the on-board electrical system is supplied with energy from the energy store 3 and the battery B is charged when the state of charge SOC of the battery B is ⁇ 70%. In this state, switch S1 is closed and switch S2 is open. If, on the other hand, the state of charge SOC of the battery B is> 70%, the electrical system is supplied with energy from the energy store 3. The switches S1 and S2 are open.
- switch S1 is open and switch S2 is closed, while in the alternative it is exactly the opposite.
- the voltage of the energy store 3 depends on its capacity and the power electronics (for example 30V), the integrated starter / generator 1 and the DC / DC converter 2. At voltages of more than 15V, a further recuperation mode is possible for all states. Namely, a combined recuperation can take place, ie if the generator voltage U Gen > 15V, then the recuperation takes place in the energy store 3, otherwise it takes place in the battery B.
- the energy supply takes place only in the case of the first start from the battery B, while it takes place at later starts or stops via the energy store 3, which is, for example, an ultracap.
- the recuperation takes place primarily via the energy store 3.
- the battery B can be charged to 95-100% and a constant recuperation energy that is independent of the battery state can be stored.
- the on-board electrical system is supplied via DC / DC converter 2 during recuperation. After recuperation, the on-board electrical system is supplied via battery B if drive support is not possible or necessary.
- the charge state threshold is set to 85% instead of 70%.
- drive support by the integrated starter / generator with the energy from the energy store 3 can take place.
- the on-board electrical system is fed via the DC / DC converter 2 and / or the battery B. In this way, it is now possible to adjust the DC / DC converter 2 only to the average power of the energy store 3 interpreted.
- a starting process i.e. for example, a quick start with U >> 12V is basically done via the energy storage 3 without DC / DC coupling.
- the battery size can be reduced by the on-board electrical system according to the invention. This has weight, packaging and cost advantages.
- the life of the battery B is increased because its load is reduced.
- the battery B can be charged as required with the DC / DC converter 2, which further increases the on-board electrical system reliability and starting security.
- the present invention discloses an energy supply circuit for a motor vehicle electrical system with a starter generator, power electronics, at least one battery, at least one dynamic energy store and a DC / DC converter.
- the energy supply circuit has a first connection branch provided with the DC / DC converter and connected to a connection of the dynamic energy store and a second connection branch connected to a connection of the battery. Both connection branches can be separated from the starter generator via controllable switches.
- a control device controls the switches in the first and second connection branches and the DC / DC converter in response to a state of charge of the battery and the energy store and an operating state of the motor vehicle in such a way that existing recuperation energy is stored in the energy store, a drive support by energy from the energy store takes place as soon as it is charged, and until then, from the battery, energy from the energy storage is used for a quick start, the battery is charged according to its state of charge and, after recuperation, the vehicle electrical system is fed by the battery.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Control Of Charge By Means Of Generators (AREA)
- Secondary Cells (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03815693A EP1590870A1 (de) | 2003-02-07 | 2003-12-13 | Energieversorgungsschaltung für ein kraftfahrzeug-bordnetz |
JP2004567758A JP2006515242A (ja) | 2003-02-07 | 2003-12-13 | 車両電装システム用電源回路 |
US10/544,789 US20060137918A1 (en) | 2003-02-07 | 2003-12-13 | Power supply circuit for a motor vehicle electric system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10305058.2 | 2003-02-07 | ||
DE10305058A DE10305058B3 (de) | 2003-02-07 | 2003-02-07 | Energieversorgungsschaltung für ein Kraftfahrzeug-Bordnetz |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004070910A1 true WO2004070910A1 (de) | 2004-08-19 |
Family
ID=31896387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/014219 WO2004070910A1 (de) | 2003-02-07 | 2003-12-13 | Energieversorgungsschaltung für ein kraftfahrzeug-bordnetz |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060137918A1 (de) |
EP (1) | EP1590870A1 (de) |
JP (1) | JP2006515242A (de) |
DE (1) | DE10305058B3 (de) |
WO (1) | WO2004070910A1 (de) |
Cited By (2)
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JP2006191795A (ja) * | 2004-12-28 | 2006-07-20 | Volkswagen Ag <Vw> | ハイブリッドエネルギ蓄積器の駆動方法およびハイブリッドエネルギ蓄積器の駆動装置 |
FR2912268A1 (fr) * | 2007-02-01 | 2008-08-08 | Peugeot Citroen Automobiles Sa | Procede et systeme de surveillance de l'etat de charge et de conditionnement d'un organe de stockage d'energie electrique d'un vehicule |
Families Citing this family (28)
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DE102004023619A1 (de) * | 2004-05-10 | 2005-12-01 | Volkswagen Ag | Elektrisches Energiesystem in einem Hybridfahrzeug |
DE102005018620B4 (de) * | 2005-04-21 | 2009-10-22 | Rheinmetall Landsysteme Gmbh | Energieversorgungsschaltung |
FR2890609B1 (fr) * | 2005-09-12 | 2007-10-19 | Valeo Equip Electr Moteur | Systeme d'entrainement electrique d'equipements associes a un moteur thermique |
DE102006004267B4 (de) * | 2006-01-31 | 2009-09-24 | Audi Ag | Bordnetz für ein Fahrzeug |
US8134343B2 (en) * | 2007-04-27 | 2012-03-13 | Flextronics International Kft | Energy storage device for starting engines of motor vehicles and other transportation systems |
US9263907B2 (en) | 2008-01-03 | 2016-02-16 | F.D. Richardson Enterprises, Inc. | Method and apparatus for providing supplemental power to an engine |
US8493021B2 (en) * | 2008-01-03 | 2013-07-23 | F. D. Richardson Entereprises, Inc. | Method and apparatus for providing supplemental power to an engine |
US20090174362A1 (en) * | 2008-01-03 | 2009-07-09 | F.D. Richardson Enterprises, Inc. Doing Business As Richardson Jumpstarters | Method and apparatus for providing supplemental power to an engine |
FR2926169B1 (fr) * | 2008-01-09 | 2012-05-04 | Peugeot Citroen Automobiles Sa | Circuit electrique comportant un moyen de stockage electrique apte a fournir une tension variable |
DE102008012640A1 (de) * | 2008-03-05 | 2009-09-10 | Robert Bosch Gmbh | Vorrichtung zur Kopplung mehrerer Teilnetze |
FR2933356B1 (fr) * | 2008-07-04 | 2010-12-17 | Peugeot Citroen Automobiles Sa | Dispositif de stockage d'energie pour vehicules automobiles de type hybride ou electrique et procede de gestion d'energie electrique associe |
DE102009043878A1 (de) | 2009-01-08 | 2010-07-15 | Reinhard Kalfhaus | Verfahren und Schaltungsanordnung zur unterstützenden Energieversorgung eines Bordnetzes |
CZ2009286A3 (cs) * | 2009-05-05 | 2010-06-30 | Šula@Martin | Zapojení napájecí soustavy vozidla a zpusob jejího rízení |
DE102010010409A1 (de) | 2010-03-05 | 2011-09-08 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Betreiben einer Energiespeicheranordnung und Energiespeicheranordnung |
KR100973142B1 (ko) * | 2010-04-01 | 2010-07-29 | 이대교 | 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치 및 방법 |
DE102010054191A1 (de) * | 2010-12-11 | 2012-06-21 | Volkswagen Ag | Kraftfahrzeugbordnetz und Verfahren zum Betreiben eiens Kraftfahrzeugbordnetzes |
DE102011011800B4 (de) | 2011-02-19 | 2015-09-17 | Volkswagen Aktiengesellschaft | Verfahren zur Spannungsversorgung für ein Fahrzeug sowie entsprechende Vorrichtung und Fahrzeug |
AT512244B1 (de) * | 2011-11-08 | 2015-01-15 | Avl List Gmbh | Verfahren zur verwaltung elektrischer energie in einem fahrzeug |
DE102012000624A1 (de) * | 2012-01-14 | 2013-07-18 | Volkswagen Aktiengesellschaft | Kraftfahrzeugbordnetz und Verfahren zum Betreiben eines Kraftfahrzeugbordnetzes |
DE102012204976A1 (de) * | 2012-03-28 | 2013-10-02 | Bayerische Motoren Werke Aktiengesellschaft | Fahrzeug mit einer Bordnetzarchitektur und Verfahren zum Betreiben derselben |
DE102012018730B4 (de) | 2012-09-21 | 2023-10-05 | Man Truck & Bus Se | Kraftfahrzeug-Bordnetz mit einem zusätzlichen Energiespeicher und zugehöriges Betriebsverfahren |
US8829855B2 (en) * | 2012-09-26 | 2014-09-09 | Kohler Co. | Power generation system that optimizes the power provided to start a generator |
DE102012222208B4 (de) * | 2012-12-04 | 2021-03-18 | Vitesco Technologies GmbH | Verfahren zum gesteuerten Verbinden mehrerer Bordnetzzweige eines Fahrzeugs, Steuereinheit zur Ausführung des Verfahrens sowie Bordnetz |
US9689366B2 (en) | 2013-06-13 | 2017-06-27 | Unison Industries, Llc | Method to decouple battery from high level cranking currents of diesel engines |
CN105984347A (zh) * | 2015-02-03 | 2016-10-05 | 上海海拉电子有限公司 | 一种用于具有再生制动的车辆的启停控制系统 |
KR102530940B1 (ko) * | 2018-04-23 | 2023-05-11 | 현대자동차주식회사 | 차량용 에너지저장장치 시스템 |
JP7124619B2 (ja) * | 2018-10-04 | 2022-08-24 | トヨタ自動車株式会社 | エンジンの始動装置およびエンジンの始動方法 |
CN109980762A (zh) * | 2019-04-03 | 2019-07-05 | 苏州阿福机器人有限公司 | 电动车辆的升压式刹车能量回收电路和回收方法 |
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DE19628877A1 (de) | 1996-07-17 | 1998-01-22 | Bayerische Motoren Werke Ag | Verfahren zum Betrieb eines Fahrzeugs mit einer ersten und einer zweiten Antriebs-Energiequelle |
DE19846319C1 (de) | 1998-10-08 | 2000-02-17 | Daimler Chrysler Ag | Energieversorgungsschaltung für ein Kraftfahrzeugbordnetz mit zwei Spannungsversorgungszweigen |
DE19917294A1 (de) | 1999-04-16 | 2000-10-19 | Volkswagen Ag | Bordnetz für Kraftfahrzeuge |
DE10063751A1 (de) | 2000-12-21 | 2002-07-18 | Bosch Gmbh Robert | Verfahren zum Betrieb eines Verbrennungsmotors |
WO2002066293A1 (de) * | 2001-02-16 | 2002-08-29 | Siemens Aktiengesellschaft | Kraftfahrzeug-bordnetz |
Family Cites Families (1)
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JP3896258B2 (ja) * | 2001-04-25 | 2007-03-22 | 株式会社日立製作所 | 自動車電源装置 |
-
2003
- 2003-02-07 DE DE10305058A patent/DE10305058B3/de not_active Expired - Fee Related
- 2003-12-13 EP EP03815693A patent/EP1590870A1/de not_active Withdrawn
- 2003-12-13 JP JP2004567758A patent/JP2006515242A/ja not_active Withdrawn
- 2003-12-13 US US10/544,789 patent/US20060137918A1/en not_active Abandoned
- 2003-12-13 WO PCT/EP2003/014219 patent/WO2004070910A1/de not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE19628877A1 (de) | 1996-07-17 | 1998-01-22 | Bayerische Motoren Werke Ag | Verfahren zum Betrieb eines Fahrzeugs mit einer ersten und einer zweiten Antriebs-Energiequelle |
DE19846319C1 (de) | 1998-10-08 | 2000-02-17 | Daimler Chrysler Ag | Energieversorgungsschaltung für ein Kraftfahrzeugbordnetz mit zwei Spannungsversorgungszweigen |
DE19917294A1 (de) | 1999-04-16 | 2000-10-19 | Volkswagen Ag | Bordnetz für Kraftfahrzeuge |
DE10063751A1 (de) | 2000-12-21 | 2002-07-18 | Bosch Gmbh Robert | Verfahren zum Betrieb eines Verbrennungsmotors |
WO2002066293A1 (de) * | 2001-02-16 | 2002-08-29 | Siemens Aktiengesellschaft | Kraftfahrzeug-bordnetz |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006191795A (ja) * | 2004-12-28 | 2006-07-20 | Volkswagen Ag <Vw> | ハイブリッドエネルギ蓄積器の駆動方法およびハイブリッドエネルギ蓄積器の駆動装置 |
FR2912268A1 (fr) * | 2007-02-01 | 2008-08-08 | Peugeot Citroen Automobiles Sa | Procede et systeme de surveillance de l'etat de charge et de conditionnement d'un organe de stockage d'energie electrique d'un vehicule |
WO2008107616A2 (fr) * | 2007-02-01 | 2008-09-12 | Peugeot Citroën Automobiles SA | Procede et systeme de surveillance de l'etat de charge et de conditionnement d'un organe de stockage d'energie electrique d'un vehicule |
WO2008107616A3 (fr) * | 2007-02-01 | 2008-10-30 | Peugeot Citroen Automobiles Sa | Procede et systeme de surveillance de l'etat de charge et de conditionnement d'un organe de stockage d'energie electrique d'un vehicule |
Also Published As
Publication number | Publication date |
---|---|
DE10305058B3 (de) | 2004-03-25 |
JP2006515242A (ja) | 2006-05-25 |
EP1590870A1 (de) | 2005-11-02 |
US20060137918A1 (en) | 2006-06-29 |
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