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WO2008031669A1 - Dispositif pour la décharge rapide de condensateurs - Google Patents

Dispositif pour la décharge rapide de condensateurs Download PDF

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Publication number
WO2008031669A1
WO2008031669A1 PCT/EP2007/057742 EP2007057742W WO2008031669A1 WO 2008031669 A1 WO2008031669 A1 WO 2008031669A1 EP 2007057742 W EP2007057742 W EP 2007057742W WO 2008031669 A1 WO2008031669 A1 WO 2008031669A1
Authority
WO
WIPO (PCT)
Prior art keywords
capacitors
rapid discharge
changeover
switching means
discharge
Prior art date
Application number
PCT/EP2007/057742
Other languages
German (de)
English (en)
Inventor
Arndt Wagner
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2008031669A1 publication Critical patent/WO2008031669A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/322—Means for rapidly discharging a capacitor of the converter for protecting electrical components or for preventing electrical shock

Definitions

  • the invention relates to a device for the rapid discharge of capacitors with the features of claim 1, in particular of DC link capacitors or DC link capacitances in a motor vehicle electrical system
  • Such a device for the rapid discharge of capacitors in a two-voltage electrical system is described for example in DE-OS 10 2004 057 693.
  • the discharge takes place by means of a main contactor which cooperates with a DC-DC converter, and allows the discharge of the capacitors via the DC-DC converter in the low-voltage electrical system.
  • the invention is a very fast discharge of the DC link capacitor or the
  • the advantage of the invention is to provide a device or circuit that provides a cost-effective way to quickly discharge the DC link capacitor or the DC link capacity in the traction board network.
  • the voltage in the traction vehicle electrical system can be advantageously lowered after switching off within a very short time of, for example, 5 seconds below 65 volts. This is not possible with conventional circuit arrangements since the discharge time until the traction network reaches a normally harmless voltage range is several minutes.
  • the above-mentioned advantage is achieved by using a switching device with two changeover contacts, instead of a main contactor provided in conventional devices, which is designed such that it enables a discharge of the intermediate circuit capacitor with appropriate control.
  • An advantageous application possibility is in the traction network of a hybrid vehicle.
  • the charging methods for capacitors are advantageously carried out under certain conditions, thereby ensuring that the battery is disconnected.
  • FIG. 1 shows a circuit for the typical structure of a conventional electrical system in a hybrid vehicle.
  • Figure 2 shows an embodiment of the invention and in Figure 3a or 3b, the current curves for the device of the embodiment according to
  • FIG. 1 is shown for two typical conditions.
  • the circuit shown in Figure 1 shows the typical structure of a vehicle electrical system for a hybrid system, as it is currently Hautsetrt in vehicles, with an electric machine 1, a pulse-controlled inverter 5, a high-voltage or Tratechnischsnetzbatterie 4, the actual traction network 8, which is also referred to as an intermediate circuit and, by way of example, another traction network consumer 6.
  • the further traction network consumer 6 is only symbolic of several consumers in this network. Included in the pulse inverter 5 is at least one intermediate circuit capacitor 3 with a large capacity. Typical values of the capacity are in the range of 1
  • the DC link capacitor should symbolically also include other, possibly existing DC link capacitances.
  • the circuit comprises a plurality of semiconductor circuits with control, which are summarized in simplified form as block 2.
  • FIG. 2 shows an exemplary embodiment of the invention which offers a possibility of discharging the intermediate circuit 8 or the intermediate circuit capacitor 3 as well as any additional DC link capacitances which may be present quickly and safely.
  • switching means 10 instead of the two make contacts 9 of the main contactor 7 of Figure 1 switching means 10 with two changeover contacts 10a and 10b connected in accordance with the circuit shown.
  • the changeover contacts 10a and 1 Ob are connected via a connection 12 to each other.
  • the changeover of the changeover contacts for example, by the appropriately modified contactor 7 or via a corresponding control ..
  • circuit components 11 may be used, in particular current-limiting elements such as resistors, inductors or a combination of resistors and / or inductors.
  • Circuit components 11 may be semiconductor devices.
  • the circuit components which enable a rapid discharge of the intermediate circuit capacitor 3 or the existing DC link capacitances, that is to say in particular the switching means 10 or the changeover contacts 10a and 10b and / or the circuit components 11, can also be present in the already existing one, for example
  • Main contactor 7 are integrated.
  • the changeover contacts can also be designed as electronic switches and in particular comprise insulated gate bipolar transistors IGBT.
  • circuit shown in Figure 2 can be a device for fast
  • the electrical network preferably a high-voltage network or a traction network, including the capacities therein in a motor vehicle, can be quickly discharged or short-circuited.
  • a mechanical lock that prevents the incorrect activation of the
  • the traction network is for example part of a power supply in a hybrid vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un dispositif pour la décharge rapide de condensateurs (3), notamment de condensateurs de circuit intermédiaire ou des capacités de circuit intermédiaire dans un réseau électrique, à l'aide duquel la décharge rapide peut être réalisée par le biais de deux inverseurs (10a) et (10b) dans des conditions pouvant être prédéfinies et avec la batterie (4) déconnectée. Les inverseurs sont ici configurés de telle sorte que deux de leurs contacts de commutation sont couplés ensemble par le biais d'une liaison (12).
PCT/EP2007/057742 2006-09-14 2007-07-27 Dispositif pour la décharge rapide de condensateurs WO2008031669A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006043950A DE102006043950A1 (de) 2006-09-14 2006-09-14 Vorrichtung zur schnellen Entladung von Kondensatoren
DE102006043950.3 2006-09-14

Publications (1)

Publication Number Publication Date
WO2008031669A1 true WO2008031669A1 (fr) 2008-03-20

Family

ID=38671010

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/057742 WO2008031669A1 (fr) 2006-09-14 2007-07-27 Dispositif pour la décharge rapide de condensateurs

Country Status (2)

Country Link
DE (1) DE102006043950A1 (fr)
WO (1) WO2008031669A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102653245A (zh) * 2011-03-04 2012-09-05 本田技研工业株式会社 电动车
ITTO20110768A1 (it) * 2011-08-12 2013-02-13 Magneti Marelli Spa Dispositivo e metodo di scarica per la scarica attiva di un condensatore in un impianto elettrico di potenza di un veicolo con trazione elettrica
ITTO20110767A1 (it) * 2011-08-12 2013-02-13 Magneti Marelli Spa Dispositivo e metodo di scarica per scaricare in modo attivo un condensatore in un impianto elettrico di potenza di un veicolo con trazione elettrica
WO2013050281A3 (fr) * 2011-10-05 2013-08-22 Robert Bosch Gmbh Unité de commande pour véhicule automobile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008061585B4 (de) * 2008-12-11 2019-02-21 Conti Temic Microelectronic Gmbh Fahrzeug mit Versorgungseinrichtung eines Elektromotors und Verfahren zur Stromversorgung des Elektromotors
DE102010050347B3 (de) * 2010-11-05 2012-05-03 Sew-Eurodrive Gmbh & Co. Kg Vorrichtung und Verfahren zur Herstellung eines sicheren Betriebszustands eines Hochspannungszwischenkreises eines Elektrofahrzeugs

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531647A1 (de) * 1974-07-17 1976-02-05 Nippon Kogaku Kk Booster-schaltung
US20040100740A1 (en) * 2002-11-27 2004-05-27 Yasuhiro Iwashita Switched-mode power supply
DE10304557A1 (de) * 2003-02-05 2004-08-19 Bayerische Motoren Werke Ag Kondensatorbatterie und Verfahren zu deren Ansteuerung
DE102004057693A1 (de) * 2004-11-30 2006-06-01 Robert Bosch Gmbh Vorrichtung zur schnellen Entladung eines Kondensators
EP1672763A1 (fr) * 2004-12-07 2006-06-21 Luxon Energy Devices Corporation Dispositif et méthode d'allimentation utilisant commutation de polartié mutuelle
DE102005055075A1 (de) * 2005-11-18 2007-05-24 Bayerische Motoren Werke Ag Kraftfahrzeug mit einer Kondensatoreinrichtung zur Speicherung elektrischer Energie

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531647A1 (de) * 1974-07-17 1976-02-05 Nippon Kogaku Kk Booster-schaltung
US20040100740A1 (en) * 2002-11-27 2004-05-27 Yasuhiro Iwashita Switched-mode power supply
DE10304557A1 (de) * 2003-02-05 2004-08-19 Bayerische Motoren Werke Ag Kondensatorbatterie und Verfahren zu deren Ansteuerung
DE102004057693A1 (de) * 2004-11-30 2006-06-01 Robert Bosch Gmbh Vorrichtung zur schnellen Entladung eines Kondensators
EP1672763A1 (fr) * 2004-12-07 2006-06-21 Luxon Energy Devices Corporation Dispositif et méthode d'allimentation utilisant commutation de polartié mutuelle
DE102005055075A1 (de) * 2005-11-18 2007-05-24 Bayerische Motoren Werke Ag Kraftfahrzeug mit einer Kondensatoreinrichtung zur Speicherung elektrischer Energie

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102653245A (zh) * 2011-03-04 2012-09-05 本田技研工业株式会社 电动车
TWI492870B (zh) * 2011-03-04 2015-07-21 Honda Motor Co Ltd 電動車輛
US9051024B2 (en) 2011-03-04 2015-06-09 Honda Motor Co., Ltd. Electric vehicle with motor drive section
US9041361B2 (en) 2011-08-12 2015-05-26 MAGNETI MARELLI S.p.A. Discharge device and discharge method for the active discharge of a capacitor for use in the electric-power system of an electric-drive vehicle
CN102957186A (zh) * 2011-08-12 2013-03-06 马涅蒂-马瑞利公司 主动给使用在电力驱动车辆的电源系统中的电容器放电的放电设备和放电方法
CN102983601A (zh) * 2011-08-12 2013-03-20 马涅蒂-马瑞利公司 主动给电动车辆电源系统中的电容器放电的设备和方法
EP2556981A3 (fr) * 2011-08-12 2014-01-08 Magneti Marelli S.p.A. Dispositif de décharge et procédé de décharge pour décharger activement un condensateur utilisé dans le système d'alimentation électrique d'un véhicule à entraînement électrique
ITTO20110767A1 (it) * 2011-08-12 2013-02-13 Magneti Marelli Spa Dispositivo e metodo di scarica per scaricare in modo attivo un condensatore in un impianto elettrico di potenza di un veicolo con trazione elettrica
EP2556982A1 (fr) * 2011-08-12 2013-02-13 Magneti Marelli S.p.A. Dispositif de décharge et procédé de décharge pour la décharge active d'un condensateur destiné à être utilisé dans le système d'alimentation électrique d'un véhicule à entraînement électrique
ITTO20110768A1 (it) * 2011-08-12 2013-02-13 Magneti Marelli Spa Dispositivo e metodo di scarica per la scarica attiva di un condensatore in un impianto elettrico di potenza di un veicolo con trazione elettrica
CN102983601B (zh) * 2011-08-12 2016-06-29 马涅蒂-马瑞利公司 主动给电动车辆电源系统中的电容器放电的设备和方法
WO2013050281A3 (fr) * 2011-10-05 2013-08-22 Robert Bosch Gmbh Unité de commande pour véhicule automobile
CN103946051A (zh) * 2011-10-05 2014-07-23 罗伯特·博世有限公司 一种用于机动车的控制单元
US9401598B2 (en) 2011-10-05 2016-07-26 Robert Bosch Gmbh Control unit for a motor vehicle

Also Published As

Publication number Publication date
DE102006043950A1 (de) 2008-03-27

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