WO2009083747A1 - Système électrique à batteries doubles pour véhicules à moteur - Google Patents

Système électrique à batteries doubles pour véhicules à moteur Download PDF

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Publication number
WO2009083747A1
WO2009083747A1 PCT/IB2007/004464 IB2007004464W WO2009083747A1 WO 2009083747 A1 WO2009083747 A1 WO 2009083747A1 IB 2007004464 W IB2007004464 W IB 2007004464W WO 2009083747 A1 WO2009083747 A1 WO 2009083747A1
Authority
WO
WIPO (PCT)
Prior art keywords
starting
battery set
service
battery
voltage
Prior art date
Application number
PCT/IB2007/004464
Other languages
English (en)
Inventor
Gaëlle DE LUSSY
Michel Mottier
Lasse Ryden
Hans Westerlind
Original Assignee
Renault Trucks
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 Renault Trucks filed Critical Renault Trucks
Priority to PCT/IB2007/004464 priority Critical patent/WO2009083747A1/fr
Publication of WO2009083747A1 publication Critical patent/WO2009083747A1/fr

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
    • H02J7/1423—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 with multiple batteries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • F02N11/0866—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery comprising several power sources, e.g. battery and capacitor or two batteries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N2011/0881—Components of the circuit not provided for by previous groups
    • F02N2011/0888—DC/DC converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
    • F02N2200/061—Battery state of charge [SOC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
    • F02N2200/064—Battery temperature
    • 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 present invention relates generally to engine vehicle electrical systems and, more particularly, to dual battery electrical systems for supplying electrical energy, on the one hand, to general electrical device systems of the vehicle and, on the other hand, to the starting system of the vehicle.
  • engine vehicles should be considered as comprising any kind of vehicle propelled by an internal combustion engine such as automotive vehicles, for example trucks or motorcars.
  • automotive vehicles comprise a single electric circuit providing electrical energy to an electric starter associated with the engine as well as to other electric .consumers such as an electronic engine management unit, an engine cooling ventilator, headlights and many other devices.
  • This single electric circuit derives its energy from a battery set and/or an electric generator driven by the engine.
  • the single electric circuit derives its energy from the single battery set which is generally designed for deep cyclic uses and total energy capacity even if the starting operation needs a high level of energy in a very short period of time.
  • the major drawback of such a system is that the single battery set is not always able to provide enough power to start the engine because of the use of batteries optimized for deep cycling uses and for total energy capacity for two different types of operations that would rather require two different types of design of batteries. But the deficiency of the battery set does not always result of the type of battery used. For example, for a truck during an halting period with the driver living on board, the single battery set is discharged by providing electricity to the various comfort accessories used by the driver. So, when starting is needed, the single battery set is not able to provide enough power for starting the engine.
  • the charging/separating device comprises a step-up converter in order to allow a stepping-up of the voltage of the service electric circuit for charging the starting battery set which is of a higher voltage than the service battery set.
  • This kind of electrical system manages to raise the level of reliability of the starting system but does not allow a very accurate control of the charging sequence of both the starting battery and the service battery.
  • the invention is aimed at providing an electrical system for an engine vehicle which allows a very fine tuning of the charging voltage of each of the battery sets in order to guaranty the reliability of the starting system and to extend the service life of the batteries. Therefore one object of the invention is an electrical system for an engine vehicle, the electrical system comprising:
  • a starting circuit being adapted to provide electricity only to an electrical starting system of the engine and comprising a starting battery set which comprises at least one starting battery,
  • - starting battery sensing means adapted to provide, on the one hand, a temperature of the starting battery set and, on the other hand, a state of charge and/or a voltage of the starting battery set;
  • a service circuit being adapted to provide electricity to other electrical systems or devices of the vehicle and comprising:
  • an electric generator being adapted to be driven by the engine and having an adjustable output voltage
  • - service battery set sensing means adapted to provide, on the one hand, a temperature of the service battery set and, on the other hand, a state of charge and/or a voltage of the service battery set;
  • a charging/separating module which interconnects the service circuit and the starting circuit, and which comprises at least a step-up and step-down converter being adapted to step-up or step-down the voltage of the electrical energy provided by the service circuit to the starting circuit,
  • the charging voltage of the service battery set corresponds to the output voltage of the electric generator minus electrical losses and is a function of the output voltage of the electric generator.
  • the charging voltage of the starting set corresponds to the output voltage of the charging/separating module minus electrical losses and is a function of the output voltage of the charging/separating module. Therefore it is possible to adjust the charging voltage of the service battery set or the output voltage of the electric generator, the former being preferred for reducing the charging duration. It is also possible to adjust the charging voltage of the starting set or the output voltage of the electric generator charging/separating module, the former being preferred for reducing the charging duration.
  • the charging voltage of each battery sets corresponds to the voltage of the battery set as it can be provided by the corresponding sensing means.
  • SOC state of charge
  • the use of the charging/separating module comprising a step-up /step- down converter in combination with the electric generator having an adjustable output voltage and the electronic control unit allows setting, independently from each other, the charging voltage of the service battery set and the charging voltage of the starting battery and allows therefore setting each charging voltage to its optimal value with respect to the temperature and the state of charge of each battery set. More particularly taking into consideration the temperature allows to prevent, during charging, any degassing or boiling sequence which shortens the lifespan of the batteries.
  • each starting battery is a battery with a low internal resistance optimized for efficient low duration high current output also called power battery
  • each service battery is a battery optimized for deep cyclic uses and for total energy capacity also called energy battery
  • each battery set is perfectly adapted to its specific use.
  • the invention may be implemented with battery sets of the same type, either power or energy type, but also with battery sets of a dual type being a compromise between an energy battery set and a power battery set.
  • the electronic control unit is adapted to set the charging voltage of the starting battery set as being in inverse proportion to the starting battery set temperature, the charging voltage further being between a maximum value and a minimum value.
  • the maximum value of the charging voltage is in the range of 128% to 138% of the nominal voltage of the starting battery set and the minimum value of the charging voltage is set in the range of 105% to 1 15% of the nominal voltage of the starting battery set.
  • Vc Vc ma ⁇ - A ( ⁇ sta rt -10) (V s t art /100)
  • Vc max is the maximum value of the charging voltage in Volt
  • - A is a coefficient in the range of 0,43 to 1 , 10;
  • - ⁇ start is the temperature of the starting battery set in Celsius degrees; - Vstart is the nominal voltage of the starting battery set
  • the output voltage of the electric generator when the state of charge of the service battery set is below a threshold value, the output voltage of the electric generator is set in inverse proportion to the starting battery set temperature, the output voltage further being between a maximum value and a minimum value.
  • the output voltage of the electric generator when the state of charge of the service battery set is equal or above the threshold value, the output voltage of the electric generator is set to a floating value.
  • the output voltage of the electric generator corresponds to the charging voltage of the service battery set, the reduction of the output voltage according to the temperature warrants the efficiency of the charging whereas the setting of the output voltage to a floating value avoids the drying out of each service battery while maintaining the output voltage of the generator to an acceptable value for the others electrical consumers of the service circuit.
  • the setting of the output voltage of the electric generator is made using the following values: - the maximum value of the output voltage of the electric generator is in the range of 115% to 123% of the nominal voltage of the service battery set;
  • the minimum value of the output voltage of the electric generator is in the range of 110% to 119% of the nominal voltage of the service battery set
  • the floating value is in the range of 103% and 109% of the nominal voltage of the service battery set.
  • the threshold value of state of charge for the service or starting battery sets is set according to the state of health of the corresponding battery set.
  • the state of health (SOH) is a measurement that reflects the general condition of a battery and its ability to deliver the specified performance compared with a fresh battery. It takes into account such factors as, for example, charge acceptance, internal resistance, voltage and self-discharge.
  • the SOH will be given by the sensing means of each battery set and can be, for example, a three state information corresponding to: new battery, mid life battery and end of life battery.
  • the threshold value is, for example, chosen at approximately 95% of charge for a new battery and at approximately 80% of charge for a battery at its end of life. For a battery at its mid-life, the threshold value would be, for example, approximately 85% of charge. Determining the threshold value according to the state of health of the batteries allows to prevent more efficiently any damage on the batteries and to extend the life time of the batteries.
  • the service battery set and the starting battery set have the same nominal voltage.
  • the use of battery sets of the same nominal voltage renders even more appropriate the implementation of the step-up and step down converter as if apparently there is no need of stepping up or down the output voltage of the generator for charging the starting battery, the service battery set and the service battery set never have, at a particular moment, the same state of charge or same temperature, and therefore require a different charging voltage. This is particularly true when the service and starting batteries are of different design.
  • the nominal voltage of the service battery set and the starting battery set is 24V.
  • the service battery set and starting battery set each comprises at least an external connector adapted to allow an external connection between the service circuit and the starting circuit for shunting the charging/separating module. This allows, in case of breakdown of the starting battery set, to rely on the service battery set for starting the engine.
  • Another object of the invention is an engine vehicle comprising:
  • the engine vehicle further comprises an electrical system according to the invention which starting circuit is only connected to the starting system of the engine vehicle and which service circuit provides energy to the other consuming devices or systems, the electric generator of the electrical system being driven by the engine of the vehicle.
  • the figure 1 is an schematic block diagram of an electrical system for an engine vehicle according to the invention.
  • the figure 2 is schematic electrical diagram of a charging/separating module of the electrical system illustrated fig.1 , the charging/separating module implementing a step-up/step-down converter driven by an electronic control unit (ECU) embedded in the charging/separating module.
  • ECU electronice control unit
  • An electrical system of an engine vehicle as shown on figure 1 and according to the invention comprises, on the one hand, a starting circuit 1 and, on the other hand, a service circuit 2.
  • the starting circuit 1 is designed to provide energy to only consumers essential for starting the internal combustion engine 3 of the vehicle.
  • the starting circuit comprises a starting battery set 4 composed of at least one and, according to the shown example, two starting batteries 5, 6 each having a nominal voltage of 12V and being connected in series in order to provide a nominal output voltage of 24V.
  • both starting batteries have a low internal resistance and are optimized for efficient low duration high-current output.
  • the starting battery set 4 provides energy to an electric starting motor or starter 7 which is adapted to drive the engine 3 during a starting sequence.
  • the engine 3 is, on the shown embodiment, a Diesel engine
  • the starting battery set 4 may provide energy also to an electric intake air heating device or heating plug 8.
  • the starting battery set 4 does not provide energy to any other electrical consumer which is not necessary for starting the engine 3.
  • the service circuit 2 is therefore designed to provide energy to such electrical consumers or accessories.
  • the service circuit 2 comprises an electric generator 10 which is driven by the engine 3.
  • the electric generator is connected to a service battery set 11 which comprises at least one, and according to the shown example, two service batteries 12, 13 connected in series.
  • Each service battery 12, 13 has a nominal voltage of 12V thus the service battery set 11 has a nominal voltage of 24V.
  • the service batteries 12, 13 are designed for providing electrical energy for various electrical devices or accessories of the vehicle and therefore are optimized for deep cyclic uses and for total energy capacity.
  • the service circuit 2 further comprises an electronic engine management device 14 and several electrical consumers such as, for example and not limitatively, lights 15 and windshield wiper 16.
  • the generator 10 is permanently connected to the service circuit, it provides energy to the electrical consumers when the engine is running as well as it charges the service battery set 11.
  • the electrical system according to the invention further comprises a charging/separating module 20 set between the service circuit 2 and the starting circuit 1.
  • the charging/separating module 20 is adapted on the one hand to derive, when necessary, electricity from the service circuit 2 for charging the starting battery set 4.
  • the charging/separating module 20 is associated with an Electronic Control Unit (ECU) 21 which controls the output voltage of the generator 10 as well as the functioning of the charging/separating module 20.
  • ECU Electronic Control Unit
  • This control is done according to information given by starting battery set sensing means 22 and service battery set sensing means 23, each associated with their respective battery set.
  • the battery set sensing means 22, 23 provides a temperature and a state of charge (SOC) of the corresponding battery set 4, 14.
  • SOC state of charge
  • the corresponding battery set sensing means 22, 23 will for example sense the output or input voltage and intensity of the corresponding battery set.
  • each battery set sensing means will also be able to provide the output or input voltage of the corresponding battery set (i.e. the voltage at the electric terminals of the battery).
  • each battery set sensing means will also be able to provide a state of health SOH of each battery set.
  • the charging/separating module 20 comprises, as shown at the figure 2, a step-up and step-down converter 25.
  • the ECU 21 and the converter 25 are embedded in the same casing forming as a whole the charging/separating module 20.
  • the converter 25 is a forward dc-dc converter implementing, on both sides of the circuit, switching MOSFETs 30 to 35 driven by ECU 21 .
  • the ECU 21 sets each of the switching MOSFETs 30 to 35 in an open mode therefore separating the starting circuit 1 from the service circuit 2. Furthermore, when the power demand of the electrical consumers connected to the service circuit 2 is higher than the power available from the generator 10 and/or the service battery set 1 1 , which might induce a leakage of energy from the starting circuit 1 to the service circuit 2, the ECU 21 will also set as necessary, all or some of the switching MOSFETs 30 to 35 in an open state in order to prevent such leakage of energy.
  • the ECU 21 isolates or separates the starting circuit from the service circuit.
  • the ECU 21 controls the voltage output Vg of the generator 10 with respect to the temperature and the state of charge of the service battery set 1 1 .
  • the setting by the ECU 21 of the voltage output of the generator Vg as a function of both the temperature and the state of charge of the service battery set 1 1 is done according to the following rules:
  • SOC state of charge
  • Vg is set in the range of 1 15% to 1 18,75% of the nominal voltage of the service battery set.
  • Vg is further set according to the following relation :
  • Vg Vg max - (0,125)( ⁇ se rv -10)(V ser v/100) where: - Vgmax is the maximum value of the charging voltage in Volt ie 1 18,75% of the nominal voltage of the service battery set which is 28,5 V for the present embodiment;
  • - ⁇ serv is the temperature of the starting battery set in Celsius degrees; - V S erv is the nominal voltage of the service battery set.
  • Vg When the SOC is above to the threshold value, Vg will be set at a floating value in the range of 103% to 109% of the nominal value of the service battery set and in the present embodiment in the range of 25,6V and 26,4V.
  • the ECU 21 controls the converter 25 in order to set the charging voltage Vc of the starting battery set 4 as a function of both the temperature and the state of charge of the starting battery 4 according to the following rules:
  • Vc is set in the range of 1 10% to 133,33% of the nominal voltage of the starting battery set. Vc is further set according to the following relation:
  • Vc Vc max - (0,777)( ⁇ si art -10)(V st art/100) where:
  • - ⁇ start is the temperature of the starting battery set in Celcius degrees
  • - Vcmax is the maximum value of the charging voltage in Volt ie 133,33% of the nominal voltage of the service battery set which is 32V for the present embodiment
  • Vstart is the nominal voltage of the starting battery set.
  • the charging/separating module 20, controlled by the ECU 21 is able to set voltages Vg and Vc independently from each other and therefore to set either the charging voltage of the starting battery set 4 or the service battery set 1 1 to an optimum value to perform the best charge of both battery sets and, once the charging is done, maintain their state of charge at that optimum value.
  • the ECU will control the output voltage of the charging/separating module 20 so that, during the charging sequence at least, the voltage at the electric terminals of the starting battery set 4 follows the above rules given for Vc.
  • the ECU will control the output voltage of the electric generator 10 so that the voltage at the electric terminals of the service battery set 11 follows the above rules given for Vg.
  • the service battery set 11 and the starting battery set 4 can each comprise at least one external connector 40 which can be used to set an external circuit shunting the module 20 and connecting the service circuit to the starting circuit.
  • the step-up and step-down converter is of the forward converter type implementing a regular transformer but it should be understood that the step-up and step-down converter can be of any other type of dc-dc converter such as, for example, a buck-boost converter or a cuk converter.
  • the starting circuit provides energy to the heating plug or any device for heating the air intake or the engine before starting but such heating device can be connected to service circuit.
  • the starting circuit provides power only to electrical systems necessary for starting but not necessarily to all the electrical systems needed for starting. In a preferred embodiment of the invention all the electrical system needed for starting are connected to the starting circuit.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un système électrique pour véhicule à moteur, ce système électrique comprenant: un circuit de démarrage (1) pourvu d'un ensemble de batteries de démarrage (4), un circuit de service (2) pourvu d'un ensemble de batteries de service et d'un générateur électrique (10), un module de charge/séparation (20) assurant l'interconnexion du circuit de service (2) et du circuit de démarrage (1), ainsi qu'une unité de commande électronique assurant la commande du module de charge/séparation (20) et du générateur électrique (10) de façon à régler la tension de charge de l'ensemble de batteries de démarrage et la tension de sortie du générateur en fonction de la température et de l'état de charge de l'ensemble de batteries de démarrage (4) et en fonction de la température et de l'état de charge de l'ensemble de batteries de service (11).
PCT/IB2007/004464 2007-12-28 2007-12-28 Système électrique à batteries doubles pour véhicules à moteur WO2009083747A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2007/004464 WO2009083747A1 (fr) 2007-12-28 2007-12-28 Système électrique à batteries doubles pour véhicules à moteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2007/004464 WO2009083747A1 (fr) 2007-12-28 2007-12-28 Système électrique à batteries doubles pour véhicules à moteur

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Publication Number Publication Date
WO2009083747A1 true WO2009083747A1 (fr) 2009-07-09

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PCT/IB2007/004464 WO2009083747A1 (fr) 2007-12-28 2007-12-28 Système électrique à batteries doubles pour véhicules à moteur

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013089612A1 (fr) 2011-12-14 2013-06-20 Scania Cv Ab Procédé et système de charge de batterie d'un véhicule
EP3321136A4 (fr) * 2015-07-06 2018-11-21 Limited Liability Company "SMARTER" Système d'alimentation électrique d'une voiture de transport
CN109131165A (zh) * 2018-09-28 2019-01-04 北京首汽智行科技有限公司 一种车辆供电控制装置
US11223225B2 (en) * 2019-09-09 2022-01-11 Deere & Company Intelligent starting and charging system and method

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Publication number Priority date Publication date Assignee Title
US5397991A (en) * 1988-07-13 1995-03-14 Electronic Development Inc. Multi-battery charging system for reduced fuel consumption and emissions in automotive vehicles
US5525891A (en) * 1991-11-27 1996-06-11 Robert Bosch Gmbh Power-supply-apparatus in a vehicle
FR2729901A1 (fr) * 1995-01-30 1996-08-02 Valeo Equip Electr Moteur Unite de gestion d'energie pour reseau electrique de vehicule automobile incorporant plusieurs unites de stockage d'energie, et reseau electrique incorporant une telle unite de gestion d'energie
EP0753925A2 (fr) * 1995-07-13 1997-01-15 Société Anonyme dite: REGIE NATIONALE DES USINES RENAULT Dispositif d'alimentation électrique d'un véhicule automobile et procédés de commande d'un tel dispositif
WO1999022434A1 (fr) * 1997-10-27 1999-05-06 Johnson Controls Technology Company Procede et circuit de commande de charge d'un systeme electrique a deux batteries
US6304054B1 (en) * 1998-09-02 2001-10-16 Scania Cv Aktiebolag Electrical system for motor vehicles
US20040212351A1 (en) * 2001-06-29 2004-10-28 Markus Kneifel Devices and/or methods for determing the availability of electric energy, in particularly in vehicle electric systems comprising several energy accumulators

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5397991A (en) * 1988-07-13 1995-03-14 Electronic Development Inc. Multi-battery charging system for reduced fuel consumption and emissions in automotive vehicles
US5525891A (en) * 1991-11-27 1996-06-11 Robert Bosch Gmbh Power-supply-apparatus in a vehicle
FR2729901A1 (fr) * 1995-01-30 1996-08-02 Valeo Equip Electr Moteur Unite de gestion d'energie pour reseau electrique de vehicule automobile incorporant plusieurs unites de stockage d'energie, et reseau electrique incorporant une telle unite de gestion d'energie
EP0753925A2 (fr) * 1995-07-13 1997-01-15 Société Anonyme dite: REGIE NATIONALE DES USINES RENAULT Dispositif d'alimentation électrique d'un véhicule automobile et procédés de commande d'un tel dispositif
WO1999022434A1 (fr) * 1997-10-27 1999-05-06 Johnson Controls Technology Company Procede et circuit de commande de charge d'un systeme electrique a deux batteries
US6304054B1 (en) * 1998-09-02 2001-10-16 Scania Cv Aktiebolag Electrical system for motor vehicles
US20040212351A1 (en) * 2001-06-29 2004-10-28 Markus Kneifel Devices and/or methods for determing the availability of electric energy, in particularly in vehicle electric systems comprising several energy accumulators

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013089612A1 (fr) 2011-12-14 2013-06-20 Scania Cv Ab Procédé et système de charge de batterie d'un véhicule
CN103988388A (zh) * 2011-12-14 2014-08-13 斯堪尼亚商用车有限公司 用于车辆的电池充电的方法和系统
EP2792047A4 (fr) * 2011-12-14 2015-07-22 Scania Cv Ab Procédé et système de charge de batterie d'un véhicule
EP3321136A4 (fr) * 2015-07-06 2018-11-21 Limited Liability Company "SMARTER" Système d'alimentation électrique d'une voiture de transport
CN109131165A (zh) * 2018-09-28 2019-01-04 北京首汽智行科技有限公司 一种车辆供电控制装置
US11223225B2 (en) * 2019-09-09 2022-01-11 Deere & Company Intelligent starting and charging system and method

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