EP2529467A1 - Method for optimising hybrid vehicle battery recharging - Google Patents

Method for optimising hybrid vehicle battery recharging

Info

Publication number
EP2529467A1
EP2529467A1 EP10810786A EP10810786A EP2529467A1 EP 2529467 A1 EP2529467 A1 EP 2529467A1 EP 10810786 A EP10810786 A EP 10810786A EP 10810786 A EP10810786 A EP 10810786A EP 2529467 A1 EP2529467 A1 EP 2529467A1
Authority
EP
European Patent Office
Prior art keywords
battery
vehicle
order
machine
idle speed
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Withdrawn
Application number
EP10810786A
Other languages
German (de)
French (fr)
Inventor
Ridouane Habbani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2529467A1 publication Critical patent/EP2529467A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18054—Propelling the vehicle related to particular drive situations at stand still, e.g. engine in idling state
    • 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
    • H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
    • H02J7/1476—Regulation of the charging current or voltage otherwise than by variation of field by mechanical action on the generator
    • 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
    • B60L2240/48—Drive Train control parameters related to transmissions
    • B60L2240/486—Operating parameters
    • 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
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/525—Temperature of converter or components thereof
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/02—Clutches
    • B60W2510/0208—Clutch engagement state, e.g. engaged or disengaged
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • B60W2510/0642—Idle condition
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/10—Change speed gearings
    • B60W2510/1005—Transmission ratio engaged
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/10—Change speed gearings
    • B60W2510/1005—Transmission ratio engaged
    • B60W2510/101—Transmission neutral state
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0644—Engine speed
    • B60W2710/065—Idle condition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/91—Battery charging
    • 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
    • Y02T10/62—Hybrid vehicles
    • 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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the invention relates to a method for optimizing the charging of the battery of a hybrid vehicle.
  • the invention finds a particularly advantageous application in the field of hybrid vehicles having a first train towed with a heat engine and a second train towed electrically.
  • the invention aims in particular to improve the availability of energy on the train towed electrically, particularly when the vehicle operates in 4x4 mode.
  • Hybrid vehicles comprising a heat engine ensuring the traction of the front axle.
  • a clutch ensures the connection between the engine on the one hand and a gearbox connected to the nose gear on the other hand.
  • This engine has an idle speed, of the order of 750 revolutions / min, when the clutch is open and / or the gearbox is in neutral.
  • This engine is mechanically associated with a front electric alternator / starter type machine.
  • This machine makes it possible in particular to recharge the batteries of the vehicle when it is driven by the engine (generator mode).
  • This machine also starts the engine when running in engine mode. In certain life situations, this machine can even participate in the traction of the vehicle.
  • These vehicles also comprise an electric machine ensuring the traction of the rear axle via a gearbox and a coupling device for example dog-type.
  • a gearbox for example dog-type.
  • front-wheel drive and rear-wheel drive are mechanically independent of each other.
  • the front electric machine and the rear electric machine are connected to a high voltage battery via an electrical network.
  • This high voltage battery is in connection with a low voltage onboard network via a DC / DC converter.
  • a brake control system is generally installed on the wheels of the vehicle, this system making it possible to prevent the wheels from locking and if necessary to re-establish a trajectory of the vehicle.
  • the torque desired by the driver is distributed on the front and rear axle of the vehicle.
  • the available torque on the rear axle depends directly on the level of charge of the battery. Indeed, the higher the level of charge, the higher the maximum available torque is important because the discharge power of the battery is high. Conversely, the lower the level of charge, the lower the available torque because the power of discharge of the battery is low.
  • the invention is intended to provide a way to effectively recharge the high voltage battery and optimize the available torque in 4x4 mode.
  • the idle speed is increased to increase the power available to the machine before and therefore the recharging power of the battery when the state of charge of the battery is less than a configurable threshold of between 10 and 50% of the maximum state of charge.
  • the idle speed returns to the default idle speed when the state of charge of the battery becomes greater than the threshold parameterizable.
  • the invention therefore relates to a method for optimizing the charging of the battery of a hybrid vehicle comprising:
  • the first machine being capable of being driven by the heat engine when the first machine is operating in generator mode to recharge the high-voltage battery
  • the heat engine has an idle speed by default when the state of charge of the high voltage battery is below a parameterizable threshold or
  • the increased idle speed is of the order of 10 to 40% higher than the default idle speed.
  • the default idle speed is of the order of 750 revolutions / min.
  • the increased idling speed is of the order of 950 revolutions / min.
  • the parameterizable threshold is of the order of 10 to 50% of the maximum state of charge of the high voltage battery.
  • Figure 1 a schematic representation of a hybrid vehicle implementing the method according to the invention
  • Figure 2 a graphical representation of the power of the machine before (in Watts) according to the speed of the engine (in revolutions / min). [021] The identical elements retain the same references from one figure to another.
  • Figure 1 shows a hybrid vehicle 1 implementing the method according to the invention comprising a front axle 2 and a rear axle 3 mechanically independent of one another.
  • a conventional powertrain 5 ensures the traction of the front axle 2 of the vehicle. More specifically, this group 5 comprises a thermal engine 7 in connection with a manual gearbox 8 controlled (BVMP) via a conventional clutch 10 for example a clutch dry or wet trim. This gearbox 8 is connected to the nose gear 2 through a lower deck (not shown). Alternatively, the powertrain 5 group could include an automatic gearbox 8.
  • BVMP manual gearbox 8 controlled
  • an electric machine 1 1 is mechanically associated with the thermal motor 7.
  • the machine 1 1 When the machine 1 1 is driven by the motor 7, it operates in generator mode and supplies power to the high voltage battery 19 to recharge it.
  • the machine 1 1 can also operate in engine mode to start the engine 7 thermal. In certain life situations, the machine 1 1 also ensures the traction of the front axle 2 by providing torque (boost mode).
  • a starter 13 is used to start the engine 7 in case of very low temperatures in the case where the machine before 1 1 is not able to perform this function. If necessary, a system 14 of air conditioning is mechanically connected to the engine 7 and the machine before 1 1.
  • an electric machine 15 provides traction of the rear axle 3 of the vehicle.
  • the machine 15 is connected to the rear axle 3 via a clutch 16 and a set 17 of gearing.
  • This clutch 16 takes for example the form of a clutch, while the set 17 of gear ratio is single report, even if it could alternatively have several reports.
  • the two machines 1 1 and 15 are interconnected via an electrical network.
  • the machines 1 1 and 15 are connected to a high voltage battery 19 via an inverter 21 capable of chopping the DC voltage of the battery 19 to power the machines 1 1 and 15 electrical when they operate in motor mode.
  • the inverter 21 is capable of transforming the AC voltage produced by the machines 1 1 and 15 DC voltage applied to the terminals of the battery 19.
  • the battery 19 is connected to a DC / DC converter which converts the high voltage DC voltage of the battery 19 into a voltage acceptable by the choke 13 and a low voltage battery 22 connected to the vehicle edge network 24.
  • the vehicle 1 is equipped with a conventional braking control system 25 type ESP or ABS to manage the braking force during emergency braking, to ensure the control of the trajectory of the vehicle and / or to avoid wheel lock.
  • a conventional braking control system 25 type ESP or ABS to manage the braking force during emergency braking, to ensure the control of the trajectory of the vehicle and / or to avoid wheel lock.
  • a computer 28 controls the various components of the vehicle to perform in particular the distribution of torque Cg requested by the driver between the front axle 2 (torque Ccns_av) and the rear axle 3 (torque Ccns_ar).
  • the requested torque Cg is calculated by the module 29 called the driver will interpretation module (IVC), in particular according to the depression of the accelerator pedal 31 and the vehicle speed V measured by a sensor 33 associated with a wheel.
  • IVC driver will interpretation module
  • the clutch 10 and the gearbox 8 return their respective states E E and E B to the computer 28.
  • the battery 19 also returns its state of charge to the computer 28.
  • a wheel 35 allows the driver to choose the 4x4 operating mode of the vehicle 1 in which the torque Cg will be distributed substantially uniformly between the front axle 2 and the rear axle 3 of the vehicle.
  • the computer 28 detects that the clutch 10 is in the open state and / or that the gearbox 8 is in neutral, and that the state of charge SOC of the battery 19 is below the parameterizable threshold, the operating point of the thermal motor 7 is moved, so that the motor 7 has an increased idle speed W2 higher than the default speed W1.
  • the invention thus makes it possible to increase the speed of the machine 1 1 operating in generator mode to recharge the battery 19, and thus to improve the availability of energy on the train 2 electrically towed.
  • the increased idle speed W2 is of the order of 10 to 40% higher than the default idle speed W1.
  • the speed W1 for example has a value of 950 revolutions / minute, so that the power Pdisp available to recharge the battery 19 goes from 8kW (for W1) to 9kW (for W2), which corresponds to an increase in the available power Pdisp of 12%.
  • the parameterizable threshold is of the order of 10 to 50% of the maximum state of charge of the high-voltage battery 19.
  • the invention can also be implemented when the vehicle does not operate in 4x4 mode to optimize the recharge of the battery 19.
  • the invention can be implemented when the vehicle 1 operates in thermal mode, that is to say that only the thermal engine 7 ensures traction of the vehicle.

Abstract

The invention essentially relates to a method for optimising the recharging of a hybrid vehicle battery. When the clutch (10) is in the open position and/or when the gearbox (8) is in neutral, the heat engine (7) is at idling speed (W1) by default when the charge status (SOC) of the high-voltage battery (19) is below a parameterisable threshold or a raised idling speed (W2) when the charge status (SOC) of the high-voltage battery (19) is above the parameterisable threshold in order to increase the power generated by the first electrical machine (11) in order to recharge the battery.

Description

PROCEDE POUR OPTIMISER LA RECHARGE DE LA BATTERIE D'UN  METHOD FOR OPTIMIZING THE RECHARGING OF THE BATTERY OF A
VEHICULE HYBRIDE  HYBRID VEHICLE
[01 ] L'invention concerne un procédé pour optimiser la recharge de la batterie d'un véhicule hybride. [02] L'invention trouve une application particulièrement avantageuse dans le domaine des véhicules hybrides comportant un premier train tracté à l'aide d'un moteur thermique et un deuxième train tracté électriquement. [01] The invention relates to a method for optimizing the charging of the battery of a hybrid vehicle. [02] The invention finds a particularly advantageous application in the field of hybrid vehicles having a first train towed with a heat engine and a second train towed electrically.
[03] L'invention a notamment pour but d'améliorer la disponibilité d'énergie sur le train tracté électriquement en particulier lorsque le véhicule fonctionne en mode 4x4. [03] The invention aims in particular to improve the availability of energy on the train towed electrically, particularly when the vehicle operates in 4x4 mode.
[04] On connaît des véhicules hybrides comportant un moteur thermique assurant la traction du train avant. A cet effet, un embrayage assure la liaison entre d'une part le moteur thermique et d'autre part une boîte de vitesses connectée au train avant. Ce moteur thermique présente un régime de ralenti, de l'ordre de 750 tours/min, lorsque l'embrayage est ouvert et/ou la boîte de vitesse est au neutre. [04] Hybrid vehicles are known comprising a heat engine ensuring the traction of the front axle. For this purpose, a clutch ensures the connection between the engine on the one hand and a gearbox connected to the nose gear on the other hand. This engine has an idle speed, of the order of 750 revolutions / min, when the clutch is open and / or the gearbox is in neutral.
[05] Ce moteur est associé mécaniquement à une machine électrique avant de type alterno/démarreur. Cette machine permet notamment de recharger les batteries du véhicule lorsqu'elle est entraînée par le moteur thermique (mode générateur). Cette machine assure également le démarrage du moteur thermique lorsqu'elle fonctionne en mode moteur. Dans certaines situations de vie, cette machine peut même participer à la traction du véhicule. [05] This engine is mechanically associated with a front electric alternator / starter type machine. This machine makes it possible in particular to recharge the batteries of the vehicle when it is driven by the engine (generator mode). This machine also starts the engine when running in engine mode. In certain life situations, this machine can even participate in the traction of the vehicle.
[06] Ces véhicules comportent également une machine électrique assurant la traction du train arrière via un réducteur et un dispositif d'accouplement par exemple de type crabot. Par opposition aux véhicules 4x4 traditionnels, la traction du train avant et la traction du train arrière sont indépendantes mécaniquement l'une de l'autre. [06] These vehicles also comprise an electric machine ensuring the traction of the rear axle via a gearbox and a coupling device for example dog-type. As opposed to traditional 4x4 vehicles, front-wheel drive and rear-wheel drive are mechanically independent of each other.
[07] La machine électrique avant et la machine électrique arrière sont reliées à une batterie haute tension par l'intermédiaire d'un réseau électrique. Cette batterie haute tension est en relation avec un réseau de bord basse tension par l'intermédiaire d'un convertisseur continu/continu. [07] The front electric machine and the rear electric machine are connected to a high voltage battery via an electrical network. This high voltage battery is in connection with a low voltage onboard network via a DC / DC converter.
[08] Un système de régulation de freinage est généralement installé sur les roues du véhicule, ce système permettant d'éviter le blocage des roues et le cas échéant de rétablir une trajectoire du véhicule. [08] A brake control system is generally installed on the wheels of the vehicle, this system making it possible to prevent the wheels from locking and if necessary to re-establish a trajectory of the vehicle.
[09] En mode 4x4 sélectionné par le conducteur à l'aide d'une molette, le couple souhaité par le conducteur est réparti sur le train avant et le train arrière du véhicule. Le couple disponible sur le train arrière dépend directement du niveau de charge de la batterie. En effet, plus le niveau de charge est élevé, plus le couple maximal disponible est important car la puissance de décharge de la batterie est élevée. A l'inverse, plus le niveau de charge est bas, plus le couple disponible est faible car la puissance de décharge de la batterie est faible. [09] In 4x4 mode selected by the driver using a wheel, the torque desired by the driver is distributed on the front and rear axle of the vehicle. The available torque on the rear axle depends directly on the level of charge of the battery. Indeed, the higher the level of charge, the higher the maximum available torque is important because the discharge power of the battery is high. Conversely, the lower the level of charge, the lower the available torque because the power of discharge of the battery is low.
[010] L'invention a notamment pour but de proposer un moyen de recharger efficacement la batterie haute tension et optimiser ainsi le couple disponible en mode 4x4. [010] The invention is intended to provide a way to effectively recharge the high voltage battery and optimize the available torque in 4x4 mode.
[01 1 ] A cet effet, on augmente le régime de ralenti pour augmenter la puissance disponible à la machine avant et donc la puissance de recharge de la batterie lorsque l'état de charge de la batterie est inférieur à un seuil paramétrable compris entre 10 et 50% de l'état de charge maximum. [01 1] For this purpose, the idle speed is increased to increase the power available to the machine before and therefore the recharging power of the battery when the state of charge of the battery is less than a configurable threshold of between 10 and 50% of the maximum state of charge.
[012] Le régime de ralenti repasse au régime de ralenti par défaut lorsque l'état de charge de la batterie redevient supérieur au seuil paramétrable. [012] The idle speed returns to the default idle speed when the state of charge of the battery becomes greater than the threshold parameterizable.
[013] L'invention concerne donc un procédé pour optimiser la recharge de la batterie d'un véhicule hybride comportant : [013] The invention therefore relates to a method for optimizing the charging of the battery of a hybrid vehicle comprising:
- un moteur thermique associé mécaniquement à une première machine électrique,  a heat engine mechanically associated with a first electric machine,
- un embrayage installé entre le moteur thermique et une boîte de vitesses en relation avec un des trains du véhicule,  a clutch installed between the heat engine and a gearbox in connection with one of the trains of the vehicle,
- une deuxième machine électrique destinée à assurer la traction de l'autre train du véhicule, - une batterie haute tension en relation avec les deux machines électriques,a second electrical machine intended to ensure the traction of the other train of the vehicle, a high voltage battery in connection with the two electrical machines,
- la première machine étant susceptible d'être entraînée par le moteur thermique lorsque la première machine fonctionne en mode générateur pour recharger la batterie haute tension, the first machine being capable of being driven by the heat engine when the first machine is operating in generator mode to recharge the high-voltage battery,
caractérisé en ce que lorsque l'embrayage est en position ouverte et/ou que la boîte de vitesses est au neutre : characterized in that when the clutch is in the open position and / or the gearbox is in neutral:
- le moteur thermique présente un régime au ralenti par défaut lorsque l'état de charge de la batterie haute tension est inférieur à un seuil paramétrable ou  the heat engine has an idle speed by default when the state of charge of the high voltage battery is below a parameterizable threshold or
- un régime de ralenti augmenté supérieur au régime de ralenti par défaut lorsque l'état de charge de la batterie haute tension est supérieur au seuil paramétrable afin d'accroître la puissance générée par la première machine électrique pour recharger la batterie haute tension. an increased idle speed higher than the default idle speed when the state of charge of the high voltage battery is higher than the configurable threshold in order to increase the power generated by the first electric machine to recharge the high voltage battery.
[014] Selon une mise en œuvre, le régime de ralenti augmenté est de l'ordre de 10 à 40% plus élevé que le régime de ralenti par défaut. [014] According to one implementation, the increased idle speed is of the order of 10 to 40% higher than the default idle speed.
[015] Selon une mise en œuvre, le régime de ralenti par défaut est de l'ordre de 750 tours/min. [015] According to one implementation, the default idle speed is of the order of 750 revolutions / min.
[016] Selon une mise en œuvre, le régime de ralenti augmenté est de l'ordre de 950 tours/min. [017] Selon une mise en œuvre, le seuil paramétrable est de l'ordre de 10 à 50% de l'état de charge maximal de la batterie haute tension. [016] According to one implementation, the increased idling speed is of the order of 950 revolutions / min. [017] According to one implementation, the parameterizable threshold is of the order of 10 to 50% of the maximum state of charge of the high voltage battery.
[018] L'invention sera mieux comprise à la lecture de la description qui suit et à l'examen des figures qui l'accompagnent. Ces figures ne sont données qu'à titre illustratif mais nullement limitatif de l'invention. Elles montrent : [018] The invention will be better understood by reading the following description and examining the figures that accompany it. These figures are given for illustrative but not limiting of the invention. They show :
[019] Figure 1 : une représentation schématique d'un véhicule hybride mettant en œuvre le procédé selon l'invention ; [019] Figure 1: a schematic representation of a hybrid vehicle implementing the method according to the invention;
[020] Figure 2 : une représentation graphique de la puissance de fournie par la machine avant (en Watts) en fonction du régime du moteur thermique (en tours/min). [021 ] Les éléments identiques conservent les mêmes références d'une Figure à l'autre. [020] Figure 2: a graphical representation of the power of the machine before (in Watts) according to the speed of the engine (in revolutions / min). [021] The identical elements retain the same references from one figure to another.
[022] La Figure 1 montre un véhicule 1 hybride mettant en œuvre le procédé selon l'invention comportant un train avant 2 et un train arrière 3 indépendants mécaniquement l'un de l'autre. [022] Figure 1 shows a hybrid vehicle 1 implementing the method according to the invention comprising a front axle 2 and a rear axle 3 mechanically independent of one another.
[023] Un groupe moto-propulseur 5 classique assure la traction du train avant 2 du véhicule. Plus précisément, ce groupe 5 comporte un moteur 7 thermique en relation avec une boîte 8 de vitesses manuelle pilotée (BVMP) par l'intermédiaire d'un embrayage 10 classique par exemple un embrayage à garniture sec ou humide. Cette boîte 8 de vitesses est reliée au train avant 2 par l'intermédiaire d'une descente de pont (non représentée). En variante, le groupe 5 moto-propulseur pourrait comporter une boîte 8 de vitesses automatique. [023] A conventional powertrain 5 ensures the traction of the front axle 2 of the vehicle. More specifically, this group 5 comprises a thermal engine 7 in connection with a manual gearbox 8 controlled (BVMP) via a conventional clutch 10 for example a clutch dry or wet trim. This gearbox 8 is connected to the nose gear 2 through a lower deck (not shown). Alternatively, the powertrain 5 group could include an automatic gearbox 8.
[024] Par ailleurs, une machine 1 1 électrique est associée mécaniquement au moteur 7 thermique. Lorsque la machine 1 1 est entraînée par le moteur 7, elle fonctionne en mode générateur et fournit du courant à de la batterie haute tension 19 pour la recharger. La machine 1 1 peut également fonctionner en mode moteur pour assurer le démarrage du moteur 7 thermique. Dans certaines situations de vie, la machine 1 1 assure également la traction du train avant 2 en fournissant du couple (mode boost). [024] Furthermore, an electric machine 1 1 is mechanically associated with the thermal motor 7. When the machine 1 1 is driven by the motor 7, it operates in generator mode and supplies power to the high voltage battery 19 to recharge it. The machine 1 1 can also operate in engine mode to start the engine 7 thermal. In certain life situations, the machine 1 1 also ensures the traction of the front axle 2 by providing torque (boost mode).
[025] Un starter 13 est utilisé pour démarrer le moteur 7 en cas de températures très basses dans le cas où la machine avant 1 1 n'est pas capable d'assurer cette fonction. Si besoin, un système 14 de climatisation est relié mécaniquement au moteur 7 et à la machine avant 1 1 . [026] En outre, une machine 15 électrique assure la traction du train arrière 3 du véhicule. A cet effet, la machine 15 est reliée au train arrière 3 par l'intermédiaire d'un embrayage 16 et d'un ensemble 17 de démultiplication. Cet embrayage 16 prend par exemple la forme d'un crabot, tandis que l'ensemble 17 de démultiplication est à rapport unique, même s'il pourrait en variante présenter plusieurs rapports. [027] Les deux machines 1 1 et 15 sont reliées entre elles par l'intermédiaire d'un réseau électrique. Plus précisément, les machines 1 1 et 15 sont reliées à une batterie 19 haute tension par l'intermédiaire d'un onduleur 21 capable de hacher la tension continue de la batterie 19 pour alimenter les machines 1 1 et 15 électriques lorsque ces dernières fonctionnent en mode moteur. Lorsque ces machines électriques 1 1 et 15 fonctionnent en mode générateur pour recharger la batterie 19, l'onduleur 21 est capable de transformer la tension alternative produite par les machines 1 1 et 15 en tension continue appliquée sur les bornes de la batterie 19. [028] La batterie 19 est connectée à un convertisseur 20 continu/continu qui transforme la tension continue haute tension de la batterie 19 en une tension acceptable par le starter 13 et par une batterie 22 basse tension connectée au réseau 24 de bord du véhicule. [025] A starter 13 is used to start the engine 7 in case of very low temperatures in the case where the machine before 1 1 is not able to perform this function. If necessary, a system 14 of air conditioning is mechanically connected to the engine 7 and the machine before 1 1. [026] In addition, an electric machine 15 provides traction of the rear axle 3 of the vehicle. For this purpose, the machine 15 is connected to the rear axle 3 via a clutch 16 and a set 17 of gearing. This clutch 16 takes for example the form of a clutch, while the set 17 of gear ratio is single report, even if it could alternatively have several reports. [027] The two machines 1 1 and 15 are interconnected via an electrical network. More specifically, the machines 1 1 and 15 are connected to a high voltage battery 19 via an inverter 21 capable of chopping the DC voltage of the battery 19 to power the machines 1 1 and 15 electrical when they operate in motor mode. When these electrical machines 1 1 and 15 operate in generator mode to recharge the battery 19, the inverter 21 is capable of transforming the AC voltage produced by the machines 1 1 and 15 DC voltage applied to the terminals of the battery 19. [ 028] The battery 19 is connected to a DC / DC converter which converts the high voltage DC voltage of the battery 19 into a voltage acceptable by the choke 13 and a low voltage battery 22 connected to the vehicle edge network 24.
[029] De préférence, le véhicule 1 est équipé d'un système 25 de régulation de freinage classique de type ESP ou ABS permettant de gérer les efforts de freinage en cas de freinage d'urgence, afin d'assurer le contrôle de la trajectoire du véhicule et/ou d'éviter le blocage des roues. [029] Preferably, the vehicle 1 is equipped with a conventional braking control system 25 type ESP or ABS to manage the braking force during emergency braking, to ensure the control of the trajectory of the vehicle and / or to avoid wheel lock.
[030] Un calculateur 28 commande les différents organes du véhicule pour effectuer notamment la répartition du couple Cg demandé par le conducteur entre le train avant 2 (couple Ccns_av) et le train arrière 3 (couple Ccns_ar). Le couple demandé Cg est calculé, par le module 29 dit module d'interprétation de la volonté du conducteur (IVC), notamment en fonction de l'enfoncement de la pédale 31 d'accélérateur et de la vitesse V du véhicule mesurée par un capteur 33 associé à une roue. [031 ] Par ailleurs, l'embrayage 10 et la boîte 8 de vitesses renvoient leur état respectif EE et EB au calculateur 28. La batterie 19 renvoie également son état de charge au calculateur 28. Une molette 35 permet au conducteur de choisir le mode de fonctionnement 4x4 du véhicule 1 dans lequel le couple Cg sera réparti sensiblement de manière homogène entre le train avant 2 et le train arrière 3 du véhicule. [030] A computer 28 controls the various components of the vehicle to perform in particular the distribution of torque Cg requested by the driver between the front axle 2 (torque Ccns_av) and the rear axle 3 (torque Ccns_ar). The requested torque Cg is calculated by the module 29 called the driver will interpretation module (IVC), in particular according to the depression of the accelerator pedal 31 and the vehicle speed V measured by a sensor 33 associated with a wheel. [031] Furthermore, the clutch 10 and the gearbox 8 return their respective states E E and E B to the computer 28. The battery 19 also returns its state of charge to the computer 28. A wheel 35 allows the driver to choose the 4x4 operating mode of the vehicle 1 in which the torque Cg will be distributed substantially uniformly between the front axle 2 and the rear axle 3 of the vehicle.
[032] Comme montré sur la Figure 2, le mode 4x4 ayant été activé par l'utilisateur à l'aide de la molette 35, lorsque le calculateur 28 détecte que l'embrayage 10 est à l'état ouvert (EE=0) et/ou que la boîte 8 de vitesses est au neutre (EB=0) et que l'état de charge SOC est supérieur à un seuil paramétrable, le moteur 7 présente un régime W1 de ralenti par défaut qui est généralement de l'ordre de 750 tours/minute. Une telle situation de vie est observable notamment lorsque le véhicule 1 est à l'arrêt, le moteur 7 thermique ayant été démarré. [032] As shown in Figure 2, the 4x4 mode has been activated by the user using the wheel 35, when the computer 28 detects that the clutch 10 is in the open state (E E = 0) and / or that the gearbox 8 is in neutral (E B = 0) and that the SOC load state is greater than a parameterizable threshold, the Engine 7 has a default idle speed W1 which is generally of the order of 750 rpm. Such a life situation is observable especially when the vehicle 1 is stationary, the thermal engine 7 having been started.
[033] Conformément à l'invention, lorsque le calculateur 28 détecte que l'embrayage 10 est à l'état ouvert et/ou que la boîte 8 de vitesses est au neutre, et que l'état de charge SOC de la batterie 19 est inférieur au seuil paramétrable, on déplace 38 le point de fonctionnement du moteur 7 thermique, de sorte que le moteur 7 présente un régime W2 de ralenti augmenté supérieur au régime W1 par défaut. L'invention permet ainsi d'augmenter le régime de la machine 1 1 fonctionnant en mode générateur pour recharger la batterie 19, et donc d'améliorer la disponibilité d'énergie sur le train 2 tracté électriquement. [033] In accordance with the invention, when the computer 28 detects that the clutch 10 is in the open state and / or that the gearbox 8 is in neutral, and that the state of charge SOC of the battery 19 is below the parameterizable threshold, the operating point of the thermal motor 7 is moved, so that the motor 7 has an increased idle speed W2 higher than the default speed W1. The invention thus makes it possible to increase the speed of the machine 1 1 operating in generator mode to recharge the battery 19, and thus to improve the availability of energy on the train 2 electrically towed.
[034] De préférence, le régime W2 de ralenti augmenté est de l'ordre de 10 à 40% plus élevé que le régime W1 de ralenti par défaut. [034] Preferably, the increased idle speed W2 is of the order of 10 to 40% higher than the default idle speed W1.
[035] Ici, le régime W1 présente par exemple une valeur de 950 tours/minutes environ, de sorte que la puissance Pdisp disponible pour recharger la batterie 19 passe de 8kW (pour W1 ) à 9kW (pour W2), ce qui correspond à une augmentation de la puissance disponible Pdisp de 12%. [035] Here, the speed W1 for example has a value of 950 revolutions / minute, so that the power Pdisp available to recharge the battery 19 goes from 8kW (for W1) to 9kW (for W2), which corresponds to an increase in the available power Pdisp of 12%.
[036] Dès que l'état de charge SOC de la batterie 19 repassera au dessus du seuil paramétrable, on re-déplace 39 le point de fonctionnement du moteur 7 thermique de sorte que le régime de ralenti du moteur 7 repasse du régime augmenté W2 au régime par défaut W1 . [036] As soon as the state of charge SOC of the battery 19 will return above the parameterizable threshold, the operating point of the thermal engine 7 is re-moved so that the idle speed of the engine 7 returns from the increased speed W2 at the default speed W1.
[037] Dans un exemple, le seuil paramétrable est de l'ordre de 10 à 50% de l'état de charge maximal de la batterie haute tension 19. [037] In one example, the parameterizable threshold is of the order of 10 to 50% of the maximum state of charge of the high-voltage battery 19.
[038] L'invention peut également être mise en œuvre lorsque le véhicule ne fonctionne pas en mode 4x4 afin d'optimiser la recharge de la batterie 19. Ainsi l'invention pourra être mise en œuvre lorsque le véhicule 1 fonctionne en mode thermique, c'est-à-dire que seul le moteur 7 thermique assure la traction du véhicule. [038] The invention can also be implemented when the vehicle does not operate in 4x4 mode to optimize the recharge of the battery 19. Thus the invention can be implemented when the vehicle 1 operates in thermal mode, that is to say that only the thermal engine 7 ensures traction of the vehicle.

Claims

REVENDICATIONS
1 . Procédé pour optimiser la recharge de la batterie d'un véhicule hybride comportant : 1. A method for optimizing the charging of the battery of a hybrid vehicle comprising:
- un moteur (7) thermique associé mécaniquement à une première machine (1 1 ) électrique,  a thermal motor (7) mechanically associated with a first electric machine (1 1),
- un embrayage (10) installé entre le moteur (7) thermique et une boîte (8) de vitesses en relation avec un des trains (2) du véhicule,  a clutch (10) installed between the engine (7) and a gear box (8) in relation to one of the trains (2) of the vehicle,
- une deuxième machine (15) électrique destinée à assurer la traction de l'autre train (3) du véhicule,  a second electric machine (15) intended to ensure the traction of the other train (3) of the vehicle,
- une batterie (19) haute tension en relation avec les deux machines (1 1 , 15) électriques,  - a battery (19) high voltage in relation to the two machines (1 1, 15) electrical,
- la première machine (1 1 ) étant susceptible d'être entraînée par le moteur (7) thermique lorsque la première machine (1 1 ) fonctionne en mode générateur pour recharger la batterie (19) haute tension,  the first machine (1 1) being capable of being driven by the thermal motor (7) when the first machine (1 1) operates in generator mode to recharge the high-voltage battery (19),
caractérisé en ce que lorsque l'embrayage (10) est en position ouverte et/ou que la boîte (8) de vitesses est au neutre :  characterized in that when the clutch (10) is in the open position and / or the gearbox (8) is at neutral:
- le moteur (7) thermique présente un régime (W1 ) au ralenti par défaut lorsque l'état de charge (SOC) de la batterie (19) haute tension est inférieur à un seuil paramétrable ou  the thermal motor (7) has a speed (W1) at idle speed by default when the state of charge (SOC) of the high-voltage battery (19) is below a parameterizable threshold or
- un régime (W2) de ralenti augmenté supérieur au régime (W1 ) de ralenti par défaut lorsque l'état de charge (SOC) de la batterie (19) haute tension est supérieur au seuil paramétrable afin d'accroître la puissance générée par la première machine (1 1 ) électrique pour recharger la batterie (19) haute tension.  a higher idle speed (W2) than the default idle speed (W1) when the charge state (SOC) of the high voltage battery (19) is higher than the parameterizable threshold in order to increase the power generated by the first machine (1 1) electric to recharge the battery (19) high voltage.
2. Procédé selon la revendication 1 , caractérisé en ce que le régime de ralenti (W2) augmenté est de l'ordre de 10 à 40% plus élevé que le régime de ralenti (W1 ) par défaut. 2. Method according to claim 1, characterized in that the increased idling speed (W2) is of the order of 10 to 40% higher than the idle speed (W1) by default.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le régime de ralenti (W1 ) par défaut est de l'ordre de 750 tours/min. 3. Method according to claim 1 or 2, characterized in that the idle speed (W1) by default is of the order of 750 rpm.
4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le régime de ralenti (W2) augmenté est de l'ordre de 950 tours/min. 4. Method according to one of claims 1 to 3, characterized in that the increased idling speed (W2) is of the order of 950 revolutions / min.
5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le seuil paramétrable est de l'ordre de 10 à 50% de l'état de charge (SOC) maximal de la batterie (19) haute tension. 5. Method according to one of claims 1 to 4, characterized in that the parameterizable threshold is of the order of 10 to 50% of the state of charge (SOC) maximum battery (19) high voltage.
EP10810786A 2010-01-28 2010-12-23 Method for optimising hybrid vehicle battery recharging Withdrawn EP2529467A1 (en)

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US20120302397A1 (en) 2012-11-29
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CN102742117A (en) 2012-10-17
FR2955715A1 (en) 2011-07-29

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