FR3101030A1 - High voltage battery thermal conditioning device for hybrid vehicles - Google Patents

High voltage battery thermal conditioning device for hybrid vehicles Download PDF

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Publication number
FR3101030A1
FR3101030A1 FR1910405A FR1910405A FR3101030A1 FR 3101030 A1 FR3101030 A1 FR 3101030A1 FR 1910405 A FR1910405 A FR 1910405A FR 1910405 A FR1910405 A FR 1910405A FR 3101030 A1 FR3101030 A1 FR 3101030A1
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France
Prior art keywords
compressor
battery
electric motor
voltage battery
thermal conditioning
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Granted
Application number
FR1910405A
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French (fr)
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FR3101030B1 (en
Inventor
Pietro Matteo Pinazzi
Marco SIMONETTI
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Stellantis Auto Sas Fr
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PSA Automobiles SA
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Priority to FR1910405A priority Critical patent/FR3101030B1/en
Priority to PCT/FR2020/051374 priority patent/WO2021053278A1/en
Publication of FR3101030A1 publication Critical patent/FR3101030A1/en
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Classifications

    • 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
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
    • 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
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • 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
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • 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
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/20—Drive modes; Transition between modes
    • B60L2260/22—Standstill, e.g. zero speed
    • 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
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/12—Emission reduction of exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
    • F01N2340/06—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the arrangement of the exhaust apparatus relative to the turbine of a turbocharger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/11—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hybrid vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/08—Parameters used for exhaust control or diagnosing said parameters being related to the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/10—Parameters used for exhaust control or diagnosing said parameters being related to the vehicle or its components
    • F01N2900/104—Battery status
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1626—Catalyst activation 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • 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
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

L’invention concerne, d’une part, un dispositif de conditionnement thermique d’une batterie (B) à haut voltage pour le démarrage à froid du moteur électrique d’un véhicule hybride équipé d’un moteur thermique, d’une turbine (1), d’au moins un compresseur (2, 2a, 3), d’un échappement catalytique (E) pourvu de moyens de chauffage (C) et d’une batterie standard, caractérisé en ce que ledit compresseur est actionné électriquement au moyen de ladite batterie standard et est associé à une vanne trois voies (20) montée sur un piquage situé entre ledit compresseur (2, 2a, 3) et le moteur (M) et raccordée via une conduite d’air (21) aux moyens de chauffage (C) de l’échappement catalytique (E) qui sont eux-mêmes raccordés, via une conduite (22), à un échangeur thermique (10) destiné à réchauffer la batterie (B) à haut voltage et, d’autre part, un procédé de conditionnement thermique de la batterie à haut-voltage au moyen dudit dispositif. Figure de l’abrégé : Fig. 1AThe invention relates, on the one hand, to a device for thermal conditioning of a high voltage battery (B) for cold starting of the electric motor of a hybrid vehicle equipped with a thermal engine, a turbine ( 1), at least one compressor (2, 2a, 3), a catalytic exhaust (E) provided with heating means (C) and a standard battery, characterized in that said compressor is operated electrically at the means of said standard battery and is associated with a three-way valve (20) mounted on a branch located between said compressor (2, 2a, 3) and the motor (M) and connected via an air line (21) to the means heater (C) of the catalytic exhaust (E) which are themselves connected, via a pipe (22), to a heat exchanger (10) intended to heat the battery (B) at high voltage and, other part, a method of thermal conditioning of the high-voltage battery by means of said device. Abstract figure: Fig. 1A

Description

Dispositif de conditionnement thermique des batteries à haut voltage pour véhicules hybridesThermal conditioning device for high voltage batteries for hybrid vehicles

L’invention s’applique au domaine de l’alimentation électrique des moteurs des véhicules hybrides.The invention applies to the field of electrical power supply for motors of hybrid vehicles.

Plus particulièrement, l’invention concerne un dispositif et un procédé de conditionnement thermique des batteries à haut-voltage utilisées pour l’alimentation des moteurs électriques des véhicules hybrides et, notamment, des véhicules hybrides rechargeables.More particularly, the invention relates to a device and a process for the thermal conditioning of high-voltage batteries used to supply the electric motors of hybrid vehicles and, in particular, rechargeable hybrid vehicles.

Un véhicule hybride est équipé d’au moins deux groupes de motorisation différents comprenant, respectivement, un moteur thermique et au moins un moteur électrique.A hybrid vehicle is equipped with at least two different powertrain groups comprising, respectively, a heat engine and at least one electric motor.

Il existe aussi aujourd’hui des véhicules hybrides rechargeables (Plug-in- Hybrid -Electric Vehicleou PHEV) qui disposent, notamment, d’une batterie spécifique dédiée essentiellement à la motorisation électrique. Cette batterie à haut voltage (de tension de fonctionnement comprise entre 300V et 500V et dont la puissance est généralement comprise entre 90 kW et 100 kW) se recharge lorsque le véhicule roule par récupération de l’énergie de décélération ou lorsque le véhicule est à l’arrêt par un branchement sur le secteur.Today there are also plug-in hybrid vehicles ( Plug-in- Hybrid -Electric Vehicle or PHEV) which have, in particular, a specific battery dedicated essentially to electric motorization. This high-voltage battery (with an operating voltage between 300V and 500V and whose power is generally between 90 kW and 100 kW) is recharged when the vehicle is moving by recovering energy from deceleration or when the vehicle is at rest. shutdown by connecting to the mains.

Ce type de véhicule est capable de fonctionner en mode tout électrique indépendamment du moteur thermique et permet de concilier les avantages d’un véhicule électrique pour de courts trajets et d’un véhicule thermique pour les plus longues distances.This type of vehicle is capable of operating in all-electric mode independently of the combustion engine and makes it possible to reconcile the advantages of an electric vehicle for short journeys and a combustion vehicle for longer distances.

Toutefois, le démarrage à froid de ces véhicules hybrides est problématique, en particulier, en présence de basses températures. En effet, dans de telles conditions climatiques, le véhicule ne peut pas démarrer en mode électrique malgré une pleine charge de la batterie parce que sa température ne lui permet pas de fournir l'énergie électrique nécessaire au fonctionnement du moteur électrique.However, the cold start of these hybrid vehicles is problematic, in particular, in the presence of low temperatures. Indeed, in such climatic conditions, the vehicle cannot start in electric mode despite a full charge of the battery because its temperature does not allow it to supply the electric energy necessary for the operation of the electric motor.

Il en résulte que le véhicule va devoir démarrer et rouler en utilisant son moteur thermique jusqu’à ce que la température de la batterie du moteur électrique se réchauffe, ce qui est pénalisant pour les performances du véhicule et entraîne des nuisances pour l’environnement (pollution).As a result, the vehicle will have to start and drive using its internal combustion engine until the temperature of the electric motor battery warms up, which is penalizing for vehicle performance and causing harm to the environment ( pollution).

Il est connu de réchauffer des batteries électriques de véhicules automobiles au moyen d’un dispositif tel que celui décrit dans le US10005450B2. Cependant, ce dispositif qui utilise les calories des gaz d’échappement nécessite donc que le moteur thermique soit en fonction. Par conséquent, ce dispositif n’est pas adapté au chauffage de la batterie à haut-voltage du moteur électrique d’un véhicule hybride dans lequel le moteur thermique doit rester à l’arrêt pour le démarrage.It is known to heat electric batteries of motor vehicles by means of a device such as that described in US10005450B2. However, this device, which uses the calories of the exhaust gases, therefore requires the heat engine to be in operation. Consequently, this device is not suitable for heating the high-voltage battery of the electric motor of a hybrid vehicle in which the internal combustion engine must remain stationary for starting.

Par ailleurs, dans certains véhicules hybrides, la motorisation est équipée d’un compresseur, d’une turbine et le moteur thermique est pourvu d’un échappement catalytique. Cet échappement catalytique est souvent muni de moyens de chauffage électriques (« Electrical H eated C atalyst » ou EHC) alimentés par une batterie standard et classique de 12V (dite SLI pour «Start- Lighting -Ignition») équipant habituellement tous les véhicules automobiles y compris les véhicules hybrides.Furthermore, in some hybrid vehicles, the engine is equipped with a compressor, a turbine and the heat engine is provided with a catalytic exhaust. This catalytic exhaust is often fitted with electric heating means (“ Electrical H ated Catalyst ” or EHC) powered by a standard and conventional 12V battery ( known as SLI for “ Start- Lighting -Ignition ”) usually fitted to all motor vehicles including including hybrid vehicles.

Dans ce contexte, l’invention propose de résoudre le problème de l’inactivation à froid de la batterie à haut voltage du moteur électrique en la réchauffant grâce aux équipements traditionnels du moteur thermique et en utilisant une combinaison entre un compresseur et une turbine, au moins l’un d’entre eux étant alimenté électriquement (e-turbine ou e-compresseur) et les moyens de chauffage du système d’échappement catalytique.In this context, the invention proposes to solve the problem of the cold inactivation of the high-voltage battery of the electric motor by heating it thanks to the traditional equipment of the thermal engine and by using a combination between a compressor and a turbine, at the at least one of them being electrically powered (e-turbine or e-compressor) and the means for heating the catalytic exhaust system.

Ce but est atteint au moyen d’un dispositif de conditionnement thermique d’une batterie à haut voltage pour le démarrage à froid du moteur électrique d’un véhicule hybride, ledit véhicule étant équipé d’un moteur thermique, d’une turbine, d’au moins un compresseur, d’un échappement catalytique pourvu de moyens de chauffage et d’une batterie standard caractérisé en ce que ledit compresseur est actionné électriquement au moyen de ladite batterie standard et est associé à une vanne trois voies montée sur un piquage situé entre ledit compresseur et le moteur et raccordée via une conduite d’air aux moyens de chauffage de l’échappement catalytique qui sont eux-mêmes raccordés, via une conduite, à un échangeur thermique destiné à réchauffer la batterie à haut voltaThis object is achieved by means of a thermal conditioning device for a high voltage battery for cold starting the electric motor of a hybrid vehicle, said vehicle being equipped with a heat engine, a turbine, at least one compressor, a catalytic exhaust provided with heating means and a standard battery, characterized in that said compressor is electrically actuated by means of said standard battery and is associated with a three-way valve mounted on a tapping located between said compressor and the engine and connected via an air line to the means for heating the catalytic exhaust which are themselves connected, via a line, to a heat exchanger intended to heat the high-voltaic battery

Selon un premier mode de réalisation du dispositif de l’invention, le compresseur est entraîné par la turbine qui est elle-même entraînée par un moteur électrique alimenté par ladite batterie standard.According to a first embodiment of the device of the invention, the compressor is driven by the turbine which is itself driven by an electric motor powered by said standard battery.

Selon un second mode de réalisation, le compresseur est directement entraîné par un moteur électrique alimenté par ladite batterie standard.According to a second embodiment, the compressor is directly driven by an electric motor powered by said standard battery.

Selon un troisième mode de réalisation, le dispositif comprend un second compresseur disposé en amont du premier compresseur, c’est-à-dire au plus près de la prise d’air, et entraîné par un moteur électrique alimenté par ladite batterie standard.According to a third embodiment, the device comprises a second compressor arranged upstream of the first compressor, that is to say as close as possible to the air intake, and driven by an electric motor powered by said standard battery.

Dans ce dernier mode, la vanne trois voies est montée sur un piquage situé entre le premier compresseur et le second compresseur.In this last mode, the three-way valve is mounted on a connection located between the first compressor and the second compressor.

De préférence, l’échangeur thermique est pourvu d’un capteur de température, couplé à des moyens d’asservissement du compresseur et/ou des moyens de chauffage de l’échappement catalytique.Preferably, the heat exchanger is provided with a temperature sensor, coupled to means for controlling the compressor and/or means for heating the catalytic exhaust.

Un autre objet de l’invention est un procédé de conditionnement thermique d’une batterie à haut voltage de véhicule hybride en vue d’un démarrage à froid du moteur électrique au moyen du dispositif selon l’une des revendications précédentes, caractérisé en ce qu’on alimente électriquement avec la batterie standard, d’une part, la turbine ou l’un des compresseurs et, d’autre part, les moyens de chauffage de l’échappement catalytique pour produire un flux d’air chaud que l’on envoie vers la batterie à haut voltage afin de la réchauffer jusqu’à ce que sa température atteigne sa température minimale d’activation.Another object of the invention is a process for thermal conditioning of a high-voltage battery of a hybrid vehicle with a view to cold starting the electric motor by means of the device according to one of the preceding claims, characterized in that 'one electrically supplies with the standard battery, on the one hand, the turbine or one of the compressors and, on the other hand, the means of heating of the catalytic exhaust to produce a flow of hot air which one sends high voltage to the battery to heat it up until its temperature reaches its minimum activation temperature.

Ainsi, une fois que la batterie à haut voltage est à la température normale d’activation, le moteur électrique du véhicule est alimenté et peut alors démarrer.Thus, once the high-voltage battery is at normal activation temperature, the vehicle's electric motor is powered and can then be started.

Selon une variante spécifique, ce procédé est mis en œuvre suite à l’activation préalable par l’utilisateur du véhicule d’une commande spécifique de chauffage automatique de la batterie à haut-voltage.According to a specific variant, this method is implemented following the prior activation by the user of the vehicle of a specific command for automatic heating of the high-voltage battery.

Selon une autre variante, on fait varier le débit du flux d’air issu du compresseur et la puissance des moyens de chauffage de l’échappement catalytique pour contrôler la température de la batterie à haut voltage.According to another variant, the flow rate of the air flow coming from the compressor and the power of the means for heating the catalytic exhaust are varied in order to control the temperature of the high-voltage battery.

Encore un autre objet de l’invention est un véhicule hybride équipé d’un dispositif de conditionnement thermique présentant les caractéristiques définies ci-dessus.Yet another object of the invention is a hybrid vehicle equipped with a thermal conditioning device having the characteristics defined above.

Le procédé de conditionnement thermique peut être mis en œuvre au moyen du dispositif de l’invention quand le véhicule est à l’arrêt en utilisant la batterie standard de 12V, moteur coupé ou en simple stationnement et même pendant que la batterie à haut voltage est branchée sur le secteur pour sa recharge.The thermal conditioning method can be implemented by means of the device of the invention when the vehicle is stationary using the standard 12V battery, engine off or simply parked and even while the high voltage battery is plugged into the mains for charging.

En outre, le procédé de l’invention permet de garantir que le démarrage du véhicule ne s’effectuera qu’au moyen du moteur électrique et non par le moteur thermique ce qui contribue à une économie de carburant et à une préservation de l’environnement.In addition, the method of the invention makes it possible to guarantee that the starting of the vehicle will only take place by means of the electric motor and not by the internal combustion engine, which contributes to fuel economy and preservation of the environment. .

Les zones à zéro émission (dites ZEV) et, notamment, celles situées en milieu urbain, sont donc facilement et librement accessibles par le véhicule hybride équipé du dispositif de l’invention.Zero emission zones (known as ZEV) and, in particular, those located in urban areas, are therefore easily and freely accessible by the hybrid vehicle equipped with the device of the invention.

Par ailleurs, le contrôle de la température de la batterie à haut-voltage assure une plus grande disponibilité de l’énergie électrique, un allongement de la durée de vie de cette batterie et une plus grande fiabilité du véhicule hybride.In addition, controlling the temperature of the high-voltage battery ensures greater availability of electrical energy, an extension of the life of this battery and greater reliability of the hybrid vehicle.

D’autres caractéristiques et avantages de l’invention ressortiront à la lecture de la description qui va suivre, en référence aux figures annexées et détaillées ci-après.Other characteristics and advantages of the invention will become apparent on reading the description which follows, with reference to the appended figures detailed below.

est une vue schématique d’un premier mode de réalisation du dispositif de conditionnement thermique de l’invention. is a schematic view of a first embodiment of the thermal conditioning device of the invention.

est une vue schématique d’un second mode de réalisation du dispositif de conditionnement thermique de l’invention. is a schematic view of a second embodiment of the thermal conditioning device of the invention.

est une vue schématique d’un troisième mode de réalisation du dispositif de conditionnement thermique de l’invention. is a schematic view of a third embodiment of the thermal conditioning device of the invention.

est un graphe représentant un mode de mise en œuvre préférentiel du procédé de l’invention. is a graph representing a preferred mode of implementation of the method of the invention.

Pour plus de clarté, les éléments identiques ou similaires sont repérés par des signes de référence identiques sur l’ensemble des figures.For greater clarity, identical or similar elements are identified by identical reference signs in all the figures.

Naturellement, les modes de mise en œuvre du procédé de l’invention illustrés par les figures présentées ci-dessus et décrites ci-après, ne sont donnés qu'à titre d’exemples non limitatifs. Il est explicitement prévu que l'on puisse proposer et combiner entre eux différents modes pour en proposer d'autres.Naturally, the modes of implementation of the method of the invention illustrated by the figures presented above and described below, are given only by way of non-limiting examples. It is explicitly provided that it is possible to propose and combine different modes to propose others.

L’invention concerne le domaine de l’alimentation du moteur électrique des véhicules hybrides et, plus particulièrement, des véhicules hybrides rechargeables (Plug-in- Hybrid -Electric Vehicleou PHEV).The invention relates to the field of powering the electric motor of hybrid vehicles and, more particularly, rechargeable hybrid vehicles ( Plug-in - Hybrid -Electric Vehicle or PHEV).

De manière générale, un véhicule hybride est équipé d’au moins deux groupes de motorisation différents comprenant, respectivement, un moteur thermique et au moins un moteur électrique.In general, a hybrid vehicle is equipped with at least two different powertrain units comprising, respectively, a heat engine and at least one electric motor.

Les véhicules hybrides rechargeables sont équipés d’une batterie spécifique dédiée essentiellement à la motorisation électrique. Cette batterie délivre un courant électrique continu de haut voltage dont la tension de fonctionnement est comprise entre 300V et 500V et la puissance est de 90 kW à 100 kW.Plug-in hybrid vehicles are equipped with a specific battery dedicated mainly to electric motorization. This battery delivers a high voltage direct current whose operating voltage is between 300V and 500V and the power is 90 kW to 100 kW.

Cette batterie se recharge lorsque le véhicule roule par récupération de l’énergie de décélération ou lorsque le véhicule est à l’arrêt par un branchement sur le secteur, comme pour les véhicules électriques traditionnels. Ce type de véhicule est ainsi capable de fonctionner en mode tout électrique indépendamment du moteur thermique.This battery recharges when the vehicle is moving by recovering deceleration energy or when the vehicle is stationary by connecting it to the mains, as for traditional electric vehicles. This type of vehicle is thus capable of operating in all-electric mode independently of the internal combustion engine.

Toutefois, il s’avère que le démarrage à froid de ces véhicules hybrides est problématique, en particulier, en présence de basses températures ambiantes. En effet, dans de telles conditions, la température de la batterie est inférieure à sa température minimale de fonctionnement et elle n’est donc pas susceptible de fournir l'énergie électrique nécessaire au fonctionnement du moteur électrique.However, it turns out that the cold start of these hybrid vehicles is problematic, especially in the presence of low ambient temperatures. Indeed, in such conditions, the temperature of the battery is lower than its minimum operating temperature and it is therefore not likely to supply the electrical energy necessary for the operation of the electric motor.

Dans de telles conditions, le véhicule va nécessairement démarrer et rouler en utilisant son moteur thermique jusqu’à ce que la température de la batterie du moteur électrique se réchauffe et que le moteur électrique prenne éventuellement le relais.In such conditions, the vehicle will necessarily start and drive using its internal combustion engine until the temperature of the electric motor battery warms up and the electric motor eventually takes over.

Les véhicules hybrides sont équipés d’un compresseur 2 (figures 1A et 1B) ou, selon l’invention, de deux compresseurs (2, 3) (figure 1C) et d’un échappement catalytique E pourvu de moyens de chauffage électriques C (« Electrical Heated Catalyst » ou EHC).Hybrid vehicles are equipped with a compressor 2 (FIGS. 1A and 1B) or, according to the invention, two compressors (2, 3) (FIG. 1C) and a catalytic exhaust E provided with electric heating means C ( “ Electrical Heated Catalyst ” or EHC).

Ces moyens de chauffage peuvent être alimentés par une batterie standard à bas voltage, généralement de 12V (non représentée) dite SLI (pour «Start- Lighting -Ignition») telle que celle équipant habituellement les véhicules automobiles et qui est aussi présente sur les véhicules hybrides. Généralement, cette batterie n’est pas aussi sensible aux basses températures que la batterie B à haut-voltage.These heating means can be powered by a standard low voltage battery, generally 12V (not shown) called SLI (for " Start- Lighting -Ignition ") such as that usually fitted to motor vehicles and which is also present on vehicles hybrids. Generally, this battery is not as sensitive to low temperatures as the high-voltage battery B.

Par conséquent, l’invention consiste à utiliser ces moyens de chauffage pour réchauffer un flux d’air 30 issu d’une boucle comprenant, soit un compresseur 2 classique couplé à une turbine électrique 1 (ou e-turbine) alimentée par la batterie standard, comme illustré par la figure 1A, soit un compresseur 2a entraîné par un moteur électrique 23 (e-compresseur), comme illustré par la figure 1B.Consequently, the invention consists in using these heating means to heat a flow of air 30 from a loop comprising either a conventional compressor 2 coupled to an electric turbine 1 (or e-turbine) powered by the standard battery , as illustrated by FIG. 1A, or a compressor 2a driven by an electric motor 23 (e-compressor), as illustrated by FIG. 1B.

Ce flux d’air à fort débit véhiculant des calories est ensuite envoyé vers la batterie B à haut voltage afin de la conditionner thermiquement. Ce chauffage est effectué jusqu’à ce que la température de la batterie B atteigne sa température minimale d’activation permettant de délivrer un courant électrique suffisant pour assurer le fonctionnement du moteur électrique.This high-speed airflow carrying calories is then sent to the high-voltage battery B in order to thermally condition it. This heating is carried out until the temperature of battery B reaches its minimum activation temperature allowing sufficient electric current to be delivered to operate the electric motor.

Bien entendu, lorsque le moteur thermique M est coupé et que la boucle décrite ci-dessus est alimentée par le courant électrique de la batterie standard, le flux d’air issu du compresseur 2, 2a n’est plus dirigé vers le moteur M mais vers les moyens de chauffage C puis vers la batterie B à haut voltage.Of course, when the combustion engine M is switched off and the loop described above is powered by the electric current from the standard battery, the air flow from the compressor 2, 2a is no longer directed towards the engine M but to the heating means C then to the high voltage battery B.

Selon l’invention, il est prévu que le procédé de conditionnement thermique soit mis en œuvre si la température ambiante est inférieure à la température minimale de fonctionnement (Tmin, figure 2) de la batterie B à haut voltage, comme illustré par les graphes de la figure 2.According to the invention, provision is made for the thermal conditioning method to be implemented if the ambient temperature is lower than the minimum operating temperature (Tmin, FIG. 2) of the high-voltage battery B, as illustrated by the graphs of Figure 2.

Toutefois, ce procédé peut aussi être mis en œuvre dès que le véhicule s’arrête et/ou que la motorisation (thermique ou électrique) est coupée car la température de la batterie à haut-voltage est alors susceptible de baisser rapidement, en particulier, en hiver.However, this method can also be implemented as soon as the vehicle stops and/or the engine (thermal or electric) is switched off because the temperature of the high-voltage battery is then likely to drop rapidly, in particular, in winter.

A titre optionnel, le procédé de l’invention peut prévoir que le chauffage de la batterie à haut-voltage soit effectué automatiquement si l’utilisateur du véhicule a activé au préalable une commande spécifique pour la mise en œuvre du procédé de conditionnement thermique.As an option, the method of the invention can provide for the heating of the high-voltage battery to be carried out automatically if the user of the vehicle has previously activated a specific command for the implementation of the thermal conditioning method.

Le procédé de l’invention comprend également la possibilité de faire varier le débit du flux d’air issu du compresseur 2 et la puissance des moyens de chauffage C de l’échappement catalytique E pour contrôler et, le cas échéant, ajuster, la température de la batterie B à haut voltage.The method of the invention also comprises the possibility of varying the flow rate of the air flow coming from the compressor 2 and the power of the heating means C of the catalytic exhaust E to control and, if necessary, adjust the temperature high voltage battery B.

Le procédé de conditionnement thermique de l’invention est effectué au moyen d’un dispositif spécifique combinant, soit une e-turbine et un compresseur 2 (figure 1A), soit une turbine et un e-compresseur 2a, (figure 1B) alimentant en air sous pression les moyens de chauffage C de l’échappement catalytique E.The thermal conditioning method of the invention is carried out by means of a specific device combining either an e-turbine and a compressor 2 (FIG. 1A), or a turbine and an e-compressor 2a, (FIG. 1B) supplying pressurized air the heating means C of the catalytic exhaust E.

A cet effet et comme prévu dans le mode de réalisation de la figure 1A, la boucle comprenant la turbine 1 alimentée par la batterie standard est couplée au compresseur 2 qui délivre un flux d’air transitant, via une vanne trois voies 20 montée sur un piquage situé entre ledit compresseur 2 et le moteur M, vers une conduite d’air 21 raccordée aux moyens de chauffage C de l’échappement catalytique E.For this purpose and as provided in the embodiment of FIG. 1A, the loop comprising the turbine 1 powered by the standard battery is coupled to the compressor 2 which delivers a transiting air flow, via a three-way valve 20 mounted on a tapping located between said compressor 2 and the engine M, to an air duct 21 connected to the heating means C of the catalytic exhaust E.

Les moyens de chauffage C ont eux-mêmes raccordés, via une seconde conduite 22, à un échangeur thermique 10 associé à un carter (non représenté) dans lequel est logé la batterie B à haut voltage.The heating means C are themselves connected, via a second pipe 22, to a heat exchanger 10 associated with a casing (not shown) in which the high voltage battery B is housed.

De préférence, l’échangeur thermique 10 est pourvu d’un capteur de température 11 couplé à des moyens d’asservissement de la boucle e-turbine 1/compresseur 2 et/ou des moyens de chauffage C de l’échappement catalytique E.Preferably, the heat exchanger 10 is provided with a temperature sensor 11 coupled to means for controlling the e-turbine 1/compressor 2 loop and/or heating means C of the catalytic exhaust E.

Selon un autre mode de réalisation représenté sur la figure 1B, le dispositif comprend une boucle comprenant un e-compresseur 2a entraîné par un moteur électrique 23 alimenté par la batterie standard.According to another embodiment represented in FIG. 1B, the device comprises a loop comprising an e-compressor 2a driven by an electric motor 23 powered by the standard battery.

Comme dans le premier mode de réalisation de la figure 1A, l’e-compresseur 2a délivre un flux d’air qui transite, via une vanne trois voies 20 montée sur un piquage situé entre ce compresseur 2a et le moteur M, vers une conduite d’air 21 raccordée aux moyens de chauffage C de l’échappement catalytique E. Dans ce cas, la turbine 1 est inactive puisque le moteur thermique est coupé.As in the first embodiment of FIG. 1A, the e-compressor 2a delivers a flow of air which passes, via a three-way valve 20 mounted on a connection located between this compressor 2a and the motor M, towards a pipe air 21 connected to the heating means C of the catalytic exhaust E. In this case, the turbine 1 is inactive since the combustion engine is switched off.

Selon encore un autre mode de réalisation du dispositif de l’invention illustré par la figure 1C, et en fonction de la structure de la motorisation M ou du type de véhicule hybride, la boucle comprenant la turbine 1 et le compresseur 2 est désactivée et remplacée par un e-compresseur 3 entraîné par un moteur électrique 31 alimenté par la batterie standard.According to yet another embodiment of the device of the invention illustrated by FIG. 1C, and depending on the structure of the engine M or the type of hybrid vehicle, the loop comprising the turbine 1 and the compressor 2 is deactivated and replaced by an e-compressor 3 driven by an electric motor 31 powered by the standard battery.

Dans ce cas, le dispositif de l’invention comprend deux compresseurs, respectivement, un premier compresseur 2 toujours couplé à une turbine 1 mais qui sont tous deux inactifs lorsque le moteur thermique est coupé et un second compresseur (e-compresseur) 3 disposé en amont du premier compresseur, c’est-à-dire au plus près de la prise d’air 30, comme illustré par la figure 1C.In this case, the device of the invention comprises two compressors, respectively, a first compressor 2 always coupled to a turbine 1 but which are both inactive when the heat engine is switched off and a second compressor (e-compressor) 3 arranged in upstream of the first compressor, that is to say as close as possible to the air intake 30, as illustrated by FIG. 1C.

Le dispositif comprend alors une vanne trois voies 32 montée sur un piquage situé entre le premier compresseur 2 et le second compresseur 3 et raccordée, via la conduite 21, aux moyens de chauffage C de l’échappement catalytique E.The device then comprises a three-way valve 32 mounted on a connection located between the first compressor 2 and the second compressor 3 and connected, via line 21, to the heating means C of the catalytic exhaust E.

Le procédé de conditionnement thermique selon l’invention consiste à alimenter électriquement avec la batterie standard, d’une part, la turbine 1 ou l’un des e-compresseurs 2a, 3 et, d’autre part, les moyens de chauffage C de l’échappement catalytique E pour produire un flux d’air chaud que l’on envoie vers la batterie B à haut voltage afin de la réchauffer. Ce chauffage est effectué jusqu’à ce que la température TB de la batterie B atteigne sa température minimale d’activation TBmin (figure 2) qui lui permet d’alimenter efficacement la motorisation électrique.The thermal conditioning method according to the invention consists in powering electrically with the standard battery, on the one hand, the turbine 1 or one of the e-compressors 2a, 3 and, on the other hand, the heating means C of the catalytic exhaust E to produce a flow of hot air which is sent to the high voltage battery B in order to heat it. This heating is carried out until the temperature TB of battery B reaches its minimum activation temperature TBmin (figure 2) which allows it to efficiently supply the electric motor.

Les graphes de la figure 2 illustrent les variations de la température TB de la batterie B à haut voltage en fonction de l’activation (On/Off) de la boucle à alimentation électrique comprenant l’e-turbine 1/compresseur 2 ou l’e-compresseur 2a, 3 alimentant en air les moyens de chauffage C jusqu’à l’atteinte de sa température minimum (TBmin) de fonctionnement.The graphs in FIG. 2 illustrate the variations in the temperature TB of the high-voltage battery B as a function of the activation (On/Off) of the electrically powered loop comprising the e-turbine 1/compressor 2 or the e-compressor 2a, 3 supplying the heating means C with air until its minimum operating temperature (TBmin) is reached.

Claims (8)

Dispositif de conditionnement thermique d’une batterie (B) à haut voltage pour le démarrage à froid du moteur électrique d’un véhicule hybride, ledit véhicule étant équipé d’un moteur thermique, d’une turbine (1), d’au moins un compresseur (2, 2a, 3), d’un échappement catalytique (E) pourvu de moyens de chauffage (C) et d’une batterie standard, caractérisé en ce que ledit compresseur est actionné électriquement au moyen de ladite batterie standard et est associé à une vanne trois voies (20) montée sur un piquage situé entre ledit compresseur (2, 2a, 3) et le moteur (M) et raccordée via une conduite d’air (21) aux moyens de chauffage (C) de l’échappement catalytique (E) qui sont eux-mêmes raccordés, via une conduite (22), à un échangeur thermique (10) destiné à réchauffer la batterie (B) à haut voltage.Device for thermal conditioning of a high voltage battery (B) for cold starting the electric motor of a hybrid vehicle, said vehicle being equipped with a heat engine, a turbine (1), at least a compressor (2, 2a, 3), a catalytic exhaust (E) provided with heating means (C) and a standard battery, characterized in that said compressor is actuated electrically by means of said standard battery and is associated with a three-way valve (20) mounted on a connection located between said compressor (2, 2a, 3) and the motor (M) and connected via an air pipe (21) to the heating means (C) of the catalytic exhaust (E) which are themselves connected, via a pipe (22), to a heat exchanger (10) intended to heat the high voltage battery (B). Dispositif selon la revendication 1, caractérisé en ce que ledit compresseur (2) est entraîné par la turbine (1) qui est elle-même entraînée par un moteur électrique alimenté par ladite batterie standard.Device according to Claim 1, characterized in that the said compressor (2) is driven by the turbine (1) which is itself driven by an electric motor powered by the said standard battery. Dispositif selon la revendication 1, caractérisé en ce que ledit compresseur (2a) est directement entraîné par un moteur électrique (23) alimenté par ladite batterie standard.Device according to claim 1, characterized in that said compressor (2a) is directly driven by an electric motor (23) powered by said standard battery. Dispositif selon la revendication 1, caractérisé en ce qu’il comprend un second compresseur (3) disposé en amont du premier compresseur (2) et entraîné par un moteur électrique (31) alimenté par ladite batterie standard.Device according to Claim 1, characterized in that it comprises a second compressor (3) arranged upstream of the first compressor (2) and driven by an electric motor (31) powered by said standard battery. Dispositif selon la revendication précédente, caractérisé en ce que ladite vanne trois voies (32) est montée sur un piquage situé entre le premier compresseur (2) et le second compresseur (3).Device according to the preceding claim, characterized in that the said three-way valve (32) is mounted on a connection located between the first compressor (2) and the second compressor (3). Dispositif selon l’une des revendications précédentes, caractérisé en ce que ledit échangeur thermique (10) est pourvu d’un capteur (11) de température, couplé à des moyens d’asservissement du compresseur (2, 2a, 3) et/ou des moyens de chauffage (C) de l’échappement catalytique (E).Device according to one of the preceding claims, characterized in that the said heat exchanger (10) is provided with a temperature sensor (11), coupled to means for controlling the compressor (2, 2a, 3) and/or heating means (C) of the catalytic exhaust (E). Procédé de conditionnement thermique d’une batterie (B) à haut voltage de véhicule hybride en vue d’un démarrage à froid du moteur électrique au moyen du dispositif selon l’une des revendications précédentes, caractérisé en ce qu’on alimente électriquement avec la batterie standard, d’une part, la turbine (1) ou l’un des compresseurs (2, 3) et, d’autre part, les moyens de chauffage (C) de l’échappement catalytique (E) pour produire un flux d’air chaud que l’on envoie vers la batterie (B) à haut voltage afin de la réchauffer jusqu’à ce que sa température atteigne sa température minimale d’activation.Process for thermal conditioning of a high-voltage battery (B) of a hybrid vehicle with a view to cold starting of the electric motor by means of the device according to one of the preceding claims, characterized in that electrical power is supplied with the standard battery, on the one hand, the turbine (1) or one of the compressors (2, 3) and, on the other hand, the heating means (C) of the catalytic exhaust (E) to produce a flow hot air which is sent to the high voltage battery (B) in order to heat it until its temperature reaches its minimum activation temperature. Véhicule hybride équipé d’un dispositif de conditionnement thermique selon l’une des revendications 1 à 6.Hybrid vehicle fitted with a thermal conditioning device according to one of Claims 1 to 6.
FR1910405A 2019-09-20 2019-09-20 High voltage battery thermal conditioning device for hybrid vehicles Active FR3101030B1 (en)

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PCT/FR2020/051374 WO2021053278A1 (en) 2019-09-20 2020-07-27 Device for thermal conditioning of high-voltage batteries for hybrid vehicles

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FR2911220A1 (en) * 2007-01-08 2008-07-11 Peugeot Citroen Automobiles Sa Battery e.g. high voltage electric power supply battery, heating device for hybrid vehicle, has equipment connected on exhaust line to provide heat to battery, and pump permitting flow of coolant in heater circuit when engine is stopped
WO2008095129A2 (en) * 2007-01-31 2008-08-07 Turbodyne Technologies, Inc. Generation and management of mass air flow
US10005450B2 (en) 2014-03-18 2018-06-26 Toyota Jidosha Kabushiki Kaisha Hybrid vehicle and method of controlling the same
DE102018111259A1 (en) * 2017-05-16 2018-11-22 Ford Global Technologies, Llc Pre-conditioning for a hybrid electric vehicle

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US8326911B2 (en) 2007-02-02 2012-12-04 Microsoft Corporation Request processing with mapping and repeatable processes

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6575258B1 (en) * 1999-12-21 2003-06-10 Steven Lynn Clemmer Electric current and controlled heat co-generation system for a hybrid electric vehicle
FR2911220A1 (en) * 2007-01-08 2008-07-11 Peugeot Citroen Automobiles Sa Battery e.g. high voltage electric power supply battery, heating device for hybrid vehicle, has equipment connected on exhaust line to provide heat to battery, and pump permitting flow of coolant in heater circuit when engine is stopped
WO2008095129A2 (en) * 2007-01-31 2008-08-07 Turbodyne Technologies, Inc. Generation and management of mass air flow
US10005450B2 (en) 2014-03-18 2018-06-26 Toyota Jidosha Kabushiki Kaisha Hybrid vehicle and method of controlling the same
DE102018111259A1 (en) * 2017-05-16 2018-11-22 Ford Global Technologies, Llc Pre-conditioning for a hybrid electric vehicle

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