WO2022112145A1 - Dispositif d'alimentation d'un moteur électrique de véhicule automobile - Google Patents
Dispositif d'alimentation d'un moteur électrique de véhicule automobile Download PDFInfo
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- WO2022112145A1 WO2022112145A1 PCT/EP2021/082411 EP2021082411W WO2022112145A1 WO 2022112145 A1 WO2022112145 A1 WO 2022112145A1 EP 2021082411 W EP2021082411 W EP 2021082411W WO 2022112145 A1 WO2022112145 A1 WO 2022112145A1
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- Prior art keywords
- energy source
- power
- electrical power
- source
- value
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- 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.)
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Classifications
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- 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
- B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
-
- 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
- B60L50/75—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
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- 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
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
- B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
- B60L58/33—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
-
- 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
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Definitions
- the present invention relates to the field of electric or hybrid motor vehicles. More particularly, the invention relates to power supply devices intended to supply appropriate electrical power to the engine of these motor vehicles.
- the electric motor receives the electrical power necessary for its operation, in particular from a main battery.
- One of the issues in the development of electric vehicles is the vehicle's range of travel.
- One solution envisaged to extend this autonomy is to associate an additional source of energy with the main battery, and it is in particular envisaged to associate a fuel cell system with the main battery.
- the electric motor can thus be powered first by the main battery and, if necessary, by the fuel cell, when the charge of the main battery is insufficient to continue to do so, in order to increase the autonomy of the vehicle when the battery is completely discharged.
- the fuel cell and the main battery are arranged parallel to each other to allow separate power supplies from the electric motor depending on the case of use, the electric motor being able to be powered simultaneously by the first power source formed by the main battery and the second power source formed by the fuel cell system.
- the fuel cell can therefore directly supply the electric motor, by supplementing the main battery and can also, if necessary participate in recharging the battery while the vehicle is in motion.
- the fuel cell system forms a range extender and is likely to be used to supply electrical energy to the engine of the vehicle
- the production of electrical energy by the fuel cell is accompanied by a significant rise in temperature of the latter.
- the fuel cell is thus associated with a cooling system which is specific to it and which aims to evacuate the calories by exchange with outside air, via a heat exchanger arranged on the front face of the vehicle for example.
- manufacturers may be forced to oversize the heat exchanger to ensure that there are no fuel cell cooling problems, especially when outside temperatures are high.
- the present invention falls within this context of fuel cell systems used as a range extender and the problem of cooling these systems, and it proposes an electrical power supply device for a motor vehicle electric motor, comprising at least one first energy source, at least one second energy source, and a control module making it possible to control, on the one hand, the first energy source to supply a first electric power and, on the other hand, the second source energy to provide a second electrical power.
- the electrical power supply device is characterized in that the control module comprises a memory module in which is stored a maximum operating power value that can be supplied by the second energy source, this value of maximum operating power being a function of the cooling capacity of the second energy source.
- the power supply device that is the subject of the invention falls within the context of the use of a second energy source making it possible to form an extension of autonomy, namely that this second source, and for example a generator of the fuel cell type, is on board the electric vehicle, being intended to increase the autonomy of the latter by ensuring the recharging of the first source and/or by powering the electric motor directly.
- the power supply device is particular in that it makes it possible to ensure that the use of the second energy source, as a range extender, takes place under conditions which do not risk lead to overheating of this second source of energy, without however needing to oversize a cooling system associated with this second source.
- the power supply device is characterized in that the control module is configured for:
- the sum of the values of the first electric power and of the second electric power is equal to a target electric power intended for supplying the electric motor.
- these two sources together generate a constant value corresponding to all or part of the electric power supplied to the electric motor.
- the reduction in the electric power supplied by the first energy source is then accompanied by an increase in the electric power supplied by the second energy source in an equivalent proportion, so that the electric power supplied to the electric motor by the power supply device according to the invention remains at a constant value.
- the first energy source comprises at least one electric battery.
- This battery is capable of directly powering the electric motor of the vehicle when it is sufficiently charged.
- This battery can in particular be configured to be recharged by an external energy source and/or by the second energy source.
- the external energy source is a source of energy necessary for recharging the main battery and located outside the vehicle and it may for example consist of direct current from a supercharger or alternating current from a power outlet. current of a dwelling.
- the second energy source comprises at least one fuel cell.
- This fuel cell is capable of directly powering the electric motor of the vehicle, alternately or simultaneously with the first source of energy.
- This fuel cell can in particular be configured to be able to recharge the first energy source.
- the fuel cell system comprises, in addition to the fuel cell, a hydrogen tank and an air supply system.
- the fuel cell system comprises a fuel cell cooling system, with in particular a heat exchanger capable of exchanging calories with a cooling fluid, for example air outside the vehicle.
- the electrical power supply device can comprise at least one temperature sensor.
- the control module can be configured to compare the detected temperature with a temperature threshold value, and to modify the control of the energy sources when the detected temperature exceeds the threshold value.
- the operation of the power supply device electrical in this case where the share of electrical power generated by the second source is reduced, continues to favor a supply of the electric motor both by the first energy source and by the second energy source, in order to prolong despite everything , in lesser proportions but in an effective way all the same, the autonomy of the vehicle.
- the value of the maximum operating power that can be supplied by the second energy source is variable as a function of the detected temperature.
- the temperature detected by the temperature sensor may in particular be the outside temperature of the vehicle, but it should be noted that without departing from the context of the invention, the invention could consider an internal temperature of the vehicle, and for example close to the Fuel cell.
- the invention also relates to a motor vehicle comprising an electric motor and an electric power supply device as just mentioned.
- the invention also relates to a method for supplying an electric power requested by an electric power supply device of an electric motor as has just been mentioned above, the method comprising at least one step of comparison of the detected temperature with a temperature threshold value, a step of comparing the second electrical power demanded from the second energy source and the maximum operating power that can be supplied by the second energy source, when the detected temperature is greater than the temperature threshold value, and a step of decreasing the second electrical power demanded from the second source to a value equal or substantially equal to the maximum operating power that can be supplied by the second energy source, when the second electrical power demanded from the second energy source exceeds the maximum operating power that can be supplied by the second e source of energy.
- the method may further comprise a step of adjusting the electrical power requested from the first energy source, so that the sum of the first electrical power requested from the first source and of the second electrical power requested from the second source remains equal to a target electric power intended for supplying the electric motor of the vehicle.
- the electrical power requested from the second energy source remains unchanged when the electrical power requested from the second energy source is less than the maximum operating power that can be supplied by the second energy source and/or when the detected temperature is lower than the temperature threshold value.
- FIG. 1 is a partial schematic view of an electric vehicle equipped with a power supply device according to the invention, capable of implementing the method according to the invention;
- FIG. 2 is a flowchart representing the different steps of an embodiment of the method according to the invention.
- FIG. 3 is a flowchart similar to that of Figure 2 illustrating the different steps of an alternative embodiment of the method according to the invention
- FIG. 4 is a diagram illustrating a characteristic of the invention according to which at a given instant two electrical power sources of an electric motor are controlled to modify the power they provide respectively while maintaining a power constant target.
- the electric vehicle 1, schematically illustrated in FIG. 1, comprises an electric motor 3 connected to at least one set of wheels 5 of the electric vehicle 1, the connection between the electric motor 3 and the set(s) of wheels allowing traction and/or vehicle propulsion.
- the electric motor 3 is electrically powered via an electrical power supply device 6.
- the electric vehicle 1 thus has an architecture in which the wheel set 5, the electric motor 3 and the power supply device 6 are arranged in series, the electrical energy produced by the power supply device 6 serving to power the electric motor for that it has the power necessary to drive the wheel set 5.
- the current supplied by the electric power supply device 6 is a direct current which is converted by a first converter 9 into an alternating current suitable for the electric motor 3 .
- the electrical power supply device 6 is specific in that it comprises at least two energy sources in parallel, respectively capable of supplying all or part of the electrical power desired for the motor 3.
- the electrical power supply device 6 comprises in particular a first energy source 7, here taking at least the form of a main battery 8, which is capable of supplying a first electrical power PI according to the instruction of control given to it, and a second energy source 31, here taking at least the form of a fuel cell 33, which is capable of supplying a second electric power P2 according to the control instruction given to it given.
- the main battery 8 is capable of keeping a quantity of electrical energy in reserve in order to supply it to the electric motor 3 when the need arises.
- the main battery 8 is for example a lithium ion battery.
- the first energy source 7 here further comprises a service battery 11 for the operation of accessories 15, for example light devices, and/or computers 17 of the electric vehicle 1 and/or a heating device 61 of a passenger compartment of the electric vehicle 1.
- the service battery 11 can in particular be recharged by the main battery 8 by converting the high voltage direct current, for example 330 V, from the main battery 8 into a low voltage direct current, for example 14V, thanks to a second converter 13.
- the main battery 8 can be recharged by an external energy source 21, 23.
- An external energy source 21, 23 can be an alternating current coming from a household socket 21 which must be rectified. thanks to a third converter 25 internal to the electric car 1.
- An external energy source 21, 23 can also be a direct current from a supercharger 23 which does not require passing through a converter.
- the electrical power supply device 6 comprises the first energy source and a second energy source 31 in parallel, playing the role of a range extender 31, capable here of recharging the main battery. 8 and also to participate in the electrical supply of the electric motor instead of or in addition to the main battery 8.
- the second energy source 31 comprises a fuel cell system 33, a compressor 37, at least one reservoir of a reducing fuel 39 and a cooling system 41.
- the fuel cell 33 is able to generate an electrical power P2 by oxidation between the oxygen present in the air and provided by the compressor 37 and the reducing fuel, for example hydrogen, contained in the tanks 39.
- the electrical power P2 is then transformed by means of an inverter 35 to be able to be directed towards the electric motor. If necessary, this electrical power P2 can also be used to recharge the main battery 8 of the electric vehicle 1.
- the cooling system 41 comprises a cooling liquid which circulates in a loop in a pipe 43 which carries the cooling liquid between the fuel cell system 33 and a heat exchanger 47.
- the circulation of the refrigerant fluid in the cooling system 41 is regulated by a pump 45.
- the heat exchanger 47 allows the refrigerant fluid to discharge its calories by exchange with the air outside the electric vehicle 1.
- the quantity of calories which can be discharged by the refrigerant fluid, and therefore the cooling capacity of the fuel cell associated with this cooling system is a function of the dimensioning of this heat exchanger and the configuration of the area of the vehicle in which this heat exchanger is positioned.
- the cooling capacity of the fuel cell can vary according to the surface area of the exchange zone provided by the heat exchanger and/or the size of the grille on the front face of the vehicle. which lets in the air likely to pass through this exchange zone.
- the electrical energy supply device 6 comprises at least one control module 51 which is configured in particular to control the supply of each of the energy sources 7, 31 and to determine the electrical power supply by each source. of energy in order to optimize the solicitation of each source according to their autonomy, in particular to obtain a target electric power P, that is to say the electric power necessary for the electric motor 3 so that it can drive the train of wheels 5 under the conditions desired by the driver or the vehicle electronics.
- a target electric power P that is to say the electric power necessary for the electric motor 3 so that it can drive the train of wheels 5 under the conditions desired by the driver or the vehicle electronics.
- control module 51 is configured to receive, or to calculate itself, an evaluation of the needs of the electric motor in electric power to respond to the driver's demands in traction/propulsion of the vehicle, for example according to the position of the accelerator pedal.
- the control module 51 associated with the power supply device comprises a plurality of sensors not shown here, and among which for example a sensor of the level of charge of the main battery or a sensor of the operating state of the extender autonomy.
- the control module 51 is in particular configured to take account of these qualitative or quantitative data to determine a distribution of the contributions of the first energy source 7 and of the second energy source 31 to generate the target electrical power P.
- the control module for example if the main battery 8 is fully charged and without this being limiting of the invention, controls the first energy source 7 and the second energy source 31 so that the main battery 8 generates all of the target electric power P.
- control module for example if the main battery 8 is discharged and without this being limiting of the invention, controls the first energy source 7 and the second energy source 31 so that the fuel cell 33 generates all of the target electrical power P.
- the control module drives the first energy source 7 and the second energy source 31 so that each of the sources participates, according to a distribution defined by the control module 51, in generating the power electric target.
- the sum of the values of the first electric power PI that is to say the electric power generated by the first electric source 7 of the power supply device 6 and of the second electric power P2, that is to say the electric power generated by the second electric source 31 of the power supply device 6, is equal to the value of the target electric power P intended to the power supply of the electric motor 3.
- a maximum operating electrical power of the second energy source is loaded into the memory of the control module 51.
- This maximum operating power P max is a function of the cooling capacity of the second energy source, in particular here of the fuel cell 33, by the associated cooling system 41 .
- the memory of the control module 51 can thus be loaded with a single maximum operating power value P max , it being understood that this value can vary from one vehicle to another depending on the size of the cooling system associated with the second source of energy.
- the memory of the control module 51 may consist of a data table in which the maximum operating power P max is associated with a temperature, to take account of the cooling performance. variable depending on the temperature of the environment in which the cooling system 41 is immersed.
- this maximum operating power P max is specific to the invention in that the electrical power supply device 6 is capable of taking several configurations for controlling the energy sources 7, 31 depending on whether or not this maximum electrical power is exceeded by the initial operation of the fuel cell. More particularly, the electric power supply device 6 of a motor vehicle electric motor is configured to compare the value of the second electric power P2 with the value of the maximum operating power P max that can be supplied by the second power source.
- the trigger threshold value may be the temperature.
- the electrical power supply device 6 comprises a temperature sensor 52 and the control module 51 is configured to recover a temperature value T ext detected by this sensor. It should be noted that without departing from the context of the invention, the control module could be configured to retrieve a temperature value from a temperature sensor also onboard the vehicle for other purposes and not specifically dedicated to the device. power supply.
- the temperature sensor is configured to detect the temperature outside the vehicle, it being understood that the temperature detected by the sensor could be a temperature of the fuel cell or of another component of the second source of energy.
- the temperature value T ext detected by the temperature sensor 52 can in particular be used in the first case of application, with the maximum power P max equal to a single value, independent of the temperature. It will be understood that when the detected temperature T ext is low, the thermal integration of the fuel cell system makes it possible to meet the cooling needs of the fuel cell system. Indeed, in this case, with the defined dimensioning of the heat exchanger forming part of the cooling system and arranged in particular on the front face of the vehicle, the high temperature difference between the operating temperature of the fuel cell system and the temperature detected enables efficient cooling of the fuel cell system.
- the power supply device 6 is configured to allow a method of supplying an electrical power allowing the case appropriate to modify a first configuration Cfgl of the energy sources, if this involves delicate conditions for cooling the second energy source 31 and in particular the fuel cell 33 capable of equipping this second source.
- the method according to the first embodiment 100 can be initiated by a request for electric power 101 from the electric motor.
- This request can be sent in the direction of the control module 51, or else the control module is configured to retrieve operating data from the vehicle, for example a request for acceleration by the driver, to generate this request.
- This request is analyzed by the control module 51 to define during a calculation step 110 a first control configuration Cfgl in which operating instructions are generated for each of the energy sources 7, 31.
- a target electrical power P that is to say an overall electrical power value intended for the electric motor power supply.
- this target electric power P is equal to 100% of the electric power supplied to the electric motor, without this being limiting of the invention, since the quantity of power supplied by the two sources of energy remain constant when switching from one control configuration mode to another.
- the supply method according to the invention comprises a modification phase control of energy sources.
- the phase for modifying the control of the energy sources begins with a step 120 of comparing electrical power, between the power requested from the second energy source 31 in the first control configuration Cfgl and the maximum operating power P max .
- the control module 51 recovers the maximum operating power value P max in the memory provided for this purpose and considers the electrical power requested from the second energy source 31 in the first control configuration Cfgl.
- the datum recovered as maximum operating power value P max can be a function of the temperature, it being considered that the detected temperature T ext or the temperature released by the fuel cell system can impact the cooling function.
- an ambient temperature T ext or a temperature of the environment close to the cooling system, can be retrieved by the control module 51 to retrieve from the database, and in this case from a data table, a maximum power value adjusted to the detected temperature.
- the control module 51 Conversely, if the electrical power value P2 requested from the second energy source in the first control configuration is greater than the value of the maximum operating power P max , the control module 51 generates a modification of the control instructions energy sources 7, 31 to modify their electrical power supply without penalizing the supply of the electric motor 3. More specifically, the control module sends an instruction 130 to reduce the electrical power requested from the second energy source 31, so that this second electrical power P2 is reduced to the level of the maximum operating power value P max . Thus, it is ensured that the cooling will be correctly carried out during operation of the fuel cell system and that it will be able to operate correctly.
- control module sends, in an adjustment step 140, an instruction to increase the electrical power requested from the first energy source to maintain the target electrical power.
- the method thus provides for a step of adjusting the electrical power P1 requested from the first energy source 7 as a function of the modification which has been made to the electrical power P2 requested from the second energy source 31, in order to maintain the target electrical power P.
- control module 51 modifies the control instructions given to the two energy sources so that they are controlled according to a second control configuration Cfg2 distinct from the first control configuration Cfgl, but with a value of electric power delivered to the motor by the power supply device which remains unchanged, this value of electric power delivered to the motor by the power supply device being equal to the sum of the values of the first electric power PI, that is to say i.e. the electrical power generated by the first electrical source 7 of the power supply device 6 and the second electrical power P2, that is to say the electrical power generated by the second electrical source 31 of the power supply device 6.
- FIG. 3 illustrates a second embodiment of the method according to the invention, which differs from what has been previously described in that the step of comparing the electrical power requested with the maximum operating power P max is initiated as a function of a temperature detected by a temperature sensor.
- This second embodiment 200 thus comprises, after the step 110 of calculating the first control configuration in accordance with what has been previously described, a step 210 of comparing the detected temperature T ext with a temperature threshold value T max , the result of this step possibly resulting in maintaining the first control configuration Cfg1 or in the beginning of a phase for modifying the control of the sources in accordance with what has been described previously to obtain a second control configuration Cfg2.
- the temperature threshold value T max can be retrieved by the control module 51 from an appropriate memory, during a data recovery step 215.
- the power comparison performed by the control module 51 as it may have been mentioned previously remains the same but is only performed in this second embodiment when the detected temperature T ext exceeds a temperature threshold value T max .
- a temperature value can be detected and the power supply device 6 can for this purpose comprise a temperature sensor 52, it being understood however that the value of temperature could also be recovered in the vehicle's management electronics.
- the temperature considered here may in particular be the ambient temperature, outside the vehicle, or else be the temperature of the area of the underbody of the vehicle in which the fuel cell system is mainly arranged.
- the maximum operating power P max recovered in the 'data recovery step 115, is here independent of the detected temperature.
- this second embodiment of the supply method has a purpose similar to that of the first embodiment, with the obtaining of a second control configuration Cfg2, distinct from the first configuration control Cfgl, when a detected value is greater than an operating threshold value.
- FIG. 4 the transition from one control configuration to another has been illustrated, in particular in the case where the method for supplying electrical power takes account of the exceeding of a temperature threshold value to initiate the modification of the configurations control, to illustrate the fact that the sum of the electrical power values respectively supplied by the first and the second energy source remains the same in the first configuration and in the second configuration.
- the first energy source is controlled so as to generate a first electric power Pli and the second energy source is controlled so as to generate a second electric power P21.
- the value of the first electric power Pli and the value of the second electric power P21 are such that their sum is equal to the value P of the electric power delivered by the supply device 6 to the electric motor 3.
- the second energy source is controlled so as to bring the electrical power generated to a value equal to the maximum operating power Pmax.
- the first energy source is controlled so as to generate a first electrical power P12 of a value greater than that of the first electrical power Pli of the first configuration, so as to compensate for the reduction in power generated by the second control configuration of the second energy source.
- the value of the first electrical power P12 and the value of the second electrical power are such that their sum is equal to the value P of the power electric delivered by the supply device 6 to the electric motor 3.
- the invention achieves the object it had set itself, and makes it possible to propose a method for supplying electrical energy to an electric vehicle motor making it possible to optimize the operation two energy sources capable of electrically supplying an electric motor in parallel.
- this invention makes it possible to extend the autonomy of a motor vehicle without penalizing the electric power necessary to be delivered to the electric motor so that the latter can provide the performance desired by the driver of the vehicle, and without risking creating a malfunction of the additional energy source forming a range extender.
- the invention is not limited to the examples which have just been described and many adjustments can be made to these examples without departing from the scope of the invention.
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
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- Power Engineering (AREA)
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- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21819092.4A EP4251459A1 (fr) | 2020-11-25 | 2021-11-22 | Dispositif d'alimentation d'un moteur électrique de véhicule automobile |
| US18/253,473 US12479335B2 (en) | 2020-11-25 | 2021-11-22 | Device for powering an electric motor of a motor vehicle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2012152A FR3116654A1 (fr) | 2020-11-25 | 2020-11-25 | Dispositif d’alimentation d’un moteur électrique de véhicule automobile |
| FRFR2012152 | 2020-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022112145A1 true WO2022112145A1 (fr) | 2022-06-02 |
Family
ID=74125522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2021/082411 Ceased WO2022112145A1 (fr) | 2020-11-25 | 2021-11-22 | Dispositif d'alimentation d'un moteur électrique de véhicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12479335B2 (fr) |
| EP (1) | EP4251459A1 (fr) |
| FR (1) | FR3116654A1 (fr) |
| WO (1) | WO2022112145A1 (fr) |
Citations (5)
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|---|---|---|---|---|
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| WO2007123222A1 (fr) * | 2006-04-24 | 2007-11-01 | Toyota Jidosha Kabushiki Kaisha | Système d'alimentation en puissance et véhicule |
| US20140342260A1 (en) * | 2011-12-06 | 2014-11-20 | Toyota Jidosha Kabushiki Kaisha | Fuel cell vehicle air-conditioning apparatus and control method thereof |
| DE102015011274A1 (de) | 2015-08-27 | 2016-03-03 | Daimler Ag | Verfahren zum Betreiben eines Brennstoffzellenfahrzeugs und Brennstoffzellenfahrzeug |
| FR3055116A1 (fr) * | 2016-08-17 | 2018-02-23 | Symbiofcell | Architecture de dispositif d'alimentation pour vehicule electrique a redondance de piles a combustible et de batteries |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8543270B2 (en) * | 2010-08-10 | 2013-09-24 | Tesla Motors, Inc. | Efficient dual source battery pack system for an electric vehicle |
-
2020
- 2020-11-25 FR FR2012152A patent/FR3116654A1/fr active Pending
-
2021
- 2021-11-22 US US18/253,473 patent/US12479335B2/en active Active
- 2021-11-22 EP EP21819092.4A patent/EP4251459A1/fr active Pending
- 2021-11-22 WO PCT/EP2021/082411 patent/WO2022112145A1/fr not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070126404A1 (en) * | 2005-12-02 | 2007-06-07 | Panasonic Ev Energy Co., Ltd. | Device and method for controlling output from a rechargeable battery |
| WO2007123222A1 (fr) * | 2006-04-24 | 2007-11-01 | Toyota Jidosha Kabushiki Kaisha | Système d'alimentation en puissance et véhicule |
| US20140342260A1 (en) * | 2011-12-06 | 2014-11-20 | Toyota Jidosha Kabushiki Kaisha | Fuel cell vehicle air-conditioning apparatus and control method thereof |
| DE102015011274A1 (de) | 2015-08-27 | 2016-03-03 | Daimler Ag | Verfahren zum Betreiben eines Brennstoffzellenfahrzeugs und Brennstoffzellenfahrzeug |
| FR3055116A1 (fr) * | 2016-08-17 | 2018-02-23 | Symbiofcell | Architecture de dispositif d'alimentation pour vehicule electrique a redondance de piles a combustible et de batteries |
Also Published As
| Publication number | Publication date |
|---|---|
| US12479335B2 (en) | 2025-11-25 |
| FR3116654A1 (fr) | 2022-05-27 |
| US20240001808A1 (en) | 2024-01-04 |
| EP4251459A1 (fr) | 2023-10-04 |
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