EP4452681A1 - Dispositif de gestion d'un groupe motopropulseur de véhicule hybride - Google Patents
Dispositif de gestion d'un groupe motopropulseur de véhicule hybrideInfo
- Publication number
- EP4452681A1 EP4452681A1 EP22834957.7A EP22834957A EP4452681A1 EP 4452681 A1 EP4452681 A1 EP 4452681A1 EP 22834957 A EP22834957 A EP 22834957A EP 4452681 A1 EP4452681 A1 EP 4452681A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- management module
- powertrain
- map
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/442—Series-parallel switching type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W30/18—Propelling the vehicle
- B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
- B60W30/1882—Controlling power parameters of the driveline, e.g. determining the required power characterised by the working point of the engine, e.g. by using engine output chart
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
- B60W40/076—Slope angle of the road
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
- B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0019—Control system elements or transfer functions
- B60W2050/0026—Lookup tables or parameter maps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60W2420/54—Audio sensitive means, e.g. ultrasound
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/10—Change speed gearings
- B60W2510/1005—Transmission ratio engaged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/30—Wheel torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
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- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/081—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/92—Hybrid vehicles
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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
- Y02T10/62—Hybrid vehicles
Definitions
- the present invention relates to the field of energy management within a hybrid motor vehicle, and relates more particularly to a device for managing a powertrain of a hybrid vehicle and to the acoustic issues associated with the use of this hybrid vehicle.
- a hybrid vehicle comprises a powertrain with two distinct motorization assemblies, among which an electric motorization assembly, in particular associated with an electrical energy storage element, and a thermal motorization assembly, each of these motorization assemblies being able to be connected to a wheel set of the vehicle for driving the latter.
- the thermal motorization assembly can in particular be called upon, when the state of charge level of the battery is low, to allow at least the recharging of the electrical energy storage element and, if necessary, allow the driving of the vehicle.
- the electrification of the vehicle's powertrain aims in particular to reduce CO2 emissions and to reduce the fuel consumption of the internal combustion engine, but also makes it possible to improve other services such as driving pleasure.
- the vehicle comprises a traction chain management device which takes into account the database of the operation of the internal combustion engine relating to consumption, pollution control and driving pleasure in order to optimize the operation of the powertrain at any time.
- the traction chain management device is in particular configured to choose, according to the databases associated with consumption, pollution control and driving pleasure, to distribute the torque requested between the thermal engine assembly and the electric motorization assembly, by choosing the appropriate gear ratio.
- Such operation may involve a decorrelation of the behavior of the combustion engine with respect to the torque at the wheel, or in other words an inconsistency between the feeling that the customer has of the speed or acceleration of the vehicle and the operation of the generating set. powertrain resulting in the noise level of the heat engine.
- the control unit can choose low gearbox ratios which involve a high speed and generate a problem of inconsistency when the demand for acceleration and/or the speed of the vehicle is low, and therefore the noise of the thermal engine does not correspond to the feeling of the driver with respect to the speed and the vehicle acceleration.
- the present invention falls within this context by proposing a device for managing a hybrid vehicle powertrain, comprising a control unit configured to define an operating parameter of the powertrain as a function of instantaneous input data associated with said vehicle , the control unit comprising at least one consumption management module in which is implemented at least one database of the heat engine conditioning the operating parameters of the powertrain to compliance with consumption values of the vehicle.
- the control unit also comprises an acoustics management module in which is implemented at least one map of the thermal engine conditioning the operating parameters of the powertrain to compliance with determined acoustic criteria, the unit control being configured to define an operating parameter of the powertrain by considering cumulatively the data from the map of the acoustics management module and the data from the database of the consumption management module.
- constraints are injected into the control software of the control unit to be respected for the definition of the operating parameters of the powertrain which are sized to limit the acoustic inconsistencies.
- An operating parameter of the powertrain can in particular be a torque of the heat engine and/or a ratio value of a gearbox of the powertrain when the heat engine is engaged on a wheel set of the hybrid vehicle.
- control unit is configured to consider the data from the mapping of the acoustics management module in addition to the data from the database of the consumption management module according to the state of charge of an electrical energy storage element.
- the acoustics intervene on the operating parameters of the powertrain according to the state of charge of the battery of the vehicle which is intended in the hybrid vehicle to supply the electric motor.
- the control unit is configured to consider the data from the mapping of the acoustics management module in addition to the data from the database of the consumption management module when the state charge of the battery is both lower than a first threshold value, and higher than a second threshold value which is strictly lower than the first threshold value. Above this first threshold value, the control unit prioritizes driving in electric mode and the decrease in the battery charge level.
- the acoustics management module is not strictly speaking deactivated, but it does not intervene because the battery does not need to be charged.
- the acoustics management module comprises at least one map corresponding to the operation of the heat engine in parallel hybridization, and at least one map corresponding to the operation of the heat engine in series hybridization.
- the at least one map corresponding to the operation of the thermal engine in parallel hybridization indicates a minimum gearbox ratio to be observed as a function of the speed and the acceleration of the vehicle.
- a map corresponding to the operation of the heat engine in series hybridization indicates a maximum speed of the heat engine not to be exceeded, depending on the speed of the vehicle and the torque at the wheels of the vehicle and another corresponding map to the operation of the heat engine in series hybridization indicates a maximum torque of the heat engine to be observed, depending on the speed of the vehicle and the torque at the wheels of the vehicle.
- the acoustics management module comprises two distinct maps implemented selectively according to the state of charge of the electrical energy storage element with respect to an intermediate threshold value, with an operating map standard for a state of charge of the electrical energy storage element greater than the intermediate threshold value and a map of degraded operation for a state of charge of the electrical energy storage element below the intermediate threshold value.
- the intermediate threshold value can be between the value of the first threshold and the value of the second threshold as they were previously mentioned.
- the invention also relates to a motor vehicle comprising a management device as mentioned above.
- the invention also relates to a method for managing a powertrain of a hybrid vehicle equipped with a management device in accordance with what has been previously described and capable of defining an operating parameter of the powertrain as a function of data acoustic data, during which the state of charge of an electrical energy storage element intended to supply an electric motor of the powertrain is determined and during which said operating parameter of the powertrain is defined as a function of acoustic data when the state of charge of the electrical energy storage element is on the one hand lower than a first threshold value between an electric motorization and a hybrid motorization and on the other hand higher than a second threshold value forming a critical prioritization threshold electric charging by the heat engine of the hybrid vehicle.
- mapping implemented in the acoustics management module, corresponding to minimum gear ratio levels, when the hybrid vehicle is configured in a type of parallel hybrid engine and reference is made to a second type of mapping implemented in the acoustics management module, corresponding to levels of engine torque or maximum engine speed, when the hybrid vehicle is configured in a first type of series hybrid engine.
- FIG.l is a schematic representation of a hybrid vehicle, making visible the configuration with several modules of a control unit of a management device according to the invention, at least one of the modules being a module for managing acoustics;
- FIG.2 is a flowchart aimed at illustrating the management method according to one aspect of the invention, in which the management of the traction chain by considering the acoustics of the vehicle is a function of the state of charge of the battery ;
- FIG.3 is a flowchart aimed at illustrating the management method according to one aspect of the invention, in which the management of the traction chain by considering the acoustics of the vehicle is a function of the type of hybrid engine implemented;
- FIG.4 is a schematic representation of a hybrid vehicle powertrain, in a parallel hybrid drive configuration
- FIG.5 is a schematic representation of a hybrid vehicle powertrain, in a series hybrid engine configuration
- FIG.6 is an example of mapping implemented in the acoustics management module of figure 1 and used in the case of a parallel hybrid engine configuration in accordance with figure 4;
- FIG.7 is an example of a first map implemented in the acoustics management module of figure 1 and used in the case of a series hybrid engine configuration in accordance with figure 5;
- FIG.8 is an example of a second map implemented in the acoustics management module of figure 1 and used in the case of a series hybrid engine configuration in accordance with figure 5.
- FIG. 1 illustrates a hybrid vehicle 1, comprising a powertrain equipped with a heat engine 2 and an electric motor 4, and an engine torque transmission system, comprising at least one automated gearbox 6, at a set of wheels 8.
- the electric motor 4 is in particular powered by an electrical energy storage element 5 formed by one or more batteries on board the vehicle.
- the hybrid vehicle may include a second electric motor which forms a high voltage starter.
- the hybrid vehicle is equipped with a powertrain management device 10 which notably comprises a control unit 12 configured to define at least one operating parameter 100 of the powertrain.
- a powertrain management device 10 which notably comprises a control unit 12 configured to define at least one operating parameter 100 of the powertrain.
- This operating parameter 100 can consist of an engine speed and/or torque value 2, or else consist of a ratio value of the automated gearbox 6.
- This operating parameter! 00 is determined by considering input data 7 which characterizes the state of the vehicle at a given instant and by considering management laws specific to on-board modules within the control unit 12, which give selection criteria of the operating parameter 100 as a function of the input data 7 considered.
- control unit 12 comprises several management modules 14 including at least one consumption management module 16 and an acoustics management module 18.
- the control unit 12 comprises four management modules 14 with, in addition to the consumption and acoustics management modules mentioned above, a depollution management module 20 and a driving pleasure management module 22.
- Each management module 14 is implemented with at least one cartography 24, or a database, specific, that is to say distinct from that (s) implemented (s) in the other management modules 14, and which gives at the module output a selection criterion 26 of an operating parameter as a function of the input data considered and of the cartography or specific database. Examples of mapping 24 and selection criterion 26 of operating parameter according to input data will be described in greater detail below in the context of the detailed description of the acoustics management module 18.
- the control unit is controlled by calculation software taking the name of “energy management law” (LGE), which is configured to process the various selection criteria 26 retrieved at the output of the management modules 14 and to determine depending on an operating parameter 100 of the powertrain responding to each of the constraints imposed by the criteria of the management modules.
- LGE energy management law
- the control unit also comprises input data recovery means 7, which may consist of sensors specific to the management device 10 according to the invention, or which may consist of communication means capable of recovering the data measured by sensors 28, 29 of the vehicle.
- the input data 7 of the energy management law within the control unit 12 can be a request from the driver, whether this is a braking request or a request acceleration, temperature data, exterior or interior, or even navigation information, for example to define the slope of the road on which the vehicle is traveling.
- the driver's request can in particular be determined by a value of the depression of the accelerator pedal of the vehicle or, alternatively, of the brake pedal of the vehicle.
- the temperature data can be determined via a vehicle temperature sensor 28, and the navigation information can be data retrieved from navigation software or else from a slope sensor 29, without this being limiting of the 'invention.
- Another input datum 7 consists of the state of charge of the battery SOC.
- This other input data will be described elsewhere, insofar as it can have a different impact from the other data on the management of the powertrain, in particular by modifying the taking into account of the constraints imposed by such and such a management module 14 and / or by modifying the map 24 considered within the acoustics management module 18.
- the energy management law i.e. the software driving the control unit, can act on three different levers, namely the selection of the gearbox ratio, the value torque of the heat engine and the torque value of the electric motor. More specifically, the energy management law will act on one or the other of these levers depending on the type of hybrid motorization implemented at that time in the vehicle, that is to say a hybrid motorization in parallel or in series depending on whether or not the internal combustion engine is in direct contact with the wheel set via the gearbox.
- Each of the management modules 14 is implemented with a map or a database which makes it possible to define authorized or privileged operating parameters in correlation with the type of management supported.
- the consumption management module is required to authorize or prohibit, for a given speed of the vehicle, a degree of acceleration controlled by the driver and a given environmental context of the vehicle, gear ratios or thermal engine speeds so that these generate operation of the powertrain favorable to low consumption of the vehicle.
- the depollution management module and the driving pleasure management module are required to authorize or prohibit, in the same context, other gearbox ratios or other thermal engine speeds so that these generate an operation of the powertrain favorable respectively to a low CO2 emission or a desired performance of the vehicle.
- the control unit comprises the acoustics management module 18 whose function is to inject into the energy management law constraints sized to limit acoustic inconsistencies.
- the acoustics management module is implemented for this purpose with several maps 24, which can be considered one or the other by the management module according to a load level of the storage element of electrical energy and/or depending on a type of hybrid motorization implemented at this instant by the hybrid vehicle.
- mapping 24 implemented in the acoustics management module 18 will be more particularly described below, with reference to FIGS. 6 to 8, via several different examples.
- Each map 24 implemented in the acoustics management module 18 is constructed empirically on a test bench or via digital analysis, with decibel tests to verify, for each gear ratio or engine speed at a given speed of the vehicle, or a given acceleration of the vehicle, if the difference observed between the noise of the combustion engine observed and the theoretical noise expected by the user generates an acoustic inconsistency.
- the energy management law that is to say the software of the control unit, seeks, to optimize the energy efficiency of the powertrain, points of operation of the thermal engine at high power to quickly recharge the battery , which implies high engine speeds especially when the powertrain is equipped with a four or five-speed gearbox. Thanks to the additional constraint imposed on the energy management law by the acoustics management module, or in other words thanks to the selection criterion 26 of an operating parameter imposed by the acoustics management module. acoustics, the energy management law can in particular be configured so as to avoid choosing gear ratios that are too low to reach the desired operating points.
- FIG. 2 a characteristic of the invention according to which the management device considers the state of charge of the battery.
- the energy management law LGE initiates a first phase 101 during which an instantaneous value of the state of charge of the battery SOC is compared with a first threshold value SI.
- the various values, instantaneous or threshold can in particular be expressed as a percentage of the total charge of the battery, and in this context, the first threshold value SI can be of the order of 50%.
- the vehicle can be considered to be in an all-electric phase, and it is not necessary to control the heat engine of the powertrain to supply the storage element with electric energy.
- the electric phase of the vehicle does not generate noise from the heat engine and no acoustic inconsistency is noted by the user.
- the LGE energy management law takes in this case a first configuration LGE-1, with a supply of the torque requested only by the electric motor and with operating criteria generated at least by the consumption management module 16 which does not concern than the operation of the electric motor, and which thus takes no account of the constraints specific to the acoustics management module.
- the vehicle can be considered to be in the hybridization phase during which it is desired, outside the critical state of the vehicle, to operate the internal combustion engine to recharge the battery .
- a second phase 102 is then carried out during which an instantaneous value of the state of charge of the battery SOC is compared with a second threshold value S2, strictly lower than the first threshold value SL.
- this second threshold value corresponds to a very discharged battery. If the instantaneous value SOC is greater than the second threshold value S2, the vehicle can be considered to be in a conventional hybridization phase, with the heat engine of the powertrain which is put into operation to at least supply the storage element of electrical energy, and if necessary also participate in generating the torque at the wheels of the vehicle. In this phase of recharging the electrical energy storage element, there is a risk of having high revs which generate a noise which does not correspond to the noise intuitively expected by the driver to correspond to the speed and the instantaneous acceleration of the vehicle, and this more particularly when the number of gear ratios of the gearbox is at most of the order of four or five.
- the LGE energy management law takes in this case a second LGE-2 configuration, with operating instructions sent to both the electric motor and the heat engine to supply the torque to the wheels requested, and with specific operating criteria of the heat engine generated by several management modules 14 including the acoustics management module 18.
- the vehicle can be considered to be in a state of critical autonomy, and the energy management law switches to a prioritization mode, with importance given to recovery or saving electrical energy.
- the LGE energy management law in this case takes a third LGE-3 configuration, with operating instructions sent to both the electric motor and the heat engine to supply the torque to the wheels requested and to produce maximum energy. charging station intended for the energy storage device, the notion of acoustics being left aside in this case and the constraints that may be imposed by the acoustics management module being ignored by the control unit and the law energy management.
- the first threshold value SI is of the order of 50% while the second threshold value S2 is of the order of 1%, but it should be noted that the threshold values can be variable depending on the type of vehicle, and in particular depending on the type of rechargeable battery present on the vehicle.
- the taking into account of the constraints imposed by the acoustic considerations in the energy management law is a function of the charge level of the battery, and that the acoustic constraints can, in case excessively low battery charge, not to be taken into account due to the effect of prioritization in relation to the vehicle's range.
- the constraints imposed by acoustic considerations in the energy management law could be a function of parameters other than the level of charge of the battery and for example be a function of the reliability of components (temperature maximum tolerable by certain components, maximum power of certain components, maximum speed of certain components) or other criteria, which could be chosen, in a non-limiting way among the power level corresponding to the will of the driver, the constraints of depollution of the thermal engine (for example, intrusive diagnostics that can only take place within a certain torque range or with certain gear ratios), etc.
- the acoustics management module 18 intervenes in the definition of an operating parameter of the powertrain and this operating parameter 100 can vary, depending on the type of hybrid engine and the fact that the heat engine whether or not engaged with the wheel set via the gearbox, between an operating speed of the heat engine and a ratio of the gearbox.
- the management device 10 determines whether the powertrain is in a first parallel hybrid mode M1 or in a second series hybrid mode M2.
- the powertrain is in a configuration identical to that illustrated in FIG. 4.
- the heat engine is implemented in such a way that part of the energy delivered by the heat engine is used to recharge the electrical energy storage element 5 and that the other part of the energy delivered by the heat engine is used to supply torque directly to the wheels.
- a gearbox ratio is engaged with the output shaft of the heat engine so that torque is transmitted to the wheel set, so that a link is made between the operation of the heat engine on the one hand and the speed and the acceleration of the vehicle on the other hand.
- the acoustics management module 18 uses a first particular map 241 in that it imposes constraints on the gearshift of the gearbox, and more particularly by imposing a minimum ratio below which the gearbox must not be configured, so that the gear selected in the end by the control unit 12 does not generate acoustic inconsistency for the driver and any passengers of the vehicle.
- FIG. 6 An example of a first map 241 is illustrated in FIG. 6.
- An operating parameter 100 of the powertrain is entered in each of the boxes, in correspondence with a given speed of the vehicle, visible on the abscissa of the table, and an acceleration of the vehicle, visible on the ordinate of the table, the acceleration corresponding here to a percentage of the maximum acceleration, that is to say a percentage of the maximum depression of the accelerator pedal by the driver, if applicable.
- Each operating parameter 100 is here a minimum gearbox ratio to be observed, presented here in the form of a first ratio Rx, a second ratio Ry or a third ratio Rz.
- the first map 241 is such that for a vehicle speed of the order of 65 km/h, the energy management module the acoustics 18 will prevent the control unit 12 from choosing a gearbox ratio lower than the Rx ratio for a requested acceleration of the order of 65% and a gearbox ratio lower than the Ry ratio for a requested acceleration of the order of 15%.
- the constraint imposed in the definition of the operating parameter is then sent to the control unit 12 and the energy management law forming software of the control unit takes account of the minimum ratio Rx, Ry, Rz to be respected according to the vehicle driving conditions.
- the control unit 12 also takes into account the constraints or recommendations imposed by the other management modules 14, and in particular the consumption management module 16.
- the law gearshift or in other words the first mapping 241 implemented in the acoustics management module and used in the first parallel hybridization mode M1 allows the energy management law and the control unit 12 to optimize the instantaneous operation of the thermal and electric motors, that is to say the distribution of the torques and speeds between the various motors, for a speed and acceleration desired by the driver and therefore the fuel consumption of the vehicle, while taking account of the criteria dictated by the acoustics, it being understood that for a given speed, the lower the gear ratio, the higher the engine speed must be, in order to induce a noise which is consistent for the user .
- the powertrain is in a configuration identical to that illustrated in Figure 5.
- the thermal engine is decoupled from the wheel set and it is implemented in such a way that the energy delivered by the engine thermal is used to recharge the electrical energy storage element 5, if necessary via the second electric motor forming a high voltage starter, and the torque to the wheels is entirely provided by the main electric motor.
- the speed of the heat engine and the torque of the heat engine can be set independently of the speed and the acceleration of the vehicle.
- the acoustics management module 18 then uses two other special maps 242, 243, distinct from the first map 241 mentioned above.
- the acoustics management module 18 uses a second map 242 specific in that it imposes constraints on the engine speed as a function of the speed of the vehicle and the torque at the wheels requested by the driver, in specifying what the maximum engine speed must be. It is thus intended that the speed of the thermal engine finally defined by the control unit 12 has a value lower than the maximum value authorized by the acoustics management module 18, since the energy management law is in the second LGE-2 configuration which allows the constraints imposed by the acoustics management module to be taken into account.
- the acoustics management module 18 uses a third map 243 specific in that it imposes constraints on the engine torque according to the speed of the vehicle and the torque at the wheels requested by the driver, specifying what the maximum torque of the internal combustion engine must be. It is thus intended that the torque of the thermal engine finally defined by the control unit 12 has a value lower than the maximum value authorized by the acoustics management module 18, since the energy management law is in the second LGE-2 configuration which allows the constraints imposed by the acoustics management module to be taken into account.
- FIG. 7 An example of a second map 242 is illustrated in FIG. 7 and an example of a third map is illustrated in FIG. 8.
- An operating parameter 100 of the powertrain is entered in each of the boxes of these maps, in correspondence with a given speed of the vehicle, visible on the abscissa of the table, and a requested wheel torque, visible on the ordinate of the table.
- each operating parameter 100 is a maximum speed of the thermal engine to be respected, presented here in the form of different successive speeds R1, R2, . . ., R6.
- the second map 242 is such that for a vehicle speed of the order of 40 km/h, the module for managing the Acoustic 18 will prevent the control unit 12 from choosing a speed of the heat engine higher than the speed RI for a torque at the wheels of zero and a speed of the heat engine higher than the speed R5 for a torque at the wheels of the order of 200 Nm.
- each operating parameter 100 is a maximum operating torque of the thermal engine to be respected, presented here in the form of different successive speeds C1, C2, . . ., C9, the maximum operating torque corresponding here to a percentage of the maximum torque available.
- the third map 243 is such that for a vehicle speed of the order of 40 km/h, the management module of acoustic 18 will prevent the control unit 12 from choosing, for a torque at the wheels of the order of 400 Nm, an operating torque of the combustion engine greater than an operating torque value of the order of Cl % of the torque maximum available and, for a torque at the wheels of the order of 1200 Nm, an operating torque of the combustion engine greater than an operating torque value of the order of C6% of the maximum available torque.
- the constraints imposed in the definition of the operating parameters are then sent to the control unit 12 and the energy management law forming software of the control unit takes account, according to the driving conditions of the vehicle, of a part of the maximum speed RI, ... R6 not to be exceeded and on the other hand of the maximum torque Cl, . . . C9 not to be exceeded.
- control unit 12 also takes into account the constraints or recommendations imposed by the other management modules 14, and in particular the consumption management module 16.
- the criteria for defining a operating parameter of the powertrain namely a maximum torque and a maximum speed of the combustion engine, as imposed by the maps 242, 243 implemented in the acoustics management module 18 and used in the second mode of M2 series hybridization, allow the energy management law and the control unit 12 to optimize the instantaneous operation of the thermal and electric motors, that is to say the distribution of the torques and speeds, for a speed and acceleration desired by the driver, and therefore the consumption of the vehicle, while taking into account the criteria dictated by the acoustics.
- the maps 242, 243 associated with the series hybridization mode can moreover be specific in that they impose, when the vehicle speed input datum is within a range of given values, for example between 25 km/h and 60 km/h, whether operating parameters such as the speed of the thermal engine are equal or substantially equal to the corresponding operating parameters which result from the ratio imposed by the first mapping in the parallel hybridization mode for the same speed.
- a switch from one hybridization mode to another is allowed, in particular when the state of charge of the battery passes from one side to the other of the first threshold SI, which is consistent for the user, that is to say without acoustic inconsistency.
- This range of speed values can be configured according to the vehicle.
- the parallel hybrid mode due to the reduction of the lowest gear ratio, cannot operate below a certain speed, which is intrinsic to the hybrid technology chosen.
- the parallel hybrid mode On a low speed range the parallel hybrid mode is impossible, on a high range the parallel mode is almost always preferred for consumption, for an intermediate range between for example 25 and 60 km/h approximately, the two modes can co-exist and the module acoustics allows continuous operation between the two modes in order to ensure acoustic progressiveness.
- the invention successfully achieves the aim it had set itself, and makes it possible to propose a device for managing a hybrid vehicle powertrain in which a control unit and the associated energy management law are able to define an operating parameter of the powertrain taking into account the constraints imposed by the acoustics, in particular to guarantee an engine noise perceived by the customer which is in phase with the speed of the vehicle and the request for acceleration.
- the acoustics management module can be configured with more maps than what has been described and illustrated, in particular to refine the constraints imposed on the choice of the parameters of operation according to the charge level of the electrical energy storage element.
- Intermediate thresholds can be configured and mappings in standard mode and in degraded mode can be implemented to be considered selectively depending on whether the level of charge of the electrical energy storage element is lower or higher than these intermediate thresholds.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
- Motor Power Transmission Devices (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2114190A FR3130730B1 (fr) | 2021-12-21 | 2021-12-21 | Dispositif de gestion d’un groupe motopropulseur de véhicule hybride |
| PCT/EP2022/085085 WO2023117474A1 (fr) | 2021-12-21 | 2022-12-09 | Dispositif de gestion d'un groupe motopropulseur de véhicule hybride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4452681A1 true EP4452681A1 (fr) | 2024-10-30 |
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ID=80933403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22834957.7A Pending EP4452681A1 (fr) | 2021-12-21 | 2022-12-09 | Dispositif de gestion d'un groupe motopropulseur de véhicule hybride |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4452681A1 (fr) |
| JP (1) | JP2025500442A (fr) |
| KR (1) | KR20240119101A (fr) |
| FR (1) | FR3130730B1 (fr) |
| WO (1) | WO2023117474A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6967633B2 (ja) * | 2017-06-30 | 2021-11-17 | 本田技研工業株式会社 | 車両の制御装置 |
| US10730505B2 (en) * | 2018-05-09 | 2020-08-04 | Karma Automotive Llc | Hybrid electric vehicle using intelligent vehicle controller |
| JP2021098424A (ja) * | 2019-12-20 | 2021-07-01 | 本田技研工業株式会社 | 車両の制御装置 |
| JP7075958B2 (ja) * | 2020-02-28 | 2022-05-26 | 本田技研工業株式会社 | 車両の制御装置 |
-
2021
- 2021-12-21 FR FR2114190A patent/FR3130730B1/fr active Active
-
2022
- 2022-12-09 WO PCT/EP2022/085085 patent/WO2023117474A1/fr not_active Ceased
- 2022-12-09 JP JP2024538050A patent/JP2025500442A/ja active Pending
- 2022-12-09 EP EP22834957.7A patent/EP4452681A1/fr active Pending
- 2022-12-09 KR KR1020247022273A patent/KR20240119101A/ko active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2025500442A (ja) | 2025-01-09 |
| WO2023117474A1 (fr) | 2023-06-29 |
| FR3130730B1 (fr) | 2024-07-05 |
| FR3130730A1 (fr) | 2023-06-23 |
| KR20240119101A (ko) | 2024-08-06 |
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