EP4051896A1 - Procédé de démarrage d'un moteur à combustion interne dans une architecture de traction hybride - Google Patents
Procédé de démarrage d'un moteur à combustion interne dans une architecture de traction hybrideInfo
- Publication number
- EP4051896A1 EP4051896A1 EP20796632.6A EP20796632A EP4051896A1 EP 4051896 A1 EP4051896 A1 EP 4051896A1 EP 20796632 A EP20796632 A EP 20796632A EP 4051896 A1 EP4051896 A1 EP 4051896A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat engine
- clutch
- starter
- starting
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 title abstract description 6
- 239000007858 starting material Substances 0.000 claims abstract description 37
- 230000003213 activating effect Effects 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units 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 driveline clutches
- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/006—Starting of engines by means of electric motors using a plurality of electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N5/00—Starting apparatus having mechanical power storage
- F02N5/04—Starting apparatus having mechanical power storage of inertia type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
-
- 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
- B60W2050/0062—Adapting control system settings
- B60W2050/0075—Automatic parameter input, automatic initialising or calibrating means
- B60W2050/009—Priority selection
- B60W2050/0094—Priority selection of control units
-
- 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
- B60W2510/1015—Input shaft speed, e.g. turbine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N2011/0881—Components of the circuit not provided for by previous groups
- F02N2011/0888—DC/DC converters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2300/00—Control related aspects of engine starting
- F02N2300/20—Control related aspects of engine starting characterised by the control method
- F02N2300/2002—Control related aspects of engine starting characterised by the control method using different starting modes, methods, or actuators depending on circumstances, e.g. engine temperature or component wear
-
- 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 a method of controlling a starting of a heat engine in a hybrid traction architecture, in particular for a motor vehicle.
- a motor vehicle powertrain can include a heat engine and an electric traction motor installed on a train of a motor vehicle, in particular a front axle.
- the electric traction motor is coupled to the heat engine via a first clutch.
- the electric traction motor is coupled with a gearbox via a second clutch.
- the gearbox output shaft engages the vehicle wheels via a differential.
- a starter called a reinforced starter, generally operating on the low voltage electrical network, in particular 12 volts, is used to start and restart the heat engine during travel.
- the invention aims to effectively remedy this drawback by proposing a method for controlling a starting of a heat engine belonging to a hybrid traction chain installed on a train of a motor vehicle fitted with wheels, said chain traction also comprising an electric traction motor, a gearbox having a primary shaft and a secondary shaft, and a starter meshed with a starting ring gear of the heat engine, the electric traction motor being coupled to the heat engine by the intermediary of a first clutch with the primary shaft of the gearbox via a second clutch, the motor vehicle being in an electric running phase provided by the electric traction motor in which the first clutch is open while the second clutch is closed, and a starting of the heat engine being requested, said method comprising a selection step, as a function of a control me of the primary shaft of the gearbox, one or two components among the starter and the electric traction motor to ensure the starting of the heat engine.
- the invention makes it possible, when necessary, to pool the action of the reinforced starter and of the electric traction motor to ensure the starting of the heat engine.
- the invention thus makes it possible to increase the level of torque supplied to the crankshaft and to reduce the restart time of the heat engine.
- the invention also makes it possible to limit the power of the electric traction motor as much as possible while being able to use a reinforced starter already present on any motor vehicle equipped with a heat engine.
- the electric traction motor alone ensures the starting of the heat engine by supplying only a torque to the crankshaft of the heat engine.
- the electric traction motor and the starter together ensure the starting of the heat engine by together supplying a torque to the crankshaft of the heat engine.
- the method comprises a step of controlling a partial closing of a clutch mechanically connecting the electric traction motor to the heat engine and a step of activating the starter, so that the starter and the electric traction motor simultaneously provide torque to the heat engine to ensure it starts.
- a clutch is slid and transmits only a few Newton-meters before controlling the activation of the starter so as to compensate for a dead travel between a fully open position of the clutch and a point clutch lick.
- the step of controlling the partial closing of the clutch and the step of activating the starter are controlled in parallel with one another.
- the step of controlling the partial closing of the clutch and the step of activating the starter are controlled offset from one another.
- the threshold corresponds to a first downshifting regime.
- the traction chain is devoid of a reversible rotating electric machine coupled to the heat engine via an accessory facade.
- the invention also relates to a computer comprising the means of acquisition, processing by software instructions stored in a memory as well as the control means required for the implementation of the steps of the method for controlling a start-up. of a heat engine as defined above.
- FIG. 1 is a schematic representation of a power train for a motor vehicle implementing a method for controlling a starting of a heat engine according to the invention
- FIG. 2 is a schematic representation illustrating a distribution of electrical and mechanical power between the various components of the traction chain of FIG. 1;
- Figure 3 is a graphical representation of the evolution of the maximum torque available from the electric traction motor and the starting threshold of the heat engine as a function of the speed of the primary shaft of the gearbox;
- FIG. 4 is a temporal diagram of the strategy implemented for the transition from the electric driving mode to the thermal driving mode when the speed of the primary shaft of the gearbox is below the downshift threshold of the first. ;
- FIG. 5 is a temporal diagram of the strategy implemented for the transition from the electric driving mode to the thermal driving mode when the speed of the primary shaft of the gearbox is greater than the first downshift threshold. .
- Figure 1 shows a traction chain 10 for a motor vehicle comprising a heat engine 11 associated with a flywheel system 12 and an electric traction motor 13 installed on a train of a motor vehicle, in particular a train before.
- the heat engine 11 is for example a three-cylinder heat engine. As a variant, the heat engine 11 could of course include a different number of cylinders.
- the electric traction motor 13 is coupled to the heat engine 11 via a first KO clutch.
- the electric traction motor 13 is coupled with a gearbox 15 via a second clutch K1.
- the gearbox 15 comprises a primary shaft 14 and a secondary shaft 16 connected to the wheels 17 via a differential (not shown).
- the KO clutch is open while the K1 clutch is closed.
- both clutches KO and K1 are closed.
- an air conditioning compressor 20 may be coupled to the heat engine 11 by means of a movement transmission device 21.
- This device 21 may for example include a chain or a belt cooperating with carried pulleys respectively by the crankshaft and the compressor shaft 20.
- a starter 22 is provided for the cold start of the heat engine 11 as well as its restart following its cut performed according to the traffic conditions.
- the starter 22 comprises a drive pinion meshing with a crown of the heat engine 11.
- the traction chain 10 is devoid of reversible rotating electric machine coupled to the heat engine 11 via the accessories facade.
- FIG. 2 illustrates an example of the distribution of electrical power (solid arrow) and of mechanical power (dotted arrow) between the various components of the traction chain 10.
- the electric traction motor 13 is powered by a traction battery 25.
- the electric traction motor 13 may have a supply voltage of 48 volts.
- the starter 22 is powered by a battery 28 having an operating voltage of 12 volts.
- a 12-volt electrical network, referenced 26, is connected to the 48-volt electrical network via a DC / DC converter
- a computer 23 shown in Figure 1 is able to select, depending on a speed of the primary shaft of the gearbox 15, one or two members among the starter 22 and the electric traction motor 13 for ensure that the heat engine starts 11.
- the computer 23 is able to control the starter 22, the electric traction motor 13, as well as the clutches KO and K1. More generally, the computer 23 comprises the means of acquisition, processing by software instructions stored in a memory as well as the control means required to implement the steps of the method of the invention.
- Figure 3 shows the evolution of the maximum torque Cmax_MT available from the electric traction motor 13 and the starting threshold of the heat engine S_Mth as a function of the speed W_ap of the primary shaft of the gearbox 15.
- the threshold of starting of the heat engine S_Mth is determined so as to optimize fuel consumption of the motor vehicle.
- the starting threshold of the heat engine S_Mth may vary depending on the type of heat engine 11.
- torque C supplied to the heat engine 11 to ensure its starting must be between 70 N.m and 80 N.m.
- the torque reserve of the electric motor 13 is sufficient in the zone Z1 to start the heat engine 11 when the speed of the primary shaft W_ap is less than a threshold S_ret corresponding to the downshifting threshold of the first gear .
- the torque reserve of the electric motor 13 is insufficient in the zone Z2 to start the heat engine 11 when the speed of the primary shaft W_ap is greater than the downshifting threshold of the first gear S_ret.
- the electric traction motor 13 and the starter 22 together ensure the starting of the heat engine 11 by supplying together a torque to the crankshaft of the heat engine 11.
- the starter 22 thus supplies a torque in the operating zone Z2 in which a drop in the torque of the electric traction motor is observed 13.
- the downshift threshold S_ret is typically of the order of 1100 rpm for a motor vehicle. By “of the order of” is meant a variation of plus or minus 10% around the target value. It will be noted that the S_ret downshifting thresholds of the upper gears are located at speeds at least greater than or equal to that of the first gear.
- the upper graph represents the evolution of the torque C of the various components of the traction chain 10.
- the lower graph represents the evolution of the speed W of the electric motor 13 and of the heat engine 11.
- Fuel injection begins at time T4 and when the heat engine 11 has reached its idling speed at time T5, the KO clutch closes while the torque applied by the electric traction motor 13 goes to zero.
- the heat engine 11 begins to transmit torque from the instant T6.
- the vehicle then operates in thermal mode (the thermal engine 11 transmits torque to the wheels 17 while the electric motor no longer transmits torque to the wheels 17).
- the top graph represents the evolution of the torque C of the various components of the traction chain 10.
- the bottom graph represents the evolution of the speed W of the electric motor 13 and of the heat engine 11.
- the heat engine 11 is turned off, while a torque is applied to the wheels 17 by the electric traction motor 13.
- the clutch K1 is closed.
- the KO clutch is open.
- the KO clutch is slightly slippery and only transmits a few Newton meters. This makes it possible to have a high reactivity of the KO clutch, because the backstop between the fully open position of the KO clutch and its licking point is compensated. Given that the KO clutch transmits only a few Newton-meters in this period and not the torque reserve of the electric motor 13 corresponding to the difference between its operating torque and its peak torque, the energy losses are reduced.
- the starter 22 is activated, so that the starter 22 and the electric motor 13 together transmit a torque to the heat engine 11 to ensure its start-up.
- the partial closing control steps of the KO clutch and activation of the starter 22 can be controlled in parallel or in a manner offset from one another. In all cases, the objective is to tend towards the maximum probability of having at the same time a maximum torque level from the two components towards the crankshaft of the heat engine 11.
- time delays can be applied between the step of controlling the clutch KO and the step of activating the starter 22. These time delays represent time constants and reaction times of the organs at one level. It is considered that the temporal uncertainty relating to the reaction time of the starter 22 is of the order of 50 ms (cf. window F1), which is acceptable for good approval.
- the KO clutch closes at time T5 and the heat engine 11 begins to transmit torque from time T6.
- the vehicle then operates in thermal mode (the thermal engine 11 transmits torque to the wheels 17 while the electric motor no longer transmits torque to the wheels 17).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1912279A FR3102809B1 (fr) | 2019-10-31 | 2019-10-31 | Procede de pilotage d'un demarrage d'un moteur thermique dans une architecture de traction hybride |
PCT/FR2020/051739 WO2021084172A1 (fr) | 2019-10-31 | 2020-10-05 | Procédé de démarrage d'un moteur à combustion interne dans une architecture de traction hybride |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4051896A1 true EP4051896A1 (fr) | 2022-09-07 |
Family
ID=69375583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20796632.6A Withdrawn EP4051896A1 (fr) | 2019-10-31 | 2020-10-05 | Procédé de démarrage d'un moteur à combustion interne dans une architecture de traction hybride |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4051896A1 (fr) |
CN (1) | CN114616151A (fr) |
FR (1) | FR3102809B1 (fr) |
WO (1) | WO2021084172A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11351984B2 (en) * | 2020-09-28 | 2022-06-07 | Ford Global Technologies, Llc | Methods and system for selecting an engine starting device |
FR3142975B1 (fr) * | 2022-12-12 | 2024-10-25 | Psa Automobiles Sa | Contrôle du démarrage en douceur d’un moteur thermique d’un véhicule |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008027658A1 (de) * | 2008-06-10 | 2009-12-17 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Starten einer Brennkraftmaschine eines Hybridfahrzeugs |
JP5899666B2 (ja) * | 2011-06-07 | 2016-04-06 | 日産自動車株式会社 | ハイブリッド車両のエンジン始動制御装置 |
WO2013077161A1 (fr) * | 2011-11-25 | 2013-05-30 | 日産自動車株式会社 | Dispositif de commande de véhicule hybride |
DE102013225150A1 (de) * | 2013-12-06 | 2015-06-11 | Volkswagen Aktiengesellschaft | Verfahren zum Start eines Verbrennungsmotors eines Kraftfahrzeugs und Kraftfahrzeug |
-
2019
- 2019-10-31 FR FR1912279A patent/FR3102809B1/fr active Active
-
2020
- 2020-10-05 CN CN202080076414.6A patent/CN114616151A/zh active Pending
- 2020-10-05 EP EP20796632.6A patent/EP4051896A1/fr not_active Withdrawn
- 2020-10-05 WO PCT/FR2020/051739 patent/WO2021084172A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3102809B1 (fr) | 2022-05-13 |
WO2021084172A1 (fr) | 2021-05-06 |
FR3102809A1 (fr) | 2021-05-07 |
CN114616151A (zh) | 2022-06-10 |
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