EP2092632A1 - Procede de controle de la motricite des roues arrieres d'un vehicule automobile et ensemble d'entrainement correspondant - Google Patents
Procede de controle de la motricite des roues arrieres d'un vehicule automobile et ensemble d'entrainement correspondantInfo
- Publication number
- EP2092632A1 EP2092632A1 EP07858663A EP07858663A EP2092632A1 EP 2092632 A1 EP2092632 A1 EP 2092632A1 EP 07858663 A EP07858663 A EP 07858663A EP 07858663 A EP07858663 A EP 07858663A EP 2092632 A1 EP2092632 A1 EP 2092632A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machine
- torque
- conduction angle
- setpoint
- mode
- 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- Withdrawn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
Classifications
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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
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/007—Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
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- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/14—Dynamic electric regenerative braking for vehicles propelled by ac motors
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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
- B60W20/19—Control strategies specially adapted for achieving a particular effect for achieving enhanced acceleration
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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
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/425—Temperature
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/48—Drive Train control parameters related to transmissions
- B60L2240/486—Operating parameters
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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
- B60L2260/00—Operating Modes
- B60L2260/20—Drive modes; Transition between modes
- B60L2260/28—Four wheel or all wheel drive
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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
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/44—Control modes by parameter estimation
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2270/00—Problem solutions or means not otherwise provided for
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- 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
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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
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- B60W2510/083—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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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
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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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
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- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
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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
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Definitions
- the invention relates to motor vehicle drive assemblies and methods for controlling such assemblies.
- the invention relates to controlling the motricity of the rear wheels of a hybrid motor vehicle.
- Hybrid vehicles generally comprise, on the one hand, a heat engine and, on the other hand, an electric drive system.
- the electric drive system is used to provide engine torque to the rear wheels to temporarily provide additional electrical torque in traction, so that improve the dynamic performance of allowing the vehicle to operate on four-wheel drive.
- the provision of a driving torque by the electric drive system is advantageous when the vehicle is provided with a transmission system, clutch type, for mechanically disconnecting the transmission of torque to the wheels, especially during the gear changes. speeds.
- the reversibility of electric traction systems allows them to operate as a generator during braking or deceleration phases in order to recover the energy generated. This energy can then be stored and used during a next phase of traction, which significantly reduces the fuel consumption of the vehicle.
- the traction system When the traction system operates as a generator, it may be desirable to modify the torque of the machine to increase the generated electrical energy.
- an electric traction system for a hybrid motor vehicle having an internal combustion engine for providing engine torque to the front wheels and an electric traction system for providing engine torque to the rear wheels, capable of to obtain the highest possible torque, both in motor mode and in generator mode, over the entire speed range of a given machine.
- a high speed torque improvement would improve the cost / weight / volume compromise for a given inverter-machine system of an electric traction system for providing engine torque to a rear axle of a motor vehicle. hybrid, and this with fixed gear ratio,
- the object of the invention is therefore, according to a first aspect, a method of controlling the rear wheel drive of a hybrid motor vehicle in which a driving torque is supplied to the rear wheels by an electric traction machine and a driving torque is supplied to the front wheels by a heat engine.
- the electric machine is a switched double-sided reluctance machine, the machine being controlled in a DC mode so that a current flowing in each phase winding of the machine remains non-zero.
- a conduction angle setpoint of the machine is produced and an inverter is driven for each phase winding of the machine according to said conduction angle.
- the conduction angle setpoint is extracted from a table of angles addressed by a torque reference value.
- a correction value of the conduction angle setpoint extracted from the angle table is furthermore developed, the said correction value being calculated from an estimation of the calculated torque at from an estimate of the phase flow.
- a conduction angle command is generated at the beginning of the period from the conduction angle setpoint value and the correction value, and then the estimation of the torque and flux.
- a conduction angle command is developed from the conduction angle setpoint value and the correction value, and estimation of the torque and flux.
- the torque setpoint can be developed by a computer so as to increase the engine torque depending on the vehicle running conditions or to ensure a surplus of power.
- the machine is controlled DC in motor mode.
- the machine can be further controlled by direct current in generator mode so as to increase the energy recovered for storage of electrical energy.
- the subject of the invention is also, according to a second aspect, a driving assembly for a motor vehicle comprising:
- control unit being adapted to control said machine in a DC mode so that a current flowing in each phase winding of the machine remains non-zero.
- FIG. 1 is a block diagram illustrating the operating principle of a traction system of a hybrid motor vehicle
- FIG. 2 shows an exemplary embodiment of an electric traction system for a hybrid motor vehicle
- FIG. 3 shows a topology of an inverter for the phase control of the switched reluctance machine of the assembly of FIG. 2
- - Figures 4 and 5 show the shape of the currents and phase voltages of the inverter of Figure 3;
- FIG. 6 is a diagram showing the energy transmitted, during an electric period, at high speed in discontinuous mode; - Figure 7 shows the evolution of the energy transmitted over several periods in DC control mode;
- FIG. 8 is a graph showing the improvement of the maximum torque curve as a function of speed, with the DC control law according to the invention.
- FIGS. 9 and 10 respectively illustrate the temporal evolution of the flow and the current thanks to the torque control according to the invention;
- FIGS. 11 and 12 illustrate the evolution of the conduction angle and the torque gain at each period by implementing a torque control in accordance with the invention;
- FIG. 13 shows an energy cycle over an electrical period in DC control mode, in steady state mode
- FIGS. 14 and 15 give examples of sequencing of the torque regulation
- FIGS. 16 and 17 respectively show the evolution of the torque and of the conduction angle during a transition from the discontinuous mode to the continuous mode
- FIGS. 18 and 19 respectively show the evolution of the flux and of the phase current during a transition from the discontinuous mode to the continuous mode
- FIGS. 20 and 21 respectively show the evolution of the torque and the conduction angle during a request for a sudden rise in torque from a continuous mode
- FIGS. 22 and 23 respectively show the evolution of the flow and phase current during a request for sudden rise in torque from the continuous mode
- FIG. 24 is a block diagram showing a possible embodiment of a hybrid motor vehicle drive system provided with a controlled clutch.
- Figure 1 there is shown the general architecture of a hybrid traction system of a motor vehicle with a drive assembly according to the invention.
- the drive assembly comprises a heat engine 1 associated with a transmission 2 ensuring the driving of the front wheels 3 and 4 of the vehicle.
- the drive assembly is also provided with a double - hinged switched reluctance electric traction machine 5, also known as a "variable reluctance machine", associated with an inverter or converter 6 for provide engine torque to the rear wheels 7 and 8 of the vehicle.
- a double - hinged switched reluctance electric traction machine also known as a "variable reluctance machine”
- inverter or converter 6 for provide engine torque to the rear wheels 7 and 8 of the vehicle.
- the assembly is powered by a battery 9 for storing electrical energy.
- the rotor movement of the switched reluctance machine is transmitted to the wheels 7 and 8 or vice versa.
- the electric machine 5 when the transmission 2 is mechanically disconnected, for example during gearshift changes, the electric machine 5 is biased to provide torque to the rear wheels to provide additional electric torque in traction to compensate for the break in torque caused by the disconnection of the transmission 2.
- the electric machine 5 can also be requested to operate the vehicle in four-wheel drive mode. Conversely, during braking or deceleration phases, the electric machine 5 operates as a generator, the generated electrical energy then being stored in the battery 9.
- FIG. 2 shows an exemplary embodiment of the electric traction assembly. This figure shows the variable reluctance machine
- control unit 9 comprising hardware and software means duly programmed to control the operation of the machine via the inverter 6 and, in particular, the magnetization phases and demagnetization as well as, in low speeds, the peak phase current that is regulated.
- the machine 5 is controlled by the control unit 9 by means of control laws from tables T addressed by a torque reference value Cons to give ON initiation angles, of conduction ⁇ p and the maximum peak current (Ii im ), as a function of the speed of the machine obtained from a sensor 10.
- the DC supply voltage of the inverter if it is may vary, as well as other parameters such as the temperature of the windings.
- a pointer is defined according to these external parameters (speed, supply voltage, winding temperature, etc.) and the torque setpoint C.
- This pointer then addresses the angle tables that provide the control parameters (ON, ⁇ p , I lim ) at low speed and the parameters (ON and ⁇ p ) at high speed.
- the control parameters ON, ⁇ p and I lim at low speed and ON, ⁇ p at high speed are used as input parameters of the control unit 9. these parameters being optimized for each point of torque-speed operation.
- an angle command ⁇ p ' is developed to control the inverters so as to obtain the desired torque.
- each phase of the machine 5 is controlled by means of an inverter 6.
- V D C represents the DC supply voltage of the inverter, II and 12 two switches. electrical switchable at the opening and closing and D l and D2 two diodes.
- the control unit 9 is arranged to control the machine over the entire speed range of the machine in DC mode so that a current in each phase winding remains non-zero.
- the magnetization of the phase of the machine which is done in the time interval constituted by the conduction angle ⁇ p , is controlled so that the conduction angle is greater than 180 °, for each electrical period.
- the torque delivered by the constant speed machine is proportional to the energy transmitted by a motor phase.
- the energy transmitted during a The electrical period at high speed is very small compared to the amount of potentially usable energy, that is to say as defined by the minimum phase inductances (curve I, teeth of the machine in opposition), maximum (Curve II; teeth in conjunction), and the maximum allowable phase current In 1n .
- the torque delivered by the machine 5 is proportional to the surface III of the curves shown in FIG.
- this conduction angle command ⁇ p ' is based on the use of tables of angles T addressed by a torque setpoint Cons. It is furthermore based on the development of a correction value of the angle setpoint ⁇ p resulting from a regulator 20.
- This regulator 20 comprises a comparator 22 which makes it possible to calculate an error ⁇ between a setpoint value of torque Cons and a setpoint value C es t estimated using means 24 for estimating torque from an estimate flow ⁇ is t, provided by flow estimation means referenced 25.
- This error ⁇ on the setpoint is processed by a corrector 26, for example of the proportional-integral type 26 by developing a correction value of the conduction angle ⁇ p to make the error ⁇ zero, the estimated setpoint being equal to the torque setpoint so as to ensure a conduction angle ⁇ p at least 180 ° and thus a DC mode operation.
- Rphase denotes the resistance of the stator winding of the machine 5; - Vphase is the phase voltage; and
- Iphase is the phase current.
- the estimation of the torque requires an electric period.
- the required torque is established only after several electrical periods.
- a conduction angle setpoint ⁇ p equal to the angle provided by the tables is applied. 8, that is, the error ⁇ is initialized to zero.
- the correction value of the angle setpoint is then calculated and modifies, if necessary, the conduction angle applied to the machine during the second period, or in the period following that in which the set torque change occurred.
- the start time of magnetization ON remains unchanged.
- the setpoint giving the value of the conduction angle ⁇ p is calculated.
- the beginning of the magnetization period can be devoted to the calculation of the command ⁇ p , the torque estimation then starting. Linear extrapolation is then performed over this period to estimate the torque and flux.
- the calculation of the command ⁇ p can be performed in parallel on the estimation of the torque during the start of magnetization.
- the timing diagram of Figure 15 illustrates this second option.
- FIGS. 16 and 17 respectively illustrate the evolution of the relative gain of the torque G and the conduction angle ⁇ p when switching from a discontinuous mode to a DC mode. It can be seen that, thanks to conduction in DC mode, a significant gain in torque is obtained.
- Figures 18 and 20 which illustrate the development of flux ⁇ and the phase current I p hase during a transition from a batch to a continuous current mode, the current conduction mode continuous provides a phase current gain and a phase flux gain.
- FIG. 20 and 21 which respectively illustrate the change in the relative gain in torque G and the conduction angle ⁇ p in the case of a request for a sudden increase in torque from a current mode. continuous, we see that the demand can be satisfied quickly.
- Figures 22 and 23 which respectively illustrate the variation of the current I p hase and ⁇ phase flux upon application of sudden rise in torque from a DC mode, it is seen that this request is accompanied by a rise in phase current and phase flow.
- the invention may in particular be applied to a transmission system comprising a clutch 27 controlled by a supervisor 28.
- the supervisor 28 can be programmed so as to cause the provision of the traction torque by the variable reluctance machine simultaneously with the control of the clutch 27, for example during a disengagement.
- switched reluctance technology which uses the DC mode offers excellent compromises for to satisfy the major constraints of a hybrid architecture for the rear axle.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0655048A FR2908721B1 (fr) | 2006-11-22 | 2006-11-22 | Procede de controle de la motricite des roues arriere d'un vehicule automobile et ensemble d'entrainement correspondant |
PCT/FR2007/052300 WO2008062125A1 (fr) | 2006-11-22 | 2007-11-06 | Procede de controle de la motricite des roues arrieres d'un vehicule automobile et ensemble d'entrainement correspondant |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2092632A1 true EP2092632A1 (fr) | 2009-08-26 |
Family
ID=38134843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07858663A Withdrawn EP2092632A1 (fr) | 2006-11-22 | 2007-11-06 | Procede de controle de la motricite des roues arrieres d'un vehicule automobile et ensemble d'entrainement correspondant |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2092632A1 (fr) |
FR (1) | FR2908721B1 (fr) |
WO (1) | WO2008062125A1 (fr) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9120404D0 (en) * | 1991-09-25 | 1991-11-06 | Switched Reluctance Drives Ltd | Control of switched reluctance machines |
JP3744414B2 (ja) * | 2001-11-29 | 2006-02-08 | トヨタ自動車株式会社 | 車両の制御装置 |
FR2877162B1 (fr) * | 2004-10-25 | 2008-12-19 | Renault Sas | Dispositif comprenant une machine a reluctance commutee comportant des enroulements de phase |
-
2006
- 2006-11-22 FR FR0655048A patent/FR2908721B1/fr not_active Expired - Fee Related
-
2007
- 2007-11-06 WO PCT/FR2007/052300 patent/WO2008062125A1/fr active Application Filing
- 2007-11-06 EP EP07858663A patent/EP2092632A1/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2008062125A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2908721A1 (fr) | 2008-05-23 |
WO2008062125A1 (fr) | 2008-05-29 |
FR2908721B1 (fr) | 2008-12-26 |
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