WO2013038481A1 - ハイブリッド車両の制御装置 - Google Patents
ハイブリッド車両の制御装置 Download PDFInfo
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- WO2013038481A1 WO2013038481A1 PCT/JP2011/070772 JP2011070772W WO2013038481A1 WO 2013038481 A1 WO2013038481 A1 WO 2013038481A1 JP 2011070772 W JP2011070772 W JP 2011070772W WO 2013038481 A1 WO2013038481 A1 WO 2013038481A1
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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
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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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
- B60K6/42—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 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 the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution 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
- B60W10/12—Conjoint control of vehicle sub-units of different type or different function including control of differentials
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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
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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
- B60K6/38—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 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 driveline clutches
- B60K2006/381—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 driveline clutches characterized by driveline brakes
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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
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/42—Clutches or brakes
- B60Y2400/421—Dog type clutches or brakes
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/93—Conjoint control of different elements
Definitions
- the present invention relates to a control apparatus for a hybrid vehicle having a configuration for locking an output shaft of an engine, and more particularly to an improvement for suppressing reverse rotation of the engine when unlocking the output shaft.
- a differential mechanism comprising a first rotating element, a second rotating element that is an input rotating member connected to the engine, and a third rotating element that is an output rotating member, and a first mechanism connected to the first rotating element
- a hybrid vehicle that includes an electric motor and a second electric motor that is connected to a power transmission path from the third rotating element to a driving wheel so as to be able to transmit power.
- a technique has been proposed in which a lock mechanism for fixing the output shaft of the engine to a non-rotating member such as a housing is provided.
- this is the power output device described in Patent Document 1. According to this technique, when the engine is stopped (non-rotating), the output shaft of the engine is locked, so that the first electric motor and the second electric motor can be used together as a driving source for traveling. High output of traveling can be realized.
- the present invention has been made against the background of the above circumstances, and an object of the present invention is to provide a control device for a hybrid vehicle that suppresses reverse rotation of the engine when the output shaft is unlocked. is there.
- the gist of the first invention is a first rotating element, a second rotating element that is an input rotating member connected to the engine, and a third rotating element that is an output rotating member.
- a control device for a hybrid vehicle comprising: a differential mechanism including an element; an electric motor coupled to the first rotating element; and a lock mechanism that fixes an output shaft of the engine to a non-rotating member.
- the locking mechanism is used from the state in which the output shaft is fixed to the non-rotating member by the locking mechanism and power is transmitted to the third rotating element by the electric motor.
- the absolute value of the torque of the motor is reduced and then the lock mechanism is released, so that for example, the response variation of the brake actuator provided in the lock mechanism Even if the fixing by the locking mechanism is released at an early stage, etc., the reverse rotation of the engine can be suitably suppressed. That is, it is possible to provide a control device for a hybrid vehicle that suppresses reverse rotation of the engine when unlocking the output shaft.
- the subject matter of the second invention which is dependent on the first invention, is that in the state where power is transmitted to the third rotating element by the electric motor, the torque of the electric motor reversely rotates the engine. It was made to be the direction to make it. In this way, in the case where the reverse rotation of the engine is likely to occur when the lock mechanism is released early, the reverse rotation of the engine when the output shaft is unlocked is preferably suppressed. Can do.
- the gist of the third invention subordinate to the first to second inventions is that the lock mechanism is used after the torque of the motor is changed in the direction of normal rotation of the engine at the time of switching. The fixing is released. In this way, reverse rotation of the engine when unlocking the output shaft can be suppressed in a suitable and practical manner.
- the gist of the fourth invention subordinate to the first invention, the second invention, the third invention subordinate to the first invention, or the third invention subordinate to the second invention is the third rotating element.
- the absolute value of the torque of the electric motor is reduced at the time of the switching, the absolute value of the torque of the second electric motor is connected to the power transmission path between the motor and the drive wheel. Can be maintained or increased. If it does in this way, the fall of the output torque to the drive wheel side at the time of releasing the lock of an output shaft can be controlled suitably.
- the fifth aspect of the present invention which is dependent on the fourth aspect of the invention dependent on the third aspect of the present invention, is the output shaft based on a change in rotational speed of the output shaft of the engine by torque control of the electric motor at the time of switching. The release of the fixing to the non-rotating member is detected. In this way, when the output shaft is unlocked, it can be detected in a suitable and practical manner that the lock has been released.
- FIG. 1 is a skeleton diagram illustrating the configuration of a hybrid vehicle drive device to which the present invention is preferably applied. It is a figure which illustrates the principal part of the electric system provided in order to control the hybrid drive by the drive device of FIG. It is a functional block diagram explaining the principal part of the control function with which the electronic control apparatus in the drive device of FIG. 1 was equipped.
- FIG. 2 is a collinear chart that can relatively represent the rotational speeds of three rotary elements in the differential mechanism provided in the drive device of FIG. 1, and shows a traveling state in which the engine is stopped.
- FIG. 2 is a collinear chart that can relatively represent the rotational speeds of three rotary elements in the differential mechanism provided in the drive device of FIG.
- FIG. 2 is a collinear diagram that can relatively represent the rotational speeds of three rotary elements in the differential mechanism provided in the drive device of FIG. 1, and shows a state in which the engine rotates reversely when the lock is released.
- FIG. 7 is a collinear diagram that can relatively represent the rotational speeds of the three rotary elements in the differential mechanism provided in the drive device of FIG. 1, and explains the balance of the output shaft torque at the time of unlocking. It is a time chart explaining the control of a present Example in the drive device of FIG. It is a flowchart explaining the principal part of the hybrid drive control of a present Example by the electronic controller with which the drive device of FIG. 1 was equipped.
- a power transmission path from the third rotating element to the drive wheels in the differential mechanism preferably, in addition to the first electric motor connected to the first rotating element, a power transmission path from the third rotating element to the drive wheels in the differential mechanism.
- a second electric motor that functions as a drive source is connected to be able to transmit power.
- the engine is stopped and at least one of the first electric motor and the second electric motor is used as a drive source, and the power is mechanically transmitted to the drive wheels using the engine as a drive source.
- Any one of a plurality of travel modes such as an engine travel mode for traveling is selectively established according to the travel state of the vehicle.
- the lock mechanism preferably fixes (locks) the output shaft of the engine to a non-rotating member in the travel mode in which the engine is stopped, while allowing the output shaft to rotate in the travel mode in which the engine is driven. To be switched.
- the first electric motor and the second electric motor can be used together as a drive source, and a relatively large output can be realized.
- the present invention is suitably applied to a so-called plug-in hybrid vehicle that includes a battery having a relatively large capacity and that can store power from a household power source to the battery.
- the locking mechanism is preferably a well-known meshing clutch (dog clutch).
- the locking mechanism has a plurality of meshing teeth on the outer periphery, and can be rotated integrally around the same axis as the output shaft of the engine.
- a first member provided; a plurality of meshing teeth corresponding to the meshing teeth of the first member; a second member fixed to the non-rotating member; and the meshing teeth of the first member and the second member
- a sleeve which is provided on the inner peripheral side, and is provided so as to be movable in the axial direction with respect to the first member and the second member in a state where the meshing teeth and the spline are meshed with each other.
- an actuator that drives the sleeve in the axial direction.
- the actuator is preferably a hydraulic actuator that drives the sleeve by hydraulic pressure (switches the position of the first member and the second member in the axial direction), and the electromagnetic actuator that drives the sleeve by electromagnetic force. Etc. may be provided.
- the lock mechanism is preferably a well-known multi-plate hydraulic friction engagement device whose engagement state is controlled by a hydraulic actuator.
- the present invention can be applied to a hybrid vehicle including an electromagnetic friction engagement device, a magnetic powder clutch, an alternator that functions as a regenerative brake, or the like, whose engagement state is controlled by an electromagnetic actuator, as the lock mechanism. Play. That is, the present invention is widely applied to hybrid vehicles provided with a lock mechanism that fixes the output shaft of the engine to a non-rotating member.
- FIG. 1 is a skeleton diagram illustrating the configuration of a hybrid vehicle drive device 10 (hereinafter simply referred to as drive device 10) to which the present invention is preferably applied.
- the drive device 10 shown in FIG. 1 is suitably used for an FF (front engine / front drive) type vehicle, and is composed of an engine 12 as a drive source (main power source) and a pair of left and right drive wheels.
- the first drive unit 16, the second drive unit 18, the differential gear device 20, and a pair of left and right wheels are connected to a power transmission path between the wheels 14l and 14r (hereinafter, simply referred to as the wheels 14 unless otherwise distinguished).
- Axles 22l and 22r hereinafter simply referred to as axles 22 unless otherwise distinguished).
- the engine 12 is, for example, an internal combustion engine such as a gasoline engine or a diesel engine that generates a driving force by combustion of fuel injected in a cylinder.
- the first drive unit 16 includes a planetary gear unit 24 having a sun gear S, a carrier CA, and a ring gear R, which are three rotating elements, and a first electric motor MG1 connected to the sun gear S of the planetary gear unit 24.
- a meshing clutch 46 as a lock mechanism is provided between a crankshaft 26 that is an output shaft of the engine 12 and a housing (transaxle housing) 28 that is a non-rotating member.
- the crankshaft 26 of the engine 12 is connected to the carrier CA of the planetary gear device 24 as an input shaft of the first drive unit 16.
- the crankshaft 26 is connected to a mechanical oil pump 30, and a hydraulic pressure is generated from the oil pump 30 as a source pressure of a hydraulic control circuit 48 described later by driving the engine 12. Yes.
- the ring gear R of the planetary gear device 24 is connected to the output gear 32. That is, the planetary gear unit 24 includes a sun gear S as a first rotating element, a carrier CA as a second rotating element connected to the engine 12 as an input rotating member, and a third rotating element as an output rotating member. It corresponds to the differential mechanism provided with the ring gear R as.
- the output gear 32 is meshed with a large-diameter gear 36 provided integrally with an intermediate output shaft 34 that is parallel to the crankshaft 26 as an input shaft of the first drive unit 16.
- a small diameter gear 38 provided integrally with the intermediate output shaft 34 is meshed with the input gear 40 of the differential gear device 20.
- the large diameter gear 36 is meshed with a second output gear 44 connected to the output shaft 42 of the second electric motor MG2.
- each of the first electric motor MG1 and the second electric motor MG2 is a motor generator having a function as a motor (engine) for generating a driving force and a generator (generator) for generating a reaction force.
- the first electric motor MG1 has at least a function as a generator
- the second electric motor MG2 has at least a function as a motor.
- the rotation output from the engine 12 in the first drive unit 16 is output from the output gear 32 via the planetary gear device 24 as a differential mechanism, and This is input to the input gear 40 of the differential gear device 20 through a large-diameter gear 36 provided on the intermediate output shaft 34 and a small-diameter gear 38 having a smaller number of teeth than the large-diameter gear 36.
- the rotation output from the output gear 32 is decelerated at a predetermined reduction ratio determined by the number of teeth of the large-diameter gear 36 and the number of teeth of the small-diameter gear 38, and the input gear 40 of the differential gear device 20. Is input.
- the differential gear device 20 functions as a final reduction gear.
- the rotation of the first electric motor MG1 in the first drive unit 16 is transmitted to the output gear 32 via the planetary gear unit 24, and a large-diameter gear 36 and a small-diameter gear 38 provided on the intermediate output shaft 34. It is comprised so that it may transmit to the input gear 40 of the said differential gear apparatus 20 via this.
- the rotation of the second electric motor MG2 in the second drive unit 18 is transmitted to the large diameter gear 36 provided on the intermediate output shaft 34 via the output shaft 42 and the second output gear 44, and the large diameter thereof. It is configured to be transmitted to the input gear 40 of the differential gear device 20 through the gear 36 and the small diameter gear 38. That is, the drive device 10 of the present embodiment is configured such that any of the engine 12, the first electric motor MG1, and the second electric motor MG2 can be used as a driving source for traveling.
- the meshing clutch 46 has a plurality of meshing teeth on the outer periphery, and is provided with an engine side member 46a provided so as to be integrally rotated about the same axis as the crankshaft 26, and the engine side member 46a.
- a plurality of meshing teeth corresponding to the meshing teeth are provided, and a housing side member 46b fixed to the housing 28 and a spline meshed with the meshing teeth of the engine side member 46a and the housing side member 46b are provided on the inner peripheral side.
- the spline is provided so as to be movable (slidable) in the axial direction with respect to the engine side member 46a and the housing side member 46b in a state where the spline is engaged with the meshing teeth of the engine side member 46a and the housing side member 46b.
- the actuator 46d preferably has the sleeve 46c in accordance with the hydraulic pressure Pbcr supplied from the hydraulic control circuit 48, and the spline provided on the inner peripheral side meshes both the engine side member 46a and the housing side member 46b.
- the hydraulic actuator moves between a state engaged with the teeth and a state engaged only with the engagement teeth of the housing side member 46b and not engaged with the engagement teeth of the engine side member 46a.
- FIG. 2 is a diagram illustrating the main part of the electric system provided for controlling the hybrid drive by the drive device 10 of the present embodiment.
- the drive device 10 includes a hybrid drive control electronic control device 50, an engine control electronic control device 52, and a motor control electronic control device 54.
- These electronic control devices 50, 52, and 54 are each configured to include a so-called microcomputer including a CPU, a ROM, a RAM, an input / output interface, and the like.
- various controls including hybrid drive control by the engine 12, the first electric motor MG1, and the second electric motor MG2, and operation control of the meshing clutch 46 are executed.
- the electronic control unit 52 mainly controls the drive (output torque) of the engine 12, and the electronic control unit 54 mainly drives the first motor MG1 and the second motor MG2. (Output torque) control will be described with respect to a mode in which the electronic control device 50 performs drive control of the entire drive device 10 via the electronic control devices 52 and 54.
- the electronic control devices 50, 52, and 54 it does not necessarily have to be provided as an individual control device, and may be provided as an integrated control device. Further, each of the electronic control devices 50, 52, 54 may be further divided into individual control devices.
- the electronic control device 50 is supplied with various signals from various sensors, switches, and the like provided in each part of the driving device 10. That is, a signal representing the vehicle speed V from the vehicle speed sensor, a signal representing the accelerator opening degree A CC which is the operation amount of the accelerator pedal corresponding to the driver's output request amount from the accelerator opening sensor, and the first electric motor from the MG1 rotation speed sensor A signal representing the rotational speed N MG1 of MG1 , a signal representing the rotational speed N MG2 of the second electric motor MG2 from the MG2 rotational speed sensor, a signal corresponding to the rotational speed N OUT of the output gear 32 from the output shaft rotational speed sensor, ATF signal corresponding from the oil temperature sensor in a temperature ATF temperature T ATF of the hydraulic fluid supplied to each part of the drive device 10, a signal corresponding the engine rotational speed sensor 56 to the rotational speed N E of the engine 12, and A signal corresponding to the battery SOC, which is the amount of power stored in a battery (power storage
- the electronic control device 50 sends command signals for performing drive control of the engine 12, drive control of the first electric motor MG1, and drive control of the second electric motor MG2 to the electronic control devices 52 and 54, respectively. Is output. That is, the intake air of the engine 12, which is a signal for controlling the output of the engine 12 via, for example, the engine output control device 62 (see FIG. 3) as an engine torque command to the electronic control device 52.
- An ignition signal or the like for instructing the ignition timing is output.
- first electric motor MG1 and the second electric motor MG1 and the second electric motor MG1 are transmitted from the battery (not shown) via the first inverter 64 and the second inverter 66 (see FIG. 3) as the MG1 torque command and the MG2 torque command to the electronic control unit 54.
- a command signal for controlling electric energy and the like supplied to electric motor MG2 is output.
- the output pressure from the electromagnetic control valve is applied to the electromagnetic control valve provided in the hydraulic control circuit 48 that regulates the hydraulic pressure Pbcr supplied to the actuator 46d.
- a hydraulic command signal for control is output.
- FIG. 3 is a functional block diagram for explaining a main part of the control function provided in the electronic control devices 50, 52, 54 and the like.
- the hybrid drive control unit 70 and the lock mechanism operation control unit 78 shown in FIG. 3 are both functionally provided in the electronic control unit 50. It may be provided in any of the devices 50, 52, and 54, and further may be provided in a control device different from the electronic control devices 50, 52, and 54.
- an engine drive control unit 72 included in the hybrid drive control unit 70 is functionally provided in the electronic control device 52
- a first motor drive control unit 74 and a second motor drive control unit 76 are functionally provided in the electronic control device 54.
- these control functions are provided in a distributed manner in the electronic control devices 50, 52, and 54, and processing is executed by transmitting and receiving information between the electronic control devices 50, 52, and 54. It does not matter.
- an engine drive control unit 72, a first motor drive control unit 74, and a second motor drive control unit 76 are included.
- these control functions will be described.
- the engine drive control unit 72 basically controls the drive of the engine 12 via the engine output control device 62. Specifically, an electronic throttle valve provided in the intake pipe of the engine 12 so that the output of the engine 12 becomes a target engine output (target rotational speed or target output torque) calculated by the electronic control unit 50.
- Drive signal to the throttle actuator for operating the opening degree ⁇ TH of the engine, a fuel supply amount signal for controlling the fuel supply amount to the intake pipe or the like by the fuel injection device, and an ignition signal for instructing the ignition timing of the engine 12 by the ignition device Are supplied to the engine output control device 62 via the electronic control device 52.
- the first electric motor drive control unit 74 basically controls the operation of the first electric motor MG1 through the first inverter 64. Specifically, a battery (not shown) and the first electric motor MG1 are set so that the output of the first electric motor MG1 becomes a target first electric motor output (target rotational speed or target output torque) calculated by the electronic control unit 50. A signal for controlling input / output of electric energy between the first inverter 64 and the second inverter 64 is supplied to the first inverter 64 via the electronic control unit 54.
- the second electric motor drive control unit 76 basically controls the operation of the second electric motor MG2 via the second inverter 66. Specifically, a battery (not shown) and the second electric motor MG2 are set so that the output of the second electric motor MG2 becomes the target second electric motor output (target rotational speed or target output torque) calculated by the electronic control unit 50. A signal for controlling input / output of electric energy between the second inverter 66 and the second inverter 66 is supplied via the electronic control unit 54.
- the hybrid drive control unit 70 performs hybrid drive control by the drive device 10 via the engine drive control unit 72, the first electric motor drive control unit 74, and the second electric motor drive control unit 76. For example, it is transmitted to the wheel 14 based on an accelerator operation amount A CC detected by an accelerator operation amount sensor and a vehicle speed V detected by a vehicle speed sensor from a map (not shown) that is predetermined and stored in a storage device.
- the required driving force F req which is a target value of the driving force to be calculated is calculated, and the engine 12 and the first electric motor are configured so as to operate with low fuel consumption and a small amount of exhaust gas according to the calculated required driving force F req.
- a required output is generated from at least one of MG1 and second electric motor MG2.
- the engine 12 is stopped and a motor travel mode (EV mode) using at least one of the first electric motor MG1 and the second electric motor MG2 as a drive source, and the power is mechanically generated exclusively using the engine 12 as a drive source.
- a motor travel mode (EV mode) using at least one of the first electric motor MG1 and the second electric motor MG2 as a drive source
- the power is mechanically generated exclusively using the engine 12 as a drive source.
- an engine driving mode in which the vehicle travels by transmitting to the wheels 14, and a hybrid driving mode in which the engine 12 and the second electric motor MG2 (or the first electric motor MG1 in addition thereto) are driven together are driven. To establish it selectively.
- the hybrid drive control unit 70 performs a motor travel mode in which the engine 12 is stopped based on the battery SOC detected by the battery SOC sensor 58, and driving of the engine 12.
- Switching control between an engine running mode or a hybrid running mode, which is a running mode For example, when the battery SOC detected by the battery SOC sensor 58 is greater than a predetermined threshold value S bo , a motor travel mode that is a travel mode in which the engine 12 is stopped is established, while the battery SOC is When the value is equal to or less than the threshold value S bo , an engine travel mode or a hybrid travel mode that is a travel mode in which the engine 12 is driven is established.
- the travel mode switching control may be performed based on the accelerator operation amount A cc detected by the accelerator operation amount sensor and the vehicle speed V detected by the vehicle speed sensor.
- the lock mechanism operation control unit 78 controls the operation of the mesh clutch 46 which is a lock mechanism. Specifically, by controlling the hydraulic pressure Pbcr supplied from the hydraulic control circuit 48 to the actuator 46d, the engagement state of the meshing clutch 46, that is, the fixing of the crankshaft 26 of the engine 12 (fixing to the housing 28). Control the release of the fixing. For example, when the hybrid drive control unit 70 establishes a motor travel mode that is a travel mode in which the engine 12 is stopped, the hydraulic pressure Pbcr supplied from the hydraulic control circuit 48 to the actuator 46d is increased.
- the actuator 46d moves the sleeve 46c to a state in which the sleeve 46c is engaged with the meshing teeth of both the engine side member 46a and the housing side member 46b. That is, the operation of the meshing clutch 46 is controlled so that the crankshaft 26 of the engine 12 is fixed to the housing 28.
- the hydraulic control circuit 48 supplies the actuator 46d.
- the actuator 46d moves the sleeve 46c to a state where it is engaged with the meshing teeth of the housing side member 46b but not the meshing teeth of the engine side member 46a. That is, the operation of the meshing clutch 46 is controlled so as to release the fixing of the crankshaft 26 to the housing 28.
- FIGS. 4 and 5 are collinear diagrams that can relatively represent the rotational speeds of the three rotating elements in the planetary gear unit 24, which is a differential mechanism, and vertical lines Y1 to Y3 are shown from the left in the drawing.
- the vertical line Y1 represents the rotational speed of the sun gear S as the first rotational element connected to the first electric motor MG1
- the vertical line Y2 represents the rotational speed of the carrier CA as the second rotational element connected to the engine 12.
- the vertical line Y3 indicates the rotational speed of the ring gear R, which is a third rotating element connected to the second electric motor MG2 via the large-diameter gear 36, the second output gear 44, and the like.
- FIG. 4 shows the relative speed of each rotary element in the motor travel mode, which is a travel mode in which the engine 12 is not driven (the engine 12 is stopped), and FIG. 5 shows the travel in which the engine 12 is driven.
- the relative speeds of the rotating elements in the engine driving mode or the hybrid driving mode, which are modes, are shown.
- the planetary gear device 24 includes a sun gear S as a first rotating element, a second rotating element, a carrier CA as an input rotating member, and a third rotating gear. This corresponds to a differential mechanism including a rotating element and a ring gear R as an output rotating member.
- the sun gear S as the first rotating element is connected to the first electric motor MG1
- the carrier CA as the second rotating element is connected to the engine 12
- the ring gear R as the third rotating element is the large-diameter gear.
- 36, the second output gear 44 and the like so as to be able to transmit power to the second electric motor MG2, so that the planetary gear unit 24, the first electric motor MG1, and the second electric motor MG2 are the main components.
- a step transmission unit is configured.
- the engine 12 is not driven and its rotational speed is zero.
- the engagement mechanism 46 is operated by the lock mechanism operation control unit 78 via the hydraulic control circuit 48 so as to fix the crankshaft 26 to the housing 28, and the rotation of the engine 12. Is locked.
- the power running torque of the second electric motor MG2 is transmitted to the wheels 14 as the driving force in the vehicle forward direction.
- the reaction torque of the first electric motor MG1 is transmitted to the wheels 14 as a driving force in the vehicle forward direction. That is, the rotational speed of the ring gear R corresponding to the output rotating member is increased in the positive rotation direction by the reaction force torque of the first electric motor MG1.
- the change from the broken line to the solid line in FIG. 4 indicates that when the rotational speed of the first electric motor MG1 is lowered from the value indicated by the broken line to the value indicated by the solid line, the rotational speed of the second electric motor MG2 (the rotational speed of the ring gear R) is reduced. It shows how it is raised. That is, in the driving device 10, the crankshaft 26 of the engine 12 is locked by the meshing clutch 46, so that the first electric motor MG1 and the second electric motor MG2 can be used together as a driving source for traveling. For example, in a so-called plug-in hybrid vehicle that can store power from a household power supply to a battery, it is possible to achieve high output of motor travel.
- the operation of the drive device 10 in the engine travel mode or the hybrid travel mode will be described with reference to FIG. 5.
- the first electric motor MG1 is caused to function as a generator.
- the rotational speed of the ring gear R output shaft speed
- N E of the engine 12 It can be changed (in a stepless manner). That is, a control for example fuel consumption rotation speed N E of the engine 12 is set to the best rotation speed, it can be executed by the power running control or reactive control of the first electric motor MG1.
- This type of hybrid is called a mechanical distribution or split type.
- a meshing clutch 46 (dog clutch) as a lock mechanism for fixing the crankshaft 26 of the engine 12 to the housing 28 as in the driving device 10, the crankshaft 26 with respect to the housing 28. While there is an advantage that it is possible to suppress the occurrence of drag, on the transition from the locked state in which the crankshaft 26 is fixed to the housing 28 to the released state in which the fixing is released due to the configuration of the meshing clutch 46 as described above, A relatively large driving force is required for the operation of the meshing clutch 46. That is, depending on the magnitude of the torque (reaction force torque) of the first electric motor MG1, torque in the reverse direction of the engine 12 is generated with respect to the crankshaft 26 as shown by a one-dot chain line in FIG.
- the crankshaft 26 is fixed to the housing 28 by the meshing clutch 46 that is a locking mechanism, and at least the first The torque T of the first electric motor MG1 is switched from the EV traveling mode in which the electric motor MG1 is used as a driving source to transmit the power to the ring gear R as the third rotating element to the state in which the engagement by the meshing clutch 46 is released. Control to reduce the absolute value of MG1 .
- the lock mechanism operation control unit 78 performs control for releasing the fixation by the meshing clutch 46.
- the engine 12 is rotated forward at the time of switching from the state in which the crankshaft 26 is fixed to the housing 28 by the meshing clutch 46 to the state in which the locking by the meshing clutch 46 is released.
- control for releasing the fixation by the meshing clutch 46 is performed. That is, in the state where the first electric motor MG1 is used as a drive source and the power is transmitted to the ring gear R which is a third rotating element, the torque T MG1 of the first electric motor MG1 is a reaction force in the direction of rotating the engine 12 in the reverse direction.
- the lock mechanism operation control unit 78 performs control to release the engagement by the meshing clutch 46.
- the torque T MG1 of the first electric motor MG1 is a reaction force torque as shown in FIG. 6, after the control to decrease the reaction force torque (control to increase the torque to the power running side), the meshing is performed. Control to release the fixing by the clutch 46 is performed.
- the first electric motor drive control unit 74 is switched from a state in which the crankshaft 26 is fixed to the housing 28 by the meshing clutch 46 to a state in which the locking by the meshing clutch 46 is released.
- control is performed so that the absolute value of the torque T MG2 of the second electric motor MG2 is not reduced.
- a temporary decrease in output torque (output torque) appearing on the wheel 14 side can be suppressed, and driving force is lost. Can be suitably prevented.
- the lock mechanism operation control unit 78 includes a lock release determination unit 80.
- the lock release determination unit 80 is configured to switch the first electric motor MG1 from the state in which the crankshaft 26 is fixed to the housing 28 to the state in which the engagement by the engagement clutch 46 is released. Based on the change in the rotational speed of the crankshaft 26 of the engine 12 by torque control, the release of fixing of the crankshaft 26 to the housing 28 is detected.
- the engine speed sensor 56 based on the change in the engine rotational speed N E detected to detect that the fixed relative to the housing 28 of the crankshaft 26 is released.
- the rotation of the first electric motor MG1 is detected by the engine rotation speed sensor 56 by changing from a negative rotation to a positive rotation (rotation in a direction in which the engine 12 is rotated forward). If the engine rotational speed N E becomes a predetermined threshold value N bo (> 0) or detects that the fixed relative to the housing 28 of the crankshaft 26 is released. In the control of this embodiment, such detection is performed before starting the engine 12 and after the detection is performed (after the release of the fixing of the crankshaft 26 to the housing 28 is detected). The sequence control relating to the start of the engine 12 is sequentially performed.
- FIG. 8 is a time chart for explaining the control of this embodiment by the electronic control unit 50.
- the control shown in FIG. 8 corresponds to the control at the time of transition from the travel mode in which the engine 12 is not driven to the travel mode in which the engine 12 is driven, and is supplied to the actuator 46d of the meshing clutch 46.
- hydraulic PBCR clutch oil pressure
- PBCR clutch oil pressure
- the battery SOC is larger than the threshold value Sbo .
- the battery SOC becomes a value smaller than the threshold value S bo , and switching from the travel mode in which the engine 12 is not driven to the travel mode in which the engine 12 is driven is performed. Determined. That is, it is determined that the engine 12 has been started, and the command is output.
- the reaction torque of the first electric motor MG1 is reduced, and preferably is made substantially zero as shown in FIG.
- the torque of the second electric motor MG2 is not reduced and is maintained at a value before the time point t1.
- the hydraulic Pbcr is then gradually decreased to zero from the hydraulic P 1 supplied to the actuator 46d of the clutch hydraulic namely the meshing clutch 46.
- the sleeve 46c of the meshing clutch 46 is pulled out of the meshing teeth of the engine side member 46a, and is engaged with only the meshing teeth of the housing side member 46b. That is, the engagement of the crankshaft 26 to the housing 28 by the meshing clutch 46 is released.
- the torque of the first electric motor MG1 is increased to a predetermined value T 1 (> 0) and maintained until time point t3.
- the rotation speed of the first electric motor MG1 is gradually increased from the time point t2 to the time point t3, and accordingly, the rotation speed of the crankshaft 26 of the engine 12 is gradually increased.
- the engine 12 is ignited and thereafter the autonomous operation of the engine 12 is started.
- the torque of the first electric motor MG1 is returned to the value before the start of control (before time t1). By such control, it is possible to suppress the reverse rotation of the engine 12 and realize a suitable start.
- FIG. 9 is a flowchart for explaining a main part of the hybrid drive control of the drive device 10 by the electronic control device 50, which is repeatedly executed at a predetermined cycle.
- step (hereinafter, step is omitted) S1 it is determined whether or not the battery SOC detected by the battery SOC sensor 58 is smaller than a predetermined threshold value Sbo . If the determination in S1 is negative, the routine is terminated accordingly, but if the determination in S1 is affirmative, the engine travel that drives the engine 12 as the travel mode of the drive device 10 is performed. After the mode is set and the start command for the engine 12 is output, in S2, the absolute value of the torque of the first electric motor MG1 is reduced, for example, the torque is made substantially zero. Next, in S3, the release control of the mesh clutch 46 is started, and the gradual decrease of the hydraulic pressure Pbcr supplied to the actuator 46d is started.
- the engine speed detected by the engine speed sensor 56 determines whether or not the disengagement of the mesh clutch 46 is completed, that is, whether or not the crankshaft 26 is fixed to the housing 28. It is determined based on the change in N E. For example, after the prescribed time since the affirmative determination at S1, whether or not the engine rotational speed N E detected by the engine rotational speed sensor 56 becomes a predetermined threshold value N bo more is determined. When the determination at S4 is negative, the processing after S2 is executed again. However, when the determination at S4 is affirmative, the increase in the rotational speed N MG1 of the first electric motor MG1 is increased at S5. Be started. Next, in S6, start control of the engine 12 is started.
- FIG. 10 is a skeleton diagram illustrating the configuration of another hybrid vehicle drive device 90 to which the present invention is preferably applied.
- the drive device 90 shown in FIG. 10 includes a friction clutch 92 as a lock mechanism for fixing the crankshaft 26 of the engine 12 to the housing 28 which is a non-rotating member.
- the friction clutch 92 is preferably, for example, a multi-plate hydraulic friction engagement device that is controlled by a hydraulic actuator, and is preferably a wet friction brake.
- the engagement state of the friction clutch 92 is controlled between engagement and release according to the hydraulic pressure Pbcr supplied from the hydraulic control circuit 48. Further, it may be configured to be slip-engaged (half-engaged) as necessary.
- the crankshaft 26 of the engine 12 can be rotated relative to the housing 28 which is a non-rotating member.
- the friction clutch 92 is engaged, the crankshaft 26 of the engine 12 is not allowed to rotate relative to the housing 28. That is, the crankshaft 26 of the engine 12 is fixed (locked) to the housing 28 by the engagement of the friction clutch 92.
- the lock mechanism operation control unit 78 provided in the electronic control device 50 of the drive device 90 controls the operation of the friction clutch 92 that is a lock mechanism. Specifically, by controlling the hydraulic pressure Pbcr supplied from the hydraulic control circuit 48 to the hydraulic actuator of the friction clutch 92, the friction clutch 92 is engaged, that is, the crankshaft 26 of the engine 12 is fixed (housing). 28) or release of the fixation. In addition, the hybrid drive control unit 70 and the lock mechanism operation control unit 78 perform control when the friction clutch 92 is switched as in the above-described embodiment.
- the friction clutch 92 switches from the state in which the crankshaft 26 is fixed to the housing 28 to the state in which the fixing by the friction clutch 92 is released, the absolute value of the torque T MG1 of the first electric motor MG1.
- Control to reduce the Preferably, at the time of such switching, after the torque T MG1 of the first electric motor MG1 is changed in the direction in which the engine 12 is normally rotated, control for releasing the fixation by the friction clutch 92 is performed.
- the first motor drive control unit 74 performs control to decrease the absolute value of the torque T MG1 of the first motor MG1, the second motor drive control unit 76 is performed.
- control is performed to maintain or increase the absolute value of the torque T MG2 of the second electric motor MG2.
- the determination by the unlock determination unit 80 described above is performed at the time of such switching.
- the rotational speed N MG1 of the first electric motor MG1 is gradually increased before the release of the friction clutch 92 is completed at the time of switching. Is called. That is, at the time of switching from the state in which the crankshaft 26 is fixed (completely engaged) to the housing 28 by the friction clutch 92 to the state in which the fixing by the friction clutch 92 is released, first, the first motor drive after the control to reduce the absolute value of the torque T MG1 of the the control unit 74 first electric motor MG1 is performed, release control of the friction clutch 92 is started by the lock mechanism controller 78.
- the first motor drive control unit 74 gradually increases the rotational speed N MG1 of the first motor MG1. Control is performed.
- the start control of the engine 12 is suppressed while suppressing the reverse rotation of the engine 12 by performing the control to gradually increase the rotation speed N MG1 of the first electric motor MG1 in parallel with the release control of the friction clutch 92. Can be completed as soon as possible.
- FIG. 11 is a flowchart for explaining a main part of the hybrid drive control of the drive device 90 by the electronic control device 50, which is repeatedly executed at a predetermined cycle.
- the steps common to the control in FIG. 9 described above are denoted by the same reference numerals and description thereof is omitted.
- the release control of the friction clutch 92 is started in S3 following the process of S2 described above, and the gradual decrease of the hydraulic pressure Pbcr supplied to the hydraulic actuator is started.
- S5 an increase in the rotational speed N MG1 of the first electric motor MG1 is started.
- the crankshaft 26 as the output shaft is fixed to the housing 28 as the non-rotating member by the meshing clutch 46 through the friction clutch 92 as the lock mechanism, and the first electric motor MG1.
- the absolute value of the torque T MG1 of the first electric motor MG1 is reduced at the time of switching from the state in which power is transmitted to the ring gear R that is the third rotating element to the state in which the locking by the lock mechanism is released.
- the fixing by the locking mechanism is released, so even if the fixing by the locking mechanism is released at an early stage due to, for example, variation in response of brake actuators provided in the locking mechanism, the engine 12 Reverse rotation can be suitably suppressed. That is, it is possible to provide an electronic control device 50 for a hybrid vehicle that suppresses reverse rotation of the engine 12 when the crankshaft 26 is unlocked.
- the torque T MG1 of the first electric motor MG1 is the direction in which the engine 12 is rotated in the reverse direction.
- the reverse rotation of the engine 12 is likely to occur, for example, when the fixing due to is released early, the reverse rotation of the engine 12 when the crankshaft 26 is unlocked can be suitably suppressed.
- the second electric motor MG2 is connected to the power transmission path between the ring gear R as the third rotating element and the wheel 14 as the driving wheel, and the torque T of the first electric motor MG1 at the time of the switching.
- the absolute value of MG1 is reduced, because the absolute value of the torque T MG2 of the second electric motor MG2 are those to increased maintenance, to the wheel 14 side at the time of unlocking the crankshaft 26 A decrease in output torque can be suitably suppressed.
- the release of the fixing of the crankshaft 26 to the housing 28 is detected based on the change in the rotational speed of the crankshaft 26 of the engine 12 by the torque control of the first electric motor MG1.
- the lock of the shaft 26 is released, it can be detected in a suitable and practical manner that the lock has been released.
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Abstract
Description
Claims (5)
- 第1回転要素、入力回転部材であってエンジンに連結された第2回転要素、及び出力回転部材である第3回転要素を備えた差動機構と、前記第1回転要素に連結された電動機と、前記エンジンの出力軸を非回転部材に対して固定するロック機構とを、備えたハイブリッド車両の制御装置であって、
前記ロック機構により前記出力軸が非回転部材に対して固定され且つ前記電動機により前記第3回転要素に動力を伝達している状態から、該ロック機構による固定が解除される状態への切換時に、前記電動機のトルクの絶対値が減少させられた後に該ロック機構による固定が解除されることを特徴とするハイブリッド車両の制御装置。 - 前記電動機により前記第3回転要素に動力を伝達している状態においては、該電動機のトルクは前記エンジンを逆回転させる方向とされたものである請求項1に記載のハイブリッド車両の制御装置。
- 前記切換時に、前記電動機のトルクが前記エンジンを正転させる方向に変化させられた後に前記ロック機構による固定が解除されるものである請求項1又は2に記載のハイブリッド車両の制御装置。
- 前記第3回転要素と駆動輪との間の動力伝達経路に第2電動機が接続されたものであり、
前記切換時に、前記電動機のトルクの絶対値が減少させられる際には、前記第2電動機のトルクの絶対値は維持乃至増加させられるものである請求項1から3の何れか1項に記載のハイブリッド車両の制御装置。 - 前記切換時に、前記電動機のトルク制御による前記エンジンの出力軸の回転速度変化に基づいて該出力軸の前記非回転部材に対する固定の解除を検出するものである請求項1から4の何れか1項に記載のハイブリッド車両の制御装置。
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US14/344,498 US9180865B2 (en) | 2011-09-12 | 2011-09-12 | Hybrid vehicle control apparatus |
CN201180073348.8A CN103781684B (zh) | 2011-09-12 | 2011-09-12 | 混合动力车辆的控制装置 |
JP2013533364A JP5742948B2 (ja) | 2011-09-12 | 2011-09-12 | ハイブリッド車両の制御装置 |
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WO2015004818A1 (ja) * | 2013-07-11 | 2015-01-15 | トヨタ自動車株式会社 | ハイブリッド車両の制御装置 |
JP2015016781A (ja) * | 2013-07-11 | 2015-01-29 | トヨタ自動車株式会社 | ハイブリッド車両の制御装置 |
JP2015112937A (ja) * | 2013-12-10 | 2015-06-22 | トヨタ自動車株式会社 | ハイブリッド駆動装置の制御装置 |
JP2015116861A (ja) * | 2013-12-17 | 2015-06-25 | トヨタ自動車株式会社 | ハイブリッド車の動力伝達装置 |
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CN103781684A (zh) | 2014-05-07 |
JPWO2013038481A1 (ja) | 2015-03-23 |
US20140371964A1 (en) | 2014-12-18 |
US9180865B2 (en) | 2015-11-10 |
JP5742948B2 (ja) | 2015-07-01 |
CN103781684B (zh) | 2016-08-17 |
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