WO2013145091A1 - ハイブリッド車両の駆動制御装置 - Google Patents
ハイブリッド車両の駆動制御装置 Download PDFInfo
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- WO2013145091A1 WO2013145091A1 PCT/JP2012/057810 JP2012057810W WO2013145091A1 WO 2013145091 A1 WO2013145091 A1 WO 2013145091A1 JP 2012057810 W JP2012057810 W JP 2012057810W WO 2013145091 A1 WO2013145091 A1 WO 2013145091A1
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- Prior art keywords
- electric motor
- engine
- rotating element
- differential mechanism
- clutch
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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
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/005—Aiding engine start by starting from a predetermined position, e.g. pre-positioning or reverse rotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—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 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 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
- B60W2710/02—Clutches
- B60W2710/021—Clutch engagement state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
-
- 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
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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
-
- 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 an improvement of a drive control device for a hybrid vehicle.
- a hybrid vehicle including at least one electric motor that functions as a drive source is known.
- this is the vehicle described in Patent Document 1.
- the brake is provided to fix the output shaft of the internal combustion engine to the non-rotating member, and according to the traveling state of the vehicle. By controlling the engagement state of the brake, it is possible to improve the energy efficiency of the vehicle and to travel according to the driver's request.
- JP 2008-265600 A Japanese Patent No. 4038183
- the present invention has been made against the background of the above circumstances, and an object of the present invention is to provide a drive control device for a hybrid vehicle that adjusts a crank position when starting an engine and suppresses occurrence of problems such as a start shock. It is to provide.
- the gist of the first aspect of the present invention is that a first differential mechanism and a second differential mechanism having four rotating elements as a whole, and these four rotating elements are respectively connected.
- An element is selectively connected via a clutch, and the rotating element of the first differential mechanism or the second differential mechanism to be engaged by the clutch is selected via a brake for a non-rotating member.
- the hybrid vehicle drive control apparatus is characterized in that the crank position of the engine is adjusted by at least one of the first electric motor and the second electric motor according to the state of the vehicle.
- the first differential mechanism and the second differential mechanism having four rotation elements as a whole, the engine, the first electric motor, Two electric motors and an output rotating member, and one of the four rotating elements is selected by selecting the rotating element of the first differential mechanism and the rotating element of the second differential mechanism via a clutch.
- the rotating element of the first differential mechanism or the second differential mechanism to be engaged by the clutch is selectively connected to the non-rotating member via a brake. Since it is a drive control device and adjusts the crank position of the engine by at least one of the first electric motor and the second electric motor according to the state of the vehicle, for example, a relatively large torque is applied to cranking.
- the gist of the second invention subordinate to the first invention is that when the torque required for adjusting the crank position of the engine is equal to or greater than a predetermined threshold value, the clutch is engaged and the brake is applied.
- the crank position of the engine is adjusted by the first electric motor and the second electric motor in a state where the engine is released.
- the clutch is released. In this state, the crank position of the engine is adjusted by the first electric motor.
- the crank position of the engine can be adjusted suitably by using both the first electric motor and the second electric motor,
- the crank position adjustment can be suitably realized without performing unnecessary hydraulic control by adjusting the crank position exclusively by the first electric motor.
- the gist of the third invention subordinate to the first to second inventions is that the crank position adjustment of the engine is prohibited when the allowable output of the drive battery is less than a predetermined threshold value. Is. If it does in this way, it can control suitably that electric power required for the start of the engine is insufficient.
- 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 that the first differential mechanism is A second rotating element coupled to the first electric motor, a second rotating element coupled to the engine, and a third rotating element coupled to the output rotating member.
- the mechanism includes a first rotating element, a second rotating element, and a third rotating element connected to the second electric motor, and any one of the second rotating element and the third rotating element is the first differential mechanism.
- the clutch is coupled to the third rotating element in the first differential mechanism, the second rotating element in the first differential mechanism, and the second rotating element and the third rotating element in the second differential mechanism.
- the one that is not connected to the third rotating element in one differential mechanism The brake is selectively engaged with the rolling element, and the brake is coupled to the third rotating element in the first differential mechanism among the second rotating element and the third rotating element in the second differential mechanism.
- the non-rotating member is selectively engaged with the non-rotating element. If it does in this way, in a practical hybrid vehicle drive device, the crank position can be adjusted when starting the engine, and the occurrence of problems such as a start shock can be suppressed.
- FIG. 1 is a skeleton diagram illustrating a configuration of a hybrid vehicle drive device to which the present invention is preferably applied. It is a figure explaining the principal part of the control system provided in order to control the drive of the drive device of FIG.
- FIG. 2 is an engagement table showing clutch and brake engagement states in each of five types of travel modes established in the drive device of FIG. 1.
- FIG. 4 is a collinear diagram that can represent the relative relationship of the rotational speeds of the respective rotary elements on a straight line in the drive device of FIG. 1, and is a diagram corresponding to modes 1 and 3 of FIG. 3.
- FIG. 1 is a skeleton diagram illustrating a configuration of a hybrid vehicle drive device to which the present invention is preferably applied. It is a figure explaining the principal part of the control system provided in order to control the drive of the drive device of FIG.
- FIG. 2 is an engagement table showing clutch and brake engagement states in each of five types of travel modes established in the drive device of FIG. 1.
- FIG. 4 is a collinear diagram
- FIG. 4 is a collinear diagram that can represent the relative relationship of the rotation speeds of the respective rotary elements on a straight line in the drive device of FIG. 1, corresponding to mode 2 of FIG. 3.
- FIG. 4 is a collinear diagram that can represent the relative relationship of the rotational speeds of the respective rotary elements on a straight line in the drive device of FIG. 1, corresponding to mode 4 of FIG. 3.
- FIG. 4 is a collinear diagram that can represent the relative relationship of the rotational speeds of the respective rotary elements on a straight line in the drive device of FIG. 1, corresponding to mode 5 of FIG. 3. It is a functional block diagram explaining the principal part of the control function with which the electronic control apparatus of FIG. 2 was equipped.
- FIG. 4 is a collinear diagram that can represent the relative relationship of the rotation speeds of the respective rotary elements on a straight line in the drive device of FIG. 1, corresponding to mode 2 of FIG. 3.
- FIG. 3 is a collinear diagram illustrating crank position adjustment control in the drive device of FIG. 1 by the electronic control device of FIG. 2. It is a figure which shows an example of the relationship between the rotation angle position of a crankshaft used for the crank position adjustment by the electronic controller of FIG. 2, and the torque required for the crank position adjustment of the crankshaft. It is a flowchart explaining the principal part of an example of the crank position adjustment control by the electronic controller of FIG. It is a skeleton diagram explaining the composition of the other hybrid vehicle drive device to which the present invention is applied suitably. It is a skeleton diagram explaining the composition of still another hybrid vehicle drive device to which the present invention is preferably applied.
- FIG. 6 is a collinear diagram illustrating the configuration and operation of still another hybrid vehicle drive device to which the present invention is preferably applied.
- FIG. 6 is a collinear diagram illustrating the configuration and operation of still another hybrid vehicle drive device to which the present invention is preferably applied.
- FIG. 6 is a collinear diagram illustrating the configuration and operation of still another hybrid vehicle drive device to which the present invention is preferably applied.
- FIG. 6 is a collinear diagram illustrating the configuration and operation of still another hybrid vehicle drive device to which the present invention is preferably applied.
- FIG. 6 is a collinear diagram illustrating the configuration and operation of still another hybrid vehicle drive device to which the present invention is preferably applied.
- FIG. 6 is a collinear diagram illustrating the configuration and operation of still another hybrid vehicle drive device to which the present invention is preferably applied.
- the first differential mechanism and the second differential mechanism have four rotation elements as a whole when the clutch is engaged.
- the first differential mechanism and the second differential mechanism are: In the state in which the plurality of clutches are engaged, there are four rotating elements as a whole.
- the present invention relates to a first differential mechanism and a second differential mechanism that are represented as four rotating elements on the nomographic chart, an engine connected to each of the four rotating elements, a first electric motor, A second electric motor, and an output rotating member, wherein one of the four rotating elements includes a rotating element of the first differential mechanism and a rotating element of the second differential mechanism via a clutch.
- a hybrid vehicle that is selectively connected and a rotating element of the first differential mechanism or the second differential mechanism that is to be engaged by the clutch is selectively connected to a non-rotating member via a brake. It is suitably applied to the drive control apparatus.
- the clutch and the brake are preferably hydraulic engagement devices whose engagement state is controlled (engaged or released) according to the hydraulic pressure, for example, a wet multi-plate friction engagement device.
- a meshing engagement device that is, a so-called dog clutch (meshing clutch) may be used.
- the engagement state may be controlled (engaged or released) according to an electrical command, such as an electromagnetic clutch or a magnetic powder clutch.
- one of a plurality of travel modes is selectively established according to the engagement state of the clutch and the brake.
- the operation of the engine is stopped and the brake is engaged and the clutch is released in an EV traveling mode in which at least one of the first electric motor and the second electric motor is used as a driving source for traveling.
- mode 1 is established
- mode 2 is established by engaging both the brake and the clutch.
- the mode is set when the brake is engaged and the clutch is released.
- Mode 4 is established when the brake is released and the clutch is engaged
- mode 5 is established when both the brake and the clutch are released.
- each rotating element in each of the first differential mechanism and the second differential mechanism when the clutch is engaged and the brake is released.
- the arrangement order indicates the first rotation in the first differential mechanism when the rotation speeds corresponding to the second rotation element and the third rotation element in each of the first differential mechanism and the second differential mechanism are superimposed.
- 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 of the present embodiment is a device for horizontal use that is preferably used in, for example, an FF (front engine front wheel drive) type vehicle and the like, and an engine 12, which is a main power source,
- the first electric motor MG1, the second electric motor MG2, the first planetary gear device 14 as a first differential mechanism, and the second planetary gear device 16 as a second differential mechanism are provided on a common central axis CE.
- the driving device 10 is configured substantially symmetrically with respect to the central axis CE, and the lower half of the central line is omitted in FIG. The same applies to each of the following embodiments.
- the engine 12 is, for example, an internal combustion engine such as a gasoline engine that generates driving force by combustion of fuel such as gasoline injected in a cylinder.
- the first electric motor MG1 and the second electric motor MG2 are preferably so-called motor generators each having a function as a motor (engine) for generating driving force and a generator (generator) for generating reaction force.
- Each stator (stator) 18, 22 is fixed to a housing (case) 26 that is a non-rotating member, and the rotor (rotor) 20, 24 is provided on the inner peripheral side of each stator 18, 22. Has been.
- the first planetary gear unit 14 is a single pinion type planetary gear unit having a gear ratio of ⁇ 1, and serves as a second rotating element that supports the sun gear S1 and the pinion gear P1 as the first rotating element so as to be capable of rotating and revolving.
- a ring gear R1 as a third rotating element that meshes with the sun gear S1 via the carrier C1 and the pinion gear P1 is provided as a rotating element (element).
- the second planetary gear device 16 is a single pinion type planetary gear device having a gear ratio of ⁇ 2, and serves as a second rotating element that supports the sun gear S2 and the pinion gear P2 as the first rotating element so as to be capable of rotating and revolving.
- a ring gear R2 as a third rotating element that meshes with the sun gear S2 via the carrier C2 and the pinion gear P2 is provided as a rotating element (element).
- the sun gear S1 of the first planetary gear unit 14 is connected to the rotor 20 of the first electric motor MG1.
- the carrier C1 of the first planetary gear unit 14 is connected to an input shaft 28 that is rotated integrally with the crankshaft 12a of the engine 12.
- the input shaft 28 is centered on the central axis CE.
- the direction of the central axis of the central axis CE is referred to as an axial direction (axial direction) unless otherwise distinguished.
- the ring gear R1 of the first planetary gear device 14 is connected to an output gear 30 that is an output rotating member, and is also connected to the ring gear R2 of the second planetary gear device 16.
- the sun gear S2 of the second planetary gear device 16 is connected to the rotor 24 of the second electric motor MG2.
- the driving force output from the output gear 30 is transmitted to a pair of left and right driving wheels (not shown) via a differential gear device and an axle (not shown).
- torque input to the drive wheels from the road surface of the vehicle is transmitted (input) from the output gear 30 to the drive device 10 via the differential gear device and the axle.
- a mechanical oil pump 32 such as a vane pump is connected to an end portion of the input shaft 28 opposite to the engine 12, and an original pressure of a hydraulic control circuit 60 or the like to be described later when the engine 12 is driven.
- the hydraulic pressure is output.
- an electric oil pump driven by electric energy may be provided.
- the carrier C1 of the first planetary gear device 14 and the carrier C2 of the second planetary gear device 16 are selectively engaged between the carriers C1 and C2 (between the carriers C1 and C2).
- a clutch CL is provided.
- a brake BK for selectively engaging (fixing) the carrier C2 with respect to the housing 26 is provided between the carrier C2 of the second planetary gear device 16 and the housing 26 which is a non-rotating member.
- the clutch CL and the brake BK are preferably hydraulic engagement devices whose engagement states are controlled (engaged or released) according to the hydraulic pressure supplied from the hydraulic control circuit 60.
- a wet multi-plate friction engagement device or the like is preferably used, but a meshing engagement device, that is, a so-called dog clutch (meshing clutch) may be used.
- an engagement state may be controlled (engaged or released) according to an electrical command supplied from the electronic control device 40, such as an electromagnetic clutch or a magnetic powder clutch.
- the first planetary gear device 14 and the second planetary gear device 16 are arranged coaxially with the input shaft 28 (on the central axis CE), and , Are arranged at positions facing each other in the axial direction of the central axis CE. That is, with respect to the axial direction of the central axis CE, the first planetary gear device 14 is disposed on the engine 12 side with respect to the second planetary gear device 16. With respect to the axial direction of the central axis CE, the first electric motor MG1 is disposed on the engine 12 side with respect to the first planetary gear unit 14.
- the second electric motor MG1 is disposed on the opposite side of the engine 12 with respect to the second planetary gear device 16. That is, the first electric motor MG1 and the second electric motor MG2 are arranged at positions facing each other with the first planetary gear device 14 and the second planetary gear device 16 interposed therebetween with respect to the axial direction of the central axis CE. . That is, in the drive device 10, in the axial direction of the central axis CE, the first electric motor MG1, the first planetary gear device 14, the clutch CL, the second planetary gear device 16, the brake BK, Those components are arranged on the same axis in the order of the two electric motors MG2.
- FIG. 2 is a diagram for explaining a main part of a control system provided in the driving device 10 in order to control the driving of the driving device 10.
- the electronic control unit 40 shown in FIG. 2 includes a CPU, a ROM, a RAM, an input / output interface, and the like, and executes signal processing in accordance with a program stored in advance in the ROM while using a temporary storage function of the RAM.
- the microcomputer is a so-called microcomputer, and executes various controls related to driving of the drive device 10 including drive control of the engine 12 and hybrid drive control related to the first electric motor MG1 and the second electric motor MG2. That is, in this embodiment, the electronic control device 40 corresponds to a drive control device for a hybrid vehicle to which the drive device 10 is applied.
- the electronic control device 40 is configured as an individual control device for each control as required, such as for output control of the engine 12 and for operation control of the first electric motor MG1 and the second electric motor MG2.
- the electronic control device 40 is configured to be supplied with various signals from sensors, switches, and the like provided in each part of the driving device 10. That is, a signal representing an accelerator opening degree A CC which is an operation amount of an accelerator pedal (not shown) corresponding to a driver's output request amount by the accelerator opening sensor 42, and an engine which is the rotation speed of the engine 12 by the engine rotation speed sensor 44.
- a signal representing an accelerator opening degree A CC which is an operation amount of an accelerator pedal (not shown) corresponding to a driver's output request amount by the accelerator opening sensor 42
- an engine which is the rotation speed of the engine 12 by the engine rotation speed sensor 44.
- crank position sensor 52 A signal indicating the rotational angle position of the crankshaft 12a, by the engine temperature sensor 53 Coolant temperature to oil temperature or the like of the serial engine 12, a signal representative of the temperature Th E of the engine 12, and a signal or the like indicative of a charged capacity (charged state) SOC of the battery 55 by the battery SOC sensor 54, each of the above electronic control unit 40 To be supplied.
- the crank position sensor 52, the electrical angle and the like of the first electric motor MG1 may be used to detect the crank position P CR of the engine 12.
- the electronic control device 40 is configured to output an operation command to each part of the driving device 10. That is, as an engine output control command for controlling the output of the engine 12, a fuel injection amount signal for controlling a fuel supply amount to an intake pipe or the like by the fuel injection device, and an ignition timing (ignition timing) of the engine 12 by the ignition device.
- An ignition signal to be commanded, an electronic throttle valve drive signal supplied to the throttle actuator for operating the throttle valve opening ⁇ TH of the electronic throttle valve, and the like are output to an engine control device 56 that controls the output of the engine 12.
- the A command signal for commanding the operation of the first motor MG1 and the second motor MG2 is output to the inverter 58, and electric energy corresponding to the command signal is transmitted from the battery 55 via the inverter 58 to the first motor MG1 and the second motor MG2.
- the two electric motors MG2 are supplied to control the outputs (torques) of the first electric motor MG1 and the second electric motor MG2. Electric energy generated by the first electric motor MG1 and the second electric motor MG2 is supplied to the battery 55 via the inverter 58 and stored in the battery 55. That is, in the driving device 10, the battery 55 corresponds to a driving battery.
- a command signal for controlling the engagement state of the clutch CL and the brake BK is supplied to an electromagnetic control valve such as a linear solenoid valve provided in the hydraulic control circuit 60, and the hydraulic pressure output from the electromagnetic control valve is controlled.
- an electromagnetic control valve such as a linear solenoid valve provided in the hydraulic control circuit 60
- the hydraulic pressure output from the electromagnetic control valve is controlled.
- the drive device 10 functions as an electric differential unit that controls the differential state between the input rotation speed and the output rotation speed by controlling the operation state via the first electric motor MG1 and the second electric motor MG2.
- the electric energy generated by the first electric motor MG1 is supplied to the battery 55 and the second electric motor MG2 via the inverter 58.
- the main part of the power of the engine 12 is mechanically transmitted to the output gear 30, while a part of the power is consumed for power generation of the first electric motor MG 1 and is converted into electric energy there.
- the electric energy is supplied to the second electric motor MG2 through the inverter 58.
- the second electric motor MG2 is driven, and the power output from the second electric motor MG2 is transmitted to the output gear 30.
- Electrical path from conversion of part of the power of the engine 12 into electrical energy and conversion of the electrical energy into mechanical energy by related equipment from the generation of the electrical energy to consumption by the second electric motor MG2. Is configured.
- FIG. 3 is an engagement table showing the engagement states of the clutch CL and the brake BK in each of the five types of travel modes established in the drive device 10, wherein the engagement is “ ⁇ ” and the release is blank. Show. In each of the travel modes “EV-1” and “EV-2” shown in FIG. 3, the operation of the engine 12 is stopped, and at least one of the first electric motor MG1 and the second electric motor MG2 is used for traveling. This is an EV travel mode used as a drive source.
- HV-1”, “HV-2”, and “HV-3” all drive the engine 12 as a driving source for traveling, for example, and the first motor MG1 and the second motor MG2 as required.
- This is a hybrid travel mode for driving or generating power.
- a reaction force may be generated by at least one of the first electric motor MG1 and the second electric motor MG2, or may be idled in an unloaded state.
- the operation of the engine 12 is stopped, and in the EV traveling mode in which at least one of the first electric motor MG ⁇ b> 1 and the second electric motor MG ⁇ b> 2 is used as a driving source for traveling.
- mode 1 travel mode 1
- 2 travel mode 2
- the brake BK is engaged.
- HV-1 which is mode 3 (travel mode 3) by releasing the clutch CL
- mode 4 travel mode 4
- HV-2 is established
- HV-3 which is mode 5 (travel mode 5) is established by releasing both the brake BK and the clutch CL.
- FIGS. 4 to 7 show the rotation elements of the driving device 10 (the first planetary gear device 14 and the second planetary gear device 16) that have different coupling states depending on the engagement states of the clutch CL and the brake BK.
- FIG. 2 shows a collinear chart that can represent the relative relationship of rotational speed on a straight line, showing the relative relationship of the gear ratio ⁇ of the first planetary gear device 14 and the second planetary gear device 16 in the horizontal axis direction, It is a two-dimensional coordinate which shows a relative rotational speed in an axial direction.
- the rotational speeds of the output gears 30 when the vehicle moves forward are represented as positive directions (positive rotations).
- a horizontal line X1 indicates zero rotation speed.
- the solid line Y1 indicates the sun gear S1 (first electric motor MG1) of the first planetary gear unit 14, the broken line Y2 indicates the sun gear S2 (second electric motor MG2) of the second planetary gear unit 16,
- the solid line Y3 is the carrier C1 (engine 12) of the first planetary gear unit 14, the broken line Y3 'is the carrier C2 of the second planetary gear unit 16, and the solid line Y4 is the ring gear R1 (output gear 30) of the first planetary gear unit 14.
- the broken line Y4 ′ indicates the relative rotational speed of each ring gear R2 of the second planetary gear unit 16.
- the relative rotational speeds of the three rotating elements in the first planetary gear device 14 are indicated by a solid line L1
- the relative rotational speeds of the three rotating elements in the second planetary gear device 16 are indicated by solid lines L1.
- Each is indicated by a broken line L2.
- the intervals between the vertical lines Y1 to Y4 (Y2 to Y4 ′) are determined according to the gear ratios ⁇ 1 and ⁇ 2 of the first planetary gear device 14 and the second planetary gear device 16. That is, regarding the vertical lines Y1, Y3, Y4 corresponding to the three rotating elements in the first planetary gear device 14, the space between the sun gear S1 and the carrier C1 corresponds to 1, and the carrier C1 and the ring gear R1 The interval corresponds to ⁇ 1.
- the gear ratio ⁇ 2 of the second planetary gear device 16 is preferably larger than the gear ratio ⁇ 1 of the first planetary gear device 14 ( ⁇ 2> ⁇ 1).
- EV-1 shown in FIG. 3 corresponds to mode 1 (travel mode 1) in the drive device 10, and preferably the operation of the engine 12 is stopped and the second electric motor MG2 is stopped. Is an EV traveling mode used as a driving source for traveling.
- FIG. 4 is a collinear diagram corresponding to this mode 1, and will be described using this collinear diagram.
- the clutch CL is released, the carrier C1 and the second planetary gear device 14 of the first planetary gear unit 14 are disengaged.
- the planetary gear device 16 can rotate relative to the carrier C2.
- Engagement of the brake BK causes the carrier C2 of the second planetary gear device 16 to be connected (fixed) to the housing 26, which is a non-rotating member, so that its rotational speed is zero.
- the rotation direction of the sun gear S2 and the rotation direction of the ring gear R2 are opposite to each other, and negative torque (torque in the negative direction) is generated by the second electric motor MG2.
- the torque causes the ring gear R2, that is, the output gear 30, to rotate in the positive direction. That is, by outputting negative torque by the second electric motor MG2, the hybrid vehicle to which the drive device 10 is applied can be caused to travel forward.
- the first electric motor MG1 is idled.
- the relative rotation of the carriers C1 and C2 is allowed, and EV travel control similar to EV travel in a vehicle equipped with a so-called THS (Toyota Hybrid System) in which the carrier C2 is connected to a non-rotating member. It can be performed.
- THS Toyota Hybrid System
- FIG. 3 corresponds to mode 2 (traveling mode 2) in the driving apparatus 10, and preferably the operation of the engine 12 is stopped and the first electric motor MG1 is stopped.
- this is an EV traveling mode in which at least one of the second electric motor MG2 is used as a driving source for traveling.
- FIG. 5 is a collinear diagram corresponding to this mode 2. If the collinear diagram is used to explain, the carrier C1 of the first planetary gear device 14 and the first planetary gear device 14 are engaged by engaging the clutch CL. The relative rotation of the two planetary gear unit 16 with the carrier C2 is disabled.
- the carrier C2 of the second planetary gear device 16 and the carrier C1 of the first planetary gear device 14 engaged with the carrier C2 are non-rotating members. Are connected (fixed) to each other and their rotational speed is zero.
- the rotation direction of the sun gear S1 is opposite to the rotation direction of the ring gear R1 in the first planetary gear device 14, and the rotation of the sun gear S2 is reversed in the second planetary gear device 16.
- the direction and the rotation direction of the ring gear R2 are opposite to each other.
- the hybrid vehicle to which the drive device 10 is applied can be caused to travel forward by outputting negative torque by at least one of the first electric motor MG1 and the second electric motor MG2.
- the mode 2 it is possible to establish a mode in which power generation is performed by at least one of the first electric motor MG1 and the second electric motor MG2.
- power generation by regeneration is not allowed, such as when the state of charge of the battery 55 is fully charged, it is possible to idle one or both of the first electric motor MG1 and the second electric motor MG2. That is, in the mode 2, it is possible to perform EV traveling under a wide range of traveling conditions, or to perform EV traveling continuously for a long time. Therefore, the mode 2 is suitably employed in a hybrid vehicle having a high EV traveling ratio such as a plug-in hybrid vehicle.
- HV-1 shown in FIG. 3 corresponds to mode 3 (traveling mode 3) in the driving device 10, and is preferably used as a driving source for traveling when the engine 12 is driven. This is a hybrid travel mode in which driving or power generation is performed by the first electric motor MG1 and the second electric motor MG2 as necessary.
- the collinear diagram of FIG. 4 also corresponds to this mode 3. If described using this collinear diagram, the carrier C1 of the first planetary gear device 14 and the carrier C1 are released by releasing the clutch CL. The second planetary gear device 16 can rotate relative to the carrier C2.
- “HV-2” shown in FIG. 3 corresponds to mode 4 (travel mode 4) in the drive device 10, and is preferably used as a drive source for travel when the engine 12 is driven.
- This is a hybrid travel mode in which driving or power generation is performed by the first electric motor MG1 and the second electric motor MG2 as necessary.
- FIG. 6 is a collinear diagram corresponding to the mode 4, and will be described using this collinear diagram.
- the ring gears R1 and R2 Since the ring gears R1 and R2 are connected to each other, the ring gears R1 and R2 operate as one rotating element that is rotated integrally. That is, in the mode 4, the rotating elements in the first planetary gear device 14 and the second planetary gear device 16 in the driving device 10 function as a differential mechanism including four rotating elements as a whole. That is, four gears in order from the left in FIG. 6 are the sun gear S1 (first electric motor MG1), the sun gear S2 (second electric motor MG2), the carriers C1 and C2 (engine 12) connected to each other, A composite split mode is obtained in which ring gears R1 and R2 (output gear 30) connected to each other are connected in this order.
- the arrangement order of the rotating elements in the first planetary gear device 14 and the second planetary gear device 16 in the alignment chart is a sun gear S1 indicated by a vertical line Y1.
- the sun gear S2 indicated by the vertical line Y2, the carriers C1 and C2 indicated by the vertical line Y3 (Y3 ′), and the ring gears R1 and R2 indicated by the vertical line Y4 (Y4 ′) are arranged in this order.
- the gear ratios ⁇ 1 and ⁇ 2 of the first planetary gear device 14 and the second planetary gear device 16 are respectively shown in FIG.
- the line Y2 is arranged in the above-described order, that is, the interval between the vertical line Y1 and the vertical line Y3 is wider than the interval between the vertical line Y2 and the vertical line Y3 ′.
- the sun gears S1 and S2 and the carriers C1 and C2 correspond to 1
- the carriers C1 and C2 and the ring gears R1 and R2 correspond to ⁇ 1 and ⁇ 2.
- the gear ratio ⁇ 2 of the second planetary gear device 16 is larger than the gear ratio ⁇ 1 of the first planetary gear device 14.
- the carrier C1 of the first planetary gear device 14 and the carrier C2 of the second planetary gear device 16 are connected, and the carriers C1 and C2 are connected to each other. It can be rotated integrally.
- the reaction force can be applied to the output of the engine 12 by either the first electric motor MG1 or the second electric motor MG2. That is, when the engine 12 is driven, the reaction force can be shared by one or both of the first electric motor MG1 and the second electric motor MG2, and the engine 12 can be operated at an efficient operating point, or the torque caused by heat. It is possible to run to ease restrictions such as restrictions.
- the efficiency can be improved by controlling the first motor MG1 and the second motor MG2 to receive the reaction force preferentially by the motor that can operate efficiently.
- the driving force is assisted by regeneration or output of an electric motor that is not torque limited, so that the engine 12 It is possible to ensure a reaction force necessary for driving.
- “HV-3” shown in FIG. 3 corresponds to mode 5 (traveling mode 5) in the driving device 10, and is preferably used as a driving source for traveling when the engine 12 is driven.
- This is a hybrid travel mode in which driving or power generation is performed by the first electric motor MG1 as necessary.
- FIG. 7 is a collinear diagram corresponding to this mode 5. If described with reference to this collinear diagram, the carrier C1 of the first planetary gear unit 14 and the second planetary gear device 14 are released by releasing the clutch CL.
- the planetary gear device 16 can rotate relative to the carrier C2.
- the carrier C2 of the second planetary gear device 16 can be rotated relative to the housing 26, which is a non-rotating member.
- the second electric motor MG2 can be disconnected from the drive system (power transmission path) and stopped.
- the second electric motor MG2 is always rotated with the rotation of the output gear 30 (ring gear R2) when the vehicle is traveling.
- the rotation speed of the second electric motor MG2 reaches a limit value (upper limit value), or the rotation speed of the ring gear R2 is increased and transmitted to the sun gear S2. Therefore, from the viewpoint of improving efficiency, it is not always preferable to always rotate the second electric motor MG2 at a relatively high vehicle speed.
- the second motor MG2 is driven by the engine 12 and the first motor MG1 by separating the second motor MG2 from the drive system at a relatively high vehicle speed, thereby driving the second motor MG2.
- the clutch CL and the brake BK are engaged or released in combination.
- Three modes of HV-1 (mode 3), HV-2 (mode 4), and HV-3 (mode 5) can be selectively established. Thereby, for example, by selectively establishing the mode with the highest transmission efficiency among these three modes according to the vehicle speed, the gear ratio, etc. of the vehicle, it is possible to improve the transmission efficiency and thus improve the fuel efficiency. it can.
- FIG. 8 is a functional block diagram for explaining the main part of the control function provided in the electronic control unit 40.
- the engine drive control unit 70 shown in FIG. 8 controls the drive of the engine 12 via the engine control device 56.
- the fuel supply amount to the intake pipe or the like by the fuel injection device of the engine 12 via the engine control device 56 the ignition timing (ignition timing) of the engine 12 by the ignition device, and the throttle valve opening of the electronic throttle valve
- ⁇ TH and the like the engine 12 is controlled so as to obtain a necessary output, that is, a target torque (target engine output).
- the accelerator opening degree A CC detected by the accelerator opening degree sensor 42 and the output rotation speed are detected.
- the required driving force to be output from the driving device 10 (output gear 30) is calculated, and the output torque of the engine 12 and the
- the operations of the first motor MG1 and the second motor MG2 are controlled via a motor operation control unit 72 described later so that the required driving force is realized by the output torque of the first motor MG1 and the second motor MG2.
- the drive of the engine 12 is controlled via the engine drive control unit 70.
- the electric motor operation control unit 72 controls the operation of the first electric motor MG1 and the second electric motor MG2 via the inverter 58. Specifically, by controlling the electric energy supplied from the battery 55 to the first electric motor MG1 and the second electric motor MG2 via the inverter 58, the required output by the first electric motor MG1 and the second electric motor MG2. That is, control is performed so that a target torque (target motor output) is obtained.
- a target torque target motor output
- the clutch engagement control unit 74 controls the engagement state of the clutch CL via the hydraulic control circuit 60. For example, by controlling the output pressure from the electromagnetic control valve corresponding to the clutch CL provided in the hydraulic pressure control circuit 60, control is performed to switch the engagement state of the clutch CL between engagement and release. .
- the brake engagement control unit 76 controls the engagement state of the brake BK via the hydraulic control circuit 60. For example, by controlling the output pressure from the electromagnetic control valve corresponding to the brake BK provided in the hydraulic control circuit 60, control is performed to switch the engagement state of the brake BK between engagement and release. .
- the clutch engagement control unit 74 and the brake engagement control unit 76 are basically engaged with the clutch CL and the brake BK so that the travel mode determined according to the travel state of the vehicle is established. To control. That is, for each of the modes 1 to 5, the engagement state is controlled so that the clutch CL and the brake BK are engaged or released in the combination shown in FIG.
- the crank position adjustment control unit 78 adjusts the crank position of the engine 12, that is, the rotation angle position of the crankshaft 12a, by at least one of the first electric motor MG1 and the second electric motor MG2 according to the state of the vehicle.
- the crank position adjustment is executed prior to the start.
- the crank position adjustment is executed prior to the start. More preferably, when the engine 12 is started from a vehicle stop (stopped) state, that is, a state in which the vehicle speed V corresponding to the output rotational speed N OUT detected by the output rotational speed sensor 50 is zero, prior to the start. Then, the crank position adjustment is executed.
- crank position rotational angle position
- the determination is negative.
- the rotational angle position of the crankshaft 12a is adjusted so that the crankshaft 12a falls within the specified angular range.
- the prescribed angle range is preferably determined in advance by experimentally obtaining an angle range that does not cause problems such as a start shock or a rattling sound when the engine 12 is started.
- the crank driving torque determination unit 80 determines (calculates) a torque T crnk necessary for adjusting the crank position of the engine 12. That is, by driving the crankshaft 12a, the torque Tcrnk necessary to bring the rotational angle position of the crankshaft 12a into the specified angle range is determined.
- the predetermined relationship, the crank position of the crankshaft 12a detected by the crank position sensor 52 (rotational angular position) based on the P CR, torque T required to position adjustment of the crank shaft 12a Determine crnk .
- the torque T crnk necessary for setting the rotation angle position of the crankshaft 12a within the specified angle range varies depending on the rotation angle position (before adjustment) of the crankshaft 12a.
- the crank drive torque determining section 80 the required based on the crank position P CR of the crank shaft 12a detected by the crank position sensor 52 from the relationship Torque T crnk is determined.
- the crank drive torque determination unit 80 is necessary for adjusting the position of the crankshaft 12 a based on the temperature Th E of the engine 12 detected by the engine temperature sensor 53 from a predetermined relationship.
- Torque T crnk is determined.
- the torque T crnk required for setting the rotational angle position of the crankshaft 12a within the specified angle range varies depending on the temperature Th E of the engine 12, and generally the lower the engine temperature Th E is, the more necessary the torque T crnk is. Torque T crnk increases.
- the crank drive torque determination unit 80 determines the necessary torque T crnk based on the temperature Th E of the engine 12 detected by the engine temperature sensor 53 from the corresponding relationship. More preferably, the crankshaft 12a of the required torque to be determined in accordance with (before adjustment in) the rotational angular position P CR, corrected according to the temperature Th E of the engine 12 (e.g., engine temperature Th E The torque T crnk necessary for adjusting the position of the crankshaft 12a is determined by correcting so that it increases as the value decreases .
- the torque T crnk necessary for adjusting the position of the crankshaft 12a may be determined (calculated) according to the result.
- the crank driving torque determination unit 80 preferably outputs the first electric motor MG1 and the second electric motor MG2 in order to output the torque T crnk necessary for adjusting the position of the crankshaft 12a determined as described above.
- the power (electric energy) consumed in at least one of is calculated.
- the crank driving power P crnk that is energy output (taken out) from the battery 55. Is calculated.
- the battery allowable output determination unit 82 determines (calculates) the allowable output (output allowable value) W OUT of the battery 55. For example, based on the charge capacity (charge state) SOC of the battery 55 detected by the battery SOC sensor 54, the battery allowable output W OUT that is the power (electric energy) allowed to be output from the battery 55 is determined. To do.
- the crank position adjustment control unit 78 engages the clutch CL when the torque T crnk required for adjusting the crank position of the engine 12 is equal to or greater than a predetermined threshold T gmax.
- the crank position of the engine 12 is adjusted by the first electric motor MG1 and the second electric motor MG2 with the brake BK released. That is, when the torque T crnk required for the crank position adjustment determined by the crank driving torque determination unit 80 is equal to or greater than a predetermined threshold T gmax , the clutch engagement control unit 74 sets the clutch CL.
- the brake BK is released by the brake engagement control unit 76 and the operation (output torque) of the first electric motor MG1 and the second electric motor MG2 is controlled by the electric motor operation control unit 72 via the inverter 58.
- the torque T crnk necessary for adjusting the crank position of the engine 12 is output in cooperation with the first electric motor MG1 and the second electric motor MG2.
- the threshold value T gmax is preferably an upper limit value at which the crankshaft 12a can be driven exclusively by the first electric motor MG1.
- FIG. 9 is a collinear diagram illustrating crank position adjustment control by the crank position adjustment control unit 78, with the vertical line Y4 (Y4 ′) corresponding to the output gear 30 (ring gears R1 and R2) in the center.
- Vertical lines Y1 and Y3 corresponding to the rotating elements in the first differential mechanism 14 are on the right side of the drawing, and vertical lines Y2 and Y3 'corresponding to the rotating elements of the second differential mechanism 16 are on the right side of the drawing.
- Each is shown expanded.
- a state (rotational speed) in which the carriers C1 and C2 are engaged by the clutch CL is indicated by a one-dot chain line X2. As shown in FIG.
- crankshaft 12a is driven by the first electric motor MG1 alone (without outputting torque by the second electric motor MG2), and preferably Crank position adjustment control can be executed.
- the crank position adjustment control unit 78 preferably releases the clutch CL when the torque T crnk required for crank position adjustment of the engine 12 is less than a predetermined threshold T gmax.
- the crank position of the engine 12 is adjusted exclusively by the first electric motor MG1 (without outputting torque by the second electric motor MG2).
- the crank position of the engine 12 is adjusted exclusively by the first electric motor MG1 with both the clutch CL and the brake BK released. That is, when the torque T crnk required for the crank position adjustment determined by the crank drive torque determination unit 80 is less than a predetermined threshold value T gmax , the clutch engagement control unit 74 sets the clutch CL.
- the brake BK is released by the brake engagement control unit 76 and the operation (output torque) of the first electric motor MG1 is controlled by the electric motor operation control unit 72 via the inverter 58.
- the first electric motor MG1 outputs a torque T crnk necessary for adjusting the crank position of the engine 12.
- Figure 10 shows an example of a rotation angle position (1/4 crank position) and P CR, the relationship between the crank shaft 12a required torque to the crank position adjustment (crank starting torque) T Crnk before adjustment of the crank shaft 12a
- the torque T crnk required for crank position adjustment is obtained by the first electric motor MG1 alone when the rotation angle position before adjustment of the crankshaft 12a is in an angle range of ⁇ bo to 0 (deg). It is equal to or greater than the threshold value Tgmax, which is the upper limit value at which the crank position can be adjusted.
- the first electric motor MG1 alone cannot adjust the crank position, so the first electric motor MG1 and the second electric motor MG2 cooperate. It is necessary to adjust the crank position.
- the crank position can be adjusted by the first electric motor MG1 alone.
- the crank position adjustment control unit 78 preferably releases the clutch CL when the allowable output W OUT of the battery 55, which is a drive battery, is less than a predetermined threshold value, and the second electric motor.
- the crank position adjustment of the engine 12 by MG2 is prohibited. More preferably, when the allowable output W OUT of the battery 55 is less than a predetermined threshold, the crank position adjustment control by the crank position adjustment control unit 78 is prohibited (not executed).
- the threshold is a crank that is energy output from the battery 55 in order to output the torque T crnk required for adjusting the position of the crankshaft 12a, which is determined by the crank driving torque determination unit 80.
- Drive power P crnk that is, preferably, when the allowable output W OUT of the battery 55 that is a drive battery is less than the crank drive power P crnk determined by the crank drive torque determination unit 80, the crank position adjustment control unit The crank position adjustment control by 78 is prohibited.
- FIG. 11 is a flowchart for explaining a main part of an example of the crank position adjustment control by the electronic control unit 40, which is repeatedly executed at a predetermined cycle.
- step (hereinafter abbreviated step) in S1 the rotational angular position P CR of the crank shaft 12a of the engine 12 based on a detection result of the crank position sensor 52 is determined.
- step S2 the temperature Th E of the engine 12 is determined based on the detection result of the engine temperature sensor 53.
- step3 based on the detected engine temperature Th E etc. at the rotational angular position P CR and S2 detected the crankshaft 12a at S1, the crank starting torque i.e. the crank position adjustment of the engine 12 Is estimated (determined).
- step 4 in order to output the torque T crnk estimated in S3, the crank drive power P crnk that is energy output (taken out) from the battery 55 is estimated (determined).
- the allowable output (output allowable value) W OUT of the battery 55 is determined based on the detection result of the battery SOC sensor 54.
- S6 it is determined whether or not the allowable output W OUT of the battery 55 determined in S5 is larger than the crank driving power P crnk estimated in S4. If the determination in S6 is negative, the crank position adjustment control is not performed, and the routine is terminated. However, if the determination in S6 is affirmative, in S7, the estimation is performed in S3. It is determined whether or not the crank start torque T crnk is greater than a predetermined threshold T gmax .
- step S7 After the position adjustment control of the crankshaft 12a is executed, this routine is terminated. If the determination in S7 is negative, in S10, the clutch CL is released and the brake BK is preferably operated. In step S11, after the position adjustment control of the crankshaft 12a is executed exclusively by the first electric motor MG1, this routine is terminated.
- S9 and S11 are the operations of the motor operation control unit 72
- S8 and S10 are the operations of the clutch engagement control unit 74 and the brake engagement control unit 76
- S1 to S11 are the crank position adjustment control
- S3, S4, and S7 correspond to the operation of the crank drive torque determination unit 80
- S5 and S6 correspond to the operation of the battery allowable output determination unit 82, respectively.
- the drive control device for a hybrid vehicle according to the present invention is the first electric motor MG1, the first planetary gear device 14, and the second
- the present invention is also preferably applied to a configuration in which the arrangement (arrangement) of the electric motor MG2, the second planetary gear device 16, the clutch CL, and the brake BK is changed.
- the carrier C2 is allowed to rotate in one direction with respect to the housing 26 between the carrier C2 of the second planetary gear device 16 and the housing 26 which is a non-rotating member.
- the present invention is also preferably applied to a configuration in which a one-way clutch (one-way clutch) OWC that prevents reverse rotation is provided in parallel with the brake BK.
- a one-way clutch one-way clutch
- OWC one-way clutch
- As an alternative to the single-pinion type second planetary gear unit 16 such as a driving unit 130 shown in FIG. 15, a driving unit 140 shown in FIG. 16, and a driving unit 150 shown in FIG.
- the present invention is also preferably applied to a configuration including a pinion type second planetary gear device 16 '.
- the second planetary gear device 16 ' includes a sun gear S2' as a first rotation element, a carrier C2 'as a second rotation element that supports a plurality of pinion gears P2' meshed with each other so as to rotate and revolve, and a pinion gear.
- a ring gear R2 ′ as a third rotating element meshing with the sun gear S2 ′ via P2 ′ is provided as a rotating element (element).
- FIG. 18 to 20 are collinear diagrams illustrating the configuration and operation of other hybrid vehicle drive devices 160, 170, and 180 to which the present invention is preferably applied as an alternative to the drive device 10.
- FIG. 18 to 20 the relative rotational speeds of the sun gear S1, the carrier C1, and the ring gear R1 in the first planetary gear device 14 are indicated by the solid line L1 as in the collinear charts of FIGS.
- the relative rotational speeds of the sun gear S2, the carrier C2, and the ring gear R2 in the second planetary gear device 16 are indicated by broken lines L2.
- the sun gear S1, the carrier C1, and the ring gear R1 of the first planetary gear device 14 are connected to the first electric motor MG1, the engine 12, and the second electric motor MG2, respectively.
- the sun gear S2, the carrier C2, and the ring gear R2 of the second planetary gear device 16 are connected to the housing 26 via the second electric motor MG2, the output gear 30, and the brake BK, respectively.
- the sun gear S1 and the ring gear R2 are selectively connected via the clutch CL.
- the ring gear R1 and the sun gear S2 are connected to each other.
- the sun gear S1, the carrier C1, and the ring gear R1 of the first planetary gear device 14 are connected to the first electric motor MG1, the output gear 30, and the engine 12, respectively.
- the sun gear S2, the carrier C2, and the ring gear R2 of the second planetary gear device 16 are connected to the housing 26 via the second electric motor MG2, the output gear 30, and the brake BK, respectively.
- the sun gear S1 and the ring gear R2 are selectively connected via the clutch CL.
- the clutches C1 and C2 are connected to each other.
- the sun gear S1, the carrier C1, and the ring gear R1 of the first planetary gear device 14 are connected to the first electric motor MG1, the output gear 30, and the engine 12, respectively.
- the sun gear S2, the carrier C2, and the ring gear R2 of the second planetary gear device 16 are connected to the housing 26 and the output gear 30 through the second electric motor MG2 and the brake BK, respectively.
- the ring gear R1 and the carrier C2 are selectively connected via a clutch CL.
- the carrier C1 and the ring gear R2 are connected to each other.
- the drive control apparatus for a hybrid vehicle of the present invention described above with reference to FIG. 8 and the like is also preferably applied to the configurations shown in FIGS. That is, the crank position of the engine 12 is adjusted by at least one of the first electric motor MG1 and the second electric motor MG2 according to the state of the vehicle.
- the first clutch is engaged with the clutch CL engaged and the brake BK released.
- the crank position of the engine 12 is adjusted by the electric motor MG1 and the second electric motor MG2.
- the clutch CL is released.
- control such as adjusting the crank position of the engine 12 is performed by the first electric motor MG1.
- the driving devices 160, 170, 180, etc. can also achieve the effect of adjusting the crank position when starting the engine and suppressing the occurrence of problems such as a start shock.
- the first difference having four rotation elements (expressed as four rotation elements) on the collinear chart is the same as the embodiment shown in FIGS.
- the first planetary gear unit 14 as a moving mechanism and the second planetary gear units 16 and 16 'as a second differential mechanism, and a first electric motor MG1, a second electric motor MG2, and an engine connected to the four rotating elements, respectively. 12 and an output rotation member (output gear 30), one of the four rotation elements being the rotation element of the first planetary gear device 14 and the second planetary gear device 16, 16 '.
- a rotating element is selectively connected via a clutch CL, and the rotating element of the second planetary gear devices 16 and 16 'to be engaged by the clutch CL is braked against the housing 26 which is a non-rotating member.
- a clutch CL In that it is a drive control apparatus for a hybrid vehicle which is selectively connected, it is common.
- the clutch CL there are four rotating elements as a whole in a state in which the clutch CL is engaged (represented as four rotating elements on the collinear chart shown in FIGS. 4 to 7 and the like).
- the first planetary gear unit 14 that is the first differential mechanism and the second planetary gear units 16 and 16 'that are the second differential mechanism, and the engine 12 and the first electric motor MG1 that are respectively connected to these four rotating elements.
- a second electric motor MG2, and an output gear 30 that is an output rotation member, and one of the four rotation elements is a rotation element of the first differential mechanism and a rotation of the second differential mechanism.
- a drive control device for a hybrid vehicle that is selectively connected, wherein the crank position of the engine 12 is adjusted by at least one of the first electric motor MG1 and the second electric motor MG2 in accordance with the state of the vehicle. For example, when a relatively large torque is required for cranking, the crank position of the engine 12 can be adjusted suitably by using the first electric motor MG1 and the second electric motor MG2 together. That is, the electronic control device 40 can be provided as a drive control device for a hybrid vehicle that adjusts the crank position when starting the engine and suppresses the occurrence of problems such as a start shock.
- the first electric motor MG1 When the torque T crnk necessary for adjusting the crank position of the engine 12 is equal to or greater than a predetermined threshold value T gmax , the first electric motor MG1 is engaged with the clutch CL engaged and the brake BK released. state and the performs the crank position adjustment of the engine 12 by the second electric motor MG2, when the torque T Crnk necessary crank position adjustment of the engine 12 is less than the threshold value T gmax is obtained by releasing the clutch CL Since the crank position of the engine 12 is adjusted by the first electric motor MG1, when the driving torque of the crankshaft 12a is relatively large, the first electric motor MG1 and the second electric motor MG2 are used together. While the crank position of the engine 12 can be adjusted suitably, the driving torque of the crankshaft 12a Relatively smaller can solely realize the suitably crank position adjustment without unnecessary hydraulic control and wasteful power consumption by performing the crank position adjusted by the first electric motor MG1.
- the first planetary gear unit 14 is connected to a sun gear S1 as a first rotating element connected to the first electric motor MG1, a carrier C1 as a second rotating element connected to the engine 12, and the output gear 30.
- the second planetary gear unit 16 (16 ′) includes a sun gear S2 (S2 ′), a second rotation element connected to the second electric motor MG2, and a second gear R1.
- a carrier C2 (C2 ′) as a rotating element and a ring gear R2 (R2 ′) as a third rotating element are provided, and any one of the carrier C2 (C2 ′) and the ring gear R2 (R2 ′) is the first planet.
- the clutch CL is connected to the ring gear R1 of the gear device 14, and the clutch CL includes the carrier C1 in the first planetary gear device 14 and the carrier C2 ( 2 ′) and the ring gear R2 (R2 ′), which is selectively engaged with the rotating element not connected to the ring gear R1, the brake BK includes the carrier C2 (C2 ′) and the ring gear.
- R2 (R2 ′), which is not connected to the ring gear R1, is selectively engaged with the housing 26, which is a non-rotating member.
- the crank position can be adjusted when starting the engine to suppress the occurrence of problems such as a start shock.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims (4)
- 全体として4つの回転要素を有する第1差動機構及び第2差動機構と、該4つの回転要素にそれぞれ連結されたエンジン、第1電動機、第2電動機、及び出力回転部材とを、備え、
前記4つの回転要素のうちの1つは、前記第1差動機構の回転要素と前記第2差動機構の回転要素とがクラッチを介して選択的に連結され、
該クラッチによる係合対象となる前記第1差動機構又は前記第2差動機構の回転要素が、非回転部材に対してブレーキを介して選択的に連結される
ハイブリッド車両の駆動制御装置であって、
車両の状態に応じて前記第1電動機及び第2電動機の少なくとも一方により前記エンジンのクランク位置調整を行うことを特徴とするハイブリッド車両の駆動制御装置。 - 前記エンジンのクランク位置調整に必要なトルクが予め定められた閾値以上である場合には、前記クラッチを係合させると共に前記ブレーキを解放させた状態で前記第1電動機及び第2電動機により前記エンジンのクランク位置調整を行うが、前記エンジンのクランク位置調整に必要なトルクが前記閾値未満である場合には、前記クラッチを解放させた状態で前記第1電動機により前記エンジンのクランク位置調整を行うものである請求項1に記載のハイブリッド車両の駆動制御装置。
- 駆動用バッテリの許容出力が予め定められた閾値未満である場合には、前記エンジンのクランク位置調整を禁止す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駆動制御装置。
- 前記第1差動機構は、前記第1電動機に連結された第1回転要素、前記エンジンに連結された第2回転要素、及び前記出力回転部材に連結された第3回転要素を備えたものであり、
前記第2差動機構は、前記第2電動機に連結された第1回転要素、第2回転要素、及び第3回転要素を備え、それら第2回転要素及び第3回転要素の何れか一方が前記第1差動機構における第3回転要素に連結されたものであり、
前記クラッチは、前記第1差動機構における第2回転要素と、前記第2差動機構における第2回転要素及び第3回転要素のうち前記第1差動機構における第3回転要素に連結されていない方の回転要素とを選択的に係合させるものであり、
前記ブレーキは、前記第2差動機構における第2回転要素及び第3回転要素のうち前記第1差動機構における第3回転要素に連結されていない方の回転要素を、前記非回転部材に対して選択的に係合させるものである
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駆動制御装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/057810 WO2013145091A1 (ja) | 2012-03-26 | 2012-03-26 | ハイブリッド車両の駆動制御装置 |
| CN201280071834.0A CN104203693A (zh) | 2012-03-26 | 2012-03-26 | 混合动力车辆的驱动控制装置 |
| EP12872584.3A EP2832607A1 (en) | 2012-03-26 | 2012-03-26 | Hybrid vehicle drive control device |
| US14/387,932 US20150057863A1 (en) | 2012-03-26 | 2012-03-26 | Hybrid vehicle drive control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/057810 WO2013145091A1 (ja) | 2012-03-26 | 2012-03-26 | ハイブリッド車両の駆動制御装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013145091A1 true WO2013145091A1 (ja) | 2013-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2012/057810 Ceased WO2013145091A1 (ja) | 2012-03-26 | 2012-03-26 | ハイブリッド車両の駆動制御装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20150057863A1 (ja) |
| EP (1) | EP2832607A1 (ja) |
| CN (1) | CN104203693A (ja) |
| WO (1) | WO2013145091A1 (ja) |
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| JP2016112906A (ja) * | 2014-12-10 | 2016-06-23 | トヨタ自動車株式会社 | 車両用動力伝達装置の制御装置 |
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| DE102014220066A1 (de) * | 2014-10-02 | 2016-06-09 | Zf Friedrichshafen Ag | Verfahren und Steuerungseinrichtung zum Betreiben eines Antriebsstrangs |
| CN107696913A (zh) * | 2017-09-13 | 2018-02-16 | 山东理工大学 | 一种双电机双驱轴电动车非驱动永磁电机拖转控制方法 |
| CN107599892B (zh) * | 2017-09-13 | 2019-11-29 | 山东理工大学 | 一种双电机双驱轴电动车非驱动电机拖转控制方法 |
| JP7722305B2 (ja) * | 2022-09-16 | 2025-08-13 | トヨタ自動車株式会社 | 車両用制御装置 |
| SE546268C2 (en) * | 2022-12-21 | 2024-09-17 | Scania Cv Ab | A transmission arrangement and control of the transmission arrangement |
| SE546266C2 (en) * | 2022-12-21 | 2024-09-17 | Scania Cv Ab | A transmission arrangement and control of the transmission arrangement |
| CN116572925A (zh) * | 2023-06-26 | 2023-08-11 | 中国第一汽车股份有限公司 | 一种发动机曲轴位置调整方法、装置及混合动力车辆 |
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- 2012-03-26 US US14/387,932 patent/US20150057863A1/en not_active Abandoned
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Also Published As
| Publication number | Publication date |
|---|---|
| US20150057863A1 (en) | 2015-02-26 |
| EP2832607A1 (en) | 2015-02-04 |
| EP2832607A8 (en) | 2015-03-25 |
| CN104203693A (zh) | 2014-12-10 |
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