CN109353208A - A kind of hybrid power assembly and its control method - Google Patents
A kind of hybrid power assembly and its control method Download PDFInfo
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- CN109353208A CN109353208A CN201811142841.0A CN201811142841A CN109353208A CN 109353208 A CN109353208 A CN 109353208A CN 201811142841 A CN201811142841 A CN 201811142841A CN 109353208 A CN109353208 A CN 109353208A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—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
- B60K6/36—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 transmission gearings
-
- 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
- B60K6/40—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 assembly or relative disposition of components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
- Structure Of Transmissions (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of hybrid power assemblies, including engine, first motor, output shaft, the armature spindle of first motor and the crankshaft of engine are connected, damping element connection in the armature spindle and gearbox of first motor, damping element is equipped with input and combines gear ring, and input combines gear ring that can connect by the first sliding sleeve with the first gear that sky is set on the output shaft.The crankshaft of the armature spindle of first motor and engine is directly connected by this programme, realizes that first motor and engine are highly integrated, so as to shorten axial length, reduces cost；The operating condition that engine in this programme directly participates in driving expands, and operating condition is optimized, and efficiency improves, and the efficiency of the hybrid power assembly can also be further increased by increasing gear；The compact overall structure of the hybrid power assembly of this programme, integrated level is high, and dynamic property is strong, and vehicle passability is high.The invention also discloses a kind of control methods of hybrid power assembly.
Description
Technical field
The present invention relates to hybrid vehicle technology field more particularly to a kind of hybrid power assembly and its control methods.
Background technique
Currently, the combined hybrid system of hybrid vehicle is there are mainly three types of form: 1) (such as Toyota is general sharp for ECVT combined hybrid system
This)；2) engine+ISG+ clutch+TM；3) engine+ISG+AMT+TM.Wherein, ECVT (Electronic
Continuously Variable Transmission) it is electric control stepless formula automatic transmission.ISG(Integrated
Starter and Generator), it both can be used as driving motor starting engine, and can also be used as generator, as driving
When motor, driving vehicle can also be participated in.TM (Traction Motor) is driving motor, when can be used for vehicle braking
Power generation mode.AMT (Automated MechanicalTransmission) is electrical control automatic manual transmission case.
Wherein scheme 1) schematic diagram it is shown in Figure 1, can by control motor 02 optimize 01 operation interval of engine, make
Engine 01 always works in high efficient district, and rate of economizing gasoline is relatively high, but its control is complex, is related to double couplings of torque and revolving speed
It closes and decouples.
Wherein scheme 2) schematic diagram it is shown in Figure 2, between generator 03 and driving motor 04 by clutch connect,
It is the dominant form of early period in the market, power performance is general, and 01 operating rotational speed range of engine is big, and is driven using large torque
Motor, higher cost.
Wherein scheme 3) combined hybrid system, in scheme 2) on the basis of, increase 2-4 gear between generator and driving motor
AMT replaces clutch, improves engine operating condition, and power performance promoted, but because driving motor directly drives, cost still compared with
It is high.
Therefore, the structure and operating condition for how optimizing hybrid power assembly are that those skilled in the art need to solve at present
Technical problem.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of hybrid power assembly and its control method, the hybrid power
Assembly structure is compact, and integrated level is high, can improve driving motor operating condition, reduces Motor torque and power；Control method
Driver comfort and acceleration can be improved to avoid power interruption；Engine operating condition is adjusted, engine operating efficiency is improved.
To achieve the goals above, the present invention provides the following technical scheme that
A kind of hybrid power assembly, including engine, first motor, output shaft, the armature spindle of the first motor and institute
The crankshaft for stating engine is connected, and the armature spindle of the first motor is connect with the damping element in the gearbox, the vibration damping
Element is equipped with input and combines gear ring, and the input can pass through the first sliding sleeve and empty set the on the output shaft in conjunction with gear ring
The connection of one gear.
Preferably, above-mentioned hybrid power assembly further includes the second motor and gear shifting actuating mechanism, is connected on the output shaft
There is output to combine gear ring, is also set with second gear and at least one shift gear on the output shaft；
The second sliding sleeve Chang Lian in the armature spindle of second motor and the gearbox, can by second sliding sleeve with
And the output is connected to the output shaft in conjunction with gear ring；
The second gear is combined gear ring Chang Lian with second, and described second can pass through second sliding sleeve and institute in conjunction with gear ring
State the rotor axis connection of the second motor；
The first gear is combined gear ring Chang Lian with first, described first in conjunction with gear ring can by third sliding sleeve with it is described defeated
Axis connection out；
Each shift gear correspondence is often connected with gear combination gear ring, and the gear combination gear ring can be changed by corresponding
Gear sliding sleeve is connected to the output shaft.
Preferably, in above-mentioned hybrid power assembly, the quantity of the shift gear is one, the shift gear and the
Three combine gear ring Chang Lian, and the third combination gear ring can be connected to the output shaft by the third sliding sleeve.
Preferably, in above-mentioned hybrid power assembly, the gear shifting actuating mechanism is electronic gear shifting actuating mechanism or hydraulic
Gear shifting actuating mechanism or Pneumatic shift executing agency.
Hybrid power assembly provided by the invention, including engine, first motor, output shaft, the armature spindle of first motor
It is connected with the crankshaft of engine, the damping element connection in the armature spindle and gearbox of first motor, damping element is equipped with defeated
Enter and combine gear ring, input combines gear ring that can connect by the first sliding sleeve with the first gear that sky is set on the output shaft.
This programme cancels the starting systems such as the engine ring gear in original hybrid power assembly, simplifies flywheel, by the first electricity
The armature spindle of machine and the crankshaft of engine are directly connected, and realize that first motor and engine are highly integrated, so as to shorten axis
To length, cost is reduced；The operating condition that engine in this programme directly participates in driving expands, and operating condition is optimized, and efficiency improves,
The efficiency of the hybrid power assembly can also be further increased by increasing gear；The whole knot of the hybrid power assembly of this programme
Structure is compact, and integrated level is high, and dynamic property is strong, and vehicle passability is high.
The present invention also provides a kind of control methods for above-mentioned hybrid power assembly, when the hybrid power assembly is shifted gears
When, shift control method is as follows:
Second motor is turned round clearly, and the gear shifting actuating mechanism pushes second sliding sleeve to pluck to neutral gear, second electricity
Machine is adjusted the speed to calculating revolving speed, then second sliding sleeve promotion is put into gear and is combined gear ring to engage with the output, second electricity
Machine restores torque and is directly driven；
The engine and the first motor are turned round clearly, and the gear shifting actuating mechanism pushes the gearshift sliding sleeve to pluck to sky
Gear, the first motor adjust the speed to calculating revolving speed, then gearshift sliding sleeve promotion are put into gear and gear ring connects in conjunction with the gear
It closes, the engine or the first motor are restored torque and driven with target gear；
Second motor is turned round clearly, and the gear shifting actuating mechanism pushes second sliding sleeve to pluck to neutral gear, second electricity
Machine is adjusted the speed to calculating revolving speed, then second sliding sleeve promotion is put into gear and is combined gear ring to engage with described second, second electricity
Machine restores torque and with the engine and the first motor with the driving of same target gear.
In control method provided by the invention, the second motor has multiple gears, can optimize the operating condition of motor, reduces electricity
The torque and power and cost of machine.In shift process, first pass through the second motor and directly driven, power failure-free, engine and
Driving motor operating condition is optimized, improved efficiency, so as to improve driver comfort and acceleration.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is existing ECVT combined hybrid system schematic illustration；
Fig. 2 is existing engine+ISG+ clutch+TM combined hybrid system schematic illustration；
Fig. 3 is the schematic illustration of the hybrid power assembly in the specific embodiment of the invention.
Fig. 1 is into Fig. 3:
01- engine, 02- motor, 03- generator, 04- driving motor；
1- engine, 2- first motor, the second motor of 3-, 5- output shaft, 11- input combine gear ring, the first conjunction gear of 21-
Circle, 22- second combine gear ring, 23- third combination gear ring, 31- first gear, 32- second gear, 33- third gear, 41- the
One sliding sleeve, the second sliding sleeve of 42-, 43- third sliding sleeve, 51- output combine gear ring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to figure 3., Fig. 3 is the schematic illustration of the hybrid power assembly in the specific embodiment of the invention.
A kind of hybrid power assembly, including engine 1, first motor 2, output shaft 5, the armature spindle and hair of first motor 2
The crankshaft of motivation 1 is connected, and the damping element connection in the armature spindle and gearbox of first motor 2, damping element is equipped with input
In conjunction with gear ring 11, input combines gear ring 11 that can connect by the first gear 31 of the first sliding sleeve 41 and empty set on output shaft 5, should
Structure for realizing engine+first motor power unit and subsequent power drive system separation and engagement.
This programme cancels the starting systems such as the engine ring gear in original hybrid power assembly, simplifies flywheel, by the first electricity
The armature spindle of machine 2 and the crankshaft of engine 1 are directly connected, and realize that first motor 2 and engine 1 are highly integrated, so as to contract
Short axial length reduces cost；The operating condition that engine 1 in this programme directly participates in driving expands, and operating condition is optimized, efficiency
It improves, the efficiency of the hybrid power assembly can also be further increased by increasing gear；The hybrid power assembly of this programme
Compact overall structure, integrated level is high, and dynamic property is strong, and vehicle passability is high.
It should be noted that above-mentioned hybrid power assembly further includes the second motor 3 and gear shifting actuating mechanism, on output shaft 5
It is fixed with output and combines gear ring 51, be also set with second gear 32 and at least one shift gear on output shaft 5；
42 Chang Lian of the second sliding sleeve in the armature spindle and gearbox of second motor 3 can pass through the second sliding sleeve 42 and output
It realizes in conjunction with gear ring 51 and is connect with output shaft 5；
Second gear 32 is combined 22 Chang Lian of gear ring with second, and second combines gear ring 22 can be by the second sliding sleeve 42 and the second electricity
The rotor axis connection of machine 3；
First gear 31 is combined 21 Chang Lian of gear ring with first, and first can pass through third sliding sleeve 43 and output shaft in conjunction with gear ring 21
5 connections；
Each shift gear is corresponding to be often connected with gear combination gear ring, gear combination gear ring can by corresponding gearshift sliding sleeve and
Output shaft 5 connects.
First gear 31, second gear 32 and other shift gears are nibbled with the respective gears being fixed on jackshaft respectively
It closes.
In a kind of preferred embodiment scheme, as shown in figure 3, the quantity of shift gear is one, the gear in this programme
Gear is third gear 33, third gear 33 gear ring 23 (i.e. gear ring in conjunction with gear) Chang Lian, third combination gear ring in conjunction with third
23 can be connect by third sliding sleeve 43 with output shaft 5.
It should be noted that gear shifting actuating mechanism is to integrate multiple mutually indepedent shifts in above-mentioned hybrid power assembly
Executing agency, be specifically as follows electronic gear shifting actuating mechanism or hydraulic gear-shifting executing agency or Pneumatic shift executing agency.
The hybrid power assembly that this programme provides has following 6 Main Patterns: (1) electric-only mode；(2) series connection mould
Formula；(3) paralleling model；(4) mixed connection mode；(5) power generation in parking mode；(6) pure engine mode.Remaining such as limping function
Energy, wriggling driving functions, uphill starting miscellaneous function etc. are no longer described in detail.
First motor 2 and 1 Chang Lian of engine in this programme, while there are two gears for tool, compared to institute in background technique
The existing scheme 2 said), the operating condition that engine directly participates in driving expands, and operating condition is optimized, and efficiency improves.Of course for into
One step improves the efficiency of assembly, can increase gear, that is, by the multiple shift gears of empty set on output shaft 5 and cooperate multiple
Gearshift sliding sleeve realizes increase gear, but whole axial length, manufacturing cost, NVH, complexity etc. will increased.?
Engine directly participates in the operating condition accounting about 30% of driving in deep mixing system, and engine only directly participates in driving in high speed traveling
It is dynamic, therefore, urban road traveling or it is main in the vehicle that runs at a low speed, engine is not necessarily to excessive gear.This programme second
There are three gears for the tool of motor 3, can optimize the operating condition of motor, reduce the torque and power of motor, reduce the cost of motor.
In addition, damping element is integrated into gearbox by this programme, it can be with gearbox gear oil to damping element principal and subordinate
Moving plate and spring are lubricated and cooling, raising reliability.
The present invention also provides a kind of control methods for above-mentioned hybrid power assembly, when the hybrid power assembly is shifted gears
When, shift control method is as follows:
Second motor 3 is turned round clearly, and gear shifting actuating mechanism pushes the second sliding sleeve 42 to pluck to neutral gear, the second motor 3 speed regulation to first
Revolving speed is calculated, then the promotion of the second sliding sleeve 42 is put into gear and is combined gear ring 51 to engage with output, it is straight that the second motor 3 restores torque progress
It drives；
Engine 1 and first motor 2 are turned round clearly, and gear shifting actuating mechanism pushes gearshift sliding sleeve to pluck to neutral gear, and first motor 2 adjusts the speed
To second calculate revolving speed, then by gearshift sliding sleeve promotion put into gear and with gear ining conjunction with gear ring engagement, engine 1 or first motor 2 are extensive
Multiple torque is simultaneously driven with target gear；
Second motor 3 is turned round clearly, and gear shifting actuating mechanism pushes the second sliding sleeve 42 to pluck to neutral gear, the second motor 3 speed regulation to third
Calculate revolving speed, then the promotion of the second sliding sleeve 42 put into gear and combined gear ring 22 to engage with second, the second motor 3 recovery torque and with hair
Motivation 1 and first motor 2 are with the driving of same target gear.
It should be noted that it is respectively to shift to that above-mentioned first calculating revolving speed, the second calculating revolving speed and third, which calculate revolving speed,
Required revolving speed when the corresponding target gear of each motor, repeats no more herein.
In control method provided by the invention, the second motor 3 has multiple gears, can optimize the operating condition of motor, reduces
The torque and power and cost of motor.In shift process, first passes through the second motor 3 and directly driven, power failure-free, engine
1 and driving motor operating condition optimized, improved efficiency, so as to improve driver comfort and acceleration.
In the following, referring to figure 3., the hybrid power assembly that this programme offer is introduced by specific control process is answered
The implementation of the control method of vehicle:
(1) vehicle power-on self-test.Just whether each sliding sleeve physical location of self-test and each controller, sensor, executing agency
Often.If having in each sliding sleeve not in neutral gear, pluck to neutral gear.
(2) vehicle launch (Start).Gear shifting actuating mechanism pushes the second sliding sleeve 42 (in figure to the right) to put into gear backward, with the
Two combine gear ring 22 to engage.Gear shifting actuating mechanism pushes third sliding sleeve 43 (in figure to the right) to put into gear backward, the gear ring in conjunction with third
23 engagements.
(3) vehicle start.Second motor 3 responds HCU (Hybrid Control Unit, the automatically controlled list of hybrid power assembly
Member, the electric-control system of hybrid power assembly) according to vehicle gas pedal demarcate torque MAP send control instruction output torque,
The starting of vehicle electric-only mode.
(4) low vehicle speeds.Electric-only mode is run at a low speed, and HCU is according to power battery SOC (State of
Current, state-of-charge characterize the remaining capacity of battery), vehicle torque demand and speed, enter series model in due course.First
Motor 2 responds the engine towing astern instruction starting engine 1 that HCU is sent, and driving first motor 2 generates electricity after engine 1 starts.
(5) vehicle mode switches.Electric-only mode traveling is until reach the mode changeover condition of calibration.2 sound of first motor
The engine towing astern instruction for answering HCU to send starts engine 1 and is calculated in the range of speeds with being dragged to.Gear shifting actuating mechanism pushes the
One sliding sleeve 41 (in figure to the left) is put into gear forward, and gear ring 11 engages in conjunction with the input of damping element.Engine 1 participates in driving.HCU
Power assembly mode: pure engine mode and gang mould is determined according to vehicle driving-cycle data (vehicle demand torque and speed)
Formula, mixed connection mode.
(6) vehicle shift.Vehicle carries out following shift process when reaching shift condition:
A) the second motor 3 is turned round (reduce torque to calibration value or less) clearly, and gear shifting actuating mechanism pushes the second sliding sleeve 42 forward
(in figure to the left) plucks gear, and the speed regulation of the second motor 3 is put into gear further along to revolving speed is calculated, and is combined gear ring 51 to engage with output.Second electricity
Machine 3 restores torque and is directly driven, and avoids power interruption；
B) engine 1 and first motor 2 are turned round clearly, and gear shifting actuating mechanism pushes third sliding sleeve 43 (in figure to the left) to pluck forward
Gear, the speed regulation of first motor 2 are put into gear further along to revolving speed is calculated, and are combined gear ring 21 to engage with first.Engine 1 or first motor 2
Restore torque and driving vehicle is kept off with straight drive；
C) the second motor 3 is turned round clearly, and gear shifting actuating mechanism pushes the second sliding sleeve 42 (in figure to the right) to pluck gear, the second motor backward
3 speed regulation extremely calculate revolving speed, then put into gear backward, are combined gear ring 22 to engage with second.Second motor 3 restore torque and engine 1 and
First motor 2 drives vehicle with gear.
(7) vehicle deceleration.Second motor 3 responds HCU and demarcates the control instruction that torque MAP is sent according to vehicle brake pedal
Brake power generating.If in vehicle deceleration process, when speed reaches the engine misses vehicle speed range of calibration, HCU is sent to engine 1
Flame-out instruction, HCU control gear shifting actuating mechanism push the first sliding sleeve 41 to pluck gear backward, disconnect engine-first motor power list
The connection of member and vehicle.If after vehicle deceleration process, speed is not up to the engine misses vehicle speed range demarcated, do not reach
To the downshift condition of calibration, HCU controls power assembly and restores torque according to torque allocation strategy, drives vehicle.If vehicle deceleration
After process, speed is not up to the engine misses vehicle speed range demarcated, but reaches the downshift condition of calibration, and HCU control is dynamic
The second motor of power assembly 3, first motor 2, engine 1 and gear shifting actuating mechanism etc. carry out downshift, and downshift process is for example following:
A) the second motor 3 is turned round (reduce torque to calibration value or less) clearly, and gear shifting actuating mechanism pushes the second sliding sleeve 42 forward
(in figure to the left) plucks gear, and the speed regulation of the second motor 3 is put into gear further along to revolving speed is calculated, and is combined gear ring 51 to engage with output.Second electricity
Machine 3 restores torque and is directly driven, and avoids power interruption；
B) engine 1 and first motor 2 are turned round clearly, and gear shifting actuating mechanism pushes third sliding sleeve 43 to pluck gear, first motor 2 backward
Speed regulation is put into gear further along to revolving speed is calculated, and gear ring 23 engages in conjunction with third.Engine 1 or first motor 2 restore torque with one
Gear driving vehicle.
C) the second motor 3 is turned round clearly, and gear shifting actuating mechanism pushes the second sliding sleeve 42 (in figure to the right) to pluck gear, the second motor backward
3 speed regulation extremely calculate revolving speed, then put into gear backward, are combined gear ring 22 to engage with second.Second motor 3 restore torque and engine 1 and
First motor 2 drives vehicle with gear.
(8) vehicle stops.After vehicle stops, gear shifting actuating mechanism pushes the first sliding sleeve 41 to neutral gear, pushes the second sliding sleeve
42 are combined gear ring 22 to engage with second, and the gear ring 23 in conjunction with third of third sliding sleeve 43 is pushed to engage.
(9) electric under vehicle.After gear shifting actuating mechanism self-test, each sliding sleeve is pushed into neutral gear.
The invention has the following advantages:
1, the power interruption of power assembly is avoided.
2, engine and driving motor operating condition are optimized, improved efficiency.
3, dynamic property is strong, and vehicle passability is high.
4, entire power assembly is compact-sized, and integrated level is high, is suitable for the 2+3 gear of hybrid dynamic system engine and motor operating condition
The high integration of gearbox.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (5)
1. a kind of hybrid power assembly, which is characterized in that including engine (1), first motor (2), output shaft (5), described
The armature spindle of one motor (2) and the crankshaft of the engine (1) are connected, the armature spindle of the first motor (2) and the speed change
Damping element connection in case, the damping element are equipped with input and combine gear ring (11), and the input combines gear ring (11) can
Pass through first gear (31) connection of the first sliding sleeve (41) and empty set on the output shaft (5).
2. hybrid power assembly according to claim 1, which is characterized in that further include that the second motor (3) and shift execute
Mechanism is fixed with output on the output shaft (5) and combines gear ring (51), is also set with second gear on the output shaft (5)
(32) and at least one shift gear；
The armature spindle and the second sliding sleeve (42) Chang Lian in the gearbox of second motor (3), can be sliding by described second
Set (42) and the output combine gear ring (51) to connect with the output shaft (5)；
The second gear (32) is combined gear ring (22) Chang Lian with second, and described second can pass through described second in conjunction with gear ring (22)
The rotor axis connection of sliding sleeve (42) and second motor (3)；
The first gear (31) is combined gear ring (21) Chang Lian with first, and described first can pass through third sliding sleeve in conjunction with gear ring (21)
(43) it is connect with the output shaft (5)；
Each shift gear correspondence is often connected with gear combination gear ring, and the gear combination gear ring can be slided by corresponding shift
Set is connect with the output shaft (5).
3. hybrid power assembly according to claim 2, which is characterized in that the quantity of the shift gear is one, institute
State shift gear gear ring (23) Chang Lian in conjunction with third, the third combination gear ring (23) can by the third sliding sleeve (43) with
Output shaft (5) connection.
4. hybrid power assembly according to claim 2 or 3, which is characterized in that the gear shifting actuating mechanism is electronic changes
Keep off executing agency or hydraulic gear-shifting executing agency or Pneumatic shift executing agency.
5. a kind of control method of hybrid power assembly, which is characterized in that for as described in any one of claim 2 to 4
Hybrid power assembly, when hybrid power assembly shift, shift control method is as follows:
Second motor (3) is turned round clearly, and the gear shifting actuating mechanism pushes second sliding sleeve (42) to pluck to neutral gear, and described second
Motor (3) speed regulation extremely calculates revolving speed, then second sliding sleeve (42) is pushed and puts into gear and is combined gear ring (51) to connect with the output
It closes, second motor (3) is restored torque and directly driven；
The engine (1) and the first motor (2) are turned round clearly, and the gear shifting actuating mechanism pushes the gearshift sliding sleeve to pluck to sky
Gear, the first motor (2) speed regulation are put into gear and the gear ring in conjunction with the gear to calculating revolving speed, then by gearshift sliding sleeve promotion
Engagement, the engine (1) or the first motor (2) are restored torque and are driven with target gear；
Second motor (3) is turned round clearly, and the gear shifting actuating mechanism pushes second sliding sleeve (42) to pluck to neutral gear, and described second
Motor (3) speed regulation extremely calculates revolving speed, then second sliding sleeve (42) is pushed and puts into gear and is combined gear ring (22) to connect with described second
It closes, second motor (3) restores torque and with the engine (1) and the first motor (2) with the drive of same target gear
It is dynamic.
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| CN109353208B (en) | 2020-08-21 |
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