CN108909433A - Dynamical system for hybrid vehicle - Google Patents
Dynamical system for hybrid vehicle Download PDFInfo
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- CN108909433A CN108909433A CN201810746435.9A CN201810746435A CN108909433A CN 108909433 A CN108909433 A CN 108909433A CN 201810746435 A CN201810746435 A CN 201810746435A CN 108909433 A CN108909433 A CN 108909433A
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- 238000005183 dynamical system Methods 0.000 title claims abstract description 92
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims description 61
- 230000005611 electricity Effects 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims 1
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
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Classifications
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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
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—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 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
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Structure Of Transmissions (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of dynamical systems for hybrid vehicle, are related to motor vehicle driven by mixed power field.Dynamical system for hybrid vehicle of the invention, due to the first planetary gear gear structure using double sun gears, wherein the first sun gear is rotated with input shaft, second sun gear and input shaft are mutually indepedent, second sun gear is by second brake or/and second clutch to realize different motion states, it is matched with the first brake, four to six grades of different transmission ratios when providing engine and motor drive, it is not only simple in structure dynamical system, is at low cost, improve dynamical system fuel economy and accelerating dynamic property.
Description
Technical field
The present invention relates to motor vehicle driven by mixed power field, more particularly to a kind of dynamical system for hybrid vehicle.
Background technique
Currently, the main trend of vehicle development is increasingly becomed as vehicle power source using oil electric mixed dynamic.Oily electricity
The vehicle of hybrid power, generally include one compared to conventional engines have smaller displacement engine and one or two
A motor.It under normal circumstances, can when in low speed situations downward driving (such as urban pavement) or in the case where need Fraquent start
Only to drive vehicle by motor；Vehicle can be driven only with engine when needing to run at high speed, be saved with reaching
The purpose of the energy.In the prior art, the hybrid mode of oil-electric vehicle mainly includes series, parallel and mixed connection
Three kinds of modes.
The structure of dynamical system in existing hybrid vehicle is relatively simple, and adaptability is poor.
Summary of the invention
It is an object of the present invention to provide a kind of structure simple but adaptable moving for hybrid vehicle
Force system.
A further object of the present invention is to dynamical systems to be made can provide biggish reduction ratio, effectively reduce electricity
The size of motivation improves vehicle accelerating ability energy.
On the one hand, the present invention provides a kind of dynamical system for hybrid vehicle, the dynamical system includes hair
Motivation, first motor, the second motor, first planetary gear mechanism, input shaft, first clutch, the first brake；
The engine is connected with the first motor, and the first clutch is set to the first motor and described
Between input shaft, to be cut off by the first clutch or in conjunction with the power between the first motor and the input shaft
Transmission；Second motor is arranged on the input shaft, for driving the input shaft to rotate；
The first planetary gear mechanism includes the first sun gear, first group of planetary gear, second group of planetary gear, the first gear ring
And the first planet carrier that first group of planetary gear and second group of planetary gear share, the external tooth of second group of planetary gear
Wheel is meshed with the internal gear of the external gear of first group of planetary gear and first gear ring respectively, and first sun gear is set
It is placed on the input shaft and first sun gear is rotated with the input shaft, first gear ring is used for transmission described dynamic
The power of Force system output；First brake is arranged between the first planet carrier and the shell of the dynamical system；
Wherein, the first planetary gear mechanism further include with first sun gear coaxial arrangement the second sun gear, described second
Sun gear and the input shaft are mutually indepedent, and the external gear of the external gear of second sun gear and second group of planetary gear
It is meshed；
The dynamical system further includes second brake or/and second clutch：The second brake is configured to work as institute
It states second brake and is in fixed second sun gear when on-position, so that it is protected between the shell of the dynamical system
It holds opposing stationary；The second clutch is configured to make second sun when the second clutch is in engagement state
Wheel is rotated with the input shaft.
Optionally, the second brake is set between second sun gear and the shell of the dynamical system.
Optionally, the second clutch is set between the input shaft and second sun gear.
Optionally, the second clutch is set between the rotor of second motor and second sun gear.
Optionally, second motor is connected by the second planetary gear mechanism with the input shaft, second planet
Gear mechanism includes third sun gear, at least one set of planetary gear, the second gear ring and the second planet carrier.
Optionally, the third sun gear is fixed on the rotor of second motor and rotates together with the rotor,
Second planet carrier is fixed with shell, and second motor is by second gear ring by power transmission to the input shaft.
Optionally, the third sun gear is fixed on shell；Second gear ring is fixed on the rotor of second motor
Upper and rotate together with the rotor, second motor is by second planet carrier by power transmission to the input shaft.
On the other hand, the present invention also provides a kind of dynamical system for hybrid vehicle, the dynamical system packets
Include engine, first motor, the second motor, first planetary gear mechanism, the second planetary gear mechanism, input shaft, the first clutch
Device, second clutch, the first brake, second brake；
The engine is connected with the first motor, and the first clutch is set to the first motor and described
Between input shaft, it can be cut off by the first clutch or in conjunction with the engine and/or the first motor and institute
State the power transmission between input shaft；Second motor is arranged on the input shaft, for driving the input shaft to rotate；
First brake is arranged between second planet carrier and the shell of the dynamical system；
The first planetary gear mechanism includes the first sun gear, first group of planetary gear, the first gear ring and first planet carrier；
First sun gear, which is set on the input shaft, rotates first sun gear with the input shaft；Second row
Star gear mechanism includes the second sun gear, second group of planetary gear, the second gear ring and the second planet carrier；Second sun gear and institute
It is mutually indepedent to state input shaft；Wherein, second gear ring is fixedly linked with the first planet carrier, first gear ring with it is described
Second planet carrier is fixedly linked, and second gear ring is used for transmission the power of the dynamical system output；
First brake is arranged between second planet carrier and the shell of the dynamical system；Second system
Described in dynamic device between the second sun gear and the shell of the dynamical system, the second clutch is set to second sun gear
Between the input shaft.
Optionally, second motor is connected by third planet gear mechanism with the input shaft, the third planet
Gear mechanism includes third sun gear, at least one set of planetary gear, third gear ring and third planet carrier.
Optionally, the third sun gear is fixed on the rotor of second motor and rotates together with the rotor,
The third planet carrier is fixed on shell, and second motor is by the third gear ring by power transmission to the input
Axis；Or
The third sun gear is fixed on shell；The third gear ring is fixed on the rotor of second motor and with institute
It states rotor to rotate together, second motor is by the third planet carrier by power transmission to the input shaft.
Dynamical system for hybrid vehicle of the invention, due to the first planetary gear machine using double sun gears
Structure, wherein the first sun gear is rotated with input shaft, the second sun gear and input shaft are mutually indepedent, and the second sun gear passes through the second system
Dynamic device or/and second clutch are matched, to provide different transmissions with realizing different motion states with the first brake
Than being not only simple in structure dynamical system, being at low cost, and is more adaptable.
Further, the second motor of the invention is connected by the second planetary gear mechanism with input shaft, can pass through row
Star gear mechanism reduces the speed of the second motor, increases torque, is added with effectively reducing the size of the second motor or improving vehicle
Fast performance.
Dynamical system for hybrid vehicle of the invention, due to using mutually matched first planetary gear mechanism
With the second planetary gear mechanism, wherein the first sun gear is rotated with input shaft, the second sun gear and input shaft are mutually indepedent, and second
Sun gear, to realize different motion states, is matched by second brake or/and second clutch with the first brake, with
Different transmission ratios is provided, dynamical system is not only simple in structure, is at low cost, and is more adaptable.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is the schematic diagram of dynamical system according to an embodiment of the invention；
Fig. 2 is the schematic diagram of dynamical system in accordance with another embodiment of the present invention；
Fig. 3 is the schematic diagram of the dynamical system of another embodiment according to the present invention.
Specific embodiment
Embodiment one
Fig. 1 is the schematic diagram of dynamical system according to an embodiment of the invention.As shown in Figure 1, the present embodiment
In the dynamical system for hybrid vehicle include：Engine 1, first motor 2, the second motor 3, first planetary gear machine
Structure 4, input shaft 6, first clutch 7, the first brake 8.Wherein, engine 1 (ICE), first motor 2 (P1) and the second motor
3 (P3) constitute the power source of dynamical system of the invention.Preferably, first motor 2 is integrated starting motor (ISG motor),
Second motor 3 is high-power driving motor (TM motor).First clutch 7, second brake 9 are for realizing power of the invention
The combination and interruption of system transmission power.
Certainly, it will be understood to those skilled in the art that the dynamical system of hybrid vehicle should also further comprise
The differential mechanism, driving wheel of friction speed when having the damper between such as engine 1 and first motor 2, realizing wheel turning
Drive axle and make the wheel of vehicle driving.Dynamical system of the invention can directly connect with above system according to conventional connection
The mode of connecing connects the operation to realize vehicle, these are not the emphasis of technical solution of the present invention, and for the skill of this field
Art personnel are also well known technology, therefore repeat in the present specification and seldom.The tool of each element of dynamical system of the invention
Body connection type and working principle will hereinafter carry out describing in detail and preferably.
It continues to refer to figure 1, engine 1 is connected with first motor 2, and the crankshaft of engine 1 is through damper and the second motor 3
Rotor be connected.First clutch 7 is set between the rotor of first motor 2 and input shaft 6, can by first clutch 7
Power transmission between cutting or combination engine 1 and/or first motor 2 and input shaft 6.First motor 2 have power generation and
Drive two functions, structure and working principle in more related patents oneself seldom repeated here through having a detailed description.It will
Engine 1 is directly connected to first motor 2.First motor 2 can start engine 1, and it is high that engine 1 directly drags first motor 2
Effect power generation.The electric energy of first motor 2 is delivered directly to motor drive, reduces the conversion loss of electric energy-chemical energy.
Second motor 3 is arranged on input shaft 6, for driving input shaft 6 to rotate.Second motor 3 also serves as generator
For recycling vehicle braking energy.To improve gear-driven accuracy, improving NVH performance, three prime mover are preferably used coaxially
Arrangement, in addition to differential mechanism, entire speed changer only has two axis.It further, will be between engine 1 and the second motor 3 by the
The connection of one clutch 7, when the second motor 3 is operated alone, the throw-out-of clutch, 1 drag force of engine would not hinder second
The driving of motor 3, to improve motor drive efficiency.
First planetary gear mechanism 4 includes 41, first groups of the first sun gear, 43, second groups of planetary gear planetary gear 44, first
The shared first planet carrier 46 of gear ring 45 and first group of planetary gear 43 and second group of planetary gear 44, second group of planetary gear 44 it is outer
Gear is meshed with the internal gear of the external gear of first group of planetary gear 43 and the first gear ring 45 respectively, first group of planetary gear 43 it is outer
Gear is also meshed with the external gear of the first sun gear 41 other than being meshed with the external gear of second group of planetary gear 44.First
Sun gear 41, which is set on input shaft 6, rotates the first sun gear 41 with input shaft 6, and specifically, the first sun gear 41 can be with
It is connected on input shaft 6 by spline connection type.First gear ring 45 is used for output power, specifically, outside the first gear ring 45
Gear is meshed with the follower on output shaft, will be transferred to after the input power speed change of the receiving of first planetary gear mechanism 4
Output shaft.First brake 8 is arranged between first planet carrier 46 and the shell of dynamical system, can be with by the first brake 8
First planet carrier 46 is set to keep opposing stationary with shell.
It continues to refer to figure 1, wherein first planetary gear mechanism 4 further includes second with the coaxial arrangement of the first sun gear 41
Sun gear 42, the second sun gear 42 and input shaft 6 are mutually indepedent, and specifically, the first sun gear 41 and the second sun gear 42 are coaxial
It is arranged and the external gear of the second sun gear 42 is meshed with the external gear of second group of planetary gear 44.In order to have the second sun gear 42
There is different motion states, dynamical system is also provided with second brake 9.Second brake 9 is set to 42 He of the second sun gear
Between the shell of dynamical system.Second brake 9 is configured to when second brake 9 is in engagement state to fix second sun
Wheel 42, makes it keep opposing stationary between the shell of dynamical system.Second brake 9 can also be set to the second motor 3
Between stator 32 and the second sun gear 42.
Continue to refer to figure 1, in another preferred embodiment, the second motor 3 by the second planetary gear mechanism 5 with it is defeated
Enter axis 6 to be connected, the second planetary gear mechanism 5 includes third sun gear 51, at least one set of planetary gear, the second gear ring 53 and the second row
Carrier 54.In the present embodiment, it is provided with one group of planetary gear, is third group planetary gear 52.In other embodiments, it can also set
Set multiple groups planetary gear.Second planetary gear mechanism 5 is set between the second motor and input shaft 6, thus it is possible to vary the output of motor
Speed, and then change torque.The structure is larger suitable for 3 power of the second motor, efficient rate area and 1 efficient rate area of engine
The mixed electrical automobile being closer to.
In the present embodiment, third sun gear 51 is fixed on shell, and the second gear ring 53 is fixed on the rotor 31 of the second motor 3
It above and with rotor rotates together, the second motor 3 passes through the second planet carrier 54 for power transmission to input shaft 6.As shown in Figure 1, opening
Dynamic second motor 3.Since the third sun gear 51 in the second planetary gear mechanism 5 is fixed, the rotor 31 of the second motor 3 drives the
The rotation of two gear rings 53.At this point, the output revolving speed of the second planet carrier 54 is：
In above formula, nrIt is the second gear ring 53 i.e. revolving speed of the second motor 3, ncIt is the second planet of the second planetary gear mechanism 5
The output revolving speed of frame 54, α1It is the gear ratio of the second gear ring 53 and third sun gear 51, general α1Value is located between 2 to 3.From upper
Stating formula can be seen that the output revolving speed of the second motor 3 is reduced about 1/3 by the second planetary gear mechanism 5, i.e., increases torque
50%, it efficiently reduces motor size or improves vehicle accelerating ability energy.
In order to require bigger reduction ratio, different connections can be used between the second motor 3 and the second planetary gear mechanism 5
Mode.In a preferred embodiment, the second planetary gear mechanism 5 includes third sun gear 51, at least one set of planetary gear, the
Two gear rings 53 and the second planet carrier 54.In the present embodiment, at least one group planetary gear, referred to as third group planetary gear 52,
It can also be multiple groups planetary gear, and will not be described here in detail in other embodiments.Third sun gear 51 is fixed on turning for the second motor 3
It being rotated together on son and with rotor, the external gear of third sun gear 51 is meshed with the external gear of third group planetary gear 52, and second
Planet carrier is fixed on shell, and the external gear of third group planetary gear 52 is meshed with the internal gear of the second gear ring 53, the second gear ring
53 are connected with input shaft 6, and the second motor 3 passes through the second gear ring 53 for power transmission to input shaft 6.The structure is suitable for the second electricity
3 power of machine is smaller, space is smaller, the higher mixed electrical automobile of revolving speed.
If 3 power of the second motor is big, the power of battery also big plug-in mixed electrical automobile, the of the second motor 3 can be saved
Two planetary gear mechanisms 5 save cost.
It is that the structure of dynamical system is described in detail above, the operating mode of dynamical system is done further below
Description.
Dynamical system shown in FIG. 1 has two grades of transmissions.Since planetary gear construction plays transmission effect in dynamical system,
Therefore, speed is than the ratio that can be abstracted as between 6 revolving speed of input shaft and differential mechanism revolving speed.In the following, with embodiment shown in FIG. 1
For, the operating mode of dynamical system of the invention is made further instructions.The dynamical system of the present embodiment can basis
Traveling actual conditions switch between different operational modes and operational taps.
When the starting of engine 1 and charging, it is attached directly to because of the crankshaft of engine 1 on the rotor of first motor 2, first motor
2 rotations can start engine 1.Conversely, the operating of engine 1 can drive first motor 2 to charge the battery.In the present embodiment
In, because in low speed, major function is power generation to engine 1, and the revolving speed of first motor 2 should be consistent with engine 1, therefore, starts
Machine 1 should be designed as consistent with the efficient revolving speed area of first motor 2.
In the present embodiment, there are two gears for hybrid vehicle tool, and when the first brake 8 combines, second brake 9 is disconnected
When opening, the first planet carrier 46 of first planetary gear mechanism 4 is fixedly connected on dynamical system by the combination of the first brake 8
On shell, by the first gear ring 45 by power transmission to output shaft, dynamical system has a speed ratio at this time, and vehicle is at this time
One grade of mode can be used to that motor is assisted to start or accelerate.At one grade, the gear ratio one of the first gear ring 45 and the first sun gear 41
As be arranged between 2 to 3.When second brake 9 combines, and the first brake 8 disconnects, the second sun gear 42 passes through the second braking
The combination of device 8 is fixedly connected on the shell of dynamical system, by the first gear ring 45 by power transmission to output shaft, at this time at vehicle
In two grades of modes, can be used to drive vehicle high-speed cruise or efficiency power generation.
In one grade or second gear, if only the second motor 3 is in running order, for one grade of pure electric vehicle or second gear；Such as
Fruit only has engine 1 in running order, then is one grade of engine or second gear；If engine 1 and the second motor 3 are in work
State, first motor 2 are in halted state, then are mixing one grade or second gear in parallel；If engine 1, first motor 2 and second
Motor 3 is in working condition, and engine 1 drives first motor 2 to generate electricity, and first motor 2 arrives power storage after generating electricity
Battery management unit directly feeds the second motor 3, then is mixing series connection one grade or second gear.Vehicle is as follows in shift process：When
When speed is higher than preset value, the first brake 8 is disconnected, and second brake 9 combines, and the speed ratio of dynamical system changes, and completes to change
Gear.Specifically, there are four gears for the dynamical system tool of the present embodiment, are respectively：Electronic one grade, electronic second gear, one grade of engine
With engine second gear.Dynamical system of the invention can realize above-mentioned various control mode, improve VE Vehicle Economy.
Mode is operated alone in engine 1, and first clutch 7 engages, and engine 1 can pass to all or part of power
Input shaft 6, engine 1 are that can also distribute certain power to charge the battery through first motor 2 when being operated alone.It is run according to vehicle
The remaining power of engine 1 can be distributed to first motor 2, to improve fuel economy by situation.It, can when throttle is larger
It is 0 by the moment of torsion control of first motor 2, all 1 power of engine is distributed into input shaft 6, guarantees that vehicle starts acceleration.
Second motor 3 is operated alone mode (electric-only mode), and first clutch 7 disengages, the first brake 8 or the second system
Dynamic device 9 combines, and drives input shaft 6 by the second motor 3.
Engine 1 and the second motor 3 while drive mode (including paralleling model and series model), first clutch 7 connects
It closes, while starting generator and the second motor 3, the torque of engine 1 subtracts after the torque of dragging first motor 2 through the first clutch
Device 7 passes on input shaft 6.The torque of second motor 3 is direct or is also superimposed upon on input shaft 6 after planetary gear mechanism amplifies.
Torque superposition is carried out, output power is increased.If the torque for controlling first motor 2 is 0, maximum can reach on input shaft 6 at this time
Input torque.
Vehicle braking energy take-back model, when vehicle deceleration is braked or slided, the first brake 8 is combined, vehicle inertia
The first gear ring 45, the first sun gear 41, input shaft 6 and the power generation of 3 rotor of the second motor are dragged through differential mechanism, output shaft, realizes system
Kinetic energy recycling, in vehicle energy recycling, it is preferable that use one grade of progress energy regenerating, efficiency is higher.
Embodiment two
Fig. 2 is the schematic diagram of dynamical system in accordance with another embodiment of the present invention.As shown in Fig. 2, in this reality
It applies in example, the basic structure of dynamical system does not change, and only cancels the second brake 9 in embodiment illustrated in fig. 1, changes into
Second clutch 10.Second clutch 10 be configured to when second clutch 10 is in engagement state so that the second sun gear 42 with
Input shaft 6 rotates.Second clutch 10 is set between input shaft 6 and the second sun gear 42.In the present embodiment, vehicle can be real
For existing mode as the mode realized in embodiment one, unique distinctive points are when second clutch 10 engages second
Sun gear 42 is rotated together with input shaft 6, at this point, two sun gears are rotated with input shaft 6 together, is equivalent to the first planet tooth
It takes turns and is locked inside mechanism 4, the final transmission ratio of dynamical system is unrelated with first planetary gear mechanism 4, is at this time second gear.
In other embodiments, second clutch 10 is set between the rotor of the second motor 3 and the second sun gear 42.When
When second clutch 10 is set between the rotor of the second motor 3 and the second sun gear 42, the rotor of second clutch 10 with it is defeated
Enter axis 6 to be directly connected to, it is no longer necessary to the second planetary gear mechanism 5.
Embodiment three
In other preferred embodiments, dynamical system further includes second brake 9 and second clutch 10, is specifically come
It says, exactly merges the scheme in Fig. 1 and Fig. 2.Second brake 9 is configured to be in braking shape when second brake 9
To fix the second sun gear 42 when state, it is made to keep opposing stationary between the shell of dynamical system, second clutch 10 configures
At when second clutch 10 is in engagement state so that the second sun gear 42 with input shaft 6 rotate.It using the above structure can be with
Realize three gear pattern of vehicle, it is specific as follows, when the first brake 8 combines, and second brake 9 and second clutch 10 disconnect,
The first planet carrier 46 of first planetary gear mechanism 4 is fixedly connected on the shell of dynamical system by the combination of the first brake 8
On, by the first gear ring 45 by power transmission to output shaft, dynamical system has a speed ratio at this time, is at this time one grade, can use
To assist motor to start or accelerate.At one grade, the gear ratio of the first gear ring 45 and the first sun gear 41 is generally located on 2 to 3
Between.When second brake 9 combines, and the first brake 8 and second clutch 10 disconnect, the second sun gear 42 passes through the second system
The combination of dynamic device 9 is fixedly connected on the shell of dynamical system, by the first gear ring 45 by power transmission to output shaft, power at this time
System has another speed ratio, is at this time second gear, can be used to drive vehicle high-speed cruise or efficiency power generation.When the second clutch
Device 10 engages, and when the first brake 8 and second brake 9 disconnect, the second sun gear 42 is rotated together with input shaft 6, at this point, two
A sun gear is rotated with input shaft 6 together, is equivalent to inside a first planetary gear mechanism 4 and is locked, the final biography of dynamical system
It is dynamic more unrelated than with first planetary gear mechanism 4, it is at this time three gears.
Example IV
Fig. 3 is the schematic diagram of the dynamical system of another embodiment according to the present invention.As shown in figure 3, dynamical system
System includes engine 1, first motor 2, the second motor 3, first planetary gear mechanism 4, the second planetary gear mechanism 5, input shaft
6, first clutch 7, second clutch 10, the first brake 8, second brake 9.Engine 1 is connected with first motor 2,
First clutch 7 is set between first motor 2 and input shaft 6, and engine can be cut off or combined by first clutch 7
Power transmission between 1 and/or first motor 2 and input shaft 6；Second motor 3 is arranged on input shaft 6, for driving input
Axis 6 rotates；First brake 8 is arranged between the second planet carrier 54 and the shell of dynamical system.
With continued reference to Fig. 3, first planetary gear mechanism 4 includes the first sun gear 41, first groups of planetary gears 42, first gear rings
43 and first planet carrier 44.First sun gear 41, which is set on input shaft 6, rotates the first sun gear 41 with input shaft 6.The
The external gear of one sun gear 41 is meshed with the external gear of first group of planetary gear 42, and the external gear of first group of planetary gear 42 is also with
The internal gear of one gear ring 43 is meshed.Second planetary gear mechanism 5 includes 51, second groups of planetary gears 52, second of the second sun gear
Gear ring 53 and the second planet carrier 54；Second sun gear 51 and input shaft 6 are mutually indepedent.The external gear and second of second sun gear 51
The external gear of group planetary gear 52 is meshed, and internal gear of the external gear of second group of planetary gear 52 also with the second gear ring 53 is meshed.
First planetary gear mechanism 4 and the second planetary gear mechanism 5 are connected with each other, specifically, the second gear ring 53 and first planet carrier 44
It is fixedly linked, the first gear ring 43 is fixedly linked with the second planet carrier 54, and the second gear ring 53 is used for transmission the dynamic of dynamical system output
Power.First brake 8 is arranged between the second planet carrier 54 and the shell of dynamical system；Second brake 9 is set to second too
It between sun wheel 51 and the shell of dynamical system, or is set between the second sun gear 51 and stator 32, second clutch 10 is set
It is placed between the second sun gear 51 and input shaft 6.
Using the above structure, the third gear mode of vehicle equally may be implemented, it is specific as follows, when the first brake 8 combines, the
When two brakes 9 and second clutch 10 disconnect, the second planet carrier 54 of the second planetary gear mechanism 5 passes through the first brake 8
Combination be fixedly connected on the shell of dynamical system, by first planet carrier 44 by power transmission to output shaft, dynamical system at this time
System has a speed ratio, is at this time one grade, can be used to that motor is assisted to start or accelerate.When second brake 9 combines, first is made
When dynamic device 8 and second clutch 10 disconnect, the second sun gear 51 is fixedly connected on dynamical system by the combination of second brake 9
Shell on, by the second gear ring 53 by power transmission to output shaft, it is at this time two that dynamical system, which has another speed ratio, at this time
Gear can be used to drive vehicle high-speed cruise or efficiency power generation.When second clutch 10 engages, the first brake 8 and second is made
When dynamic device 9 disconnects, the second sun gear 51 is rotated together with input shaft 6, at this point, two sun gears are rotated with input shaft 6 together, phase
When in inside first planetary gear mechanism 4 lock, the final transmission ratio of dynamical system is unrelated with first planetary gear mechanism 4,
It is at this time three gears.About other operational modes, identical as the principle in embodiment one, and will not be described here in detail.
In one further embodiment, the second motor 3 is connected by third planet gear mechanism with input shaft 6, the
Three planetary gear mechanisms include third sun gear, at least one set of planetary gear, third gear ring 5 and third planet carrier.Specifically, third
Sun gear is fixed on the rotor 31 of the second motor 3 and rotates together with rotor 31, and the second motor 3 passes through third gear ring for power
It is transmitted to input shaft 6；It can also be that third sun gear is fixed on shell；Third gear ring be fixed on the rotor of the second motor 3 and
It is rotated together with rotor, the second motor 3 passes through third planet carrier for power transmission to input shaft 6.
Further, such as reason battery energy storage system is also provided with using the hybrid vehicle of dynamical system of the invention
System, battery management system that energy-storage system is managed etc..In this way, the second motor 3 and the electric power of first motor 2 can be direct
It is supplied by managing battery energy storage system.And first motor 2 can be carried out by engine 1 to the reason battery energy storage system
Charging.These Energy Management System are not emphasis of the invention, not described here any more.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (10)
1. a kind of dynamical system for hybrid vehicle, which is characterized in that the dynamical system includes engine, the first electricity
Machine, the second motor, first planetary gear mechanism, input shaft, first clutch, the first brake；
The engine is connected with the first motor, and the first clutch is set to the first motor and the input
Between axis, to be cut off by the first clutch or be passed in conjunction with the power between the first motor and the input shaft
It is defeated；Second motor is arranged on the input shaft, for driving the input shaft to rotate；
The first planetary gear mechanism include the first sun gear, first group of planetary gear, second group of planetary gear, the first gear ring and
The first planet carrier that first group of planetary gear and second group of planetary gear share, the external gear point of second group of planetary gear
It is not meshed with the internal gear of the external gear of first group of planetary gear and first gear ring, first sun gear is set to
Rotate first sun gear with the input shaft, first gear ring is used for transmission the dynamical system
The power of system output；First brake is arranged between the first planet carrier and the shell of the dynamical system；Wherein,
The first planetary gear mechanism further includes the second sun gear with first sun gear coaxial arrangement, second sun gear
It is mutually indepedent with the input shaft, and the external gear of second sun gear and the external gear of second group of planetary gear are mutually nibbled
It closes；
The dynamical system further includes second brake or/and second clutch：The second brake is configured to when described the
Two brakes are in fixed second sun gear when on-position, so that it keeps phase between the shell of the dynamical system
To static；The second clutch be configured to make when the second clutch is in engagement state second sun gear with
The input shaft rotation.
2. dynamical system according to claim 1, which is characterized in that
The second brake is set between second sun gear and the shell of the dynamical system.
3. dynamical system according to claim 1, which is characterized in that
The second clutch is set between the input shaft and second sun gear.
4. dynamical system according to claim 1, which is characterized in that
The second clutch is set between the rotor of second motor and second sun gear.
5. dynamical system according to any one of claim 1-3, which is characterized in that
Second motor is connected by the second planetary gear mechanism with the input shaft, and second planetary gear mechanism includes
Third sun gear, at least one set of planetary gear, the second gear ring and the second planet carrier.
6. dynamical system according to claim 5, which is characterized in that
The third sun gear is fixed on the rotor of second motor and rotates together with the rotor, second planet
Frame is fixed with shell, and second motor is by second gear ring by power transmission to the input shaft.
7. dynamical system according to claim 5, which is characterized in that
The third sun gear is fixed on shell；Second gear ring is fixed on the rotor of second motor and with described turn
Son rotates together, and second motor is by second planet carrier by power transmission to the input shaft.
8. a kind of dynamical system for hybrid vehicle, which is characterized in that the dynamical system includes engine, the first electricity
Machine, the second motor, first planetary gear mechanism, the second planetary gear mechanism, input shaft, first clutch, second clutch,
One brake, second brake；
The engine is connected with the first motor, and the first clutch is set to the first motor and the input
Between axis, can be cut off by the first clutch or in conjunction with the engine and/or the first motor with it is described defeated
Enter the power transmission between axis；Second motor is arranged on the input shaft, for driving the input shaft to rotate；It is described
First brake is arranged between second planet carrier and the shell of the dynamical system；
The first planetary gear mechanism includes the first sun gear, first group of planetary gear, the first gear ring and first planet carrier；It is described
First sun gear, which is set on the input shaft, rotates first sun gear with the input shaft；The second planet tooth
Taking turns mechanism includes the second sun gear, second group of planetary gear, the second gear ring and the second planet carrier；Second sun gear with it is described defeated
It is mutually indepedent to enter axis；Wherein, second gear ring is fixedly linked with the first planet carrier, first gear ring and described second
Planet carrier is fixedly linked, and second gear ring is used for transmission the power of the dynamical system output；
First brake is arranged between second planet carrier and the shell of the dynamical system；The second brake
Between second sun gear and the shell of the dynamical system, the second clutch is set to second sun gear and institute
It states between input shaft.
9. dynamical system according to claim 8, which is characterized in that
Second motor is connected by third planet gear mechanism with the input shaft, and the third planet gear mechanism includes
Third sun gear, at least one set of planetary gear, third gear ring and third planet carrier.
10. dynamical system according to claim 9, which is characterized in that
The third sun gear is fixed on the rotor of second motor and rotates together with the rotor, the third planet
Frame is fixed on shell, and second motor is by the third gear ring by power transmission to the input shaft；Or
The third sun gear is fixed on shell；The third gear ring is fixed on the rotor of second motor and with described turn
Son rotates together, and second motor is by the third planet carrier by power transmission to the input shaft.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810746435.9A CN108909433B (en) | 2018-07-09 | 2018-07-09 | Powertrain for hybrid vehicle |
| PCT/CN2019/078181 WO2020010869A1 (en) | 2018-07-09 | 2019-03-14 | Power system for hybrid vehicles |
| EP19835046.4A EP3805029B1 (en) | 2018-07-09 | 2019-03-14 | Power system for hybrid vehicles |
| US17/259,103 US11299027B2 (en) | 2018-07-09 | 2019-03-14 | Power system for hybrid vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810746435.9A CN108909433B (en) | 2018-07-09 | 2018-07-09 | Powertrain for hybrid vehicle |
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| CN108909433A true CN108909433A (en) | 2018-11-30 |
| CN108909433B CN108909433B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810746435.9A Active CN108909433B (en) | 2018-07-09 | 2018-07-09 | Powertrain for hybrid vehicle |
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