CN106183780A - The coaxial coupling drive system of dual planetary gear system bi-motor - Google Patents
The coaxial coupling drive system of dual planetary gear system bi-motor Download PDFInfo
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- CN106183780A CN106183780A CN201610786296.3A CN201610786296A CN106183780A CN 106183780 A CN106183780 A CN 106183780A CN 201610786296 A CN201610786296 A CN 201610786296A CN 106183780 A CN106183780 A CN 106183780A
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- motor
- train
- gear
- lock unit
- planet
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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
- 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 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 with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—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
- B60K6/28—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 electric energy storing means, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a kind of dual planetary gear system coaxial coupling drive system of bi-motor, including bi-motor, double star gear train etc., epicyclic train includes gear ring, planet carrier, sun gear, the rotor of the first motor is connected with the gear ring of first planet gear train, the rotor of the second motor is respectively by the sun gear of lock unit with first planet gear train, the sun gear of the second epicyclic train is connected, the planet carrier of this two planet circular system is connected with output shaft, the gear ring of the second planet circular system is connected with housing, output shaft is connected with the input of deceleration differential, the outfan of deceleration differential and two wheels are connected by two semiaxis, motor control assembly is connected with energy storage device and carries out electric energy transmission, motor control assembly the most respectively with the first motor, second motor is connected and exports control instruction.The present invention has more preferable car load dynamic property, Energy Consumption Economy, region and the adaptive feature of purposes.
Description
Technical field
The present invention relates to drive system technical field, in particular it relates to a kind of dual planetary gear system bi-motor coaxially couples
Drive system.
Background technology
Automobile power new forms of energy, electrified emphasis and the focus having become global evolution.
Existing electric automobile, the single pure driving scheme of motor of general employing.Motor running point and the strong coupling of vehicle operating point
Close, electric drive efficiency is difficult to optimize, make vehicle once charge course continuation mileage shorten.Owing to the torque raising of single motor can affect system
System cost, therefore some vehicles use to slow down motor large speed ratio and increase the scheme of square, but this scheme to there is motor the highest
Speed runs the security risk brought.
Series-parallel hybrid electric system, relative to Cascade hybrid power driving system and parallel connection type hybrid power system, has pole
Big performance advantage.But existing series-parallel hybrid electric system, such as the THS of the most representational Toyota Motor company
(Toyota's hybrid power system), THS2 (second filial generation Toyota hybrid power system) hybrid power system, the EP of General Motors Corporation
(electrical parallel connection), AHS2 (second filial generation advanced person's hybrid power system) system, power coupling mechanism structure is complicated, manufacturing cost is high.
Through the literature search of prior art being found, a notification number is CN201021118Y, patent name is " series parallel type
Hybrid vehicle " Chinese patent, this patented technology mainly includes electromotor, and this electromotor is by a clutch and electronic
Machine is mechanically connected, and this motor is mechanically connected with a drive axle again, and separately, described electromotor is connected with a generator mechanical again, should
Electromotor is then electrically connected by electricity generating controller and accumulator battery, additionally, described motor also by one drive controller with
Described accumulator battery is electrically connected ", its weak point is: under pure electric drive mode, motor running point and vehicle operating point
Close coupling, under certain speed, motor speed is fixed, and its efficiency is difficult to optimize；Under combination drive pattern, travel at vehicle
During can not realize the speed governing optimal control to electromotor, system energy efficiency is difficult to further improve；Requirement motor turns
Square is big, and motor volume is big, weight big, also makes system cost high, and otherwise car load low-speed dynamic is the best, if using big retarding
The drive axle of ratio solves this problem, then need more high-revolving motor and there is security risk；It is difficult to meet different geographical
Use requirement, make this system be primarily adapted for use in city vehicle.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide a kind of dual planetary gear system bi-motor and coaxially couple
Drive system.
The dual planetary gear system coaxial coupling drive system of bi-motor provided according to the present invention, including: the first motor, first
Epicyclic train, the first lock unit, the second motor, the second lock unit, the second epicyclic train, output shaft, energy storage device and
Motor control assembly；Wherein:
Described first motor is connected with first planet gear train, described first planet gear train also by the first lock unit with
Second motor is connected, and described second motor is connected by the second lock unit and the second epicyclic train, and described first planet tooth
Train, the second epicyclic train are all connected with output shaft；Described motor control assembly is connected with energy storage device, and can send defeated
Go out control instruction to the first motor, the second motor.
Preferably, described first planet gear train, the second epicyclic train all include ring gear, planet carrier and the sun
Wheel；Wherein:
The rotor of the first motor is connected with the ring gear of first planet gear train, and the rotor of the second motor is respectively by the
One lock unit, the second lock unit are connected with sun gear, the sun gear of the second epicyclic train of first planet gear train, and second
The ring gear of epicyclic train is connected with housing；The planet carrier of first planet gear train, the second epicyclic train planet carrier equal
Be connected with output shaft, and can by controlling the first lock unit, the combination of the second lock unit realizes the second motor turn with separating
Son is to the sun gear of first planet gear train, the power transmission of the sun gear of the second epicyclic train.
Preferably, also including: electromotor and clutch, the crankshaft output end of electromotor is connected with the input of clutch
Connecing, the rotor of the first motor is connected with the outfan of clutch.Infinitely variable speeds is coaxially coupled with the dual planetary gear system that this realizes
Series-parallel hybrid electric system.
Preferably, also including: brake lock device, one end of described brake lock device is with first planet gear train too
Sun wheel is connected, and the other end of brake lock device is connected with housing.
Preferably, also including: starter motor, described starter motor is by starting gear ring and the crankshaft output end phase of electromotor
Even.Thus realize starting electromotor under the specified conditions such as the system failure, low temperature.
Preferably, also include: hybrid power system ECU and pure electric drive ECU, described hybrid power system
ECU and pure electric drive ECU are for electromotor, motor control assembly, energy storage device, clutch, the first synchronization
Device, the second lock unit and brake lock device are controlled；Specifically, including: realize coordinate control, full-vehicle control, energy
Management, regenerative braking or slide, fault diagnosis, faults-tolerant control, data management communication, demarcate monitoring.Described hybrid power system
ECU, pure electric drive ECU can be independently arranged or its function be integrated into other control of described system or vehicle
In device.
Preferably, described first planet gear train, the structure of the second epicyclic train include: have three power transmission ends
Single epicyclic train, multiple rows of coupling epicyclic train or comprise the Planetary Gear Transmission of epicyclic train and driving-chain
Any one in set composite；
Described first lock unit, the structure of the second lock unit are to have the arrangement of clutch combined with released state；Described
One lock unit is arranged between the rotor of the first motor and the ring gear of first planet gear train, or is arranged at first planet tooth
Between planet carrier and the output shaft of train.
Preferably, described motor control assembly includes: the first drive and control of electric machine module and the second drive and control of electric machine mould
Block；Wherein, described motor control assembly is integrated or split type absolute construction；
Described energy storage device includes: power accumulator, super capacitor, flying wheel battery, power accumulator and super capacitor
Composite power source, any one being provided with in the accumulation power supply of external charge device.
Preferably, also including: deceleration differential, the input of described deceleration differential is connected with output shaft, described deceleration
The outfan of differential mechanism is connected with corresponding two wheels by two semiaxis.
Compared with prior art, the present invention has a following beneficial effect:
1, present invention eliminates variator, it is achieved that infinitely variable speeds, structure are tightly played, are prone to modularized design, are improved it
Car load carry property, improve the comfortableness of driving and reduce driver's labor intensity.
2, by the rotating speed of the second motor is controlled, can realize the first motor work according to the operator of epicyclic train
And/or the stepless speed regulation of electromotor, so that system no matter equal energy in pure electric drive is applied or in combination drive is applied
Reach optimal system effectiveness.
3, the present invention increases square by the second epicyclic train to the deceleration of the second motor dexterously, power transmission controls, right
The brake lock of the sun gear of first planet gear train controls, it is achieved that motor miniature high-speed, assembly miniaturization, and achieves
The direct drive pattern of electromotor, to realize the functions such as limp-home, makes system weight, size, cost significantly reduce, fault-tolerant energy
Power significantly improves.While having reached the dynamic property that fuel combustion vehicle is suitable, motor torque can reduce more than 50%, and vehicle is not to
All it is suitable for geographical environment and road conditions (e.g., urban road, intercity road vehicle, highway) and has significant performance excellent
Gesture.
4, the high-power big torque request of the present invention the second motor is greatly lowered, shifter based on existing vehicle,
The ripe parts such as clutch, travelling gear and mode of operation thereof, thus reduce development difficulty, be prone to industrialization realization.
5, present invention dramatically reduces clutch to combine and the frequency separated, and achieve synchronization combination, maximum journey
Avoid the wear damage of clutch degree, reduce maintenance cost.Reduced energy storage device by series hybrid operational mode
High-power service requirement, owing to energy storage device is fault rate and cost ratio in hybrid power system and pure power drive system
The highest parts, therefore reduce further system cost and maintenance cost.Pass through infinitely variable speeds, it is possible to decrease motor speed,
Improve the reliability of motor while optimizing electric efficiency, extend its life-span.Coaxial coupling, can significantly reduce system vibration and
Noise, improves reliability and comfortableness further.
6, hybrid power and pure electric drive platform altogether.Power drive system of the present invention can be applied as pure power drive system, collection
It is hybrid power system, so that the unit of the application present invention can unify new-energy automobile after becoming electromotor and clutch
Powertrain platform.
7, compared with the most famous like product, fractional energy savings is higher, the ratio of performance to price is higher, has more the market competition excellent
Gesture, be easier to industrialization realize.The system of the present invention is applicable to various road conditions, different geographical, and Schema control is than existing skill
Art is more flexible, makes the motor vehicle driven by mixed power of the application present invention, the dynamic property of pure electro-motive vehicle, energy economy and harmful row
Unconventional and unrestrained arrived comprehensive optimal, be significantly better than train, parallel system and existing combined hybrid system and existing single motor or
The pure power drive system of Double-motor direct drive.The rate of economizing gasoline of the motor vehicle driven by mixed power of the application present invention is up to more than 45%, relative to string
Connection and parallel connection type hybrid power system, rate of economizing gasoline can improve 25% and 20% respectively, relative to based on Toyota of Japan and AM General
The planetary gears hybrid power system configuration of motor corporation, rate of economizing gasoline can improve about 3～5%, dynamic property and driving smooth-going
Property be better than existing fuel combustion vehicle, driver's labor intensity significantly reduces, the ratio of performance to price be higher than prior art 30%.Due to this
The infinitely variable speeds feature of bright system, the hybrid power system of the present invention can be used for the city vehicle of different geographical, to long-distance transport
Vehicle also will have the rate of economizing gasoline of more than 20%.The course continuation mileage of the pure electric vehicle of the application present invention can extend more than 10%.
Accompanying drawing explanation
By the detailed description non-limiting example made with reference to the following drawings of reading, the further feature of the present invention,
Purpose and advantage will become more apparent upon:
The dual planetary gear system coaxial coupling drive system of bi-motor (embodiment one, the four mould duplicate rows that Fig. 1 provides for the present invention
Star gear train coaxially couples hybrid drive system in type of multiple series connection stepless speed change) structural representation.
Fig. 2 is the external electrical connection diagram of the hybrid power system ECU of the embodiment of the present invention one.
Fig. 3 is the block diagram of the hybrid power system ECU of the embodiment of the present invention one.
Fig. 4 is the hybrid power system control flow chart of the embodiment of the present invention one.
The dual planetary gear system coaxial coupling drive system of bi-motor (embodiment two, the five mould duplicate rows that Fig. 5 provides for the present invention
Star gear train coaxially couples hybrid drive system in type of multiple series connection stepless speed change) structural representation.
Dual planetary gear the system coaxial coupling drive system of bi-motor (embodiment three, the bimodulus duplicate rows that Fig. 6 provides for the present invention
Star gear train bi-motor coaxially couples pure power drive system) structural representation.
The dual planetary gear system coaxial coupling drive system of bi-motor (embodiment five, the three mould duplicate rows that Fig. 7 provides for the present invention
Star gear train bi-motor coaxially couples pure power drive system) structural representation.
In figure:
1-electromotor；
2-clutch；
3-the first motor；
The rotor 31 of 31-the first motor；
4-first planet gear train；
The ring gear of 41-first planet gear train；
The planet carrier of 42-first planet gear train；
The sun gear of 43-first planet gear train；
5-the second motor；
The rotor of 51-the second motor；
6-the second epicyclic train；
The ring gear of 61-the second epicyclic train；
The planet carrier of 62-the second epicyclic train；
The sun gear of 63-the second epicyclic train；
71-the first lock unit；
72-the second lock unit；
8-deceleration differential；
9-semiaxis；
10-wheel；
11-energy storage device；
12-motor control assembly；
13-starter motor；
14-brake lock device；
15-output shaft.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in the technology of this area
Personnel are further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that, the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, it is also possible to make some changes and improvements.These broadly fall into the present invention
Protection domain.
The dual planetary gear system coaxial coupling drive system of bi-motor provided according to the present invention, including: bi-motor, double star tooth
Trains etc., epicyclic train includes the gear ring of gear ring, planet carrier, sun gear, the rotor of the first motor and first planet gear train
Being connected, the rotor of the second motor is respectively by lock unit and the sun gear of first planet gear train, the second epicyclic train
Sun gear is connected, and the planet carrier of this two planet circular system is connected with output shaft, and the gear ring of the second planet circular system is connected with housing
Connecing, output shaft is connected with the input of deceleration differential, and the outfan of deceleration differential and two wheels are by two semiaxis
Being connected, motor control assembly is connected with energy storage device and carries out electric energy transmission, and motor control assembly is electric with first the most respectively
Machine, the second motor are connected and export control instruction.
Below in conjunction with specific embodiment, the present invention done more detailed explanation.
Embodiment one
As it is shown in figure 1, the present invention four mould dual planetary gear coaxially couples hybrid drive system in type of multiple series connection stepless speed change
(embodiment one), including: electromotor 1, clutch the 2, first motor 3, first planet gear train the 4, first lock unit the 71, second electricity
Machine the 5, second lock unit the 72, second epicyclic train 6, output shaft 15, energy storage device 11 and motor control assembly 12, described first
Epicyclic train includes that ring gear, planet carrier and sun gear, described second epicyclic train include ring gear, planet carrier and the sun
Wheel, electromotor 1 is connected with the rotor 31 of the first motor 2 by clutch 2, rotor 31 and the first planet gear of the first motor
The ring gear 41 of system is connected, and the rotor 51 of the second motor is respectively by the sun of the first lock unit 71 with first planet gear train
Wheel 43 is connected, is connected with the sun gear 63 of the second epicyclic train by the second lock unit 72, the second epicyclic train
Ring gear 61 is connected with housing, and the planet carrier 62 of planet carrier 42, second epicyclic train of first planet gear train is all with defeated
Shaft 15 is connected, by controlling the combination of first lock unit the 71, second lock unit 72 and separating the rotor realizing the second motor
51 to first planet gear train sun gear the 43, second epicyclic trains sun gear 63 power transmission control so that realize with
The power transmission of output shaft 15 controls, and motor control assembly 12 is connected with energy storage device 11 and carries out electric energy transmission, motor control
Device 12 processed is connected with first motor the 3, second motor 5 and exports control instruction the most respectively.
Described clutch 2 is automatically controlled dry clutch.
Described first planet gear train the 4, second epicyclic train 6 is the single planetary gear with three power transmission ends
System, multiple rows of coupling epicyclic train or comprise the Planetary Gear Transmission set composite of epicyclic train and driving-chain.
Described energy storage device 11 is power accumulator, super capacitor, flying wheel battery, power accumulator are answered with super capacitor
Close power supply or be provided with the energy storage power device of external charge device.
The crankshaft output end of described electromotor 1 is provided with starter motor 13, and this starter motor is by being connected with crankshaft output end
Start gear ring be connected with the crankshaft output end of electromotor 1 and realize under the specified conditions such as the system failure, low temperature start send out
Motivation 1.
Described motor control assembly 12 comprises the first drive and control of electric machine function and the second drive and control of electric machine function, and is
Integral structure or split type absolute construction, also can comprise such as other control function such as DC/DC, electric powered steering, automatically controlled air-conditioning.
Described four mould dual planetary gear systems coaxially couple in hybrid drive system in type of multiple series connection stepless speed change be provided with mixed
Close dynamical system ECU.With reference to Fig. 2, this hybrid power system ECU and ignition key switch, 12V/24V assist electricity
Source, accelerator pedal, brake pedal, gear change hand lever, vehicle speed sensor, described electromotor 1, described motor control assembly 12, described
Energy storage device 11, described clutch 2, described first lock unit 71, described second lock unit 72 and the adnexa system of vehicle configuration
System electrically connects such as DC/DC, charger, electric power steering, electric air-conditioning system, abs braking system, motor heat management system etc.
Connect.With reference to Fig. 3, this hybrid power system ECU includes signal input, communication interface, output control, power supply, computing, examines
The circuit such as disconnected protection, storage, and be used for described electromotor 1, described motor control assembly 12, described energy storage device 11, described
Clutch 2, described first lock unit 71, described second lock unit 72 coordinate control and full-vehicle control, energy management, again
Raw braking or slide, fault diagnosis, faults-tolerant control, data management communication, demarcate the software of monitoring etc., this hybrid power system electricity
Control unit is independently arranged, or its function is integrated in other control device of described system or vehicle.
The work process of the present embodiment and operation principle be:
System parameter setting: the power of electromotor 1, the first motor 3 power >=running conditions of vehicle needed for average merit
Rate.Power needed for the power >=running conditions of vehicle of the second motor 5.The peak torque of the first motor 3 >=starting electromotor 1 is wanted
The torque asked, the peak torque of the second motor 5 × (number of teeth of the ring gear 61 of 1+ the second epicyclic train/its sun gear 63
The number of teeth) torque capacity of >=power performance index request.The peak power+the of power >=the first motor 3 of energy storage device 11
The peak power of two motors 5.
Stepless speed regulation principle: according to turning between ring gear 41, sun gear 43 and the planet carrier 42 of first planet gear train 4
Speed relational expression, under arbitrary speed (rotating speed of the input of corresponding arbitrary deceleration differential 8), ties at the first lock unit 71
When conjunction, the second lock unit 72 separate, by controlling the rotating speed of the second motor 5, can be by the ring gear 41 of first planet gear train 4
Rotational speed regulation at any desired rotating speed.When clutch 2 in an ON state time, the ring gear 41 of first planet gear train 4
Rotating speed i.e. the rotating speed of electromotor 1.So, under any speed, can be to starting by controlling the rotating speed of the second motor 5
Machine 1 realizes stepless speed regulation so that it is run under optimum speed, it is achieved the optimization of the oil-saving discharging-reducing of electromotor 1.When clutch 2
When being in released state, then realize the first motor 3 used heat stepless speed regulation and control.
Dual planetary gear system coaxial coupling multimode operation logic:
Single motor electric-only mode is as follows: controls electromotor 1 and is in stopped status, controls clutch 2 and is in released state,
Control that the first lock unit 71 is in neutral position (that is, released state), the second lock unit 72 is in file location and (that is, combines shape
State) after, the sun gear 43 of first planet gear train 4 is in free idling conditions, the second motor 5 by the second lock unit 72, the
Power transmission is carried out between two epicyclic trains 6, output shaft 15 and the input of deceleration differential 8.
Bi-motor electric-only mode is as follows: controls electromotor 1 and is in stopped status, controls clutch 2 and is in released state,
Control that the first lock unit 71 is in file location (that is, bonding state), the second lock unit 72 is in neutral position and (that is, separate shape
State) after, the sun gear 63 of the second epicyclic train freely dallies, and the first motor 3 is carried out with the gear ring 41 of first planet gear train
Power transmits, and the second motor 5 carries out power transmission, through first planet gear train 4 coupling with the sun gear 43 of first planet gear train 4
Close the planet carrier 42 of epicyclic train 4, and then carry out power transmission through the input of output shaft 15 with deceleration differential 8.This
Under pattern, by the rotating speed of a motor in first motor the 3, second motor 5 is controlled, it is possible to achieve to another motor
Stepless speed regulation, thus reach to optimize the purpose of system effectiveness, and it is avoided that the security risk that the long-term high-speed cruising of motor brings.
Series hybrid drive pattern is as follows: controls electromotor 1 and is in running status, controls clutch 2 and is in bonding state,
Control that the first lock unit 71 is in neutral position (that is, released state), the second lock unit 72 is in file location and (that is, combines shape
State) after, the second motor 5 being carried out electronic/power generation mode and controls, the first motor 3 is defeated with the bent axle of electromotor 1 by clutch 2
Go out to carry out between end power transmission and run by power generation mode.In this mode, between electromotor 1 and wheel 10, there is no machine driving,
Therefore electromotor 1 can be controlled to optimized operation point.
Series-parallel connection combination drive pattern is as follows: controls electromotor 1 and is in running status, controls clutch 2 and is in bonding state,
Control that the first lock unit 71 is in file location (that is, bonding state), the second lock unit 72 is in neutral position and (that is, separate shape
State) after, electromotor the 1, first motor 3 carries out power transmission, the second motor 5 and the first row with the gear ring 41 of first planet gear train
The sun gear 43 of star gear train carries out power transmission and electromotor 1 is carried out stepless speed regulation, makes electromotor the 1, first motor 3 and
Two motors 5 run in system energy consumption discharge optimum.According to the first motor 3 and running status of the second motor 5, also can be further
Realize the series-parallel connection driving of single motor parallel drive pattern, bi-motor parallel drive pattern, another motor powered of electric power generation
The subpatterns such as pattern.In such a mode, machine driving between electromotor 1 and wheel 10, can be carried out, but by real to the second motor 5
Execute rotating speed control, can be under any rotating speed of output shaft 15, can be real by electromotor 1 stepless speed regulation to optimized operation rotating speed
The now optimization to system energy efficiency.
First motor the 3, second motor 5 carries out electricity by high tension cable and motor control assembly 12, energy storage device 11 respectively
Can transmission.
At whole power transmission chains between power part and wheel 10 such as electromotor the 1, first motor the 3, second motors 5
In, cancel variator and the retarder of existing internal-combustion engines vehicle.
Electromotor 1 can by the work of the two ways such as shutdown, operation, the first motor 3 can by shutting down/dally, generate electricity, electronic etc.
Three kinds of modes work, and the second motor 5 also can work by three kinds of modes such as shutting down/dally, generate electricity, be electronic, and clutch 2 can be by knot
Splitting or integrating from etc. two ways work, first lock unit the 71, second lock unit 72 be respectively arranged with two kinds of location status such as shelves, neutral,
Three kinds of assembled state (this two lock unit should not run in system and be simultaneously in shelves state) are to select the rotor 51 of the second motor 5
Power transmission to the sun gear 43 of first planet gear train 4 or the sun gear 63 of the second epicyclic train 6.The present embodiment one
Control flow is with reference to Fig. 4.Can realize the operational mode of whole hybrid power system: engine idle shuts down/and fast starting, stepless
The pure electric drive of speed change list motor, the pure electric drive of infinitely variable speeds bi-motor, infinitely variable speeds tandem drive, infinitely variable speeds parallel drive,
The operation mould of all hybrid power systems such as infinitely variable speeds driving charging combination drive, regenerative braking energy feedback, stopping for charging
Formula.
In Fig. 4, SOC is energy storage device state-of-charge, and SOCeL is pure electrically driven (operated) SOC lower limit, and TbatL is energy-storage system
The operating temperature lower limit required, TorqH is the vehicle demand torque lower limit of single pure electric drive mode of motor, and Vm1H is that single motor is pure
The speed upper limit of electric drive mode, SOCLL is the limit value that energy-storage system SOC is extremely low, and Time_i is continuing of present mode of operation
Time, Time_min is the minimum interval of pattern switching, and EFFe1, EFFe2, EFFs, EFFf are respectively system as by single electricity
The system effectiveness that the pure electric drive mode of machine, the pure electric drive mode of bi-motor, series drive mode, series-parallel connection drive pattern are estimated.
Embodiment two
(five mould dual planetary gear systems coaxially couple infinitely variable series parallel type hybrid power and drive as it is shown in figure 5, the present embodiment two
Dynamic system) essentially identical with embodiment one, its difference is: the five mould dual planetary gear systems of the present embodiment two coaxially couple
Hybrid drive system in type of multiple series connection stepless speed change, for realize the direct drive pattern of electromotor 1 further, also includes brake lock
Device 14, brake lock device 14 for being braked locking, brake lock releasing to the sun gear 43 of first planet gear train 4
Control, one end of brake lock device 14 is connected with the sun gear 43 of epicyclic train 4, the other end is connected with housing.
The hybrid power system ECU arranged in the present embodiment two, at the base of hybrid power system ECU described in embodiment two
On plinth, increasing control circuit and the software that described brake lock device 14 coordinates control, fault diagnosis etc., this mixing is moved
Force system ECU is independently arranged, or its function is integrated in other control device of described system or vehicle.
The direct drive pattern of electromotor 1 realize principle: when the first motor 3 or/and the second motor 5 is or/and motor controls
Device 12 or/and energy storage device 11 break down or/and electromotor be operated alone efficiency the highest time, be arranged in system is automatically controlled
Unit controls brake lock device 14 and is in brake lock position, makes the sun gear 43 of first planet gear train 4 be locked out fixing.
Control that the first lock unit 71 is in shelves or neutral position state, the second lock unit 72 is in neutral position state, according to epicyclic train
Operation principle, can realize following power transfer path: (1) power transfer path when clutch 2 is controlled in binding site
For the gear ring 41 of: electromotor 1 ←-→ clutch 2 ←-→ the first motor 3 ←-→ first planet gear train and planet carrier 42 ←-
→ output shaft 15 ←-→ deceleration differential, 8 ←-→ wheel 10, thus realize the direct drive pattern of electromotor 1；(2) clutch is worked as
2 gear rings 41 that power transfer path is the first motor 3 ←-→ first planet gear train when being controlled in separation point position and planet
Frame 42 ←-→ output shaft, 15 ←-→ deceleration differential, 8 ←-→ wheel 10, thus realize the first motor 3 and pattern is operated alone.
Other parts connection, work process, system running pattern and Baseline Control Strategy is with embodiment two, at this no longer
Repeat.
Embodiment three
As shown in Figure 6, the present embodiment three (bimodulus dual planetary gear system bi-motor coaxially couple pure power drive system) is logical
Cross what the connection between electromotor 1, clutch 2 and clutch 2 and the first motor 3 cancelled in example one realized.There is reality
Executing the pure electric drive mode of single motor in example one and the pure electric drive mode of bi-motor, it provides the benefit that:
(1) avoid the second long-time high-speed cruising of motor 5, the reliability of system can be improved；
(2) by coupling and the infinitely variable speeds of first planet gear train 4, the first motor 3 and fortune of the second motor 5 can be realized
Row aggregate efficiency optimization；
(3) due to the automatic switchover of different conditions of first lock unit the 71, second lock unit 72, first motor the 1, second electricity
Machine 5 uses less torque, also can realize the dynamic property suitable with conventional car.
The present embodiment three is provided with pure electric drive ECU, with hybrid power system ECU phase described in embodiment two
Relatively, eliminate electrical connection, hardware circuit and the software function relevant to electromotor 1 and clutch 2, for described motor
Control device 12, described energy storage device 11, described first lock unit 71, described second lock unit 72 coordinate and control and whole
Car control, Charge Management, fault diagnosis, faults-tolerant control, data management communication etc., this pure electric drive ECU can independently set
Put, also its function can be integrated in other control device of described system or vehicle.
Other parts connection, work process, system running pattern and Baseline Control Strategy is with embodiment one, at this no longer
Repeat.
Embodiment four
(three mould dual planetary gear system bi-motors coaxially couple pure power drive system) is logical as it is shown in fig. 7, the present embodiment four
Cross what the connection between electromotor 1 and clutch 2 and clutch 2 and the first motor 3 cancelled in example two realized.There is reality
Execute the pure electric drive mode of single motor in example one and the pure electric drive mode of bi-motor, also there is the first motor 3 in embodiment two
Pattern is operated alone, and it provides the benefit that: on the basis of embodiment three, pattern is operated alone by realizing the first motor 3, can
Improving system survivability further, i.e. under the second motor 5 failure condition, vehicle still can be operated alone by the first motor 3.
The present embodiment four is provided with pure electric drive ECU, compared with hybrid power system ECU described in embodiment two, takes
Disappeared electrical connection, hardware circuit and the software function relevant to electromotor 1 and clutch 2, for described motor is controlled dress
Put 12, described energy storage device 11, described first lock unit 71, described second lock unit 72, described brake lock device 14 are carried out
Coordinate control and full-vehicle control, energy management, regenerative braking or slide, Charge Management, fault diagnosis, faults-tolerant control, data
The software of management communication, demarcation monitoring etc., this pure electric drive ECU can be independently arranged, and also can its function be integrated into described
Other of system or vehicle controls in device.
Other parts connection, work process, system running pattern and Baseline Control Strategy is with embodiment two, at this no longer
Repeat.
The present invention is applied to vehicle, has the technology inheritance with existing vehicle and car load dynamic property, fuel economy
With the feature of low emission, there is stepless shift function, combined hybrid system function etc., there is adaptation full region, multipurpose application requirement
Feature, solve existing similar technique driving force deficiency, uphill starting scarce capacity, application limitation is big, system bulk is big and
Cost is high, cannot realize being difficult to the problem of batch industrialization to electromotor stepless speed regulation and because electromechanical component manufacture difficulty,
Achieve high-performance, low cost, strong adaptability, be prone to the combination that scale industrialization realizes.The application present invention's is pure electronic
Vehicle, relative to single motor or the pure electro-motive vehicle of Double-motor direct drive, power consumption can reduce by more than 10%.The application present invention's
Motor vehicle driven by mixed power, fuel oil consumption can reduce by more than 45%.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or revise, this not shadow
Ring the flesh and blood of the present invention.In the case of not conflicting, the feature in embodiments herein and embodiment can any phase
Combination mutually.
Claims (9)
1. the dual planetary gear system coaxial coupling drive system of bi-motor, it is characterised in that including: the first motor (3), first
Epicyclic train (4), the first lock unit (71), the second motor (5), the second lock unit (72), the second epicyclic train (6), defeated
Shaft (15), energy storage device (11) and motor control assembly (12)；Wherein:
Described first motor (3) is connected with first planet gear train (4), and described first planet gear train (4) is same also by first
Step device (71) is connected with the second motor (5), and described second motor (5) is by the second lock unit (72) and the second epicyclic train
(6) it is connected, and described first planet gear train (4), the second epicyclic train (6) are all connected with output shaft (15)；Described motor
Control device (12) to be connected with energy storage device (11), and output control instruction can be sent to the first motor (3), the second motor
(5)。
The dual planetary gear system the most according to claim 1 coaxial coupling drive system of bi-motor, it is characterised in that described
One epicyclic train (4), the second epicyclic train (6) all include ring gear, planet carrier and sun gear；Wherein:
The rotor (31) of the first motor is connected with the ring gear (41) of first planet gear train, the rotor (51) of the second motor point
Tong Guo the first lock unit (71), the second lock unit (72) and the sun gear (43) of first planet gear train, the second planetary gear
The sun gear (63) of system is connected, and the ring gear (61) of the second epicyclic train is connected with housing；The row of first planet gear train
Carrier (42), the planet carrier (62) of the second epicyclic train are all connected with output shaft (15), and can be same by controlling first
Step device (71), the combination of the second lock unit (72) realize the second rotor (51) to the sun of first planet gear train with separating
Take turns the power transmission of the sun gear (63) of (43), the second epicyclic train.
The dual planetary gear system the most according to claim 2 coaxial coupling drive system of bi-motor, it is characterised in that also wrap
Including: electromotor (1) and clutch (2), the crankshaft output end of electromotor (1) is connected with the input of clutch (2), the first electricity
The rotor (31) of machine is connected with the outfan of clutch.
The dual planetary gear system the most according to any one of claim 1 to 3 coaxial coupling drive system of bi-motor, its feature
It is, also includes: brake lock device (14), one end of described brake lock device (14) and the sun of first planet gear train
Wheel (43) is connected, and the other end of brake lock device (14) is connected with housing.
The dual planetary gear system the most according to claim 4 coaxial coupling drive system of bi-motor, it is characterised in that also wrap
Including: starter motor (13), described starter motor (13) is connected with the crankshaft output end of electromotor by starting gear ring.
The dual planetary gear system the most according to claim 5 coaxial coupling drive system of bi-motor, it is characterised in that also wrap
Include: hybrid power system ECU and pure electric drive ECU, described hybrid power system ECU and pure electric drive
ECU is for electromotor (1), motor control assembly (12), energy storage device (11), clutch (2), the first lock unit
(71), the second lock unit (72) and brake lock device (14) are controlled；Specifically, including: realize coordinate control, car load
Control, energy management, regenerative braking or slide, fault diagnosis, faults-tolerant control, data management communication, demarcate monitoring；Described mixing
Dynamical system ECU, pure electric drive ECU can be independently arranged or will be integrated in other control device of vehicle.
The dual planetary gear system the most according to claim 1 coaxial coupling drive system of bi-motor, it is characterised in that described
One epicyclic train (4), the structure of the second epicyclic train (6) including: have the single planetary gear of three power transmission ends
System, multiple rows of coupling epicyclic train or appointing in comprising the Planetary Gear Transmission set composite of epicyclic train and driving-chain
A kind of；
Described first lock unit (71), the structure of the second lock unit (72) are to have the arrangement of clutch combined with released state；Institute
State the first lock unit (71) to be arranged between the rotor (31) of the first motor and the ring gear (41) of first planet gear train, or
It is arranged between the planet carrier (42) of first planet gear train and output shaft (15).
The dual planetary gear system the most according to claim 1 coaxial coupling drive system of bi-motor, it is characterised in that described electricity
Machine controls device (12) and including: the first drive and control of electric machine module and the second drive and control of electric machine module；Wherein, described motor control
Device processed (12) is integrated or split type absolute construction；
Described energy storage device (11) including: power accumulator, super capacitor, flying wheel battery, power accumulator and super capacitor
Composite power source, any one being provided with in the accumulation power supply of external charge device.
The dual planetary gear system the most according to claim 1 coaxial coupling drive system of bi-motor, it is characterised in that also wrap
Including: deceleration differential (8), the input of described deceleration differential (8) is connected with output shaft (15), described deceleration differential (8)
Outfan be connected with corresponding two wheels by two semiaxis.
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| CN201610786296.3A CN106183780B (en) | 2016-08-30 | 2016-08-30 | Double-planetary gear train double-motor coaxial coupling driving system |
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