CN209208504U - A kind of extended-range device of electric car - Google Patents
A kind of extended-range device of electric car Download PDFInfo
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- CN209208504U CN209208504U CN201821999731.1U CN201821999731U CN209208504U CN 209208504 U CN209208504 U CN 209208504U CN 201821999731 U CN201821999731 U CN 201821999731U CN 209208504 U CN209208504 U CN 209208504U
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- engine
- generator
- stepless transmission
- controller
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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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The utility model discloses a kind of extended-range devices of electric car, including the engine and generator connected by stepless transmission, and engine, generator and stepless transmission are equipped with engine controller, engine controller, gearbox control, three and distance increasing unit control connect, by the actual conditions of distance increasing unit controller real-time monitoring vehicle, in conjunction with NVH test data, system effectiveness, it may be implemented to match optimal speed ratio, its structure is simple, manufacturing cost is low, it is easy for installation, its engine and motor that electric vehicle is connected by stepless transmission, it can not only continue reliably to carry out power transmitting, improve the dynamic property and stationarity of vehicle, and realize the best transmission matching of engine and generator, the two is set to maintain ideal, efficient operating point, effectively improve fuel economy, and it solves The puzzlement of NVH.
Description
Technical field
The utility model relates to a kind of extended-range devices of electric car, belong to technical field of new energy.
Background technique
With the development of society, people's lives condition gradually improves, therefore, in recent years, the automobile industry in China is met
High speed development is carried out.However popularizing while having pushed human social economy and modern civilization develops for automobile, also bring
Severe energy and environmental problem, energy conservation and environmental protection become one of the theme of automotive technology development.If so, new-energy automobile is (such as
Pure electric automobile, hybrid vehicle-extended-range automobile and fuel cell car) and its relevant components technology obtain
Large development.Wherein extended-range automobile has the advantages of pure electric vehicle and hybrid vehicle concurrently: in more short-circuit journey traveling such as city, city
Effect trip is run using pure electric vehicle, and use cost is low and environmentally friendly；Over long distances traveling as between intercity trip transported using hybrid power
Row, solves the mileage anxiety of pure electric vehicle and greatly improves fuel economizing rate, increasingly obtain each depot and the favor of consumer.
The type of attachment of existing extended-range automobile engine and generator, one is direct by modes such as shaft couplings
Connection, another kind, which is engine and generator, passes through gear with fixed speed ratio or the connection of belt wheel mode.Wherein the first
Method is limited by the influence of NVH and can not apply the high-speed and high-efficiency area with performance generator completely；Second method is in certain journey
The application in engine economic zone is constrained on degree, the type selecting and matching strip to engine are next difficult, therefore both the above method is equal
It is undesirable in the presence of the economic zone and high efficient district, fuel economy that can not be applied completely with play engine and hair electromechanics.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of this extended-range devices of electric car, can overcome existing
The deficiency of technology.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
A kind of extended-range device of electric car, including engine and generator, the engine and generator pass through stepless
Speed changer connection；And engine controller, generator control are respectively equipped on the engine, generator and stepless transmission
Device, gearbox control, three connect with the distance increasing unit controller being arranged in vehicle CAN bus.
Aforementioned stepless transmission includes the driving wheel and driven wheel being used cooperatively, and the two passes through main metal band connection.
Aforementioned engine is connected by the driving wheel of yielding coupling and stepless transmission；The driven wheel of stepless transmission with
The connection of generator spline.
Compared with the prior art, the utility model discloses a kind of extended-range device of electric car, make electric car
Engine is connected with generator by stepless transmission, and is respectively equipped on the engine, generator and stepless transmission
Engine controller, engine controller, gearbox control, three control with the distance increasing unit being arranged in vehicle CAN bus
Device connection, by the actual conditions of distance increasing unit controller real-time monitoring vehicle, in conjunction with NVH test data, system effectiveness be may be implemented
Engine and generator match optimal speed ratio, and fuel economy not only can be improved, but also solve the puzzlement of NVH.
The distance increasing unit controller is according to the generated output of vehicle actual condition acquisition of information distance increasing unit, and by repairing
Just, the actual generation power of distance increasing unit is obtained, and carries out the reality of distance increasing unit by engine controller and engine controller
Generated output is allocated, and is stored in universal characteristic curve of engine respectively in the engine controller and engine controller
Figure and generator efficiency MAP chart obtain engine optimum efficiency and generator efficiency MAP in engine's fuel consumption characteristics loop image
Generator optimum efficiency in figure by optimum efficiency value and the actual generation power of distance increasing unit, and then obtains engine output
Power；Enter engine NVH test data in engine controller memory simultaneously, obtains engine in minimum NVH data area
Economic work revolving speed, engine and generator not only may be implemented and obtain optimal transmission efficiency, guarantee is started completely
The economic zone and high efficient district of machine and hair electromechanics, substantially increase fuel economy, and guarantee engine in minimum NVH data model
Work is enclosed, noise and vibration are reduced, stationarity is good, and comfort is high.
The utility model structure is simple, and manufacturing cost is low, easy for installation, has the advantage that
(1) its by stepless transmission connect electric vehicle engine and motor, can not only continue reliably into
Action edge transmitting, improves the dynamic property and stationarity of vehicle.
(2) by its control system, engine and generator can be made with the transmission speed ratio of auto-control stepless transmission
Obtain best efficiency point out of corresponding efficiency MAP chart, guarantee to realize at engine and generator pressure point of maximum efficiency engine and
The best match of generator makes engine and generator work under optimal transmission speed ratio, and the two maintains ideal, high
The operating point of effect, effectively improves fuel economy.
(3) by its control system, guarantee that engine works in minimum NVH data area, effectively reduce engine
The noise generated and vibration are run, stationarity is good, and comfort is high.
(4) it is corrected by battery SOC, guarantees that battery can charge in time, effectively improve battery of electric vehicle service life, have
There are good economic and practical and generalization.
Detailed description of the invention
The structural schematic diagram of Fig. 1 the utility model.
Fig. 2 is the workflow schematic diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe:
As shown in Figure 1, a kind of extended-range device of electric car, including engine 1 and generator 4, the engine 1 and hair
Motor 4 is connected by stepless transmission 3, and specifically, the stepless transmission 3 includes the driving wheel 31 and driven wheel being used cooperatively
32, the stepless variation of speed ratio, the engine are realized by driving wheel 31, driven wheel 32 and metal tape connecting the two 33
1 is connect by yielding coupling 2 with the driving wheel 31 of stepless transmission；The driven wheel 32 and 4 spline of generator of stepless transmission
Connection；Engine controller 5, engine controller 8 are respectively equipped on the engine 1, generator 4 and stepless transmission 3
With gearbox control 7, and the engine controller 5, engine controller 8 and gearbox control 7 be arranged whole
Distance increasing unit controller 6 in vehicle CAN bus connects, and the distance increasing unit controller 6, which parses vehicle actual condition by CAN bus, to be believed
Breath, makes the actual conditions of its real-time monitoring car, in conjunction with NVH test data, system effectiveness may be implemented to match optimal speed
Than fuel economy not only can be improved, but also solve the puzzlement of NVH.
As shown in Fig. 2, the basic principle of the extended-range device is: distance increasing unit controller 6 parses vehicle reality by CAN message
Border work information to obtain the total demand generated output of the distance increasing unit, and issues CAN message to engine controller 5, hair
Electric machine controller 8, so that the two is carried out reasonable power distribution in best efficiency point makes gearbox control under practical driving conditions
Device 7 obtains optimal dynamic stepless transmission speed ratio in real time, guarantees that engine 1 and generator 4 are in optimal transmission efficiency, obtains
Satisfied NVH and optimal system effectiveness are obtained, fuel economy is promoted.
The specific workflow of the extended-range device is as follows:
S1, engine's fuel consumption characteristics loop image is stored in engine controller 5, deposit power generation in engine controller 8
Engine efficiency MAP chart makes the engine optimum efficiency in 5 automatic collection engine's fuel consumption characteristics loop image of engine controller, hair
Generator optimum efficiency in 8 automatic collection generator efficiency MAP chart of electric machine controller；
Engine NVH test data is inputted in engine controller 5, controls engine 1 in engine NVH minimum data
Range operating；
S2, distance increasing unit controller 6 parse vehicle actual condition letter according to gas pedal information, operator demand's situation etc.
Breath, to obtain the demand generated output P0 of distance increasing unit；
The SOC of s3, distance increasing unit controller 6 in self generating power bracket in conjunction with power battery is to distance increasing unit generated output
P0 is revised, and obtains actual demand generated output P1, and send CAN message；
Specifically, engine controller 8 carries out real time electrical quantity detection according to the SOC of battery, when Vehicular battery electricity is high,
Generator 4 is set to export smaller generated output value；When Vehicular battery electricity is low, generator 4 is made to export larger generated output value, and
And the power data in minimum power limit value and maximum power limits is acquired, and issue CAN message, make distance increasing unit controller
6 obtain the actual demand generated output P1 of distance increasing unit according to CAN message, and send CAN message；
The CAN message that s4, engine controller 5 are issued according to step s2, in conjunction with distance increasing unit power threshold and last moment
Generator optimum efficiency obtains engine output P2；
S5, engine controller 5, in conjunction with engine NVH test data, determine that engine operation turns according to current vehicle speed u0
Fast u1；
S6, gearbox control 7 are obtained according to engine operation revolving speed u1, the engine's fuel consumption characteristics loop image in step s5
The generator optimum efficiency that engine optimum efficiency, the generator efficiency MAP chart obtained obtains, obtains engine and generator phase
The stepless transmission speed ratio matched, so that engine 1 and generator 4 are in optimal transmission efficiency.
Claims (3)
1. a kind of extended-range device of electric car, including engine (1) and generator (4), it is characterised in that: the engine
(1) it is connected with generator (4) by stepless transmission (3)；And the engine (1), generator (4) and stepless transmission
(3) engine controller (5), engine controller (8), gearbox control (7) are respectively equipped on, three and setting are in vehicle
Distance increasing unit controller (6) connection in CAN bus.
2. the extended-range device of electric car according to claim 1, it is characterised in that: the stepless transmission (3) includes
The driving wheel (31) and driven wheel (32) being used cooperatively, the two are connected by main metal tape (33).
3. the extended-range device of electric car according to claim 2, it is characterised in that: the engine (1) passes through elasticity
Shaft coupling (2) is connect with the driving wheel (31) of stepless transmission；The driven wheel (32) and generator (4) spline of stepless transmission connect
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821999731.1U CN209208504U (en) | 2018-11-30 | 2018-11-30 | A kind of extended-range device of electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821999731.1U CN209208504U (en) | 2018-11-30 | 2018-11-30 | A kind of extended-range device of electric car |
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| Publication Number | Publication Date |
|---|---|
| CN209208504U true CN209208504U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821999731.1U Active CN209208504U (en) | 2018-11-30 | 2018-11-30 | A kind of extended-range device of electric car |
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| CN (1) | CN209208504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435709A (en) * | 2018-11-30 | 2019-03-08 | 贵州长江汽车有限公司 | A kind of extended-range device and regulation method of electric car |
-
2018
- 2018-11-30 CN CN201821999731.1U patent/CN209208504U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435709A (en) * | 2018-11-30 | 2019-03-08 | 贵州长江汽车有限公司 | A kind of extended-range device and regulation method of electric car |
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