CN203032381U - Range extended electric vehicle (REEV) power system provided with dual clutch transmission device - Google Patents
Range extended electric vehicle (REEV) power system provided with dual clutch transmission device Download PDFInfo
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- CN203032381U CN203032381U CN2012204751364U CN201220475136U CN203032381U CN 203032381 U CN203032381 U CN 203032381U CN 2012204751364 U CN2012204751364 U CN 2012204751364U CN 201220475136 U CN201220475136 U CN 201220475136U CN 203032381 U CN203032381 U CN 203032381U
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- dual clutch
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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Abstract
The utility model relates to a range extended electric vehicle (REEV) power system provided with a dual clutch transmission device. The REEV power system provided with the dual clutch transmission device is characterized in that a crankshaft of an internal-combustion engine is connected with a shell body of a first dual clutch transmission device. A first clutch of the first dual clutch transmission device is connected with a second clutch of a second dual clutch transmission device through a transmission shaft; a second clutch of the first clutch transmission device is connected with a first motor rotor; a second motor rotor is connected with a shell body of a second dual clutch transmission device through the transmission shaft; and two variable gear mechanism sets are respectively controlled to output power through control over separation or combination of two clutches of the second dual clutch transmission device, and two tap positions can be achieved. When a vehicle travels at a low speed, the vehicle is mainly driven by a second motor, the low-speed and low-load working of an engine is avoided, and the economical efficiency and the emission performance of the whole vehicle are improved; when the vehicle travels at a high speed, the power system works in parallel connection to drive the vehicle, energy transmission efficiency is high, and the driving range of the vehicle is further extended based on the fact that the dynamic property of the whole vehicle is guaranteed.
Description
Technical field
The utility model relates to a kind of stroke-increasing electric automobile power system that adopts dual clutch transmission, particularly has combustion engine and two electrical motors and can carry out internal combustion engine drive and electric motor driven stroke-increasing electric automobile power system.
Background technology
Become today of auto trade development topic in energy-conservation and environmental protection, hybrid vehicle has become the object of various countries automobile vendor primary study.Hybrid vehicle (Hybrid Electrical Vehicle is called for short HEV) refers to equip simultaneously the automobile of two kinds of power resources-heat dynamic resources (being produced by traditional spark ignition engine or diesel engine) and electrodynamic source (electrokinetic cell and electrical motor).Hybrid vehicle does not need external charge; be to be the electronlmobil in major impetus source with the driving engine; by hybrid power functions such as engine idle shutdown, braking energy recovery, low speed pure motor driving, driving generating, driving power-assisted and the independent drivings of driving engine; make driving engine to regulate and control flexibly according to the actual operating mode of car load; remain on the interior work in zone of Combination property the best, thereby reduce oil consumption and discharging.
Compare with hybrid vehicle, pure electric automobile (Battery Electric vehicle is called for short BEV) relies on electric direct motor drive vehicle fully, and its energy source has been realized zero-emission from electrical network, the efficiency height, and noise is little.But be subjected to current driving force battery technology horizontal constraints, its energy density can't satisfy automobile-used demand, and the car load continual mileage is limited, can not satisfy the daily operating needs of user.
In order to prolong the continual mileage of pure electric automobile, people have increased a high efficiency internal combustion engine in power system of electric automobile, and when electrokinetic cell voltage reduced, it can drive electrical generator power is provided, and reach the purpose that prolongs continual mileage with this.This class battery-driven car is called as stroke-increasing electric automobile (Range-extended Electric Vehicle is called for short REEV).According to the power system structure, the stroke-increasing electric automobile that exists can be divided into series connection stroke-increasing electric automobile and series-parallel connection stroke-increasing electric automobile at present.Series connection stroke-increasing electric automobile advantage aspect cost increase (comparing with traditional vehicle) is bigger, and dynamic property is difficult to satisfy the vehicle performance requirement under electric quantity maintaining stage, and the fuel economy of running at high speed is also relatively poor.Series-parallel connection stroke-increasing electric automobile dynamic property and oil consumption under electric quantity maintaining stage all are better than the stroke-increasing electric automobile of connecting, but power system complexity, cost are higher;
There is following problem at present:
(1) because the combustion engine of traditional vehicle (or hybrid vehicle) need be operated in bottom gear with full
Foot acceleration demand, the low and load of its rate of load condensate and rotation speed change are fast, influence the car load economy;
(2) in existing hybrid power configuration, motor is mainly used to regulate the work area of combustion engine, thereby combustion engine is worked as far as possible between optimum economic zone, the power that driving vehicle needs is still mainly provided by combustion engine, therefore the power of combustion engine is very big, influences car load economy and emission performance;
(3) in existing hybrid power configuration, the first electrical motor form generally has two kinds, BSG(Belt Starter Generator) and ISG (Integrated Starter Generator), they directly link to each other with combustion engine usually, can drive them during internal combustion engine rotates always, this not only can produce mechanical friction loss, also can produce the electromagnetism loss, influences the car load economy;
(4) though pure electric automobile can be realized zero consumption of fuel and zero-emission, because the volume of electrokinetic cell and the restriction of energy density, its continual mileage is very limited;
(5) the series connection stroke-increasing electric automobile is increasing under the journey pattern, has energy secondary conversion loss, influences the car load economy.
Summary of the invention
The purpose of this utility model is to provide a kind of stroke-increasing electric automobile power system that adopts dual clutch transmission, and it adopts the combustion engine of a miniwatt grade and second electrical motor of a high-power grade.When internal combustion engine drive, prevent from driving the rotation of first electrical motor, reduced loss due to friction and the electromagnetism loss of first electrical motor.Provide two retaining transmitting ratios by two cover change gear mechanisms for second electrical motor, car load dynamic property demand is satisfied by second electrical motor, has reduced the power of combustion engine, has improved the rate of load condensate of combustion engine, has improved car load economy and emission performance.When the electrokinetic cell electric weight was not enough, tandem drive vehicle during low speed was given power battery charging by internal combustion engine drive first electrical motor, keeps electric quantity balancing; The vehicle that drives in parallel during high speed, the energy transfer efficiency height on the basis that guarantees the car load dynamic property, has further prolonged the continual mileage of vehicle.
The technical solution of the utility model is achieved in that a kind of stroke-increasing electric automobile power system that adopts dual clutch transmission, is made up of combustion engine, first electrical motor, second electrical motor, two dual clutch transmissions and two cover change gear mechanisms, wherein second dual clutch transmission can be used for shifting gears; It is characterized in that: the bent axle of combustion engine is connected with the first dual clutch transmission housing.The first clutch of first dual clutch transmission is connected with the second dual clutch transmission second clutch by transmission shaft; The second clutch of first dual clutch transmission is connected with first motor rotor; Second motor rotor is connected with the second dual clutch transmission housing by transmission shaft; By controlling separation or the combination of two power-transfer clutchs of second dual clutch transmission, control two cover change gear mechanism outputting powers respectively, can realize two gears.
Described second motor rotor is connected with the second dual clutch transmission housing by transmission shaft, first clutch combination when second dual clutch transmission, second clutch separates, and power is by the output of first stud gear mechanism, and it is two retainings that the transmitting ratio of first stud gear mechanism equals 1; When the first clutch separation of second dual clutch transmission, the second clutch combination, power is by the output of second stud gear mechanism, and the transmitting ratio of second stud gear mechanism namely one keeps off greater than 1.
Described second electrical motor can be by a retaining and two retaining transmitting ratio outputting powers, and combustion engine can only be by two retaining transmitting ratio outputting powers.
The described first dual clutch transmission first clutch combination is carried out transmission of power between combustion engine and second electrical motor, and the first dual clutch transmission first clutch separates, and transmission of power disconnects between combustion engine and second electrical motor; The first dual clutch transmission second clutch combination, carry out transmission of power between combustion engine and first electrical motor, the first dual clutch transmission second clutch separates, transmission of power disconnects between combustion engine and first electrical motor, also can cancel the first dual clutch transmission second clutch, first electrical motor becomes to be rigidly connected with the housing of first dual clutch transmission.
Described combustion engine, first dual clutch transmission and first electrical motor can be cancelled, and power system is worked under the electric-only mode always and is the pure electric automobile power system.
Good effect of the present utility model is to adopt two shift transmissions, for second electrical motor provides two transmitting ratios, reduces vehicle to the second motor torque demand, reduces the second electrical motor volume; First electrical motor, second electrical motor, the integrated design of two shift transmissions make system architecture compacter, realize the lightweight of power system; Compare the same level hybrid vehicle, power of IC engine is little, has improved the rate of load condensate of combustion engine when vehicle travels; When the second clutch of first dual clutch transmission separates, drive the rotation of first electrical motor when preventing internal combustion engine drive, reduced loss due to friction and the electromagnetism loss of first electrical motor, thereby improved the fuel economy of car load; When cancelling the second clutch of first dual clutch transmission, the power system structure is compacter, can reduce integral vehicle cost.During low vehicle speeds, power system can be pure electronic or series model work; During high vehicle speeds, power system can be electric-only mode work, also can be in conjunction with the first dual clutch transmission first clutch, make driving engine participate in vehicular drive, this moment power system energy transfer efficiency height, on the basis that guarantees the car load dynamic property, can further prolong the continual mileage of vehicle.Based on power system of the present utility model, can cancel combustion engine, first dual clutch transmission and first electrical motor, power system is worked under electric-only mode always, the utility model develops into a kind of pure electric automobile power system, and the dynamical system that can realize stroke-increasing electric automobile and pure electric automobile is platform altogether.
Description of drawings
Figure 1 shows that stroke-increasing electric automobile power system structural representation.
Figure 2 shows that two kinds of working stages of power system.Wherein SOC is the state-of-charge of electrokinetic cell.The SOC height illustrates electrokinetic cell electric weight abundance; SOC is low, and electrokinetic cell electric weight deficiency is described.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described: as shown in Figure 1, a kind of stroke-increasing electric automobile power system that adopts dual clutch transmission, by combustion engine 1, the first dual clutch transmission housing 2, the first dual clutch transmission first clutch 3, the first dual clutch transmission second clutch 4, second stud gear mechanism 5, first stud gear mechanism 6, the second dual clutch transmission housing 7, the second dual clutch transmission first clutch, 8, the second dual clutch transmission second clutch, 9, the second motor stators 10, second motor rotor 11, transmission shaft 12, second stud gear mechanism 13, first stud gear mechanism 14, power output gear 15, power output gear 16, the first motor stators 17, the first motor rotors 18 are formed.
The bent axle of combustion engine 1 is connected with the first dual clutch transmission housing 2.The first clutch 3 of first dual clutch transmission is connected with the second dual clutch transmission second clutch 9 by transmission shaft 12.The second clutch 4 of first dual clutch transmission is connected with first motor rotor 18.Second motor rotor 11 is connected with the second dual clutch transmission housing 7 by transmission shaft.
4 combinations of the first dual clutch transmission second clutch are carried out transmission of power between combustion engine 1 and first motor rotor 18; Second clutch 4 separates, and transmission of power disconnects between combustion engine 1 and first motor rotor 18.
3 combinations of the first dual clutch transmission first clutch are carried out transmission of power between combustion engine 1 and second motor rotor 11; First clutch 3 separates, and transmission of power disconnects between combustion engine 1 and second motor rotor 11.
8 combinations of the second dual clutch transmission first clutch, second clutch 9 separates, and power is by 6 outputs of first stud gear mechanism, equals i.e. two retainings of 1 transmitting ratio for second electrical motor provides.
9 combinations of the second dual clutch transmission second clutch, first clutch 8 separates, and power is a retaining by 5 outputs of second stud gear mechanism for second electrical motor provides the transmitting ratio greater than 1.
As shown in Figure 2, according to power battery charged state SOC, power system has two working stages: electric quantity consumption CD stage and electric weight are kept the CS stage.When the electrokinetic cell electric weight was sufficient, power system was operated in the CD stage, and when the electrokinetic cell electric weight was reduced to a certain degree, power system entered into the CS stage.CD under the stage power system following several mode of operation is arranged: low speed electric-only mode, high speed electric-only mode, the independent drive pattern of high speed combustion engine and high-speed joint drive pattern.CS under the stage power system following several mode of operation is arranged: low speed series model, high speed traveling power generation mode, the independent drive pattern of high speed combustion engine and high-speed joint drive pattern, as shown in the table.
Under the electric-only mode, combustion engine 1 quits work, and the first dual clutch transmission first clutch 3 separates, and first electrical motor quits work, and second electrical motor drives vehicle separately and travels.
Under the series model, combustion engine 1 work, the first dual clutch transmission first clutch 3 separates, 4 combinations of the first dual clutch transmission second clutch, the generating of first electrical motor, second electrical motor drives vehicle separately and travels.
Under the driving power generation mode, combustion engine 1 work, 3 combinations of the first dual clutch transmission first clutch, 4 combinations of the first dual clutch transmission second clutch, the generating of first electrical motor, second electrical motor is with commentaries on classics, and combustion engine 1 drives vehicle and travels.
Under the independent drive pattern of combustion engine, combustion engine 1 work, 3 combinations of the first dual clutch transmission first clutch, the first dual clutch transmission second clutch 4 separates, and first electrical motor quits work, and second electrical motor is with commentaries on classics, and combustion engine 1 drives vehicle and travels.
Under the associating drive pattern, combustion engine 1 work, 3 combinations of the first dual clutch transmission first clutch, the first dual clutch transmission second clutch 4 separates, and first electrical motor quits work, and second electrical motor and combustion engine 1 are united the driving vehicle and are travelled.
Claims (5)
1. stroke-increasing electric automobile power system that adopts dual clutch transmission, is made up of combustion engine, first electrical motor, second electrical motor, two dual clutch transmissions and two cover change gear mechanisms, wherein second dual clutch transmission can be used for shifting gears; It is characterized in that: the bent axle of combustion engine is connected with the first dual clutch transmission housing; The first clutch of first dual clutch transmission is connected with the second dual clutch transmission second clutch by transmission shaft; The second clutch of first dual clutch transmission is connected with first motor rotor; Second motor rotor is connected with the second dual clutch transmission housing by transmission shaft; By controlling separation or the combination of two power-transfer clutchs of second dual clutch transmission, control two cover change gear mechanism outputting powers respectively, can realize two gears.
2. a kind of stroke-increasing electric automobile power system that adopts dual clutch transmission according to claim 1, it is characterized in that described second motor rotor is connected with the second dual clutch transmission housing by transmission shaft, first clutch combination when second dual clutch transmission, second clutch separates, power is by the output of first stud gear mechanism, and it is two retainings that the transmitting ratio of first stud gear mechanism equals 1; When the first clutch separation of second dual clutch transmission, the second clutch combination, power is by the output of second stud gear mechanism, and the transmitting ratio of second stud gear mechanism namely one keeps off greater than 1.
3. a kind of stroke-increasing electric automobile power system that adopts dual clutch transmission according to claim 1, it is characterized in that described second electrical motor can be by a retaining and two retaining transmitting ratio outputting powers, combustion engine can only be by two retaining transmitting ratio outputting powers.
4. a kind of stroke-increasing electric automobile power system that adopts dual clutch transmission according to claim 1, it is characterized in that the described first dual clutch transmission first clutch combination, carry out transmission of power between combustion engine and second electrical motor, the first dual clutch transmission first clutch separates, and transmission of power disconnects between combustion engine and second electrical motor; The first dual clutch transmission second clutch combination, carry out transmission of power between combustion engine and first electrical motor, the first dual clutch transmission second clutch separates, transmission of power disconnects between combustion engine and first electrical motor, also can cancel the first dual clutch transmission second clutch, first electrical motor becomes to be rigidly connected with the housing of first dual clutch transmission.
5. a kind of stroke-increasing electric automobile power system that adopts dual clutch transmission according to claim 1, it is characterized in that described combustion engine, first dual clutch transmission and first electrical motor can cancel, power system is worked under electric-only mode always and is the pure electric automobile power system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204751364U CN203032381U (en) | 2012-09-18 | 2012-09-18 | Range extended electric vehicle (REEV) power system provided with dual clutch transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204751364U CN203032381U (en) | 2012-09-18 | 2012-09-18 | Range extended electric vehicle (REEV) power system provided with dual clutch transmission device |
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| Publication Number | Publication Date |
|---|---|
| CN203032381U true CN203032381U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204751364U Withdrawn - After Issue CN203032381U (en) | 2012-09-18 | 2012-09-18 | Range extended electric vehicle (REEV) power system provided with dual clutch transmission device |
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| CN (1) | CN203032381U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874107A (en) * | 2012-09-18 | 2013-01-16 | 中国第一汽车股份有限公司 | Extended range electromobile power system using dual-clutch transmission gear |
| CN103921687A (en) * | 2014-04-01 | 2014-07-16 | 中国第一汽车股份有限公司 | Parallel electromobile power system |
| WO2019019293A1 (en) * | 2017-07-27 | 2019-01-31 | 精进电动科技股份有限公司 | Transverse vehicle drive assembly |
-
2012
- 2012-09-18 CN CN2012204751364U patent/CN203032381U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874107A (en) * | 2012-09-18 | 2013-01-16 | 中国第一汽车股份有限公司 | Extended range electromobile power system using dual-clutch transmission gear |
| CN102874107B (en) * | 2012-09-18 | 2015-12-30 | 中国第一汽车股份有限公司 | A kind of range extended electric vehicle power system adopting dual clutch transmission |
| CN103921687A (en) * | 2014-04-01 | 2014-07-16 | 中国第一汽车股份有限公司 | Parallel electromobile power system |
| WO2019019293A1 (en) * | 2017-07-27 | 2019-01-31 | 精进电动科技股份有限公司 | Transverse vehicle drive assembly |
| US11162562B2 (en) | 2017-07-27 | 2021-11-02 | Jing-Jin Electric Technologies Co., Ltd. | Transversely-placed vehicle driving assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20151230 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |