CN202896299U - Extend range type electric vehicle power system utilizing planetary gear transmission - Google Patents
Extend range type electric vehicle power system utilizing planetary gear transmission Download PDFInfo
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- CN202896299U CN202896299U CN201220475664XU CN201220475664U CN202896299U CN 202896299 U CN202896299 U CN 202896299U CN 201220475664X U CN201220475664X U CN 201220475664XU CN 201220475664 U CN201220475664 U CN 201220475664U CN 202896299 U CN202896299 U CN 202896299U
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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
- Y02T10/64—Electric machine technologies in electromobility
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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 an extend range type electric vehicle power system utilizing a planetary gear transmission. The extend range type electric vehicle power system is characterized in that a crankshaft of a combustion motor is connected with a shell of a double-clutch transmission device, a first clutch of the double-clutch transmission device is connected with a planetary gear mechanism through a transmission shaft, a second clutch is connected with a first motor rotor, a second motor rotor can be connected with any one of a sun wheel, a planet carrier, a gear ring and the like of the planetary gear mechanism, power is output through a set second element, and two gears are achieved by controlling the moving state of a third element. During low-speed travel, a vehicle is mainly driven by a second motor, low-speed and low-load work of an engine are avoided, and economy and emission performance of the whole vehicle are improved. During high-speed travel, the power system works in parallel to drive the vehicle, energy transferring efficiency is high, and on the base that dynamic property of the whole vehicle is guaranteed, continuous mileage of the vehicle is further prolonged.
Description
Technical field
The utility model relates to a kind of range extended electric vehicle power system that adopts planetary gearbox, particularly has combustion engine and two electrical motors, and can carry out the range extended electric vehicle power system of combustion engine and electrical motor parallel drive.
Background technology
Become today of China Automobile Industry theme 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; it is the electronlmobil take driving engine as main power source; 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; so that driving engine can be regulated 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 the direct motor drive vehicle fully, and its energy source has been realized zero-emission from electrical network, and efficiency is high, 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 requirement of user's routine use.
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 the electrokinetic cell lower voltage, it can drive electrical generator power is provided, and reaches the purpose of extending driving range 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 at present can be divided into series connection stroke boosting electronlmobil and series-parallel connection stroke-increasing electric automobile.Series connection stroke boosting electronlmobil advantage aspect cost increase (comparing with traditional vehicle) is larger, 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 series connection stroke boosting electronlmobil, but power system is complicated, cost is higher.There is following problem:
(1) because the combustion engine of traditional vehicle (or hybrid vehicle) need to be operated in bottom gear satisfying the acceleration demand, the low and load of its rate of load condensate and rotation speed change are fast, affect the car load economy;
(2) in existing hybrid power configuration, motor is mainly used to regulate the work area of combustion engine, thereby make combustion engine as far as possible in the interval work of Optimum Economic, the power that driving vehicle needs is still mainly provided by combustion engine, therefore the power of combustion engine is very large, affects 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, affects the car load economy;
(4) although 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) series connection stroke boosting electronlmobil is increasing under the journey pattern, has energy secondary conversion loss, and fuel economy is low.
Summary of the invention
The purpose of this utility model is to provide a kind of range extended electric vehicle power system that adopts planetary gearbox, is the combustion engine of a miniwatt grade of a kind of employing and the second electrical motor of a high-power grade.When internal combustion engine drive, prevent from driving the rotation of the first electrical motor, reduced friction and the electromagnetism loss of the first electrical motor.Provide two speed ratios by sun and planet gear for the second electrical motor, car load dynamic property demand is satisfied by the second electrical motor, has reduced the power of combustion engine, has improved the rate of load condensate of combustion engine, has improved the car load fuel consumption and emission.When the electrokinetic cell electric weight was not enough, tandem drive vehicle during low speed to power battery charging, was kept electric quantity balancing by internal combustion engine drive the first electrical motor; Parallel drive vehicle during high speed, energy transfer efficiency is high, on the basis that guarantees vehicle power, has further prolonged the continual mileage of vehicle.
The technical solution of the utility model is achieved in that a kind of range extended electric vehicle power system that adopts planetary gearbox, by combustion engine, the first electrical motor, the second electrical motor, dual clutch transmission, sun and planet gear and gear shifting actuating mechanism form, wherein gear shifting actuating mechanism comprises a shift clutch and a gearshift drg, it is characterized in that: the bent axle of combustion engine is connected with the housing of dual clutch transmission, the first clutch of dual clutch transmission is connected with sun and planet gear by transmission shaft, second clutch is connected with the first motor rotor, the second motor rotor can with the sun wheel of sun and planet gear, pinion carrier is connected wherein any one element of three elements to connect with gear ring, and by the second element outputting power of wherein setting, by controlling wherein two gears of three-element state of kinematic motion realization.
Described the second motor rotor links to each other with the pinion carrier of sun and planet gear, and by the gear ring outputting power, when the locking sun wheel, the transmitting ratio of sun and planet gear is greater than 0.5 and less than 1 i.e. two gears; When sun wheel and pinion carrier were locked into one, it was a gear that the transmitting ratio of sun and planet gear equals 1.
Described the second motor rotor links to each other with the gear ring of sun and planet gear, and by the pinion carrier outputting power, when the locking sun wheel, the transmitting ratio of sun and planet gear namely one keeps off less than 2 greater than 1; When sun wheel and pinion carrier were locked into one, it was two gears that the transmitting ratio of sun and planet gear equals 1.
Described the second motor rotor links to each other with the sun wheel of sun and planet gear, and by the pinion carrier outputting power, when the locking gear ring, the transmitting ratio of sun and planet gear namely one keeps off greater than 2; When gear ring and pinion carrier were locked into one, the transmitting ratio of sun and planet gear equaled 1 i.e. two gears.
Described the second electrical motor can be by a gear and two gear transmitting ratio outputting powers, and combustion engine can only be by two gear transmitting ratio outputting powers.
The combination of described dual clutch transmission first clutch is carried out transmission of power between combustion engine and the second electrical motor, and the dual clutch transmission first clutch separates, and transmission of power disconnects between combustion engine and the second electrical motor; The combination of described dual clutch transmission second clutch, carry out transmission of power between combustion engine and the first electrical motor, the dual clutch transmission second clutch separates, transmission of power disconnects between combustion engine and the first electrical motor, also can cancel second clutch, the first electrical motor becomes to be rigidly connected with the dual clutch transmission housing.
Described combustion engine, dual clutch transmission and the first electrical motor can be cancelled, and power system is worked under electric-only mode always and is the pure electric vehicle power system.
Good effect of the present utility model is to adopt two shift transmissions, for the second electrical motor provides two transmitting ratios, reduces vehicle to the second motor torque demand, reduces the second electrical motor volume; The first electrical motor, the second electrical motor, two shift transmission Integration Designs make system architecture compacter, realize the lightweight of power system; Compare the same level hybrid vehicle, power of IC engine is little, the rate of load condensate of combustion engine when having improved Vehicle Driving Cycle; When the second clutch of dual clutch transmission separates, drive the rotation of the first electrical motor when preventing internal combustion engine drive, reduced loss due to friction and the electromagnetism loss of the first electrical motor, thereby improved the fuel economy of car load; During the cancellation second clutch, 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 first clutch, make driving engine participate in vehicular drive, this moment, the power system energy transfer efficiency was high, 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, dual clutch transmission and the first electrical motor, power system is worked under electric-only mode always, the utility model develops into a kind of pure electric vehicle 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 the second motor rotor links to each other with the pinion carrier of sun and planet gear, by the gear ring outputting power.
Figure 2 shows that the second motor rotor links to each other with the gear ring of sun and planet gear, by the pinion carrier outputting power.
Figure 3 shows that the second motor rotor links to each other with the sun wheel of sun and planet gear, by the pinion carrier outputting power.
Figure 4 shows that two kinds of working stages of power system.Wherein SOC is the state-of-charge of electrokinetic cell.SOC is high, illustrates that the electrokinetic cell electric weight is sufficient; SOC is low, illustrates that the electrokinetic cell electric weight is not enough.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1, a kind of range extended electric vehicle power system that adopts planetary gearbox, by combustion engine 1, dual clutch transmission housing 2, first clutch 3, second clutch 4, gear ring 5, pinion carrier 6, sun wheel 7, friction lining 8, three-clutch 9, drg 10, the second motor rotors 11, the second motor stator 12, transmission device housing 13, transmission shaft 14, output shaft 15, the first motor stator 16, the first motor rotors 17 form.
The bent axle of combustion engine 1 is connected with the housing of dual clutch transmission 2.The first clutch 3 of dual clutch transmission is connected with sun and planet gear by transmission shaft 14, and second clutch 4 is connected with the first motor rotor 17.The second motor rotor 11 can wherein any one element of three elements such as be connected with gear ring 5, pinion carrier 6 and be connected with sun wheel, and by the second element outputting power of wherein setting, by control wherein three-element state of kinematic motion realize two gears.
As shown in Figure 1, the second motor rotor 11 links to each other with the pinion carrier 6 of sun and planet gear, by gear ring 5 outputting powers.When locking sun wheel 7, the transmitting ratio of sun and planet gear namely two keeps off less than 1; When sun wheel 7 and pinion carrier 6 were locked into one, it was a gear that the transmitting ratio of planetary gear construction equals 1.At this, pinion carrier 6 is the first element, and gear ring 5 is the second element, and sun wheel 7 is three element.
As shown in Figure 2, the second motor rotor 11 links to each other with the gear ring 5 of sun and planet gear, by pinion carrier 6 outputting powers.When locking sun wheel 7, the transmitting ratio of sun and planet gear namely one keeps off less than 2 greater than 1; When sun wheel 7 and pinion carrier 6 were locked into one, it was two gears that the transmitting ratio of sun and planet gear equals 1.At this, gear ring 5 is the first element, and pinion carrier 6 is the second element, and sun wheel 7 is three element.
As shown in Figure 3, the second motor rotor 11 links to each other with the sun wheel 7 of sun and planet gear, by pinion carrier 6 outputting powers.When locking gear ring 5, the transmitting ratio of sun and planet gear namely one keeps off greater than 2; When gear ring 5 and pinion carrier 6 were locked into one, the transmitting ratio of sun and planet gear equaled 1 i.e. two gears.At this, sun wheel 7 is the first element, and pinion carrier 6 is the second element, and gear ring 5 is three element.
Second clutch 4 combinations are carried out transmission of power between combustion engine 1 and the first motor rotor 17.Second clutch (4) separates, and transmission of power disconnects between combustion engine 1 and the first motor rotor 17.
First clutch 3 combinations are carried out transmission of power between combustion engine 1 and the second motor rotor 11.First clutch 3 separates, and transmission of power disconnects between combustion engine 1 and the second motor rotor 11.
As shown in Figure 4, according to power battery charged state (SOC), power system has two working stages: electric quantity consumption (CD) stage and electric weight are kept (CS) stage.When the electrokinetic cell electric weight was sufficient, system works was in the CD stage, and when the electrokinetic cell electric weight was reduced to a certain degree, 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 internal 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 internal combustion engine and high-speed joint drive pattern are as shown in the table.
Under the electric-only mode, combustion engine 1 quits work, and first clutch 3 separates, and the first electrical motor quits work, and the second electrical motor drives separately Vehicle Driving Cycle.
Under the series model, combustion engine 1 work, first clutch 3 separates, second clutch 4 combinations, the generating of the first electrical motor, the second electrical motor drives separately Vehicle Driving Cycle.
Under the driving power generation mode, combustion engine 1 work, first clutch 3 combinations, second clutch 4 combinations, the generating of the first electrical motor, the second electrical motor is with turning, and combustion engine 1 drives Vehicle Driving Cycle.
Under the independent drive pattern of combustion engine, combustion engine 1 work, first clutch 3 combinations, second clutch 4 separates, and the first electrical motor quits work, and the second electrical motor is with turning, and combustion engine 1 drives Vehicle Driving Cycle.
Under the associating drive pattern, combustion engine 1 work, first clutch 3 combinations, second clutch 4 separates, and the first electrical motor quits work, and the second electrical motor and combustion engine 1 are united the driving Vehicle Driving Cycle.
Claims (6)
1. range extended electric vehicle power system that adopts planetary gearbox, by combustion engine, the first electrical motor, the second electrical motor, dual clutch transmission, sun and planet gear and gear shifting actuating mechanism form, wherein gear shifting actuating mechanism comprises a shift clutch and a gearshift drg, it is characterized in that: the bent axle of combustion engine is connected with the housing of dual clutch transmission, the first clutch of dual clutch transmission is connected with sun and planet gear by transmission shaft, second clutch is connected with the first motor rotor, the second motor rotor can with the sun wheel of sun and planet gear, pinion carrier is connected wherein any one element of three elements to connect with gear ring, and by the second element outputting power of wherein setting, by controlling wherein two gears of three-element state of kinematic motion realization.
2. a kind of range extended electric vehicle power system that adopts planetary gearbox according to claim 1, it is characterized in that described the second motor rotor links to each other with the pinion carrier of sun and planet gear, by the gear ring outputting power, when the locking sun wheel, the transmitting ratio of sun and planet gear is greater than 0.5 and be two gears less than 1; When sun wheel and pinion carrier were locked into one, the transmitting ratio of sun and planet gear equaled 1 and is a gear.
3. a kind of range extended electric vehicle power system that adopts planetary gearbox according to claim 1, it is characterized in that described the second motor rotor links to each other with the gear ring of sun and planet gear, by the pinion carrier outputting power, when the locking sun wheel, the transmitting ratio of sun and planet gear is a gear greater than 1 less than 2; When sun wheel and pinion carrier were locked into one, the transmitting ratio of sun and planet gear equaled 1 and is two gears.
4. a kind of range extended electric vehicle power system that adopts planetary gearbox according to claim 1, it is characterized in that described the second motor rotor links to each other with the sun wheel of sun and planet gear, by the pinion carrier outputting power, when the locking gear ring, the transmitting ratio of sun and planet gear is a gear greater than 2; When gear ring and pinion carrier were locked into one, the transmitting ratio of sun and planet gear equaled 1 and is two gears.
5. a kind of range extended electric vehicle power system that adopts planetary gearbox according to claim 1, it is characterized in that described the second electrical motor can be by a gear and two gear transmitting ratio outputting powers, combustion engine can only be by two gear transmitting ratio outputting powers.
6. a kind of range extended electric vehicle power system that adopts planetary gearbox according to claim 1, it is characterized in that the combination of described dual clutch transmission first clutch, carry out transmission of power between combustion engine and the second electrical motor, the dual clutch transmission first clutch separates, and transmission of power disconnects between combustion engine and the second electrical motor; The combination of described dual clutch transmission second clutch, carry out transmission of power between combustion engine and the first electrical motor, the dual clutch transmission second clutch separates, transmission of power disconnects between combustion engine and the first electrical motor, also can cancel second clutch, the first electrical motor becomes to be rigidly connected with the dual clutch transmission housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220475664XU CN202896299U (en) | 2012-09-18 | 2012-09-18 | Extend range type electric vehicle power system utilizing planetary gear transmission |
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| CN201220475664XU CN202896299U (en) | 2012-09-18 | 2012-09-18 | Extend range type electric vehicle power system utilizing planetary gear transmission |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848913A (en) * | 2012-09-18 | 2013-01-02 | 中国第一汽车股份有限公司 | Extended-range electric automobile power system adopting planetary transmission |
| CN102874094A (en) * | 2012-09-18 | 2013-01-16 | 中国第一汽车股份有限公司 | Range extended electric vehicle power system adopting planetary gear two speed transmission |
| CN103291860A (en) * | 2013-05-22 | 2013-09-11 | 同济大学 | Input-power-split hybrid automatic transmission |
| DE202013105062U1 (en) | 2013-11-11 | 2015-02-16 | Hofer-Pdc Gmbh | Powertrain, especially as a drive kit |
| US9702438B2 (en) | 2014-09-29 | 2017-07-11 | The Royal Institution For The Advancement Of Learning/Mcgill University | Seamless transmission systems and methods for electric vehicles |
| CN109795309A (en) * | 2019-03-22 | 2019-05-24 | 合肥工业大学 | A kind of double clutch coupled hybrid systems |
-
2012
- 2012-09-18 CN CN201220475664XU patent/CN202896299U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848913A (en) * | 2012-09-18 | 2013-01-02 | 中国第一汽车股份有限公司 | Extended-range electric automobile power system adopting planetary transmission |
| CN102874094A (en) * | 2012-09-18 | 2013-01-16 | 中国第一汽车股份有限公司 | Range extended electric vehicle power system adopting planetary gear two speed transmission |
| CN102874094B (en) * | 2012-09-18 | 2016-03-02 | 中国第一汽车股份有限公司 | A kind of range extended electric vehicle power system adopting planetary wheel two-speed transmission |
| CN102848913B (en) * | 2012-09-18 | 2016-04-20 | 中国第一汽车股份有限公司 | A kind of range extended electric vehicle power system adopting planetary gearbox |
| CN103291860A (en) * | 2013-05-22 | 2013-09-11 | 同济大学 | Input-power-split hybrid automatic transmission |
| CN103291860B (en) * | 2013-05-22 | 2016-04-20 | 同济大学 | A kind of input power flow deviding type mixed power automatic transmission |
| DE202013105062U1 (en) | 2013-11-11 | 2015-02-16 | Hofer-Pdc Gmbh | Powertrain, especially as a drive kit |
| US9702438B2 (en) | 2014-09-29 | 2017-07-11 | The Royal Institution For The Advancement Of Learning/Mcgill University | Seamless transmission systems and methods for electric vehicles |
| CN109795309A (en) * | 2019-03-22 | 2019-05-24 | 合肥工业大学 | A kind of double clutch coupled hybrid systems |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20190918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |