CN103921668B - A kind of stroke-increasing electric automobile power assembly - Google Patents
A kind of stroke-increasing electric automobile power assembly Download PDFInfo
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- CN103921668B CN103921668B CN201410129120.1A CN201410129120A CN103921668B CN 103921668 B CN103921668 B CN 103921668B CN 201410129120 A CN201410129120 A CN 201410129120A CN 103921668 B CN103921668 B CN 103921668B
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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
Abstract
The invention discloses a kind of stroke-increasing electric automobile power assembly, overcome that prior art power assembly is complicated, relatively costly, the problem of the long-distance poor performance of high speed；Including electromotor, the first motor, the second motor, two speed dual clutch gears and connection switching units；Described electromotor is connected by interior axle and the first motor rotor；Second motor rotor is connected by outer shaft and two speed dual clutch gears；Second motor rotor is connected by outer shaft, connection switching units and the first motor rotor；Electromotor and the second motor all can be by two speed dual clutch gear output power, by controlling separation or the combination of two clutches of two speed dual clutch gears, it is achieved two gear ratio transmission power；By controlling to connect separation or the combination of switching units, it is achieved the switching of described stroke-increasing electric automobile power assembly mode of operation.
Description
Technical field
The invention belongs to electric automobile field, relate to a kind of stroke-increasing electric automobile power assembly.
Background technology
In the prior art, it is known to herein below:
Extended-range electric vehicle be one be furnished with vehicle mounted dynamic battery and auxiliary power unit (Auxiliary Energy Supply,
AES) pure electrically driven (operated) electric automobile, when electric energy abundance, battery provide vehicle travel needed for all energy, when electric energy not
During foot, auxiliary power unit works.
Stroke-increasing electric automobile mode of operation is divided into two stages, and the first stage is CD (Charge Depleting, electric quantity consumption)
In the stage, keep pure motor driving under this stage, in limited distance travelled, provided energy by battery；Second stage is CS (Charge
Sustaining, electricity keeps) stage, electromotor participation work under this stage, it is achieved the prolongation of car load continual mileage.
There are two kinds of configurations in current stroke-increasing electric automobile, including series connection stroke boosting electric automobile (such as Audi Al e-tron) and
Series-parallel connection stroke-increasing electric automobile (such as Chevrolet VOLT).In series connection stroke boosting electric motor car, motor is driving power source,
Electromotor the most directly drives vehicle, and simply when electrokinetic cell electricity drops to a certain degree, electromotor just can start, and drives and sends out
Electric power generation, for driving electric machine with energy.Series connection stroke boosting power assembly of electric automobile is relatively simple, and cost is relatively low.Mixed
In connection stroke-increasing electric automobile VOLT, in the CS stage, tandem drive when running at a low speed, when running at high speed, motor joins with electromotor
Closing and drive vehicle to travel, under the CS stage, dynamic property and oil consumption are superior to series connection stroke boosting electric automobile.
The most of users of China are to purchase car first, and performance requirement long-distance to high speed is higher.Owing to current battery energy density is low,
Pure electric vehicle can not meet the requirement of high speed long-distance running.
Such as above-mentioned series connection stroke boosting electric automobile, generally configuring low power electromotor and electromotor, under the CS stage, dynamic property is only
Can meet and go home to travel.If increasing the power of electromotor and electromotor to improve the long-distance dynamic property of high speed in CS stage, then due to
Energy secondary conversion loss, less economical during high speed long-distance running.So, the long-distance poor performance of series connection stroke boosting electric automobile high speed.
Series-parallel connection stroke-increasing electric automobile dynamic property and oil consumption under the CS stage are superior to series connection stroke boosting electric automobile, can meet height
The requirement of speed long-distance running, but power assembly is complicated, relatively costly.
Summary of the invention
The technical problem to be solved provides a kind of stroke-increasing electric automobile power assembly, and this power assembly is relatively simple,
Cost is relatively low, has the long-distance performance of good high speed.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that realization:
A kind of stroke-increasing electric automobile power assembly, including electromotor, the first motor, the second motor, inner shaft, outer shaft,
Two speed dual clutch gears and connection switching units；
Described electromotor is connected by interior axle and the first motor rotor；Second motor rotor is become by outer shaft and two speed dual clutch
Speed mechanism connects；First motor rotor is connected by outer shaft, connection switching units and the second motor rotor；
Described outer shaft is also the power shaft of described two speed dual clutch gears, and described outer shaft is arranged on the periphery of described interior axle, and
Can be independently rotated relative to interior axle；
The power of electromotor and the second motor all can be delivered to differential mechanism by two speed dual clutch gear outputs.
Described two speed dual clutch gears are by first clutch, second clutch, the first drive mechanism and the second drive mechanism group
Become；Described first clutch, second clutch are separately positioned on two parallel axles, and the first drive mechanism passes through the first clutch
Device, second clutch and the second drive mechanism are connected；Second motor rotor is connected by outer shaft and the first drive mechanism.
First drive mechanism is gear drive or chain-drive mechanism.
Second drive mechanism includes gear A 5, gear B 13 and gear C 16；Gear A 5 engages with gear C 16, gear B 13 with
Gear C 16 engages.
Described connection switching units is the 3rd clutch, and described 3rd clutch is dry clutch or wet clutch.
Configure an amortisseur at described engine power output, play shock absorbing effect.
Compared with prior art the invention has the beneficial effects as follows:
Second motor can drive vehicle always, meets car load dynamic property demand, it is ensured that pure electronic performance；Connected by control
The separation of switching units or combination, it is achieved the switching of power assembly operational mode.During electrokinetic cell electricity abundance (SOC be 35%～
100%), the second motor is operated alone vehicle and travels, and electromotor is shut down, and reduces oil consumption and discharge.During electrokinetic cell electricity deficiency
(SOC is 25%～35%), utilizes the first motor for power battery charging to meet vehicle power demand, at a high speed when running at a low speed
During traveling, electromotor participates in driving to meet the demand driving power and electrical accessory power consumption of vehicle, improves electromotor
Rate of load condensate, thus improve the fuel economy of car load.The present invention when electrokinetic cell electricity deficiency, tandem drive car during low speed
, parallel drive vehicle during high speed, improve the long-distance performance of high speed of vehicle.This power assembly structure is relatively simple, and cost is relatively low.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is the stroke-increasing electric automobile power assembly structural representation described in embodiment 1；
Fig. 2 is the stroke-increasing electric automobile power assembly structural representation described in embodiment 2；
Fig. 3 is the second drive mechanism schematic diagram of described stroke-increasing electric automobile power assembly two speed dual clutch gear；
In figure:
1, electromotor, 2, gear G, 3, gear H, 4, second clutch, 5, gear A, 6, outer shaft, the 7, second electricity
Motivation stator, the 8, second motor rotor, 9, interior axle, the 10, first motor stator, the 11, first motor rotor, 12,
3rd clutch, 13, gear B, 14, first clutch, 15, gear D, 16, gear C, 17, differential mechanism, 18, half
Axle, 19, wheel, 20, gear E, 21, gear F, 22, sprocket wheel A, 23, sprocket wheel B, 24, sprocket wheel C, 25, chain,
30, amortisseur.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is explained in detail:
Embodiment 1
Refering to Fig. 1, described stroke-increasing electric automobile power assembly includes: electromotor 1, gear drive, the second drive mechanism,
Second clutch 4, gear A 5, outer shaft 6, the second motor stator 7, the second motor rotor 8, interior axle 9, first is electronic
Machine stator 10, the first motor rotor 11, the 3rd clutch 12, gear B 13, first clutch 14, gear C 16, differential
Device 17, semiaxis 18, wheel 19.
In this embodiment, described connection switching units is the 3rd clutch 12.
First motor includes the first motor stator 10, the first motor rotor 11；Second motor includes the second motor stator
Son 7, the second motor rotor 8.
Second motor is powered by the electrokinetic cell being not shown in the drawing, when vehicle is out of service, and can be by outside electric power network to dynamic
Power battery is charged, and in vehicle travel process, when electrokinetic cell electricity drops to a certain degree, electromotor 1 drives
One motor is power battery charging.
The second described motor peak power is determined by car load dynamic property, and it is not only greater than the demand power that car load hundred kilometers accelerates,
And more than the demand power of car load max. speed, concrete watt level is by complete vehicle curb weight, hundred kilometers of acceleration time, car loads
Windage, rolling resistance etc. determine.Demand power and the demand power of car load max. speed that wherein car load hundred kilometers accelerates are this area
Technical staff is assured that by routine techniques means.
Two speed dual clutch gears include first clutch 14, second clutch 4, gear drive, the second drive mechanism.
Gear drive is made up of gear E20, gear G2 and gear F21；Gear E20 engages with gear G2, gear G2
Engage with gear F21；Second drive mechanism is made up of gear A 5, gear B 13 and gear C 16, gear A 5 and gear C 16
Engagement, gear B 13 engages with gear C 16.
Two clutches 14,4 of described two speed dual clutch gears are arranged on two different axles of axis, but these two axles
It it is configured in parallel.
Gear E20 is connected with first clutch 14, and first clutch 14 is connected with gear B 13；Gear F21 and the second clutch
Device 4 is connected, and second clutch 4 is connected with gear A 5；
Power between described outer shaft and described two speed dual clutch gears passes through gear drive and realizes.
Electromotor 1 is connected with the first motor rotor 11 by interior axle 9.Second motor rotor 8 is by outer shaft 6 and gear
G2 connects.Second motor rotor 8 is connected with the first motor rotor 11 by outer shaft 6 and the 3rd clutch 12.
Described outer shaft is also the power shaft of described two speed dual clutch gears；The described outer periphery being located in described interior axle, and energy
Enough independently rotated with described interior axle；
In two speed dual clutch gears, gear A 5 and gear C 16 are in normal engagement, and gear B 13 is with gear C 16 also
It is in normal engagement.When first clutch 14 combines, and second clutch 4 separates, the second motor or electromotor 1
Power is delivered to differential mechanism 17 by gear B 13, gear C 16, then passes to wheel 19, two speed dual clutch by semiaxis 18
Transmission duty is at one grade；When first clutch 14 separates, and second clutch 4 combines, the second motor or electromotor 1
Power be delivered to differential mechanism 17 by gear A 5, gear C 16, then pass to wheel 19, two speed dual clutch by semiaxis 18
Transmission duty is at two grades；When first clutch 14 separates, and second clutch 4 separates, the second motor or electromotor 1
Power can not be delivered to differential mechanism 17；When the second motor or electromotor 1 work, first clutch 14 and second from
Clutch 4 not in combination with.
Clutch end at described electromotor 1 configures an amortisseur 30, cuts down electromotor and is delivered to the vibrations of the first motor.
HCU is by controlling separation or the combination of two clutches of described two speed dual clutch gears, it is achieved described two grades pairs
Clutch speed-changing mechanism is with two gear ratio transmission power, and electromotor can effectively regulate electromotor operation interval when driving, it is ensured that car
Dynamic property and economy.
According to power battery charged state (SOC), described stroke-increasing electric automobile power assembly has two working stages: electricity disappears
Consumption (CD) stage and electricity maintain (CS) stage.When electrokinetic cell electricity sufficient (SOC is 35%～100%), described increasing
Formula power assembly of electric automobile is operated in the CD stage, when electrokinetic cell electricity is reduced to a certain degree (SOC is 25%～35%)
Time, described stroke-increasing electric automobile power assembly enters into the CS stage.Under the CD stage, described stroke-increasing electric automobile power is total
Become to be operated in electric-only mode.Under the CS stage, described stroke-increasing electric automobile power assembly has following several mode of operation: low speed
Series model, high speed traveling power generation mode, high speed engine are operated alone pattern and high-speed joint drive pattern.Under the CS stage,
Owing to electromotor can directly participate in driving, decrease the quadratic loss of energy, so the long-distance better performances of its high speed.
Under CD stage and CS stage, power assembly mode of operation see table.
HCU is by controlling separation or the combination of the 3rd clutch 12, it is achieved described stroke-increasing electric automobile power assembly work
The switching of pattern.The work of each parts of power assembly under described stroke-increasing electric automobile power assembly mode of operation and each mode of operation
State is as described below.
Under low speed or high speed electric-only mode, electromotor 1 quits work, and the 3rd clutch 12 separates, and the second motor is independent
Driving vehicle travels.
Under low speed series model, electromotor 1 works, and the 3rd clutch 12 separates, the first motor generating, the second motor list
Vehicle is solely driven to travel.
Under high speed traveling power generation mode, electromotor 1 works, and the 3rd clutch 12 combines, and the first motor generating, second is electronic
Machine is with turning, and electromotor 1 is operated alone vehicle and travels.
High speed engine is operated alone under pattern, and electromotor 1 works, and the 3rd clutch 12 combines, and the first motor is with turning, and second is electric
Motivation is with turning, and electromotor 1 is operated alone vehicle and travels.
Under high-speed joint drive pattern, electromotor 1 works, and the 3rd clutch 12 combines, and the second motor and electromotor 1 are combined
Driving vehicle travels.
Under different working modes, the duty of each parts of power assembly see table.
Embodiment 2
Refering to shown in Fig. 2, described stroke-increasing electric automobile power assembly possesses: electromotor 1, chain-drive mechanism, gear H3,
Second clutch 4, gear A 5, outer shaft 6, the second motor stator 7, the second motor rotor 8, interior axle 9, first is electronic
Machine stator 10, the first motor rotor 11, the 3rd clutch 12, gear B 13, first clutch 14, gear D 15, gear
C16, differential mechanism 17, semiaxis 18, wheel 19.
In this embodiment, described connection switching units is the 3rd clutch 12.
Two clutches of described two speed dual clutch gears are arranged on two different axles of axis, but these two axles are parallel
Configuration.Two speed dual clutch gears include first clutch 14, second clutch the 4, first drive mechanism, the second transmission
Mechanism, in this embodiment, the first drive mechanism is chain-drive mechanism, and chain-drive mechanism is by sprocket wheel A22, sprocket wheel B23, sprocket wheel
C24 and chain 25 form, and the second drive mechanism is made up of gear A 5, gear B 13 and gear C 16, gear A 5 and gear C 16
Engagement, gear B 13 engages with gear C 16.Sprocket wheel A22 is connected with first clutch 14, first clutch 14 and gear B 13
It is connected；Sprocket wheel B23 is connected with second clutch 4, and second clutch 4 is connected with gear A 5.
Power between described outer shaft 6 and described two speed dual clutch gears passes through chain-drive mechanism and realizes.
Described outer shaft 6 is also the power shaft of described two speed dual clutch gears；Described outer shaft 6 is located at the periphery of described interior axle 9,
And can be independently rotated with described interior axle 9；
First motor includes the first motor stator 10, the first motor rotor 11；Second motor includes the second motor stator
Son 7, the second motor rotor 8.
Second motor is powered by the electrokinetic cell being not shown in the drawing, when vehicle is out of service, and can be by outside electric power network to dynamic
Power battery is charged, and in vehicle travel process, when electrokinetic cell electricity drops to a certain degree, electromotor 1 drives
One motor is power battery charging.
The second described motor peak power is determined by car load dynamic property, and it is not only greater than the demand power that car load hundred kilometers accelerates,
And more than the demand power of car load max. speed, concrete watt level is by complete vehicle curb weight, hundred kilometers of acceleration time, car loads
Windage, rolling resistance etc. determine.Demand power and the demand power of car load max. speed that wherein car load hundred kilometers accelerates are this area
Technical staff is assured that by routine techniques means.
Electromotor 1 is connected with the first motor rotor 11 by interior axle 9.Second motor rotor 8 is by outer shaft 6 and Chain conveyer
Mechanism connects.Second motor rotor 8 is connected with the first motor rotor 11 by outer shaft 6 and the 3rd clutch 12.
In two speed dual clutch gears, gear A 5 and gear C 16 are in normal engagement, and gear B 13 is with gear C 16 also
It is in normal engagement.When first clutch 14 combines, and second clutch 4 separates, the second motor or electromotor 1
Power is delivered to differential mechanism 17 by gear B 13, gear C 16, then passes to wheel 19, two speed dual clutch by semiaxis 18
Transmission duty is at one grade；When first clutch 14 separates, and second clutch 4 combines, the second motor or electromotor 1
Power be delivered to differential mechanism 17 by gear A 5, gear C 16, then pass to wheel 19, two speed dual clutch by semiaxis 18
Transmission duty is at two grades；When first clutch 14 separates, and second clutch 4 separates, the second motor or electromotor 1
Power can not be delivered to differential mechanism 17；When the second motor or electromotor 1 work, first clutch 14 and second from
Clutch 4 not in combination with.
Clutch end at electromotor 1 can configure an amortisseur, weakens electromotor and is delivered to the vibrations of the first motor.
HCU is by controlling separation or the combination of two clutches of described two speed dual clutch gears, it is achieved described two grades pairs
Clutch speed-changing mechanism is with two gear ratio transmission power, and electromotor can effectively regulate electromotor operation interval when driving, it is ensured that car
Dynamic property and economy.
According to power battery charged state (SOC), described stroke-increasing electric automobile power assembly has two working stages: electricity disappears
Consumption (CD) stage and electricity maintain (CS) stage.When battery electric quantity sufficient (SOC is 35%～100%), described extended-range
Power assembly of electric automobile is operated in the CD stage, when battery electric quantity is reduced to a certain degree (SOC is 25%～35%), described
Stroke-increasing electric automobile power assembly enters into the CS stage.Under CD stage and CS stage, described stroke-increasing electric automobile power is total
The mode of operation become is identical with specific embodiment 1, the duty of each parts of power assembly under different mode of operations
Identical with specific embodiment 1.
Additionally, this invention is not limited to the content represented in above-mentioned embodiment, it is possible to without departing from the scope of the present invention example
The suitably deformation inside carried out or amendment belong to the claimed category of the present invention.
Claims (6)
1. a stroke-increasing electric automobile power assembly, it is characterised in that:
Including electromotor (1), the first motor, the second motor, interior axle (9), outer shaft (6), two speed dual clutch variable-speed motors
Structure and connection switching units；
Described electromotor (1) is connected with the first motor rotor (11) by interior axle (9)；Second motor rotor (8) leads to
Cross outer shaft (6) to be connected with two speed dual clutch gears；First motor rotor (11) disconnects single by outer shaft (6), connection
Unit is connected with the second motor rotor (8)；
Described outer shaft (6) is also the power shaft of described two speed dual clutch gears, and described outer shaft (6) is arranged on described interior axle
(9) periphery, and can be independently rotated relative to interior axle (9)；
Electromotor (1) all can be delivered to differential mechanism (17) by two speed dual clutch gear outputs with the power of the second motor；
Described two speed dual clutch gears are passed by first clutch (14), second clutch (4), the first drive mechanism and second
Motivation structure forms；Second motor rotor (8) is connected with the first drive mechanism by outer shaft (6)；
Described first clutch (14), second clutch (4) are separately positioned on two parallel axles, and the first drive mechanism leads to
Cross first clutch (14), second clutch (4) is connected with the second drive mechanism.
Stroke-increasing electric automobile power assembly the most according to claim 1, it is characterised in that:
First drive mechanism is gear drive or chain-drive mechanism.
Stroke-increasing electric automobile power assembly the most according to claim 1, it is characterised in that:
Second drive mechanism includes gear A (5), gear B (13) and gear C (16)；Gear A (5) and gear C (16)
Engagement, gear B (13) engages with gear C (16).
Stroke-increasing electric automobile power assembly the most according to claim 1, it is characterised in that:
Described connection switching units is the 3rd clutch (12), and described 3rd clutch (12) is dry clutch or wet type
Clutch.
Stroke-increasing electric automobile power assembly the most according to claim 1, it is characterised in that:
Described engine power output one amortisseur (30) of configuration.
Stroke-increasing electric automobile power assembly the most according to claim 1, it is characterised in that:
The second described motor peak power is not only greater than car load hundred kilometers and accelerates demand power and more than max. speed demand
Power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410129120.1A CN103921668B (en) | 2014-04-01 | 2014-04-01 | A kind of stroke-increasing electric automobile power assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129120.1A CN103921668B (en) | 2014-04-01 | 2014-04-01 | A kind of stroke-increasing electric automobile power assembly |
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| Publication Number | Publication Date |
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| CN103921668A CN103921668A (en) | 2014-07-16 |
| CN103921668B true CN103921668B (en) | 2016-08-17 |
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| CN201410129120.1A Active CN103921668B (en) | 2014-04-01 | 2014-04-01 | A kind of stroke-increasing electric automobile power assembly |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI607899B (en) * | 2015-11-04 | 2017-12-11 | 財團法人工業技術研究院 | Two-speed transmission for electric vehicle |
| CN111301144A (en) * | 2018-12-11 | 2020-06-19 | 广州汽车集团股份有限公司 | Automobile hybrid power coupling system and vehicle |
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| EP1092581A2 (en) * | 1999-10-12 | 2001-04-18 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and method of controlling the same |
| CN101875297A (en) * | 2009-12-10 | 2010-11-03 | 安徽巨一自动化装备有限公司 | Double-motor hybrid driving and speed changing device |
| CN102085795A (en) * | 2009-12-04 | 2011-06-08 | 上海汽车集团股份有限公司 | Hybrid driving system of vehicle clutch and power coupling synchronizer combined gear shift |
| CN203283020U (en) * | 2013-04-28 | 2013-11-13 | 长城汽车股份有限公司 | Hybrid power speed changer and corresponding automobile |
| CN204161082U (en) * | 2014-04-01 | 2015-02-18 | 中国第一汽车股份有限公司 | A kind of stroke-increasing electric automobile dynamic assembly |
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2014
- 2014-04-01 CN CN201410129120.1A patent/CN103921668B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1092581A2 (en) * | 1999-10-12 | 2001-04-18 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and method of controlling the same |
| CN102085795A (en) * | 2009-12-04 | 2011-06-08 | 上海汽车集团股份有限公司 | Hybrid driving system of vehicle clutch and power coupling synchronizer combined gear shift |
| CN101875297A (en) * | 2009-12-10 | 2010-11-03 | 安徽巨一自动化装备有限公司 | Double-motor hybrid driving and speed changing device |
| CN203283020U (en) * | 2013-04-28 | 2013-11-13 | 长城汽车股份有限公司 | Hybrid power speed changer and corresponding automobile |
| CN204161082U (en) * | 2014-04-01 | 2015-02-18 | 中国第一汽车股份有限公司 | A kind of stroke-increasing electric automobile dynamic assembly |
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| CN103921668A (en) | 2014-07-16 |
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