CN204161080U - A kind of power system of electric automobile - Google Patents
A kind of power system of electric automobile Download PDFInfo
- Publication number
- CN204161080U CN204161080U CN201420155338.XU CN201420155338U CN204161080U CN 204161080 U CN204161080 U CN 204161080U CN 201420155338 U CN201420155338 U CN 201420155338U CN 204161080 U CN204161080 U CN 204161080U
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- 230000000694 effects Effects 0.000 description 6
- 230000035939 shock Effects 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
The utility model relates to a kind of power system of electric automobile, and the driving engine of this system is connected with the first motor rotor by interior axle, and the second motor rotor is connected with outer shaft, and outer shaft is connected with one grade of gear mesh; Be located in the periphery of described interior axle outward, and independently can rotate separately with interior axle; Second electrical motor by outer shaft, one grade of gear mesh and main reduction gear to outputing power to diff, when gearshift engages with one grade of gear mesh, driving engine by one grade of gear mesh and main reduction gear to outputing power to diff; When gearshift and second speed gear are to when engaging, driving engine by second speed gear to main reduction gear to outputing power to diff; Diff is connected with wheel by semiaxis.The utility model when electrokinetic cell electricity is not enough, tandem drive vehicle during low speed, parallel drive vehicle during high speed, improves the long-distance performance of high speed; First electrical motor and the second electrical motor Integrated design, compact conformation.
Description
Technical field
The utility model belongs to electronlmobil field, relates to a kind of power system of electric automobile, particularly has driving engine and two electrical motors and can carry out the externally rechargeable type power system of electric automobile of engine drive and direct motor drive.
Background technology
In the prior art, following content is known to.
Extended-range electric vehicle is that one is furnished with vehicle mounted dynamic battery and auxiliary power unit (AuxiliaryEnergySupply, AES) pure electrically operated electronlmobil, when electric energy is sufficient, battery provides all energy needed for vehicle traveling, when electric energy is not enough, auxiliary power unit work.
Stroke-increasing electric automobile mode of operation is divided into two stages, and first stage is CD(ChargeDepleting, electric quantity consumption) stage, keep pure motor driving under this stage, in limited travelled distance, provide energy by battery; Subordinate phase is CS(ChargeSustaining, and electricity keeps) stage, under this stage, driving engine participation work, realizes the prolongation of car load continual mileage.
There are two kinds of configurations in current stroke-increasing electric automobile, comprises series connection stroke boosting electronlmobil (as AudiA1e-tron) and series-parallel connection stroke-increasing electric automobile (as ChevroletVOLT).In series connection stroke boosting battery-driven car, electrical motor is for driving propulsion source, driving engine not Direct driver vehicle, and just when electrokinetic cell electricity drops to a certain degree, driving engine just can start, and drive electrical generators generates electricity, for drive motor provides energy.Series connection stroke boosting power system of electric automobile is comparatively simple, and cost is lower.In series-parallel connection stroke-increasing electric automobile VOLT, in the CS stage, tandem drive during low speed driving, when running at high speed, electrical motor is combined with driving engine and is driven vehicle to travel, and under the CS stage, dynamic property and oil consumption are all better than series connection stroke boosting electronlmobil.
The most of user of China purchases car first, higher to the long-distance performance requriements of high speed.Because current battery energy density is low, pure electric vehicle continual mileage is shorter, can not meet the requirement of high speed long-distance running.
As above-mentioned series connection stroke boosting electronlmobil, the low power driving engine of configuration and electrical generator usually, under the CS stage, dynamic property can only meet traveling of going home.If increase the power of driving engine and electrical generator with the long-distance dynamic property of the high speed improving the 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 electronlmobil high speed.
Series-parallel connection stroke-increasing electric automobile dynamic property and oil consumption under the CS stage are all better than series connection stroke boosting electronlmobil, can meet the requirement of high speed long-distance running, but power system is complicated, cost is higher.
Summary of the invention
The technical matters that invention will solve is to provide a kind ofly has the long-distance performance of good high speed, and power system is comparatively simple, lower-cost power system of electric automobile.
In order to solve the problems of the technologies described above, power system of electric automobile of the present utility model comprises driving engine, the first electrical motor, the second electrical motor, inner shaft, outer shaft, one grade of gear mesh, second speed gear to, main reduction gear to, gearshift, diff; Described driving engine is connected with the first motor rotor by interior axle, and the second motor rotor is connected with outer shaft, and outer shaft is connected with one grade of gear mesh; Second electrical motor by outer shaft, one grade of gear mesh and main reduction gear to outputing power to diff, when gearshift engages with one grade of gear mesh, driving engine by one grade of gear mesh and main reduction gear to outputing power to diff; When gearshift and second speed gear are to when engaging, driving engine by second speed gear to main reduction gear to outputing power to diff; Diff is connected with wheel by semiaxis.
The first described electrical motor and the second electrical motor are configured at the same side of one grade of gear mesh, and are configured on same axis, and the structure of side can be made to reduce, and improve lift-launch property.
Described engine power output configures a bumper, plays shock absorbing effect.
The utility model also can according to car load actual arrangement demand, and by the left side of the second motor arrangement at one grade of gear mesh, the first electrical motor is between second speed gear pair and driving engine, and the first electrical motor and the second electrical motor are configured on same axis.Between driving engine and the first electrical motor, configure a bumper, or the first electrical motor and second speed gear between configure a bumper, play shock absorbing effect.
Described gearshift has three operating states, is respectively the first operating state be connected with one of them gear of one grade of gear mesh, the second operating state that one of them gear right with second speed gear is connected, the 3rd operating state that is not connected with any gear.
The utility model is by controlling the operating state of gearshift, realize the switching of power system of electric automobile mode of operation, selectively by one grade of gear mesh or second speed gear to outputting power, when gearshift is in the first operating state, driving engine is by one grade of gear mesh, main reduction gear, diff and semiaxis outputting power are to wheel, when gearshift is in the second operating state, driving engine is by second speed gear pair, main reduction gear, diff and semiaxis outputting power are to wheel, when gearshift is in the 3rd operating state, driving engine can not directly outputting power to wheel.
The second described electrical motor peak power is determined by car load dynamic property; it is not only greater than the demand power that car load hundred kilometers accelerates; and be greater than the demand power of car load maximum speed; when electrokinetic cell electricity is sufficient (SOC is 35% ~ 100%); second electrical motor drives separately vehicle to travel; driving engine is shut down, and reduces oil consumption and discharge.
Good effect of the present utility model is: the second electrical motor can drive vehicle always, and car load dynamic property demand is met by the second electrical motor, ensures pure electronic performance.By controlling the operating state of gearshift, when electrokinetic cell electricity is sufficient (SOC is 35% ~ 100%), the second electrical motor drives separately vehicle to travel, and driving engine is shut down, and reduces oil consumption and discharge.When electrokinetic cell electricity is not enough (SOC is 25% ~ 35%), utilize the first electrical motor for power battery charging is to meet vehicle power demand during low speed driving, when running at high speed, driving engine participates in driving with the demand of the driving power and electrical accessory consumed power that meet vehicle, improve the rate of load condensate of driving engine, thus improve the fuel economy of car load; The utility model is when electrokinetic cell electricity is not enough, and tandem drive vehicle during low speed, parallel drive vehicle during high speed, improves the long-distance performance of high speed.By one grade of gear mesh or second speed gear to outputting power, engine operation interval is more flexible, can take into account dynamic property and the economy of vehicle simultaneously.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
Fig. 1 is power system of electric automobile embodiment 1 structural representation of the present utility model.
Fig. 2 is power system of electric automobile embodiment 2 structural representation of the present utility model.
Fig. 3 is power system of electric automobile embodiment 3 structural representation of the present utility model.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, power system of electric automobile of the present utility model comprises driving engine 1, first electrical motor, the second electrical motor, interior axle 2, outer shaft 15, one grade of gear mesh, second speed gear to, main reduction gear to, gearshift 4, diff 16, bumper 20; Described driving engine 1 is connected with the first motor rotor 6 by interior axle 2, and the second motor rotor 8 is connected with outer shaft 15, and outer shaft 15 is connected with one grade of gear mesh; Outer shaft 15 is located at the periphery of described interior axle 2, and can rotate with interior axle 2 is independent separately; Second electrical motor is connected with diff 16 with main reduction gear pair by outer shaft 15, one grade of gear mesh, and when gearshift 4 engages with one grade of gear mesh, driving engine 1 is connected with diff 16 with main reduction gear pair by one grade of gear mesh; When gearshift 4 and second speed gear are to when engaging, driving engine 1 is connected with diff 16 with main reduction gear pair by second speed gear; Diff 16 is connected with wheel 18 by semiaxis 17.Bumper 20 is arranged in engine power output, plays shock absorbing effect, cuts down driving engine and is delivered to the right vibrations of the first electrical motor, one grade of gear mesh, second speed gear.
One grade of described gear mesh is often meshed together by low speed gear 5 and low speed gear 11 and forms, and outer shaft 15 is connected with low speed gear 5, and low speed gear 11 is connected with gear 13 by transmission shaft 10.
Described second speed gear is formed often being meshed together by high speed gear 3 and high speed gear 12, and interior axle 2 is connected with high speed gear 3, and high speed gear 12 is connected with gear 13 by transmission shaft 10.
Described main reduction gear often meshes together form by gear 13, gear 14, and gear 14 is fixed on diff 16.
In the art, one grade is often referred to the relatively low gear of speed, and second gear is often referred to the relatively high gear of speed.Therefore above-mentioned low speed gear and high speed gear also not refer to proper low speed and high speed, but relative low speed and high speed.
The first described electrical motor and the second motor arrangement are in the left side of described one grade of gear mesh.
First electrical motor comprises the first motor rotor 6, first motor stator 7; Second electrical motor comprises the second motor rotor 8, second motor stator 9.
Second electrical motor is powered by the electrokinetic cell be not shown in figure, when vehicle is out of service, can be charged to electrokinetic cell by outside electric power network, in vehicle travel process, when electrokinetic cell electricity drops to a certain degree, driving engine 1 drives the first electrical motor to be power battery charging.
The second described electrical motor peak power is determined by car load dynamic property, it is not only greater than the demand power that car load hundred kilometers accelerates, and be greater than the demand power of car load maximum speed, concrete watt level by complete vehicle curb weight, hundred kilometers of pick-up times, car load windages, roll the decisions such as resistance.Wherein to be those skilled in the art just confirmable by routine techniques means for the demand power that accelerates of car load hundred kilometers and the demand power of car load maximum speed.
Gearshift 4 has three operating states, is respectively the first operating state be connected with low speed gear 5, the second operating state be connected with high speed gear 3, the 3rd operating state that is not connected with any gear.
When gearshift 4 is in the first operating state, driving engine 1 is by low speed gear 5, low speed gear 11, gear 13, gear 14, diff 16, semiaxis 17 outputting power are to wheel 18, when gearshift 4 is in the second operating state, driving engine 1 is by high speed gear 3, high speed gear 12, gear 13, gear 14, diff 16, semiaxis 17 outputting power to wheel 18, when gearshift 4 is in the 3rd operating state, driving engine 1 can not directly outputting power to wheel 18.
According to battery charge state (SOC), power system of electric automobile has two working stages: electric quantity consumption (CD) stage and electricity maintain (CS) stage.When battery electric quantity abundance (SOC is 35% ~ 100%), power system of electric automobile is operated in the CD stage, and when battery electric quantity is reduced to a certain degree (SOC is 25% ~ 35%), power system of electric automobile enters into the CS stage.Under the CD stage, power system of electric automobile is operated in electric-only mode.Under the CS stage, power system of electric automobile has following several mode of operation: low speed series model, high speed traveling power generation mode, the independent drive pattern of high speed engine and high-speed joint drive pattern.Under the CS stage, because driving engine can participate in driving directly, decrease the quadratic loss of energy, so the long-distance better performances of its high speed.
Under CD stage and CS stage, power system of electric automobile mode of operation sees the following form.
By controlling the operating state of gearshift mechanism 4, the switching of the power system of electric automobile mode of operation described in realization.Under power system of electric automobile mode of operation and each mode of operation, the mode of operation of dynamic assembly is as described below.
Under low speed or high speed electric-only mode, driving engine 1 quits work, and gearshift 4 is in the 3rd operating state, and the second electrical motor drives separately vehicle to travel.
Under low speed series model, driving engine 1 works, and gearshift 4 is in the 3rd operating state, and HCU controls the first electrical motor and is in power generation operation pattern, and now the second electrical motor drives separately vehicle to travel.
Under high speed traveling power generation mode, driving engine 1 works, and gearshift 4 is in the second operating state, and HCU controls the first electrical motor and is in power generation operation pattern, the second motor stall, and driving engine 1 drives separately vehicle to travel.
Under the independent drive pattern of high speed engine, driving engine 1 works, and gearshift 4 is in the second operating state, and HCU controls the first electrical motor and is in operation mode of changing a job, the second motor stall, and driving engine 1 drives separately vehicle to travel.
Under high-speed joint drive pattern, driving engine 1 works, and gearshift 4 is in the first operating state or the second operating state as required, and HCU controls the first electrical motor and is in operation mode of changing a job, and the second electrical motor and driving engine 1 are combined driving vehicle and travelled.
Under different working modes, the mode of operation of each parts of dynamic assembly sees the following form.
Embodiment 2
As shown in Figure 2, power system of electric automobile of the present utility model possesses: driving engine 1, interior axle 2, high speed gear 3, gearshift 4, low speed gear 5, the first motor rotor 6, first motor stator 7, second motor rotor 8, second motor stator 9, transmission shaft 10, low speed gear 11, high speed gear 12, gear 13, gear 14, outer shaft 15, diff 16, semiaxis 17, wheel 18, bumper 20.Difference from Example 1 is that the second electrical motor is positioned at the left side of one grade of gear mesh, and the first electrical motor is between second speed gear pair and driving engine, and the first electrical motor and the second electrical motor are configured on same axis; Bumper 20 be arranged in the first electrical motor and second speed gear between, play shock absorbing effect, cut down driving engine and the first electrical motor is delivered to the right vibrations of second speed gear, all the other structures are identical with embodiment 1.The mode of operation of power system of electric automobile mode of operation and each assembly parts is identical with embodiment 1.
Embodiment 3
As shown in Figure 3, the difference of the present embodiment and embodiment 2 is, bumper 20 is arranged between driving engine and the first electrical motor, plays shock absorbing effect, cuts down the vibrations that driving engine is delivered to the first electrical motor.All the other structures are identical with embodiment 2.The mode of operation of power system of electric automobile mode of operation and each assembly parts is identical with embodiment 1.
In addition, the utility model is not limited to the content represented in above-mentioned embodiment example, and the suitable distortion can carried out in the scope not departing from the utility model claim 1 or amendment all belong to the claimed category of the utility model.
Claims (7)
1. a power system of electric automobile, it is characterized in that comprising driving engine (1), the first electrical motor, the second electrical motor, interior axle (2), outer shaft (15), one grade of gear mesh, second speed gear to, main reduction gear to, gearshift (4), diff (16); Described driving engine (1) is connected with the first motor rotor (6) by interior axle (2), and the second motor rotor (8) is connected with outer shaft (15); Second electrical motor passes through outer shaft (15), one grade of gear mesh and main reduction gear to outputing power to diff (16), when gearshift (4) engages with one grade of gear mesh, driving engine (1) by one grade of gear mesh and main reduction gear to outputing power to diff (16); When gearshift (4) and second speed gear are to when engaging, driving engine (1) by second speed gear to main reduction gear to outputing power to diff (16); Diff (16) is connected with wheel (18) by semiaxis (17).
2. power system of electric automobile according to claim 1, is characterized in that the first described electrical motor and the second electrical motor are configured at the same side of one grade of gear mesh, and is configured on same axis.
3. power system of electric automobile according to claim 1 and 2, is characterized in that, configures a bumper (20) at driving engine (1) clutch end.
4. power system of electric automobile according to claim 1, it is characterized in that the second described motor arrangement is in the left side of one grade of gear mesh, first electrical motor is positioned between second speed gear pair and driving engine (1), and the first electrical motor and the second electrical motor are configured on same axis.
5. power system of electric automobile according to claim 4, is characterized in that, configures a bumper (20) between driving engine (1) and the first electrical motor.
6. power system of electric automobile according to claim 4, is characterized in that, the first electrical motor and second speed gear between configure a bumper (20).
7. power system of electric automobile according to claim 1, is characterized in that the second described electrical motor peak power is not only greater than car load hundred kilometers and accelerates demand power but also be greater than maximum speed demand power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155338.XU CN204161080U (en) | 2014-04-01 | 2014-04-01 | A kind of power system of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155338.XU CN204161080U (en) | 2014-04-01 | 2014-04-01 | A kind of power system of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204161080U true CN204161080U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420155338.XU Expired - Lifetime CN204161080U (en) | 2014-04-01 | 2014-04-01 | A kind of power system of electric automobile |
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| Country | Link |
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| CN (1) | CN204161080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921666A (en) * | 2014-04-01 | 2014-07-16 | 中国第一汽车股份有限公司 | Electric vehicle power system |
| CN107225956A (en) * | 2016-03-24 | 2017-10-03 | 长城汽车股份有限公司 | Dynamical system |
-
2014
- 2014-04-01 CN CN201420155338.XU patent/CN204161080U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921666A (en) * | 2014-04-01 | 2014-07-16 | 中国第一汽车股份有限公司 | Electric vehicle power system |
| CN107225956A (en) * | 2016-03-24 | 2017-10-03 | 长城汽车股份有限公司 | Dynamical system |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150218 |