CN202896270U - Extend range type electric vehicle power system utilizing double-clutch two-gear transmission - Google Patents
Extend range type electric vehicle power system utilizing double-clutch two-gear transmission Download PDFInfo
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- CN202896270U CN202896270U CN201220475666.9U CN201220475666U CN202896270U CN 202896270 U CN202896270 U CN 202896270U CN 201220475666 U CN201220475666 U CN 201220475666U CN 202896270 U CN202896270 U CN 202896270U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 102
- 238000002485 combustion reaction Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 230000009977 dual effect Effects 0.000 claims description 60
- 244000144983 clutch Species 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by parallel flow paths, e.g. dual clutch transmissions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to an extend range type electric vehicle power system utilizing a double-clutch two-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 first double-clutch transmission device, a first clutch of the first double-clutch transmission is connected with a shell of a second double-clutch transmission device through a transmission shaft, and a second clutch of the first double-clutch transmission device is connected with a rotor of a first motor. A rotor of a second motor is connected with the shell of the second double-clutch transmission device through a transmission shaft, separation or combination of two clutches of the second double-clutch transmission device is controlled to control output power of two sets of variable gear mechanisms, and two gears can be achieved. During low-speed driving, a vehicle is driven by the second motor to avoid low-speed and low-load work of an engine, and economy and emission performance of the whole vehicle are improved. During high-speed driving, 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 two clutch two shift transmissions, 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;
(1) because the combustion engine of traditional vehicle (or hybrid vehicle) need to 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, 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, affects the car load economy.
Summary of the invention
The purpose of this utility model is to provide a kind of range extended electric vehicle power system that adopts two clutch two shift transmissions, it adopts the combustion engine of a miniwatt grade 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 loss due to friction and the electromagnetism loss of the first electrical motor; Provide two gear transmitting ratios by two cover change gear mechanisms 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 car load economy and emission performance.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 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 range extended electric vehicle power system that adopts two clutch two shift transmissions, be comprised of combustion engine, the first electrical motor, the second electrical motor, two dual clutch transmissions and two cover change gear mechanisms, wherein the second dual clutch transmission can be used for gearshift; It is characterized in that: the bent axle of combustion engine is connected with the first dual clutch transmission housing, the first clutch of the first dual clutch transmission is connected with the second dual clutch transmission housing by transmission shaft, the second clutch of the first dual clutch transmission is connected with the first motor rotor, the 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 the second dual clutch transmission, control respectively two cover change gear mechanism outputting powers, can realize two gears.
Described the second motor rotor is connected with the second dual clutch transmission housing by transmission shaft, first clutch combination when the second dual clutch transmission, second clutch separates, and power is by the output of first stud gear mechanism, and it is two gears that the transmitting ratio of first stud gear mechanism equals 1; When the first clutch separation of the 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 the first dual clutch transmission first clutch combination is carried out transmission of power between combustion engine and the second electrical motor, and the first dual clutch transmission first clutch separates, and transmission of power disconnects between combustion engine and the second electrical motor; The first dual clutch transmission second clutch combination is carried out transmission of power between combustion engine and the first electrical motor, and the first dual clutch transmission second clutch separates, and carries out transmission of power between combustion engine and the first electrical motor and disconnects.
Described combustion engine, the first dual clutch transmission and the first electrical motor can be cancelled, and power system is worked under electric-only mode always, are a kind of 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 the first 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; When cancelling the first dual clutch transmission 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 the first clutch of the first dual clutch transmission, 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, the first 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 range extended electric vehicle 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, and 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 two clutch two shift transmissions, 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, the 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 form.
It is characterized in that: the bent axle of combustion engine 1 is connected with the first dual clutch transmission housing 2.The first clutch 3 of the first dual clutch transmission is connected with the second dual clutch transmission housing 7 by transmission shaft 12.The second clutch 9 of the first dual clutch transmission is connected with the first motor rotor 18.The 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 the first motor rotor 18.Second clutch 4 separates, and transmission of power disconnects between combustion engine 1 and the 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 the second motor rotor 11.First clutch 3 separates, and transmission of power disconnects between combustion engine 1 and the 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 gears of 1 transmitting ratio for the second electrical motor provides.
9 combinations of the second dual clutch transmission second clutch, first clutch 8 separates, and power is a gear by 5 outputs of second stud gear mechanism for the 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 (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 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.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 the first electrical motor quits work, and the second electrical motor drives separately Vehicle Driving Cycle.
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 the first electrical motor, the second electrical motor drives separately Vehicle Driving Cycle.
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 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, 3 combinations of the first dual clutch transmission first clutch, the first dual clutch transmission 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, 3 combinations of the first dual clutch transmission first clutch, the first dual clutch transmission 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 (4)
1. range extended electric vehicle power system that adopts two clutch two shift transmissions, be comprised of combustion engine, the first electrical motor, the second electrical motor, two dual clutch transmissions and two cover change gear mechanisms, wherein the second dual clutch transmission can be used for gearshift; It is characterized in that: the bent axle of combustion engine is connected with the first dual clutch transmission housing, the first clutch of the first dual clutch transmission is connected with the second dual clutch transmission housing by transmission shaft, the second clutch of the first dual clutch transmission is connected with the first motor rotor, the 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 the second dual clutch transmission, control respectively two cover change gear mechanism outputting powers, can realize two gears.
2. a kind of range extended electric vehicle power system that adopts two clutch two shift transmissions according to claim 1, it is characterized in that described the second motor rotor is connected with the second dual clutch transmission housing by transmission shaft, first clutch combination when the second dual clutch transmission, second clutch separates, power is by the output of first stud gear mechanism, and it is two gears that the transmitting ratio of first stud gear mechanism equals 1; When the first clutch separation of the 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 range extended electric vehicle power system that adopts two clutch two shift transmissions according to claim 1, it is characterized in that described the first dual clutch transmission first clutch combination, carry out transmission of power between combustion engine and the second electrical motor, the first dual clutch transmission first clutch separates, and transmission of power disconnects between combustion engine and the second electrical motor; The first dual clutch transmission second clutch combination is carried out transmission of power between combustion engine and the first electrical motor, and the first dual clutch transmission second clutch separates, and carries out transmission of power between combustion engine and the first electrical motor and disconnects.
4. a kind of range extended electric vehicle power system that adopts two clutch two shift transmissions according to claim 1, it is characterized in that described combustion engine, the first dual clutch transmission and the first electrical motor can cancel, power system is worked under electric-only mode always, is a kind of pure electric vehicle power system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475666.9U CN202896270U (en) | 2012-09-18 | 2012-09-18 | Extend range type electric vehicle power system utilizing double-clutch two-gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475666.9U CN202896270U (en) | 2012-09-18 | 2012-09-18 | Extend range type electric vehicle power system utilizing double-clutch two-gear transmission |
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| CN202896270U true CN202896270U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220475666.9U Expired - Fee Related CN202896270U (en) | 2012-09-18 | 2012-09-18 | Extend range type electric vehicle power system utilizing double-clutch two-gear transmission |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874092A (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 two-speed transmission |
| CN106114189A (en) * | 2016-08-31 | 2016-11-16 | 中国汽车技术研究中心 | Novel hybrid power driving device for automobile |
| DE102015013528B3 (en) * | 2015-10-19 | 2017-01-26 | Audi Ag | Transmission arrangement and method for operating a motor vehicle |
| CN106515417A (en) * | 2016-10-17 | 2017-03-22 | 中国第汽车股份有限公司 | Hybrid power driving system |
| WO2020108162A1 (en) * | 2018-11-29 | 2020-06-04 | Ningbo Geely Automobile Research & Development Co., Ltd. | A transmission for a vehicle |
| CN114905956A (en) * | 2022-05-30 | 2022-08-16 | 奇瑞汽车股份有限公司 | Vehicle hybrid powertrain, control method, and vehicle |
-
2012
- 2012-09-18 CN CN201220475666.9U patent/CN202896270U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874092A (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 two-speed transmission |
| CN102874092B (en) * | 2012-09-18 | 2016-01-20 | 中国第一汽车股份有限公司 | A kind of range extended electric vehicle power system adopting two clutch two-speed transmission |
| DE102015013528B3 (en) * | 2015-10-19 | 2017-01-26 | Audi Ag | Transmission arrangement and method for operating a motor vehicle |
| CN106114189A (en) * | 2016-08-31 | 2016-11-16 | 中国汽车技术研究中心 | Novel hybrid power driving device for automobile |
| CN106515417A (en) * | 2016-10-17 | 2017-03-22 | 中国第汽车股份有限公司 | Hybrid power driving system |
| WO2020108162A1 (en) * | 2018-11-29 | 2020-06-04 | Ningbo Geely Automobile Research & Development Co., Ltd. | A transmission for a vehicle |
| US11890936B2 (en) | 2018-11-29 | 2024-02-06 | Ningbo Geely Automobile Research & Development Co., Ltd. | Transmission for a vehicle |
| CN114905956A (en) * | 2022-05-30 | 2022-08-16 | 奇瑞汽车股份有限公司 | Vehicle hybrid powertrain, control method, and vehicle |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20190918 |