CN102774265B - A kind of hybrid electric drive system - Google Patents
A kind of hybrid electric drive system Download PDFInfo
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- CN102774265B CN102774265B CN201210294920.XA CN201210294920A CN102774265B CN 102774265 B CN102774265 B CN 102774265B CN 201210294920 A CN201210294920 A CN 201210294920A CN 102774265 B CN102774265 B CN 102774265B
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Abstract
The present invention relates to a kind of hybrid electric drive system, comprise driving engine, the first motor, the second motor, planetary gear members, driving engine is connected with sun and planet gear gear ring, first motor is connected with sun and planet gear sun wheel, second motor is connected with sun and planet gear pinion carrier on the one hand, be connected with system wheel drive shaft on the other hand, it is characterized in that: also comprise in described actuating device and be arranged at first clutch between gear ring and pinion carrier, be arranged at second clutch between gear ring and casing.This device, by the cooperation of power-transfer clutch, can realize electric-only mode, mixed mode, engine direct drive pattern, effectively can reduce the loss in energy transfer process, be particularly useful for the full size vehicle being often in middle low speed driving work.
Description
Technical field
The present invention relates to a kind of drive system of hybrid power vehicle, belong to vehicle hybrid technical field.
Background technology
Hybrid vehicle makes drive source by two or more energy converter, and wherein have at least a kind of drive source can provide the vehicle of electric energy, and it is generally acknowledged, hybrid vehicle is exactly the vehicle that existing combustion engine has again direct motor drive.Hybrid power system carries out classification according to power transmission route and can be divided into: tandem, parallel and series parallel type.The arrangement of series-parallel hybrid electric system combines the feature of tandem arrangement and parallel arrangement, provide according to different operating mode allow oil, electricity two kinds of energy respectively according to series, parallel or connection in series-parallel in conjunction with Three models work, thus make hybrid power system can select different power driven modes according to different operating modes.
Chinese patent literature CN1769087A discloses a kind of hybrid drive, in this structure, driving engine is connected with pinion carrier, by planetary wheel, power is passed to the gear ring of outer ring and the sun wheel of inner ring, gear ring axle is connected with transmission shaft with electrical motor, and sun wheel is connected with electrical generator.Under starting and speed operation, driving engine does not work, and this mechanism drives in pure electronic mode; When the speed of a motor vehicle improves, engine power is divided into two by planetary system, and one is directly pass to change-speed box by gear ring, and another drives electrical power generators.
As long as driving engine participation work in hybrid drive disclosed in above-mentioned patent documentation, energy will be provided for electrical power generators to electrical generator.When said system is used for full size vehicle, the second electrical motor starting or motion is adopted when starting or low speed, when speed improves further, adopt driving engine and the second electrical motor combination drive, the power of driving engine is transmitted by planetary wheel, when speed improves further, when driving engine is in Effec-tive Function district (70-80km/h), when no longer needing electrical motor to assist, the power of driving engine still needs to be transmitted by planetary wheel, on the one hand for driving vehicle, can produce power lose through planetary transmission, be in the full size vehicle of this speed interval the most of the time, such as city bus, the economy affected due to this part degradation of energy is very important, on the other hand, the power of driving engine needs supply generator to generate electricity, and the power of the driving engine needed for system is greater than for driving required power, easily makes driving engine depart from its fuel-economy district.
The full size vehicle (such as city bus or one-shot job special vehicle) being often in low speed driving work is generally different from the driving engine that dilly uses, when the driving engine of above-mentioned full size vehicle adopts the hybrid drive described in above-mentioned patent documentation, owing to still needing when system engine is in efficient district to be transmitted by planetary wheel, reduce energy rate, therefore, if the full size vehicle being often in middle low speed driving work adopts above-mentioned hybrid drive to be difficult to make such vehicle be in Effec-tive Function district, therefore waste of power is large, is unfavorable for energy conservation.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that the loss of the mode of operation of driving engine combination drive in hybrid power system of the prior art planetary transferring energy is large and is difficult to make the vehicle being often in low speed driving work be in Effec-tive Function district, and then provides a kind of and to be applicable under low speed operation operating mode of being everlasting and to make such vehicle be in the hybrid power system in Effec-tive Function district.
Hybrid power system provided by the invention, comprises driving engine, the first motor, and it has a hollow shaft structure rotor; Its rotor of second motor is connected with a wheel drive shaft; Sun and planet gear, comprise the pinion carrier of gear ring, sun wheel, the multiple satellite gear of connection, wherein said gear ring is connected with the output shaft of described driving engine; Described sun wheel is connected with described first rotor axis of electric; Described pinion carrier is connected by a tween drive shaft with described second rotor; Closed-center system, is electrically connected with described first motor and described second motor; Also comprise the first arrangement of clutch in native system, it is arranged between described gear ring and described pinion carrier, for realizing the connection of described gear ring and described pinion carrier or separating; With the second arrangement of clutch, it is arranged between car body fixed parts and described gear ring, and car body fixed parts can be the housing of sun and planet gear outside here.Wherein, described gear ring has extension, and described extension has vertical with described engine output shaft and parallel with described pinion carrier one side extended surface, and described first arrangement of clutch is arranged between described extended surface and the described side of pinion carrier.
Also comprise a control system in native system, described first motor, the second motor, described first arrangement of clutch, described second arrangement of clutch are electrically connected with described control system.
Accompanying drawing explanation
Fig. 1 is mixed power system structure schematic diagram of the present invention.
Wherein, 10 is driving engines, and 20 is sun and planet gears, and 21 is gear rings, and 210 is gear ring extensions, 22 is sun wheels, and 23 is pinion carriers, and 30 is first motors, and 40 is second motors, 50 is wheel drive shafts, and 51 is tween drive shafts, and C1 is the first arrangement of clutch, and C2 is the second arrangement of clutch.
Detailed description of the invention
Be described in detail below in conjunction with the structural representation of specific embodiment to hybrid power system provided by the invention.
Figure 1 shows that hybrid power system of the present invention, comprise driving engine 10, sun and planet gear 20, first motor 30, second motor 40 and closed-center system, wherein driving engine 10 has an output shaft, first motor 30 has a rotor, and its rotor has hollow shaft structure, second motor 40 has a rotor, and described rotor is connected with wheel drive shaft 50, sun and planet gear comprises gear ring 21, described gear ring 21 center and described driving engine 10 output shaft coaxially fixing, with multiple planetary wheels of described gear ring 21 internal messing, the pinion carrier 23 of fixing with described planetary wheel and the sun wheel 22 with described planetary wheel external toothing, described sun wheel 32 is connected with the rotor of described first motor 30, and described pinion carrier 23 is connected by a tween drive shaft 51 with described second rotor, closed-center system is electrically connected with described first motor 30 and described second motor 40, and for being described electrical generator and motor, arranging described closed-center system in the present embodiment is super capacitor, in addition, also comprise the first arrangement of clutch C1 and the second arrangement of clutch C2, wherein, first arrangement of clutch C1 is arranged between described gear ring 21 and described pinion carrier 23, gear ring 21 described in the present embodiment has extension 210, axle center and described driving engine 10 output shaft of described extension 210 are located along the same line, being fixedly connected with described driving engine 10 output shaft of described extension 210, described extension 210 has an extended surface mutually vertical and parallel with described pinion carrier 23 1 side with described engine output shaft, described first arrangement of clutch C1 is arranged between described extended surface and the described side of pinion carrier 23, arranging described first arrangement of clutch C1 in the present embodiment is lamella clutch, comprises the clutch-plate be arranged on described extended surface 210 and the clutch-plate being arranged on described pinion carrier 23 side, second arrangement of clutch C2 is arranged between car body fixed parts and described sun wheel 22, described car body fixed parts is the housing being arranged on described sun and planet gear 20 outside, described second arrangement of clutch C2 is steel band type power-transfer clutch, and described steel band type power-transfer clutch comprises the steel band that is fixed in inner walls and coordinates locking with described steel band or throw off described gear ring 21,
As an alternative embodiment of the invention, described second arrangement of clutch C2 also can be multi-plate wet clutch, described multi-plate wet clutch comprises and installs the clutch-plate put the male splines structure outside gear ring and engage, and the clutch-plate engaged with the internal spline structure of device on housing.
As an alternative embodiment of the invention, described closed-center system can be electrokinetic cell.
Further, on the basis of above-described embodiment, also comprise a control system, described first motor 30, described second motor 40, described first arrangement of clutch C1 and described second arrangement of clutch C2 are electrically connected with described control system, are namely controlled the mode of operation of the first motor 30 or the second motor 40 easily by control system.
Hybrid electric drive system described in the present embodiment has following four kinds of mode of operation:
One, pure motorized motions pattern: driving engine 10 does not start, first arrangement of clutch C1 is in disengaged condition, second arrangement of clutch C2 is in engagement state, first motor 30 is made electrical motor and is used, powered to the first motor 30 by closed-center system, what control system controlled the first motor 30 rotor rotates through the sun wheel 22 that rotor shaft passes to sun and planet gear, and the rotation of sun wheel 22 drives the rotation of pinion carrier 23, thus drive the rotation of wheel drive shaft 50, and then drive wheel.Second motor 40 dallies, not consumed energy.Rotating speed and the torque of adjustment first motor 30 can be needed according to operating mode.Because gear ring 21 and casing are in engagement state, gear ring 21 is fixed, and the rotating speed of the first motor 30 is exported by sun and planet gear with certain transmitting ratio, drives separately vehicle to travel by the first motor 30.In order to play the advantage of native system to greatest extent, can the planetary size of appropriate design, make electrical motor with high raising speed specific output, do like this and be conducive to reducing motor volume, save interior space.
Two, combination drive pattern: driving engine 10 starts, first arrangement of clutch C1 is in disengaged condition, second arrangement of clutch C2 is in disengaged condition, driving engine 10 is by gear ring 21 outputting power, power passes to tween drive shaft 51 after pinion carrier 23 is transmitted, drive the second motor 40 to rotate with wheel drive shaft 50, and then drive vehicle.The first motor 30 be now connected with sun wheel 22 as buncher, can be coupled with driving engine 10 rotating speed, makes the operating range in the efficient district of engine fuel wider; The second motor 40 be connected with tween drive shaft 51 can be looked operating mode and start, and is coupled with motor torque, for drive system provides more powerful power.
Three, engine direct drives pattern: after driving engine 10 starts, first arrangement of clutch C1 is in closure state, second arrangement of clutch C2 is in disengaged condition, driving engine 10 is by gear ring 21 outputting power, because gear ring 21 and pinion carrier 23 are connected as a single entity structure, engine power exports to wheel drive shaft with 1:1.Now sun wheel 22 is driven, and first motor 30 rotor that can control to be connected with sun wheel 22 dallies, and namely controls described first motor 30 stator no power by control system; The first motor 30 rotating speed can also be controlled be coupled with driving engine 10 rotating speed, make driving engine 10 be operated in efficient district better.
The working process of hybrid electric drive system described in above-described embodiment is as follows:
First, when vehicle start, low speed (being less than the first preset vehicle speed), first clutch C1 is in disengaged condition, second clutch C2 is in engagement state, start the first motor 30, power to the first motor 30 by closed-center system, drive vehicle start and low speed driving separately by the first motor 30; Certainly, system also can be set using the second motor 40 and drive vehicle launch.Electric-only mode is also applicable to the operating mode such as low speed driving and climbing in the bad situation of road conditions.
When the speed of a motor vehicle is higher than the first preset vehicle speed, engage the first arrangement of clutch C1, open the second arrangement of clutch C2 simultaneously, driving engine 10 is driven to start by the second motor 40, when driving engine 10 reaches certain rotating speed, when can be operated by self oil circuit, open the first arrangement of clutch C1, and regulate the rotating speed of the first motor 30, make the overall speed of a motor vehicle steady.Because the said process time is very short, within general 1 second, so car body can not feel strong vibrations, and by the speed governing of the first motor 30, the speed of a motor vehicle can be made more steady.Driving engine 10 is exported by sun and planet gear 20 reduction of speed, according to the rotating speed of regulating working conditions first motor 30, driving engine 10 is coupled with the first motor 30 rotating speed, first motor 30 can also do electrical generator where necessary and use, consumption of engine 10 excess energy, makes driving engine 20 be operated in fuel efficient district.If desired, the second motor 40 starts, and is powered, be coupled with motor torque by the first motor 30 or closed-center system, for system increases torque.Drive system is operated in combination drive pattern.
When the speed of a motor vehicle needs to improve further, during higher than the second preset vehicle speed, driving engine 10 is exported can not be met duty requirements by sun and planet gear 20 reduction of speed, continue to use mixed mode to be about to make it depart from fuel efficient district, the direct drive pattern of driving engine is entered: closed first arrangement of clutch C1 by making vehicle, and make the second arrangement of clutch C2 keep throwing off, driving engine 10 drives gear ring 21 and pinion carrier 23 synchronous rotary to drive wheel drive shaft 50, namely driving engine is than being 1:1, the output energy of driving engine 10 is all used for driving wheel, now, vehicle enters engine direct and drives pattern, namely advanced by driving engine 10 Direct driver vehicle,
Certainly, above-mentioned various mode of operation can adjust according to actual conditions in good time, also can be used alone.Hybrid electric drive system of the present invention utilizes the output of sun and planet gear 20 pairs of driving engines 10 to carry out reduction of speed, driving engine 10 is made to enter the work of efficient district fast, when driving engine 10 is in the work of efficient district, driving engine 10 Direct driver vehicle advances, do not need through sun and planet gear 20 speed change, noenergy transmission loss, thus improves the work efficiency of driving engine, has saved the energy greatly.
Claims (9)
1. a hybrid power system, comprises
Driving engine (10);
First motor (30), has a rotor, and its rotor has hollow shaft structure;
Second motor (40), has a rotor, and its rotor is connected with wheel drive shaft (50);
Sun and planet gear (20), comprise gear ring (21), sun wheel (22), connect the pinion carrier (23) of multiple satellite gear, wherein said gear ring (21) is connected with the output shaft of described driving engine (10); Described sun wheel (22) is connected with described first motor (30) rotor shaft; Described pinion carrier (23) is connected by a tween drive shaft (51) with described second motor (40) rotor;
Closed-center system, is electrically connected with described first motor (30) and described second motor (40);
It is characterized in that: also comprise
First arrangement of clutch (C1), it is arranged between described gear ring (21) and described pinion carrier (23), for realizing the connection of described gear ring (21) and described pinion carrier (23) or separating; With the second arrangement of clutch (C2), it is arranged between car body fixed parts and described gear ring (21); The pure electric drive mode of described hybrid power system is: driving engine (10) does not start, first arrangement of clutch (C1) is thrown off, the second arrangement of clutch (C2) engages, first motor (30) drives, and the second motor (40) dallies.
2. hybrid power system according to claim 1, it is characterized in that: described gear ring (21) has extension (210), described extension (210) has vertical with described engine output shaft and parallel with described pinion carrier (23) side extended surface, and described first arrangement of clutch (C1) is arranged between the described side of described extended surface and pinion carrier (23).
3. hybrid power system according to claim 1, is characterized in that: described first arrangement of clutch (C1) is lamella clutch.
4. hybrid power system according to claim 1, is characterized in that: described car body fixed parts is for being arranged on the outside housing of described sun and planet gear (20).
5. hybrid power system according to claim 4, is characterized in that: described second arrangement of clutch (C2) is band clutch, comprise setting steel band on the housing and be arranged on gear ring can with the clutch-plate of steel band locking.
6. hybrid power system according to claim 4, is characterized in that: described second arrangement of clutch (C2) is lamella clutch.
7. hybrid power system according to claim 1, it is characterized in that: described driving engine (10), sun and planet gear (20), the first motor (30), the second motor (40) are arranged on same rotation centerline, described tween drive shaft (51), through described first motor (30) rotor hollow shaft, is connected with described second motor (40) rotor.
8. hybrid power system according to claim 1, is characterized in that: described closed-center system is storage battery or super capacitor.
9. according to the arbitrary described hybrid power system of claim 1-8, it is characterized in that: also comprise a control system, described first motor (30), the second motor (40), described first arrangement of clutch (C1), described second arrangement of clutch (C2) are electrically connected with described control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294920.XA CN102774265B (en) | 2012-08-18 | 2012-08-18 | A kind of hybrid electric drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294920.XA CN102774265B (en) | 2012-08-18 | 2012-08-18 | A kind of hybrid electric drive system |
Publications (2)
| Publication Number | Publication Date |
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| CN102774265A CN102774265A (en) | 2012-11-14 |
| CN102774265B true CN102774265B (en) | 2015-09-16 |
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| CN201210294920.XA Expired - Fee Related CN102774265B (en) | 2012-08-18 | 2012-08-18 | A kind of hybrid electric drive system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826001B (en) * | 2012-09-07 | 2015-09-30 | 天津市松正电动汽车技术股份有限公司 | A kind of hybrid-power bus actuating device |
| CN109720189B (en) * | 2017-10-27 | 2023-09-22 | 罗伯特·博世有限公司 | Vehicle hybrid powertrain employing planetary gear mechanism and dual clutch module |
| CN110733330A (en) * | 2018-07-18 | 2020-01-31 | 郑州宇通客车股份有限公司 | hybrid power system and vehicle |
| CN115246313A (en) * | 2022-08-30 | 2022-10-28 | 奇瑞汽车股份有限公司 | Gearbox, hybrid power system and automobile |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2567076Y (en) * | 2001-03-18 | 2003-08-20 | 杨斌彬 | Steel band clutch |
| JP4059877B2 (en) * | 2004-10-14 | 2008-03-12 | トヨタ自動車株式会社 | Hybrid drive device |
| US7416501B2 (en) * | 2005-12-22 | 2008-08-26 | General Motors Corporation | Single range electrically variable transmission with lockup clutch and method of operation |
| CN101513829B (en) * | 2009-02-10 | 2012-07-18 | 华南理工大学 | Series-parallel hybrid power driving device |
| CN101804811B (en) * | 2010-04-29 | 2012-10-03 | 中国汽车技术研究中心 | Hybrid power control system for vehicle |
| KR20120061669A (en) * | 2010-12-03 | 2012-06-13 | 현대자동차주식회사 | Shifting control method of hybrid vehicle |
| CN102102740B (en) * | 2011-03-10 | 2012-05-23 | 北京理工大学 | Electromechanical compound gearing of hybrid vehicle |
| CN203093719U (en) * | 2012-08-18 | 2013-07-31 | 天津市松正电动汽车技术股份有限公司 | Hybrid power driving system |
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Effective date of registration: 20200513 Address after: 301800 Room 102, No. 3, Tianbao Road, Baodi energy conservation and environmental protection industrial zone, Baodi District, Tianjin Patentee after: Tianjin Jixin Auto Parts Manufacturing Co.,Ltd. Address before: 300308 No., West ten, Airport Economic Zone, Dongli District Patentee before: TIANJIN SANTROLL ELECTRIC AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20150916 |