CN103770625B - A kind of hybrid power vehicle double row planetary gear row's formula power coupling mechanism - Google Patents
A kind of hybrid power vehicle double row planetary gear row's formula power coupling mechanism Download PDFInfo
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Abstract
Disclosure one hybrid power vehicle double row planetary gear row's formula power coupling mechanism, including electromotor, planetary gears A, planetary gears B, motor A, motor B, clutch A, clutch B, clutch C, brake A, brake B, gear I, gear II and differential module.Planetary gears A is made up of sun gear A, planet carrier A, gear ring A and planetary gear A.Planetary gears B is made up of sun gear B, planet carrier B, gear ring B and planetary gear B.Electromotor is connected with planet carrier A by clutch A, and planet carrier A is connected with gear ring B by clutch B.The present invention passes through the combination controlling each clutch and brake and unclamps, and makes hybrid vehicle have multiple-working mode, can realize the adjustment of many gears simultaneously, meet the driving cycle requirement of Automobile Complex, improve the work efficiency of system.
Description
Technical field
The invention belongs to automobile energy-saving technology field, be specifically related to a kind of hybrid power vehicle double row planetary gear row's formula power coupling mechanism.
Background technology
Day by day serious along with energy conservation and environmental protection, new-energy automobile increasingly receives the concern of people.Pure electric automobile is subject to the restriction of battery technology, also cannot replace orthodox car completely, and hybrid vehicle is current comparatively suitable selection as a kind of transition.Owing to hybrid vehicle has multiple power source, it is necessary to have additional power coupling mechanism and regulate the rotating speed of each power source and torque, power coupling mechanism choose the vehicle performance being also directly connected to hybrid vehicle.Hybrid vehicle, according to different power coupling mechanisms, mainly has following several ways to realize the coupling output of multi power source: the coupling of torque coupling, rotating speed, pull strength coupling and hybrid coupled.The advantage that wherein hybrid coupled summarizes multiple coupled modes, it is possible to realize multiple-working mode, and the decoupling of engine speed and torque can be realized simultaneously.At present, most widely employed hybrid coupled formula power coupling mechanism is exactly EVT type.The Toyota of Japan and the GM company of the U.S. and the Renault company etc. of France conduct in-depth research in the power coupling mechanism of EVT configuration, also achieve certain achievement.Patent of invention CN1336879A discloses a kind of single planetary row PTO, it is possible to realize series connection and both of which in parallel.US Patent No. 6,478,705B1 discloses a kind of double mode EVT configuration power coupling mechanism, it is possible to makes dynamic coupling system have input shunting and two kinds of forms of output steering, improves the efficiency of legacy system.
Hybrid electric vehicle power coupled system is had higher requirement by the development of modern integrated technology, under meeting the basic function of power coupling and energy back, need power coupling mechanism can realize infinitely variable speeds, and can be operated under more mode of operation, make drive system structure compacter, the impact during switching of reduction pattern, improves the comfortableness of car load, power performance and the economy performance.
Summary of the invention
It is an object of the invention to provide a kind of hybrid power coupling mechanism, by controlling the combination of clutch and brake and unclamping, make hybrid vehicle have multiple type of drive, realize stepless shift function simultaneously, improve hybrid vehicle power performance and the economy performance under different duty requirements.
This invention address that this technical problem be the technical scheme is that this hybrid power vehicle double row planetary gear row formula power coupling mechanism be made up of electromotor, planetary gears A, planetary gears B, motor A, motor B, clutch A, clutch B, clutch C, brake A, brake B, gear I, gear II and differential module.
Planetary gears A includes sun gear A, planet carrier A, gear ring A and planetary gear A；Planetary gears B includes sun gear B, planet carrier B, gear ring B and planetary gear B；The planetary gear A that four structures are identical is evenly distributed on the planet carrier equidistant circumference of A central axis, and empty set is on planet carrier A；The planetary gear B that four structures are identical is evenly distributed on the planet carrier equidistant circumference of B central axis, and empty set is on planet carrier B；The output shaft of electromotor is coaxially connected by clutch A and planet carrier A, realizes engine power to the transmission of power coupling mechanism and interruption by controlling the combination of clutch A with unclamping；Sun gear A and sun gear B is coaxially arranged, but rotary motion independently of one another；Planet carrier A is connected with gear ring B by clutch B, transmits by controlling the combination of clutch B with unclamping the power realizing power rows of planetary gear mechanism A to heel row planetary gears B in the past and interrupts；Gear ring A is connected with sun gear B by clutch C, transmits by controlling the combination of clutch C with unclamping the power realizing power rows of planetary gear mechanism A to heel row planetary gears B in the past and interrupts；Brake A is connected with gear ring A, for gear ring A is braked；Brake B is connected with planet carrier B, it is achieved the braking of planet carrier B and release.
Motor A includes rotor A, motor stator A；Motor B includes rotor B, motor stator B；Motor stator A and motor stator B is fixed on the housing of power coupling mechanism, not movable；Wherein, rotor A and sun gear A is fixedly and coaxially connected, and rotates with sun gear A；Rotor B and sun gear B is fixedly and coaxially connected, and rotates with sun gear B；Gear I and gear ring B are fixedly and coaxially connected, and gear I is meshed with gear II, and its radius is less than the radius of gear II, it is achieved deceleration；Gear II is fixed on the housing of differential module, and the output shaft of differential module transfers power to driving wheel.
When in hybrid vehicle, motor participates in driving, it is possible to individually driven by motor B, or combined driving by motor A and motor B；When carrying out regenerative braking, motor B both can work independently, it is also possible to motor A associated working.
The present invention is by carrying out independent control to each clutch and brake, the input in different dynamic source can be realized, make hybrid vehicle both can be operated in paralleling model, series model or series-parallel connection pattern can also be operated in, carry out the decoupling of engine speed and driving wheel rotating speed or couple, under different driving mode, have different gears respectively, realize stepless shift function simultaneously, make electromotor be operated in high efficiency range according to demand.Such as when electromotor drives, can pass through in conjunction with brake A, brake B, clutch A and clutch B, loosen the clutch C, so that electromotor direct drive of wheel, when in conjunction with clutch A, control the combination of all the other clutches and brake with when unclamping, it is possible to achieve infinitely variable speeds when electromotor individually drives, thus there is advantages that
(1) mode of operation is various, realizes the function of power coupling mechanism stepless speed regulation on the basis that multiple gear regulates, and makes hybrid power conventional system architecture compacter.
(2) motor individually drives, electromotor individually drives or under both combination drive patterns, power coupling mechanism can be made to have different gears by controlling clutch and brake, avoid simple dependence in planetary gears and regulate electromotor working speed by adjustment motor speed, reduce the capacity requirement to motor.
(3) direct high that can realize electromotor drives, and improves the work efficiency of electromotor.
(4) required braking force time according to automobile brake, makes power coupling mechanism be operated in different gears, improves the retardation efficiency of system and reclaims the efficiency of braking energy.
(5) hybrid vehicle is made can to work with series model, paralleling model and series-parallel connection pattern, improve the work efficiency of system, it is capable of electromotor, motor A and the motor B decoupling to driving wheel rotating speed, it is to avoid power source works in high speed mode, improves the life-span of each parts of power assembly.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of hybrid power vehicle double row planetary gear row's formula power coupling mechanism of the present invention；
Fig. 2 is clutch and brake operation state schematic diagram under the part mode of operation of the present invention and corresponding modes；
Fig. 3 is stopping for charging mode power transfer route schematic diagram；
Fig. 4 is electric-only mode I power transmission line schematic diagram；
Fig. 5 is electric-only mode II and III power transmission line schematic diagram；
Fig. 6 is electric-only mode IV power transmission line schematic diagram；
Fig. 7 is engine drive mode I power transmission line schematic diagram；
Fig. 8 is engine drive mode II power transmission line schematic diagram；
Fig. 9 is associating drive pattern I power transmission line schematic diagram；
Figure 10 is associating drive pattern II power transmission line schematic diagram；
Figure 11 is associating drive pattern III power transmission line schematic diagram；
Figure 12 is associating drive pattern IV power transmission line schematic diagram；
Figure 13 is braking mode I power transmission line schematic diagram；
Figure 14 is braking mode II power transmission line schematic diagram；
In figure: 1, electromotor；2, clutch A；3, planet carrier A；4, planetary gear A；5, gear ring A；6, motor stator A；7, rotor A；8, brake B；9, gear ring B；10, planetary gear B；11, sun gear B；12, motor stator B；13, gear I；14, rotor B；15, differential module；16, gear II；17, clutch C；18, planet carrier B；19, brake A；20, clutch B；21, sun gear A；100, planetary gears A；200, planetary gears B；300, motor A；400, motor B.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical scheme is described further.Embodiment described in the invention is a part of embodiment, is illustrating the technical program, and is not to be construed as the whole of the present invention.
As shown in Figure 1, the present invention provides a kind of hybrid power vehicle double row planetary gear row's formula power coupling mechanism, and the output shaft of electromotor 1 is coaxially connected by clutch A2 and planet carrier A3；Planetary gears A100 includes sun gear A21, planet carrier A3, gear ring A5 and planetary gear A4；Planetary gears B200 includes sun gear B11, planet carrier B18, gear ring B9 and planetary gear B10；Wherein, the planetary gear A4 that four structures are identical is evenly distributed on the planet carrier equidistant circumference of A3 central axis, and empty set is on planet carrier A3；The planetary gear B10 that four structures are identical is evenly distributed on the planet carrier equidistant circumference of B18 central axis, and empty set is on planet carrier B18；Sun gear A21 and sun gear B11 is coaxially arranged；Planet carrier A3 is connected with gear ring B9 by clutch B20；Gear ring A5 is connected with sun gear B11 by clutch C17.
Motor A300 includes rotor A7, motor stator A6；Motor B400 includes rotor B14, motor stator B12；Motor stator A6 and motor stator B12 is fixed on the housing of power coupling mechanism；Rotor A7 and sun gear A21 is fixedly and coaxially connected；Rotor B14 and sun gear B11 is fixedly and coaxially connected.Brake A19 is connected with gear ring A5, for gear ring A5 is braked；Brake B8 is connected with planet carrier B18, it is achieved the braking of planet carrier B18 and release.
Gear I 13 is meshed with gear II 16, and the radius of gear I 13 is less than the radius of gear II 16, it is achieved deceleration；Gear I 13 is coaxially connected with gear ring B9；Gear II 16 is fixed on the housing of differential module 15, and the output shaft of differential module 15 transfers power to driving wheel.
When in hybrid vehicle, motor participates in driving, it is possible to individually driven by motor B400, or combined driving by motor A300 and motor B400；When carrying out regenerative braking, motor A300 and motor B400 both can work independently, it is also possible to simultaneously participates in work.By each clutch and brake are carried out independent control, it is possible to achieve the input in different dynamic source, hybrid vehicle is made to be operated in different mode of operations and have different gears.Under part mode of operation that the present invention lists and corresponding modes, clutch and brake operation state are as shown in Figure 2.
Below in conjunction with accompanying drawing, the specific works pattern of the present invention is described:
(1) stopping for charging pattern
When stationary vehicle is motionless, but during accumulator electric-quantity deficiency, it is necessary to by electromotor, battery is charged, clutch A2 and brake A19 combines, and only has motor A300 with generator mode, accumulator is charged, and motor B400 is not involved in work；Clutch B20, clutch C17 and brake B8 all unclamp, and gear ring A5 is fixed, motor A300 rotating speed relation proportional to engine speed, power transmission line such as accompanying drawing 3 during stopping for charging pattern.
(2) electric-only mode
The present invention preferably lists the four kinds of connected modes of power coupling mechanism when hybrid vehicle works with electric-only mode: in modes I, clutch A2, clutch B20, clutch C17 and brake A19 all unclamp, brake B8 combines, now only being driven automobile by motor B400, power transmission line is accompanying drawing 4 such as；In mode II, clutch A2, clutch C17 and brake B8 all unclamp, clutch B20 and brake A19 all combines, now motor A300 and motor B400 combines driving automobile, and driving wheel rotating speed is directly related with motor A300 rotating speed, can stepless speed regulation by regulating the rotating speed of motor A300；In mode III, clutch A2, clutch C17 and brake A19 all unclamp, clutch B20 and brake B8 all combines, now motor A300 and motor B400 combines driving automobile, and driving wheel rotating speed is directly related with motor B400 rotating speed, can stepless speed regulation by regulating the rotating speed of motor B400；When hybrid vehicle is operated in pure electric mode II and mode III, power transmission line is accompanying drawing 5 such as.In pattern IV, clutch A2, brake A19 and brake B8 all unclamp, and clutch B20 and clutch C17 all combines, and motor A300 and motor B400 combines driving automobile, and power transmission line is accompanying drawing 6 such as.When speed is relatively low or during automobile starting, for avoiding electromotor 1 to be operated in inefficient district, now can work with electric-only mode, modes I ~ pattern IV when electromotor 1 works with electric-only mode provides different gears and power input torque, meet power performance when hybrid vehicle starts with driven at low speed, motor itself can realize the function of stepless speed regulation simultaneously, greatly enhances the fuel economy of hybrid vehicle.
(3) engine drive mode
The present invention preferably lists the two kinds of connected modes of power coupling mechanism when hybrid vehicle individually drives with electromotor: in modes I, clutch A2, clutch B20, clutch C17 and brake B8 all combine, brake A19 unclamps, and power transmission line is accompanying drawing 7 such as；In mode II, clutch A2, clutch B20, brake B8 and brake A19 all combine, and clutch C17 unclamps, and power transmission line is accompanying drawing 8 such as.Working mould formula I when electromotor 1 individually drives and mode II, the rotating speed of electromotor 1 couples with the rotating speed of driving wheel, therefore, electromotor 1 should not be operated in speed relatively low time operating mode, when automobile is with higher vehicle speed cruise, if now electromotor 1 is operated in efficient district, it is possible to individually driven by electromotor 1.
(4) associating drive pattern
The present invention preferably lists hybrid vehicle to combine the four kinds of connected modes of power coupling mechanism during drive pattern work: in modes I, clutch A2, brake A19 and brake B8 all combine, clutch B20, clutch C17 all unclamp, now hybrid vehicle works with cascade, electromotor 1 does not couple with driving wheel rotating speed, even if when driving wheel rotating speed is relatively low, electromotor 1 can also be operated in high efficiency range, and power transmission line is accompanying drawing 9 such as；In mode II, clutch A2, clutch B20 and brake B8 all combine, and clutch C17 and brake A19 all unclamps, and are now combined driving by motor A300 and electromotor 1, and power transmission line is accompanying drawing 10 such as；In mode III, clutch A2, clutch B20 and clutch C17 all combine, and brake B8 and brake A19 all unclamps, and are now combined driving by motor B400 and electromotor 1, and power transmission line is accompanying drawing 11 such as；Mode II and mode III are suitable for accelerating mode, motor A300 or motor B400 carry out auxiliary and accelerate；In pattern IV, clutch A2 and clutch B20 all combines, clutch C17, brake A19 and brake B8 all unclamp, now hybrid vehicle is generally operational in full aero mode or most fast mode, being driven by motor A300, motor B400 and electromotor 1 triple combination, power transmission line is accompanying drawing 12 such as.Under associating drive pattern, modes I ~ pattern IV can realize different gear ratios and the input of different power sources, meets the different driving cycles of hybrid vehicle.
On the other hand, hybrid vehicle with the independent drive pattern of electromotor or associating drive pattern under work time, it is possible to achieve driving generating function, power drive motor A300 unnecessary when driving by electromotor 1 or motor B400, make motor work with the form of electromotor, charge a battery.
(5) braking mode
Two kinds of connected modes of power coupling mechanism when the present invention preferably lists hybrid vehicle regenerative braking: in modes I, clutch A2, clutch B20, clutch C17 and brake A19 all unclamp, brake B8 combines, when now power coupling mechanism connected mode works with electric-only mode I with hybrid vehicle, connected mode is identical, but power transmission line changes, power is transferred to motor B400 by driving wheel, only by motor B400 reclaiming braking energy, motor A300 is not involved in work, and power transmission line is accompanying drawing 13 such as；In mode II, clutch A2 and clutch C17 all unclamps, and clutch B20, brake A19 and brake B8 all combine, now motor and 300 and motor B400 be involved in the recovery of braking energy, power transmission line is accompanying drawing 14 such as.
Claims (1)
1. a hybrid power vehicle double row planetary gear row formula power coupling mechanism, including electromotor (1), planetary gears A (100), planetary gears B (200), motor A (300), motor B (400), clutch A (2), clutch B (20), clutch C (17), brake A (19), brake B (8), gear I (13), gear II (16) and differential module (15)；It is characterized in that: the output shaft of described electromotor (1) is coaxially connected by clutch A (2) and planet carrier A (3)；Described planetary gears A (100) includes sun gear A (21), planet carrier A (3), gear ring A (5) and planetary gear A (4)；Described planetary gears B (200) includes sun gear B (11), planet carrier B (18), gear ring B (9) and planetary gear B (10)；Described sun gear A (21) and sun gear B (11) are coaxially arranged；The planetary gear A (4) that four structures are identical is evenly distributed on the equidistant circumference of planet carrier A (3) central axis, and empty set is on planet carrier A (3)；The planetary gear B (10) that four structures are identical is evenly distributed on the equidistant circumference of planet carrier B (18) central axis, and empty set is on planet carrier B (18)；Described planet carrier A (3) is connected by clutch B (20) and gear ring B (9)；Described gear ring A (5) is connected by clutch C (17) and sun gear B (11)；Described motor A (300) includes rotor A (7) and motor stator A (6)；Described motor B (400) includes rotor B (14) and motor stator B (12)；Described motor stator A (6) and motor stator B (12) are fixed on the housing of power coupling mechanism；Described rotor A (7) and sun gear A (21) are fixedly and coaxially connected；Described rotor B (14) and sun gear B (11) are fixedly and coaxially connected；Described brake A (19) is connected with gear ring A (5), and brake B (8) and planet carrier B (18) is connected；Described gear I (13) is meshed with gear II (16), and the radius of gear I (13) is less than the radius of gear II (16), and gear I (13) is coaxially connected with gear ring B (9)；Described gear II (16) is fixed on the housing of differential module (15), and the output shaft of differential module (15) transfers power to driving wheel.
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| CN106915247B (en) * | 2015-12-28 | 2021-05-25 | 长城汽车股份有限公司 | Hybrid power system and vehicle with same |
| CN107458204B (en) * | 2016-06-06 | 2021-09-21 | 比亚迪股份有限公司 | Power transmission system and vehicle with same |
| CN106864245B (en) * | 2017-01-17 | 2018-04-24 | 江苏大学 | The double electric machine double row planetary gear formula power coupling structure and control method of a kind of locking function |
| CN106864246B (en) * | 2017-01-17 | 2018-04-17 | 江苏大学 | A kind of hybrid power vehicle double row planetary gear row's formula power coupling mechanism and control method |
| CN106585361B (en) * | 2017-02-09 | 2020-10-02 | 重庆青山工业有限责任公司 | Power assembly of hybrid electric vehicle |
| CN108128138A (en) * | 2017-12-14 | 2018-06-08 | 广州汽车集团股份有限公司 | A kind of hybrid power coupling mechanism, control system and control method |
| CN107985058A (en) * | 2017-12-14 | 2018-05-04 | 广州汽车集团股份有限公司 | A kind of hybrid power coupling mechanism, control system and method |
| CN107933285B (en) * | 2017-12-20 | 2019-10-18 | 广州汽车集团股份有限公司 | Novel hybrid coupling mechanism and motor vehicles |
| CN108116218B (en) * | 2017-12-29 | 2023-05-30 | 福建省晋江市东石肖下连盛机械配件厂（普通合伙） | Multi-gear series-parallel driving system based on planetary gear train |
| CN108263201B (en) * | 2018-01-19 | 2020-07-31 | 重庆大学 | Double-planet-row power coupling transmission system |
| CN108215766B (en) * | 2018-01-19 | 2020-07-31 | 重庆大学 | Double-planet row type multi-mode hybrid power transmission device |
| CN108340764A (en) * | 2018-02-09 | 2018-07-31 | 重庆大学 | Double planet row-type multimodal fusion power vehicle power assembly |
| CN111038239B (en) * | 2018-10-15 | 2024-04-05 | 宇通客车股份有限公司 | Dual-motor driving system and vehicle |
| CN111196141A (en) * | 2018-11-16 | 2020-05-26 | 广州汽车集团股份有限公司 | Hybrid power coupling mechanism, control system and control method |
| CN111645506B (en) * | 2019-03-04 | 2023-04-07 | 宇通客车股份有限公司 | Hybrid power system and vehicle |
| CN113757322A (en) * | 2020-06-07 | 2021-12-07 | 丹东市振兴区腾翔水力机械厂 | Electromechanical magnetic force hybrid planetary automatic transmission |
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