CN201633523U - hybrid drive system - Google Patents
hybrid drive system Download PDFInfo
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- CN201633523U CN201633523U CN2010201092883U CN201020109288U CN201633523U CN 201633523 U CN201633523 U CN 201633523U CN 2010201092883 U CN2010201092883 U CN 2010201092883U CN 201020109288 U CN201020109288 U CN 201020109288U CN 201633523 U CN201633523 U CN 201633523U
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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
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Abstract
本实用新型提供了一种混合动力驱动系统，包括：发动机、扭转减震器、第一电机、第二电机和传动机构，其中，所述混合动力驱动系统还包括由液压分离轴承控制的第一离合器，所述发动机通过扭转减震器与第一电机的转子相连，所述第一电机的转子通过所述第一离合器与所述传动机构相连，所述第二电机与所述传动机构相连。本实用新型的混合动力驱动系统在发动机和第一电机之间设置扭转减震器，该扭转减震器的设置不但可以起到减震作用，而且还可以有效降低噪音，有利于提高驾驶的舒适性。同时，本实用新型的第一离合器为由液压分离轴承控制的离合器，因此可以降低离合器液压油路的设计难度，有利于提高第一离合器的控制精度。
The utility model provides a hybrid drive system, which includes: an engine, a torsional shock absorber, a first motor, a second motor and a transmission mechanism, wherein the hybrid drive system also includes a first motor controlled by a hydraulic separation bearing. A clutch, the engine is connected to the rotor of the first motor through a torsional shock absorber, the rotor of the first motor is connected to the transmission mechanism through the first clutch, and the second motor is connected to the transmission mechanism. The hybrid drive system of the utility model is provided with a torsional shock absorber between the engine and the first motor. The setting of the torsional shock absorber can not only play a shock absorbing role, but also effectively reduce noise, which is beneficial to improving driving comfort. sex. At the same time, the first clutch of the utility model is a clutch controlled by a hydraulic release bearing, so the design difficulty of the hydraulic oil circuit of the clutch can be reduced, and the control accuracy of the first clutch can be improved.
Description
Technical field
The utility model relates to a kind of hybrid electric drive system.
Background technology
The mankind of the world today are faced with energy shortage and ecological deterioration two is challenged greatly, and orthodox car is subjected to the serious puzzlement of oil crises day by day, and energy-conserving and environment-protective become the development topic of auto trade gradually.Given this, the appealing of releasing pure electric automobile grows to even greater heights, but is subjected to all multifactor restrictions such as technology, policy, and current pure electric automobile also can't be realized volume production, introducing to the market comprehensively.
Hybrid vehicle was undoubtedly before pure electric automobile is realized industrialization, the most one of Xian Shi technology owing to its outstanding representation aspect energy-conservation and environmental protection.
A kind of hybrid electric drive system is disclosed in the prior art, this drive system comprises: driving engine, power-transfer clutch, first motor with first stator and the first rotor, second motor and transmission device, wherein, driving engine is captiveed joint with the first rotor of first motor, the first rotor is connected with transmission device by power-transfer clutch, and second motor is connected with transmission device.Be set with flywheel on the output shaft of driving engine, this flywheel is connected with the first rotor of described first motor by barrel-contoured lid.Clutch pack including control mechanism, travel mechanism, spring diaphragm and friction disc, wherein, one end of lid has the flange that extends vertically in this lid, spring diaphragm is positioned at lid and is connected rotationally with this flange, friction disc is connected between spring diaphragm and flywheel and with transmission device in lid, travel mechanism makes spring diaphragm center on the flange swing under the control of control mechanism, so that friction disc engages with flywheel or separates.Also be provided with first torsion vibration absorber between friction disc in this power-transfer clutch and the transmission device, the junction between lid and the first rotor also is provided with second torsion vibration absorber.Being provided with of these torsion vibration absorbers can be played cushioning effect to the vibration of driving engine, but also increased noise simultaneously, reduced the traveling comfort of driving; When first motor provides power simultaneously, thereby its power need increase degradation of energy through two torsion vibration absorbers, and this loss is unnecessary.
The utility model content
The utility model provides a kind of noise lower hybrid electric drive system for solving the bigger technical matters of noise in the existing hybrid electric drive system.
Hybrid electric drive system of the present utility model, comprise: driving engine, torsion vibration absorber, first motor, second motor and transmission device, wherein, described hybrid electric drive system also comprises the first clutch by the control of hydraulic pressure release thrust bearing, described driving engine links to each other by the rotor of torsion vibration absorber with first motor, the rotor of described first motor links to each other with described transmission device by described first clutch, and described second motor links to each other with described transmission device.
The rotor of described first motor has hollow structure, and described first clutch has at least a part to be arranged in described hollow structure.
Described first clutch comprises first friction member and second friction member that can cooperate transmission, and described first friction member is captiveed joint with the rotor of described first motor, and described second friction member is captiveed joint with described transmission device.
Described hydraulic pressure release thrust bearing comprises: hydraulic actuating cylinder and being used for makes described first friction member and the contact of second friction member or separates under the driving of described hydraulic actuating cylinder release thrust bearing.
Described hydraulic actuating cylinder comprises cylinder body, be plugged in and form the cylinder core of an end osed top annulus in the described cylinder body and with described cylinder body and be arranged in this annulus and can axially movable described piston, the outer wall sealing contact of the inwall of described piston and described cylinder body and described cylinder core, the inner ring of described release thrust bearing is captiveed joint with the piston of described hydraulic actuating cylinder, described cylinder body is provided with the passage that is communicated with described annulus, and this passage is connected with hydraulic oil pipe.
Described cylinder core has hollow structure, and the output shaft of described first motor passes described cylinder core and links to each other with described transmission device.
Described transmission device comprises gear shift unit and the deceleration unit that cooperates transmission, and the rotor of described first motor links to each other with described gear shift unit by described first clutch, and described second motor links to each other with described gear shift unit.
Described gear shift unit comprises planet circular system, second clutch and drg, the output shaft of described second motor links to each other with the sun wheel of planet circular system on a position of its axial direction, and the output shaft of described second motor also links to each other with the pinion carrier of planet circular system by second clutch on another position of its axial direction, also be provided with described drg on the described pinion carrier, the gear ring of described planet circular system and the engagement of the input gear of described deceleration unit, the output shaft of described first motor links to each other with the output shaft of described second motor.
Described planet circular system is single twin-stage planet circular system.
Described second clutch is the power-transfer clutch by the control of hydraulic pressure release thrust bearing.
Hybrid electric drive system of the present utility model is provided with torsion vibration absorber between the driving engine and first motor, the setting of this torsion vibration absorber not only can be played cushioning effect, but also can effectively reduce noise, helps improving the traveling comfort of driving.Simultaneously, first clutch of the present utility model is the power-transfer clutch by the control of hydraulic pressure release thrust bearing, therefore can reduce the design difficulty of clutch hydraulic pressure oil circuit, helps improving the control accuracy of first clutch.
Description of drawings
Fig. 1 is the scheme drawing of a kind of embodiment of the hybrid electric drive system that provides of the utility model;
Fig. 2 is the structural representation of a kind of embodiment of the hydraulic pressure release thrust bearing among Fig. 1.
The specific embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
According to a kind of embodiment of the present utility model, as shown in Figure 1, hybrid electric drive system, comprise: driving engine 1, torsion vibration absorber 5, first motor 2, second motor 3 and transmission device 7, wherein, this hybrid electric drive system also comprises the first clutch 4 by 6 controls of hydraulic pressure release thrust bearing, and driving engine 1 links to each other with the rotor 21 of first motor 2 by torsion vibration absorber 5, the rotor 21 of first motor links to each other with transmission device 7 by first clutch 4, and second motor 3 links to each other with transmission device 7.
Specifically, be at first clutch 4 under the situation of engagement state, when driving engine 1 work, the power of driving engine 1 can be delivered to transmission device 7 by first clutch 4.Because driving engine 1 links to each other with the rotor 21 of first motor 2, therefore when driving engine 1 is worked, no matter whether first clutch 4 engages, the rotor 21 of first motor 2 all will be under the drive of driving engine 1 and turn round, and when 2 work of first motor, equally also will drive driving engine 1 running.
Owing to have said structure, thereby first motor 2 can be as the starter motor of driving engine 1, thereby need not for driving engine 1 extra starter motor to be set, first motor 2 can also be to transmission device 7 outputting powers simultaneously, thereby, satisfying under the situation of power demand, saved the part installing space.In addition, when needs vehicle reverse gear, 3 counter-rotatings of second motor can be realized, thereby need not to be provided with extra gear reversing device, thereby further saved the installing space that gear reversing device is installed, made hybrid electric drive system provided by the utility model have comparatively compact integral structure.
The rotor 21 of first motor 2 is a hollow structure, at least a portion of first clutch 4 is arranged in this hollow structure, preferably, first clutch 4 all is arranged in this hollow structure, the inwall of the rotor 21 of first motor 2 links to each other with first clutch 4, first clutch 4 also links to each other with transmission device 7, and promptly the power of rotor 21 outputs of first motor 2 directly is transported to transmission device 7 by first clutch 4, finally is delivered to wheel.First clutch 4 is installed in this hollow structure can be effectively saved axial installing space, and therefore the power of first motor 2 can not exist degradation of energy without torsion vibration absorber 5.
According to a kind of embodiment of the present utility model, the output shaft (rotor shaft) of the output shaft of the output shaft of driving engine 1, first motor 2 (rotor shaft) and second motor 3 is on the same axis, thereby can simplify the mounting structure of drive system, help conserve space.
Hybrid electric drive system of the present utility model also comprises the closed-center system (not shown), and this closed-center system is electrically connected with first motor 2 and second motor 3 respectively.This closed-center system is used for electrical power storage that first motor 2 and second motor 3 are produced as electrical generator the time, so that in needs, again to first motor 2 and/or 3 power supplies of second motor.This closed-center system is the electric energy unit that can repeatedly discharge and recharge, as lithium rechargeable battery etc.
Torsion vibration absorber 5 can select for use various suitable manner to realize, torsion vibration absorber 5 mainly is made up of elastic element (damper spring or rubber) and damping element (damping fin) etc.Thereby those skilled in the art can design the various parameters of damper spring and damping fin as required constitutes required torsion vibration absorber.
First friction member and second friction member all can be multi-disc friction sheet or friction disc, those skilled in the art can make choose reasonable as required, as first friction member and second friction member adopt with liquid clutch in friction element similarly be connected arrangement form.
First friction member or second friction member can contact with release thrust bearing 61 or separate, promptly first friction member contacts transferring power or disconnects and cut off power with second friction member under the effect of release thrust bearing 61, and perhaps second friction member contact transferring power or disconnects cut-out power with first friction member under the effect of release thrust bearing 61.
Further, cylinder core 67 has hollow structure, and the output shaft of first motor 2 passes cylinder core 67 and links to each other with transmission device 7, has the gap between the output shaft of first motor 2 and the cylinder core, i.e. the running of first motor can not be subjected to the influence of cylinder core 67.
If first clutch 4 adopts traditional power-transfer clutch such as liquid clutch, then need on the adapter shaft between the rotor of box body wall, torsion vibration absorber 5 and first motor 2 of change speed gear box, offer oil duct, thus adopt traditional power-transfer clutch can make the oil duct design, make more complicated.And the first clutch 4 by 6 controls of hydraulic pressure release thrust bearing that adopts the utility model to provide then can reduce the difficulty that manufactures and designs of power-transfer clutch oil duct, helps cost-cutting.Simultaneously, hydraulic actuating cylinder can be fixed on the change speed gear box, thereby can not be subjected to the influence of first motor, 2 output shafts, helps mentioning the control accuracy of first clutch 4.
Piston 62 and the inwall of cylinder body 64 and the outer wall sealing contact of cylinder core 67, this can realize by variety of way well known in the art, for example by on the piston 62 and between the outer wall of the inwall of cylinder body 64 and cylinder core 67 seal ring being installed.Under the preferable case, be embedded with y-shaped ring 68 on the aft end face of piston 62, so that piston 62 and the inwall of cylinder body 64 and the outer wall sealing contact of cylinder core 67.Because y-shaped ring 68 sealings are reliable and high pressure resistant, therefore such sealing means is simple in structure and reliable, has simplified processing, mounting process.More particularly, y-shaped ring 68 comprises a cardinal extremity and two Zhi Duan, on the aft end face of the piston 62 that cardinal extremity can be fixed in the formed dovetail furrow, two ends respectively with the inwall of cylinder body 64 and the outer wall sealing contact of cylinder core 6.
Passage 65 is used for the hydraulic oil of hydraulic oil pipe 66 is introduced or discharged in the annulus, with moving of actuating plunger 62.Passage 65 can be formed on any part of cylinder body 64, and under the preferable case, the rear end that passage 65 is formed at cylinder body 64 is promptly away from an end of release thrust bearing 61.Can make the structure of whole device compact like this, reduce its radial dimension.Thereby be more suitable in the space of less for example strip in space or tubulose, installing and using.
Further, hydraulic pressure release thrust bearing 6 also comprises cylinder seat 70, and an end of this cylinder seat 70 and cylinder body 64 and cylinder core 67 are tightly connected.The sealing mode can realize by variety of way well known in the art, as between cylinder body 64 and cylinder seat 70, forming concaveconvex structure, one end of cylinder core 67 have flange and be inserted into cylinder body 64 and cylinder seat 70 between, and cylinder body 64 and cylinder seat 70 are fixed together by screw 69.
Known ground, hybrid vehicle is provided with control setup, and as vehicle-mounted ECU, each mechanism operates under the various mode of operations on car load and the automobile thereby can control.
When needs control first clutch 4, control setup modulated pressure propulsion source such as electric oil pump work, thus hydraulic oil is input in the annulus 63 by hydraulic oil pipe 66, and then promotion piston 62 moves, under the effect of piston 62, release thrust bearing 61 drives first clutch 4 closures; When needs disconnect first clutch 4, control setup modulated pressure source such as electric oil pump quit work, hydraulic pressure release thrust bearing 6 the oil return loop on electromagnetic valve connect, hydraulic oil in the annulus 63 flows back in hydraulic power source such as the change speed gear box by hydraulic oil pipe 66, at this moment, release thrust bearing 61 and piston 62 be return gradually, and first clutch 4 disconnects.
According to a kind of embodiment of the present utility model, transmission device 7 can comprise that the rotor 21 of the gear shift unit 14 that cooperates transmission and deceleration unit 15, the first motors links to each other with gear shift unit 14 by first clutch 4, and second motor 3 links to each other with gear shift unit 14.Power is by can further being transported to wheel by diff after gear shift unit 14 and the deceleration unit 15.
Further, gear shift unit 14 comprises planet circular system, second clutch 8 and drg 16, the output shaft of second motor 3 links to each other with the sun wheel 10 of planet circular system on a position of its axial direction, and the output shaft of second motor 3 also links to each other with the pinion carrier 11 of planet circular system by second clutch 8 on another position of its axial direction, also be provided with drg 16 on the pinion carrier 11, the gear ring 9 of planet circular system and 12 engagements of the input gear of deceleration unit 15, the output shaft of first motor 2 links to each other with the output shaft of second motor 3.
Known ground, planet circular system comprises gear ring 9, the pinion carrier 11 and the sun wheel 10 of a plurality of satellite gears is installed, and its matching relationship is known as satellite gear and is engaged between sun wheel 10 and the gear ring 9.This planet circular system is generally single planet circular system.According to planetary group of number difference between sun wheel and the gear ring, planet circular system is divided into single-planetary gear train and twin-stage planet circular system.Single-planetary gear train has only one group of planetary wheel between sun wheel and gear ring, each planetary wheel both meshed with sun wheel, also meshed with gear ring; The twin-stage planet circular system has two groups of intermeshing planetary wheels between sun wheel and gear ring, wherein one group of planetary wheel of outside and gear ring engagement, and the one group of planetary wheel and the sun wheel of the inside mesh.
Characteristics according to single-planetary gear train and twin-stage planet circular system, the input torque of supposing sun wheel is Ts, the described moment of torsion of braking pinion carrier is Th, the output torque of gear ring is Ts, transmitting ratio between sun wheel and the gear ring is the gear ring number of teeth and the ratio of the number of teeth of sun wheel is K, then for single-planetary gear train, Th=(K+1) Ts; For the twin-stage planet circular system, Th=(K-1) Ts.When the input torque of sun wheel equates, and sun wheel is when transmitting ratio between the gear ring also equates, the required brake torque of twin-stage planet circular system is significantly less than the required brake torque of single-planetary gear train.So preferably, the above line star wheel series is chosen as single twin-stage planet circular system.
On the different axial locations of second motor, 3 output shafts, the output shaft of this second motor 3 connects the sun wheel 10 and the pinion carrier 11 of planet circular system respectively, wherein, with can adopt being connected of sun wheel 10 such as the connection of key alligator groove, spline connection etc., connects indirectly with being connected by second clutch 8 of pinion carrier 11, thereby can pass through the joint of second clutch 8 or separation and optionally be connected or disconnect with pinion carrier 11.Second clutch 8 can adopt the power-transfer clutch of multiple concrete structure, and preferably, second clutch 8 adopts the power-transfer clutch by the control of hydraulic pressure release thrust bearing, and promptly second clutch 8 can adopt the power-transfer clutch identical with first clutch 4.
Also be provided with drg 16 on the pinion carrier 11, this drg 16 is similar to the structure of the car brake of using always to principle, can be on the partial-length of the outer peripheral face of gear ring 9, brake shoe brake cheek or slipper to be set, and handle this brake shoe brake cheek or slipper by fluid pressure type brake operating mechanism (not shown), selectively engaging or to separate, thereby make that gear ring 9 is fixing or can freely rotate with the outer peripheral face of gear ring 9.
It is how right that speed reducing gear pair in the deceleration unit 15 can be installed as according to actual needs, and it mainly is that engagement by multistage big or small gear pair realizes slowing down, and the input gear of deceleration unit 15 is connected on the gear ring 9, forms a stage gear ratio i2; The output gear of deceleration unit 15 is connected on the housing of diff, forms two stage gear ratio i3, this diff and then be connected on the drive wheels 13 by semiaxis.The transmitting ratio that is whole deceleration unit is i=i2i3.
The principle that realizes two shelves levels of automobile D Drive by the arrangement structure among Fig. 1 below will be described.The planet circular system of the following stated all refers to the single twin-stage planet circular system among Fig. 1.
In Fig. 1, when brake activation device 16 engages so that pinion carrier 11 is fixing and when keeping second clutch 8 to be in released state, the transmitting ratio i1=K of planet circular system, because being definite value i, the transmitting ratio of deceleration unit 15 (is two reduction gear among Fig. 1, certainly this speed reduction gearing can also be first class reducer structure or multi-stage speed-reducing mechanism), therefore the transmitting ratio of whole hybrid electric drive system is I=i1i=Ki=Ki2i3 under this serviceability, this is the transmitting ratio of first D Drive of hybrid electric drive system among Fig. 1, this integral body transmitting ratio is bigger, and this is specially adapted to low speed climbing etc. needs significantly rev down to increase the operating mode of moment of torsion.
In addition, in Fig. 1, when keeping drg 16 to be in released state when making second clutch 8 engage, because pinion carrier 11 is connected as a whole by the output shaft of second motor 3 with sun wheel 10, realize through-coupling this moment, the transmitting ratio i1=1 of planet circular system, therefore the transmitting ratio of whole hybrid electric drive system is I=i1i=i=i2i3 under this serviceability, this is the transmitting ratio of second D Drive of hybrid electric drive system among Fig. 1, this transmitting ratio less (the transmitting ratio i that only depends on deceleration unit 15), this operating mode such as be specially adapted to run at high speed.
By last analysis as can be known, above-mentioned hybrid electric drive system by the utility model preferred implementation, owing to can participate in slowing down by adjusting planet circular system, and form two shelves levels of automobile D Drive thus, therefore can reduce the transmitting ratio of deceleration unit 15, to coordinate the needs that travel under the different operating modes of automobile.For example, when the fully loaded climbing of automobile, adopt the transmitting ratio of first D Drive, thereby make the output speed of second motor 3 (or under the series-parallel connection pattern driving engine 1, first motor 2 and second motor 3) significantly reduce, increase the purpose of turning round thereby reach to slow down via the common deceleration of planet circular system and deceleration unit 15; When automobile when flat road surface is travelled, can adopt the transmitting ratio of second D Drive, (or under the series-parallel connection pattern driving engine 1, first motor 2 and second motor 3) rotating speed is only slowed down by deceleration unit 15, thereby makes automobile still can travel with desirable speed after deceleration so that second motor 3.Simultaneously, owing to reduced the transmitting ratio of deceleration unit 15, therefore can reduce the gear quantity and the size of deceleration unit 15, thereby reduce cost.
Illustrate that below in conjunction with Fig. 1 automobile hybrid power drive system of the present utility model is in gear position operation method under different operating modes and the dynamic mode at automobile, specifically sees table 1:
Table 1:
Annotate: zero for separating, ● be to engage,---all can for separating with engaging
As mentioned above, automobile hybrid power drive system of the present utility model drives based on second motor 3, but by the control of control setup and power-transfer clutch, can be with two kinds of mode of operations: electric-only mode (EV) and hybrid mode (HEV) work (seeing for details following).
The firstth, park, this moment, driving engine 1, first motor 2 and second motor 3 of automobile all shut down, and first clutch 4, second clutch 8 and drg 16 remain on joint or released state can not exert an influence to automobile.
The secondth, reverse, this moment, first clutch 4 was in released state, automobile is driven by second motor 3, certain first clutch 4 is in released state and does not represent the driving engine 1 and first motor 2 not to work, can generate electricity with generator mode by start the engine 1 driving first motor 2 this moment as required, and by the switching of above-mentioned control setup the electric power that produces is stored in the automobile energy storage device (when following first clutch 4 is in released state, the driving engine 1 and first motor 2 all can be selected this kind mode of operation, especially the closed-center system power shortage and more need adopt this kind mode of operation when need adopting the hybrid power series model).In reverse, second motor 3 reverses under the control of control setup, and make second clutch 8 separate, drg 16 engages, and as mentioned above, the transmitting ratio of the hybrid electric drive system among Fig. 1 is respectively Ki at this moment, this transmitting ratio is bigger, and add the speed change of second motor 3 itself, thus automobile can move backward with speed slowly, guaranteed safety.
The 3rd is neutral gear, just (second motor 3 does not shut down temporary transient Parking state in the process of moving, but automobile does not advance, stop as passenger vehicle) midway, this moment first clutch 4, second clutch 8 and drg 16 remain on released state, because the sun wheel 10 of planet circular system, pinion carrier 11 and gear ring 9 are all unfixing, and there are not two members to fuse yet, known ground, planet circular system this moment carry-over moment not, promptly the output speed of planet circular system is zero, thereby even this moment second motor 3 be in operative condition, can not drive automobile yet and advance, thereby realize the neutral gear running.
The 4th is the D Drive under the electric-only mode, when the closed-center system electric weight is sufficient, if automobile is at a high speed or the low speed driving operating mode, mixed power automobile driving system of the present utility model mainly adopts electric-only mode (EV), by control setup control that second motor 3 is just changeing and with second motor 3 as only propulsion source.Forward gear under the electric-only mode has two shelves levels, and is specific as follows:
First forward gear of electric-only mode: this moment, first clutch 4 all separated with second clutch 8, operational brake 16 is in the engage brake state, as mentioned above, the transmitting ratio of the hybrid electric drive system among Fig. 1 is Ki at this moment, this transmitting ratio is bigger, thereby can be so that automobile remains on relatively low at the uniform velocity motoring condition.Certainly under electric-only mode, automobile can also be realized acceleration mode slowly by increasing the 3 power outputs of second motor own.
Second forward gear of electric-only mode: first clutch 4 separation this moment, second clutch 8 engages, 16 of drgs are in released state, as mentioned above, the planet circular system of the hybrid electric drive system among Fig. 1 is in the through-coupling state at this moment, the transmitting ratio of whole hybrid electric drive system is the transmitting ratio i of deceleration unit 15, so automobile can remain on higher relatively at the uniform velocity motoring condition.
The 5th is the D Drive under the hybrid power series model, the series model of hybrid power mainly is to drive 2 generatings of first motor by driving engine 1, and be re-supplied to second motor 3 after the electric power that first motor 2 produces directly supplied with second motor 3 or be stored into closed-center system, so that driving automobile as the direct driving force source, second motor 3 advances.This hybrid power series model mainly is applicable to closed-center system electric weight deficiency, and needs to keep the operating mode of uniform high speed of automobile or low speed driving.D Drive under this hybrid power series model is similar to the D Drive under the electric-only mode, different only be to make driving engine 1 drive 2 generatings of first motor, and the electric power that produces supplied to second motor 3, therefore, as shown in table 1, the control of first D Drive under this hybrid power series model and the power-transfer clutch of second D Drive and drg can be referring to first D Drive under the above-mentioned electric-only mode and second D Drive.
The 6th is the D Drive under the hybrid power series-parallel connection pattern.The series-parallel connection pattern of hybrid power system mainly is applicable to the situation of automobile climbing or brish acceleration, and this moment, automobile needed bigger power output, therefore made first clutch 4 engage, and was second motor, 3 power-assisteds by the driving engine 1 and/or first motor 2.Under this series-parallel connection pattern, exist multiple power transmission line to adapt to the different needs that travel.For example, make driving engine 1 turn round, and first motor 2 by the control of described control setup with the pattern work of electrical generator, this moment, driving engine 1 a power part converted electrical power storage in closed-center system via first motor 2, the power junction of the output shaft of another part by first motor 2 and the output shaft of second motor 3, and then output to deceleration unit 15 by the coupling of planet circular system, it should be noted that, in this case, the problem that has the synchronization coupling of the driving engine 1 and second motor 3, it is general because rotating speed of motor is higher than combustion engine, therefore mainly control the rotating speed of second motor 3 so that the rotating speed of itself and driving engine 1 is roughly suitable by described control setup, certainly because the rotating speed of driving engine 1 has slight fluctuation, but because first clutch mostly 4 is the power-transfer clutch that adopts tribology principle, and because the existence of torsion vibration absorber 5, so slightly not matching of the rotating speed of the driving engine 1 and second motor 3 can't influence the ride comfort of running car (following rotating speed matching principle is identical); For another example, make driving engine 1 turn round, make the motor 2 of winning also with the pattern work of electrical motor by described control setup simultaneously, and by described control setup from closed-center system with electric power by supplying to first motor 2 and second motor 3, this moment, the driving engine 1 and first motor 2 were second motor, 3 power-assisteds jointly, and this mainly is applicable to the situation of limit climbing; And for example, when the closed-center system electric weight exhausts, can be so that driving engine 1 running, and only drive automobile and advance by driving engine 1, this moment, this driving engine 1 can drive first motor 1 (is to drive second motor 3 simultaneously at needs) generating with to the closed-center system charging etc.This shows, the route of transmission of power is more under hybrid power series-parallel connection pattern, this finds application in the applicant's multiple vehicle, a bigger advantage of this series-parallel connection pattern is to make driving engine 1 remain at the maximal efficiency district, makes the outputting power of driving engine 1 fully obtain utilizing.This moment, the D Drive under this hybrid power series-parallel connection pattern is divided into two-stage equally, and was specific as follows regardless of the route of transmission of power:
First D Drive of hybrid power series-parallel connection pattern: first clutch 4 engages, second clutch 8 separates, drg 16 is in the engage brake state, as mentioned above, the transmitting ratio of the hybrid electric drive system among Fig. 1 is Ki at this moment, this transmitting ratio is bigger, thereby can increase the moment of torsion purpose so that the rotating speed of driving engine 1, second motor 3 (and/or first motor 2) reduces effectively to reach, because mixed power output is bigger, therefore the moment of torsion that increases can guarantee that automobile realization climbing waits driving cycle.
Second forward gear of hybrid power series-parallel connection pattern: first clutch 4 engages, second clutch 8 engages, 16 of drgs are in released state, as mentioned above, the planet circular system of the hybrid electric drive system among Fig. 1 is in the through-coupling state at this moment, the transmitting ratio that the transmitting ratio of whole hybrid electric drive system is deceleration unit 15 is i, this moment, automobile can be realized brish acceleration by powerful power output, and can remain on the highest at the uniform velocity motoring condition by above-mentioned electric-only mode subsequently.
In addition, even under the parking of automobile state (second motor 3 shuts down), still can be by making first clutch 4 separate, and start the engine 1 drives 1 generating of first motor separately, is the closed-center system charging.Under this stops generating gear because first clutch 4 separates, second clutch 8 and drg 16 be in separates or engagement state all unimportant, driving engine 1 can't be with transmission of power to planet circular system.
By last analysis as can be seen, the utility model automobile hybrid power drive system is according to the different driving cycles of automobile, select various mode of operations and respective notch flexibly, drive based on second motor 3, and driving engine 1 almost is operated in its maximal efficiency district always under hybrid power series-parallel connection pattern, avoid driving engine 1 to be in idling and low-speed running operating mode, thereby improved fuel utilization ratio; Secondly, first motor 2 still can be used as the starter motor of conventional engines 1, and therefore first motor 2 is actual has a triple functions: starter motor, electrical generator and be second motor, 3 power-assisted electrical motors.In addition, automobile hybrid power drive system with adjustable two D Drive levels can make that the effective deceleration of car load is faster with increase moment of torsion, starting, and under high speed, can give play to the peak efficiency of motor and driving engine biglyyer, improve energy conversion efficiency, reduce exhaust emissions and reduce waste of power, finally reach effects such as the anti-emission carburetor of car load, low oil consumption and kinetic energy.
Hybrid electric drive system of the present utility model is provided with torsion vibration absorber 5 between the driving engine and first motor, the setting of this torsion vibration absorber 5 not only can be played cushioning effect, but also can effectively reduce noise, helps improving the traveling comfort of driving.
Planet circular system of the present utility model adopts single twin-stage planet circular system, when the braking pinion carrier, can effectively reduce required brake torque, help reducing the size of drg 16, thereby can save the installing space of drg 16, help reasonable Arrangement drg 16.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. hybrid electric drive system, comprise: driving engine, torsion vibration absorber, first motor, second motor and transmission device, it is characterized in that, described hybrid electric drive system also comprises the first clutch by the control of hydraulic pressure release thrust bearing, described driving engine links to each other by the rotor of torsion vibration absorber with first motor, the rotor of described first motor links to each other with described transmission device by described first clutch, and described second motor links to each other with described transmission device.
2. hybrid electric drive system as claimed in claim 1 is characterized in that the rotor of described first motor has hollow structure, and described first clutch has at least a part to be arranged in described hollow structure.
3. hybrid electric drive system as claimed in claim 1, it is characterized in that, described first clutch comprises first friction member and second friction member that can cooperate transmission, described first friction member is captiveed joint with the rotor of described first motor, and described second friction member is captiveed joint with described transmission device.
4. hybrid electric drive system as claimed in claim 3 is characterized in that, described hydraulic pressure release thrust bearing comprises: hydraulic actuating cylinder and being used for makes described first friction member and the contact of second friction member or separates under the driving of described hydraulic actuating cylinder release thrust bearing.
5. hybrid electric drive system as claimed in claim 4, it is characterized in that, described hydraulic actuating cylinder comprises cylinder body, be plugged in and form the cylinder core of an end osed top annulus in the described cylinder body and with described cylinder body and be arranged in this annulus and can axially movable described piston, the outer wall sealing contact of the inwall of described piston and described cylinder body and described cylinder core, the inner ring of described release thrust bearing is captiveed joint with the piston of described hydraulic actuating cylinder, described cylinder body is provided with the passage that is communicated with described annulus, and this passage is connected with hydraulic oil pipe.
6. hybrid electric drive system as claimed in claim 5 is characterized in that, described cylinder core has hollow structure, and the output shaft of described first motor passes described cylinder core and links to each other with described transmission device.
7. hybrid electric drive system as claimed in claim 1, it is characterized in that, described transmission device comprises gear shift unit and the deceleration unit that cooperates transmission, and the rotor of described first motor links to each other with described gear shift unit by described first clutch, and described second motor links to each other with described gear shift unit.
8. hybrid electric drive system as claimed in claim 7, it is characterized in that, described gear shift unit comprises planet circular system, second clutch and drg, the output shaft of described second motor links to each other with the sun wheel of planet circular system on a position of its axial direction, and the output shaft of described second motor also links to each other with the pinion carrier of planet circular system by second clutch on another position of its axial direction, also be provided with described drg on the described pinion carrier, the gear ring of described planet circular system and the engagement of the input gear of described deceleration unit, the output shaft of described first motor links to each other with the output shaft of described second motor.
9. hybrid electric drive system as claimed in claim 8 is characterized in that, described planet circular system is single twin-stage planet circular system.
10. hybrid electric drive system as claimed in claim 8 is characterized in that, described second clutch is the power-transfer clutch by the control of hydraulic pressure release thrust bearing.
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| CN2010201092883U CN201633523U (en) | 2010-01-29 | 2010-01-29 | hybrid drive system |
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| CN2010201092883U CN201633523U (en) | 2010-01-29 | 2010-01-29 | hybrid drive system |
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| CN201633523U true CN201633523U (en) | 2010-11-17 |
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| CN102275496A (en) * | 2011-05-26 | 2011-12-14 | 浙江吉利汽车研究院有限公司 | Series-parallel connection hybrid power driving system |
| CN102887056A (en) * | 2011-07-20 | 2013-01-23 | 上海华普汽车有限公司 | Dual-mode hybrid power transmission device and hybrid power transmission system |
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| CN103647367A (en) * | 2013-12-17 | 2014-03-19 | 湖南南车时代电动汽车股份有限公司 | Driving motor and series-parallel hybrid power system |
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| CN107215195A (en) * | 2017-06-06 | 2017-09-29 | 华南农业大学 | A kind of integrated bi-motor and single planetary gear hybrid power system and control method |
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| CN102887056A (en) * | 2011-07-20 | 2013-01-23 | 上海华普汽车有限公司 | Dual-mode hybrid power transmission device and hybrid power transmission system |
| CN102887056B (en) * | 2011-07-20 | 2015-09-09 | 科力远混合动力技术有限公司 | Bimodulus hybrid transmissions and hybrid power transmission system |
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| WO2014023070A1 (en) * | 2012-08-07 | 2014-02-13 | 福建省福工动力技术股份公司 | Hybrid car braking energy recovery device and method based on motor controllable speed-raising |
| CN104105629A (en) * | 2013-02-06 | 2014-10-15 | 丰田自动车株式会社 | Controls for hybrid vehicles |
| CN103647367A (en) * | 2013-12-17 | 2014-03-19 | 湖南南车时代电动汽车股份有限公司 | Driving motor and series-parallel hybrid power system |
| CN103647367B (en) * | 2013-12-17 | 2016-03-09 | 湖南南车时代电动汽车股份有限公司 | Drive motors and series-parallel hybrid electric system |
| CN108349367A (en) * | 2015-10-27 | 2018-07-31 | 密执安州立大学董事会 | Hybrid power all-wheel-drive system with dynamic clutch |
| US10940750B2 (en) | 2015-10-27 | 2021-03-09 | The Regents Of The University Of Michigan | Hybrid all-wheel drive system having dynamic clutches |
| CN108349367B (en) * | 2015-10-27 | 2021-04-27 | 密歇根大学董事会 | Hybrid all-wheel drive system with dynamic clutch |
| CN107160994A (en) * | 2016-03-07 | 2017-09-15 | 北京汽车动力总成有限公司 | A kind of stepless drive system of hybrid power electronics and automobile |
| CN107160994B (en) * | 2016-03-07 | 2020-03-31 | 北京汽车动力总成有限公司 | Hybrid electronic stepless driving system and automobile |
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Granted publication date: 20101117 |