CN102658772A - Power system for hybrid electric automobile - Google Patents
Power system for hybrid electric automobile Download PDFInfo
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- CN102658772A CN102658772A CN2012101623424A CN201210162342A CN102658772A CN 102658772 A CN102658772 A CN 102658772A CN 2012101623424 A CN2012101623424 A CN 2012101623424A CN 201210162342 A CN201210162342 A CN 201210162342A CN 102658772 A CN102658772 A CN 102658772A
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Abstract
The invention discloses a power system for a hybrid electric automobile. An output shaft of an engine is connected with a planet carrier; non-dead axle planet gears are arranged on the planet carrier, and are engaged with a sun gear and a gear ring; the sun gear and a transition gear are arranged coaxially; the transition gear is engaged with an output gear; the output gear is arranged on an output shaft of a first motor; a second external gear is arranged on the end part of the gear ring and is engaged with a first external gear; the first external gear and a speed reducer driving gear are arranged on an output shaft of a second motor; and the speed reducer driving gear is engaged with a speed reducer driven gear. According to the power system, the axial dimension and the radial dimension can be effectively reduced to ensure that the power system has a compact integral structure and a small and exquisite size; the power system contributes to distribution in a front engine chamber of the automobile; the using range is expanded; and the power system is also suitable for vehicles of which the front engine chambers have small space.
Description
Technical field
The invention belongs to the electric vehicle engineering field, specifically, the particularly power system on the mixed power electric car.
Background technology
Mixed power electric car (hybrid electric vehicle; HEV) have the characteristics of orthodox car and pure electric automobile concurrently; Be to be acknowledged as the energy-saving automobile that tool practical value and most probable are realized the marketization at present, the Prius of third generation Toyota automobile is the typical vehicle of current HEV the most salable.
The sun and planet gear of the Prius of third generation Toyota automobile is as the power coupling mechanism of series parallel type HEV; Possess many inputs and many output characteristics; Adjustment through control policy; Can realize mode of operations such as driving engine independent drive, motor independent drive, driving engine and motor driven in common, realize the optimum matching and intelligence switching of oily electricity, become the first-selection of HEV power coupling mechanism.
The power coupler of the Prius of third generation Toyota automobile is shown in Fig. 2 (dashed rectangle among the figure); Constitute by output gear 1, dead axle satellite gear 2, sun wheel 3, non-dead axle satellite gear 4, gear ring 5, first external gear 6, retarder driving gear 7, retarder driven gear 8, second external gear 9 and pinion carrier 10 etc.; The output shaft of driving engine ICE is connected with pinion carrier 10; On pinion carrier 10, be equipped with three by the non-dead axle satellite gear 4 of circumference well-distributed; Each non-dead axle satellite gear 4 all meshes with sun wheel 3 and gear ring 5, and sun wheel 3 is installed on the output shaft of first motor M 1.In gear ring 5, also be provided with three dead axle satellite gears 2 that are meshed with it, each dead axle satellite gear 2 all with 1 engagement of the output gear of second motor M 2, output gear 1 is the sun wheel of dead axle satellite gear 2.The excircle of said gear ring 5 is provided with second external gear 9, and this second external gear 9 meshes with first external gear 6 of outside, and the axle of first external gear 6 is gone up retarder driving gear 7 is installed, and this retarder driving gear 7 is meshed with retarder driven gear 8.
Because three gears 4 that are uniformly distributed with are non-dead axle satellite gear, therefore, sun wheel 3, non-dead axle satellite gear 4 and gear ring 5 have been formed distributing means for power supply.Because three gears being uniformly distributed with 2 are the dead axle satellite gear, therefore, the deceleration that output gear 1, dead axle satellite gear 2 and gear ring 5 have been formed second motor M 2 increases turns round device.
Then the relation of this distributing means for power supply motor M 2, M1 and engine speed is following:
n
M1+i·p·n
M2=(1+i)·n
ICE （1）
In the formula: n
M1---the rotating speed of motor M 1;
n
M2---the rotating speed of motor M 2;
The ratio of number of teeth of i---gear ring 5 inner geares and sun wheel 3;
The ratio of number of teeth (p＜1) of p---output gear 1 and gear ring 5 inner geares;
n
ICEThe rotating speed of driving engine.
The moment of torsion part of driving engine output acts on the motor M 1 through sun wheel 3, and a part acts on the gear ring 5, and there is following relation in torque distribution:
T
M1=T
ICE/(1+i) （2）
T
5=i·T
ICE/(1+i) （3）
In the formula: T
M1---engine output torque acts on the moment of torsion of motor M 1;
T
5---engine output torque acts on the moment of torsion of gear ring 5;
T
ICE---the output torque of driving engine.
Adopt the power system of above-mentioned power coupler to have following deficiency:
1) first motor M 1 is positioned at pinion carrier; First motor M 1 and 2 separations of second motor M are in the both sides of gear ring 5; And first motor M 1 is between the driving engine ICE and second motor M 2, and the axial dimension of whole like this power system is bigger, is unfavorable for that power system arranges in the automobile forward engine room; Can influence the range of use of power system, particularly inapplicable for the little vehicle in forward engine room space.
2) deceleration of second motor M 2 increases and turns round device and adopt sun and planet gear, and structure is comparatively complicated, the parts processing difficulties, and it is relatively large to make the production difficulty, and not only dismounting is inconvenient, is unfavorable for safeguarding and maintenance, and can increases the cost of whole power system.
3) first external gear 6 is in the outside of gear ring 5 circumference; The radial dimension of whole power system is bigger; It is inconvenient to make power system in the automobile forward engine room, arrange, can influence the range of use of power system equally, particularly inapplicable for the little vehicle in forward engine room space.
4) power coupler inside has the gear of 13 needs processing, can increase the productive costs of power system, and the easy generation interference of power system connection, and driving efficiency and load-carrying capacity are relatively poor.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of compact conformation, mixed power electric car power system that spatial volume is little.
Technical scheme of the present invention is following: a kind of mixed power electric car power system; Comprise driving engine (ICE), first motor (M1), second motor (M2), output gear (1), transition gear (2 '), sun wheel (3), non-dead axle satellite gear (4), gear ring (5), first external gear (6), retarder driving gear (7), retarder driven gear (8), second external gear (9) and pinion carrier (10); The output shaft of driving engine (ICE) is connected with pinion carrier (10); On pinion carrier (10), be equipped with by the non-dead axle satellite gear of circumference well-distributed (4); Each non-dead axle satellite gear (4) all meshes with sun wheel (3) and gear ring (5); Said sun wheel (3) and the same axle mounting of transition gear (2 '); Transition gear (2 ') is positioned at the outside of gear ring (5), this transition gear (2 ') and output gear (1) engagement, and output gear (1) is installed on the output shaft of first motor (M1); Be provided with second external gear (9) in the end of said gear ring (5); This second external gear (9) is meshed with first external gear (6); First external gear (6) is installed on the output shaft of second motor (M2); And second motor (M2) and first motor (M1) are positioned at the same side of gear ring (5), and retarder driving gear (7) also is installed on the output shaft of said second motor (M2), and this retarder driving gear (7) is meshed with retarder driven gear (8).
Adopt above technical scheme, sun wheel, non-dead axle satellite gear and gear ring have been formed distributing means for power supply, and the deceleration that first external gear, second external gear and gear ring have been formed second motor increases turns round device.The present invention with first motor from traditional next door that between the driving engine and second motor, moves to second motor; And second motor and first motor are positioned at the same side of gear ring; The engagement of first motor through output gear and transition gear with transmission of power to sun wheel; When not influencing the system dynamic transfer mode, can driving engine correspondingly be moved to the direction of second motor like this, correspondingly can reduce the axial length of whole power system; Set up second external gear in the end of gear ring, this second external gear and first external gear mesh, and first external gear and the same axle mounting of retarder driving gear, have reduced the radial dimension of whole power system thus.Compare with background technology; The present invention axially reaches radial dimension all to be had and reduces, and whole power system structure is compact more, spatial volume is little, in the automobile forward engine room, arranges easily; And increased the range of use of power system, particularly also applicable for the little vehicle in forward engine room space.Simultaneously, the present invention increases the deceleration of second motor and turns round device and change the full depth tooth wheel set that two external gears constitute into by traditional sun and planet gear, the parts handling ease, and it is less relatively to make the production difficulty, easy accessibility not only, and help safeguarding and maintenance.
As preferably, on said pinion carrier (10), be equipped with three by the non-dead axle satellite gear of circumference well-distributed (4).
As preferably, said gear ring (5) is structure as a whole with second external gear (9).
The invention has the beneficial effects as follows:
1) can effectively reduce axially and radial dimension, make that integral structure is compacter, spatial volume is smaller and more exquisite, help in the automobile forward engine room, arranging, and expanded range of use, also applicable for the vehicle that the forward engine room space is little.
2) through changing the drive mechanism between second motor and the gear ring into common gear pair, simplified processing technology of components, reduced manufacturing production difficulty, made easy accessibility, safeguard and keep in repair convenient.
3) output of first motor is through the engaged transmission (k＜1) of output gear and transition gear; Under the prerequisite that does not change whole power system outputting power; Make the type selecting of first motor only need reasonably reduce torque, improve rotating speed; For motor, the requirement that reasonably reduces moment of torsion raising rotating speed can reduce electric machine design difficulty and purchase cost, thereby has reduced the cost of whole dynamic assembly indirectly; Simultaneously motor weight and volume be can reduce, thereby cost, weight and the volume of whole dynamic assembly reduced indirectly.
4) power coupler inside has 11 gears, compares with background technology, has saved a gear, has reduced total cost; Simultaneously, power system connects can not produce interference, and driving efficiency is high, and load-carrying capacity is strong.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of background technology.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
As shown in Figure 1, the present invention is by formations such as driving engine ICE, first motor M 1, second motor M 2, output gear 1, transition gear 2 ', sun wheel 3, non-dead axle satellite gear 4, gear ring 5, first external gear 6, retarder driving gear 7, retarder driven gear 8, second external gear 9 and pinion carriers 10.Wherein, Driving engine ICE is positioned at the graphic leftmost side; The output shaft of this driving engine ICE is connected with pinion carrier 10, and pinion carrier 10 is positioned at the right side of driving engine ICE, on pinion carrier 10, is equipped with three by the non-dead axle satellite gear 4 of circumference well-distributed; These three non-dead axle satellite gears 4 all are positioned at gear ring 5, and three non-dead axle satellite gears 4 are meshed with gear ring 5.Be provided with sun wheel 3 in the centre of said three non-dead axle satellite gears 4, this sun wheel 3 is meshed with three non-dead axle satellite gears 4.
From Fig. 1, can know, sun wheel 3 and transition gear 2 ' the same axle mounting, transition gear 2 ' is positioned at the right side of gear ring 5, this transition gear 2 ' and output gear 1 engagement, output gear 1 is installed on the output shaft of first motor M 1.Integrally formed or be provided with second external gear 9 through assembling in the right-hand member end of said gear ring 5, this second external gear 9 is meshed with first external gear 6, and second gear 6 is 1 with the ratio of number of teeth of gear ring 5.Said first external gear 6 is installed on the output shaft of second motor M 2, and second motor M 2 and first motor M 1 all are positioned at the right side of gear ring 5.Retarder driving gear 7 also is installed on the output shaft of said second motor M 2, and this retarder driving gear 7 is positioned at the right side of first external gear 6, and retarder driving gear 7 is meshed with retarder driven gear 8.
Among the present invention, sun wheel 3, non-dead axle satellite gear 4 and gear ring 5 have been formed distributing means for power supply, and the deceleration that first external gear 6, second external gear 9 and gear ring 5 have been formed second motor M 2 increases turns round device.
This distributing means for power supply motor M 2, M1 and engine speed relationship are following:
k·n
M1+i·p·n
M2=(1+i)·n
ICE （4）
In the formula: k---the ratio of number of teeth (k＜1) of output gear 1 and transition gear 2 ';
n
M1---the rotating speed of first motor M 1;
n
M2---the rotating speed of second motor M 2;
The ratio of number of teeth of i---gear ring 5 inner geares and sun wheel 3;
The ratio of number of teeth (p＜1) of p---first external gear 6 and second external gear 9;
n
ICE---the rotating speed of driving engine.
The moment of torsion part of driving engine output acts on first motor M 1 through sun wheel 3, and a part acts on the gear ring 5, and there is following relation in torque distribution:
TM1=TICE/[k(1+i)] （5）
T5=i·TICE/(1+i) （6）
In the formula: TM1---engine output torque acts on the moment of torsion of first motor M 1;
T5---engine output torque acts on the moment of torsion of gear ring 5;
The output torque of TICE---driving engine.
Claims (3)
1. mixed power electric car power system; Comprise driving engine (ICE), first motor (M1), second motor (M2), output gear (1), sun wheel (3), non-dead axle satellite gear (4), gear ring (5), first external gear (6), retarder driving gear (7), retarder driven gear (8) and pinion carrier (10); The output shaft of driving engine (ICE) is connected with pinion carrier (10); On pinion carrier (10), be equipped with by the non-dead axle satellite gear of circumference well-distributed (4); Each non-dead axle satellite gear (4) all meshes with sun wheel (3) and gear ring (5); It is characterized in that: said sun wheel (3) and the same axle mounting of transition gear (2 '); Transition gear (2 ') is positioned at the outside of gear ring (5), this transition gear (2 ') and output gear (1) engagement, and output gear (1) is installed on the output shaft of first motor (M1); Be provided with second external gear (9) in the end of said gear ring (5); This second external gear (9) is meshed with first external gear (6); First external gear (6) is installed on the output shaft of second motor (M2); And second motor (M2) and first motor (M1) are positioned at the same side of gear ring (5), and retarder driving gear (7) also is installed on the output shaft of said second motor (M2), and this retarder driving gear (7) is meshed with retarder driven gear (8).
2. mixed power electric car power system according to claim 1 is characterized in that: on said pinion carrier (10), be equipped with three by the non-dead axle satellite gear of circumference well-distributed (4).
3. mixed power electric car power system according to claim 1 and 2 is characterized in that: said gear ring (5) is structure as a whole with second external gear (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162342.4A CN102658772B (en) | 2012-05-23 | 2012-05-23 | Hybrid electric vehicle power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162342.4A CN102658772B (en) | 2012-05-23 | 2012-05-23 | Hybrid electric vehicle power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102658772A true CN102658772A (en) | 2012-09-12 |
| CN102658772B CN102658772B (en) | 2015-12-16 |
Family
ID=46768416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210162342.4A Expired - Fee Related CN102658772B (en) | 2012-05-23 | 2012-05-23 | Hybrid electric vehicle power system |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107650666A (en) * | 2017-08-31 | 2018-02-02 | 上海众联能创新能源科技股份有限公司 | The electric parallel-serial hybrid power system of planetary gear type oil |
| WO2018228272A1 (en) * | 2017-06-13 | 2018-12-20 | 郑州宇通客车股份有限公司 | Hybrid power system having single-planetary gear set and vehicle using the hybrid power system |
| CN109477556A (en) * | 2016-07-26 | 2019-03-15 | 福伊特专利有限公司 | Driving facility with superposing type transmission mechanism |
| CN109477557A (en) * | 2016-07-26 | 2019-03-15 | 福伊特专利有限公司 | Driving equipment with superposing type transmission device |
| CN110356756A (en) * | 2019-06-15 | 2019-10-22 | 昆明鼎承科技有限公司 | A kind of power coupling transmission device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5643119A (en) * | 1994-12-28 | 1997-07-01 | Kabushikikaisha Equos Research | Hybrid vehicle powertrain |
| US20010050190A1 (en) * | 2000-06-13 | 2001-12-13 | Aisin Aw Co., Ltd. | Driving apparatus having a shaft support structure |
| CN1940345A (en) * | 2005-09-29 | 2007-04-04 | 比亚迪股份有限公司 | Gear transmission, chassis of automobile and mixed power-driven automobile |
| CN101149094A (en) * | 2007-10-25 | 2008-03-26 | 同济大学 | Hybrid power drive device based on double-planetary gear |
| CN101451597A (en) * | 2007-12-05 | 2009-06-10 | 比亚迪股份有限公司 | Mixed power outputting device |
| CN202623902U (en) * | 2012-05-23 | 2012-12-26 | 力帆实业(集团)股份有限公司 | Power device of electric car |
-
2012
- 2012-05-23 CN CN201210162342.4A patent/CN102658772B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5643119A (en) * | 1994-12-28 | 1997-07-01 | Kabushikikaisha Equos Research | Hybrid vehicle powertrain |
| US20010050190A1 (en) * | 2000-06-13 | 2001-12-13 | Aisin Aw Co., Ltd. | Driving apparatus having a shaft support structure |
| CN1940345A (en) * | 2005-09-29 | 2007-04-04 | 比亚迪股份有限公司 | Gear transmission, chassis of automobile and mixed power-driven automobile |
| CN101149094A (en) * | 2007-10-25 | 2008-03-26 | 同济大学 | Hybrid power drive device based on double-planetary gear |
| CN101451597A (en) * | 2007-12-05 | 2009-06-10 | 比亚迪股份有限公司 | Mixed power outputting device |
| CN202623902U (en) * | 2012-05-23 | 2012-12-26 | 力帆实业(集团)股份有限公司 | Power device of electric car |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477556A (en) * | 2016-07-26 | 2019-03-15 | 福伊特专利有限公司 | Driving facility with superposing type transmission mechanism |
| CN109477557A (en) * | 2016-07-26 | 2019-03-15 | 福伊特专利有限公司 | Driving equipment with superposing type transmission device |
| WO2018228272A1 (en) * | 2017-06-13 | 2018-12-20 | 郑州宇通客车股份有限公司 | Hybrid power system having single-planetary gear set and vehicle using the hybrid power system |
| CN107650666A (en) * | 2017-08-31 | 2018-02-02 | 上海众联能创新能源科技股份有限公司 | The electric parallel-serial hybrid power system of planetary gear type oil |
| CN110356756A (en) * | 2019-06-15 | 2019-10-22 | 昆明鼎承科技有限公司 | A kind of power coupling transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102658772B (en) | 2015-12-16 |
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Granted publication date: 20151216 Termination date: 20210523 |