CN109795306A - A kind of actuating unit for hybrid vehicle - Google Patents
A kind of actuating unit for hybrid vehicle Download PDFInfo
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- CN109795306A CN109795306A CN201910003363.3A CN201910003363A CN109795306A CN 109795306 A CN109795306 A CN 109795306A CN 201910003363 A CN201910003363 A CN 201910003363A CN 109795306 A CN109795306 A CN 109795306A
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Abstract
The invention proposes a kind of actuating units for hybrid vehicle, including internal combustion engine, the first motor generator, the second motor generator, output shaft, first planetary gear set, the second planetary gear set, third planet gear set, gear, brake I, clutch II, brake III；The internal combustion engine is fixedly connected with first planetary gear set, and the first motor generator is fixedly connected with first planetary gear set, and the second motor generator is fixedly connected with third planet gear set；Brake I is fixedly connected with the second planetary gear set, and the both ends of clutch II are fixedly connected with the second planetary gear set and third planet gear set respectively；The first planetary gear set with two connecting rods with the second planetary gear set by connecting, and the second planetary gear set is with third planet gear set by connecting with a connecting rod and clutch II；The wheel drive shaft is fixedly connected by gear with third planet gear set.Present system efficiency balance, accelerating ability are good.
Description
Technical field
The invention belongs to hybrid electric vehicle power transmission technical field, in particular to a kind of system energy efficiency is high, adds
Fast performance is good, actuating unit suitable for hybrid vehicle.
Background technique
In recent years, people are in the research and development for actively pushing forward novel energy-saving environment-friendly automobile.However, pure electric automobile due to
Cruising ability is insufficient, and expensive relative to fuel-engined vehicle, while the charging of pure electric automobile is also the problem of can not ignore.
Therefore, pure electric automobile is more difficult is directly received by the majority of consumers.Hybrid vehicle makes it by the way that second of power source is added
Cost can be also controlled well while improving fuel economy, embody greater advantage.
The higher a few money vehicles of hybrid vehicle occupation rate of market are all made of epicyclic gear train as power coupling at present
Structure, for example, Toyota Motor release oil-electric vehicle it is general it is sharp this.This vehicle uses double planet wheel rows of mixing structure at present, will
Engine, generator, motor, vehicle output shaft are coupled.It is mixed that General Motors Corporation is also proposed corresponding double planet wheel rows of mixing
Power vehicle is closed, simultaneity factor joined two clutches, realize two different power dividing operating modes.
But above-mentioned hybrid power system itself does not have pure electric mode, is not suitable for applying in current mainstream
On plug-in hybrid-power automobile, under high speed cruise conditions, power dividing mode activated is still used, due to extra two
Secondary energy conversion, system capacity utilization rate are lower.
In short, problem of the existing technology is: hybrid vehicle multi-state conditional systems efficiency is unbalanced, acceleration
Can be poor, it needs to improve.
Summary of the invention
To solve the above problems, the invention discloses a kind of actuating unit for hybrid vehicle, system energy
Amount efficiency is high, accelerating ability is good.
In order to achieve the above objectives, technical scheme is as follows:
A kind of actuating unit for hybrid vehicle, it is characterised in that: including internal combustion engine, the first dynamoelectric and power generation
Machine, the second motor generator, output shaft, first planetary gear set, the second planetary gear set, third planet gear set, gear, system
Dynamic device I, clutch II, brake III；The internal combustion engine is fixedly connected with first planetary gear set, the first motor generator
It is fixedly connected with first planetary gear set, the second motor generator is fixedly connected with third planet gear set；Brake I and second
Planetary gear set is fixedly connected, and the both ends of clutch II are fixed with the second planetary gear set and third planet gear set respectively to be connected
It connects；The first planetary gear set with the second planetary gear set by being connect with two connecting rods, the second planetary gear set and the
Three planetary gear sets with a connecting rod and clutch II by connecting；The wheel drive shaft passes through gear and third planet tooth
Wheel group is fixedly connected.
The beneficial effects of the present invention are:
1, multi-state conditional systems efficiency balance: utilizing three rows of planetary gear structures, realize the hybrid mode of power dividing,
Can have opposite series connection and the higher system effectiveness of parallel hybrid electric.Two kinds of electric-only modes can make vehicle in city
Pure electric vehicle driving is realized under city's congestion operating condition, imported power dividing drive mode can provide higher effect under speed operation
Rate, the parallel fuel efficiency that hybrid power system can be further promoted under high-speed working condition.
2, accelerating ability is good: bi-motor enables to various parts to effectively improve and improve vehicle with high torque output
Dynamic property, fuel consumption and emission performance, while the presence of electric-only mode make the device suitable for depth mix
Power vehicle and plug-in hybrid-power automobile are suitable for plug-in hybrid-power automobile.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of automobile multimodal fusion dynamic coupling device of the present invention.
Reference signs list:
1-internal combustion engine, the 2-the first motor generator, the 3-the second motor generator, 4-output shafts, the 5-the first planet tooth
Wheel group, 51-sun gears I, 52-planet carriers I, 53-gear rings I, the 6-the second planetary gear set, 61-sun gears II, 62-rows
Carrier II, 63-gear rings II, 7-third planet gear sets, 71-sun gears III, 72-planet carriers III, 73-gear rings III, 8-
Gear I, 9-brakes I, 10-clutches II, 11-brakes III.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
As shown in Figure 1, a kind of actuating unit for hybrid vehicle of the present invention, including internal-combustion engine
Machine 1, the first motor generator 2, the second motor generator 3, output shaft 4, first planetary gear set 5, the second planetary gear set 6,
Third planet gear set 7, gear 8, brake I 9, clutch II 10 and brake III；
The first planetary gear set 5 include sun gear I 51, planet carrier I 52 and gear ring I 53, described I 52 one end of planet carrier with too
I 51 engagement of sun wheel, the other end are engaged with gear ring I 53,
Second planetary gear set 6 includes sun gear II 61, planet carrier II 62 and gear ring II 63, described II 62 one end of planet carrier
It being engaged with sun gear II 61, the other end is engaged with gear ring II 63,
The third planet gear set 7 includes sun gear II 71, planet carrier II 72 and gear ring II 73, described II 72 one end of planet carrier
It is engaged with sun gear II 71, the other end is engaged with gear ring II 73；
The internal combustion engine 1 is fixedly connected with the gear ring I 53 of first planetary gear set 5, the planet carrier of first planetary gear set 5
I 52 are fixedly connected with the gear ring II 63 of the second planetary gear set 6, first motor generator 2 and first planetary gear set 5
Sun gear I 51 is fixedly connected；
One end of the sun gear II 61 of second planetary gear set 6 is connect with brake I 9, and the other end and clutch II 10 connect
It connecing, the planet carrier II 62 of second planetary gear set 6 is connect with the planet carrier II 72 of third planet gear set 7, and described second
The gear ring II 63 of planetary gear set 6 is fixedly connected with the planet carrier I 52 of first planetary gear set 5；
One end of the sun gear II 71 of the third planet gear set 7 is connect with clutch II 10, the other end and the second electronic hair
Motor 3 is fixedly connected, II 72 one end of planet carrier of the third planet gear set 7 and the planet carrier II of the second planetary gear set 6
62, the other end is fixedly connected with gear 8, and the gear ring II 73 of the third planet gear set 7 is fixedly connected with brake III 11；
The output shaft of first motor generator 2 is fixedly connected with the gear ring I 53 of first planetary gear set 5, the second electronic hair
The output shaft of motor 3 is fixedly connected with the sun gear II 71 of third planet gear set 7；
The gear 8 is fixedly connected with output shaft 4.
The present invention by the engagement of control brake I 9, clutch II 10 and brake III 11 with separate, realization single motor
Electric-only mode, bi-motor electric-only mode, paralleling model and imported power dividing mode.And press engine start whether,
Whether motor generator works, whether vehicle in acceleration and deceleration, system also have combination drive mode, Brake energy recovery mode,
Electric-only mode, parking operating condition.
It below will be dynamic to the mixing according to system actuators state, engine start state, motor generator working condition
The operating mode of power transmission drive is introduced with state.
1, car-parking model I: brake I 9, clutch II 10 and brake III 11 are in discrete state, internal combustion engine
1, the first motor generator 2 and the second motor generator 3 do not work, and vehicle remains static.
2, when single motor electric-only mode, brake I 9 and clutch II 10 are separated, and brake III 11 combines.
Under this mode, gear ring III 73 is fixed by brake III 11, internal combustion engine 1 and the first motor generator 2
It does not work, the second motor generator 3 works independently；Second motor generator 3 is fixedly connected with reality with gear 8 with fixed drive ratio
Existing pure electric vehicle drive mode, revolving speed are directly related with speed and vehicle demand torque to torque；And vehicle is in braking deceleration
State, the first motor generator 1 can be used as generator, braking energy be converted to electric energy, to charge the battery.
3, when bi-motor electric-only mode, brake I 9 is separated, and clutch II 10 and brake III 11 combine.
Under this mode, internal combustion engine 1 do not work, the first motor generator 2 and the equal work of the second motor generator 3
Make, while the first motor generator 2 and the second motor generator 3 process first planetary gear set 5, the second planetary gear set 6, the
Three planetary gear sets 7 and clutch II 10 connect；The mode is similar with single motor electric-only mode, 2 He of the first motor generator
The revolving speed of second motor generator 3 is directly related with speed, and the torque of the first motor generator 2 and the second motor generator 3
It can be maximized according to whole electric drive efficiency and carry out free distribution；And vehicle is in braking deceleration state, the first dynamoelectric and power generation
Machine 1 and the second motor generator 3 are used as generator, braking energy are converted to electric energy, to charge the battery；Both the above
Electric-only mode can promote the whole efficiency of hybrid vehicle under different loads operating condition.
4, when parallel drive mode, clutch II 10 is separated, and brake I 9 and brake III 11 combine.
Under this mode, the first motor generator 2 does not work, internal combustion engine 1 and the second motor generator 3 work；
Internal combustion engine 1 passes through first planetary gear set 5, the second planetary gear set 6, and third planet gear set 7 is fixedly connected with two
Bar connection, the revolving speed of engine are related to speed；Gear ring III 73 is fixed, and the second motor generator 3 and gear 8 pass through the third line
Star gear set 7 forms fixed ratio connection, and revolving speed is related to speed；Internal combustion engine 1 and the second motor generator 3 provide simultaneously
The required torque of vehicle, wherein the second motor generator 3 mainly plays auxiliary adjustment, help promotes internal combustion engine 1
The thermal efficiency；And vehicle is in braking deceleration state, braking energy is converted to electric energy as generator by the second motor generator 3,
To charge the battery；Parallel drive mode efficiency below high speed or some specific operations is higher.
5, when imported power dividing mode, brake I 9 and clutch II 10 are separated, and brake III 11 combines.
Under this mode, internal combustion engine 1, the first motor generator 2 and the second motor generator 3 work；Planet
It takes turns I 52, sun gear II 61 and first planetary gear set 5 is connected with the second planetary gear set 6, fixed connecting rod: planetary gear II 62,
Second planetary gear set 6 is connected by planetary gear III 72 with third planet gear set 7.
Internal combustion engine 1 is connect with the first motor generator 2 by first planetary gear set 5, and gear ring III 73 is fixed, the
Two motor generators 3 are connected with each other with gear 8 by third planet gear set 7, and fixed drive ratio is formed；
1 power of internal combustion engine passes through its output shaft, is input to the gear ring I 53 of first row planetary system, at this point, entire first seniority among brothers and sisters
Star gear set 5 is used as power dividing mechanism；2 main function of the first motor generator is made by adjusting its own revolving speed at this time
It obtains internal combustion engine 1 and works in its best fuel-economy efficiency band；And when engine power is greater than demand power, the second electricity
Extra engine power is converted to electric energy and charged the battery by dynamic generator 3, and when engine power is less than demand power,
Second motor generator 3 provides energy as motor and drives vehicle；Under this mode, when engine does not start, pass through coordination
Two motor generators can also realize pure electric vehicle drive mode or Brake energy recovery mode；Mixing is realized when engine start
Drive mode.
Following table is operating mode summary sheet of the invention:
1 operating mode summary sheet of table
The present invention utilizes three rows of planetary gear set structures, realizes the actuating unit for being used for hybrid vehicle, has list
Motor electric-only mode, bi-motor electric-only mode, paralleling model and imported power dividing mode, system effect with higher
Rate.
Engagement by the brake I 9, clutch II 10 and brake III 11 with separate, it can be achieved that the pure electricity of single motor
Dynamic model formula, bi-motor electric-only mode, paralleling model and imported power dividing mode.Single motor and bi-motor electric-only mode
Vehicle can be made to realize that pure electric vehicle drives under urban congestion operating condition, while the first motor generator 1 and the when the vehicle is braked
Two motor generators 3 are used as generator, and braking energy is converted to electric energy, thus charge the battery, imported power dividing
Drive mode can provide higher efficiency under speed operation.
Multiple-working mode of the invention allows the system to adapt to complicated, changeable working environment, effectively improves
With dynamic property, the fuel consumption and emission performance for improving vehicle, it is suitable for deep hybrid power automobile and plug-in mixing is dynamic
Power automobile.
Claims (6)
1. a kind of actuating unit for hybrid vehicle, it is characterised in that:
Including internal combustion engine (1), the first motor generator (2), the second motor generator (3), output shaft (4), the first planet
Gear set (5), the second planetary gear set (6), third planet gear set (7), gear (8), brake I (9), clutch II
(10), brake III (11)；
The internal combustion engine (1) is fixedly connected with first planetary gear set (5), the first motor generator (2) and the first planet
Gear set (5) is fixedly connected, and the second motor generator (3) is fixedly connected with third planet gear set (7)；
Brake I (9) is fixedly connected with the second planetary gear set (6), the both ends of clutch II (10) respectively with the second planet tooth
Wheel group (6) is fixedly connected with third planet gear set (7)；
The first planetary gear set (5) with the second planetary gear set (6) by being connect with two connecting rods, the second planetary gear
Group (6) is with third planet gear set (7) by connecting with a connecting rod and clutch II (10)；
The wheel drive shaft (4) is fixedly connected by gear (8) with third planet gear set (7).
2. a kind of actuating unit for hybrid vehicle according to claim 1, it is characterised in that:
The first planetary gear set (5) includes sun gear I (51), planet carrier I (52) and gear ring I (53), the planet carrier I
(52) one end is engaged with sun gear I (51), and the other end is engaged with gear ring I (53)；
Second planetary gear set (6) includes sun gear II (61), planet carrier II (62) and gear ring II (63), the planet carrier
II (62) one end is engaged with sun gear II (61), and the other end is engaged with gear ring II (63)；
The third planet gear set (7) includes sun gear III (71), planet carrier III (72) and gear ring III (73), the planet carrier
III (72) one end is engaged with sun gear III (71), and the other end is engaged with gear ring III (73)；
The sun gear I (51) is fixedly connected with the first motor generator (2), described planet carrier I (52) one end and gear ring II
(63) it is fixedly connected, the other end is fixedly connected with sun gear II (61), the gear ring I (53) and internal combustion engine (1) fixed company
It connects；
The sun gear II (61) is fixedly connected with sun gear I (51), and described planet carrier II (62) one end and gear ring II (63) are solid
Fixed connection, the other end are fixedly connected with planet carrier III (72), and the gear ring II (63) is fixedly connected with gear ring I (53)；
Described sun gear III (71) one end is fixedly connected with the second motor generator (3), and the other end is connect with clutch II (10),
Described planet carrier III (72) one end is fixedly connected with planet carrier II (62), and the other end is fixedly connected with gear (8), the gear ring III
(73) it is fixedly connected with sun gear III (71)；
The brake I (9) is fixedly connected with sun gear II (61), and described clutch II (10) one end and sun gear II (61) are even
It connects, the other end is fixedly connected with gear ring III (73), and the brake III (11) connect with gear ring III (73)；；
The output shaft of first motor generator (2) is fixedly connected with sun gear I (51), the second motor generator (3) it is defeated
Shaft is fixedly connected with sun gear III (71).
3. a kind of actuating unit for hybrid vehicle according to claim 1 or 2, it is characterised in that: system
Dynamic device I (9) and clutch II (10) separation, when brake III (11) combines, are in single motor electric-only mode.
4. a kind of actuating unit for hybrid vehicle according to claim 1 or 2, it is characterised in that: system
Dynamic device I (9) separation, clutch II (10) and brake III (11) combine；Internal combustion engine (1) do not work, the first dynamoelectric and power generation
When machine (2) and the second motor generator (3) work, it is in bi-motor electric-only mode.
5. a kind of actuating unit for hybrid vehicle according to claim 1 or 2, it is characterised in that: from
Clutch II (10) separation, brake I (9) and brake III (11) combine；First motor generator (2) do not work, internal-combustion engine
When machine (1) and the second motor generator (3) work, it is in paralleling model.
6. a kind of actuating unit for hybrid vehicle according to claim 1 or 2, it is characterised in that:, system
Dynamic device I (9) and clutch II (10) separation, brake III (11) combine；Internal combustion engine (1), the first motor generator (2) and
When second motor generator (3) works, it is in power dividing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003363.3A CN109795306B (en) | 2019-01-03 | 2019-01-03 | Power transmission device for hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003363.3A CN109795306B (en) | 2019-01-03 | 2019-01-03 | Power transmission device for hybrid electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109795306A true CN109795306A (en) | 2019-05-24 |
| CN109795306B CN109795306B (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910003363.3A Active CN109795306B (en) | 2019-01-03 | 2019-01-03 | Power transmission device for hybrid electric vehicle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090312130A1 (en) * | 2008-06-11 | 2009-12-17 | Hyundai Motor Company | Power train of hybrid vehicle |
| US20090312128A1 (en) * | 2008-06-12 | 2009-12-17 | Hyundai Motor Company | Power train of hybrid vehicle |
| CN102734401A (en) * | 2011-04-14 | 2012-10-17 | 通用汽车环球科技运作有限责任公司 | Hybrid transmission |
| CN103867664A (en) * | 2012-12-12 | 2014-06-18 | 现代自动车株式会社 | Power transmission system of hybrid electric vehicle |
| CN105109326A (en) * | 2015-08-19 | 2015-12-02 | 南京理工大学 | Hybrid transmission driving device |
-
2019
- 2019-01-03 CN CN201910003363.3A patent/CN109795306B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090312130A1 (en) * | 2008-06-11 | 2009-12-17 | Hyundai Motor Company | Power train of hybrid vehicle |
| US20090312128A1 (en) * | 2008-06-12 | 2009-12-17 | Hyundai Motor Company | Power train of hybrid vehicle |
| CN102734401A (en) * | 2011-04-14 | 2012-10-17 | 通用汽车环球科技运作有限责任公司 | Hybrid transmission |
| CN103867664A (en) * | 2012-12-12 | 2014-06-18 | 现代自动车株式会社 | Power transmission system of hybrid electric vehicle |
| CN105109326A (en) * | 2015-08-19 | 2015-12-02 | 南京理工大学 | Hybrid transmission driving device |
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| Publication number | Publication date |
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| CN109795306B (en) | 2022-02-22 |
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