CN207345474U - Hybrid vehicle and its triple axle planet combined hybrid system - Google Patents
Hybrid vehicle and its triple axle planet combined hybrid system Download PDFInfo
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- CN207345474U CN207345474U CN201721125620.3U CN201721125620U CN207345474U CN 207345474 U CN207345474 U CN 207345474U CN 201721125620 U CN201721125620 U CN 201721125620U CN 207345474 U CN207345474 U CN 207345474U
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Abstract
Hybrid vehicle and its triple axle planet combined hybrid system, including engine, planet row, the first motor, the second motor and system output shaft are the utility model is related to, compared to traditional double planet wheel rows of mixing dynamical system, obtain greatly simplifying in structure, correspondingly, control is simple, and reliability is higher.Moreover, it is still able to realize the operating mode that existing dynamical system can be realized by each mechanism.Also, by the first end of locking planet row, the output torque of engine is transferred to system output shaft by the second end and the 3rd end of planet row, realize that the straight of engine drives function, energy secondary is avoided to change, energy loss caused by reducing power dividing, improves system effectiveness.It can realize that the second motor is static under high-speed working condition by clutch, avoid the weak magnetic that the second motor occurs by fast idle under high-speed working condition from losing.In addition, the combined hybrid system integrated level is high, modularization, generalization are easy to implement.
Description
Technical field
It the utility model is related to hybrid vehicle and its triple axle planet combined hybrid system.
Background technology
In face of energy shortage and the present situation of environmental pollution getting worse, new-energy automobile is automotive research side main at present
To.Mixed power automobile driving system has three kinds of forms of series, parallel and series-parallel connection.Tandem energy realizes the optimum control of engine,
But energy is larger by two times transfer loss；Parallel connection can realize preferable transmission efficiency, but engine is with exporting shaft mechanical
Connection, it is impossible to ensure that engine always works in optimal region；Series-parallel connection has the advantages of series connection and parallel connection concurrently, is current more mainstream
Drive system scheme.
Current series parallel type dynamical system mainly realizes power dividing using double planet wheel rows of mixing Dual-motors Driving power coupling technology
With different operating modes, using the decoupling that speed and engine speed can be realized to motor speed regulating method, when controlling engine
It is operated in high efficient district quarter, fuel-economizing potentiality are big.But current double planet wheel rows of mixing dynamical system needs two planet rows, cost is higher,
Moreover, each planet row has relevant mechanical structure, considerably complicated connection is also required between the two planet rows, therefore,
Existing double planet wheel rows of mixing power system architecture is considerably complicated, and correspondingly, control is cumbersome, and reliability is relatively low.In addition, currently on the market
Existing planet combined hybrid system, the i.e. shortcoming of double planet wheel rows of mixing dynamical system also have：1st, drive motor idle running weak under high-speed working condition
Magnetic loss is big；2nd, there are power dividing, energy secondary converting system efficiency are low for engine；3rd, driven under high-speed working condition without engine direct
Function, ISG motors are low in low rotation speed area efficiency.
Utility model content
The purpose of this utility model is to provide a kind of hybrid vehicle triple axle planet combined hybrid system, to solve tradition
Double-planet combined hybrid system it is complicated the problem of.The utility model also provides a kind of hybrid vehicle.
To achieve the above object, the embodiment of the utility model includes a kind of hybrid vehicle triple axle planet series-parallel connection system
System, including engine, planet row, the first motor, the second motor and system output shaft, sun gear, planet in the planet row
It is first end to have one in frame and gear ring, and one is second end, and one is the 3rd end, the first motor connection described first
End, the first end connect housing by brake, and the engine connects the second end, and second motor passes through clutch
Device connects the 3rd end, and the 3rd end connects the system output shaft.
There was only a planet row in the triple axle planet combined hybrid system, compared to traditional double planet wheel rows of mixing dynamical system, knot
Obtain greatly simplifying on structure, correspondingly, control is simple, and reliability is higher.Moreover, although structure does not have existing dynamical system
System is complicated, and still, the function of the combined hybrid system does not weaken, is still able to realize electric-only mode by each mechanism, starts
Machine and motor joint drive pattern, engine direct drive pattern, engine driving and power generation mode and Brake energy recovery pattern etc.
Operating mode.Moreover, by the first end of locking planet row, the output torque of engine passes through the second end of planet row and the 3rd
End is transferred to system output shaft, realizes that the straight of engine drives function, avoids energy secondary from changing, caused by reducing power dividing
Energy loss, improves system effectiveness.It can realize that the second motor is static under high-speed working condition, avoids high-speed working condition by clutch
The weak magnetic loss that lower second motor occurs by fast idle.In addition, the combined hybrid system integrated level is high, modularization is easy to implement,
Generalization.
The first end is sun gear, and second end is planet carrier, and the 3rd end is gear ring.
In order to shorten system axial size, convenient arrangement, first motor connects described the by first gear mechanism
One end, so that first motor is arranged in the radial direction side of engine and planet row place axis, the clutch leads to
Cross second gear mechanism and connect the 3rd end, so that second motor is arranged in axis where the engine and planet row
Radial direction opposite side.
Axis where axis where axis, the second motor where first motor and the engine and planet row is put down
OK.
The utility model also provides a kind of hybrid vehicle, including a kind of triple axle planet combined hybrid system, the series-parallel connection
System includes engine, planet row, the first motor, the second motor and system output shaft, sun gear, planet in the planet row
It is first end to have one in frame and gear ring, and one is second end, and one is the 3rd end, the first motor connection described first
End, the first end connect housing by brake, and the engine connects the second end, and second motor passes through clutch
Device connects the 3rd end, and the 3rd end connects the system output shaft.
The first end is sun gear, and second end is planet carrier, and the 3rd end is gear ring.
First motor connects the first end by first gear mechanism so that first motor be arranged in it is described
The radial direction side of axis where engine and planet row, the clutch connect the 3rd end by second gear mechanism, with
Second motor is set to be arranged in the radial direction opposite side of engine and planet row place axis.
Axis where axis where axis, the second motor where first motor and the engine and planet row is put down
OK.
Brief description of the drawings
Fig. 1 is triple axle planet combined hybrid system structure diagram；
Fig. 2 is triple axle planet combined hybrid system control logic schematic diagram.
Embodiment
Hybrid vehicle embodiment
The present embodiment provides a kind of hybrid vehicle, which includes a kind of triple axle planet series-parallel connection system
System, certainly, other components is further included in the hybrid vehicle, since other components are not the utility model needs
The utility model point of protection, the present embodiment just no longer illustrate, and are carried out below only for triple axle planet combined hybrid system detailed
Description.
Triple axle planet combined hybrid system includes engine 1, planet row, the first motor 14, the second motor 5 and system output shaft
10.Since the first motor 14 under normal circumstances has power generation and driving effect, the first motor 14 by taking ISG motors as an example, by
It is driving vehicle in the effect of the second motor 5 under normal circumstances, therefore, the second motor 5 is exemplified by driving motor.
Planet row includes three ends, is referred to as first end, second end and the 3rd end, due to three end difference of planet row
Sun gear, planet carrier and gear ring, therefore, first end, second end and the 3rd end respectively with sun gear, planet carrier and gear ring
It is one of to correspond.First motor 14 connects first end, and first end connects housing by brake 4, and brake 4 is to lock
Only clutch, engine 1 connect second end, and the second motor 5 connects the 3rd end, the 3rd end connection system output by clutch 6
Axis 10.First end, second end and the 3rd end and the correspondence of sun gear, planet carrier and gear ring be not unique, in principle altogether
There are six kinds of correspondences, different correspondences represents machine driving no-load voltage ratio difference, therefore, meeting the premise of service requirement
Under, it can be set specific corresponding to relation according to actual needs, in the present embodiment, provide one kind specific corresponding to relation：
First end is sun gear, and second end is planet carrier, and the 3rd end is gear ring.So, as shown in Figure 1, the first motor 14 connects the sun
Wheel 12, sun gear 12 connect housing by brake 4, and engine 1 connects planet carrier 11, and the second motor 5 is connected by clutch 6
Gear ring 8, gear ring 8 connect system output shaft 10, and system output shaft 10 connects wheel 9 by gear.In addition, normal conditions
Under, engine 1 connects planet carrier 11 by torsion vibration absorber 2.Second motor 5 is reduced through gear reduction of speed torque rear-guard motor-car
Dependence to the large torque of the second motor 5, saves system cost.
In order to shorten system axial size, convenient arrangement, the first motor 14 is arranged in axis where engine 1 and planet row
Radial direction side, the radial direction opposite side of axis where the second motor 5 is arranged in engine 1 and planet row, in order to change transmission side
To the first motor 14 connects sun gear 12 by first gear mechanism, as shown in Figure 1, first gear mechanism includes gear 3 and tooth
Wheel 13, gear 3 is connected with sun gear 12, and gear 3 is engaged with gear 13, and the first motor 14 is connected with gear 13, and clutch 8 is logical
Second gear mechanism connection gear ring 8 is crossed, as shown in Figure 1, second gear mechanism includes gear 7, gear 7 is engaged with gear ring 8, clutch
Device 8 is connected with gear 7.Further, 14 place axis of the first motor, 5 place axis of the second motor and engine 1 and planet row
Place axis is arranged in parallel.Therefore, system is arranged using three axis, and the first motor 14 and the second motor 5 are arranged in engine 1 and row
The radially opposite sides of axis, can shorten system axial size, facilitate mounting arrangements where star row.
The combined hybrid system includes following operating mode：Electric-only mode, engine and motor joint drive pattern, engine
It is straight to drive pattern, engine driving and power generation mode and Brake energy recovery pattern.
(1) electric-only mode
When vehicle start or when being run at a low speed in flat road surface, if vehicle demand power is smaller, and battery SOC ＞
SOCH, the second motor 5 is operated alone vehicle, worked with electric-only mode.At this time, engine 1, which is shut down, does not work, at clutch 6
In bonding state, brake 4 is in non-lockup state, and the first motor 14 dallies, and the second motor 5 drives whole after reduction of speed torque
Car.
Under the pattern, the input of combined hybrid system is the second motor 5, exports and is for gear ring 8, specific torque relationship：Tout=
k2TMG2, wherein, k2For gear ring 8 and the ratio of 7 number of teeth of gear, TMG2For the output torque of the second motor 5, SOC is battery capacity shape
State, SOCHFor the state of charge upper limit value of setting.
(2) engine and motor joint drive pattern
It is whether sufficient according to battery SOC, can be divided into joint drive pattern 1. with joint drive pattern 2..
(i) drive pattern is combined 1.
When vehicle is suddenly accelerating or climbing operating mode, vehicle demand torque and power are larger, it is necessary to engine 1 and second
The joint driving vehicle of motor 5, if SOC ＞ SOCH, into joint drive pattern 1..At this time, engine 1 works, the first motor
14 do not work, and the second motor 5 works in motoring condition, and clutch 6 is in bonding state, and brake 4 is in lockup state.
Under the pattern, the input of combined hybrid system is 1 and second motor 5 of engine, exports and is closed for gear ring 8, specific torque
It is to be：Tout=k2TMG2+k1/(1+k1)TENG.Wherein, k1For gear ring 8 and the ratio of 12 number of teeth of sun gear, k2For gear ring 8 and gear
The ratio of 7 numbers of teeth, TENGFor the output torque of engine 1, TMG2For the output torque of the second motor 5.
(ii) drive pattern is combined 2.
When vehicle is suddenly accelerating or climbing operating mode, vehicle demand torque and power are larger, it is necessary to engine 1 and second
The joint driving vehicle of motor 5, if SOC≤SOCH, into joint drive pattern 2..At this time, engine 1 works, the first motor
14 work in generating state, and the second motor 5 works in motoring condition, and clutch 6 is in bonding state, and brake 4 is in non-lock
Only state.
Under the pattern, the input of combined hybrid system is 1 and second motor 5 of engine, exports and is closed for gear ring 8, specific torque
It is to be：Tout=k2TMG2+k1/(1+k1)TENG.Wherein, k1For gear ring 8 and the ratio of 12 number of teeth of sun gear, k2For gear ring 8 and gear
The ratio of 7 numbers of teeth, TENGFor the output torque of engine 1, TMG2For the output torque of the second motor 5.
(3) engine direct drives pattern
When vehicle high-speed cruises when driving, vehicle demand power is less than or equal to the maximum exportable power of engine, and electricity
Pond SOC is sufficient, i.e. Pdemand≤PENGMAnd SOC ＞ SOCH, to avoid power dividing from causing energy secondary to change, improve system effect
Rate, pattern is driven into engine direct.Also, realize that the second motor 5 is static under high-speed working condition, avoids high speed work by clutch 6
5 weak magnetic of the second motor is lost under condition.At this time, engine 1 works, and the first motor 14 and the second motor 5 do not work, clutch 6
In discrete state, brake 4 is in lockup state.
Under the pattern, the input of combined hybrid system is engine 1, exports and is for gear ring 8, specific torque relationship：Tout=
k1/(1+k1)TENG, wherein, k1For gear ring 8 and the ratio of 12 number of teeth of sun gear, TENGFor the output torque of engine 1, PdemandFor
Vehicle demand power, PENGMFor the maximum exportable power of engine.
(4) engine driving and power generation mode
When vehicle demand power is less than the maximum exportable power of engine, and SOC is inadequate, i.e. Pdemand≤PENGMAnd
SOC≤SOCH, into engine driving and power generation mode.At this time, engine 1 works, and the first motor 14 works in generating state,
Second motor 5 does not work, and clutch 6 is in discrete state, and brake 4 is in non-lockup state.
Under the pattern, the input of combined hybrid system is engine 1, exports and is for gear ring 8, specific torque relationship：Tout=
k1/(1+k1)TENG, wherein, k1For gear ring 8 and the ratio of 12 number of teeth of sun gear, TENGFor the output torque of engine 1.
(5) Brake energy recovery pattern
When driver unclamps throttle or steps on braking, into Brake energy recovery pattern.At this time, engine 1 is shut down not
Work, the first motor 14 dally, and clutch 6 is in bonding state, and brake 4 is in non-lockup state, and the second motor 5 is operated in
Generating state recovers energy.
Under the pattern, specific torque relationship is：Tout=k2TMG2, wherein, k2For the ratio of gear ring 8 and 7 number of teeth of gear,
TMG2For the output torque of the second motor 5.
Table 1 is each specific working status of parts under several modes.
Table 1
| Operating mode | Engine | First motor | Second motor | Brake | Clutch |
| Electric-only mode | Do not work | Idle running | It is electronic | Non- locking | With reference to |
| Joint drive pattern is 1. | Work | Do not work | It is electronic | Locking | With reference to |
| Joint drive pattern is 2. | Work | Power generation | It is electronic | Non- locking | With reference to |
| Engine direct drives pattern | Work | Do not work | Do not work | Locking | Separation |
| Engine driving and power generation mode | Work | Power generation | Do not work | Non- locking | Separation |
| Brake energy recovery pattern | Do not work | Idle running | Power generation | Non- locking | With reference to |
As shown in Fig. 2, be a kind of specific control logic schematic diagram of combined hybrid system, wherein, SOCH、PdemandAnd PENGM
Definition has above been provided, has just no longer been illustrated here, PTMFor the maximum power of the second motor.
The first step, determines whether to enter Brake energy recovery pattern according to the state of gas pedal, when gas pedal not
When being operated, into Brake energy recovery pattern, otherwise into second step.
Second step, according to vehicle demand power PdemandWhether the maximum power P of second motor is more thanTMAnd battery capacity is
No abundance determines whether to enter electric-only mode, works as Pdemand＜ PTMAnd SOC ＞ SOCH, into pure power mode, otherwise into
Three steps.
3rd step, when vehicle demand power is more than the maximum exportable power of engine, i.e. Pdemand＞ PENGM, into joint
Drive pattern, into the 4th step, otherwise into the 6th step.
4th step, as battery SOC abundance, i.e. SOC ＞ SOCH, otherwise into the 5th step into joint drive pattern 1..
5th step, into joint drive pattern 2..
6th step, when vehicle demand power is less than or equal to the maximum exportable power of engine, i.e. Pdemand≤PENGMIf
SOC ＞ SOCH, pattern is driven into engine direct, otherwise into the 7th step.
7th step, into engine driving and power generation mode.
Specific embodiment is presented above, but the utility model is not limited to described embodiment.This practicality
New basic ideas are above-mentioned basic scheme, for those of ordinary skill in the art, teaching according to the present utility model,
Design the models of various modifications, formula, parameter and creative work need not be spent.The principle of the utility model is not being departed from
The scope of protection of the utility model is still fallen within the change, modification, replacement and modification carried out in the case of spirit to embodiment
It is interior.
Triple axle planet combined hybrid system embodiment
The present embodiment provides a kind of triple axle planet combined hybrid system, since above-mentioned hybrid vehicle is to the combined hybrid system
It is made that and describes in detail, the present embodiment just no longer illustrates.
Claims (8)
1. a kind of hybrid vehicle triple axle planet combined hybrid system, it is characterised in that including engine, planet row, the first electricity
Machine, the second motor and system output shaft, it is first end to have one in the sun gear, planet carrier and gear ring in the planet row, one
A is second end, and one is the 3rd end, and first motor connects the first end, and the first end connects shell by brake
Body, the engine connect the second end, and second motor connects the 3rd end by clutch, and the 3rd end connects
Connect the system output shaft.
2. hybrid vehicle triple axle planet combined hybrid system according to claim 1, it is characterised in that the first end
For sun gear, second end is planet carrier, and the 3rd end is gear ring.
3. hybrid vehicle triple axle planet combined hybrid system according to claim 1 or 2, it is characterised in that described
One motor connects the first end by first gear mechanism, so that first motor is arranged in the engine and planet row
The radial direction side of place axis, the clutch connects the 3rd end by second gear mechanism, so that second motor
The radial direction opposite side of axis where being arranged in the engine and planet row.
4. hybrid vehicle triple axle planet combined hybrid system according to claim 3, it is characterised in that first electricity
Axis is parallel with axis where planet row with the engine where axis, the second motor where machine.
5. a kind of hybrid vehicle, it is characterised in that including a kind of triple axle planet combined hybrid system, the combined hybrid system includes
Engine, planet row, the first motor, the second motor and system output shaft, sun gear, planet carrier and gear ring in the planet row
In to have one be first end, one is second end, and one is the 3rd end, and first motor connects the first end, described the
One end connects housing by brake, and the engine connects the second end, and second motor connects institute by clutch
The 3rd end is stated, the 3rd end connects the system output shaft.
6. hybrid vehicle according to claim 5, it is characterised in that the first end is sun gear, and second end is
Planet carrier, the 3rd end are gear ring.
7. the hybrid vehicle according to claim 5 or 6, it is characterised in that first motor passes through first gear
Mechanism connects the first end, so that first motor is arranged in the radial direction one of engine and planet row place axis
Side, the clutch connects the 3rd end by second gear mechanism, so that second motor is arranged in the engine
With the radial direction opposite side of axis where planet row.
8. hybrid vehicle according to claim 7, it is characterised in that axis, the second electricity where first motor
Axis is parallel with axis where planet row with the engine where machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721125620.3U CN207345474U (en) | 2017-09-04 | 2017-09-04 | Hybrid vehicle and its triple axle planet combined hybrid system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721125620.3U CN207345474U (en) | 2017-09-04 | 2017-09-04 | Hybrid vehicle and its triple axle planet combined hybrid system |
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| CN207345474U true CN207345474U (en) | 2018-05-11 |
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ID=62413351
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790774A (en) * | 2018-07-12 | 2018-11-13 | 杭州休伦科技有限公司 | Multimode hybrid power system based on single planetary row and its control method |
| CN109421511A (en) * | 2017-09-04 | 2019-03-05 | 郑州宇通客车股份有限公司 | A kind of hybrid vehicle and its triple axle planet combined hybrid system |
| CN109624977A (en) * | 2018-12-19 | 2019-04-16 | 吉林大学 | A kind of cruise mode control method of hybrid vehicle |
| CN111231647A (en) * | 2018-11-28 | 2020-06-05 | 郑州宇通客车股份有限公司 | Planet series-parallel system and vehicle |
| CN108790774B (en) * | 2018-07-12 | 2024-06-04 | 杭州休伦科技有限公司 | Multi-mode hybrid power system based on single planetary gear set and control method thereof |
-
2017
- 2017-09-04 CN CN201721125620.3U patent/CN207345474U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109421511A (en) * | 2017-09-04 | 2019-03-05 | 郑州宇通客车股份有限公司 | A kind of hybrid vehicle and its triple axle planet combined hybrid system |
| CN108790774A (en) * | 2018-07-12 | 2018-11-13 | 杭州休伦科技有限公司 | Multimode hybrid power system based on single planetary row and its control method |
| CN108790774B (en) * | 2018-07-12 | 2024-06-04 | 杭州休伦科技有限公司 | Multi-mode hybrid power system based on single planetary gear set and control method thereof |
| CN111231647A (en) * | 2018-11-28 | 2020-06-05 | 郑州宇通客车股份有限公司 | Planet series-parallel system and vehicle |
| CN109624977A (en) * | 2018-12-19 | 2019-04-16 | 吉林大学 | A kind of cruise mode control method of hybrid vehicle |
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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |