CN104760494A - Single-mode combined power split-flow type hybrid power system - Google Patents
Single-mode combined power split-flow type hybrid power system Download PDFInfo
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- CN104760494A CN104760494A CN201510149314.2A CN201510149314A CN104760494A CN 104760494 A CN104760494 A CN 104760494A CN 201510149314 A CN201510149314 A CN 201510149314A CN 104760494 A CN104760494 A CN 104760494A
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- 238000010248 power generation Methods 0.000 abstract 1
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- 238000006243 chemical reaction Methods 0.000 description 7
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- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 2
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Abstract
Disclosed is a single-mode combined power split-flow type hybrid power system. The single-mode combined power split-flow type hybrid power system comprises an engine, an input shaft, locking devices, a planetary gear train, first motors, second motors, an inverter, a power battery and output gears. The planetary gear train comprises a front-row sun gear, a planetary carrier, front-row gear rings, front-row planetary gears, rear-row gear rings and rear-row planetary gears, wherein each front-row planetary gear and the corresponding rear-row planetary gear are two gears which are manufactured on the same shaft. According to the invention, the deceleration from the second motors to output part gear rings is low, the requirement for the rotating speed of the second motors can be reduced, and miniaturization of the second motors is facilitated. When the single-mode combined power split-flow type hybrid power system is in a parking charging mode, the second motors can participate in power generation so that the higher charging current can be provided, and the power battery can be quickly charged. When the single-mode combined power split-flow type hybrid power system is in a purely electric driving mode, both the first motors and the second motors can participate in driving so that a vehicle can adapt to more working conditions in the purely electric driving mode.
Description
Technical field
The present invention relates to a kind of power drive system of motor vehicle driven by mixed power, particularly a kind of single mode hybrid power by-pass type hybrid power system.
Background technology
The typical version of current series parallel hybrid power vehicle mainly contains Toyota's hybrid power system (THS), general senior hybrid power system (AHS) and four lucky axle planet row (FSPG) hybrid power systems.Wherein Toyota's hybrid power system (THS) can only realize a kind of pattern of input type power dividing, and drive motor is directly connected to output gear ring, higher to its performance requriements, need select the motor that power grade is higher.General senior hybrid power system (AHS) majority adopts three rows of planetary gear mechanisms to carry out power dividing, needs to control multiple power-transfer clutch and mechanical brake to carry out pattern switching, causes its complex structure, to control difficulty large.The drive motor that four lucky axle planet row (FSPG) hybrid power systems adopt is comparatively large to the transmitting ratio of output gear ring, need adopt the motor that rated speed of rotation is higher; In addition, the power of drive motor need through after arrange sun wheel, after rank star-wheel, three gears meshing between front-seat satellite gear and gear ring just can be passed to output, engagement link is more, have impact on driving efficiency to a certain extent.As can be seen here, in the art, the power drive system of motor vehicle driven by mixed power, especially the structure of its dynamic coupling device need be improved.
Summary of the invention
The object of this invention is to provide a kind of single mode hybrid power by-pass type hybrid power system.
The present invention is made up of driving engine, input shaft, mechanical brake, planetary gear train, motor, No. two motors, inverter, electrokinetic cell and output gears.Described planetary gear train comprises front-seat sun wheel, pinion carrier, front-seat gear ring, front-seat satellite gear, rear ring gear and rear seniority among brothers and sisters star-wheel, and wherein front-seat satellite gear and rear seniority among brothers and sisters star-wheel are two gears of processing on same axis.Described driving engine is connected with pinion carrier by input shaft; Described front-seat sun wheel, front-seat satellite gear, front-seat gear ring engage successively, and wherein front-seat satellite gear is set in pinion carrier rotationally; Described rear seniority among brothers and sisters star-wheel and rear ring gear engagement, wherein rank star-wheel afterwards and be set in pinion carrier rotationally, and be coaxially connected with front-seat satellite gear; A described motor is connected with front-seat sun wheel; Described No. two motors are connected with rear ring gear; Described electrokinetic cell is electrically connected with a motor, No. two motors respectively by inverter; Described mechanical brake one end is connected with input shaft, and the other end is fixed on vehicle frame; Described output gear and front-seat gear ring are coaxially connected.
Dynamic coupling device of the present invention belongs to 3K-H formula planetary gear train, if the ratio of number of teeth of front-seat gear ring and front-seat sun wheel is k1, the theoretical ratio of number of teeth of rear ring gear and rear row's sun wheel is k2.As preferably, make k1<k2, therefore native system is four node systems comprising three input nodes and an output node, belongs to combined type power dividing system.
As preferably, the number of described front-seat satellite gear and rear seniority among brothers and sisters star-wheel is 3 to 4, and in the uniform arrangement of circumferencial direction, is conducive to the uniform stressed of whole planetary gear train.
Compared with prior art the invention has the beneficial effects as follows:
1. the present invention's No. two motors are smaller to the deceleration of output gear ring, can reduce the speed demand to No. two motors, be conducive to the miniaturization of No. two motors;
2. the front-seat satellite gear of the present invention's No. two motors and rear seniority among brothers and sisters star-wheel are coaxially connected, and can reduce compared to four lucky axle planet row (FSPG) hybrid power systems and once engage link, driving efficiency is higher;
3. the present invention's No. two motors under parking charge mode also can participate in generating, can provide larger charging current, can make electrokinetic cell fast charge;
4. the present invention all can participate in driving at pure electric drive mode next number motor and No. two motors, make vehicle can adapt to more operating mode in such a mode, and more electric-only mode and stronger pure electric drive ability make the present invention be equally applicable to plug-in hybrid vehicle.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is structure of the present invention composition and principle of work schematic diagram.
Fig. 2 is rod model figure of the present invention.
Fig. 3 is the power transmission line figure of parking engine starting pattern of the present invention.
Fig. 4 is that the present invention drives a vehicle the power transmission line figure of engine starting pattern.
Fig. 5 is the power transmission line figure of constant speed parking charge mode of the present invention.
Fig. 6 is the power transmission line figure of the quick parking charge mode of the present invention.
Fig. 7 is the power transmission line figure of the pure electric drive mode of low speed of the present invention.
Fig. 8 is the power transmission line figure of the pure electric drive mode of high speed of the present invention.
Fig. 9 is the power transmission line figure of the independent drive pattern of woolly type engine of the present invention.
Figure 10 is the power transmission line figure of the independent drive pattern of high speed engine of the present invention.
Figure 11 is the power transmission line figure of low speed power shunt mode of the present invention.
Figure 12 is the power transmission line figure of high-speed power shunt mode of the present invention.
The power transmission line figure of braking mode when Figure 13 is tail-off of the present invention.
The power transmission line figure of braking mode when Figure 14 is engine running of the present invention.
In figure: 1. driving engine, 2. input shaft, 3. mechanical brake, 4. front-seat sun wheel, 5. pinion carrier, 6. front-seat gear ring, 7. front-seat satellite gear, 8. rear ring gear, rank star-wheel 9., 10. No. two motors, No. 11. motors, 12. inverters, 13. electrokinetic cells, 14. output gears.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is explained in detail:
Refer to shown in Fig. 1, a kind of single mode hybrid power by-pass type hybrid power system, comprise driving engine 1, input shaft 2, mechanical brake 3, planetary gear train, a motor 11, No. two motors 10, inverter 12, electrokinetic cell 13 and output gears 14.Described planetary gear train comprises front-seat sun wheel 4, pinion carrier 5, front-seat gear ring 6, front-seat satellite gear 7, rear ring gear 8 and rear seniority among brothers and sisters star-wheel 9, and wherein front-seat satellite gear 7 and rear seniority among brothers and sisters star-wheel 9 are two gears of processing on same axis.Described driving engine 1 is connected with pinion carrier 5 by input shaft 2; Described front-seat sun wheel 4, front-seat satellite gear 7, front-seat gear ring 6 engage successively, and wherein front-seat satellite gear 7 is set in pinion carrier 5 rotationally; Described rear seniority among brothers and sisters star-wheel 9 and rear ring gear 8 engage, and wherein rank star-wheel 9 afterwards and are set in rotationally in pinion carrier 5, and be coaxially connected with front-seat satellite gear 7; A described motor 11 is connected with front-seat sun wheel 4; Described No. two motors 10 are connected with rear ring gear 8; Described electrokinetic cell 13 is electrically connected with a motor 11, No. two motors 10 respectively by inverter 12; Described mechanical brake 3 one end is connected with input shaft 2, and the other end is fixed on vehicle frame; Described output gear 14 is coaxially connected with front-seat gear ring 6.
Dynamic coupling device of the present invention belongs to 3K-H formula planetary gear train, and its rod model is as Fig. 2.Set driving engine 1 as ICE respectively, a motor 11 is MG1, No. two motors 10 are MG2, export as Output, front-seat sun wheel 4 is S1, and pinion carrier 5 is C, front-seat gear ring 6 is R1, rear ring gear 8 is R2, and the ratio of number of teeth of front-seat gear ring 6 and front-seat sun wheel 4 is k1, and the theoretical ratio of number of teeth of rear ring gear 8 and rear row's sun wheel is k2.As preferably, make k1<k2, therefore native system is four node systems comprising three input nodes and an output node, belongs to combined type power dividing system.
Working process of the present invention and principle as follows:
1. engine starting pattern
According to car load operation conditions, engine starting pattern is divided into parking engine starting and driving engine starting two spermotype, and wherein the power transmission line of parking engine starting pattern is as Fig. 3, and the power transmission line of driving engine starting pattern is as Fig. 4.
The common trait of two spermotypes is:
Mechanical brake 3 is separated; Electrokinetic cell 13 discharges, and a motor 11 works in a form of an electric motor, is mechanical energy by electric energy conversion, and the power of generation is delivered to driving engine 1 through front-seat sun wheel 4, pinion carrier 5 and input shaft 2, and driving engine 1 starts.
The difference of two spermotypes is:
Under parking engine starting pattern, front-seat gear ring 6 rotating speed is zero, and rear seniority among brothers and sisters star-wheel 9, rear ring gear 8 and No. two motors 10 dally.Under car engine start-up mode of being expert at, No. two motors 10 work in a form of an electric motor, be mechanical energy by electric energy conversion, the power of generation through rear ring gear 8, after rank star-wheel 9, front-seat satellite gear 7, front-seat gear ring 6 and output gear 14, be finally passed to driving wheel.
2. parking charge mode
Parking charge mode is mainly used in vehicle to carry out driving engine heat engine or waits for green light, the operating mode that electrokinetic cell 13 state-of-charge (SOC) value is lower.When electrokinetic cell 13 state-of-charge (SOC) value is lower but when normally can also export electric energy, adopt parking constant speed charge mode, power transmission line is as Fig. 5; When electrokinetic cell 13 state-of-charge (SOC) value is extremely low cause it normally cannot export electric energy time operating mode, adopt parking fast charge mode, power transmission line is as Fig. 6.
The common trait of two spermotypes is:
Mechanical brake 3 is separated; Driving engine 1 works, and power is passed to planetary gear train through input shaft 2, and changes mechanical energy, with the form work of electrical generator, is electric energy, is filled with electrokinetic cell 13 through inverter 12 by motor; Front-seat gear ring 6 and output gear 14 are fixed.
The difference of two spermotypes is:
Under parking constant speed charge mode, power is passed to a motor 11, motor 11 with the form work of electrical generator through pinion carrier 5 and front-seat sun wheel 4; Rear seniority among brothers and sisters star-wheel 9, rear ring gear 8 and No. two motors 10 dally.Under parking fast charge mode, power through pinion carrier 5, after rank star-wheel 9 and rear ring gear 8 is passed to No. two motors 10, No. two motors 10 with the form work of electrical generator; Front-seat sun wheel 4 and a motor 11 dally.
3. pure electric drive mode
Pure electric drive mode is mainly used in when electrokinetic cell 13 is in electric quantity consumption state, and the pure electronic zero-emission of vehicle travels.According to car load road horsepower demand, pure electric drive mode is divided into the pure electric drive of low speed and high speed pure electric drive two spermotype, and wherein the power transmission line of the pure electric drive mode of low speed is as Fig. 7, and the power transmission line of the pure electric drive mode of high speed is as Fig. 8.
The common trait of two spermotypes is:
Mechanical brake 3 engages; Driving engine 1, input shaft 2 and pinion carrier 5 is fixed; Electrokinetic cell 13 discharges, and motor works in a form of an electric motor, and be mechanical energy by electric energy conversion, the power of generation is finally passed to driving wheel through output gear 14.
The difference of two spermotypes is:
Under the pure electric drive mode of low speed, a motor 11 works in a form of an electric motor, is mechanical energy by electric energy conversion, and the power of generation, through front-seat sun wheel 4, front-seat satellite gear 7, front-seat gear ring 6 and output gear 14, is finally passed to driving wheel; Rear seniority among brothers and sisters star-wheel 9, rear ring gear 8 and No. two motors 10 dally.Under the pure electric drive mode of high speed, No. two motors 10 work in a form of an electric motor, be mechanical energy by electric energy conversion, the power of generation through rear ring gear 8, after rank star-wheel 9, front-seat satellite gear 7, front-seat gear ring 6 and output gear 14, be finally passed to driving wheel; Front-seat sun wheel 4 and a motor 11 dally.
4. the independent drive pattern of driving engine
According to car load operation conditions, the independent drive pattern of driving engine is divided into woolly type engine to drive separately driving separately two spermotypes with high speed engine.The independent drive pattern of woolly type engine is mainly used in vehicle underload and travels, car load road horsepower demand is less than the minimum power that driving engine can provide in efficient district, and the operating mode that electrokinetic cell 13 state-of-charge (SOC) value is lower when causing it normally cannot export electric energy, power transmission line is as Fig. 9; The independent drive pattern of high speed engine is mainly used in load in vehicle, and car load road horsepower demand is in operating mode during engine high-efficiency district, and power transmission line is as Figure 10.
The common trait of two spermotypes is:
Mechanical brake 3 is separated; Driving engine 1 works, and power, through input shaft 2, pinion carrier 5, front-seat satellite gear 7, front-seat gear ring 6 and output gear 14, is finally passed to driving wheel, and vehicle travels required all power and all comes from driving engine 1; Rear seniority among brothers and sisters star-wheel 9, rear ring gear 8 and No. two motors 10 dally.
The difference of two spermotypes is:
Under the independent drive pattern of woolly type engine, changes mechanical energy, with the form work of electrical generator, is electric energy by a motor 11, and the power part that driving engine 1 is exported is for driving vehicle to travel, and another part is filled with in electrokinetic cell 13 with the form of electric energy; Now vehicle is in electronic infinite variable speed state.Under the independent drive pattern of high speed engine, the rotating speed of a motor 11 and front-seat sun wheel 4 is zero, and the power that driving engine 1 exports is all for driving vehicle to travel.
5. power dividing pattern
According to car load operation conditions, power dividing pattern is divided into low speed power to shunt and high-speed power shunts two spermotypes.Low speed power shunt mode accelerates or climbing when being mainly used in vehicle low speed, and car load travel torque demand is greater than the operating mode of driving engine when the maximum torque that efficient district can provide, and power transmission line is as Figure 11; High-speed power shunt mode is mainly used in high vehicle speeds, and car load travels speed demand and is greater than the operating mode of driving engine when the maximum speed that efficient district can provide, and power transmission line is as Figure 12.
The common trait of two spermotypes is:
Mechanical brake 3 is separated; Driving engine 1 works, and power, through input shaft 2, pinion carrier 5, front-seat satellite gear 7, front-seat gear ring 6 and output gear 14, is finally passed to driving wheel; A motor 11 and No. two motors 10 are all in work, and vehicle is in electronic infinite variable speed state; Electrokinetic cell 13 is according to car load power demand determination charging and discharging state.
The difference of two spermotypes is:
Under low speed power shunt mode, the partial power that driving engine 1 exports, with the form work of electrical generator, is converted into electric energy by a motor 11; No. two motors 10 work in a form of an electric motor, be mechanical energy by electric energy conversion, produce power through rear ring gear 8, after rank star-wheel 9, front-seat satellite gear 7, front-seat gear ring 6 and output gear 14, be finally passed to driving wheel, jointly provide tractive force with driving engine 1.Under high-speed power shunt mode, the partial power that driving engine 1 exports, with the form work of electrical generator, is converted into electric energy by No. two motors 10, and is supplied to a motor 11; A motor 11 reverses work in a form of an electric motor, and be mechanical energy by electric energy conversion, the power of generation, through front-seat sun wheel 4, front-seat satellite gear 7, front-seat gear ring 6 and output gear 14, is finally passed to driving wheel, jointly provides tractive force with driving engine 1.
6. braking mode
When electrokinetic cell 13 is in normal working, regenerative brake can be carried out.According to car load operation conditions, braking mode when braking mode and engine running when braking mode is divided into tail-off.During tail-off, braking mode is mainly used in the braking under pure electric drive mode, and power transmission line is as Figure 13; During engine running, braking mode is mainly used in the braking under non-pure electric drive mode, and power transmission line is as Figure 14.
The common trait of two spermotypes is:
A motor 11 and No. two motors 10 all with the form work of electrical generator, and provide lock torque, and vehicle energy is converted into electric energy and is filled with in electrokinetic cell 13.
The difference of two spermotypes is:
When tail-off under braking mode, mechanical brake 3 engages, and driving engine 1 and pinion carrier 5 are fixed.When engine running under braking mode, mechanical brake 3 is separated, and driving engine 1 carries out anti-dragged brake, jointly provides lock torque with a motor 11 and No. two motors 10.
It is pointed out that when motor is not enough to provide required lock torque, vehicle will adopt regenerative brake and the coefficient Associated brake pattern of friction braking.
Claims (1)
1. a single mode hybrid power by-pass type hybrid power system, is characterized in that: be made up of driving engine (1), input shaft (2), mechanical brake (3), planetary gear train, motor (11), No. two motors (10), inverter (12), electrokinetic cell (13) and output gears (14); Described planetary gear train comprises front-seat sun wheel (4), pinion carrier (5), front-seat gear ring (6), front-seat satellite gear (7), rear ring gear (8) and rear seniority among brothers and sisters star-wheel (9), and wherein front-seat satellite gear (7) and rear seniority among brothers and sisters star-wheel (9) are two gears of processing on same axis; Described driving engine (1) is connected with pinion carrier (5) by input shaft (2); Described front-seat sun wheel (4), front-seat satellite gear (7), front-seat gear ring (6) engage successively, and wherein front-seat satellite gear (7) is set in pinion carrier (5) rotationally; Described rear seniority among brothers and sisters star-wheel (9) and rear ring gear (8) engagement, wherein rank star-wheel (9) afterwards and be set in rotationally in pinion carrier (5), and be coaxially connected with front-seat satellite gear (7); A described motor (11) is connected with front-seat sun wheel (4); Described No. two motors (10) are connected with rear ring gear (8); Described electrokinetic cell (13) is electrically connected with a motor (11), No. two motors (10) respectively by inverter (12); Described mechanical brake (3) one end is connected with input shaft (2), and the other end is fixed on vehicle frame; Described output gear (14) and front-seat gear ring (6) are coaxially connected.
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| CN201510149314.2A CN104760494A (en) | 2015-04-01 | 2015-04-01 | Single-mode combined power split-flow type hybrid power system |
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| CN201510149314.2A CN104760494A (en) | 2015-04-01 | 2015-04-01 | Single-mode combined power split-flow type hybrid power system |
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Cited By (4)
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| CN107599823A (en) * | 2017-10-19 | 2018-01-19 | 吉林大学 | Differential multimodal fusion power car drive system |
| CN107599821A (en) * | 2017-10-30 | 2018-01-19 | 吉林大学 | The speed of bimodulus six compares drive system of hybrid power vehicle |
| CN108407598A (en) * | 2017-10-24 | 2018-08-17 | 广西玉柴机器股份有限公司 | A kind of hybrid power system with limp-home module |
| CN110509777A (en) * | 2018-05-21 | 2019-11-29 | 上海汽车集团股份有限公司 | A kind of automobile, drive system and its control method |
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Application publication date: 20150708 |