CN101934720A - Hybrid power driving system and driving method thereof - Google Patents
Hybrid power driving system and driving method thereof Download PDFInfo
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- CN101934720A CN101934720A CN2009101084573A CN200910108457A CN101934720A CN 101934720 A CN101934720 A CN 101934720A CN 2009101084573 A CN2009101084573 A CN 2009101084573A CN 200910108457 A CN200910108457 A CN 200910108457A CN 101934720 A CN101934720 A CN 101934720A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
- F16H3/727—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path
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- General Engineering & Computer Science (AREA)
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- Electric Propulsion And Braking For Vehicles (AREA)
- Structure Of Transmissions (AREA)
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Abstract
The invention discloses a hybrid power driving system, which comprises an engine, a first motor generator, a second motor generator, an energy storing device, a drive mechanism, a clutch and a differential mechanism, wherein a rotor of the second motor generator is provided with a hollow structure; the differential mechanism is positioned in the hollow structure and comprises a first rotating element, a second rotating element and a third rotating element; the first rotating element is a planet carrier; the engine is connected to the first rotating element through the clutch; a rotor shaft of the first motor generator is connected with the second rotating element; a rotor shaft of the second motor generator is connected with the first rotating element; and the third rotating element is connected with the drive mechanism. The system at least works under the following working condition that: the engine is involved in driving and is operated in an oil consumption economical zone by adjusting the rotating speed of the first motor generator. The invention also provides a driving method of the hybrid power driving system. The hybrid power driving system can ensure that the engine is operated in the oil consumption economical zone, thereby better improving the fuel economy.
Description
Technical field
The present invention relates to the hybrid vehicle field, relate in particular to a kind of hybrid electric drive system and driving method thereof.
Background technology
Prior art discloses and has a kind ofly comprised driving engine by driving engine and motor-driven hybrid vehicle, motor, change-speed box and wheel drive shaft.Change-speed box comprises sun and planet gear and the free-wheel clutch with first to the 3rd rotating element.First rotating element (as sun wheel) of sun and planet gear is connected to the output shaft of driving engine, and second rotating element (as gear ring) is connected to the output shaft of motor, and the 3rd rotating element (as pinion carrier) is connected to wheel drive shaft.Free-wheel clutch is arranged between first rotating element and the driving engine, guarantees that driving engine rotates along a direction, drags engine inversion when avoiding the sun wheel counter-rotating.
According to technique scheme, vehicle can be driven jointly by driving engine and motor, by the driving engine independent drive, and by the motor independent drive.During by the motor independent drive, can make change-speed box at underdrive operating, thereby motor can provide enough propulsive efforts to come powered vehicle to travel at vehicle, be dragged by counter when free-wheel clutch avoids driving engine not work simultaneously.
On the basis of this technical scheme, can also between the gear ring of sun and planet gear and sun wheel, arrange power-transfer clutch, perhaps between gear ring and case of transmission, arrange drg, perhaps between gear ring and sun wheel, arrange free-wheel clutch, perhaps between gear ring and wheel drive shaft, arrange free-wheel clutch, or the like, to satisfy different vehicle design requirements.
In above-mentioned each technical scheme, can realize different vehicular drive patterns.But, the problem of its fuel economy when these technical schemes do not fully take into account driving engine participation work.
Summary of the invention
The present invention does not take into full account the problem of engine fuel economy when solving driving engine participation work in the hybrid electric drive system, a kind of hybrid electric drive system is provided, wherein when driving engine participated in driving, described driving engine can always move in the oil consumption economic zone.
A kind of hybrid electric drive system, this system comprises driving engine, first dynamotor, second dynamotor, the closed-center system that all links to each other with first dynamotor and second dynamotor, transmission device and power-transfer clutch, wherein, this system also comprises: box of tricks, the rotor of second dynamotor has hollow structure, described box of tricks is arranged in described second dynamotor, described box of tricks comprises first rotating element, second rotating element and the 3rd rotating element, described first rotating element is a pinion carrier, described driving engine is connected to described first rotating element by described power-transfer clutch, the rotor shaft of first dynamotor links to each other with described second rotating element, the rotor shaft of second dynamotor links to each other with described first rotating element, described the 3rd rotating element links to each other with transmission device, this drive system is at least functioning in following operating mode: driving engine participates in driving, by regulating the rotating speed of first dynamotor, make driving engine move in the oil consumption economic zone.
The present invention also provides a kind of driving method of hybrid electric drive system, wherein this drive system is according to drive system of the present invention, this method comprises that the described drive system of control is at least functioning in following operating mode: described driving engine participates in driving, by regulating the rotating speed of first dynamotor, make driving engine move in the oil consumption economic zone.
For driving engine, according to characteristic performance curve, each driving engine has definite oil consumption economic zone, and it is corresponding with range of engine speeds.When engine operation during in its oil consumption economic zone, fuel oil is most economical, oil consumption is minimum.
In technique scheme, described driving engine is connected to described first rotating element by described power-transfer clutch, described drg links to each other with described second rotating element by the rotor shaft of first dynamotor, the rotor shaft of described second dynamotor links to each other with described first rotating element, and described the 3rd rotating element links to each other with transmission device.Therefore,,, can control the rotating speed of driving engine, always make it, thereby reduce the oil consumption of driving engine better in the operation of oil consumption economic zone by controlling the rotating speed of first dynamotor according to the rotation speed relation between three rotating elements of box of tricks.
Description of drawings
Fig. 1 is a kind of embodiment structural representation of hybrid electric drive system of the present invention;
Fig. 2 is the scheme drawing of rotation speed relation between expression left half axle gear, pinion carrier and the right axle shaft gear according to one embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the present invention are elaborated.
According to one embodiment of the present invention, as shown in Figure 1, a kind of hybrid electric drive system, this system comprises driving engine 1, first dynamotor 8, second dynamotor 4, the closed-center system 3 that all links to each other with first dynamotor 8 and second dynamotor 4, transmission device 6 and power-transfer clutch 2, wherein, this system also comprises: box of tricks 5, the rotor of second dynamotor 4 has hollow structure, box of tricks 5 is arranged in second dynamotor 4, box of tricks 5 comprises first rotating element 51, second rotating element 52 and the 3rd rotating element 53, first rotating element 51 is a pinion carrier, driving engine 1 is connected to first rotating element 51 by power-transfer clutch 2, the rotor shaft of first dynamotor 8 links to each other with second rotating element 52, the rotor shaft of second dynamotor 4 links to each other with first rotating element 51, the 3rd rotating element 53 links to each other with transmission device 6, this drive system is at least functioning in following operating mode: driving engine 1 participates in driving, by regulating the rotating speed of first dynamotor 8, make driving engine 1 move in the oil consumption economic zone.
Further, this drive system also comprises drg 9, and drg 9 links to each other with second rotating element 52 by the rotor shaft of first dynamotor 8.
Second rotating element 52 can be left half axle gear or right axle shaft gear, and the 3rd rotating element 53 can be right axle shaft gear or left half axle gear.
As a kind of embodiment, second rotating element 52 is a left half axle gear, and the 3rd rotating element 53 is the right axle shaft gear.Pinion carrier is connected with the output shaft of driving engine 1 by power-transfer clutch 2, and pinion carrier also links to each other with the rotor shaft of second dynamotor 4 simultaneously.The rotor shaft of the pinion carrier and second dynamotor 4 can link together by various suitable manner, for example the shell of box of tricks and the rotor shaft of second dynamotor 4 are made of one, when second dynamotor 4 rotates, can drive pinion carrier like this and rotate, when pinion carrier is rotated, also can drive second dynamotor 4 simultaneously and rotate.Left half axle gear links to each other with drg by the rotor shaft of first dynamotor 8, thereby for example passes through the rotor shaft of first dynamotor 8 is prolonged being connected of realization and left half axle gear and drg 9.At this moment, the rotor shaft of first dynamotor 8 can have hollow structure, the transmission shaft that connects pinion carrier and power-transfer clutch 2 can pass the hollow rotor shaft of first dynamotor 8, thereby helps arranging the driving engine 1 and first dynamotor 8, effectively saves installing space.
Because the rotor of second dynamotor 4 has hollow structure, box of tricks 5 is arranged in second dynamotor, 4 inside and promptly is positioned at the hollow structure of its rotor shaft, thereby helps saving installing space, makes whole driving system structure compact more.
Driving engine 1 can adopt gasoline or diesel oil etc. to act as a fuel, and can pass through the outside outputting power of output shaft.
Closed-center system 3 is a controlled energy storage units, can be lithium cell, iron cell, Ni-MH battery, Ni-Cr battery etc.Closed-center system 3 of the present invention can also have external charge interface (not shown), and therefore drive system of the present invention also has the external power charging operating mode.That is be closed-center system 3 chargings, by the external charge interface.By this operating mode, charge period at low power consumption, for example evening or the late into the night, can the reasonable use civil power.And, utilize commercial power charged Billy with the fuel engines cost of electricity-generating will be low many, therefore reduced the vehicle operation cost, and reduced environmental pollution.
Further, between closed-center system 3 and two dynamotors, can also be connected with first power inverter and the second power inverter (not shown) respectively, first power inverter and second power inverter can carry out the beidirectional Power Conversion, thereby the conversion by the Power Conversion unit, two dynamotors can be converted to takeoff output with the electric energy that closed-center system 3 stores, simultaneously, two dynamotors can also be that electrical power storage is in closed-center system 3 with power conversion.
Transmission device 6 generally includes transmission shaft, retarder, diff and the semiaxis etc. of vehicle.Semiaxis links to each other with wheel 7, thereby can travel to wheel 7 and then powered vehicle transmission of power.
Control for convenience, drg 9 is preferably electric clipper control brake.
For driving engine, according to characteristic performance curve, each driving engine has definite oil consumption economic zone, and it is corresponding with range of engine speeds.
Fig. 2 is the scheme drawing of rotation speed relation between expression left half axle gear, pinion carrier and the right axle shaft gear according to one embodiment of the present invention.Wherein, N1 represents the rotating speed of first dynamotor 8; N2 represents the rotating speed of driving engine 1 or the driving engine 1 and second dynamotor 4; N3 represents the rotating speed that the input speed of transmission device 6 is promptly exported from box of tricks 5.The joint of each rotation speed relation connection lead is represented the rotating speed in driving engine 1 corresponding oil consumption economic zone among Fig. 2.Rotation speed relation between three rotating elements is: N1+N3=2N2.As shown in Figure 2, when Vehicle Speed is determined, the input speed of transmission device 6 is determined, because it is definite that driving engine 1 is operated in the rotating speed in oil consumption economic zone, according to the rotation speed relation between three rotating elements: N1+N3=2N2, can make the input speed of the rotating speed of rotating speed, driving engine 1 of the dynamotor 8 of winning and transmission device 6 satisfy rotation speed relation between three rotating elements by the rotating speed of regulating first dynamotor 8.The rotating speed of driving engine 1 is in the rotating speed in oil consumption economic zone at this moment.Therefore, technical scheme of the present invention can make driving engine 1 be operated in the oil consumption economic zone, thereby can reduce the oil consumption of driving engine 1 better, improves the fuel economy of whole drive system.
Further, as shown in Figure 2, when driving engine 1 was operated in the oil consumption economic zone, by regulating the rotating speed of first dynamotor 8, the rotating speed of transmission device 6 can gradually change in certain speed range, promptly can realize the infinite speed variation in the certain limit.When driving engine 1 during corresponding to other rotating speed, by regulating the rotating speed of first dynamotor 8, the rotating speed of transmission device 6 also can change thereupon, so just can realize infinite speed variation.Promptly this drive system can realize infinite speed variation.
The present invention also provides a kind of driving method of hybrid electric drive system, wherein drive system is above-mentioned drive system, wherein, this driving method comprises that this drive system of control is at least functioning in following operating mode: driving engine 1 participates in driving, by regulating the rotating speed of first dynamotor 8, make driving engine 1 move in the oil consumption economic zone.。
Further, this drive system also comprises drg 9, and drg 9 links to each other with second rotating element 52 by the rotor shaft of first dynamotor 8.
When vehicle ' needs bigger moment of torsion, as climbing or when giving it the gun, driving engine 1 and dynamotor powered vehicle jointly travel, and promptly this driving method comprises that also controlling this drive system is in one of following operating mode:
Series-parallel connection operating mode 1: travel by first dynamotor 8 and driving engine 1 common powered vehicle, power-transfer clutch 2 combinations this moment, drg 9 separates, also drive 8 generatings of second dynamotor simultaneously and give closed-center system 3 chargings, the rotating speed that can make the rotating speed of driving engine 1 to be in oil consumption economic zone by the rotating speed of regulating first dynamotor 8 this moment is that driving engine 1 is operated in the oil consumption economic zone, when driving engine 1 is operated in the oil consumption economic zone, by regulating the rotating speed of first dynamotor 8, the rotating speed of transmission device 6 can gradually change in certain speed range, promptly can realize the infinite speed variation in the certain limit;
Operating mode in parallel: travel by first dynamotor 8, second dynamotor 4 and driving engine 1 common powered vehicle, power-transfer clutch 2 combinations, drg 9 separates, the rotating speed that can make the rotating speed of driving engine 1 to be in oil consumption economic zone by the rotating speed of regulating first dynamotor 8 this moment is that driving engine 1 is operated in the oil consumption economic zone, when driving engine 1 is operated in the oil consumption economic zone, by regulating the rotating speed of first dynamotor 8, the rotating speed of transmission device 6 can gradually change in certain speed range, promptly can realize the infinite speed variation in the certain limit.
At this moment, this driving method comprises that also this drive system of control is in following operating mode:
Series-parallel connection operating mode 2: travel by second dynamotor 4 and driving engine 1 common powered vehicle, power-transfer clutch 2 combinations this moment, drg 9 separates, and also drives 8 generatings of first dynamotor simultaneously and gives closed-center system 3 chargings.
When the driving engine independent drive, this driving method comprises that also this drive system of control is in one of following operating mode:
Engine drive operating mode 1: vehicle is travelled by driving engine 1 independent drive under this operating mode, power-transfer clutch 2 combinations, drg 9 is in conjunction with (i.e. braking), driving engine 1 can also drive 4 generatings of second dynamotor and give closed-center system 3 chargings simultaneously, at this moment, second dynamotor 4 also can dally and promptly not generate electricity;
Engine drive operating mode 2: vehicle is by driving engine 1 independent drive vehicle ' under this operating mode, power-transfer clutch 2 combinations, drg 9 separates (promptly not braking), driving engine 1 can also drive first dynamotor 8 and second dynamotor, 4 co-generation of power and give closed-center system 3 chargings simultaneously, at this moment, first dynamotor 8 and second dynamotor 4 also can all dally and promptly not generate electricity, and perhaps the idle running of second dynamotor 4 is not generated electricity and first dynamotor, 8 generatings and give closed-center system 3 chargings.
When the energy in the closed-center system 3 was sufficient, drive system can be operated under the following pure electronic operating mode:
Pure electronic operating mode 1: by second dynamotor, 4 independent drive vehicle ', power-transfer clutch 2 separation this moment, drg 9 combinations;
Pure electronic operating mode 2: drive jointly by first dynamotor 8 and second dynamotor 4, power-transfer clutch 2 separation this moment, drg 9 separates.
Hybrid electric drive system of the present invention can also be in following generating operation mode:
The power generation in parking operating mode: driving engine 1 starts, power-transfer clutch 2 combinations, when drg 9 separates, driving engine 1 can drive first dynamotor 8 and 4 generatings of second dynamotor simultaneously, also can generate electricity by independent drive first dynamotor 8, when drg 9 in conjunction with the time, driving engine 1 can independent drive 4 generatings of second dynamotor;
Feedback generating operation mode 1: power-transfer clutch 2 separates, and drg 9 separates, and transmission device 6 drives first dynamotor 8 and 4 generatings of second dynamotor simultaneously;
Feedback generating operation mode 2: power-transfer clutch 2 separates, drg 9 combinations, and transmission device 6 drives 4 generatings of second dynamotor.
As mentioned above, because three rotating elements of box of tricks 5 i.e. first rotating element 51, second rotating element 52 link to each other with transmission device 6 with driving engine 1, first dynamotor 8 respectively with the 3rd rotating element 53, therefore, rotation speed relation between driving engine 1, first dynamotor 8 and transmission device 6 threes meets the rotation speed relation between three rotating elements of box of tricks 5, as shown in Figure 2.Therefore, by controlling the rotating speed of first dynamotor 8, can make driving engine 1, thereby can reduce the oil consumption of driving engine 1 better, improve fuel economy in the operation of oil consumption economic zone.
Claims (12)
1. hybrid electric drive system, this system comprises driving engine, first dynamotor, second dynamotor, the closed-center system that all links to each other with first dynamotor and second dynamotor, transmission device and power-transfer clutch, it is characterized in that, this system also comprises: box of tricks, the rotor of second dynamotor has hollow structure, described box of tricks is arranged in described hollow structure, described box of tricks comprises first rotating element, second rotating element and the 3rd rotating element, described first rotating element is a pinion carrier, described driving engine is connected to described first rotating element by described power-transfer clutch, the rotor shaft of first dynamotor links to each other with described second rotating element, the rotor shaft of second dynamotor links to each other with described first rotating element, described the 3rd rotating element links to each other with transmission device, this drive system is at least functioning in following operating mode: driving engine participates in driving, by regulating the rotating speed of first dynamotor, make driving engine move in the oil consumption economic zone.
2. drive system according to claim 1 is characterized in that described drive system also comprises drg, and described drg links to each other with described second rotating element by the rotor shaft of first dynamotor.
3. drive system according to claim 2 is characterized in that, described second rotating element is a left half axle gear, and described the 3rd rotating element is the right axle shaft gear.
4. the driving method of a hybrid electric drive system, wherein said drive system is a drive system according to claim 1, it is characterized in that, this driving method comprises that the described drive system of control is at least functioning in following operating mode: described driving engine participates in driving, by regulating the rotating speed of first dynamotor, make driving engine move in the oil consumption economic zone.
5. driving method according to claim 4 is characterized in that described drive system also comprises drg, and described drg links to each other with described second rotating element by the rotor shaft of first dynamotor.
6. driving method according to claim 5 is characterized in that, this driving method comprises that also the described drive system of control is in one of following operating mode:
Series-parallel connection operating mode 1: drive jointly by first dynamotor and driving engine, the power-transfer clutch combination, drg separates, and drives the generating of second dynamotor simultaneously, and make driving engine in oil consumption economic zone move by regulating the rotating speed of first dynamotor this moment;
Operating mode in parallel: drive jointly by first dynamotor, second dynamotor and driving engine, the power-transfer clutch combination, drg separates, and make driving engine in oil consumption economic zone move by regulating the rotating speed of first dynamotor this moment.
7. driving method according to claim 6 is characterized in that, satisfies following relational expression by regulating the rotating speed of first dynamotor, make the win rotating speed of dynamotor, the rotating speed of driving engine and the input speed of transmission device:
N1+N3=2N2, wherein N1 represents the rotating speed of first dynamotor, and N2 represents the rotating speed of driving engine, and N3 represents the input speed of transmission device.
8. driving method according to claim 7 is characterized in that, this driving method comprises that also the described drive system of control realizes infinite speed variation under series-parallel connection operating mode 1 and operating mode in parallel.
9. driving method according to claim 6 is characterized in that, this driving method comprises that also the described drive system of control is in following operating mode:
Series-parallel connection operating mode 2: drive jointly by second dynamotor and driving engine, the power-transfer clutch combination, drg separates, and drives the generating of first dynamotor simultaneously.
10. driving method according to claim 5 is characterized in that, this driving method comprises that also the described drive system of control is in one of following operating mode:
Engine drive operating mode 1: by the driving engine independent drive, power-transfer clutch combination, drg combination, engine drive second dynamotor generating simultaneously;
Engine drive operating mode 2: by the driving engine independent drive, the power-transfer clutch combination, drg separates, and this moment, driving engine also drove first dynamotor and the generating of second dynamotor simultaneously.
11. driving method according to claim 5 is characterized in that, this driving method comprises that also the described drive system of control is in one of following operating mode:
Pure electronic operating mode 1: by the second dynamotor independent drive, disengaging of clutch, drg combination;
Pure electronic operating mode 2: drive jointly by first dynamotor and second dynamotor, disengaging of clutch, drg separates.
12. driving method according to claim 5 is characterized in that, this driving method comprises that also the described drive system of control is in one of following operating mode:
The power generation in parking operating mode: engine starting, the power-transfer clutch combination, drg separates, and driving engine drives first dynamotor and the generating of second dynamotor simultaneously;
Feedback generating operation mode 1: disengaging of clutch, drg separates, and transmission device drives first dynamotor and the generating of second dynamotor simultaneously;
Feedback generating operation mode 2: disengaging of clutch, the drg combination, transmission device drives the generating of second dynamotor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910108457.3A CN101934720B (en) | 2009-06-30 | 2009-06-30 | Hybrid power driving system and driving method thereof |
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| CN200910108457.3A CN101934720B (en) | 2009-06-30 | 2009-06-30 | Hybrid power driving system and driving method thereof |
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| CN101934720B CN101934720B (en) | 2014-05-28 |
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| CN102166947A (en) * | 2011-03-10 | 2011-08-31 | 上海交通大学 | Multimode stepless speed-changing hybrid driving system |
| CN102381177A (en) * | 2011-08-18 | 2012-03-21 | 奇瑞汽车股份有限公司 | Electric four-drive hybrid system and control method thereof |
| CN106394224A (en) * | 2016-06-01 | 2017-02-15 | 中国第汽车股份有限公司 | Dual power input differential coupled continuously variable transmission system |
| CN107269781A (en) * | 2011-02-24 | 2017-10-20 | 杨泰和 | Controllable epicyclic wheel group arrangement of clutch and apply dynamical system |
| CN107546912A (en) * | 2017-08-15 | 2018-01-05 | 河海大学 | A kind of compound four-quadrant motor speed regulation system of differential planet gear |
| WO2018076893A1 (en) * | 2016-10-26 | 2018-05-03 | 联合汽车电子有限公司 | Power system of hybrid electric vehicle and power transmission method therefor |
| CN109334428A (en) * | 2018-11-19 | 2019-02-15 | 吉林省晟林汽车传动科技有限公司 | A kind of hybrid vehicle dedicated transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107269781A (en) * | 2011-02-24 | 2017-10-20 | 杨泰和 | Controllable epicyclic wheel group arrangement of clutch and apply dynamical system |
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| CN107546912B (en) * | 2017-08-15 | 2019-04-16 | 河海大学 | A kind of compound four-quadrant motor speed regulation system of differential planet gear |
| CN109334428A (en) * | 2018-11-19 | 2019-02-15 | 吉林省晟林汽车传动科技有限公司 | A kind of hybrid vehicle dedicated transmission |
| CN109334428B (en) * | 2018-11-19 | 2023-09-12 | 吉林省晟林汽车传动科技有限公司 | Transmission special for hybrid electric vehicle |
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| CN101934720B (en) | 2014-05-28 |
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