CN102815198B - Mixed power automobile driving system based on variable transmission - Google Patents
Mixed power automobile driving system based on variable transmission Download PDFInfo
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- CN102815198B CN102815198B CN201210306733.9A CN201210306733A CN102815198B CN 102815198 B CN102815198 B CN 102815198B CN 201210306733 A CN201210306733 A CN 201210306733A CN 102815198 B CN102815198 B CN 102815198B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The present invention provides a kind of mixed power automobile driving system based on variable transmission, including internal combustion engine, double mass flywheel, planetary gears, forward gear clutch, reverse gear brake, motor, electric machine controller, battery, stepless speed changing mechanism, gear reducer mechanism and differential assembly.Stepless speed changing mechanism includes driving pulley, driven pulley, metal tape, electric oil pump, and hybrid power stepless gear special is integrated into motor, planetary gears, forward gear clutch, reverse gear brake, gear reducer mechanism and differential assembly.Stepless speed changing mechanism cancels fluid torque-converter, combustion engine powered to be transferred to stepless speed changing mechanism by double mass flywheel；Integrated driving motor on the driving belt pulley shaft, and provide hydraulic system pressure using electric oil pump.The pure key technology that is electronic, cancelling the hybrid vehicles such as idling, engine displacement reduction, motor power-assisted, engine steady state operation, Brake energy recovery energy-conservation of its low speed can be realized preferably.
Description
Technical field
The invention belongs to field of hybrid electric vehicles, it is related to a kind of hybrid power using fuel oil and electric power energy as power source
Automobile driving system, the hybrid vehicle based on variable transmission for especially possessing pure electronic starting and driving functions drive
Dynamic system.
Background technology
Development energy-conservation and new-energy automobile have become the inevitable choice of China's energy strategy, and current emphasis is to promote pure electricity
Electrical automobile and plug-in hybrid-power automobile industrialization, non-plug-in hybrid-power automobile, energy-saving IC engine automobile are popularized,
It is horizontal to lift China's automobile industry overall technology.
Fast ratio of buncher can continuously change within the specific limits, if for hybrid vehicle transmission, can be with
According to whole vehicle state, engine working point is neatly adjusted, engine is operated in the high region of fuel efficiency, it is whole so as to improve
The fuel economy of car simultaneously reduces discharge.Buncher has turned into volume production hybrid vehicle vehicle biography with the most use at present
Dynamic scheme.From the point of view of current foreign applications exploitation actuality, the automatic transmission of hybrid vehicle is dynamic transmission integrated
Feature, i.e., motor and gearbox are integrated, the more compact structure of system, the transmission of power are more steady, control performance more
It is good, it is applied on the hybrid electric vehicle of most volume productions.
Most successful hybrid vehicle is Toyota Prius in the market, and its THS combined hybrid system uses bi-motor knot
Structure, while engine realizes that engine works all the time using the high Atkinson cycle of fuel efficiency by the control to motor
In high efficiency point, and the combined hybrid system also has pure motor driving function.But its power assembly is complicated, volume is big,
Cost is high.Another successfully hybrid electric vehicle of in the market is Honda Insight/Civic, and its IMA system architecture is simple, starts
Machine is in parallel with motor coaxle, and motor power-assisted ensure that power performance during acceleration；Load is improved using the engine of more small displacement
Rate and fuel efficiency；Idle stop function is realized using ISG motors, reduces oil consumption.But because rotor is with starting
Machine crankshaft is fixedly connected, and engine is rotated in tow during pure motor driving, unnecessary loss is produced, when not possessing long
Between, the function of high efficiency pure motor driving.
For example, patent document CN101152837A discloses a kind of hybrid drive.
The hybrid drive include engine, start generator, clutch, gear, dynamotor and
Energy-storage system.The rotor for wherein starting generator is connected to the output shaft of engine, and clutch, which is connected to, starts turning for generator
Between the input shaft of sub- axle and gear, the armature spindle of dynamotor is connected to the output shaft of gear, gear
Output shaft wheel is delivered to by transmission mechanism.Due to eliminating baroque power splitting mechanism, therefore the present invention
Hybrid drive is simple and compact for structure, and arrangement is relatively flexible.Further, since in the absence of the energy conversion of complexity, so
Energy ecology is high, and has preferable combination property, including power performance, fuel consumption and emission characteristic etc.
There is improvement.
For the hybrid drive when engine is operated alone, the power of engine is by starting generator, clutch
Device, gear and transmission mechanism are directly delivered to wheel；When dynamotor is operated alone, the power of dynamotor
Wheel is delivered to by the output shaft and transmission mechanism of gear；When engine and dynamotor drive jointly, two
The power of person is combined and through transmission mechanism on the output shaft of gear and is delivered to wheel；In car deceleration or braking
When, dynamotor carries out regenerative feedback braking as generator, and the inertia energy of vehicle is converted into electric energy.
The hybrid drive can realize the various functions of hybrid vehicle, especially efficient pure electronic
Driving functions, but the output torque of motor is without gear during pure motor driving, output torque is limited, for pure electronic
Breakaway torque is less than normal.In order to realize the function of idle stop, the engine that resets automatically, the drive device engine with from
Startup generator is added between clutch, makes complicatedization.
The deficiency for summarizing the hybrid drive mainly has at following 2 points：Firstth, dynamotor torque without
Gear, which slows down to rise, to be turned round, and is not suitable for carrying out pure electronic starting；Secondth, employ dynamotor and start two electricity of generator
Machine, it is complicated.
Market in urgent need one kind is simple in construction, can realize the hybrid vehicle of the pure electronic starting of high efficiency and driving functions
Drive system.
The content of the invention
Present invention aim to overcome the deficiencies in the prior art, there is provided one kind is simple, is efficiently directed to hybrid power
The drive system of automobile, so as to realize the pure electronic starting of high efficiency and driving functions.
To solve above technical problem, the technical solution adopted in the present invention is：One kind is provided and is based on variable transmission
Mixed power automobile driving system, including internal combustion engine, motor, battery, reducing gear, differential assembly, variable speed
Transmission mechanism and changement, it is characterised in that
The changement includes planetary gears, forward gear clutch, reverse gear brake, and the changement is used to connect
Internal combustion engine and motor are connect, and can play a part of disconnecting internal combustion engine and motor in pure motor driving, so as to reach
To the function of efficiently travelling；
The internal combustion engine is connected with the planet carrier of the planetary gears, and can be by the forward gear clutch
The function of the advance and reversing under engine mode is realized in disconnection, Engagement Control with reverse gear brake；
Described motor one end is connected with the sun gear of planetary gears, the other end and the continuously variable transmission machine
The driving pulley of structure is connected, and is connected by an electric machine controller with the battery to provide power, when vehicle travels demand work(
When rate is small, pure motor driving is carried out using motor-driven vehicle, the car-backing function of low-power requirements is directly anti-by motor
Turn to realize.
It is further characterized in that, the infinitely variable speed gearing provides oil pressure using electric oil pump to electrohydraulic servo system,
So that during low speed pure motor driving, motor rotating speed is assisted, electric oil pump from during zero is gradually increasing without internal combustion engine
Pressure can be provided directly to hydraulic system, driving torque smoothly can be transferred to driven pulley from driving pulley, then drive
Vehicle travels.
In order to realize pure electronic car-backing function, the motor is the desk permanent-magnet electricity with Double-directional rotary function
Machine, the rated power of the motor is 10~15 kilowatts, and the battery uses lithium-ion electric of the capacity for 5~10 kilowatt hours
Pond.
In order to play damping effect, be advantageous to the work of engine, in addition to one group of double mass flywheel, the internal combustion engine lead to
The double mass flywheel is crossed with the planet carrier in planetary gears to be connected.
The technical solution adopted in the present invention is further discussed below below：Hybrid power vapour based on variable transmission
Motor vehicle drive system, including internal combustion engine, double mass flywheel, planetary gears, forward gear clutch, reverse gear brake, driving electricity
Mechanical, electrical machine controller, battery, stepless speed changing mechanism, gear reducer mechanism and differential assembly.The stepless speed changing mechanism includes master
Movable belt pulley, driven pulley, metal tape, electric oil pump, itself and motor, planetary gears, forward gear clutch, reverse gear system
Dynamic device, gear reducer mechanism and differential assembly are integrated into hybrid power stepless gear special.
The internal combustion engine passes through the planetary gears in one group of double mass flywheel and hybrid power stepless gear special
Planet carrier be connected, by the control to brakes and clutches realize under engine mode advance with reversing function.Institute
State motor and use disc-type permanent magnet motor, one end is connected with the sun gear of planetary gears, the other end and stepless speed changer
The driving pulley of structure is connected, and when vehicle traveling demand power is small, pure motor driving is carried out using motor-driven vehicle.It is low
The car-backing function of power demand is directly realized by motor reversal.Driven when vehicle demand power is moderate using pure internal combustion engine
It is dynamic, if battery electric quantity is relatively low, motor can be operated in generating state, charged the battery.Including if vehicle demand power is big
While combustion engine works auxiliary power is provided by motor.
Relative to traditional variable transmission vehicle, the system only needs to increase a motor and a Battery pack, and
After the fluid torque-converter for eliminating traditional buncher, the structure of power assembly is simple, compact, and operational reliability is high.This is
Operational mode of uniting is various, and pure motorized motions, engine and motor parallel drive, engine charging pattern, regeneration system can be achieved
Pattern etc. is operated alone in dynamic model formula, engine.
The system absorbs the advantages of single shaft parallel connection type mixed power system structure is simple, can conveniently realize motor and help
Power function, even if using small displacement engine, vehicle power performance still can be improved；The system overcomes list again simultaneously
Planetary gears, is especially placed between engine and motor, by controlling clutch by the deficiency of axle parallel connection type hybrid power
Device can realize the flexible connection of engine and motor with brake, be easy to implement efficient pure electronic starting and driving functions,
The power performance of fuel economy and vehicle can be significantly improved for hybrid vehicle.
Brief description of the drawings
Fig. 1 is the system structure diagram of the embodiment of the present invention.
In above-mentioned accompanying drawing：
1- internal combustion engines；2- double mass flywheels；3- planetary gears；4- forward gear clutch；5- reverse gear brakes；6- drives
Dynamic motor；7- electric machine controllers；8- batteries；9- electric oil pumps；10- driving pulleys；11- metal tapes；12- driven pulleys；13- subtracts
Fast mechanism；14- differential assemblies；15- hybrid power stepless gear specials.
Embodiment
Embodiments of the present invention are further described below in conjunction with the accompanying drawings.
Referring to the drawings shown in 1, a kind of hybrid vehicle drivetrain based on variable transmission described in the invention
System include internal combustion engine 1, double mass flywheel 2, planetary gears 3, forward gear clutch 4, reverse gear brake 5, motor 6,
Electric machine controller 7, battery 8, electric oil pump 9, driving pulley 10, metal tape 11, driven pulley 12, reducing gear 13, differential mechanism
Assembly 14.Parts wherein in addition to internal combustion engine 1, double mass flywheel 2, electric machine controller 7, battery 8 integrate composition
Hybrid power stepless gear special 15.
The internal combustion engine 1 passes through the planetary gear in one group of double mass flywheel 2 and hybrid power stepless gear special 14
The planet carrier of mechanism 3 is connected, and described one end of motor 6 is connected with the sun gear of planetary gears 3, the other end and the nothing
The driving pulley 10 of level variable transmission mechanism is connected, and is connected by an electric machine controller 7 with the battery 8 to provide power,
Driving pulley 10 drives driven pulley 12 by metal tape 11, and power is exported to car by reducing gear 13, differential assembly 14
Take turns to drive running car.
Internal combustion engine 1 can be gasoline engine or diesel engine, and be proposed with working cycles if from gasoline engine follows for Sydney Atkinson
The petrol engine of ring or turbo charged petrol engine.
Planetary gears 3 collectively forms changement with forward gear clutch 4, reverse gear brake 5.Pure motor driving
When, forward gear clutch 4, reverse gear brake 5 are in off-state, and planet carrier is in free state, and engine will not be dragged
Rotation, it is achieved thereby that efficient pure motor driving.
Stepless speed changing mechanism provides oil pressure using electric oil pump 9 to electrohydraulic servo system.Therefore, low speed pure motor driving
When, electric machine controller 7 controls the rotating speed of motor 6 from during zero is gradually increasing, because electric oil pump 9 can give hydraulic pressure system
System provides pressure, and driving torque smoothly can be transferred to driven pulley 12 from driving pulley 10, then drives vehicle traveling.
Motor 6 uses disc-type permanent magnet motor（Brshless DC motor or permagnetic synchronous motor）, there is Double-directional rotary
Function, car-backing function during pure motor driving are directly achievable by motor reversion.Vehicle traveling demand power will when low
Using pure motor driving.Compared with pure electric automobile, the power of motor and battery capacity of hybrid vehicle of the present invention can
Corresponding to reduce, the characteristics of for the hybrid vehicle, the rated power of motor is typically selected in 10-15 kilowatts, is that this is supporting
Battery 5-10kw.h lithium ion battery.
Internal combustion engine 1 is connected by double mass flywheel 2 with planetary gears 3.Double mass flywheel can play the work of vibration damping
With being advantageous to the work of engine.When vehicle traveling demand power it is moderate, will use internal combustion engine mode, now control before
Enter to keep off clutch 4 to engage, it is combustion engine powered to arrive driving pulley 10 again to planetary gears by double mass flywheel, through stepless change
Fast mechanism bending moment rear-guard motor-car traveling.Under operating mode of internal combustion engine, if desired implement reversing, then control forward gear clutch 4
Disconnect, reverse brake 5 is engaged, and bull gear is fixed, and torque is transferred to sun gear from planet carrier, while turns to change, so as to real
Existing car-backing function.
Mixed power automobile driving system of the present invention is when vehicle traveling demand power is big, in the same of motor-powered vehicle
When, electric machine controller 7 controls motor 6 to be operated in motoring condition, and both drive vehicle to travel jointly.
Under operating mode of internal combustion engine, when the electricity of battery 8 is less than certain lower limit, electric machine controller 7 controls motor 6 will
Generating state is operated in, a part for the offer power of internal combustion engine 1 will serve to battery 8 and charge.
When vehicle deceleration or braking, electric machine controller 7 controls motor 6 to be operated in generating state, is filled to battery 8
Electricity, mechanical energy is converted into electric energy, realizes Brake energy recovery.
Mixed power automobile driving system of the present invention improves low speed by the high efficiency pure motor driving of motor 6
（Low-power requirements）Fuel economy during traveling.Use operating mode of internal combustion engine during mid power demand, while by stepless change
Fast ratio of fast device is matched according to Best Economy rule, and fuel efficiency is higher all the time when making the work of internal combustion engine 1.Internal combustion engine 1
During work, consider to allow motor 6 to be operated in generating state if the electricity of battery 8 is less than certain lower limit, improve the same of engine load rate
When maintain the relative equilibrium of battery electric quantity, be optimal the gross efficiency of vehicle dynamical system.During significant power demand, internal combustion engine
The power of auxiliary is provided while 1 work by motor 6, preferably meets the power performance requirement of vehicle traveling.
Generally speaking, mixed power automobile driving system of the present invention is simple in construction, and the various of hybrid vehicle can be achieved
Function, and can preferably meet requirement of the hybrid vehicle to fuel economy and dynamic property, it is especially suitable for inserting
Electric-type hybrid vehicle.
Claims (3)
1. a kind of mixed power automobile driving system based on variable transmission, including internal combustion engine (1), motor (6), electricity
Pond (8), reducing gear (13), differential assembly (14), infinitely variable speed gearing and changement, it is characterised in that
The changement includes planetary gears (3), forward gear clutch (4), reverse gear brake (5)；
The internal combustion engine (1) is connected with the planet carrier of the planetary gears (3), and can be by the drive shift clutch
The function of the advance and reversing under engine mode is realized in the disconnection of device (4) and reverse gear brake (5), Engagement Control；
Described motor (6) one end is connected with the sun gear of planetary gears (3), the other end and the variable transmission
The driving pulley (10) of mechanism is connected, and is connected by an electric machine controller (7) with the battery (8) to provide power, when whole
When car traveling demand power is small, pure motor driving is carried out using motor-driven vehicle, the car-backing function of low-power requirements is straight
Connected motor reversal realization；
The changement, motor (6), infinitely variable speed gearing, reducing gear (13), differential assembly (14) are integrated
The special ST of hybrid power (15) is formed together；The infinitely variable speed gearing uses electric oil pump (9)
Oil pressure is provided to electrohydraulic servo system；
When vehicle deceleration or braking, electric machine controller (7) control motor (6) is operated in generating state, is filled to battery (8)
Electricity, mechanical energy is converted into electric energy, realizes Brake energy recovery.
2. the mixed power automobile driving system according to claim 1 based on variable transmission, it is characterised in that institute
It is the disc-type permanent magnet motor with Double-directional rotary function to state motor (6), the rated power of the motor (6) for 10~
15 kilowatts, the battery (8) uses lithium ion battery of the capacity for 5~10 kilowatt hours.
3. the mixed power automobile driving system based on variable transmission according to any one in claim 1~2,
Characterized in that, also including one group of double mass flywheel (2), the internal combustion engine (1) passes through the double mass flywheel (2) and planet tooth
Planet carrier in wheel mechanism (3) is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210306733.9A CN102815198B (en) | 2012-08-27 | 2012-08-27 | Mixed power automobile driving system based on variable transmission |
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| CN201210306733.9A CN102815198B (en) | 2012-08-27 | 2012-08-27 | Mixed power automobile driving system based on variable transmission |
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| CN102815198A CN102815198A (en) | 2012-12-12 |
| CN102815198B true CN102815198B (en) | 2017-11-28 |
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| CN103527736B (en) * | 2013-10-23 | 2016-02-10 | 王亚 | There is a grade transition type variable transmission scheme |
| US20150307101A1 (en) * | 2014-04-28 | 2015-10-29 | Ford Global Technologies, Llc | Vehicle and method to control rolling engagements |
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| CN105196858B (en) * | 2014-06-09 | 2019-03-19 | 福建中传科技有限公司 | New-energy automobile double speed dual-mode power assembly |
| CN105059104B (en) * | 2015-07-31 | 2017-06-16 | 奇瑞汽车股份有限公司 | Mixed power automobile driving system and its engine start control method |
| CN105172571B (en) * | 2015-08-12 | 2017-12-12 | 奇瑞汽车股份有限公司 | A kind of mixed power automobile driving system and its driving method |
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| CN108099579A (en) * | 2018-01-24 | 2018-06-01 | 芜湖万里扬变速器有限公司 | A kind of hybrid variable-speed system |
| CN108621786B (en) * | 2018-05-30 | 2024-03-22 | 湖南科技大学 | Transmission system for pure electric automobile |
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| CN109611520A (en) * | 2018-12-30 | 2019-04-12 | 芜湖万里扬变速器有限公司 | Electro-motive vehicle stepless speed variator system |
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| CN110722974A (en) * | 2019-10-12 | 2020-01-24 | 芜湖万里扬变速器有限公司 | Hybrid power transmission system |
| CN110722975A (en) * | 2019-10-12 | 2020-01-24 | 芜湖万里扬变速器有限公司 | Hybrid power transmission |
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| CN112078385A (en) * | 2020-08-21 | 2020-12-15 | 江苏理工学院 | Electric automobile electromechanical flywheel hybrid power system and energy recovery control method thereof |
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| JP3859896B2 (en) * | 1999-04-07 | 2006-12-20 | 富士重工業株式会社 | Hybrid car |
| KR100774665B1 (en) * | 2006-09-21 | 2007-11-08 | 현대자동차주식회사 | Hybrid power train structure using a toroidal variator |
| CN100476253C (en) * | 2007-01-19 | 2009-04-08 | 重庆大学 | Multimode transmission system of mixing dynamical automobile |
| CN202192979U (en) * | 2011-07-27 | 2012-04-18 | 湖南江麓容大车辆传动股份有限公司 | Power transmission module |
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