CN100436184C - Parallel hybrid power electric automobile power transmission system - Google Patents
Parallel hybrid power electric automobile power transmission system Download PDFInfo
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- CN100436184C CN100436184C CNB200510019887XA CN200510019887A CN100436184C CN 100436184 C CN100436184 C CN 100436184C CN B200510019887X A CNB200510019887X A CN B200510019887XA CN 200510019887 A CN200510019887 A CN 200510019887A CN 100436184 C CN100436184 C CN 100436184C
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- 239000002360 explosive Substances 0.000 claims description 6
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The present invention relates to a parallel hybrid power electric automobile power transmission system which comprises an internal combustion engine (a gasoline engine or a diesel engine), a hydraulic automatic speed changing drive bridge, a controller and an electric machine, wherein the engine drives wheels through the hydraulic automatic speed changing drive bridge; a drive shaft of the electric machine is coupled with a main speed reducer of the hydraulic automatic speed changing drive bridge; the engine, a hydraulic speed changer of the hydraulic automatic speed changing drive bridge, the electric motor, and a battery of the electric motor are all controlled by a controller. The power transmission system can realize the smooth switchover between the sole work and the simultaneous work of the engine power and the electric machine power through the control of the hydraulic automatic speed changing drive bridge and the rotary speed of the electric machine by the controller. The power transmission system can realize the work states that the engine solely works, the electric machine solely works as an electric motor, the electric machine solely work as the engine, the engine and the electric machine work at the same time, the braking energy is used for generating electricity, etc. according to the requirements of different work conditions.
Description
Technical field
The present invention relates to the power drive system of automobile, be specifically related to the power drive system of the power drive system of mixed power electric car, particularly parallel hybrid electric vehicle.
Background technology
The status of electronlmobil in the future world auto-industry is self-evident, the present annual oil that consumes the world 46% of automobile, American-European urban air pollution 60% from motor vehicle exhaust emission.Hybrid vehicle has advantages such as low exhaust pollution, low noise and saving oil resources, and it is advanced, modern transport facility.It is generally acknowledged: mixed power electric car, be meant and in same automobile, adopted electrical motor and driving engine simultaneously as its engine installation, control system by the advanced person cooperates two kinds of engine installation organic coordinations, the realization optimum capacity distributes, and reaches low energy consumption, the low pollution and supermatic new automobile.
According to the connection mode of power system, the mixed power electric car of current development can be divided into 3 classes: series hybrid power electric vehicle, parallel hybrid electric vehicle, series parallel hybrid power electronlmobil.
As shown in figure 11, existing parallel connection type hybrid power system is to be composed in parallel by explosive motor and electrical motor, and driving engine and electrical motor can utilize torque coupling device, transmission shifting mechanism drive wheels.The torque coupling device can realize driving engine through direct mechanical between transmission shifting mechanism and the drive wheel link to each other, electrical motor through direct mechanical between transmission shifting mechanism and the drive wheel link to each other, driving engine and electrical machinery is connected after again through mechanical multiple mechanical connection pattern such as link to each other between transmission shifting mechanism and the drive wheel.
In the existing parallel connection type hybrid power system, driving engine and electrical motor be matching and coordination ground drive wheels simultaneously, and this realizes by distributing means for power supply-torsion coupler.Therefore, the height of parallel connection type hybrid power system operating efficiency and workmanship except that the control system software and hardware, depend primarily on the structural shape of torsion coupler, i.e. the mode that is connected in parallel of driving engine and motor.Under normal operating condition, when driving engine during with the vehicle operating of greater efficiency task driven, electrical motor is not worked, and driving engine does not drive the electrical motor generating yet; When the power of powered vehicle operation less than driving engine during with the power of efficient way work output, driving engine drives generator for electricity generation simultaneously, to battery charge.When the vehicle brish acceleration, engine output torque is not enough, and battery provides electric energy to electrical motor, and machine operation is quickened for transmission shaft provides extra power to help vehicle.When vehicle travels with lower speed or with less gradient descent run and don't when needing generating, driving engine is in low efficiency region work, control system can make tail-off, so that save the energy, relies on the work of direct motor drive transmission shaft this moment.
The parallel type hybrid dynamic automobile has following characteristics:
1, saved independently electrical generator, two cover engine installations can drive individually or simultaneously, and the output gross horsepower can be the stack of two power systems, thereby single power system power can reduce, and helps arrangement of mechanism;
2, two overlap mechanically direct drive wheel of engine installations, so energy conversion efficiency improves the loss reduction;
3, two cover engine installations will switch power control system and mechanical switched system relative complex according to vehicle-state;
4, engine output torque all is that to carry out power and torque by power-transfer clutch and electrical motor output torque before change-speed box synthetic, and drive wheels is advanced then.Automobile in the process of moving because the continuous variation of operating mode, motor torque need be according to the difference of actual condition, sometimes separate with motor torque,, separating and the moment that is coupled sometimes with the motor torque coupling, can produce bigger impact, influence the ride comfort of vehicle '.
On the other hand, in existing single power automatic catch automobile power drive system technology, having a kind of is the automotive power transmission system of power with the explosive motor, and as shown in figure 12, it comprises driving engine, hydraulic automatic transaxle, controller; The hydraulic automatic transaxle comprises hydraulic automatic speed variator, main reduction gear and diff; Driving engine is by hydraulic automatic transaxle drive wheels; Driving engine, hydraulic automatic speed variator are controlled by controller.Because the hydraulic automatic transaxle that this system adopts is as driving medium with liquid, therefore can effectively alleviate the impact that produces with the moment that is coupled separating, again because adopted closing appliance, the torque of driving engine output realizes mechanical drive through lockup clutch, driving efficiency is higher, has good fuel economy.
Summary of the invention
Technical matters to be solved by this invention is: a kind of parallel hybrid power electric automobile power transmission system is provided, this system is parallel-connected to automobile driving wheel by explosive motor (spark ignition engine or diesel engine) and motor (electric generator/electric motor) by mechanical device, can be according to different operating mode demands, realize that driving engine works independently, motor as electrical motor work independently, motor as electrical generator work independently, multiple mode of operation such as driving engine and motor are worked simultaneously, and the ride comfort of vehicle ' is improved greatly.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of parallel hybrid power electric automobile power transmission system, it comprises explosive motor, hydraulic automatic transaxle, controller; Driving engine is by hydraulic automatic transaxle drive wheels; It also comprises motor, the main reduction gear coupling of the axle drive shaft of motor and hydraulic automatic transaxle; The battery of the hydraulic automatic speed variator of driving engine, hydraulic automatic transaxle, motor, motor is controlled by controller.
In the such scheme, the first order main reduction gear driven gear engagement in gear on the axle drive shaft of motor and the main reduction gear.
In the such scheme, the first order main reduction gear driven gear shaft in the axle drive shaft of motor and the main reduction gear docks.
Power drive system of the present invention, driving engine uses the hydraulic automatic speed variator transferring power of hydraulic automatic transaxle, motor uses the axle drive shaft transferring power, two kinds of power carries out coupling by the main reduction gear of hydraulic automatic transaxle, difference or common drive wheels, promptly driving engine is realized in parallel with motor by the hydraulic automatic speed variator of hydraulic automatic transaxle.
Power drive system of the present invention can be realized the drive motor generating simultaneously of driving engine independent drive wheel, electrical motor independent drive wheel, driving engine and the common drive wheels of electrical motor, driving engine and drive wheels is travelled, the glancing impact wheel carries out operating modes such as braking potential feedback by the anti-electric power generation that drags of main reduction gear under the effect of controller and control policy.
Power drive system of the present invention is realized the driving engine of mixed power electric car and the electromechanical coupling of motor by preposition forerunner's hydraulic automatic speed variator, alleviate and eliminate driving engine and electrical motor and begin to work simultaneously and withdraw from when working simultaneously and engage because of engine power or impact that the variation of time of releasing driving torque causes vehicle, realize the steady switching when driving engine and two kinds of power of motor work independently or work simultaneously, the ride comfort of vehicle ' is improved greatly, simultaneously not obvious again driving efficiency and the dynamic property of influencing.
When the motor-storage battery in the mixed power electric car drive system electrical accident partly occurs and during cisco unity malfunction, controller may command driving engine is that the driving system of power can continue to work independently, drive running car.
Owing to adopted closing appliance, after the torque coupling of driving engine and electrical motor output is finished, the torque of driving engine output realizes mechanical drive through lockup clutch, hydraulic automatic speed variator input (pump impeller) axle becomes rigid attachment with output (turbine) axle, driving efficiency is higher, has improved the moving velocity and the fuel economy of automobile.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1
Fig. 2 is the structured flowchart of system of the present invention
Fig. 3 is the fundamental diagram of controller
Fig. 4-9 determines the computer controlled diagram of circuit that car load is worked for controller under different mode.
Figure 10 is the structural representation of the embodiment of the invention 2
Figure 11 is the structured flowchart of existing parallel hybrid power electric automobile power transmission system
Figure 12 is the structured flowchart of existing single power automatic catch automobile power drive system
The specific embodiment
The embodiment of the invention 1 as shown in Figure 1, 2, it comprises explosive motor (spark ignition engine or diesel engine), hydraulic automatic transaxle, controller, motor (electric generator/electric motor); Driving engine is by hydraulic automatic speed variator, planetary gearbox, main reduction gear driving and driven gears at different levels, the diff drive axle drive wheels of hydraulic automatic transaxle; The main reduction gear coupling of the axle drive shaft of motor and hydraulic automatic transaxle, i.e. the engagement of first order main reduction gear driven gear in gear on the axle drive shaft of motor and the main reduction gear.
The battery of the hydraulic automatic speed variator of driving engine, hydraulic automatic transaxle, motor, motor is controlled by controller.
Parallel hybrid power electric automobile power transmission system of the present invention, can realize driving engine independent drive wheel, motor independent drive wheel, driving engine and motor drive wheels, driving engine while drive wheels and electrical generator, five kinds of mode of operations of wheel braking energy feedback generating simultaneously, its principle of work is:
1, engine driven wheel mode of operation
Engine crankshaft drives the hydraulic automatic speed variator pump impeller, driving gear pump simultaneously, power after hydraulic transmission, hydraulic automatic speed variator turbine drives planetary gearbox input shaft.Clutch with multiple laminated disc, drg, free-wheel clutch in the planetary gearbox carry out different particular combinations under the effect of hydraulic control system, change-speed box can obtain one grade, second gear, third gear, fourth gear and five kinds of speed ratios of reverse gear, by the gear on planet row's the pinion carrier, drive the driving and driven gear of main reduction gear, drive gear and wheel in the diff.Motor is excitation not, rotates freely, and the rotation to first order main reduction gear driven gear does not produce interference.This mode of operation is mainly used in moderate duty, full load mode and the reverse gear of automobile and travels.
2, wheel driving motor mode of operation
Driving engine is not worked, and hydraulic automatic speed variator and planetary gearbox all are in free state.Motor (electrical motor) drives first order main reduction gear driven gear shaft, drives gear and wheel in the diff.The wheel driving motor mode of operation can be used for vehicle starting, to reduce the exhaust emission that driving engine produces when the vehicle starting.
3, the common drive wheels mode of operation of driving engine and motor
Engine crankshaft drives the hydraulic automatic speed variator pump impeller, driving gear pump simultaneously, power after hydraulic transmission, hydraulic automatic speed variator turbine drives planetary gearbox input shaft.Planetary gearbox drives first order main reduction gear driven gear.Meanwhile, motor (electrical motor) drives first order main reduction gear driven gear shaft by its shaft gear, with the common drive wheels of driving engine.Because of electrical motor is permanent torque in main middle and slow speed of revolution scope, so, all driving engine is had the effect that increases torque when driving engine during in normal revolution scope, change-speed box put in the first speed, second gear, third gear, fourth gear.The mode of operation of driving engine and the common drive wheels of electrical motor is mainly used in car acceleration, and the deficiency of the operation torque compensation motor torque of electrical motor makes car load obtain better accelerating ability.
There is not this mode of operation during reverse gear.
4, driving engine while drive motor (electrical generator) and wheel mode of operation
Engine crankshaft drives the hydraulic automatic speed variator pump impeller, driving gear pump simultaneously, power after hydraulic transmission, hydraulic automatic speed variator turbine drives planetary gearbox input shaft.Clutch with multiple laminated disc, drg, free-wheel clutch in the planetary gearbox carry out different particular combinations under the effect of hydraulic control system, change-speed box can obtain one grade, second gear, third gear, four kinds of forward speed ratios of fourth gear, by the gear on planet row's the pinion carrier, drive the main reduction gear driven gear, drive gear and wheel in the diff.Meanwhile, driving engine drives electrical generator and generates electricity by first order main reduction gear driven gear.The mode of operation that driving engine drives electrical generator and wheel simultaneously is mainly used in two kinds of operating modes: SOC value of battery is low excessively, necessary electric energy supplement; When lower the and automobile of SOC value of battery is in underloading, be to improve engine operation efficient, improve its rate of load condensate.
There is not this mode of operation during reverse gear.
5, wheel braking energy feedback generating mode of operation
When automobile brake, make motor be in the electrical generator mode of operation, wheel generates electricity by diff, main reduction gear driven gear drawing generator, and electrical power storage is in storage battery.Because of the generating resistance, wheel is braked and is slowed down.
Controller in the embodiment of the invention 1 is made up of Motorola Power PC and peripheral circuit, as shown in Figure 3, controller is from signals such as starter, driving engine, motor, battery, hydraulic automatic speed variator, acceleration pedal and brake pedal input speed, the speed of a motor vehicle, voltage, electric current, mode of operations; To signals such as starter, combustion engine, motor, hydraulic automatic speed variator output startup, throttle opening, motor accelerator open degree, operating mode control, gears.
Because the characteristics that this parallel type hybrid dynamic driving system has, in car load when work, is according to the position of gear-change hand lever and Das Gaspedal, brake pedal status, controller determines that car load works under different patterns, its computer controlled diagram of circuit is shown in Fig. 4-9, wherein Fig. 4 is a main program, after the ignition lock of automobile was opened, controller was started working, according to gear-change hand lever position, acceleration pedal and brake pedal position, speed of a motor vehicle decision mode of operation.Fig. 5 is the control flow of vehicle starting pattern, generally all adopts the electrical motor starting, unless motor or battery have fault.Fig. 6 is an aero mode, and when the acceleration/accel of stepping on when acceleration pedal reached a certain value, motor was incorporated transmission system into and sent power, and auxiliary engine drives automobile.Fig. 7 is a cruise mode, when mainly to be automobile with medium above steady load travel, in conjunction with the battery SOC state, guarantees that driving engine moves at efficacious workaround.Fig. 8 is a deceleration mode, and when promptly automobile had braking requirement, wheel utilized the generating drag braking and reclaims braking energy by the generating of axle drive shaft dragging motor.Fig. 9 is the driving engine independent working mode, is mainly used in reverse gear and forces low gear, and motor does not participate in work.
The embodiment of the invention 2 as shown in figure 10, it comprises driving engine (spark ignition engine or diesel engine), hydraulic automatic transaxle, controller, motor (electric generator/electric motor); Driving engine is by hydraulic automatic speed variator, planetary gearbox, main reduction gear driving and driven gears at different levels, diff drive axle drive wheels; The coupling of the main reduction gear of the axle drive shaft of motor and hydraulic automatic transaxle, promptly the interior first order main reduction gear driven gear shaft of the axle drive shaft of motor and main reduction gear docks.
Claims (3)
1, a kind of parallel hybrid power electric automobile power transmission system, it comprises explosive motor, hydraulic automatic transaxle, controller; Driving engine is by hydraulic automatic transaxle drive wheels; It is characterized in that: it also comprises motor, the main reduction gear coupling of the axle drive shaft of motor and hydraulic automatic transaxle; The battery of the hydraulic automatic speed variator of driving engine, hydraulic automatic transaxle, motor, motor is controlled by controller.
2, the system as claimed in claim 1 is characterized in that: the first order main reduction gear driven gear engagement in gear on the axle drive shaft of motor and the main reduction gear.
3, the system as claimed in claim 1 is characterized in that: the first order main reduction gear driven gear shaft in the axle drive shaft of motor and the main reduction gear docks.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200510019887XA CN100436184C (en) | 2005-11-25 | 2005-11-25 | Parallel hybrid power electric automobile power transmission system |
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| CNB200510019887XA CN100436184C (en) | 2005-11-25 | 2005-11-25 | Parallel hybrid power electric automobile power transmission system |
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| CN1775577A CN1775577A (en) | 2006-05-24 |
| CN100436184C true CN100436184C (en) | 2008-11-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7762923B2 (en) * | 2006-12-01 | 2010-07-27 | Clark Equipment Company | Shift assisted braking for a power machine or vehicle |
| CN101254744B (en) * | 2007-12-28 | 2011-09-21 | 奇瑞汽车股份有限公司 | Hybrid electric vehicle complete vehicle system as well as multi-energy control system and control method thereof |
| CN104527400A (en) * | 2015-01-08 | 2015-04-22 | 江西东江机电有限公司 | Hybrid power device and electric car |
| CN108215771A (en) * | 2016-12-21 | 2018-06-29 | 天津市松正电动汽车技术股份有限公司 | A kind of hybrid electric drive system |
| CN106994902A (en) * | 2017-04-11 | 2017-08-01 | 苏州海格新能源汽车电控系统科技有限公司 | A kind of automobile dynamic system and its control method with energy discharge mechanism |
| CN110077425A (en) * | 2018-01-26 | 2019-08-02 | 金鹰重型工程机械有限公司 | Track takes turns the electric hybrid powertrain system of running device oil certainly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09289706A (en) * | 1996-02-21 | 1997-11-04 | Toyota Motor Corp | Hybrid car |
| US20010016165A1 (en) * | 2000-01-17 | 2001-08-23 | Eijirou Shimabukuro | Hybrid vehicle control device |
| CN1389358A (en) * | 2001-05-31 | 2003-01-08 | 陈清泉 | Mixed serial and parallel electric-vehicle driving system with epicyclic gear |
| JP2003018708A (en) * | 2001-06-29 | 2003-01-17 | Isuzu Motors Ltd | Parallel hybrid electric automobile |
| US20050164827A1 (en) * | 2004-01-23 | 2005-07-28 | Beaty Kevin D. | Hybrid powertrain system including smooth shifting automated transmission |
| JP2005291330A (en) * | 2004-03-31 | 2005-10-20 | Jatco Ltd | Oil passage structure of parallel hybrid vehicle |
-
2005
- 2005-11-25 CN CNB200510019887XA patent/CN100436184C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09289706A (en) * | 1996-02-21 | 1997-11-04 | Toyota Motor Corp | Hybrid car |
| US20010016165A1 (en) * | 2000-01-17 | 2001-08-23 | Eijirou Shimabukuro | Hybrid vehicle control device |
| CN1389358A (en) * | 2001-05-31 | 2003-01-08 | 陈清泉 | Mixed serial and parallel electric-vehicle driving system with epicyclic gear |
| JP2003018708A (en) * | 2001-06-29 | 2003-01-17 | Isuzu Motors Ltd | Parallel hybrid electric automobile |
| US20050164827A1 (en) * | 2004-01-23 | 2005-07-28 | Beaty Kevin D. | Hybrid powertrain system including smooth shifting automated transmission |
| JP2005291330A (en) * | 2004-03-31 | 2005-10-20 | Jatco Ltd | Oil passage structure of parallel hybrid vehicle |
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