CN100595085C - Plug-in type integrated actuating electric generator hybrid power car driving system - Google Patents
Plug-in type integrated actuating electric generator hybrid power car driving system Download PDFInfo
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- CN100595085C CN100595085C CN200810038540A CN200810038540A CN100595085C CN 100595085 C CN100595085 C CN 100595085C CN 200810038540 A CN200810038540 A CN 200810038540A CN 200810038540 A CN200810038540 A CN 200810038540A CN 100595085 C CN100595085 C CN 100595085C
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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 invention discloses a mixed power car drive system of a plugging type integrated starting generator in the technical field of vehicle engineering; wherein, an engine is coaxially connected with the integrated starting generator; the integrated starting generator is connected with the driving disc of an automatic clutch; the automatic clutch is connected with a planetary pearing by a drive motor; the planetary pearing is respectively connected with the drive motor and a main reducer-differential mechanism; the main reducer-differential mechanism is connected with a wheel by a drive axle; apower battery is respectively connected with a motor controller and an external power plug by cables; the motor controller is respectively connected with the integrated starting generator and the drive motor by cables; the outer gear ring of the planetary pearing is fixedly connected with a car frame; the invention maintains the traditional vehicle structure to the utmost extent and carries out optimization on the working points of the engine by a double-motor to lead the engine to run stably in an area with high efficiency and low discharge; the system of the invention is especially suitablefor the operation of urban low speed bus working condition.
Description
Technical field
The present invention relates to a kind of car driving system of Vehicle Engineering technical field, specifically is a kind of plug-in type integrated actuating electric generator hybrid power car driving system.
Background technology
Along with the reinforcement of the anxiety and the human environmental consciousness of world energy sources, safety, energy-saving and environmental protection become the theme of current development of automobile.Hybrid vehicle as one of new-energy automobile can address the above problem preferably.Hybrid vehicle is a kind of by driving engine and the common vehicle that drives of electric system.Wherein driving engine can be to use the multi-fuel combustion engine; Motor both can be that magneto-electric machine also can be an excitation electromotor, both can be that synchronous dynamo also can be an asynchronous dynamo.Plug-in hybrid-power automobile, promptly PHEV (Plug-in HybridVehicle) can use household outlet (for example 220V power supply) to battery charge in the advantage that has common hybrid vehicle and pure electric vehicle.The hybrid mode based on combustion engine is used in long-distance driving, and can use all-electric pattern under daily short distance motoring condition, accomplishes zero oil consumption and zero-emission.Therefore the plug-in hybrid car has higher fuel efficiency, has reduced the dependence to fossil fuel, has reduced the vehicle operation cost.
Find through literature search prior art, patent 03128810.3 discloses a kind of mixed power automobile driving system, provide a kind of than the conventional truck good economy performance, the discharging low, can adopt two kinds of different dynamic sources to drive, can realize the recovery of braking energy, improve the mixed power automobile driving system of engine efficiency.It comprises driving engine, front-wheel, storage battery, wheel hub electric motor, trailing wheel, electrical generator, back axle, and it provides the Preliminary Applications of hybrid power technology, but does not have the advantage of bigger performance hybrid power.
Summary of the invention
The object of the invention is at the deficiencies in the prior art, a kind of plug-in type integrated actuating electric generator hybrid power car driving system is provided, based on motor-driven, other additional energy is equipped with, can enlarge the continual mileage of hybrid vehicle by generator set, the purpose that on the basis of saving manufacturing and improvement cost to greatest extent, realizes saving fuel oil and guarantee the car load tractive performance, overcome hybrid vehicle driving mechanism in accessory drives, the deficiency of aspect such as rotary clutch in gearshift and the epicyclic gear transmission.
The present invention is achieved by the following technical solutions:
Plug-in type integrated actuating electric generator hybrid power car driving system involved in the present invention, comprise: wheel, main reduction gear-diff, sun and planet gear, drive motor, self-acting clutch, integrated actuating electric generator (being called for short ISG), driving engine, electric machine controller, battery management system, power battery pack, wherein: driving engine is connected with integrated actuating electric generator is coaxial, integrated actuating electric generator is connected with the self-acting clutch driving disc spacing pressing, self-acting clutch is connected with sun and planet gear by drive motor, sun and planet gear is connected with main reduction gear-diff with drive motor respectively, main reduction gear-diff links to each other with wheel by drive axle, power battery pack is connected with external power supply plug with electric machine controller respectively by cable, and electric machine controller is connected with drive motor with integrated actuating electric generator respectively by cable.The sun and planet gear external toothing is captiveed joint with vehicle frame.Wherein electric machine controller comprises drive motor controller and integrated actuating electric generator electric machine controller.
The present invention only increases a self-acting clutch on the basis of series hybrid-power, possess the advantage of series hybrid-power, has reduced the power of electrical generator and drive motor simultaneously; Because capacity of cell is bigger, the external charging function can satisfy travelling of low speed operating mode, thereby can reduce oil consumption and discharging; System architecture is simple, has avoided complicated speed change system, and self-acting clutch is ripe relatively, and control requires low.
The structural innovation part of the present invention has been to use sun and planet gear as the drive disk assembly between drive motor and the main reduction gear-diff joint institution, sun and planet gear has compact conformation, transmitting ratio is big, load-carrying capacity is big, stable drive and driving efficiency advantages of higher, dual planetary gear mechanism herein and the integrated actuating electric generator in the driving system, self-acting clutch and drive motor are united use, the purpose of power dividing and speed change can be realized simultaneously, and then hybrid electric vehicle engine can be realized, electrical motor, matched well between the power battery pack three and optimal control.
The present invention can also be provided with two grades of speed-changing mechanisms between sun and planet gear and main reduction gear-diff joint institution, the existence of two grades of speed-changing mechanisms has enlarged speed range, reduced requirement, made variable speed control more flexible the drive motor range of speed.
The plug-in hybrid car driving system that the present invention is above-mentioned comprises following multiple drive modes:
(1) pure electric drive mode: when the work of vehicle start or vehicle underload, SOC value of battery were low, drive motor worked independently, and battery provides electric energy for drive motor.Utilize the electric energy of battery to drive automobile, driving engine and ISG do not participate in work, only depend on drive motor to drive;
(2) tandem working pattern: in the work of vehicle start or vehicle underload, when SOC value of battery is low, ISG elder generation fire an engine, power-transfer clutch disconnects, engine power generation, drive motor powered vehicle.The tandem working pattern is generally worked under following several situations:
Between a, low regime, the high-power driving operating mode is as continuous climbing etc.;
B, battery power are lower than preset value, need be the timely electric energy supplement of battery
(3) drive pattern in parallel: optimize power, SOC value of battery when low at vehicle needs power greater than engine efficiency, power-transfer clutch is in conjunction with the common powered vehicle of rear engine, drive motor and integrated actuating electric generator.Low speed quickened and high velocity during this pattern worked in usually;
(4) driving engine independent drive pattern: in the vehicle power demand in engine efficiency optimization zone or battery when not having enough electric energy to offer machine operation, driving engine independent drive vehicle, drive motor, integrated actuating electric generator are not worked;
(5) engine drive driving power generation mode: when vehicle operating, if vehicle needs power less than engine efficiency optimize power, SOC value of battery is low, motor-powered vehicle then, drive motor is done electrical generator work and is absorbed energy to battery, regulate efficiency of engine and battery electric energy supplement with this, this pattern general work middling speed district (the engine power load is on the low side, and efficient is low);
(6) brake power generating pattern: when slowing down or sliding, drive motor is made electrical generator with absorbing vehicle energy to battery;
(7) stopping for charging pattern: utilize extraneous grid charging stake to charge the battery.
The present invention compares with existing series parallel hybrid power automobile; has following remarkable result: can realize the automatic start-stop of driving engine; functions such as electric boosted and high-efficiency high-power electric energy output; driving engine and integrated actuating electric generator constitute an in-vehicle generator set efficiently simultaneously; allow driving engine always work in the optimization operation point or the shutdown of a low oil consumption anti-emission carburetor in vehicle low speed run rider condition (as the city bus operating mode), the driving power of car load is provided by high-performance drive motor.In the operating mode of running at high speed, mechanical attachment between driving engine, drive motor and the wheel, the two power can be delivered to wheel by driving system, can be by the energy distribution of entire car controller, to realize other drive pattern except that pure electricity and tandem drive according to driving behavior and the definite car load of battery SOC (State Of Charge) value.This scheme has been continued to use the power system of a large amount of orthodox cars, can reduce manufacturing cost significantly like this.
The present invention has the control of hybrid power system of speed change system simple relatively, and the basic controlling strategy can be divided into four speed intervals, different intervals, and drive motor and engine drive load change to some extent.
The present invention has realized the purpose of power dividing and speed change, and then realized matched well and optimal control between driving engine, electrical motor, the power battery pack three, it is low to have reduced the vehicle operation cost, reduced fuel cost, reduced dependence to fossil fuel, the greenhouse gases and the various discharge of harmful gases that reduce have been improved the generator set efficient of electrical network simultaneously.Increase by two grades of speed-changing mechanisms and not only enlarged speed range, reduced requirement simultaneously, make variable speed control more flexible the drive motor range of speed.
Description of drawings
Fig. 1 embodiment of the invention 1 structural representation;
The transfer of energy course diagram of Fig. 2 embodiment of the invention 1 pure electric drive mode;
The transfer of energy course diagram of Fig. 3 embodiment of the invention 1 tandem drive pattern;
The transfer of energy course diagram of Fig. 4 embodiment of the invention 1 drive pattern in parallel;
The transfer of energy course diagram of Fig. 5 embodiment of the invention 1 driving engine independent drive pattern;
Fig. 6 embodiment of the invention 1 engine drive, the transfer of energy course diagram of drive motor power generation mode;
The transfer of energy course diagram of Fig. 7 embodiment of the invention 1 brake power generating pattern;
The transfer of energy course diagram of Fig. 8 embodiment of the invention 1 stopping for charging pattern;
Fig. 9 embodiment of the invention 1 basic controlling policy map;
Figure 10 embodiment of the invention 2 structural representations.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the present embodiment drive system, comprise driving engine 1, integrated actuating electric generator ISG2, self-acting clutch 3, drive motor 4, sun and planet gear 5, wheel 6, main reduction gear-diff 7, electric machine controller 8, power battery pack 9, external plug 10, wherein: driving engine 1 and 2 coaxial connections of integrated actuating electric generator, integrated actuating electric generator 2 is connected with self-acting clutch 3 driving disc spacing pressings, self-acting clutch 3 is connected with sun and planet gear 5 by drive motor 4, sun and planet gear 5 is connected with main reduction gear-diff 7 with drive motor 4 respectively, main reduction gear-diff 7 links to each other with wheel 6 by drive axle, power battery pack 9 is connected with external power supply plug 10 with electric machine controller 8 respectively by cable, and electric machine controller 8 is connected 4 with integrated actuating electric generator 2 with drive motor respectively by cable.Sun and planet gear 5 external toothings are captiveed joint with vehicle frame.Wherein electric machine controller 8 comprises drive motor controller and integrated actuating electric generator electric machine controller.
Integrated actuating electric generator 2 mainly is the energy generating that is used for utilizing the electric energy fire an engine 1 of power battery pack 9 and absorbs driving engine 1.4 of drive motor are used for drive wheels 6 and reclaim the kinetic energy of vehicle glancing impact.
Sun and planet gear 5 is as the drive disk assembly between drive motor 4 and the main reduction gear-diff 7, unite use with integrated actuating electric generator 2, self-acting clutch 3 and drive motor 4 in the driving system, the purpose of power dividing and speed change can be realized simultaneously, and then matched well and optimal control between hybrid electric vehicle engine, electrical motor, the power battery pack three can be realized.Working process under the various patterns of motor vehicle driven by mixed power is introduced in Fig. 2～7.
As shown in Figure 2, when pure motorized motions pattern, driving engine 1 is shut down, and power battery pack 9 is supplied with drive motor 4 energy, and the energy output of drive motor 4 passes to wheel 6 through sun and planet gear 7, main reduction gear-diff 7 successively.Wherein, the electric energy of power battery pack 9 has three kinds of source channels:
1. driving engine is directly supplied with;
2. external source is supplied with by external plug 10;
3. braking energy feedback is supplied with.
As shown in Figure 3, when the tandem drive pattern, the energy output of driving engine 1 charges to power battery pack 9 through the generating effect of integrated actuating electric generator 2 or does not directly offer drive motor 4 by power battery pack 9, the energy of power battery pack 9 offers drive motor 4, and the energy of exporting from drive motor 4 passes to wheel 6 through sun and planet gear 5, main reduction gear and diff 7 successively.
As shown in Figure 4, under drive pattern in parallel, the first transfer of energy path is: the energy of driving engine 1 output is through integrated actuating electric generator 2, power-transfer clutch 3 and drive motor 4; The second transfer of energy path is: battery pack 9 arrives drive motor 4 again to electric machine controller 8.After two strands of energy are coupled by sun and planet gear 5, pass to wheel 6 through main reduction gear and diff 7 again.
As shown in Figure 5, under driving engine independent drive pattern, the energy of driving engine 1 output passes to wheel 6 through integrated actuating electric generator 2, power-transfer clutch 3, sun and planet gear 4, main reduction gear and diff 7 successively.In this process, the idle running of the rotor of integrated actuating electric generator 2 and drive motor 4, the two does not do work.
As shown in Figure 6, engine drive, under the drive motor power generation mode, from the energy of driving engine 1 through integrated actuating electric generator 2, power-transfer clutch 3 clutch plates after, be divided into two-way and give power battery pack 9 chargings and pass to wheel 6 by drive motor 4 generatings respectively by sun and planet gear 5, main reduction gear and diff 7.
As shown in Figure 7, under the braking energy feedback pattern, give power battery pack 9 chargings through drive axle, diff and main reduction gear 7, sun and planet gear 5, drive motor 4, electric machine controller 8 from the vehicle energy of wheel 6.
As shown in Figure 8, under the stopping for charging pattern, charge for power battery pack 9 by extraneous charging pile.
As shown in Figure 9, the basic controlling strategy can be divided into four speed intervals, different intervals, and drive motor and engine drive load change to some extent:
(1) the pure electricity of low speed drives mode of operation
Mainly rely on drive motor 4 to drive when speed is lower than Ub, only about (Ub-20) km/h, can participate in driving directly during value at driving engine 1 and ISG2 under the situation of brish acceleration;
(2) middling speed is in parallel drives
When speed was higher than Ub and is lower than Ua, taking drive motor 4 was the auxilliary common strategy that drives for the driving engine 1 of advocating peace;
(3) high speed of a motor vehicle engine drive
When the speed of a motor vehicle is higher than Ua, drive based on driving engine 1, drive motor 4 drives or generating according to the actual needs of operating mode, regulates the combined efficiency of driving engine 1 and to the battery electric energy supplement with this.
As shown in figure 10, present embodiment is a prioritization scheme, on the basis of embodiment 1, also comprise two-speed transmission 11, this two-speed transmission 11 is arranged between sun and planet gear 5 and main reduction gear-diff 7 joint institutions, two-speed transmission 11 input shafts are connected with sun and planet gear 5, and two-speed transmission 11 output shafts are connected with main reduction gear-diff 7.Other parts connection and mode of operation are identical with embodiment 1 with the basic controlling strategy, repeat no more.
Present embodiment has reduced the requirement to the drive motor range of speed because the existence of two grades of speed-changing mechanisms has enlarged speed range, makes variable speed control more flexible.
Claims (4)
1. plug-in type integrated actuating electric generator hybrid power car driving system, comprise: wheel, main reduction gear-diff, sun and planet gear, drive motor, self-acting clutch, integrated actuating electric generator, driving engine, electric machine controller, battery management system, power battery pack, it is characterized in that: driving engine is connected with integrated actuating electric generator is coaxial, integrated actuating electric generator is connected with the self-acting clutch driving disc spacing pressing, self-acting clutch is connected with sun and planet gear by drive motor, sun and planet gear is connected with main reduction gear-diff with drive motor respectively, main reduction gear-diff links to each other with wheel by drive axle, power battery pack is connected with external power supply plug with electric machine controller respectively by cable, electric machine controller is connected with drive motor with integrated actuating electric generator respectively by cable, the sun and planet gear external toothing is captiveed joint with vehicle frame, wherein electric machine controller comprises drive motor controller and integrated actuating electric generator electric machine controller, a two-speed transmission is set between described sun and planet gear and the main reduction gear-diff, the two-speed transmission input shaft is connected with sun and planet gear, and output shaft is connected with main reduction gear-diff.
2. plug-in type integrated actuating electric generator hybrid power car driving system according to claim 1, it is characterized in that, described driving engine is as power unit, its power is directly passed to wheel by mechanical system, or charge to power battery pack in the mode of electric energy, or directly offer drive motor controller and be used for powering to drive motor by integrated actuating electric generator, electric machine controller.
3. plug-in type integrated actuating electric generator hybrid power car driving system according to claim 1 is characterized in that, described integrated actuating electric generator utilizes the electric energy fire an engine of battery and absorbs the energy generating of driving engine.
4. plug-in type integrated actuating electric generator hybrid power car driving system according to claim 1 is characterized in that, described drive motor is used for drive wheels and reclaim the kinetic energy of vehicle glancing impact.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810038540A CN100595085C (en) | 2008-06-05 | 2008-06-05 | Plug-in type integrated actuating electric generator hybrid power car driving system |
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| CN200810038540A CN100595085C (en) | 2008-06-05 | 2008-06-05 | Plug-in type integrated actuating electric generator hybrid power car driving system |
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| CN100595085C true CN100595085C (en) | 2010-03-24 |
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