CN101323243B - Hybrid power vehicle double electric machine double row planetary gear single clutch drive apparatus - Google Patents
Hybrid power vehicle double electric machine double row planetary gear single clutch drive apparatus Download PDFInfo
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- CN101323243B CN101323243B CN2008100409130A CN200810040913A CN101323243B CN 101323243 B CN101323243 B CN 101323243B CN 2008100409130 A CN2008100409130 A CN 2008100409130A CN 200810040913 A CN200810040913 A CN 200810040913A CN 101323243 B CN101323243 B CN 101323243B
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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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Abstract
The invention discloses a twin-motor two-planet-row and single clutch driving device of a hybrid vehicle in the technical field of machinery. The device is provided with a front planet row and a back planet row; the front planet row is provided with a front planet row planet wheel and a front planet row sun gear; the back planet row is provided with a back planet row planet wheel and a back planet row sun gear; the front planet row and the back planet row share a gear ring. The output shaft of an engine is connected with the input end of an integrated starter generator; the output end of the integrated starter generator is connected with the driving disk of the clutch; the driven disk of the clutch is connected with the planet wheel of the front planet row through a planet carrier; the sun gear of the front planet row is connected with a drive motor; the planet carrier of the planet wheel of the back planet row is arranged fixedly on a car frame; the sun gear of the back planet row is also connected with the drive motor; the outside gear of the gear ring is normally engaged with a power take-off gear. The twin-motor two-planet-row and single clutch driving device of the hybrid vehicle has the advantages of compact structure, large transmission ratio, large load support capability, stable driving, and high transmission efficiency, thereby realizing power dividing and infinite variable speed at the same time.
Description
Technical field
The present invention relates to a kind of actuating device of field of mechanical technique, specifically is a kind of hybrid power vehicle double electric machine double row planetary gear single clutch actuating device.
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.That the structure of motor vehicle driven by mixed power (HEV) mainly is divided into is parallel, tandem and series parallel type.The increase of series-parallel connection form and electric drive program is the general orientation of hybrid power development, it adopts differential planet gear, because epicyclic gear transmission is compared with common fixed axis gear transmission, have that quality is little, volume is little, transmitting ratio is big, load-carrying capacity is big, stable drive and driving efficiency advantages of higher, can realize the purpose of power dividing and speed change simultaneously, single planetary mechanism just can replace power-transfer clutch and the change-speed box in the prototype engine.And double row planetary gear electromechanical coupling driving mechanism is when possessing above-mentioned advantage, can better reduce the speed fluctuations in driving engine and the motor handoff procedure, realizing stepless change better, reduce the requirement for motor simultaneously, is a kind of advanced person's hybrid vehicle driving mechanism.
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 realize the mixed power automobile driving system that braking energy reclaims, comprise driving engine, front-wheel, storage battery, wheel hub electric motor, trailing wheel, electrical generator, back axle, but be the Preliminary Applications of hybrid power technology, do not have the advantage of bigger performance hybrid power; Domestic patent 200610064953.X, 200710078132.6 and 200710047421.X is the hybrid drive based on double planet wheel rows of mixing, all adopt single motor on the structure, double-clutch or multi-clutch and many drgs, though can realize electromechanical coupling and stepless shift function, but the actuating device size is big and cost is higher, simultaneously having relatively high expectations for motor.U.S. Pat 2004/0147365A1 has disclosed a kind of hybrid architecture that adopts double-motor before and after change speed gear box, but this structure is not proposed the pure motorized motions function that improvement in any mechanism realizes vehicle when realizing utilizing Manual transmission, be unfavorable for bringing into play the advantage of hybrid vehicle.
Summary of the invention
The object of the invention is at the deficiencies in the prior art, a kind of hybrid power vehicle double electric machine double row planetary gear single clutch actuating device is provided, realize the multiple mode of operation of hybrid vehicle by the various combination state of two motors, two a planets row and a power-transfer clutch, described device has stepless shift function and mode switch function.This driving device structure compactness, transferring elements is few, the purpose that can realize saving fuel oil and guarantee the car load tractive performance on the basis of saving manufacturing and improvement cost to greatest extent.
The present invention is achieved by the following technical solutions:
Hybrid power vehicle double electric machine double row planetary gear single clutch actuating device of the present invention comprises: driving engine, integrated actuating electric generator (being called for short ISG), power-transfer clutch, pinion carrier, preceding planet row sun wheel, preceding planet rows of planetary wheel, gear ring, back planet seniority among brothers and sisters star-wheel, back planet row sun wheel, drive motor (being called for short TM), power output gear.Wherein engine output shaft is connected with the integrated actuating electric generator input end, the integrated actuating electric generator mouth is connected with clutch driving case, clutch driven disc links to each other with preceding planet rows of planetary wheel by pinion carrier, preceding planet row sun wheel is connected with drive motor, the front and back planet is arranged the shared gear ring of using, back planet seniority among brothers and sisters star-wheel pinion carrier is fixed in vehicle frame, and back planet row sun wheel also is connected planet toothrow circle outer ring gear and power output gear constant-mesh with drive motor.
Apparatus of the present invention are coupled the power of driving engine output and the power of integrated actuating electric generator and drive motor by front and back two planets row, two planets are arranged a shared external toothing, and this external toothing through a pair of constant mesh gear with the takeoff output of coupling mechanism to wheel, two planets row's sun wheel is connected with drive motor jointly.And connect a controllable clutch at the integrated actuating electric generator mouth,, improve rate of energy under various mode of operations by this power-transfer clutch being separated and the optimal control of the control that combines with realization power.Back planet seniority among brothers and sisters star-wheel is fixed in vehicle frame, is single-degree-of-freedom system.This kind actuating device can obviously reduce the requirement for drive motor.
The structural innovation part of apparatus of the present invention is following 2 points: first, used and had compact conformation, transmitting ratio is big, stable drive, the capable row of the double star structure of plurality of advantages such as driving efficiency height, and two planets are arranged a shared external toothing, two planets row sun wheel connects drive motor jointly, and connect a controllable clutch at the integrated actuating electric generator mouth, thereby the interference drag in starting or braking procedure between motor or motor and the driving engine can better realize matched well and optimal control between each drive disk assembly of hybrid vehicle before and after having overcome in the common planetary structure.The second, after connecting power-transfer clutch, preceding planet row sun wheel is connected in series integrated actuating electric generator, and front and back planet row sun wheel connects drive motor jointly, can reduce the requirement to drive motor, and gives full play to the advantage of integrated actuating electric generator when static the startup.
The device that the present invention is above-mentioned comprises following multiple mode of operation:
(1) start-up mode: start-up mode is divided into static startup and two kinds of situations of pure electronic startup according to the state of car:
During static startup, the power-transfer clutch combination, ISG does the starter operation, directly drags engine starting by mouth before the motor, starts according to the difference decision that starts rotating speed and whether charges simultaneously;
During pure electronic startup, the electric weight that requires automobile driving speed to surpass setting value Vm or ISG motor storage battery is lower than certain value SOC, and the SOC value of storage battery is when reaching forced charge state SOCq, the power-transfer clutch combination, behind double planet wheel rows of mixing, power-transfer clutch and ISG, drive engine starting by drive motor, enter the driving engine operation, power dividing drives automobile, and to ISG motor battery charge.
(2) pure motorized motions pattern: motor drive mode (slight load) refers to that in automotive operation speed less than certain setting value, the SOC value of storage battery is higher than SOC
1The time, the needed torque of automotive operation is provided separately by drive motor.At this moment, disengaging of clutch, the power of the static drive motor TM of driving engine through after planet row sun wheel, back planet seniority among brothers and sisters star-wheel, planet toothrow circle, behind the constant-mesh gear ring of the outside, output to wheel by power output gear, drive automobile.
(3) engine drive pattern: refer to low speed driving in the automobile, the SOC value of storage battery is lower than SOC
1The time, the needed torque of automotive operation is provided separately by driving engine; The power-transfer clutch combination, the ISG motor absorbs energy to battery as electrical generator work, and drive motor rotates freely, and power reaches wheel by driving engine through front and back planet row.
(4) combination drive pattern: optimize power, SOC value of battery when low greater than engine efficiency at vehicle needs power, the power-transfer clutch combination, driving engine, the common powered vehicle of drive motor, the ISG motor judges that participation drives or absorbs the driving dump energy as electrical generator as electrical motor, low speed acceleration and high velocity during this pattern works in usually according to the different demands of power and the SOC value height of battery.
(5) braking mode: braking mode is divided into drive motor TM braking and two kinds of situations of Associated brake according to the state of car:
Under the middle low speed situation, disengaging of clutch, driving engine is static, and ISG rotates freely, and by drive motor TM independent brake, overcomes the ground friction resisting moment, does generator operation, reclaims braking energy, and to battery charge;
Under high-speed case, the power-transfer clutch combination, driving engine and drive motor TM Associated brake, according to the battery SOC situation, ISG does electrical generator or electrical motor operation, and drive motor TM does generator operation, reclaims braking energy, and to battery charge.
Apparatus of the present invention in start-up mode, decide static start-up mode of employing or pure electronic start-up mode according to the speed of a motor vehicle, SOC value of battery, the time before engine starting, realize the maximum utilization of electric energy, and reduced fuel oil consumption; The combination drive pattern occurs under the situation of high power requirements, drive motor participates in the driving process of the vehicle of running at high speed, and this moment, the ISG motor judged that according to the different demands of power and the SOC value height of battery absorption drives dump energy as electrical motor participation driving or as electrical generator, can realize driving engine by Optimal Control Strategy, drive motor, ISG motor three's optimal control, under the prerequisite that does not influence the automobile integral power, improved the fuel economy of vehicle, and these all come from the structure innovation of coupling device and the optimal design of control policy; Braking mode then is the separation that just decides power-transfer clutch according to the speed of a motor vehicle and combine, and to realize drive motor TM braking or Associated brake, can realize energy recovery more efficiently under the prerequisite that realizes braking function.
Compare with existing series parallel hybrid power automobile, the present invention has following remarkable result:
(1) used the double planet wheel rows of mixing structure, compact conformation, transmitting ratio is big, load-carrying capacity is big, stable drive, driving efficiency height;
(2) can realize power dividing and infinite variable speed purpose simultaneously;
(3) adopt driving engine and after ISG connects through a power-transfer clutch and double planet wheel rows of mixing bonded assembly structure, can further reduce the speed fluctuations in driving engine and the motor handoff procedure, realize stepless change better, improve economy, reduce requirement simultaneously for motor;
(4) continue to use the structure and the development Experience of numerous existing planetary transmissions, can significantly reduce manufacturing cost like this.
Description of drawings
Fig. 1 hybrid power vehicle double electric machine double row planetary gear single clutch driving device structure scheme drawing;
The transfer of energy course diagram of the static start-up mode of Fig. 2;
The transfer of energy course diagram of the pure electronic start-up mode of Fig. 3;
The transfer of energy course diagram of the pure motorized motions pattern of Fig. 4;
The transfer of energy course diagram of Fig. 5 engine drive pattern;
The transfer of energy course diagram of Fig. 6 combination drive pattern;
The transfer of energy course diagram of Fig. 7 drive motor braking mode;
The transfer of energy course diagram of Fig. 8 Associated brake pattern;
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 series-parallel hybrid power driving device comprises driving engine 1, integrated actuating electric generator 2, power-transfer clutch 3, pinion carrier 4, preceding planet row sun wheel 5, preceding planet rows of planetary wheel 6, gear ring 7, back planet seniority among brothers and sisters star-wheel 8, back planet row sun wheel 9, drive motor 10, power output gear 11.Wherein driving engine 1 output shaft is connected with integrated actuating electric generator 2 input ends, integrated actuating electric generator 2 mouths are connected with power-transfer clutch 3 driving disc spacing pressings, power-transfer clutch 3 clutch plates link to each other with preceding planet rows of planetary wheel 6 by pinion carrier 4, preceding planet row sun wheel 5 is connected with drive motor 10, the front and back planet is arranged a public gear ring 7, back planet seniority among brothers and sisters star-wheel 8 pinion carriers are fixed in vehicle frame, and back planet row sun wheel 9 also is connected gear ring 7 outer ring gears and power output gear 11 constant-meshes with drive motor 10.
Integrated actuating electric generator 2 mainly is to be used for the energy generating of start the engine 1 and absorption driving engine 1, and can regulate the rotating speed of driving engine 1, reduces its degree of cyclic irregularity.
Power-transfer clutch 3 connects integrated actuating electric generator 2 mouths and front planetary line 4, be used to transmit the power of driving engine 1, integrated actuating electric generator 2 and drive motor 7, carry out automatic clutch simultaneously and switch, realize that the reasonably optimizing of energy uses, improve capacity usage ratio.
Power coupling mechanism in the actuating device of the present invention is made of pinion carrier 4, preceding planet row sun wheel 5, preceding planet rows of planetary wheel 6, gear ring 7, back planet seniority among brothers and sisters star-wheel 8, back planet row sun wheel 9, stack can be coupled to the power from driving engine 1, integrated actuating electric generator 2 and drive motor 10, and can be optimized configuration to transfer of energy by control policy, be one of core institution of the present invention.
After the structural innovation part of the present invention is to have used driving engine 1 and integrated actuating electric generator 2 is connected through power-transfer clutch 3 and double planet wheel rows of mixing bonded assembly structure, thereby the interference drag in starting or braking procedure between motor or motor and the driving engine can better realize matched well and optimal control between each drive disk assembly of hybrid vehicle before and after having overcome in the capable row of the common double star structure.The working process that disposes under the various patterns of this kind structure hybrid vehicle is introduced in Fig. 2～8.
As shown in Figure 2, when static start-up mode, power-transfer clutch 3 combinations, integrated actuating electric generator 2 is done the starter operation, drives driving engine 1 by transmission shaft on the one hand and starts; On the other hand, its energy output is passed to the wheel drive automobile by the power output gear 11 of power-transfer clutch 3, pinion carrier 4, preceding planet rows of planetary wheel 6, gear ring 7, constant mesh gear pair successively.Power transmission line is shown in heavy line among Fig. 2.
As shown in Figure 3, when pure electronic start-up mode, power-transfer clutch 3 combinations, drive motor 10 is done the electrical motor operation, and its takeoff output is passed to the wheel drive automobile by the power output gear 11 of back planet row sun wheel 9, back planet seniority among brothers and sisters star-wheel 8, preceding planet row sun wheel 5, preceding planet rows of planetary wheel 6, gear ring 7, constant mesh gear pair on the one hand; On the other hand, its energy output drives driving engine 1 and starts by back planet row sun wheel 9, back planet seniority among brothers and sisters star-wheel 8, gear ring 7, preceding planet row sun wheel 5, preceding planet rows of planetary wheel 6, pinion carrier 4, power-transfer clutch 3, integrated actuating electric generator 2 successively.Power transmission line is shown in heavy line among Fig. 3.
As shown in Figure 4, when pure motorized motions pattern, power-transfer clutch 3 separates, driving engine 1 is static, integrated actuating electric generator 2 freely rotates, and the takeoff output of drive motor 10 is passed to the wheel drive automobile by the power output gear 11 of back planet row sun wheel 9, back planet seniority among brothers and sisters star-wheel 8, preceding planet row sun wheel 5, preceding planet rows of planetary wheel 6, gear ring 7, constant mesh gear pair successively.Power transmission line is shown in heavy line among Fig. 4.
As shown in Figure 5, when the engine drive pattern, power-transfer clutch 3 combinations, integrated actuating electric generator 2 absorbs energy to battery as electrical generator work, drive motor 10 rotates freely, and the takeoff output of driving engine 1 is passed to the wheel drive automobile by the power output gear 11 of integrated actuating electric generator 2, power-transfer clutch 3, pinion carrier 4, preceding planet rows of planetary wheel 6, gear ring 7, constant mesh gear pair successively.Power transmission line is shown in heavy line among Fig. 5.
As shown in Figure 6, when the combination drive pattern, power-transfer clutch 3 combinations, driving engine 1, drive motor 10 common powered vehicle, integrated actuating electric generator 2 is as electrical generator or electrical motor work.The takeoff output of driving engine 1 is successively by integrated actuating electric generator 2, power-transfer clutch 3, pinion carrier 4, preceding planet rows of planetary wheel 6, gear ring 7, the takeoff output of drive motor 10 is successively by back planet row sun wheel 9, back planet seniority among brothers and sisters star-wheel 8, preceding planet row sun wheel 5, preceding planet rows of planetary wheel 6, gear ring 7, the two power converges at the external toothing place, and is passed to the wheel drive automobile via the power output gear 11 of constant mesh gear pair.Power transmission line is shown in heavy line among Fig. 6.
As shown in Figure 7, when the drive motor braking mode, power-transfer clutch 3 separates, driving engine 1 is static, integrated actuating electric generator 2 rotates freely, and ranks star-wheel 8, back planet row's sun wheel 9 and preceding planet rows of planetary wheel 6, preceding planet row sun wheel 5 arrival drive motor 10 through power output gear 11, gear ring 7, back planet successively from the vehicle energy of wheel, makes it to do generator operation, reclaim braking energy, and to battery charge.Power transmission line is shown in heavy line among Fig. 7.
As shown in Figure 8, during the Associated brake pattern, power-transfer clutch 3 combinations, driving engine 1 and drive motor 10 Associated brakes, according to the battery SOC situation, integrated actuating electric generator 2 is done electrical generator or electrical motor operation.A ground braking force part, power output gear 11, gear ring 7, back planet seniority among brothers and sisters star-wheel 8, back planet row's sun wheel 9 and preceding planet rows of planetary wheel 6, preceding planet row sun wheel 5 arrive drive motor 10, make it to do generator operation, reclaim braking energy, and to battery charge; Another part then comes balance by the takeoff output of driving engine 1 process integrated actuating electric generator 2, power-transfer clutch 3, pinion carrier 4, preceding planet rows of planetary wheel 6, gear ring 7.Power transmission line is shown in heavy line among Fig. 8.
Claims (3)
1. hybrid power vehicle double electric machine double row planetary gear single clutch actuating device, comprise: driving engine (1), integrated actuating electric generator (2), power-transfer clutch (3), pinion carrier (4), preceding planet row sun wheel (5), preceding planet rows of planetary wheel (6), gear ring (7), back planet seniority among brothers and sisters star-wheel (8), back planet row sun wheel (9), drive motor (10), power output gear (11), it is characterized in that: driving engine (1) output shaft is connected with integrated actuating electric generator (2) input end, integrated actuating electric generator (2) mouth is connected with power-transfer clutch (3) driving disc spacing pressing, power-transfer clutch (3) clutch plate is taken turns (6) by pinion carrier (4) with preceding planet rows of planetary and is linked to each other, preceding planet row's sun wheel (5) is connected with drive motor (10), the front and back planet is arranged a public gear ring (7), back planet seniority among brothers and sisters star-wheel (8) pinion carrier is fixed in vehicle frame, back planet row's sun wheel (9) also is connected gear ring (7) outer ring gear and power output gear (11) constant-mesh with drive motor (10).
2. hybrid power vehicle double electric machine double row planetary gear single clutch actuating device according to claim 1, it is characterized in that: described driving engine (1) is as power unit, its power is directly passed to wheel by mechanical system, or charges a battery by integrated actuating electric generator (2) or drive motor (10) mode with electric energy.
3. hybrid power vehicle double electric machine double row planetary gear single clutch actuating device according to claim 1 is characterized in that: described pinion carrier (4), preceding planet row sun wheel (5), preceding planet rows of planetary wheel (6), gear ring (7), back planet seniority among brothers and sisters star-wheel (8), back planet row's sun wheel (9) constitute power coupling mechanism.
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| CN2008100409130A CN101323243B (en) | 2008-07-24 | 2008-07-24 | Hybrid power vehicle double electric machine double row planetary gear single clutch drive apparatus |
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| CN2008100409130A CN101323243B (en) | 2008-07-24 | 2008-07-24 | Hybrid power vehicle double electric machine double row planetary gear single clutch drive apparatus |
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| CN101323243A CN101323243A (en) | 2008-12-17 |
| CN101323243B true CN101323243B (en) | 2011-07-20 |
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| CN2008100409130A Expired - Fee Related CN101323243B (en) | 2008-07-24 | 2008-07-24 | Hybrid power vehicle double electric machine double row planetary gear single clutch drive apparatus |
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2008
- 2008-07-24 CN CN2008100409130A patent/CN101323243B/en not_active Expired - Fee Related
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