CN105459787A - Power transmission system for vehicle and vehicle with power transmission system - Google Patents
Power transmission system for vehicle and vehicle with power transmission system Download PDFInfo
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- CN105459787A CN105459787A CN201410458177.6A CN201410458177A CN105459787A CN 105459787 A CN105459787 A CN 105459787A CN 201410458177 A CN201410458177 A CN 201410458177A CN 105459787 A CN105459787 A CN 105459787A
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Abstract
The invention discloses a power transmission system for a vehicle and the vehicle with the power transmission system. The power transmission system comprises a first input shaft, a second input shaft, a first output shaft, a second output shaft, a first motor generator and an engine, wherein driving gears are separately and fixedly arranged on each of the first input shaft and the second input shaft; driven gears are separately arranged on each of the first output shaft and the second output shaft in an empty sleeving manner, a middle idler is arranged on one of the first output shaft and the second output shaft in an empty sleeving manner, the middle idler is arranged on one of the first output shaft and the second output shaft, a transmission gear is also fixedly arranged on the same one of the first output shaft and the second output shaft,, and the middle idler is meshed with one of the driving gears; the first motor generator is connected with a motor power shaft, and a first gear of the motor power shaft and a second gear of the motor power shaft are arranged on the motor power shaft in an empty sleeving manner, the second gear of the motor power shaft is meshed with the middle idler, and the first gear of the motor power shaft is meshed with a transmission gear; the engine can be jointed with the first input shaft and/or the second input shaft. The power transmission system disclosed by the invention is simple and compact in structure, and the function of charging during parking can be realized.
Description
Technical field
The present invention relates to automobile technical field, especially relate to a kind of power drive system and there is the vehicle of this power drive system.
Background technology
Along with the continuous consumption of the energy, the development and utilization of new forms of energy vehicle becomes a kind of trend gradually.Hybrid vehicle, as the one in new forms of energy vehicle, is driven by driving engine and/or motor, has various modes, can improve driving efficiency and fuel economy.
But in correlation technique known for inventor, the power drive system general structure in hybrid vehicle is complicated, bulky, and often cannot realize parking charge function, and mixed dynamic model formula is single, only can realize the mixed dynamic model formula of indivedual gear, the mixed dynamic model formula of full gear cannot be realized.
Summary of the invention
The present invention is intended to solve one of above-mentioned technical matters of the prior art at least to a certain extent.
For this reason, one object of the present invention is to propose a kind of power drive system for vehicle, and this power transmission system structure is simple, compact, can realize parking charge function.
Another object of the present invention is to propose a kind of vehicle with power drive system described above.
According to the power drive system for vehicle of the present invention, comprise: the first input shaft and the second input shaft, described second input shaft is set on described first input shaft coaxially, and each in described first input shaft and described second input shaft is all fixedly installed driving gear; First output shaft and the second output shaft, in each in described first output shaft and described second output shaft, equal empty set is provided with driven gear, described driving gear and described driven gear engage respectively accordingly, described first output shaft is provided with on the first efferent, described second output shaft and is provided with the second efferent, one of them overhead cover in wherein said first output shaft and described second output shaft is provided with an intermediate idler and is also fixedly installed a transmission gear, and described intermediate idler engages with driving gear described in one of them; Motor mechanical axis, described motor mechanical axis overhead cover is provided with motor power axle first gear and motor mechanical axis second gear, described motor mechanical axis second gear engages with described intermediate idler and described motor mechanical axis first gear engages with described transmission gear, each in described motor mechanical axis first gear and described motor mechanical axis second gear by the synchronous effect of synchro with described motor mechanical axis synchronous rotary; First dynamotor, described first dynamotor is connected with described motor mechanical axis; And driving engine, optionally engage at least one in described first input shaft and described second input shaft at described driving engine with described driving engine when carrying out transmission of power between input shaft.
According to the power drive system of the embodiment of the present invention, compact conformation, axially and radial dimension little, the mixed condition of starting building of parking charge function and gear entirely can be realized, good dynamic property.
Another aspect of the present invention proposes a kind of vehicle, and this vehicle comprises as above for the power drive system of vehicle.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the power drive system according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of the power drive system according to the embodiment of the present invention;
Fig. 3 is the schematic diagram of the power drive system according to the embodiment of the present invention;
Fig. 4 is the schematic diagram of the power drive system according to the embodiment of the present invention;
Fig. 5 is the schematic diagram of the power drive system according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " cw ", orientation or the position relationship of the instruction such as " conter clockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
The power drive system 100 for vehicle according to the embodiment of the present invention is described in detail referring to Fig. 1-5.
With reference to shown in Fig. 1, two input shafts, two output shafts and at least two propulsions source can be comprised according to the power drive system 100 of the embodiment of the present invention.
As shown in Figure 1, two input shafts can be the first coaxially sheathed input shaft 11 and the second input shaft 12, two output shafts can be the first output shaft 31 and the second output shaft 32 be arranged in parallel, and at least two propulsions source can be the first dynamotor 51 and driving engine 4.
As shown in Figure 1, second input shaft 12 can be hollow shaft structure, first input shaft 11 can be solid axle structure, second input shaft 12 can empty set be arranged on the first input shaft 11, first input shaft 11 is fixedly installed driving gear, similarly, the second input shaft 12 is also fixedly installed driving gear.As optional embodiment, the driving gear on each input shaft is multiple.
First output shaft 31 overhead cover is provided with driven gear, and similarly, on the second output shaft 32, also empty set is provided with driven gear, and the driven gear on each output shaft can rotate by differential relative to this output shaft.As the optional embodiment of one, the driven gear on each output shaft is also multiple.
Multiple driving gear engages respectively accordingly with multiple driven gear, thus forms multipair gear pair, and this will describe in detail below in conjunction with specific embodiments.
Wherein, each driven gear rotates with corresponding output shaft synchronous by the synchronous effect of synchro, and namely synchro may be used for two (one or two) driven gears at the most of correspondence optionally to engage with corresponding output shaft (can certainly disconnect).Synchro can adopt conventional confguration, and be such as arranged on by synchro on corresponding output shaft, the both sides of each synchro can arrange one or two driven gear.
Wherein, one of them overhead cover in the first output shaft 31 and the second output shaft 32 is provided with an intermediate idler 312 and is also fixedly installed a transmission gear 313.Such as in the example of fig. 1, intermediate idler 312 empty set is arranged on the first output shaft 31, and namely intermediate idler 312 can rotate by differential relative to the first output shaft 31, and transmission gear 313 to be fixed on the first output shaft 31 and to rotate with the first output shaft 31.But the present invention is not limited thereto, in other embodiments of the present invention, intermediate idler 312 and transmission gear 313 can also be arranged on the second output shaft 32 simultaneously.
Intermediate idler 312 and one of them driving gear engaged transmission, such as in the example of fig. 1, intermediate idler 312 can keep off driving gear 4a engaged transmission with four, but is not limited thereto.
First efferent 311 as the first output shaft 31 clutch end and be arranged on the first output shaft 31, alternatively, the first efferent 311 can be fixedly installed on the first output shaft 31.Similarly, the second efferent 321 as the second output shaft 32 clutch end and be arranged on the second output shaft 32, alternatively, the second efferent 321 can be fixedly installed on the second output shaft 32.
In certain embodiments, first efferent 311 is for being fixedly installed on the first output gear on the first output shaft 31, second efferent 321 is for being fixedly installed on the second output gear on the second output shaft 32, and the first output gear 311 and the second output gear 321 can engage with the main reduction gear driven gear 63 on differential for vehicles 61 respectively.
As shown in Figure 1, the first dynamotor 51 is connected with motor mechanical axis 33, and motor mechanical axis 33 can be the motor shaft of the first dynamotor 51 self, and certainly, the motor shaft of motor mechanical axis 33 and the first dynamotor 51 also can be two independent parts.
Motor mechanical axis 33 overhead cover is provided with motor power axle first gear 331 and motor mechanical axis second gear 332, in other words, motor mechanical axis first gear 331 can rotate by differential relative to motor mechanical axis 33, and motor mechanical axis second gear 332 can rotate by differential relative to motor mechanical axis 33.In Fig. 1 example, motor mechanical axis second gear 332 can with intermediate idler 312 engaged transmission, motor mechanical axis first gear 331 can engage with transmission gear 313.
Need to illustrate a bit, in the example of fig. 1, first output gear 311 and the second output gear 321 can all engage with main reduction gear driven gear 63, but because Fig. 1 is transmission sketch, therefore obviously do not illustrate that the first output gear 311 and the second output gear 321 all engage with main reduction gear driven gear 63.
As shown in Figure 1, each in motor mechanical axis first gear 331 and motor mechanical axis second gear 332 by the synchronous effect of synchro with motor mechanical axis 33 synchronous rotary.Such as, the synchro of corresponding motor mechanical axis first gear 331 and motor mechanical axis second gear 332 (such as, motor mechanical axis synchro 33c) can between motor mechanical axis first gear 331 and motor mechanical axis second gear 332, this synchro can engage one of motor mechanical axis first gear 331 and motor mechanical axis second gear 332, and this synchro also all can disconnect with motor mechanical axis first gear 331 and motor mechanical axis second gear 332 certainly.
The mouth such as bent axle of driving engine 4 driving engine 4 be arranged to when carrying out transmission of power between input shaft optionally engage at least one in the first input shaft 11 and the second input shaft 12.In other words, driving engine 4 can engage to transmit power with the first input shaft 11, and now driving engine 4 can disconnect with the second input shaft 12.Or driving engine 4 can engage to transmit power with the second input shaft 12, now driving engine 4 can disconnect with the first input shaft 11.Moreover driving engine 4 can engage the first input shaft 11 and the second input shaft 12 simultaneously.
In one embodiment, driving engine 4 can be connected by double-clutch 2 with between input shaft, double-clutch 2 has input end 23, first mouth 21 and the second mouth 22, the input end 23 of double-clutch 2 can be the housing of double-clutch 2, and its first mouth 21 and the second mouth 22 can be two clutch plates.Usually, housing and two clutch plates can all disconnect, namely input end 23 and the first mouth 21 and the second mouth 22 all disconnect, when needs engage one of them clutch plate, can control housing to carry out engaging thus synchronous rotary with corresponding clutch plate, namely input end 23 engages with one of the first mouth 21 and second mouth 22.Alternatively, input end 23 also can engage the first mouth 21 and the second mouth 22 simultaneously.
Should be appreciated that the concrete engagement state of double-clutch 2 is controlled the impact of strategy, for a person skilled in the art, can transmission mode needed for reality and adaptive settings control policy.
As shown in Figure 1, driving engine 4 is connected with the input end 23 of double-clutch 2, first mouth 21 of double-clutch 2 is connected with the first input shaft 11, thus the first mouth 21 and the first input shaft 11 synchronous rotary, second mouth 22 of double-clutch 2 is connected with the second input shaft 12, thus the second mouth 22 of double-clutch 2 is connected with the second input shaft 12.
In some embodiments of the invention, power drive system 100 has four advance gears.Shown in composition graphs 1, first input shaft 11 is fixedly installed multiple odd number gear driving gear, the second input shaft 12 is fixedly installed multiple even number gear driving gear, thus, first input shaft 11 is responsible for transmission odd number gear, and the second input shaft 12 is responsible for transmission even number gear.Accordingly, the first output shaft 31 overhead cover arranges multiple odd number gear driven gear, and the plurality of odd number gear driven gear keeps off driving gear with the multiple odd numbers on the first input shaft 11 and engages accordingly respectively.Similarly, the second output shaft 32 overhead cover is provided with multiple even number gear driven gear, and the plurality of even number gear driven gear keeps off driving gear with the multiple even numbers on the second input shaft 12 and engages accordingly respectively.
Specifically, with reference to shown in Fig. 1, the first input shaft 11 is fixedly installed a gear driving gear 1a, three gear driving gear 3a, the second input shaft 12 is fixedly installed two gear driving gear 2a and four gear driving gear 4a.
Accordingly, the first output shaft 31 overhead cover is provided with a gear driven gear 1b, three gear driven gear 3b, and the second output shaft 32 overhead cover is provided with two gear driven gear 2b and four gear driven gear 4b.
One gear driving gear 1a and keeps off driven gear 1b and engages thus form first gear pair.Two gear driving gear 2a and two gear driven gear 2b engage thus form second gear pair.Three gear driving gear 3a and three gear driven gear 3b engage thus form three gear gear pairs.Four gear driving gear 4a and four gear driven gear 4b engage thus form four gear gear pairs.
Composition graphs 1, one gear driven gear 1b and three keeps off and is provided with one or three between driven gear 3b and keeps off synchro 13c, one or three gear synchro 13c are arranged on the first output shaft 31, when the sliding hub of one or three gear synchro 13c is moved to the left, three gear driven gear 3b can be engaged, when the sliding hub of one or three gear synchro 13c moves right, a gear driven gear 1b can be engaged.
Two or four gear synchro 24c are provided with between two gear driven gear 2b and four gear driven gear 4b, two or four gear synchro 24c are arranged on the second output shaft 32, when the sliding hub of two or four gear synchro 24c is moved to the left, two gear driven gear 2b can be engaged, when the sliding hub of two or four gear synchro 24c moves right, four gear driven gear 4b can be engaged.
Motor mechanical axis synchro 33c is provided with between motor mechanical axis first gear 331 and motor mechanical axis second gear 332, motor mechanical axis synchro 33c is arranged on motor mechanical axis 33, when the sliding hub of motor mechanical axis synchro 33c moves right, motor mechanical axis second gear 332 can be engaged, when the sliding hub of motor mechanical axis synchro 33c is moved to the left, motor mechanical axis first gear 331 can be engaged.
Should be understood that, the description above about synchro is only schematic, does not represent the moving direction of synchro in actual product, can not be interpreted as it is to one restriction of the present invention.
In one embodiment, as shown in Figure 1, a gear driving gear 1a, three gear driving gear 3a, four gear driving gear 4a, two distances of keeping off driving gear 2a and driving engine 4 reduce successively.In other words, shown in composition graphs 1, be followed successively by gear driving gear 1a, three gear driving gear 3a, four gear driving gear 4a, two gear driving gear 2a from right to left, arrange like this and power drive system 100 can be made compacter.
According to the power drive system 100 of some embodiments of the present invention, the second dynamotor 52 can also be set up to increase the dynamic property of power drive system 100, enrich transmission mode.Such as, in certain embodiments, the second dynamotor 52 can with main reduction gear driven gear 63 transmission, the motor shaft of the second dynamotor 52 such as, can arrange gear, and this gear and main reduction gear driven gear 63 be engaged transmission directly.And for example, in further embodiments, the second dynamotor 52 also can be arranged to be connected with the first input shaft 11 or be connected with the first output shaft 21 or with the second output shaft 22.For another example, in some embodiments again, the second dynamotor 52 is two and is separately positioned on the both sides of diff 61, and such as these two the second dynamotors 52 can become one with diff 61.Or, aforesaid driving engine 4 and the first dynamotor 51 are for driving front-wheel, second dynamotor 52 also can be wheel motor and for trailing wheel, or the second dynamotor 52 can drive two trailing wheels by a speed reduction gearing 53, or the second dynamotor 52 is two and drives a trailing wheel respectively by a speed reduction gearing 53.
Be understandable that; for the ordinary skill in the art; on the basis of having read specification sheets foregoing, can combine the particular location of the second dynamotor 52 in the various embodiments described above, this falls within protection scope of the present invention equally.
In addition, it should be noted that, in the description of the present invention about " the first dynamotor 51 ", " the second dynamotor 52 ", dynamotor refers to the motor with electrical motor and generator function.
Describe the typical condition according to the power drive system 100 of the embodiment of the present invention in detail below in conjunction with Fig. 1, this typical condition includes but not limited to parking charging operating mode, pure electronic operating mode, the mixed condition of starting building of each gear, driving limit, driving engine 4 limit charging operating mode.
Parking charging operating mode:
When power drive system 100 is in parking charging operating mode, the input end 23 of double-clutch 2 engages the second mouth 22 and disconnects with the first mouth 21, motor mechanical axis synchro 33c engages motor mechanical axis second gear 332, now all the other synchros disconnect, and the power that driving engine 4 exports is all for driving the first dynamotor 51 to generate electricity.Because four gear transmissions are top gear position, speed ratio is maximum, and moment is transmitted optimum, and energy transfer efficiency is the highest, therefore can realize fast charge.And, because input end 23 and the first mouth 21 disconnect, therefore the driving gear on the first mouth 21, first input shaft 11 and the first input shaft 11 is not all done, with rotating, to avoid degradation of energy to greatest extent, improves the charge efficiency of driving engine 4 further.
In brief, when vehicle is in parked state, driving engine 4 be arranged to by the Power output that produces to one of them driving gear of intermediate idler 312 engaged transmission (such as, four gear driving gear 4a), and by motor mechanical axis synchro 33c the synchronous of motor mechanical axis second gear 332 outputed power and to generate electricity to drive the first dynamotor 51 to the first dynamotor 51.
Pure electronic operating mode:
When power drive system 100 is in pure electronic operating mode, motor mechanical axis synchro 33c engages motor mechanical axis first gear 331, from the power of the first dynamotor 51 by exporting to diff 61 after motor mechanical axis first gear 331, transmission gear 313, first output shaft 31, first output gear 311, then by diff 61 by power distribution to wheel.
Under this operating mode, the first dynamotor 51 direct drive of wheel, power does not carry out transmission by double-clutch 2, input shaft and shift gear, and messenger chain is the shortest, and driving efficiency is high, and transmission degradation of energy is little, avoids degradation of energy to greatest extent.
The mixed condition of starting building of each gear:
Power drive system 100 be in each gear mixed start building condition time, for a gear transmission, the input end 23 of double-clutch 2 engages the first mouth 21 and disconnects with the second mouth 22, motor mechanical axis synchro 33c engages motor mechanical axis first gear 331, one or three gear synchro 13c engage a gear driven gear 1b, and two or four gear synchro 24c disconnect.
The power that driving engine 4 exports exports the first output gear 311 to by the first input shaft 11, first output shaft 31, the power of the first dynamotor 51 exports to the first output gear 311 by motor mechanical axis first gear 331, transmission gear 311, first output shaft 31, export to diff 61 from the first output gear 311 after this two parts power coupling, thus drive vehicle.Now, the first dynamotor 51 is by self speed adjustment, thus coupling is from the power of driving engine 4, make the first output gear 311 can balanced synchronization receive both power, thus more smoothly drive vehicle.
Similarly, it is similar that three gear transmissions and keep off transmission, repeats no more here.
For two gear transmissions, the input end 23 of double-clutch 2 engages the second mouth 22 and disconnects with the first mouth 21, motor mechanical axis synchro 33c engages motor mechanical axis first gear 331,24 and keeps off synchro 24c joint two gear driven gear 2b, and one or three gear synchro 13c disconnect.
The power that driving engine 4 exports exports the second output gear 321 to by the second input shaft 12, second output shaft 32, the power of the first dynamotor 51 exports to the first output gear 311 by motor mechanical axis first gear 331, transmission gear 311, first output shaft 31, diff 61 distributes to wheel by after the power coupling from the first output gear 311 and the second output gear 321, thus drives vehicle.Under this operating mode, the first dynamotor 51 is by self speed adjustment, thus coupling is from the power of driving engine 4, make diff driven gear 63 can balanced synchronization receive both power, thus more smoothly drive vehicle.
Similarly, it is similar that four gear transmissions and two keep off transmission, repeats no more here.
Driving limit, driving engine 4 limit charging operating mode:
When power drive system 100 is in driving limit, driving engine 4 limit charging operating mode, to drive vehicle by first gear pair, the input end 23 of double-clutch 2 engages the first mouth 21 and disconnects with the second mouth 22, one or three gear synchro 13c engage a gear driven gear 1b, two or four gear synchro 24c disconnect, and motor mechanical axis synchro 33c engages motor mechanical axis first gear 331.
A part of power that driving engine 4 exports exports to diff 61 by the first input shaft 11 and the first output shaft 31 from the first output gear 311, and power distributes to wheel from diff 61.Another part power that driving engine exports by exporting to the first dynamotor 51 after the first input shaft 11, first output shaft 31, transmission gear 313, motor mechanical axis first gear 331, motor mechanical axis 33, thus drives the first dynamotor 51 to generate electricity.
Similarly, at driving engine 4 with during three gear gear pair transmissions and one to keep off transmission similar, repeat no more here.
And for example, for two gear transmissions, the input end 23 of double-clutch 2 engages the second mouth 22 and disconnects with the first mouth 21, and two or four gear synchro 24c engage two gear driven gear 2b, motor mechanical axis synchro 33c engages motor mechanical axis second gear 332,1 and keeps off synchro 13c disconnection.
A part of power that driving engine 4 exports exports to diff 61 by the second input shaft 12 and the second output shaft 32 from the second output gear 321, and power distributes to wheel from diff 61.Meanwhile, another part power that driving engine 4 exports exports to the first dynamotor 51 by four gear driving gear 4a, intermediate idler 312 and motor mechanical axis second gear 332, thus drives the first dynamotor 51 to generate electricity.
Similarly, at driving engine 4 with during four gear gear pair transmissions and two to keep off transmission similar, repeat no more here.
Under this operating mode, driving engine 4 realizes the object that charging limit, limit drives vehicle, and without extra with rotating, power transfer efficiency is better.
Be understandable that, when above-mentioned power drive system 100 is in driving limit, driving engine 4 limit charging operating mode, double-clutch 2 only has a mouth to engage with input end 23, but the present invention is not limited to this, in other embodiments of the invention, when power drive system 100 is in driving limit, driving engine 4 limit charging operating mode, the first mouth 21 of double-clutch 2 and the second mouth 22 also can engage with input end 23 simultaneously.
Particularly, for a gear transmission, motor mechanical axis synchro 33c engages motor mechanical axis second gear 332, the input end 23 of double-clutch 2 engages the first mouth 21 and the second mouth 22 simultaneously, one or three gear synchro 13c engage a gear driven gear 1b, a part of power that driving engine 4 exports is by the first input shaft 11, export after first output shaft 31, another part power that driving engine 4 exports is by the second input shaft 12, intermediate idler 312, the first dynamotor 51 is exported to after motor mechanical axis second gear 332, thus drive the first dynamotor 52 to generate electricity.
Similarly, driving engine 4 with during three gear gear pair transmissions with one keep off transmission similar, one or three gear synchro 13c joints three keep off driven gear 3b, repeat no more here.
Namely, now driving engine 4 will wherein can be passed through wherein output shaft (such as, the first output shaft 31) and exports to wheel using the power travelled as vehicle and another part power is exported to the first dynamotor 51 by motor mechanical axis 33 generate electricity to drive the first dynamotor 51 by a part of power by conjugation while input end 233 and the first mouth 21 and the second mouth 22.
Describe the electronic differential lock construction according to the embodiment of the present invention in detail below with reference to Fig. 2-Fig. 5, this structure can realize the pair of driving wheels that locking skids when there is tyre skidding phenomenon, thus improves skidding, improves trafficability energy.
As Figure 2-Figure 5, this electronic differential lock construction comprises the 3rd dynamotor 201, the 4th dynamotor 301 and anti-skidding synchro 503.Wherein, driving engine 4 and/or the first dynamotor 51 are for driving pair of wheels 71,3rd dynamotor 201 and the 4th dynamotor 301 are arranged for driving second pair of wheel 72, wherein pair of wheels 71 is a pair in front-wheel and trailing wheel, and the second pair of wheel 72 is other a pair in front-wheel and trailing wheel.In the example of Fig. 2-Fig. 4, driving engine 4 and the first dynamotor 51 drive front-wheel 71, and the 3rd dynamotor 201 and the 4th dynamotor 301 are respectively used to driving two trailing wheels 72.
Shown in composition graphs 2-Fig. 5,3rd dynamotor 201 is arranged to link with in second pair of wheel 72, in other words, 3rd dynamotor 201 can output power to this wheel to drive this vehicle wheel rotation, or the 3rd dynamotor 201 also can absorb energy from this wheel, thus generates electricity.
Similarly, 4th dynamotor 301 is arranged to link with another in second pair of wheel 72, in other words, 4th dynamotor 301 can output power to this another wheel to drive this another vehicle wheel rotation, or the 4th dynamotor 301 also can absorb energy from this another wheel, thus generates electricity.In the example of Fig. 2-Fig. 4, the 3rd dynamotor 201 links with left rear wheel, and the 4th dynamotor 301 links with off hind wheel, but the present invention is not limited to this.
Anti-skidding synchro 503 is arranged to optionally synchronous second pair of wheel 72, thus make second pair of wheel 72 synchronous rotary, in other words, after the synchronous second pair of wheel 72 of anti-skidding synchro 503 (namely anti-skidding synchro 503 is in engagement state), formed between second pair of wheel 72 and connect firmly form, thus synchronous rotary, can not rotate by differential.
And when anti-skidding synchro 503 is in off-state, 3rd dynamotor 201 and the 4th dynamotor 301 can drive corresponding wheel with different rotational speed respectively, realize the differential rotating function of two wheels, certainly, when anti-skidding synchro 503 is in off-state, the 3rd dynamotor 201 and the 4th dynamotor 301 also can drive this second pair of wheel 72 with identical rotational speed.
Thus, by arranging the 3rd dynamotor 201 and the 4th dynamotor 301 individually drives second pair of wheel 72, thus the differential that can realize second pair of wheel 72 rotates, and when there is one of them tyre skidding phenomenon, anti-skidding synchro 503 can synchronous second pair of wheel 72 to make second pair of wheel 72 synchronous rotary, jointly after realizing the power coupling that two motors (can certainly be) export drive second pair of wheel 72 operation, improve tyre skidding phenomenon, improve the carrying capacity of vehicle.
In brief, according to the power drive system 100 of the embodiment of the present invention, owing to being provided with the cause of anti-skidding synchro 503, therefore corresponding vehicle bridge can be cancelled (such as, back axle) the mechanical type self-locking differential structure that has, but functionally but can be realized the function of traditional mechanical type self-locking differential by the synchronous effect of anti-skidding synchro 503, make thus compacter according to the structure of the power drive system 100 of the embodiment of the present invention, cost is lower.
Below the example of type of drive composition graphs 2-Fig. 5 of the 3rd dynamotor 201, the 4th dynamotor 301 and wheel is described in detail.
In certain embodiments, as shown in figs 2-4, by gear structure indirect drive between the 3rd dynamotor 201 and corresponding wheel, similarly, between the 4th dynamotor 301 and corresponding wheel, also this gear structure indirect drive can be passed through.
Carry out transmission by gear structure to be easy to realize and structure is simple, and required transmitting ratio can be obtained, reliable transmission.And, 3rd dynamotor 201 carries out power transmission with corresponding wheel by identical gear structure with the 4th dynamotor 301, also improve the commonality of gear structure, also make power drive system 100 have higher symmetry simultaneously, center of gravity is avoided too to depart to side, enable center of gravity be in the midway location of two wheels or the position near centre better, improve stability and the reliability of power drive system 100.
Further, as optional embodiment, as shown in figs 2-4, the gear structure adopted between the 3rd dynamotor 201 and corresponding wheel can comprise the first gear 401, second gear 402, the 3rd gear 403 and the 4th gear 404 4 gears.
First gear 401 can be arranged on the first power take-off shaft 202 of the 3rd dynamotor 201 correspondence, and the first gear 401 can with the first power take-off shaft 202 synchronous rotary.Wherein, first power take-off shaft 202 can be used for exporting the power produced from the 3rd dynamotor 201, or counter for the wheel Power output dragged can be same structure to the motor shaft of the 3rd dynamotor 201, first power take-off shaft 202 and the 3rd dynamotor 201 by the first power take-off shaft 202.Certainly alternatively, the motor shaft of the first power take-off shaft 202 and the 3rd dynamotor 201 also can be two independent parts, and now the first power take-off shaft 202 is connected with the motor of the 3rd dynamotor 201.
The wheel corresponding with the 3rd dynamotor 201 is connected with the first semiaxis 204, second gear 402 to be arranged on the first semiaxis 204 and can with the first semiaxis 204 synchronous rotary, 3rd gear 403 engages with the first gear 401 and the 4th gear 404 engages with the second gear 402, and the 3rd gear 403 and the 4th gear 404 coaxially arranged and can synchronous rotary.
Similarly, as shown in figs 2-4, the gear structure adopted between the 4th dynamotor 301 and corresponding wheel can comprise the 5th gear 405, the 6th gear 406, the 7th gear 407 and octadentate and take turns 408 totally four gears.On the second power take-off shaft 302 that 5th gear 405 can be arranged on the 4th dynamotor 301 correspondence and can with the second power take-off shaft 302 synchronous rotary.Wherein, second power take-off shaft 302 can be used for exporting the power produced from the 4th dynamotor 301, or counter for the wheel Power output dragged can be same structure to the motor shaft of the 4th dynamotor 301, second power take-off shaft 302 and the 4th dynamotor 301 by the second power take-off shaft 302.Certainly alternatively, the motor shaft of the second power take-off shaft 302 and the 4th dynamotor 301 also can be two independent parts, and now the second power take-off shaft 302 is connected with the motor shaft of the 4th dynamotor 301.
The wheel corresponding with the 4th dynamotor 301 is connected with the second semiaxis 304,6th gear 406 to be arranged on the second semiaxis 304 and can with the second semiaxis 304 synchronous rotary, 7th gear 407 engages with the 5th gear 405 and octadentate is taken turns 408 and engaged with the 6th gear 406, and the 7th gear 407 and octadentate are taken turns 408 synchronization arrangement and can synchronous rotary.
Alternatively, first gear 401 and the 5th gear 405, second gear 402 and the 6th gear 406, the 3rd gear 403 and the 7th gear 407 and the 4th gear 404 and octadentate take turns 408 size can be identical respectively with the number of teeth, thus improve the commonality of gear structure.
As optional embodiment, the 3rd gear 403 and the 4th gear 404 can be fixed on the first gear wheel shaft 501, and the 7th gear 407 and octadentate are taken turns 408 and can be fixed on the second gear wheel shaft 502.Certainly, the 3rd gear 403 and the 4th gear 404 also can be configured to stepped gear or connection gear structure.Similarly, the 7th gear 407 and octadentate are taken turns 408 and also can be configured to stepped gear or join gear structure.
In some instances, as shown in Figure 2, anti-skidding synchro 503 can be arranged on the first semiaxis 204 and to be arranged to optionally engage the 6th gear 406, such as, 6th gear 406 can arrange joint gear ring towards the side of anti-skidding synchro 503, the sliding hub of anti-skidding synchro 503 and this joint gear ring adaptation.Thus, after anti-skidding synchro 503 engages, this second pair of wheel 72 is by synchronous rotary.
In other examples, as shown in Figure 3, anti-skidding synchro 503 to be arranged on the first power take-off shaft 202 and to be arranged to optionally engage the 5th gear 405, such as, 5th gear 405 can arrange joint gear ring towards the side of anti-skidding synchro 503, the sliding hub of anti-skidding synchro 503 and this joint gear ring adaptation.Thus, after anti-skidding synchro 503 engages, this second pair of wheel 72 is by synchronous rotary.
In other example, as shown in Figure 4, anti-skidding synchro 503 to be arranged on the first gear wheel shaft 501 and to be arranged to optionally engage the 7th gear 407, such as, 7th gear 407 can arrange joint gear ring towards the side of anti-skidding synchro 503, the sliding hub of anti-skidding synchro 503 and this joint gear ring adaptation.Thus, after anti-skidding synchro 503 engages, this second pair of wheel 72 is by synchronous rotary.
Alternatively, in the example of hgure 5, the 3rd dynamotor 201 and corresponding wheel be coaxially connected and the 4th dynamotor 301 be coaxially connected with corresponding wheel.Further, the 3rd dynamotor 201 and the 4th dynamotor 301 can be all wheel motors, and messenger chain is short thus, and transmission degradation of energy is few, and driving efficiency is high.
Further, as shown in Figure 5, anti-skidding synchro 503 can be arranged on the 3rd dynamotor 201 correspondence the first power take-off shaft 202 on and be arranged to optionally engage the second power take-off shaft 302 of the 4th dynamotor 301 correspondence.Thus, after anti-skidding synchro 503 engages, this second pair of wheel 72 is by synchronous rotary.
Generally speaking, can have the following advantages by tool according to the power drive system 100 of the embodiment of the present invention:
1) the mixed dynamic model formula of full gear is realized, and the first dynamotor 51 can directly output power to diff 63 by motor mechanical axis 33, transmission gear 313 and the first output gear 311, the power utilization rate of the first dynamotor 51 is high, avoids the degradation of energy that unnecessary intermediate transfer causes;
2) the first dynamotor 51 can carry out speed adjustment according to operating mode, thus coupling is from the power of driving engine 4;
3) can realize parking charging, and path is shorter, without adjoint degradation of energy, charge efficiency is high, can realize fast charge;
4) can realize that fuel oil drives separately, the pure several functions such as electronic, mixed dynamic, and above-mentioned functions can any switching laws in vehicle travel process, farthest can take into account driving handling and the fuel economy of vehicle;
5) can according to different drive patterns, suitable speed ratio is selected to generate electricity, generating efficiency is maximized, and driving engine 4 and the first dynamotor 51 can operate under most economical operating mode simultaneously, and then extend the service life of driving engine and the first dynamotor 51.
In addition, the vehicle comprising power drive system 100 as above is further provided according to embodiments of the invention.Should be understood that, all be well known for ordinary skill in the art for prior art as driving system, steering swivel system, brake system etc. according to other configuration example of the vehicle of the embodiment of the present invention, therefore the detailed description of conventional construction omitted herein.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this specification sheets or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (14)
1. for a power drive system for vehicle, it is characterized in that, comprising:
First input shaft and the second input shaft, described second input shaft is set on described first input shaft coaxially, and each in described first input shaft and described second input shaft is all fixedly installed driving gear;
First output shaft and the second output shaft, in each in described first output shaft and described second output shaft, equal empty set is provided with driven gear, described driving gear and described driven gear engage respectively accordingly, described first output shaft is provided with on the first efferent, described second output shaft and is provided with the second efferent, one of them overhead cover in wherein said first output shaft and described second output shaft is provided with an intermediate idler and is also fixedly installed a transmission gear, and described intermediate idler engages with driving gear described in one of them;
Motor mechanical axis, described motor mechanical axis overhead cover is provided with motor power axle first gear and motor mechanical axis second gear, described motor mechanical axis second gear engages with described intermediate idler and described motor mechanical axis first gear engages with described transmission gear, each in described motor mechanical axis first gear and described motor mechanical axis second gear by the synchronous effect of synchro with described motor mechanical axis synchronous rotary;
First dynamotor, described first dynamotor is connected with described motor mechanical axis; And
Driving engine, optionally engages at least one in described first input shaft and described second input shaft at described driving engine with described driving engine when carrying out transmission of power between input shaft.
2., according to claim 1 for the power drive system of vehicle, it is characterized in that, also comprise:
Double-clutch, described double-clutch has input end, the first mouth and the second mouth, described driving engine is connected with the input end of described double-clutch, first mouth of described double-clutch is connected with described first input shaft, and the second mouth of described double-clutch is connected with described second input shaft.
3. according to claim 2 for the power drive system of vehicle, it is characterized in that, described first input shaft is fixedly installed a gear driving gear, three gear driving gears, described second input shaft is fixedly installed two gear driving gears and four gear driving gears;
Described first output shaft overhead cover is provided with a gear driven gear, three gear driven gears, and described second output shaft overhead cover is provided with two gear driven gears, four gear driven gears; And.
A described gear driven gear and described three keep off and is provided with one or three between driven gear and keeps off synchro, and described two keep off driven gears and described four keeps off and be provided with two or four between driven gear and keep off synchro.
4. according to claim 2 for the power drive system of vehicle, it is characterized in that, between described motor mechanical axis first gear and described motor mechanical axis second gear, be provided with motor mechanical axis synchro.
5. according to claim 3 for the power drive system of vehicle, it is characterized in that, described intermediate idler empty set is arranged on described first output shaft and described transmission gear is fixedly installed on described first output shaft.
6. according to claim 3 for the power drive system of vehicle, it is characterized in that, described intermediate idler and described four keeps off driving gear and engages.
7. according to claim 1 for the power drive system of vehicle, it is characterized in that, described first efferent is be fixedly installed on the first output gear on described first output shaft, described second efferent is be fixedly installed on the second output gear on described second output shaft, and described first output gear and described second output gear engage with the main reduction gear driven gear on differential for vehicles respectively.
8. according to claim 4 for the power drive system of vehicle, it is characterized in that, when described vehicle is in parked state, described driving engine be arranged to by the Power output that produces to one of them driving gear described in described intermediate idler engaged transmission, and generating electricity to described first dynamotor to drive described first dynamotor described Power output by described motor mechanical axis synchro to the synchronous of described motor mechanical axis second gear.
9. according to claim 4 for the power drive system of vehicle, it is characterized in that, wherein a part of power can be exported to wheel using the power travelled as described vehicle by wherein output shaft by conjugation while described input end and described first mouth and described second mouth and another part power is exported to described first dynamotor by described motor mechanical axis generate electricity to drive described first dynamotor by described driving engine.
10. the power drive system for vehicle according to claim 1, is characterized in that, also comprise: the second dynamotor, wherein
The main reduction driven gear transmission of described second dynamotor and described vehicle; Or
Described second dynamotor is connected with the first output shaft; Or
Described second dynamotor is connected with described first input shaft; Or
The main reduction driven gear of described vehicle is arranged on diff, and described second dynamotor is two and is separately positioned on the both sides of described diff.
11. power drive systems for vehicle according to any one of claim 1-10, is characterized in that,
Described driving engine and/or described first dynamotor are for driving pair of wheels; And
Described power drive system also comprises:
3rd dynamotor and the 4th dynamotor, described 3rd dynamotor is arranged to link with in second pair of wheel, described 4th dynamotor is arranged to link with another in described second pair of wheel, described pair of wheels is a pair in front-wheel and trailing wheel, and described second pair of wheel is other a pair in described front-wheel and described trailing wheel;
Anti-skidding synchro, described anti-skidding synchro is arranged to optionally synchronously described second pair of wheel, thus makes described second pair of wheel synchronous rotary.
12. power drive systems for vehicle according to claim 11, is characterized in that,
The first power take-off shaft that described 3rd dynamotor is corresponding is provided with the first gear, and the described wheel that described 3rd dynamotor is corresponding is connected with the first semiaxis, and described first semiaxis is provided with the second gear; Described power drive system also comprises the 3rd gear and the 4th gear, described 3rd gear and described first gears meshing and described 4th gear and described second gears meshing, described 3rd gear and described 4th gear coaxially arranged and can synchronous rotary; And
The second power take-off shaft that described 4th dynamotor is corresponding is provided with the 5th gear, and the described wheel that described 4th dynamotor is corresponding is connected with the second semiaxis, described second semiaxis is provided with the 6th gear; Described power drive system also comprises the 7th gear and octadentate wheel, described 7th gear and described 5th gears meshing and described octadentate is taken turns and described 6th gears meshing, and described 7th gear and described octadentate are taken turns coaxially arranged and can synchronous rotary; Wherein
Described anti-skidding synchro to be arranged on described first semiaxis and to be arranged to optionally engage described 6th gear; Or
Described anti-skidding synchro to be arranged on described first power take-off shaft corresponding to the 3rd dynamotor and to be arranged to optionally engage described 5th gear; Or
Described 3rd gear and described 4th gear are fixed on the first gear wheel shaft, and described 7th gear and described octadentate are taken turns and be fixed on the second gear wheel shaft; And described anti-skidding synchro to be arranged on described first gear wheel shaft and to be arranged to optionally engage described 7th gear.
13. power drive systems for vehicle according to claim 11, it is characterized in that, first power take-off shaft corresponding to described 3rd dynamotor and corresponding described wheel are coaxially connected and the second power take-off shaft corresponding to described 4th dynamotor is coaxially connected with corresponding described wheel, and described anti-skidding synchro to be arranged on the first power take-off shaft corresponding to described 3rd dynamotor and to be arranged to optionally engage the second power take-off shaft corresponding to described 4th dynamotor.
14. 1 kinds of vehicles, is characterized in that, comprise the power drive system for vehicle according to any one of claim 1-12.
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| CN201410458177.6A CN105459787B (en) | 2014-09-10 | 2014-09-10 | Power drive system for vehicle and the vehicle with the power drive system |
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| CN201410458177.6A CN105459787B (en) | 2014-09-10 | 2014-09-10 | Power drive system for vehicle and the vehicle with the power drive system |
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| CN105459787B CN105459787B (en) | 2018-04-20 |
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