CN105459792A - 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 PDF

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Publication number
CN105459792A
CN105459792A CN201410459667.8A CN201410459667A CN105459792A CN 105459792 A CN105459792 A CN 105459792A CN 201410459667 A CN201410459667 A CN 201410459667A CN 105459792 A CN105459792 A CN 105459792A
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China
Prior art keywords
gear
shaft
power
dynamotor
vehicle
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CN201410459667.8A
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Chinese (zh)
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CN105459792B (en
Inventor
廉玉波
阮鸥
翟震
吴飞
徐友彬
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BYD Co Ltd
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BYD Co Ltd
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Abstract

The invention discloses a power transmission system and a vehicle with the same. The power transmission system comprises a first input shaft, a second input shaft, a first output shaft, a second output shaft, a motor power shaft, a first motor generator, a reverse gear, a first reverse intermediate gear, a second reverse intermediate gear and an engine, wherein a transmission gear is fixed on the first input shaft or the second input shaft; the input shafts and the output shafts are in transmission through a gearshift gear pair; a motor power shaft gear which is in cooperation transmission with the transmission gear is arranged on the motor power shaft in an empty sleeving manner; the first motor generator is connected with the motor power shaft; the reverse gear, the first reverse intermediate gear and the second reverse intermediate gear can be linked; the second reverse intermediate gear is meshed with the first reverse intermediate gear and is meshed with a driving gear on one of the input shafts; the engine is selectively jointed to at least one input shaft. According to the power transmission system disclosed by the invention, the transmission modes are enriched, so that varied working conditions of charging during parking, synchronous driving and charging of the engine, and the like can be realized.

Description

For vehicle power drive system and there is its vehicle
Technical field
The present invention relates to technical field of vehicle, especially relate to a kind of power drive system for vehicle, 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, and transmission mode is few, and driving efficiency is on the low side.Such as, for most hybrid vehicle, it often realizes process of charging when driving, and charge mode, charge path etc. are comparatively single, and charge efficiency is poor.
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, the present invention proposes a kind of power drive system for vehicle, this power drive system has abundant transmission mode.
The invention allows for a kind of vehicle, this vehicle comprises above-mentioned power drive system.
According to the power drive system for vehicle of the embodiment 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, each in described first input shaft and described second input shaft is all fixedly installed driving gear, described first input shaft or described second input shaft are fixedly installed transmission 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 are provided with on the first efferent, described second output shaft and are provided with the second efferent; Motor mechanical axis, described motor mechanical axis overhead cover is provided with motor power shaft gear, described motor power shaft gear is arranged to and described transmission gear transmission, and described motor power shaft gear makes described motor power shaft gear and described motor mechanical axis synchronous rotary by the synchronous effect of synchro; First dynamotor, described first dynamotor is connected with described motor mechanical axis; Reverse gear, the first reverse idler gear, the second reverse idler gear, described reverse gear and the equal empty set of described first reverse idler gear are on described motor mechanical axis, described reverse gear is arranged to optionally link with described first reverse idler gear, and described second reverse idler gear engages with described first reverse idler gear and described second reverse idler gear engages with one of them driving gear; Driving engine, described driving engine is arranged to optionally engage at least one in described first input shaft and described second input shaft.
According to the power drive system for vehicle of the embodiment of the present invention, enrich transmission mode, the various working such as parking charging and the driving limit charging of driving engine limit can have been realized.
Embodiment according to a further aspect of the invention, proposes a kind of vehicle comprising above-mentioned power drive system.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of power drive system according to an embodiment of the invention;
Fig. 2 is the schematic diagram of power drive system according to an embodiment of the invention;
Fig. 3 is the schematic diagram of power drive system according to an embodiment of the invention;
Fig. 4 is the schematic diagram of power drive system according to an embodiment of the invention;
Fig. 5 is the schematic diagram of power drive system according to an embodiment of the invention;
Fig. 6 is the schematic diagram of power drive system according to an embodiment of the invention;
Fig. 7 is the schematic diagram of power drive system according to an embodiment of the invention;
Fig. 8 is the schematic diagram of power drive system according to an embodiment of the 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 electrically connected maybe can communicate with one another; 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.
Below in conjunction with Fig. 1-Fig. 8, the power drive system 100 according to the embodiment of the present invention is described in detail, this power drive system 100 is applicable in the vehicle of such as hybrid vehicle, and as the power system of vehicle, for normal vehicle operation provides sufficient power and electric energy.
Power drive system 100 according to the embodiment of the present invention mainly comprises two large divisions, one can be propulsion source, propulsion source can be driving engine 4, dynamotor etc., it two can be change-speed box, change-speed box, for realizing the speed changing function to propulsion source outputting power, meets vehicle driving requirements or charging requirement etc.
Such as, in certain embodiments, as Figure 1-Figure 8, power drive system 100 can comprise driving engine 4, first dynamotor 51 and change-speed box, but is not limited thereto.
In certain embodiments, change-speed box mainly comprises multiple input shaft (such as, first input shaft 11, second input shaft 12), multiple output shaft (such as, first output shaft 21, second output shaft 22) and motor mechanical axis 3 and each axle on associated gear and shifting element (e.g., synchro).
When carrying out transmission of power between driving engine 4 and input shaft, driving engine 4 is arranged to optionally engage at least one in multiple input shaft.In other words, such as, when driving engine 4 is to input shaft transmission power, driving engine 4 optionally can engage to transmit power with in multiple input shaft, or driving engine 4 can also optionally engage to transmit power with two or more input shafts in multiple input shaft simultaneously.
Such as, in the example of Fig. 1-Fig. 8, multiple input shaft can comprise the first input shaft 11 and the second input shaft 12 two input shafts, and driving engine 4 optionally can engage to transmit power with one of the first input shaft 11 and second input shaft 12.Or especially, driving engine 4 can also engage to transmit power with the first input shaft 11 and the second input shaft 12 simultaneously.Certainly, should be understood that, driving engine 4 also can disconnect with the first input shaft 11 and the second input shaft 12 simultaneously.
For the ordinary skill in the art, the engagement state of driving engine 4 and input shaft is relevant with the concrete operating mode residing for power drive system 100, and this will describe in detail below in conjunction with specific embodiments, no longer describes in detail here.
Transmission can be carried out by shift gear pair between input shaft and output shaft.Such as, each input shaft is provided with gear driving gear, each output shaft is provided with gear driven gear, gear driven gear engages accordingly with gear driving gear, thus form the different gear pair of multipair speed ratio, and secondary about each shift gear, will describe in detail below.
As Figure 1-Figure 8, the first efferent 211 as the first output shaft 21 clutch end and be arranged on the first output shaft 21, alternatively, the first efferent 211 can be fixedly installed on the first output shaft 21.Similarly, the second output gear 221 as the second output shaft 22 clutch end and be arranged on the second output shaft 22, alternatively, the second output gear 221 can be fixedly installed on the second output shaft 22.
In certain embodiments, first efferent 211 is for being fixedly installed on the first output gear on the first output shaft 21, second output gear 221 is for being fixedly installed on the second output gear on the second output shaft 22, and the first output gear 211 and the second output gear 221 can engage with the main reduction gear driven gear 74 on differential for vehicles 75 respectively.
First dynamotor 51 is connected with motor mechanical axis 3.Need to illustrate a bit, in describing the invention, motor mechanical axis 3 can be the motor shaft of the first dynamotor 51 self.Certainly, be understandable that, the motor shaft of motor mechanical axis 3 and the first dynamotor 51 also can be two independent axles.In addition, also it should be noted that, in the description of the present invention about " dynamotor ", if do not have specified otherwise, it is the motor with electrical generator and motor function that this dynamotor can be understood as.
Motor mechanical axis 3 overhead cover is provided with motor power shaft gear 31, and in other words, motor power shaft gear 31 can rotate by differential relative to motor mechanical axis 3.Motor mechanical axis 31 is arranged to link with in input shaft, specifically, the first input shaft 11 or the second input shaft 12 is fixedly installed transmission gear 6, and motor power shaft gear 31 is arranged to carry out transmission with this transmission gear 6.
Such as in the example of Fig. 1-Fig. 8, transmission gear 6 is fixedly installed on the first input shaft 11, motor power shaft gear 31 can with this transmission gear 6 directly engaged transmission, certain motor power shaft gear 31 also can with this transmission gear 6 by intermediate idler 61 indirect drive, namely intermediate idler 61 engages with motor power shaft gear 31 and transmission gear 6 respectively, wherein intermediate idler 61 can empty set on the second output shaft 22, but to be not limited thereto.
Motor power shaft gear 31 makes this motor power shaft gear 31 and motor mechanical axis 3 synchronous rotary by the synchronous effect of synchro (such as, motor mechanical axis synchro 33c).
Below in conjunction with Fig. 1-Fig. 8, structure of reversing gear is described in detail.
As Figure 1-Figure 8, reverse gear 71 empty set is on motor mechanical axis 3, and in other words, reverse gear 71 can rotate by differential relative to motor mechanical axis 3.First reverse idler gear 72 can empty set on motor mechanical axis 3, second reverse idler gear 73 can empty set on the second output shaft 22, the first reverse idler gear 72 can to rotate and the second reverse idler gear 73 can rotate by differential relative to the second output shaft 22 by differential relative to motor mechanical axis 3.
Second reverse idler gear 73 engages with the first reverse idler gear 72 and the second reverse idler gear 73 also engages with one of them driving gear, such as two gear driving gear 2a.
Reverse gear 71 is arranged to optionally link with the first reverse idler gear 72, in other words, reverse gear 71 can with the first reverse idler gear 72 synchronous interaction, certain reverse gear 71 and the first reverse idler gear 72 also can disconnect.
In some embodiments of the invention, reverse gear 71 and the first reverse idler gear 72 realize synchronous interaction by the synchronous of reverse gear synchronizer 74c, that is, reverse gear synchronizer 74c is arranged for synchronous reverse gear 71 and the first reverse idler gear 72.
About the concrete setting position of reverse gear synchronizer 74c, the embodiment of composition graphs 1-Fig. 8, reverse gear synchronizer 74c can be arranged on the first reverse idler gear 72 and for engaging reverse gear 71, but the present invention is not limited to this.
As mentioned above, because the second reverse idler gear 73 keeps off driving gear 2a engaged transmission with the first reverse idler gear 72 and two respectively, therefore as preferred embodiment, second reverse idler gear 73 is configured to dual gear, a gear part 732 and two of the second reverse idler gear 73 is kept off driving gear 2a and is engaged, and another gear part 731 engages with the first reverse idler gear 72.Thus, the good speed ratio that reverses gear can not only be obtained, reverse gear simultaneously transmission of power time each gear can not interfere, ensure that the transmission of power that reverses gear is reliable.
Below the input shaft of change-speed box, output shaft and shift gear pair are described in detail.
In some embodiments of the present invention, as Figure 1-Figure 8, input shaft can be two, namely input shaft comprises the first input shaft 11 and the second input shaft 12, second input shaft 12 can be hollow shaft, and the first input shaft 11 can be solid axle, and a part for the first input shaft 11 can be embedded in the second hollow input shaft 12, another part of first input shaft 11 can be protruding vertically in the second input shaft 12, and the first input shaft 11 and the second input shaft 12 can be coaxially arranged.
Output shaft can be two, and namely the first output shaft 21 and the second output shaft 22, first output shaft 21 and the second output shaft 22 are arranged in parallel with input shaft, and the first output shaft 21 and the second output shaft 22 can be solid axle.
Six advance gears can be had according to the power drive system 100 of the embodiment of the present invention, particularly, first input shaft 11 can be arranged odd number gear driving gear, second input shaft 12 can be arranged even number gear driving gear, thus the first input shaft 11 is responsible for the transmission of power of odd number shift gear pair, the second input shaft 12 is responsible for the transmission of power of even number shift gear pair.
More specifically, as Figure 1-Figure 8, first input shaft 11 can be furnished with a gear driving gear 1a, three gear driving gear 3a and five gear driving gear 5a, second input shaft 12 can be furnished with two gear driving gear 2a and four or six gear driving gear 46a, each gear driving gear is all with the input shaft synchronous axial system of correspondence.
Accordingly, first output shaft 21 is provided with a gear driven gear 1b, two gear driven gear 2b, three gear driven gear 3b and four gear driven gear 4b, second output shaft 22 is provided with five gear driven gear 5b and six gear driven gear 6b, the equal empty set of each driven gear is on the output shaft of correspondence, and namely each driven gear can rotate by differential relative to the output shaft of correspondence.
Wherein, one gear driven gear 1b and keeps off driving gear 1a and engages thus form first gear pair, two gear driven gear 2b and two keep off driving gear 2a and engage thus form second gear pair, three gear driven gear 3b and three keep off driving gear 3a and engage thus form three and keep off gear pair, four gear driven gear 4b and four or six keep off driving gear 46a and engage thus form four and keep off gear pair, five gear driven gear 5b and five keep off driving gear 5a and engage thus form five and keep off gear pair, and six keep off driven gear 6b and four or six keeps off driving gear 46a and engage thus form six and keep off gear pair.
Wherein, four gear gear pairs and six gear gear pairs share one four or six gear driving gear 46a, thus save a driving gear, decrease the number of driving gear, such that the structure of power drive system 100 is compacter, volume is less, are convenient to arrange.
Owing to being empty set structure between driven gear and output shaft, therefore needing, synchro is set and carries out synchronous to corresponding driven gear with output shaft, to realize the output of power.
In certain embodiments, shown in composition graphs 1-Fig. 6, power drive system 100 comprises one or three gear synchro 13c, two or four gear synchro 24c, five gear synchro 5c, six gear synchro 6c and motor mechanical axis synchro 33c.
As shown in Figure 1, one or three gear synchro 13c to be arranged on the first output shaft 21 and to keep off between driven gear 3b at a gear driven gear 1b and three, one gear driven gear 1b or three gear driven gear 3b can engage with the first output shaft 21 by one or three gear synchro 13c, thus enables this driven gear and output shaft synchronous axial system.
Such as, shown in composition graphs 1, the sliding hub of one or three gear synchro 13c is moved to the left and three gear driven gear 3b can be engaged with the first output shaft 21, thus three gear driven gear 3b and the first output shaft 21 can synchronous axial system.The sliding hub of one or three gear synchro 13c moves right and a gear driven gear 1b can be engaged with the first output shaft 21, thus a gear driven gear 1b and the first output shaft 21 can synchronous axial system.
As shown in Figure 1, similarly, two or four gear synchro 24c to be arranged on the first output shaft 21 and to keep off between driven gear 4b at two gear driven gear 2b and four, two gear driven gear 2b or four gear driven gear 4b can engage with the first output shaft 21 by two or four gear synchro 24c, thus enable this driven gear and output shaft synchronous axial system.
Such as, shown in composition graphs 1, the sliding hub of two or four gear synchro 24c is moved to the left and two gear driven gear 2b can be engaged with the first output shaft 21, thus two gear driven gear 2b and the first output shaft 21 synchronous axial system.The sliding hub of two or four gear synchro 24c moves right and four gear driven gear 4b can be engaged with the first output shaft 21, thus four gear driven gear 4b and the first output shaft 21 synchronous axial system.
As shown in Figure 1, similarly, five gear synchro 5c are arranged on the second output shaft 22, five gear synchro 5c are positioned at the side of five gear driven gear 5b, such as left side, five gear synchro 5c are used for five gear driven gear 5b to engage with the second output shaft 22, and such as the sliding hub of five gear synchro 5c moves right, then five gear driven gear 5b can be engaged with the second output shaft 22, thus five gear driven gear 5b and the second output shaft 22 synchronous axial system.
As shown in Figure 1, similarly, six gear synchro 6c are arranged on the second output shaft 22, six gear synchro 6c are positioned at the side of six gear driven gear 6b, such as left side, six gear synchro 6c are used for six gear driven gear 6b to engage with the second output shaft 22, and such as the sliding hub of six gear synchro 6c moves right, then six gear driven gear 6b can be engaged with the second output shaft 22, thus six gear driven gear 6b and the second output shaft 22 synchronous axial system.
Motor mechanical axis synchro 33c to be arranged on motor mechanical axis 3 and for engaging motor power shaft gear 31, motor mechanical axis synchro 33c can be positioned at the left side of motor power shaft gear 31, the sliding hub of motor mechanical axis synchro 33c moves right and motor power shaft gear 31 can be engaged with motor mechanical axis 3, thus make motor power shaft gear 31 can with motor mechanical axis 3 synchronous axial system.
In some embodiments of the invention, can transmission of power be carried out by double-clutch 2d or be separated between the first input shaft 11 of driving engine 4 and change-speed box and the second input shaft 12.
Shown in Fig. 1-Fig. 8, double-clutch 2d has input end 23d, the first mouth 21d and the second mouth 22d, driving engine 4 is connected with the input end 23d of double-clutch 2d, specifically, driving engine 4 can pass through the various ways such as flywheel, bumper or reverse plate and is connected with the input end 23d of double-clutch 2d.
The first mouth 21d of double-clutch 2d is connected with the first input shaft 11, thus this first mouth 21d and the first input shaft 11 synchronous rotary.The second mouth 22d of double-clutch 2d is connected with the second input shaft 12, thus this second mouth 22d and the second input shaft 12 synchronous rotary.
Wherein, the input end 23d of double-clutch 2d can be the housing of double-clutch 2d, and its first mouth 21d and the second mouth 22d can be two clutch plates.Usually, housing and two clutch plates can all disconnect, namely input end 23d and the first mouth 21d and the second mouth 22d all disconnects, when needs engage one of them clutch plate, housing can be controlled carry out engaging thus synchronous rotary with corresponding clutch plate, namely input end 23d engages with one of the first mouth 21d and the second mouth 22d, thus the power that input end 23d transmits can by an output in the first mouth 21d and the second mouth 22d.
Especially, housing also can engage with two clutch plates simultaneously, namely input end 23d also can engage with the first mouth 21d and the second mouth 22d simultaneously, thus the power that input end 23d transmits can be exported by the first mouth 21d and the second mouth 22d simultaneously.
Be to be understood that, the concrete engagement state of double-clutch 2d is controlled the impact of strategy, for a person skilled in the art, can transmission mode needed for reality and adaptive settings control policy, thus can switch in the various modes that input end 23d all disconnects with two mouths and input end 23d and two mouths one of at least engage.
Power generation in parking, double-clutch 2d driving limit, the limit charging simultaneously in joint situation is comprised according to some typical conditions of the power drive system 100 of the embodiment of the present invention.
First this typical condition of power generation in parking is described, when vehicle is in parked state, driving engine 4 is arranged to the Power output of generation to transmission gear 6, and output power to the first dynamotor 51 by motor mechanical axis synchro 33c to the synchronous of motor power shaft gear 31, thus the first dynamotor 51 is driven to generate electricity.
Specifically, the specific embodiment of composition graphs 1-Fig. 8, power can be exported to the first input shaft 11 by double-clutch 2d by driving engine 4 after vehicle parking, transmission gear 6 on this first input shaft 11 is link with the motor power shaft gear 31 on motor mechanical axis 3, control motor mechanical axis synchro 33c and engage motor mechanical axis 3 and motor power shaft gear 31, the power that then driving engine 4 exports will from the first input shaft 11, transmission gear 6, intermediate idler 61, motor power shaft gear 31 and motor mechanical axis synchro 33c export motor mechanical axis 3 to, this part power final exports to the first dynamotor 51 from motor mechanical axis 3, thus drive the first dynamotor 51 to generate electricity as electrical generator.
Thus, achieve power generation in parking function, enriched charge mode, and under power generation in parking operating mode, vehicle remains static, the power of driving engine 4 all for charging, can improve charge efficiency, realizes quick function of supplying power.
Secondly the limit driving limit charging operating mode of double-clutch 2d simultaneously in joint situation is described, under this operating mode, wherein a part of power can be exported to wheel using the power travelled as vehicle by a wherein output shaft by conjugation while input end 23d and the first mouth 21d and the second mouth 22d by driving engine 4, and another part power is exported to the first dynamotor 51 by motor mechanical axis 3, thus the first dynamotor 51 is driven to generate electricity.
Specifically, specific embodiment shown in composition graphs 1-Fig. 8, under this operating mode, a part of power of driving engine 4 can input from the second input shaft 12 and can export from the first output shaft 21 or the second output shaft 22, such as secondary by second gear, four gear gear pairs or six gear gear pairs export, another part power of driving engine 4 can input from the first input shaft 11 and by transmission gear 6, intermediate idler 61, motor power shaft gear 31, motor mechanical axis synchro 33c, the first dynamotor 51 is exported in this path of motor mechanical axis 3, thus drive the first dynamotor 51 to generate electricity.
Because tradition has in the power drive system of double-clutch, double-clutch 2d only has a power-transfer clutch in running order at synchronization, and achieve the breakthrough application to double-clutch 2d according to the power drive system 100 of the embodiment of the present invention, i.e. under two whole engagement states of power-transfer clutch of double-clutch 2d (input end 23d engages the first mouth 21d and the second mouth 22d simultaneously), a part of power of driving engine 4 is exported by an output shaft drives vehicle to travel, another part power then exports to the first dynamotor 51, drive motor generates electricity, enrich transmission mode, take into account vehicle to travel and charging requirement.
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, wherein in some embodiments, the second dynamotor 52 can with main reduction gear driven gear 74 transmission, the motor shaft of the second dynamotor 52 such as, can arrange gear, and this gear and main reduction gear driven gear 74 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.For another example, in some embodiments again, the second dynamotor 52 is two and is separately positioned on the both sides of diff 75, and such as these two the second dynamotors 52 can become one with diff 75.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, or the second dynamotor 52 is two and drives a trailing wheel respectively by a speed reduction gearing.
Be understandable that, about the concrete setting position of the second dynamotor 52, the set-up mode in above-mentioned any embodiment can be adopted, or also above-mentioned any embodiment can be carried out organic assembling.
Describe the electronic differential lock construction according to the embodiment of the present invention in detail below with reference to Fig. 5-Fig. 8, 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 shown in Figure 5-Figure 8, 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 76,3rd dynamotor 201 and the 4th dynamotor 301 are arranged for driving second pair of wheel 77, wherein pair of wheels 76 is a pair in front-wheel and trailing wheel, and the second pair of wheel 77 is other a pair in front-wheel and trailing wheel.In the example of Fig. 5-Fig. 8, driving engine 4 and the first dynamotor 51 drive front-wheel, and the 3rd dynamotor 201 and the 4th dynamotor 301 are respectively used to driving two trailing wheels.
Shown in composition graphs 5-Fig. 8,3rd dynamotor 201 is arranged to link with in second pair of wheel 77, 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 77, 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. 5-Fig. 8, 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 77, thus make second pair of wheel 77 synchronous rotary, in other words, the synchronous second pair of wheel 77 (namely anti-skidding synchro 503 is in engagement state) of anti-skidding synchro 503, formed between second pair of wheel 77 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 77 with identical rotational speed.
Thus, by arranging the 3rd dynamotor 201 and the 4th dynamotor 301 individually drives second pair of wheel 77, thus the differential that can realize second pair of wheel 77 rotates, and when there is one of them tyre skidding phenomenon, anti-skidding synchro 503 can synchronous second pair of wheel 77 to make second pair of wheel 77 synchronous rotary, jointly after realizing the power coupling that two motors (can certainly be) export drive second pair of wheel 77 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 5-Fig. 8 of the 3rd dynamotor 201, the 4th dynamotor 301 and wheel is described in detail.
In certain embodiments, as shown in Figure 5-Figure 7, 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 Figure 5-Figure 7, 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 Figure 5-Figure 7, 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 5, 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 77 is by synchronous rotary.
In other examples, as shown in Figure 6, 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 77 is by synchronous rotary.
In other example, as shown in Figure 7, 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 77 is by synchronous rotary.
Alternatively, in the example of fig. 8, 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 8, 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 77 is by synchronous rotary.
The typical condition of power drive system 100 shown in Fig. 1 is simply described referring to Fig. 1.
Parking charging operating mode:
The input end 23d of double-clutch 2d engages the first mouth 21d and disconnects with the second mouth 22d, motor mechanical axis synchro 33c engages motor power shaft gear 31, thus the power that driving engine 4 exports passes to the first dynamotor 51 successively after the input end 23d of double-clutch 2d, the first mouth 21d, the first input shaft 11, transmission gear 6, intermediate idler 61, motor power shaft gear 31, motor mechanical axis synchro 33c, motor mechanical axis 3, thus the first dynamotor 51 is driven to generate electricity.
Constant-speed ratio charging can be realized under this operating mode, energy transfer efficiency is higher, and selecting about speed ratio, the maximum speed of revolution allowed with the additional components such as type selecting and periphery bearing of rotating speed during driving engine 4 parking, the first dynamotor 51 has direct relation, for the ordinary skill in the art, can comprehensively above etc. factor consider, the corresponding transmission speed ratio of flexible design, make power drive system 100 can utilize the energy of driving engine 4 substantially when power generation in parking, reach fast charge object.In brief, by the first input shaft 11, transmission gear 6, motor power shaft gear 31, this path transmission driving engine of motor mechanical axis 34 power time, be the object that can realize the charging of best constant-speed ratio, improve the fuel economy of charge efficiency and driving engine.
Pure electronic operating mode:
Motor mechanical axis synchro 33c engages motor power shaft gear 31, the power of the first dynamotor 51 exports the first input shaft 11 to by motor power shaft gear 31, transmission gear 6, one or three gear synchro 13c optionally engage a gear driven gear 1b or three gear driven gear 3b or five gear synchro 5c and engage five gear driven gear 5b, thus the power that the first dynamotor 51 exports exports from the first output shaft 21 by first gear pair or three gear gear pairs, or exported from the second output shaft 22 by five gear gear pairs.
The mixed condition of starting building of each gear:
Power drive system 100 be in a gear mixed start building condition time, the input end 23d of double-clutch 2d engages the first mouth 21d and disconnects with the second mouth 22d, one or three gear synchro 13c engage a gear driven gear 1b, and motor mechanical axis synchro 33c engages motor power shaft gear 31.
Thus the power that the first dynamotor 51 produces exports to the first input shaft 11 by motor power shaft gear 31, intermediate idler 61, transmission gear 6, the power that driving engine 4 exports exports the first input shaft 11 to by double-clutch 2d, is exported after two parts power is coupled on the first input shaft 11 by first gear pair from the first output shaft 21.
Under the mixed condition of starting building of this gear, the first dynamotor 51 can carry out speed governing, thus makes the first input shaft 11 synchronously can receive power from driving engine 4 and the first dynamotor 51 evenly, improves ride comfort, the harmony of transmission.
Power drive system 100 be in three gears mixed start building condition time, one or three gear synchro 13c engage three gear driven gear 3b, first dynamotor 51 to be still in the way footpath outputting power by above-mentioned one, by exporting from the first output shaft 21 after three gear gear pairs after power is coupled on the first input shaft 11.
Power drive system 100 be in five gears mixed start building condition time, five gear synchro 5c engage five gear driven gear 5b, first dynamotor 51 to be still in the way footpath outputting power by above-mentioned one, by exporting from the second output shaft 22 after five gear gear pairs after power is coupled on the first input shaft 11.
Power drive system 100 be in two gears mixed start building condition time, two or four gear synchro 24c engage two gear driven gear 2b, the input end 23d of double-clutch 2d engages the second mouth 22d and disconnects with the first mouth 21d, motor mechanical axis synchro 33c engages motor power shaft gear 31, one or three gear synchro 13c engage a gear driven gear 1b or three gear driven gear 3b, or five gear synchro 5c engage five gear driven gear 5b, namely power exports from the first output shaft 21 or the second output shaft 22 by the different engagement state of above-mentioned two synchros by the power of the first dynamotor 51.
A gear driven gear 1b or three gear driven gear 3b is engaged for one or three gear synchro 13c, the power that driving engine 4 produces exports the first output shaft 21 to by the second input shaft 12, second gear pair, the power that first dynamotor 51 produces is by exporting to the first output shaft 21 after motor power shaft gear 31, transmission gear 6, first input shaft 11, three gear gear pair or first gear pair, and two parts power is distributed to the wheel of both sides after the first output shaft 21 is coupled by diff 75.
Similarly, five gear driven gear 5b are engaged with five gear synchro 5c, then the power of the first dynamotor 51 exports from the second output shaft 22, the power of driving engine 4 is exported by the first output shaft 21, and two parts power is distributed to the wheel of both sides after the coupling of main reduction gear driven gear 74 place by diff 75.
In two kinds of situations, the first dynamotor 51 all can carry out speed governing, make the first output shaft 21 (one or three gear synchro 13c engage situation) or main reduction gear driven gear 74 (five gear synchro 5c engage situation) synchronously can receive power from driving engine 4 and the first dynamotor 51 evenly, improve ride comfort, the harmony of transmission.
Similarly, when four gears are mixed dynamic, keep off mixed dynamic basically identical with above-mentioned two, difference is mainly that two or four gear synchro 24c engage four gear driven gear 4b, and remainder and two keeps off mixing and moves substantially identical, repeats no more here.
Similarly, when six gears mix dynamic, the power of driving engine 4 is by exporting from the second output shaft 22 after six gear gear pairs, first dynamotor 51 can as above-mentioned two gears, power is exported from the first output shaft 21 or the second output shaft 22 by the conjugation of different synchro when mixing dynamic by four gears, two parts power can export after the second output shaft 22 or the coupling of main reduction gear driven gear 74 place, first dynamotor 51 can carry out speed governing simultaneously, make the second output shaft 22 or main reduction gear driven gear 74 synchronously can receive power from driving engine 4 and the first dynamotor 51 evenly, improve the ride comfort of transmission, harmony.
To sum up, for the ordinary skill in the art, can be according to actual needs, any mixing of starting building in condition moves path to select above-mentioned any each gear to mix neatly, greatly enrich the transmission mode of power drive system 100, improve Driving, enable vehicle adapt to different road conditions better, improve dynamic property, the fuel economy of vehicle
Driving limit, driving engine limit charging operating mode:
When power drive system 4 is in driving limit, even number gear limit charging operating mode, for two gear transmissions, the input end 23d of double-clutch 2d engages the first mouth 21d and the second mouth 22d simultaneously, two or four gear synchro 24c engage two gear driven gear 2b, and motor mechanical axis synchro 33c engages motor power shaft gear 31.
Thus the partial power of driving engine 4 is by exporting from the first output shaft 21 after the second input shaft 12, second gear pair, another part power of driving engine 4 by exporting to the first dynamotor 51 after the first input shaft 11, transmission gear 6, intermediate idler 61, motor power shaft gear 31, motor mechanical axis synchro 33c, motor mechanical axis 3, thus drives the first dynamotor 51 to generate electricity.
And when four gear transmissions or six gear transmissions, accordingly, two or four gear synchro 24c engage four gear driven gear 4b, or six gear synchro 6c engage six gear driven gear 6b, and remainder then keeps off transmission with two basically identical, repeats no more here.
Thus, the breakthrough application to double-clutch 2d is achieved according to the power drive system 100 of the embodiment of the present invention, i.e. under two whole engagement states of power-transfer clutch of double-clutch 2d (input end 23d engages the first mouth 21d and the second mouth 22d simultaneously), a part of power of driving engine 4 is exported by an output shaft drives vehicle to travel, another part power then exports to the first dynamotor 51, drive motor generates electricity, enrich transmission mode, taken into account vehicle and travel and charging requirement.
When power drive system is in driving limit, odd number gear limit charging operating mode, for a gear, the input end 23d of double-clutch 2d engages the first mouth 21d and disconnects with the second mouth 22d, one or three gear synchro 13c engage a gear driven gear 1b, and motor mechanical axis synchro 33c engages motor power shaft gear 31.
Thus the partial power of driving engine 4 is exported from the first output shaft 21 by the first input shaft 11, first gear pair, another part power of driving engine 4 exports to the first dynamotor 51 by the first input shaft 11, transmission gear 6, intermediate idler 61, motor power shaft gear 31, motor mechanical axis 3, thus drives the first dynamotor 51 to generate electricity.
And when three gear transmissions or five gear transmissions, accordingly, one or three gear synchro 13c engage three gear driven gear 3b, five gear synchro 5c engage five gear driven gear 5b, it is consistent that remainder keeps off transmission with one substantially, repeats no longer one by one here.
To sum up, for the ordinary skill in the art, can be according to actual needs, select any drive path charged in operating mode in driving limit, above-mentioned driving engine limit neatly, greatly enrich the transmission mode of power drive system 100, improve Driving, enable vehicle adapt to different road conditions better, improve dynamic property, the fuel economy of vehicle.And, in some above-mentioned driving limits, driving engine limit charging operating mode, when the partial power relating to driving engine is by the first input shaft 11, transmission gear 6, intermediate idler 61, motor power shaft gear 31, this path transmission of motor mechanical axis 3, be the object that can realize the charging of best constant-speed ratio, thus improve the fuel economy of charge efficiency and driving engine.
To reverse gear operating mode:
Power drive system 100 be in reverse gear operating mode time, double-clutch 2d input end 23d engages the second mouth 22d and disconnects with the first mouth 21d, reverse gear synchronizer 74c engages reverse gear 71, thus the power that driving engine 4 produces is by exporting from reverse gear 71 after double-clutch 2d, the second input shaft 12, second reverse idler gear 73, first reverse idler gear 72, reverse gear synchronizer 74c.
Shown in Fig. 2-Fig. 4, power drive system 100 in Fig. 2-Fig. 4 is compared with the power drive system 100 in Fig. 1, the key distinction is to add the second dynamotor 52 in the second dynamotor 52, Fig. 2 and is arranged on the both sides of diff 75, and can to become one structure with diff 75.In Fig. 3, the second dynamotor 52 is coaxially connected with the first output shaft 21.The second dynamotor 52 in Fig. 4 is coaxially connected with the first input shaft 11.Owing to adding the second dynamotor 52 in Fig. 2-Fig. 4 embodiment, thus the dynamic property of power drive system 100 is further improved.Fig. 2-Fig. 4 medium power driving system 100 and Fig. 1 medium power driving system 100 have similar typical condition, repeat no more here.
Shown in Fig. 5-Fig. 8, power drive system 100 in Fig. 5-Fig. 8 is to add rear wheel drive structure with the key distinction of the power drive system 100 shown in Fig. 1, mainly add the structures such as the 3rd genemotor 201, the 4th dynamotor 301 and anti-skidding synchro 503, specifically see the above-mentioned description to electronic differential lock construction, can repeat no more here.
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 (16)

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, each in described first input shaft and described second input shaft is all fixedly installed driving gear, described first input shaft or described second input shaft are also fixedly installed transmission 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 are provided with on the first efferent, described second output shaft and are provided with the second efferent;
Motor mechanical axis, described motor mechanical axis overhead cover is provided with motor power shaft gear, described motor power shaft gear is arranged to and described transmission gear transmission, and described motor power shaft gear makes described motor power shaft gear and described motor mechanical axis synchronous rotary by the synchronous effect of synchro;
First dynamotor, described first dynamotor is connected with described motor mechanical axis;
Reverse gear, the first reverse idler gear, the second reverse idler gear, described reverse gear and the equal empty set of described first reverse idler gear are on described motor mechanical axis, described reverse gear is arranged to optionally link with described first reverse idler gear, and described second reverse idler gear engages with described first reverse idler gear and described second reverse idler gear also engages with one of them driving gear;
Driving engine, described driving engine is arranged to optionally engage at least one in described first input shaft and described second input shaft.
2. the power drive system for vehicle according to claim 1, 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. the power drive system for vehicle according to claim 2, is characterized in that,
Described first input shaft is fixedly installed a gear driving gear, three gear driving gears and five gear driving gears;
Described second input shaft is fixedly installed two gear driving gears and four or six gear driving gears;
Described first output shaft overhead cover is provided with a gear driven gear, two gear driven gears, three gear driven gears and four gear driven gears;
Described second output shaft overhead cover is provided with five gear driven gears and six gear driven gears;
A described gear driven gear and described three keeps off and is provided with one or three between driven gear and keeps off synchro, described two gear driven gears and described four keep off and are provided with two or four between driven gear and keep off synchro, the side of described five gear driven gears is provided with five gear synchros, the side of described six gear driven gears is provided with six gear synchros, described motor mechanical axis is provided with the motor mechanical axis synchro being positioned at described motor power shaft gear side.
4. the power drive system for vehicle according to claim 3, is characterized in that, also comprise: reverse gear synchronizer, and described reverse gear synchronizer is arranged for synchronous described reverse gear and described first reverse idler gear.
5. the power drive system for vehicle according to claim 4, is characterized in that, described reverse gear synchronizer to be arranged on described first reverse idler gear and for engaging described reverse gear.
6. according to claim 3 for the power drive system of vehicle, it is characterized in that, described second reverse idler gear empty set is on described second output shaft and keep off driving gear engage with described two.
7. according to claim 6 for the power drive system of vehicle, it is characterized in that, described second reverse idler gear is configured to dual gear, and the gear part and described two of described second reverse idler gear is kept off driving gear and to be engaged and another gear part engages with described first reverse idler gear.
8. according to claim 3 for the power drive system of vehicle, it is characterized in that, described transmission gear is fixed on described first input shaft, wherein
Described motor power shaft gear and the direct engaged transmission of described transmission gear; Or
Described motor power shaft gear and described transmission gear are by intermediate idler indirect drive.
9. 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, described second output gear and described reverse gear engage with the main reduction gear driven gear of described vehicle respectively.
10. power drive system according to claim 4, 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.
11. power drive systems according to claim 4, it is characterized in that, when described vehicle is in parked state, the Power output extremely described transmission gear that will produce is arranged to by described driving engine, 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 power shaft gear.
12. power drive systems according to claim 1, is characterized in that, described power drive system also comprises: the second dynamotor, wherein
The main reduction gear 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 gear 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.
13. power drive systems for vehicle according to any one of claim 1-12, 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.
14. power drive systems for vehicle according to claim 13, 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.
15. power drive systems for vehicle according to claim 13, 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.
16. 1 kinds of vehicles, is characterized in that, comprise the power drive system for vehicle according to any one of claim 1-15.
CN201410459667.8A 2014-09-10 2014-09-10 For vehicle power drive system and there is its vehicle Active CN105459792B (en)

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CN108001198A (en) * 2016-10-31 2018-05-08 比亚迪股份有限公司 The power drive system of vehicle and there is its vehicle

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