CN105398322B - Speed changer, power drive system and vehicle - Google Patents

Abstract

The invention discloses a kind of speed changer, power drive system and vehicle.The speed changer includes：Multiple input shafts；Multiple output shafts, pass through shift gear auxiliary driving between output shaft and input shaft；First reverse idler gear and the second reverse idler gear, the second reverse idler gear engage with the gear driving gear on one in input shaft, and the first reverse idler gear is arranged to optionally link with the second reverse idler gear；Motor power axle, motor power axle overhead set is provided with motor power axle first gear and motor power axle second gear, the motor power axle synchronizer being additionally provided with motor power axle between motor power axle first gear and motor power axle second gear, motor power axle first gear engages with the first reverse idler gear, and motor power axle second gear is arranged to and a linkage in input shaft.The speed changer of the present invention can at least enrich the transmission mode of the power drive system with the speed changer to a certain extent.

Description

Speed changer, power drive system and vehicle

Technical field

The present invention relates to technical field of vehicle, the PWTN more particularly, to a kind of speed changer, with the speed changer System, the vehicle with the power drive system.

Background technology

With the continuous consumption of the energy, the development and utilization of new energy vehicle has been increasingly becoming a kind of trend.Hybrid power Automobile is driven by engine and/or motor as one kind in new energy vehicle, has various modes, can improve Transmission efficiency and fuel economy.

But in correlation technique known for inventor, the speed changer structure in hybrid vehicle is typically complex, The drive path that can be provided is less, causes the power drive system transmission mode with the speed changer few and single, transmission effect Rate is relatively low.

The content of the invention

It is contemplated that at least solves one of above-mentioned technical problem of the prior art to a certain extent.

Therefore, the present invention proposes a kind of speed changer, the speed changer can at least enrich power transmission to a certain extent The transmission mode of system.

The invention also provides a kind of power drive system, the power drive system has abundant transmission mode.

The invention also provides a kind of vehicle, the vehicle includes above-mentioned power drive system.

Speed changer according to embodiments of the present invention, including：Multiple input shafts, each it is provided with gear master on the input shaft Moving gear；Multiple output shafts, gear driven gear, the gear driven gear and the gear are each provided with the output shaft Position driving gear accordingly engages；First reverse idler gear and the second reverse idler gear, second reverse idler gear Engaged with the gear driving gear on one in the input shaft, first reverse idler gear is arranged to optionally Linked with second reverse idler gear；Motor power axle, motor power axle overhead set are provided with motor power axle the One gear and motor power axle second gear, it is additionally provided with positioned at the motor power axle first gear on the motor power axle Motor power axle synchronizer between the motor power axle second gear, wherein the motor power axle first gear and institute State the first reverse idler gear engagement, the motor power axle second gear be arranged to it is one in the input shaft It is dynamic.

Speed changer according to embodiments of the present invention, the power with the speed changer can be at least enriched to a certain extent and passed The transmission mode of dynamic system.

The power drive system of embodiment according to a further aspect of the invention, including the speed changer in above-described embodiment and One dynamotor, first dynamotor are arranged to link with the motor power axle.

Power drive system according to embodiments of the present invention, there is abundant transmission mode.

The vehicle of embodiment according to a further aspect of the present invention, including the power drive system in above-described embodiment.

Brief description of the drawings

Fig. 1 is the schematic diagram of speed changer 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 speed changer in accordance with another embodiment of the present invention；

Fig. 4 is the schematic diagram of power drive system in accordance with another embodiment of the present invention；

Fig. 5 is the schematic diagram according to the power drive system of further embodiment of the present invention；

Fig. 6 is the schematic diagram according to the power drive system of further embodiment of the present invention；

Fig. 7 is the schematic diagram according to the power drive system of further embodiment of the present invention；

Fig. 8 is the schematic diagram according to the power drive system of further embodiment of the present invention.

Embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.

In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that at least two, such as two It is individual, three etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects Connect or electrically connect or can communicate with one another；Can be joined directly together, can also be indirectly connected by intermediary, can To be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, The concrete meaning of above-mentioned term 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 it " under " Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of Fisrt feature level height is less than second feature.

Power drive system 100 according to embodiments of the present invention is described in detail with reference to Fig. 1-Fig. 8, the power Transmission system 100 is normal vehicle operation suitable for the vehicle of such as hybrid vehicle, and as the dynamical system of vehicle Sufficient power and electric energy are provided.

Power drive system 100 according to embodiments of the present invention mainly includes two large divisions, and one can be power source, power Source can be engine 4, dynamotor etc., secondly can be speed changer (as shown in figures 1 and 3), speed changer be used for realization pair Power source exports the speed changing function of power, meets vehicle driving requirements or charging requirement etc..

For example, in certain embodiments, as shown in Fig. 2, Fig. 4-Fig. 8, power drive system 100 can include engine 4, First dynamotor 51 and speed changer, but not limited to this.

With reference to shown in Fig. 1, in certain embodiments, speed changer mainly includes multiple input shafts (for example, the first input shaft 11st, the second input shaft 12), multiple output shafts (for example, the first output shaft 21, second output shaft 22) and motor power axle 3 and each Associated gear and shifting element (e.g., synchronizer) on axle.

When entering action edge between engine 4 and input shaft and transmitting, engine 4 is arranged to be selectively engageable multiple defeated Enter at least one in axle.In other words, for example, when engine 4 transmits power to input shaft, engine 4 can be optionally Engaged with one in multiple input shafts to transmit power, or engine 4 can also optionally with multiple input shafts Two or more input shafts are simultaneously engaged with to transmit power.

For example, in Fig. 1-Fig. 8 example, multiple input shafts can include 12 liang of the first input shaft 11 and the second input shaft Root input shaft, engine 4 can be engaged optionally to transmit power with one of the first input shaft 11 and the second input shaft 12.Or Person, especially, engine 4 can also be simultaneously engaged with to transmit power with the first input shaft 11 and the second input shaft 12.Certainly, should Understand, engine 4 can also disconnect with the first input shaft 11 and the second input shaft 12 simultaneously.

For the ordinary skill in the art, the engagement state and power drive system of engine 4 and input shaft 100 specific operating mode is related, and this will in conjunction with specific embodiments be described in detail, no longer describes in detail here below.

It can be driven between input shaft and output shaft by shift gear pair.For example, it is respectively provided with each input shaft There is gear driving gear, gear driven gear, gear driven gear and gear driving gear pair are provided with each output shaft Ground engagement is answered, so as to form multipair speed than different gear pairs.

In some embodiments of the invention, speed changer can be five advance shift transmissions, i.e., with first gear pair, two Keep off gear pair, three gear gear pairs, four gear gear pairs and five gear gear pairs.But the present invention is not limited thereto, for this area For those of ordinary skill, it can be needed according to transmission and adaptability increases or decreases the secondary number of shift gear, however it is not limited to Five gear transmissions shown in the embodiment of the present invention.

As Figure 1-Figure 8, motor power axle first gear 31, motor power axle second are disposed with motor power axle 3 Gear 32 and motor power axle synchronizer 33c, 32 equal empty set of motor power axle first gear 31 and motor power axle second gear On motor power axle 3, that is to say, that motor power axle 3 and motor power axle first gear 31 can differential rotate, it is similar Ground, motor power axle 3 also being capable of differential rotations with motor power axle second gear 32.

Further, motor power axle synchronizer 33c is arranged on motor power axle first gear 31 and motor power axle second Between gear 32, motor power axle synchronizer 33c clutch collar can be along the axial movement of motor power axle 3, such as in Fig. 1-Fig. 8 Example in, motor power axle synchronizer 33c clutch collar can be under the driving of shifting fork mechanism along the axial direction of motor power axle 3 Motion to the left or to the right.

Motor power axle synchronizer 33c can be optionally by motor power axle first gear 31 and motor power axle second One of gear 32 engages with motor power axle 3.For example, motor power axle synchronizer 33c clutch collar is moved to the left and can engaged Motor power axle first gear 31, motor power axle second gear 32 can be engaged by moving right.

Explanation is needed a bit, for the ease of motor power axle first gear 31, motor power axle second gear 32 and motor Line shaft synchronizer 33c is engaged, the direction electricity of motor power axle first gear 31 and motor power axle second gear 32 Mechanomotive force axle synchronizer 33c side can be provided with engagement gear ring, and this for the ordinary skill in the art, should All it will be appreciated that.

Wherein, motor power axle first gear 31 be arranged to indirectly with the gear driving tooth on one in input shaft Wheel transmission.Specifically, power drive system 100 also includes the first reverse idler gear 72 and the second reverse idler gear 73, First reverse idler gear 72 is arranged to optionally link with the second reverse idler gear 73, in other words, during first reverses gear Between the reverse idler gear 73 of gear 72 and second can differential rotate, and when needing, the first reverse idler gear 72 can engage with the second reverse idler gear 73 so as to link.

Further, as Figure 1-Figure 8, the second reverse idler gear 73 and input shaft it is one on gear actively Gear engages, such as in Fig. 1-Fig. 8 example, the second reverse idler gear 73 is and two gear actives on the second input shaft 12 Gear 2a engagements.Thus, motor power axle first gear 31 with the first reverse idler gear 72 by engaging, so as to indirectly It is driven by the first reverse idler gear 72, the second reverse idler gear 73 with two gear driving gear 2a.

For motor power axle second gear 32, the gear is arranged to be linked with the one of input shaft , in other words, motor power axle second gear 32 and the second reverse idler gear 73 are (for example, second with same input shaft Input shaft) linked.In Fig. 1-Fig. 8 embodiment, motor power axle second gear 32 passes through intermediate idler 6 and second Four gear driving gear 4b linkages on input shaft 12.Alternatively, intermediate idler 6 can be structured as duplicate gear, and middle lazy A part for wheel 6 is engaged with four gear driving gear 4a, and another part and the motor power axle second gear 32 of intermediate idler 6 are nibbled Close, by the way that intermediate idler 6 is configured into dual gear structure, can relatively easily obtain required transmission speed ratio.Certainly, it is optional Ground, motor power axle second gear 32 can also be with the four gear direct engaged transmissions of driving gear 4a.

Wherein, motor power axle first gear 31 can be as the clutch end for operating mode of reversing gear, in other words, in the present invention Some embodiments in, the partial action of motor power axle first gear 31 equivalent to reverse gear effect, for exporting Keep off power.

Furthermore, it is desirable to explanation, above-mentioned " linkage " can be understood as multiple parts (for example, two) coupled movements, So that two parts link as an example, wherein during a part motion, another part also moves therewith.

For example, in some embodiments of the invention, gear and axle linkage can be understood as when gear rotates and it The axle of linkage also will rotation, or when the axle rotate, the gear that is linked with it will also rotate.

And for example, when the linkage of axle and axle can be understood as that an axle rotates wherein, another axle being linked with it also general Rotation.

For another example, linked when gear and gear-linked can be understood as that a gear rotates wherein, with it another Gear also will rotation.

In the description about " linkage " below the present invention, if without specified otherwise, it is understood in this way.

As shown in Fig. 2, Fig. 4-Fig. 8, the first dynamotor 51 is arranged to link with motor power axle 3.For example, the One dynamotor 51, can be by caused power output to motor power axle 3 when as electric motor operation.And for example, first When dynamotor 51 is as generator operation, the power from motor power axle 3 can be exported to the first dynamotor 51, So as to drive the first dynamotor 51 to be generated electricity.

Here, it is necessary to illustrate a bit, in the description about " dynamotor " of the invention, if without specified otherwise, The dynamotor can be understood as having generator and the motor of motor function.

Need explanation a bit, in the description of the invention, motor power axle 3 can be the first dynamotor 51 itself Motor shaft.It is, of course, understood that the motor shaft of the dynamotor 51 of motor power axle 3 and first can also be two lists Only axle.

As described above, the first reverse idler gear 72 and the second reverse idler gear 73 are optionally to be linked 's.In some embodiments of the invention, two idler gears are to engage connection by reverse gear synchronizer 74c synchronous effect Dynamic.Specifically, reverse gear synchronizer 74c is arranged for synchronous first reverse idler gear 72 and the second reverse idler gear 73。

On reverse gear synchronizer 74c set location, as Figure 1-Figure 8, it is provided with the first reverse idler gear 72 Tooth set 721, tooth set 721 can be that empty set is arranged on the second output shaft 22, and the empty set of the second reverse idler gear 73 is in the tooth On set 721.Reverse gear synchronizer 74c is arranged on tooth set 721 and is used for the second reverse idler gear 73.

Input shaft, output shaft and each shift gear are described in detail with reference to Fig. 1-Fig. 8 embodiment.

In some embodiments of the present invention, as Figure 1-Figure 8, input shaft can be two, i.e., input shaft includes first The input shaft 12 of input shaft 11 and second, the second input shaft 12 can be hollow shafts, and the first input shaft 11 can be solid shafting, first The a part of of input shaft 11 can be embedded in the second hollow input shaft 12, and another part of the first input shaft 11 can be from second Axially outward in input shaft 12, the first input shaft 11 and the second input shaft 12 can be coaxially arranged.

Output shaft can be two, i.e. the first output shaft 21 and the second output shaft 22, the first output shaft 21 and the second output Axle 22 is arranged in parallel with input shaft, and the first output shaft 21 and the second output shaft 22 can be solid shafting.

Power drive system 100 according to embodiments of the present invention can have five forward ranges, specifically, the first input shaft Odd number gear driving gear can be arranged on 11, can arrange that even number keeps off driving gear on the second input shaft 12, so as to which first is defeated Enter axle 11 and be responsible for the secondary power transmission of odd number shift gear, the second input shaft 12 is responsible for the secondary power transmission of even number shift gear.

More specifically, as Figure 1-Figure 8, a gear driving gear 1a, three gear masters can be disposed with the first input shaft 11 Moving gear 3a and five keeps off driving gear 5a, and the gear driving gears of two gear driving gear 2a and four can be disposed with the second input shaft 12 4a, each gear driving gear is with corresponding input shaft synchronous axial system.

Accordingly, a gear driven gear 1b, two gear driven gear 2b, three gear driven gears are provided with the first output shaft 21 3b and four keeps off driven gear 4b, is provided with five gear driven gear 5b on the second output shaft 22, each equal empty set of driven gear is right On the output shaft answered, i.e., each driven gear being capable of differential rotation relative to corresponding output shaft.

Wherein, a gear driven gear 1b is engaged with a gear driving gear 1a so as to form first gear pair, two gear driven tooths Wheel 2b is engaged with two gear driving gear 2a so as to form second gear pair, and three gear driven gear 3b engage with three gear driving gear 3a So as to form three gear gear pairs, four gear driven gear 4b are engaged with four gear driving gear 4a so as to form four gear gear pairs, five gears Driven gear 5b is engaged so as to form five gear gear pairs with five gear driving gear 5a.

Due to being empty set structure between driven gear and output shaft, it is therefore desirable to set synchronizer to corresponding driven gear Synchronized with output shaft, to realize the output of power.

In certain embodiments, with reference to shown in Fig. 1-Fig. 8, power drive system 100 includes one or three gear synchronizer 13c, two Four gear synchronizer 24c and five gear synchronizer 5c.

As shown in figure 1, one or three gear synchronizer 13c are arranged on the first output shaft 21 and positioned at a gear driven gear 1b and three Keep off between driven gear 3b, one or three gear synchronizer 13c can be by a gear driven gear 1b or three gear driven gear 3b and the first output Axle 21 is engaged, so that the driven gear being capable of synchronous axial system with output shaft.

For example, with reference to shown in Fig. 1, one or three gear synchronizer 13c clutch collars be moved to the left can by three gear driven gear 3b with First output shaft 21 engages, so as to which three gear driven gear 3b and the first output shaft 21 being capable of synchronous axial systems.One or three gear synchronizer 13c Clutch collar move right can by one gear driven gear 1b be engaged with the first output shaft 21, so as to one keep off driven gear 1b and first Output shaft 21 being capable of synchronous axial system.

As shown in figure 1, similarly, two or four gear synchronizer 24c are arranged on the first output shaft 21 and positioned at two gear driven tooths Between taking turns the gears of 2b and four driven gear 4b, two or four gear synchronizer 24c can by two gear driven gear 2b or four gear driven gear 4b with First output shaft 21 is engaged, so that the driven gear being capable of synchronous axial system with output shaft.

For example, with reference to shown in Fig. 1, two or four gear synchronizer 24c clutch collars be moved to the left can by two gear driven gear 2b with First output shaft 21 engages, so as to two gear driven gear 2b and the synchronous axial system of the first output shaft 21.Two or four gear synchronizer 24c's connects Trap, which moves right, to engage four gear driven gear 4b with the first output shaft 21, so as to four gear driven gear 4b and the first output The synchronous axial system of axle 21.

As shown in figure 1, similarly, five gear synchronizer 5c are arranged on the second output shaft 22, five gear synchronizer 5c are located at five Driven gear 5b side, such as left side are kept off, five gear synchronizer 5c are used to meet five gear driven gear 5b with the second output shaft 22 Close, such as five gear synchronizer 5c clutch collar moves right, then can engage five gear driven gear 5b with the second output shaft 22, from And five gear driven gear 5b and the synchronous axial system of the second output shaft 22.

Reference picture 1- Fig. 8 embodiment, because the first reverse idler gear 72 and the second reverse idler gear 73 are respectively positioned on On second output shaft 22, and five gear driven gear 5b also are located on the second output shaft 22, and five gear synchronizer 5c are served only for connecing Close five gear driven gear 5b, reverse gear synchronizer 74c is served only for engaging the first reverse idler gear 72 and the second reverse idler gear 73.Therefore as a preferred embodiment, the gear synchronizers of reverse gear synchronizer 74c and five 5c shares a shifting fork mechanism, by This reduces a set of shifting fork mechanism so that the structure of power drive system 100 is compacter, smaller.

It is understood that in the clutch collar by the gear synchronizer 5c and reverse gear synchronizer 74c of shifting fork mechanism driving five During action, with reference to shown in Fig. 1, when the gear synchronizer 5c of shift fork driving five of shifting fork mechanism clutch collar moves right, five gears Synchronizer 5c can engage five gear driven gear 5b, and now reverse gear synchronizer 74c clutch collar does not engage first and reversed gear center tooth The reverse idler gear 73 of wheel 72 and second.In the shift fork driving reverse gear synchronizer 74c of shifting fork mechanism clutch collar engagement first When reverse idler gear 72 and the second reverse idler gear 73, five gear synchronizer 5c clutch collar does not engage five gear driven gears 5b.Certainly, the action process of the gear synchronizers of reverse gear synchronizer 74c and five 5c clutch collar is driven herein in relation to shifting fork mechanism only It is schematical, it is impossible to be not understood as limiting a kind of of the present invention.

In some embodiments of the invention, the first input shaft 11 of engine 4 and speed changer and the second input shaft 12 it Between can be that action edge transmission or separation are entered by double clutch 2d.

Shown in reference picture 2, Fig. 4-Fig. 8, double clutch 2d has input 23d, the first output end 21d and the second output end 22d, engine 4 are connected with double clutch 2d input 23d, specifically, engine 4 can by flywheel, damper or The diversified forms such as reverse plate are connected with double clutch 2d input 23d.

Double clutch 2d the first output end 21d is connected with the first input shaft 11, so as to the first output end 21d and first The synchronous rotary of input shaft 11.Double clutch 2d the second output end 22d is connected with the second input shaft 12, so as to second output end 22d and the synchronous rotary of the second input shaft 12.

Wherein, double clutch 2d input 23d can be double clutch 2d housing, its first output end 21d and Two output end 22d can be two clutch plates.Usually, housing and two clutch plates can all disconnect, i.e. input 23d Disconnected with the first output end 21d and the second output end 22d, when needing to engage one of clutch plate, housing can be controlled With corresponding clutch plate engage so as to synchronous rotary, i.e. input 23d and the first output end 21d and the second output end 22d it One engagement, so as to which the input 23d power transmitted can be defeated by one in the first output end 21d and the second output end 22d Go out.

Especially, housing can also engage with two clutch plates simultaneously, i.e. input 23d can also export with first simultaneously 21d and the second output end 22d engagements are held, so as to which the input 23d power transmitted can be simultaneously by the first output end 21d and second Output end 22d is exported.

It should be appreciated that double clutch 2d specific engagement state is influenceed by control strategy, for the technology of this area For personnel, can according to actually required transmission mode adaptive settings control strategy, so as to input 23d with Switched in the various modes that two output ends are all off and at least one input 23d and two output ends engage.

With reference to Fig. 2-Fig. 8 to three power output shafts (i.e. the first output shaft 21, the second output shaft 22 and motor power Axle 3) relation between differential for vehicles 75 is described in detail.

The differential mechanism 75 of vehicle can be arranged between a pair of front-wheels or between a pair of rear wheels, in some examples of the present invention In, differential mechanism 75 is between a pair of front-wheels.The function of differential mechanism 75 is when turn inside diameter travels or on uneven road surface During traveling, driving wheels are made to be rolled with different angular speed, to ensure to make PURE ROLLING between two side drive wheels and ground. Main reducing gear driven gear 74 is provided with differential mechanism 75, such as main reducing gear driven gear 74 can be arranged in differential mechanism 75 On housing.Main reducing gear driven gear 74 can be bevel gear, but not limited to this.

Further, the first output shaft output gear 211, the first output shaft output gear are fixedly installed on the first output shaft 21 Wheel 211 engages biography with the synchronous axial system of the first output shaft 21, the first output shaft output gear 211 with main reducing gear driven gear 74 It is dynamic, so as to which the power from the first output shaft 21 can be transferred to main reducing gear driven tooth from the first output shaft output gear 211 Wheel 74 and differential mechanism 75.

Similarly, the second output shaft output gear 221, the second output shaft output gear are fixedly installed on the second output shaft 22 Wheel 221 engages biography with the synchronous axial system of the second output shaft 22, the second output shaft output gear 221 with main reducing gear driven gear 74 It is dynamic, so as to which the power from the second output shaft 22 can be transferred to main reducing gear driven tooth from the second output shaft output gear 221 Wheel 74 and differential mechanism 75.

As described above, motor power axle first gear 31 is reversed gear power as the clutch end output of reverse mode , therefore motor power axle first gear 31 equally engages with main reducing gear driven gear 74.And due to motor power axle first Gear 31 also engages with the first reverse idler gear 72 simultaneously, while in order to obtain the suitable fast ratio that reverses gear, as optional one Kind embodiment, motor power axle first gear 31 are configured to duplicate gear, the tooth of motor power axle first of the duplex toothing Wheel 31 a part engaged with the first reverse idler gear 72, the motor power axle first gear 31 of the duplex toothing it is another Engaged with main reducing gear driven gear 74 part.

In other words, as shown in Fig. 2, Fig. 4-Fig. 8, one of gear part 312 of motor power axle first gear 31 be with First reverse idler gear 72 is engaged and another gear part 311 is engaged with main reducing gear driven gear 74.Thus can not only It is enough to obtain the good fast ratio that reverses gear, while each gear will not interfere when the power that reverses gear transmits, power transmission is reversed gear in guarantee can Lean on.

Some typical conditions of power drive system 100 according to embodiments of the present invention include power generation in parking, double clutch 2d simultaneously engage with the case of while driving while charge, operating mode of reversing gear and the first dynamotor 51 2 keep off speed governing.

Power generation in parking this typical condition is described first, when vehicle is in parked state, engine 4 is arranged to produce Power output to input shaft one (input shaft to be linked with motor power axle second gear 32, such as Two input shafts 12), and outputed power by synchronizations of the motor power axle synchronizer 33c to motor power axle second gear 32 To the first dynamotor 51, so as to drive the first dynamotor 51 to be generated electricity.

Specifically, the specific embodiment with reference to shown in Fig. 2, Fig. 4-Fig. 8, engine 4 will can move after vehicle parking Power is exported to the second input shaft 12 by double clutch 2d, second input shaft 12 and the motor power on motor power axle 3 Axle second gear 32 is linkage, controlled motor line shaft synchronizer 33c engagement motor powers axle 3 and the tooth of motor power axle second Wheel 32, then the power that engine 4 exports will be from the second input shaft 12, intermediate idler 6, motor power axle second gear 32 and motor Line shaft synchronizer 33c is exported to motor power axle 3, and this final partial power is exported to the first electronic hair from motor power axle 3 Motor 51, so as to drive the first dynamotor 51 to be generated electricity as generator.

Hereby it is achieved that power generation in parking function, enriches charge mode, and vehicle is in static shape under power generation in parking operating mode State, the power of engine 4 can be completely used for charging, and improve charge efficiency, realize quick function of supplying power.

Secondly charged in driving operating mode, under the operating mode, engine 4 in the case of description double clutch 2d is simultaneously engaged with A portion can be moved by input 23d and conjugation while the first output end 21d and the second output end 22d Power is exported by a wherein output shaft and gives power of the wheel to be travelled as vehicle, and another part power is passed through into motor Power axle 3 is exported to the first dynamotor 51, so as to drive the first dynamotor 51 to be generated electricity.

Specifically, with reference to the specific embodiment of Fig. 2, Fig. 4-Fig. 8 examples, under the operating mode, a part of power of engine 4 It can be exported from the first output shaft 21 or the second output shaft 22, such as pass through first gear pair, three gear gear pairs or five gear gear pairs Output, another part power of engine 4 can be from motor power axle second gear 32, motor power axle synchronizer 33c, motor This path of power axle 3 is exported to the first dynamotor 51, so as to drive the first dynamotor 51 to generate electricity.

In the power drive system due to tradition with double clutch, double clutch 2d only has a clutch in synchronization Device is in running order, and power drive system 100 according to embodiments of the present invention is realized to the breakthrough of double clutch 2d Using that is, (input 23d simultaneously engages with the first output end 21d under double clutch 2d two clutch whole engagement states With the second output end 22d) so that a part of power of engine 4 is travelled by an output shaft output driving vehicle, another part Power then exports to generate electricity to the first dynamotor 51, motor, enriches transmission mode, takes into account vehicle traveling and charging It is required that.

Two gear speed-regulating functions of the first dynamotor 51 are described again, specifically, with reference to shown in Fig. 2, Fig. 4-Fig. 8, by It is arranged in motor power axle synchronizer 33c between motor power axle first gear 31 and motor power axle second gear 32, Motor power axle synchronizer 33c is switched to and the tooth of motor power axle second from the position engaged with motor power axle first gear 31 From the position engaged with motor power axle second gear 32 during the positions of the engagement of wheel 32 or in motor power axle synchronizer 33c During putting the position for switching to and being engaged with motor power axle first gear 31, the first dynamotor 51 can be to motor power axle 31 rotating speed is adjusted.

For example, with motor power axle synchronizer 33c from the position engaged with motor power axle first gear 31 switch to Illustrate exemplified by the position that motor power axle second gear 32 engages, because motor power axle first gear 31 and main reducing gear are driven The speed of gear 74 is not than the fast ratio with drive path between motor power axle second gear 32 and main reducing gear driven gear 74 With, therefore during handoff synchronizer synchronous motor line shaft second gear 32, motor power axle second gear 32 with Motor power axle 3 is that differential rotates, and can so increase the lock in time of synchronizer, while also increases the abrasion of synchronizer, Reduce transmission efficiency, easily occur power interruption or for a long time can not synchronously caused by pause and transition in rhythm or melody sense.

At this point it is possible to control rotating speed of first dynamotor 51 based on motor power axle second gear 32 and regulation motor The rotating speed of line shaft 3, i.e., lift or reduce turning for motor power axle 3 using the rotating speed of motor power axle second gear 32 as target Speed so that the rotating speed of motor power axle 3 can match (i.e. substantially phase within the most short time with motor power axle second gear 32 Deng or it is close), so that motor power axle synchronizer 33c can be quickly engaged motor power axle second gear 32 and motor Power axle 3, motor power axle synchronizer 33c synchronous required time is reduced, the transmission efficiency of vehicle is drastically increased, synchronously may be used Control property and synchronous real-time.In addition, motor power axle synchronizer 33c life-span is further extended, so as to reduce vehicle The cost of maintenance.

Similarly, switched in motor power axle synchronizer 33c from the position engaged with motor power axle second gear 32 During the position engaged with motor power axle first gear 31, the first dynamotor 51 can be based on the tooth of motor power axle first The rotating speed of the rotational speed regulation motor power axle 3 of wheel 31, i.e., lifted or reduced using the rotating speed of motor power axle first gear 31 as target The rotating speed of motor power axle 3 so that the rotating speed of motor power axle 3 can within the most short time with motor power axle first gear 31 matchings, so as to improve motor power axle synchronizer 33c joint efficiency.

To sum up, in short, motor power axle synchronizer 33c with motor power axle first gear 31 and motor power axle During one in two gears 32 engagement is switched to and engaged with another, the first dynamotor 51 is arranged to motor power axle Another rotating speed in first gear 31 and motor power axle second gear 32 carries out speed governing for target to motor power axle 3.

Thus, power drive system 100 according to embodiments of the present invention, motor power axle synchronizer 33c is in motor power When switching bonding station between axle first gear 31 and motor power axle second gear 32, by the first dynamotor 51 to electricity The speed governing of mechanomotive force axle 3 so that the rotating speed of motor power axle 3 can be with gear to be joined (such as the tooth of motor power axle first Wheel 31 or motor power axle second gear 32) rotational speed matches, i.e. the first dynamotor 51 can be with gear to be joined Rotating speed is that the rotating speed of motor power axle 3 is adjusted target, makes the rotating speed of the rotating speed and gear to be joined of motor power axle 3 Match in a short time, facilitate motor power axle synchronizer 33c engagement, so as to substantially increase transmission efficiency, reduce middle The transmission loss of energy.

For reverse mode possessed by power drive system 100 according to embodiments of the present invention, it is broadly divided into machinery and falls Gear pattern, electronic reverse mode and mixed dynamic reverse mode.

Mechanical reverse mode is the car-backing function that vehicle is realized using the power of engine 4, is reversed gear in vehicle in machinery During pattern, engine 4 as power source by the one of caused power output to input shaft, i.e., center tooth of being reversed gear with second The input shafts (for example, second input shaft 12) of the linkage of wheel 73, and by reverse gear synchronizer 74c to the second reverse idler gear 73 with The synchronization of first reverse idler gear 72 and output power to motor power axle first gear 31, motor power axle first gear 31 can finally output power to wheel, realize reversing.In short, when vehicle is in mechanical reverse mode, synchronization of reversing gear Device 74c engages the second reverse idler gear 73 and the first reverse idler gear 72.

Electronic reverse mode is the car-backing function that vehicle is realized using the first dynamotor 51, and electromotive inverted is in vehicle Gear pattern, the first dynamotor 51 is as power source and by motor power axle synchronizer 33c to the tooth of motor power axle first Wheel 31 synchronously outputs power to motor power axle first gear 31, and motor power axle first gear 31 finally can be by power Output realizes reversing to wheel.

That is, the first dynamotor 51 is now used as electric motor operation, and its caused power can pass sequentially through motor power Axle 3, motor power axle synchronizer 33c are exported to motor power axle first gear 31.

In short, it is in electronic reverse mode, motor power axle synchronizer 33c engagement motor powers axle 3 and electricity in vehicle Mechanomotive force axle first gear 31.

Mixed dynamic reverse mode is the car-backing function for realizing vehicle using the dynamotor 51 of engine 4 and first simultaneously, is mixed Dynamic reverse mode is the combination of above-mentioned mechanical reverse mode and electronic reverse mode.

Specifically, when vehicle is in mixed dynamic reverse mode, engine 4 is defeated by caused power as dynamic origin Go out one to input shaft, and motor power axle first gear is synchronously outputted power to by reverse gear synchronizer 74c 31。

At the same time, the first dynamotor 51 is used as another power source and by motor power axle synchronizer to motor The synchronization of power axle first gear 31 and output power to motor power axle first gear 31.That is, from the electricity of engine 4 and first The two-part power of dynamic generator 51 finally all exports from motor power axle first gear 31.

Under the pattern, reverse gear synchronizer 74c engages the second reverse idler gear 73 and the first reverse idler gear 72, motor Line shaft synchronizer 33c engagement motor powers axle 3 and motor power axle first gear 31.

Thus, the power drive system 100 can realize three kinds of reverse modes, i.e., mechanical reverse mode, the electronic mould that reverses gear Formula and mixed dynamic reverse mode, enrich operating mode of reversing gear, can flexibly be carried out according to actual conditions in three kinds of reverse modes Switching, meets driving demand.

For example, in the case of Vehicular battery carrying capacity abundance, electronic reverse mode can be used, so in reversing not Only will not discharge of noxious gases, and energy consumption can also be reduced, be moved backward especially for new driver for position, it may be necessary to grasp Work could repeatedly pour into vehicle specified location, and engine 4 be due to that can produce more pernicious gas in low-reverse, together When engine 4 be typically in non-economy rotary speed area in reversing, oil consumption is of a relatively high, now uses electronic reverse mode can be with Improve this problem well, discharge can not only be reduced, while realize that low-reverse energy consumption is relatively low as power using motor, There is certain improvement to the fuel economy of engine 4.

And for example, in the case where Vehicular battery carrying capacity is inadequate or relatively low, mechanical reverse mode can be used.For another example, In the case where needing quickly to move backward or needing the operating modes such as high-power reversing, then mixed dynamic reverse mode can be used, increase moving for vehicle Power, convenient reversing.

Certainly, the above-mentioned description as described in three kinds of reverse mode application environments is only illustrative, it is impossible to is not understood as to this A kind of limitation of invention or hint must use above-mentioned corresponding reverse mode in the case where vehicle is in above-mentioned environment.For this area Those of ordinary skill for, it is clear that can as needed or actual conditions specific to set falling needed under corresponding reversing environment Gear pattern.

According to the power drive system 100 of some embodiments of the present invention, can also set up the second dynamotor 52 with Increase the dynamic property of power drive system 100, enrich transmission mode.

For example, in wherein some embodiments, the second dynamotor 52 can be driven with main reducing gear driven gear 74, example Gear such as can be set on the motor shaft of the second dynamotor 52, the gear directly engages biography with main reducing gear driven gear 74 It is dynamic.And for example, in further embodiments, the second dynamotor 52 can also be arranged to be connected with the first input shaft 11 or with One output shaft 21 is connected.For another example, in still other embodiments, the second dynamotor 52 is two and is separately positioned on differential mechanism 75 both sides, such as this two the second dynamotor 52 can become one with differential mechanism 75.Or foregoing engine 4 and first dynamotor 51 be used for drive front-wheel, the second dynamotor 52 can also be wheel motor and be used for trailing wheel, or The second dynamotor of person 52 can drive two trailing wheels by a reducing gear, or the second dynamotor 52 is two And a trailing wheel is driven by a reducing gear respectively.

Electronic differential lock construction according to embodiments of the present invention is described in detail below with reference to Fig. 5-Fig. 8, the structure can be real Occur a pair of driving wheels that locking skids during wheel-slip phenomenon now, so as to improve skidding, improve trafficability energy.

As shown in Figure 5-Figure 8, the electronic differential lock construction includes the 3rd dynamotor 201, the 4th dynamotor 301 With anti-skidding synchronizer 503.Wherein, the dynamotor 51 of engine 4 and/or first is used to drive pair of wheels 76, the 3rd electricity The dynamic dynamotor 301 of generator 201 and the 4th is arranged for driving second pair of wheel 77, wherein before pair of wheels 76 is A pair in wheel and trailing wheel, second pair of wheel 77 is the another pair in front wheels and rear wheels.In Fig. 5-Fig. 8 example, start The dynamotor 51 of machine 4 and first drives front-wheel, and the 3rd dynamotor 201 and the 4th dynamotor 301 are respectively used to drive Move two trailing wheels.

With reference to shown in Fig. 5-Fig. 8, the 3rd dynamotor 201 is arranged to link with one in second pair of wheel 77, changes Yan Zhi, the 3rd dynamotor 201 can output power to a wheel to drive a vehicle wheel rotation, or the 3rd electricity Dynamic generator 201 can also absorb energy from a wheel, so as to be generated electricity.

Similarly, the 4th dynamotor 301 is arranged to and another linkage in second pair of wheel 77, in other words, the Four dynamotor 301 can output power to another wheel to drive another vehicle wheel rotation, or the 4th electronic Generator 301 can also absorb energy from another wheel, so as to be generated electricity.In Fig. 5-Fig. 8 example, the 3rd is electronic Generator 201 links with left rear wheel, and the 4th dynamotor 301 links with off hind wheel, but the present invention is not limited thereto.

Anti-skidding synchronizer 503 is arranged to optionally synchronous second pair of wheel 77, so that second pair of wheel 77 is same Step rotation, in other words, after the synchronous second pair of wheel 77 of anti-skidding synchronizer 503 (i.e. anti-skidding synchronizer 503 is in engagement state), Formed between second pair of wheel 77 and connect firmly form, will not differential rotation so as to synchronous rotary.

And when anti-skidding synchronizer 503 is off, the 3rd dynamotor 201 and the 4th dynamotor 301 Wheel corresponding to can driving respectively realizes the differential rotating function of two wheels, certainly, anti-skidding with different rotational speeds When synchronizer 503 is off, the 3rd dynamotor 201 and the 4th dynamotor 301 can also drive this second To wheel 77 with identical rotational speed.

Thus, by setting the 3rd dynamotor 201 and the 4th dynamotor 301 individually to drive second pair of car Wheel 77, it is anti-skidding same so as to realize that the differential of second pair of wheel 77 rotates, and when occurring in which a wheel-slip phenomenon Walk device 503 can synchronous second pair of wheel 77 so that second pair of synchronous rotary of wheel 77, realizes that two motors (can certainly be One) output power coupling after jointly driving second pair of operation of wheel 77, improve wheel-slip phenomenon, improve vehicle Handling capacity.

In short, power drive system 100 according to embodiments of the present invention, due to being provided with the edge of anti-skidding synchronizer 503 Therefore therefore mechanical no-spin lockup structure possessed by corresponding vehicle bridge (for example, back axle) can be cancelled, but functionally lead to The function of tradition machinery formula no-spin lockup can but be realized by crossing the synchronous effect of anti-skidding synchronizer 503, so that according to this The structure of the power drive system 100 of inventive embodiments is compacter, cost is lower.

Below to the 3rd dynamotor 201, kind of drive combination Fig. 5-Fig. 8 of the 4th dynamotor 301 and wheel Example be described in detail.

In certain embodiments, as shown in Figure 5-Figure 7, tooth is passed through between the 3rd dynamotor 201 and corresponding wheel Wheel construction indirect drive, similarly, can also be by between the gear structure between the 4th dynamotor 301 and corresponding wheel Connect transmission.

Transmission is carried out by gear structure to be easily achieved and simple in construction, and can obtain required gearratio, is driven Reliably.Also, the 3rd dynamotor 201 and the 4th dynamotor 301 pass through identical gear structure with corresponding wheel Power transmission is carried out, also improves the versatility of gear structure, while it is higher symmetrical also to have power drive system 100 Property, avoid center of gravity from too deviateing to side, enable centre position of the center of gravity preferably in two wheels or close to middle Position, improve the stability and reliability of power drive system 100.

Further, as optional embodiment, as shown in Figure 5-Figure 7, the 3rd dynamotor 201 and corresponding wheel Between used gear structure can include first gear 401, second gear 402, the 3rd gear 403 and the 4th gear 404 Four gears.

First gear 401 can be arranged on corresponding to the 3rd dynamotor 201 on first power output shaft 202, and first Gear 401 can be with the synchronous rotary of the first power output shaft 202.Wherein, the first power output shaft 202 can be used for output to come from the 3rd Power caused by dynamotor 201, or the first power output shaft 202 can be electronic to the 3rd by the anti-power output dragged of wheel The motor shaft of generator 201, the first power output shaft 202 and the 3rd dynamotor 201 can be same structure.Certainly it is optional The motor shaft of ground, the first power output shaft 202 and the 3rd dynamotor 201 can also be two single parts, now One power output shaft 202 is connected with the motor of the 3rd dynamotor 201.

The first semiaxis 204 is connected with 201 corresponding wheel of the 3rd dynamotor, second gear 402 is arranged on first And can be with the synchronous rotary of the first semiaxis 204 on semiaxis 204, the 3rd gear 403 is engaged with first gear 401 and the 4th gear 404 Engaged with second gear 402, and the 3rd gear 403 and the 4th gear 404 are coaxially arranged and can synchronous rotary.

Similarly, as shown in Figure 5-Figure 7, the gear structure used between the 4th dynamotor 301 and corresponding wheel The 5th gear 405, the 6th gear 406, the 7th gear 407 and eighth gear 408 totally four gears can be included.5th gear 405 can be arranged on corresponding to the 4th dynamotor 301 on second power output shaft 302 and can be with the second power output shaft 302 synchronous rotaries.Wherein, the second power output shaft 302 can be used for output to come from power caused by the 4th dynamotor 301, Or second power output shaft 302 can give the anti-power output dragged of wheel to the 4th dynamotor 301, the second power output shaft 302 and the 4th the motor shaft of dynamotor 301 can be same structure.Alternatively of course, the second power output shaft 302 and The motor shaft of four dynamotor 301 can also be that two single parts, now the second power output shaft 302 and the 4th are electronic The motor shaft of generator 301 is connected.

The second semiaxis 304 is connected with 301 corresponding wheel of the 4th dynamotor, the 6th gear 406 is arranged on second And can be with the synchronous rotary of the second semiaxis 304 on semiaxis 304, the 7th gear 407 is engaged with the 5th gear 405 and eighth gear 408 Engaged with the 6th gear 406, the 7th gear 407 and the synchronization arrangement of eighth gear 408 and can synchronous rotary.

Alternatively, the gear 405 of first gear 401 and the 5th, the gear 406 of second gear 402 and the 6th, the 3rd gear 403 Size and the number of teeth with the 7th gear 407 and the 4th gear 404 and eighth gear 408 can be identical respectively, so as to improve The versatility of gear structure.

As optional embodiment, the 3rd gear 403 and the 4th gear 404 can be fixed on first gear axle 501, 7th gear 407 can be fixed on second gear axle 502 with eighth gear 408.Certainly, the 3rd gear 403 and the 4th gear 404 can also be configured to stepped gear or connection gear structure.Similarly, the 7th gear 407 can also with eighth gear 408 It is configured to stepped gear or connection gear structure.

In some instances, as shown in figure 5, anti-skidding synchronizer 503 can be arranged on the first semiaxis 204 and be arranged to can The 6th gear 406 is selectively engaged, for example, the side of the 6th gear 406 towards anti-skidding synchronizer 503 can set soldered tooth Circle, the clutch collar of anti-skidding synchronizer 503 are adapted to the engagement gear ring.Thus, after anti-skidding synchronizer 503 engages, second pair of car 77 are taken turns by synchronous rotary.

In other examples, as shown in fig. 6, anti-skidding synchronizer 503 is arranged on the first power output shaft 202 and set Into the 5th gear 405 is selectively engageable, for example, the side of the 5th gear 405 towards anti-skidding synchronizer 503 can set and connect Gear ring is closed, the clutch collar of anti-skidding synchronizer 503 is adapted to the engagement gear ring.Thus, after anti-skidding synchronizer 503 engages, this second To wheel 77 by synchronous rotary.

In other example, as shown in fig. 7, anti-skidding synchronizer 503 is arranged on first gear axle 501 and be arranged to can The 7th gear 407 is selectively engaged, for example, the side of the 7th gear 407 towards anti-skidding synchronizer 503 can set soldered tooth Circle, the clutch collar of anti-skidding synchronizer 503 are adapted to the engagement gear ring.Thus, after anti-skidding synchronizer 503 engages, second pair of car 77 are taken turns by synchronous rotary.

Alternatively, in the example of fig. 8, the 3rd dynamotor 201 is coaxial connected with corresponding wheel and the 4th is electronic Generator 301 is coaxially connected with corresponding wheel.Further, the 3rd dynamotor 201 and the 4th dynamotor 301 To be wheel motor, thus driving-chain is short, and transmission energy loss is few, transmission efficiency.

Further, as shown in figure 8, anti-skidding synchronizer 503 can be arranged on corresponding to the 3rd dynamotor 201 first dynamic On power output shaft 202 and it is arranged to be selectively engageable the second power output shaft 302 corresponding to the 4th dynamotor 301. Thus, after anti-skidding synchronizer 503 engages, second pair of wheel 77 is by synchronous rotary.

The construction and allusion quotation of power drive system 100 in each specific embodiment are briefly described referring to Fig. 2, Fig. 4-Fig. 8 Type operating mode.

Embodiment one：

As shown in Fig. 2 engine 4 is connected with double clutch 2d input 23d, double clutch 2d the first output end 21d is connected with the first input shaft 11, and double clutch 2d the second output end 22d is connected with the second input shaft 12, double clutch 2d Input 23d and double clutch 2d the first output end 21d and the second output end 22d can be off simultaneously, or Person's double clutch 2d input 23d can engage with one of double clutch 2d the first output end 21d and the second output end 22d, Or double clutch 2d input 23d can connect simultaneously with double clutch 2d the first output end 21d and the second output end 22d Close.

Second input shaft 12 is hollow shaft structure, and the first input shaft 11 is solid shafting, and the second input shaft 12 is coaxially arranged On the first input shaft 11, and a part for the first input shaft 11 is axially outward out of second input shaft 12.

Driving gear 1a, three gears can be kept off with the one of the synchronous axial system of the first input shaft 11 actively by being provided with first input shaft 11 The gear driving gears of gear 3a and five 5a, a gear driving gear 1a are positioned at five gear driving gear 5a right side, three gear driving gear 3a Positioned at five gear driving gear 5a left side.

Being provided with second input shaft 12 can lead with the gears of the two gear driving gear 2a of the synchronous axial system of the second input shaft 12 and four Moving gear 4a, two gear driving gear 2a are located at left side and four gear driving gear 4a are located at right side.

First output shaft 21 and two input shafts are arranged in parallel, be set with the first output shaft 21 a gear driven gear 1b, Two gear driven gear 2b, three gear driven gear 3b and four gear driven gear 4b, an a gear driven gear 1b and gear driving gear 1a Directly engage, two gear driven gear 2b directly engage with two gear driving gear 2a, three gear driven gear 3b and three gear driving gears 3a is directly engaged, and four gear driven gear 4b directly engage with four gear driving gear 4a.

One or three gear synchronizer 13c and two or four gear synchronizer 24c, one or three gear synchronizers are additionally provided with first output shaft 21 13c optionally keeps off a gear driven gear 1b or three between a gear driven gear 1b and three gear driven gear 3b Driven gear 3b is synchronous with the first output shaft 21, and two or four gear synchronizer 24c are positioned at two gear driven gear 2b and four gear driven gears Between 4b, and it is optionally that two gear driven gear 2b or four gear driven gear 4b are synchronous with the first output shaft 21.

Second output shaft 22 is equally be arranged in parallel with two input shafts, and five gear driven gears are set with the second output shaft 22 5b, five gear driven gear 5b are directly engaged with five gear driving gear 5a, and five gear synchronizer 5c are additionally provided with the second output shaft 22, Five gear synchronizer 5c are used for five gear driven gear 5b are synchronous with the second output shaft 22.

Motor power axle 3 is be arranged in parallel with two input shafts, two output shafts, and motor is set with motor power axle 3 Power axle first gear 31 and motor power axle second gear 32, motor power axle first gear 31 are located at left side, motor power axle Second gear 32 is located at right side.

Motor power axle synchronizer 33c is additionally provided with motor power axle 3, motor power axle synchronizer 33c is located at motor Between line shaft first gear 31 and motor power axle second gear 32, motor power axle synchronizer 33c is used to optionally to Motor power axle first gear 31 is synchronous with motor power axle 3 or by motor power axle second gear 32 and motor power axle 3 It is synchronous.

In addition, as shown in Fig. 2 be also set with the first reverse idler gear 72 on the second output shaft 22, first reverses gear centre The side of gear 72 forms set 721 with teeth, and tooth covers 721 same empty sets on the second output shaft 22, the second reverse idler gear 73 Empty set is on tooth set 721, and the second reverse idler gear 73 engages with two gear driving gear 2a, and reverse gear synchronizer 74c is arranged in tooth Cover on 721 and can be used for the second reverse idler gear 73.

Motor power axle first gear 31 is configured to duplicate gear, a gear part of motor power axle first gear 31 312 engage with the first reverse idler gear 72, another gear part 311 of motor power axle first gear 31 and main reducing gear from Moving gear 74 directly engages.Intermediate idler 6 is set with the second output shaft 22 simultaneously, intermediate idler 6 keeps off driving tooths with four respectively Wheel 4b and motor power axle second gear 32 engage.

In addition, the first output shaft output engaged with main reducing gear driven gear 74 is fixedly installed on the first output shaft 21 The the second output shaft output gear engaged with main reducing gear driven gear 74 is fixedly installed on gear 211, the second output shaft 22 221.Also, the first dynamotor 51 is coaxially connected with motor power axle 3.

The typical condition of power drive system 100 shown in Fig. 2 is described in detail below.

Parking charging operating mode：

Double clutch 2d input 23d engages the second output end 22d and disconnected with the first output end 21d, motor power Axle synchronizer 33c engagement motor power axles second gear 32, so as to which the power that engine 4 exports passes through double clutch 2d's successively Input 23d, the second output end 22d, the second input shaft 12, four gear driving gear 4a, intermediate idler 6, motor power axle second The first dynamotor 51 is passed to after gear 32, motor power axle synchronizer 33c, motor power axle 3, so as to drive the first electricity Dynamic generator 51 is generated electricity.

It can realize that constant-speed ratio charges under the operating mode, energy transfer efficiency is higher, and on the selected of fast ratio, with engine The maximum speed that the additional components such as the type selecting of rotating speed, the first dynamotor 51 during 4 parking and periphery bearing are allowed There is direct relation, for the ordinary skill in the art, the factor such as above can be integrated and accounted for, flexible design phase The transmission speed ratio answered so that power drive system 100 can maximumlly utilize the energy of engine 4 in power generation in parking, reach To quick charge purpose.

Pure electronic operating mode：

Path one：Motor power axle synchronizer 33c engagement motor power axles first gear 31, the first dynamotor 51 is defeated The power gone out is exported by motor power axle first gear 31.

Path two：Motor power axle synchronizer 33c engagement motor power axles second gear 32, the first dynamotor 51 will Power is exported to the second input shaft 12,24 gear synchronizer 24c by motor power axle second gear 32, intermediate idler 6 and can connect Two gear driven gear 2b or four gear driven gear 4b are closed, so as to which the power that the first dynamotor 51 exports is eventually through two gear teeth Exported after wheel set or four gear gear pairs from the first output shaft 21.

Preferably, when being switched over to above-mentioned path, the first dynamotor 51 can be adjusted to motor power axle 3 Speed.

Describe to switch to path two from path one first：Now motor power axle synchronizer 33c from motor power axle The position of one gear 31 engagement is moved to the position engaged with motor power axle second gear 32, during this period, the first electronic hair Motor 51 can be adjusted using the rotating speed of motor power axle second gear 32 as target, make electricity to the rotating speed of motor power axle 3 The rotating speed of mechanomotive force axle 3 matches with motor power axle second gear 32, so as to which motor power axle synchronizer 33c can be quickly engaged Motor power axle second gear 32, improve synchronous efficiency.

Secondly description switches to path one from path two：Now motor power axle synchronizer 33c from motor power axle The position of two gears 32 engagement is moved to the position engaged with motor power axle first gear 31, during this period, the first electronic hair Motor 51 can be adjusted using the rotating speed of motor power axle first gear 31 as target, make electricity to the rotating speed of motor power axle 3 The rotating speed of mechanomotive force axle 3 matches with motor power axle first gear 31, so as to which motor power axle synchronizer 33c can be quickly engaged Motor power axle first gear 31, improve synchronous efficiency.

However, it is to be understood that above-mentioned speed-regulating mode is applicable not only to pure electronic operating mode, other are can be applicable to Operating mode, such as mixed condition etc. of starting building, as long as the operating mode (example that the engagement state for being related to motor power axle synchronizer 33c changes Such as from engaged with motor power axle first gear 31 switch to engaged with motor power axle second gear 32 or from motor The engagement of power axle second gear 32 switches to be engaged with motor power axle first gear 31), suitable for above-mentioned speed-regulating mode.

The mixed condition of starting building of each gear：

Power drive system 100 be in a gear it is mixed start building condition when, the gear driven gear of one or three gear synchronizer 13c engagements one 1b, double clutch 2d input 23d engage the first output end 21d and disconnected with the second output end 22d, and motor power axle is synchronous Device 33c engagement motor power axles first gear 31.

So as to which the power that engine 4 exports is exported by the first input shaft 11, first gear pair from the first output shaft 21, the The power of one dynamotor 51 output is directly exported by motor power axle first gear 31, and two parts power finally subtracts in master Coupled at fast device driven gear 74, the power after coupling distributes to the wheel of both sides from differential mechanism 75.

The gear is mixed to start building under condition, and the first dynamotor 51 can carry out speed governing, so that main reducing gear driven tooth Wheel 74 evenly can synchronously receive the power from the dynamotor 51 of engine 4 and first, improve transmission ride comfort, Harmony.

It is mixed dynamic that the mixed condition of starting building of two gears, the mixed condition of starting building of three gears, the mixed condition of starting building of four gears, five gears are in power drive system 100 During operating mode, similar in the mixed condition of starting building of a gear with power drive system 100, difference is the engagement state of respective synchronization device not Together, when two gears are mixed dynamic the power of the gear driven gear 2b of two or four gear synchronizer 24c engagements two and engine from the first output shaft 21 Output, when three gears are mixed dynamic, the power of the gear driven gear 3b of one or three gear synchronizer 13c engagements three and engine is from the first output shaft 21 outputs, when four gears mix dynamic, the power of the gear driven gear 4b of two or four gear synchronizer 24c engagements four and engine exports from first Axle 21 exports, and when five gears are mixed dynamic, the power of the gear driven gear 5b of five gear synchronizer 5c engagements five and engine is from the second output shaft 21 outputs.

Similarly, power drive system be in the mixed condition of starting building of above-mentioned two gears, the mixed condition of starting building of three gears, the mixed condition of starting building of four gears, Five gears are mixed start building condition when, the first dynamotor 51 can equally carry out speed governing, so that the energy of main reducing gear driven gear 74 Enough evenly synchronous ride comfort, coordinations for receiving the power from the dynamotor 51 of engine 4 and first, improving transmission Property.

Engine charges operating mode scheme one in driving：

When power drive system 100 is in when odd number gear carries out engine in driving and charges operating mode, it is driven with a gear Exemplified by, one or three gear synchronizer 13c engagements one gear driven gear 1b, double clutch 2d input 23d simultaneously with the first output end 21d and the second output end 22d engagements, motor power axle synchronizer 33c engagement motor power axles second gear 32.

So as to a part of power that engine 4 exports by the first input shaft 11, first gear pair from the first output shaft 21 Output, while another part power that engine 4 exports passes through the second input shaft 12, intermediate idler 6, the tooth of motor power axle second Exported after wheel 32, motor power axle 3 to the first dynamotor 51, so as to drive the first dynamotor 51 to generate electricity.

Similarly, when power drive system 100 is in three gears or five gear transmissions, it is in basic when a gear is driven with above-mentioned Unanimously, difference is the engagement state of corresponding synchronizer, for example, during three gear transmissions the gear of one or three gear synchronizer 13c engagements three from Moving gear 3b, the gear driven gear 5b of five gear synchronizer 5c engagements five when five gears are driven, when remaining is with a gear transmission substantially It is identical, repeat no more here.

The operating mode that charged in driving of above-mentioned odd number gear realizes the breakthrough application to double clutch 2d, i.e., double clutches Device 2d simultaneously engages with work, so as to enrich transmission mode, improves charging and drive efficiency.

When power drive system 100 is in when even number gear carries out engine in driving and charges operating mode, it is driven with two gears Exemplified by, two or four gear synchronizer 24c engagements two keep off driven gear 2b, and double clutch 2d input 23d connects with the second output end 22d Close and disconnected with the first output end 21d, motor power axle synchronizer 33c engagement motor power axles first gear 31.

So as to which the power that engine 4 exports is exported by the second input shaft 12, second gear pair from the first output shaft 21, together When wheel drag motor power axle 3 by the way that motor power axle first gear 31 is counter, so as to drive the first dynamotor 51 to generate electricity.

When power drive system 100 is in four ribs driving side charging operating mode, two gears are in power drive system 100 Basically identical during the operating mode that charged in driving, difference is the now gear driven gear 3b of two or four gear synchronizer 24c engagements four.

To sum up, for the ordinary skill in the art, above-mentioned start can neatly be selected according to being actually needed Any drive path that machine charge in operating mode in driving, it is greatly enriched the transmission mode of power drive system 100, raising Driving, enables the vehicle to better adapt to different road conditions, improves dynamic property, the fuel economy of vehicle.

Reverse gear operating mode：

Power drive system 100 be in machinery reverse gear operating mode when, synchronous first reverse idler gears of reverse gear synchronizer 74c 72 and second reverse idler gear 73, double clutch 2d input 23d engage the second output end 22d and with the first output end 21d disconnects, and the power that engine 4 exports passes through the second input shaft 12, the second reverse idler gear 73, the first reverse idler gear Exported after 72 from motor power axle first gear 31.

When power drive system 100 is in electronic reverse mode, motor power axle synchronizer 33c synchronous motor line shafts 3 and motor power axle first gear 31, the power of the first dynamotor 51 it is directly defeated by motor power axle first gear 31 Go out.

When power drive system 100 is in mixed dynamic reverse mode, motor power axle synchronizer 33c synchronous motor line shafts 3 and synchronous first reverse idler gear 72 of motor power axle first gear 31, reverse gear synchronizer 74c and the second reverse idler gear 73, the power that engine 4 exports is defeated by the second input shaft 12, the second reverse idler gear 73, the first reverse idler gear 72 Go out to motor power axle first gear 31, the power of the first dynamotor 51 and be directly output to motor power axle first gear 31, two parts power exports after being coupled at motor power axle first gear 31.

Embodiment two：

As shown in figure 4, the master of power drive system 100 in the embodiment and the power drive system 100 shown in Fig. 2 Distinguish the construction for being intermediate idler 6.In this embodiment, intermediate idler 6 is configured to duplicate gear, and has gear part 61st, 62, one of gear part 61 engages with four gear driving gear 4a, another gear part 62 and motor power axle second gear 32 engagements.Then can be basically identical with the power drive system 100 in Fig. 2 embodiments for remainder, repeat no more here.

Three-embodiment of embodiment six：

As shown in Figure 5-Figure 8, the power drive system 100 in some embodiments and the PWTN shown in Fig. 2 System 100 the main distinction be to add rear wheel drive structure, mainly add the 3rd genemotor 201, the 4th dynamotor The structure such as 301 and anti-skidding synchronizer 503, the above-mentioned description to electronic differential lock construction is for details, reference can be made to, is repeated no more here.

In addition, the car for including power drive system 100 as described above is further provided according to an embodiment of the invention .It should be appreciated that other compositions of vehicle according to embodiments of the present invention such as driving system, steering, braking system System etc. has been prior art and has been well known for ordinary skill in the art, therefore the detailed description to conventional construction is herein Omitted.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office What combined in an appropriate manner in one or more embodiments or example.In addition, those skilled in the art can say this Different embodiments or example described in bright book are engaged and combined.

Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changed, replacing and modification.

Claims (21)

1. A kind of 1. speed changer, it is characterised in that including：

   Multiple input shafts, each it is provided with gear driving gear on the input shaft；

   Multiple output shafts, gear driven gear, the gear driven gear and the gear are each provided with the output shaft Driving gear accordingly engages；

   First reverse idler gear and the second reverse idler gear, second reverse idler gear and one in the input shaft Gear driving gear engagement on individual, wherein on an output shaft, described first falls the second reverse idler gear empty set Gear idler gear is arranged to optionally link with second reverse idler gear；

   Motor power axle, the motor power axle overhead set are provided with motor power axle first gear and the tooth of motor power axle second Take turns, be additionally provided with the motor power axle positioned at the motor power axle first gear and the motor power axle second gear Between motor power axle synchronizer, wherein

   The motor power axle first gear is engaged with first reverse idler gear, and the motor power axle second gear is set It is set to and one linkage in the input shaft.
2. 2. speed changer according to claim 1, it is characterised in that also include：

   Reverse gear synchronizer, the reverse gear synchronizer are arranged for synchronous first reverse idler gear and described second and reversed gear Idler gear.
3. 3. speed changer according to claim 2, it is characterised in that set with teeth is set on first reverse idler gear, On tooth set, the reverse gear synchronizer is arranged on the tooth and put and for engaging the second reverse idler gear empty set Second reverse idler gear.
4. 4. speed changer according to claim 2, it is characterised in that

   The input shaft includes：First input shaft and the second input shaft, second input shaft are coaxially set in described first On input shaft；

   The multiple output shaft includes：First output shaft and the second output shaft, first output shaft and second output shaft It is be arranged in parallel with input shaft.
5. 5. speed changer according to claim 4, it is characterised in that a gear driving tooth is provided with first input shaft Wheel, three gear driving gears and five keep off driving gears, and two gear driving gear and four gear driving tooths are provided with second input shaft Wheel；

   A gear driven gear, two gear driven gears, three gear driven gears and four gear driven tooths are provided with first output shaft Take turns, five gear driven gears are provided with second output shaft；

   One or three gear synchronizers, the two gears driven gear are provided between the one gear driven gear and the three gears driven gear Two or four gear synchronizers are provided between described four gear driven gears, the side of the five gears driven gear is provided with the synchronization of five gears Device.
6. 6. speed changer according to claim 5, it is characterised in that the reverse gear synchronizer shares with described five gear synchronizers Same shifting fork mechanism.
7. 7. speed changer according to claim 1, it is characterised in that the motor power axle first gear is configured to duplex-gear Wheel, a part for the motor power axle first gear engages with first reverse idler gear, the motor power axle the Another part of one gear engages with main reducing gear driven gear.
8. 8. speed changer according to claim 4, it is characterised in that be fixedly installed the first output on first output shaft Axle output gear, the second output shaft output gear, the first output shaft output gear are fixedly installed on second output shaft Wheel and the second output shaft output gear engage with main reducing gear driven gear.
9. 9. speed changer according to claim 5, it is characterised in that the motor power axle second gear is led with described four gears Moving gear is engaged or is driven by intermediate idler and described four gear driving gears.
10. 10. speed changer according to claim 9, it is characterised in that the intermediate idler is duplicate gear, the duplex-gear A part for wheel engages with described four gear driving gears, another part of the duplicate gear and the tooth of motor power axle second Wheel engagement.
11. A kind of 11. power drive system, it is characterised in that including：

    Speed changer, the speed changer are the speed changer according to any one of claim 1-10；And

    First dynamotor, first dynamotor are arranged to link with the motor power axle.
12. 12. power drive system according to claim 11, it is characterised in that the speed changer is according to claim 4 Described in speed changer；

    The power drive system also includes：

    Engine and double clutch, the double clutch have input, the first output end and the second output end, the engine It is connected with the input, first output end is connected with first input shaft, second output end and described second Input shaft is connected.
13. 13. power drive system according to claim 12, it is characterised in that the engine can pass through the input End with first output end and second output end while conjugation and a portion power is passed through wherein one Root output shaft exports to wheel using the power that is travelled as vehicle and exports another part power by the motor power axle To first dynamotor to drive first dynamotor to be generated electricity.
14. 14. power drive system according to claim 12, it is characterised in that vehicle has mechanical reverse mode, electronic Reverse mode and mixed dynamic reverse mode,

    When the vehicle is in the mechanical reverse mode, the engine is as power source by caused power output to institute The one of input shaft is stated, and the tooth of motor power axle first is synchronously outputted power to by the reverse gear synchronizer Wheel；

    When the vehicle is in the electronic reverse mode, first dynamotor is as power source and passes through the electricity Synchronization of the mechanomotive force axle synchronizer to the motor power axle first gear and output power to the motor power axle first Gear；

    When the vehicle is in the mixed dynamic reverse mode, the engine is as dynamic origin by caused power output It is one to the input shaft, and the motor power axle the is synchronously outputted power to by the reverse gear synchronizer One gear, first dynamotor is as another power source and by the motor power axle synchronizer to the motor The synchronization of power axle first gear and output power to the motor power axle first gear.
15. 15. power drive system according to claim 12, it is characterised in that described when vehicle is in parked state Engine is arranged to the one of caused power output to the input shaft, and passes through the motor power axle synchronizer Synchronization to the motor power axle second gear and the power output is described to drive to first dynamotor First dynamotor is generated electricity.
16. 16. power drive system according to claim 11, it is characterised in that the motor power axle synchronizer with institute One in motor power axle first gear and motor power axle second gear engagement is stated to switch to and another joint aging time Between, first dynamotor is arranged to in the motor power axle first gear and the motor power axle second gear Another the rotating speed for target to the motor power axle carry out speed governing.
17. 17. power drive system according to claim 11, it is characterised in that the input shaft includes：First input shaft With the second input shaft, second input shaft is coaxially set on first input shaft；The multiple output shaft includes：The One output shaft and the second output shaft, first output shaft and second output shaft be arranged in parallel with input shaft；

    The power drive system also includes：Second dynamotor, wherein

    The main reducing gear driven gear transmission of second dynamotor and vehicle；Or

    Second dynamotor is connected with the first output shaft；Or

    Second dynamotor is connected with first input shaft；Or

    The main reducing gear driven gear of the vehicle is arranged on differential mechanism, and second dynamotor is two and set respectively Put in the both sides of the differential mechanism.
18. 18. according to the power drive system any one of claim 12-15, it is characterised in that

    The engine and/or first dynamotor are used to drive pair of wheels；And

    The power drive system also includes：

    3rd dynamotor and the 4th dynamotor, the 3rd dynamotor are arranged to and one in second pair of wheel Individual linkage, the 4th dynamotor are arranged to and another linkage in second pair of wheel, the pair of wheels For a pair in front wheels and rear wheels, second pair of wheel is the another pair in the front-wheel and the trailing wheel；

    Anti-skidding synchronizer, the anti-skidding synchronizer is arranged to optionally synchronous second pair of wheel, so that described second To wheel synchronous rotary.
19. 19. power drive system according to claim 18, it is characterised in that

    First gear, the 3rd dynamotor are provided with corresponding to 3rd dynamotor on first power output shaft The corresponding wheel is connected with the first semiaxis, and second gear is provided with first semiaxis；The power drive system is also Including the 3rd gear and the 4th gear, the 3rd gear is engaged with the first gear and the 4th gear and described second Gear engages, and the 3rd gear is coaxially arranged with the 4th gear and can synchronous rotary；And

    The 5th gear, the 4th dynamotor are provided with corresponding to 4th dynamotor on second power output shaft The corresponding wheel is connected with the second semiaxis, and the 6th gear is provided with second semiaxis；The power drive system is also Including the 7th gear and eighth gear, the 7th gear is engaged with the 5th gear and the eighth gear and the described 6th Gear engages, and the 7th gear is coaxially arranged with the eighth gear and can synchronous rotary；Wherein,

    The anti-skidding synchronizer is arranged on first semiaxis and is arranged to be selectively engageable the 6th gear；Or The anti-skidding synchronizer is arranged on corresponding to the 3rd dynamotor on the first power output shaft and is arranged to optionally connect Close the 5th gear；Or

    3rd gear is fixed on first gear axle with the 4th gear, and the 7th gear is consolidated with the eighth gear It is scheduled on second gear axle；And the anti-skidding synchronizer is arranged on the first gear axle and is arranged to optionally connect Close the 7th gear.
20. 20. power drive system according to claim 18, it is characterised in that corresponding to the 3rd dynamotor One power output shaft and the second power output shaft corresponding to coaxial connected and described 4th dynamotor of the corresponding wheel Coaxially it is connected with the corresponding wheel, the anti-skidding synchronizer is arranged on first power output shaft and is arranged to optional Engage to selecting property second power output shaft.
21. 21. a kind of vehicle, it is characterised in that including the power drive system according to any one of claim 11-20.