CN105459790B

CN105459790B - Power drive system for vehicle and the vehicle with the power drive system

Info

Publication number: CN105459790B
Application number: CN201410458281.5A
Authority: CN
Inventors: 刘静; 华煜; 穆金辉
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2014-09-10
Filing date: 2014-09-10
Publication date: 2018-05-08
Anticipated expiration: 2034-09-10
Also published as: CN105459790A

Abstract

The invention discloses a kind of power drive system and there is its vehicle.The power drive system includes：The first and second input shafts being coaxially disposed, driving gear and also fixed motor gear on one of them are respectively and fixedly provided with the first and second input shafts；First and second output shafts, driven gear is set with the first and second output shafts, and each driven gear can be rotated by the synchronous effect of synchronizer with corresponding output shaft；First dynamotor, the motor power axis overhead set of first dynamotor is provided with motor power axis first gear and motor power axis second gear, motor power axis second gear is driven with motor gear, each in motor power axis first gear and motor power axis second gear can be by the synchronous effect of synchronizer and with motor power axis synchronous rotary；Engine, engine are selectively engageable the first and/or second input shaft.The power drive system of the present invention, compact-sized, axially and radially size is small, can realize the mixed condition of starting building of parking charge function and full gear, good dynamic property.

Description

Power drive system for vehicle and the vehicle with the power drive system

Technical field

It is more particularly, to a kind of power drive system for vehicle and dynamic with this present invention relates to automobile technical field The vehicle of power transmission 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 power drive system general structure in hybrid vehicle is answered It is miscellaneous, it is bulky, and can not often realize parking charge function, and mixed dynamic model formula is single, is only capable of realizing the mixed of indivedual gears Dynamic model formula, can not realize the mixed dynamic model formula of full gear.

The content of the invention

It is contemplated that one of above-mentioned technical problem of the prior art is solved at least to a certain extent.For this reason, this hair A bright purpose is to propose a kind of power drive system for vehicle, and the power transmission system structure is simple, compact, energy Enough realize parking charge function.

It is another object of the present invention to propose a kind of vehicle with above-mentioned power drive system.

Power drive system for vehicle according to embodiments of the present invention, including：First input shaft and the second input shaft, Second input shaft is coaxially set on first input shaft, in first input shaft and second input shaft Driving gear is fixedly installed on each, and electricity is further fixedly arranged on first input shaft or second input shaft Machine gear；First output shaft and the second output shaft, it is empty in each in first output shaft and second output shaft Set is provided with driven gear, and the driving gear and the driven gear respectively correspondingly engage, and are set on first output shaft It is equipped with the first output section, is provided with the second output section on second output shaft；Motor power axis, the motor power axis overhead Set is provided with motor power axis first gear and motor power axis second gear, the motor power axis second gear and the electricity Machine direct geared transmission or indirect drive, it is every in the motor power axis first gear and the motor power axis second gear One can by the synchronous effect of synchronizer and with the motor power axis synchronous rotary；First dynamotor, described first Dynamotor is connected with the motor power axis；And engine, passed between the engine and input shaft into action edge The engine is selectively engageable at least one in first input shaft and second input shaft when passing.

Power drive system according to embodiments of the present invention, compact-sized, axially and radially size is small, can realize parking The mixed condition of starting building of charge function and full gear, good dynamic property.

Another aspect of the present invention proposes a kind of vehicle, which includes the power transmission as described above for being used for vehicle System.

Brief description of the drawings

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 in accordance with another embodiment of the present invention；

Fig. 3 is the schematic diagram of the power drive system of another embodiment according to the present invention；

Fig. 4 is the schematic diagram of the power drive system of further embodiment according to the present invention；

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

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

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

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

Fig. 9 is the schematic diagram of the power drive system of further embodiment according to the present invention；

Figure 10 is the schematic diagram of the power drive system of further embodiment according to the present invention；

Figure 11 is the schematic diagram of the power drive system of further embodiment according to the present invention；

Figure 12 is the schematic diagram of the power drive system of further embodiment according to the present invention；

Figure 13 is the schematic diagram of the power drive system of further embodiment according to the present invention；

Figure 14 is the schematic diagram of the power drive system of further embodiment according to the present invention；

Figure 15 is the schematic diagram of the power drive system of further embodiment according to the present invention；

Figure 16 is the schematic diagram of the power drive system of further embodiment according to the present invention.

Embodiment

The embodiment of the present invention is 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 has the function of same or like element.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 present 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 description 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 present invention, " multiple " are meant that at least two, such as two It is a, 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 be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

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.

The power drive system 100 for vehicle according to embodiments of the present invention is described in detail referring to Fig. 1-Figure 16.

With reference to shown in Fig. 1-Fig. 4, power drive system 100 according to embodiments of the present invention can include two input shafts, Two output shafts and at least two power sources.

As Figure 1-Figure 4, two input shafts can be the first input shaft 11 and the second input shaft 12 being coaxially arranged, two Output shaft can be the first output shaft 31 and the second output shaft 32 being arranged in parallel, and at least two power sources can be the first dynamoelectric and power generation Machine 51 and engine 4 can also be engine 4, the first dynamotor 51 and the second dynamotor 52.

As Figure 1-Figure 4, the second input shaft 12 can be hollow shaft structure, and the first input shaft 11 can be solid shafting knot Structure, the second input shaft 12 can be arranged on empty set on the first input shaft 11, and driving gear is fixedly installed on the first input shaft 11, Similarly, also it is fixedly installed driving gear on the second input shaft 12.As optional embodiment, the master on each input shaft Moving gear is multiple.

Wherein, motor gear 7a, such as showing in Fig. 1-Fig. 4 are additionally provided with the first input shaft 11 or the second input shaft 12 In example, motor gear 7a is fixed on the first input shaft 11.

First output shaft, 31 overhead set is provided with driven gear, similarly, on the second output shaft 32 also empty set be provided with from Moving gear, the driven gear on each output shaft can be rotated relative to the output shaft with differential.As an alternative embodiment, Driven gear on each output shaft is also to be multiple.

Multiple driving gears are respectively correspondingly engaged with multiple driven gears, so as to form multipair gear pair, this will be under Face is described in detail in conjunction with specific embodiments.

Wherein, each driven gear can be rotated by the synchronous effect of synchronizer with corresponding output shaft synchronous, i.e., same Step device can be used for by corresponding at most two (one or two) driven gears optionally with corresponding output shaft engagement (when It can also so disconnect).Synchronizer can use traditional structure, such as synchronizer is arranged on corresponding output shaft, Mei Getong The both sides of step device can set two driven gears, and certainly, each synchronizer only can also set a driven gear in side.

First output section 311 is arranged on the first output shaft 31 as the power output end of the first output shaft 31, optional Ground, the first output section 311 can be fixedly disposed on the first output shaft 31.Similarly, the second output section 321 is used as second The power output end of output shaft 32 and be arranged on the second output shaft 32, alternatively, the second output section 321 can be fixed setting On the second output shaft 32.

In certain embodiments, the first output section 311 is the first output gear being fixed on the first output shaft 31, Second output section 321 is the second output gear being fixed on the second output shaft 32, and the first output gear 311 and second is defeated Going out gear 321 can engage with the main reducing gear driven gear 63 on differential for vehicles 61 respectively.

As depicted in figs. 1 and 2, the first dynamotor 51 is connected with motor power axis 33, and wherein motor power axis 33 can To be the first dynamotor 51 motor shaft of itself.Certainly, the motor shaft of 33 and first dynamotor 51 of motor power axis Can also be two single components.33 overhead of motor power axis set is provided with motor power axis first gear 331 and motor Power axis second gear 332, in other words, motor power axis first gear 331 relative to motor power axis 33 can differential rotate, motor Power axis second gear 332 can differential rotation relative to motor power axis 33.Motor power axis second gear 332 is straight with motor gear 7a Connect transmission or with motor gear 7a indirect drives.

Such as in the example of Fig. 3-Fig. 4, motor power axis second gear 332 can be with the motor tooth on the first input shaft 11 Take turns 7a directly engaged transmissions (dotted line represents in figure).But the present invention is not limited thereto, in further embodiments, such as Fig. 1-Fig. 2 It is shown, motor power axis second gear 332 can also by an intermediate idler 7b and with motor gear 7a indirect drives.

In this example, motor power axis first gear 331 as motor power axis 33 power output terminal and with master The engaged transmission of retarder driven gearwheel 63.Need explanation a bit, in the example of fig. 1 and 2, the first output gear 311, second Output gear 321 and motor power axis first gear 331 can be engaged with main reducing gear driven gear 63, but due to Fig. 1 and Fig. 2 is transmission schematic diagram, therefore and is not apparent from illustrating the first output gear 311, the second output gear 321 and motor power axis first Gear 331 is engaged with main reducing gear driven gear 63.

As depicted in figs. 1 and 2, each in motor power axis first gear 331 and motor power axis second gear 332 Can by the synchronous effect of synchronizer and with 33 synchronous rotary of motor power axis.For example, corresponding motor power axis first gear 331 Motor power axis the can be located at the synchronizer (for example, motor power axis synchronizer 33c) of motor power axis second gear 332 Between one gear 331 and motor power axis second gear 332, the engageable motor power axis first gear 331 of the synchronizer and electricity One of mechanomotive force axis second gear 332, certain synchronizer can also be with motor power axis first gear 331 and motor power Axis second gear 332 is all off.

The output terminal of engine 4 such as bent axle is arranged to optional when being transmitted between engine 4 and input shaft into action edge Engage to selecting property at least one in the first input shaft 11 and the second input shaft 12.In other words, engine 4 can be with the first input shaft 11 engagements are to transmit power, and engine 4 can be disconnected with the second input shaft 12 at this time.Alternatively, engine 4 can be with the second input shaft 12 Engagement is to transmit power, and engine 4 can be disconnected with the first input shaft 11 at this time.Furthermore engine 4 can with the first input shaft 11 and Second input shaft 12 is all off, and certainly, engine 4 can also all be engaged with the first input shaft 11 and the second input shaft 12.

In one embodiment, can be connected between engine 4 and input shaft by double clutch 2, double clutch 2 has Input terminal 23, the first output terminal 21 and the second output terminal 22, the input terminal 23 of double clutch 2 can be the housings of double clutch 2, Its 21 and second output terminal 22 of the first output terminal can be two clutch plates.Usually, housing and two clutch plates can be all Disconnect, i.e., input terminal 23 is disconnected with the first output terminal 21 and the second output terminal 22, is needing to engage one of clutch plate When, housing and corresponding clutch plate can be controlled engage so as to synchronous rotary, i.e. 23 and first output terminal 21 of input terminal and the One of two output terminals 22 engage.In addition, housing can also be simultaneously engaged with two clutch plates, i.e., input terminal 23 simultaneously engages with first 21 and second output terminal 22 of output terminal.

It should be appreciated that the specific engagement state of double clutch 2 is controlled the influence of strategy, for those skilled in the art Member for, can according to actually required transmission mode adaptive settings control strategy.

As shown in Figure 1, engine 4 is connected with the input terminal 23 of double clutch 2, the first output terminal 21 of double clutch 2 with First input shaft 11 is connected, so that 11 synchronous rotary of the first output terminal 21 and the first input shaft, the second output terminal of double clutch 2 22 are connected with the second input shaft 12, so that the second output terminal 22 of double clutch 2 is connected with the second input shaft 12.

In some embodiments of the invention, power drive system 100 has six forward ranges.With reference to Fig. 1-Fig. 4 institutes Show, be fixedly installed multiple odd numbers gear driving gears and a motor gear 7a on the first input shaft 11, on the second input shaft 12 Multiple even number gear driving gears are fixedly installed, thus, the first input shaft 11 is mainly responsible for transmission odd number gear, the second input shaft 12 are responsible for transmission even number gear.Accordingly, it is both provided with even number in each in the first output shaft 31 and the second output shaft 32 Driven gear and odd number gear driven gear are kept off, and is engaged respectively with the driving gear on corresponding input shaft.

Specifically, with reference to shown in Fig. 1-Fig. 4, a gear driving gear 1a, three gears are fixedly installed on the first input shaft 11 Driving gear 3a, five keep off driving gear 5a, and the gears of two gear driving gear 2a and four or six are fixedly installed on the second input shaft 12 actively Gear 46a.

Accordingly, it is driven to be provided with a gear driven gear 1b, two gear driven gear 2b, three gears for 31 overhead of the first output shaft set The gear driven gear 4b of gear 3b and four, 32 overhead of the second output shaft set are provided with the gear driven gears of five gear driven gear 5b and six 6b。

One gear driving gear 1a is engaged with a gear driven gear 1b so as to form first gear pair.Two gear driving gear 2a and Two gear driven gear 2b engagements are so as to form second gear pair.Three gear driving gear 3a and three gear driven gear 3b engagements are so as to structure Into three gear gear pairs.Four or six gear driving gear 46a and four gear driven gear 4b engagements are so as to form four gear gear pairs.Five gears are actively Gear 5a is engaged with five gear driven gear 5b so as to form five gear gear pairs.Four or six gear driving gear 46a and six gear driven gears 6b engagements are so as to form six gear gear pairs.

Wherein, since four gear gear pairs and six gear gear pairs share a driving gear i.e. 46 and keep off driving gear 46a, from And reduce the quantity of driving gear, reduce the longitudinal length of power drive system 100, reduce cost.

With reference to Fig. 1, one or three gear synchronizer 13c are provided between a gear driven gear 1b and three gear driven gear 3b, one or three Gear synchronizer 13c is arranged on the first output shaft 31, when the clutch collar of one or three gear synchronizer 13c is moved to the left, can engage three Driven gear 3b is kept off, when the clutch collar of one or three gear synchronizer 13c moves right, a gear driven gear 1b can be engaged.

Two or four gear synchronizer 24c, two or four gear synchronizers are provided between two gear driven gear 2b and four gear driven gear 4b 24c is arranged on the first output shaft 31, when the clutch collar of two or four gear synchronizer 24c is moved to the left, can engage two gear driven tooths 2b is taken turns, when the clutch collar of two or four gear synchronizer 24c moves right, four gear driven gear 4b can be engaged.

Five or six gear synchronizer 56c, five or six gear synchronizers are provided between five gear driven gear 5b and six gear driven gear 6b 56c is arranged on the second output shaft 32, when the clutch collar of five or six gear synchronizer 56c moves right, can engage five gear driven tooths 5b is taken turns, when the clutch collar of five or six gear synchronizer 56c is moved to the left, six gear driven gear 6b can be engaged.

The synchronization of motor power axis is provided between motor power axis first gear 331 and motor power axis second gear 332 Device 33c, motor power axis synchronizer 33c are arranged on motor power axis 33, and the clutch collar of motor power axis synchronizer 33c is to the right When mobile, motor power axis second gear 332 can be engaged, can when the clutch collar of motor power axis synchronizer 33c is moved to the left To engage motor power axis first gear 331.

Thus, above-mentioned each synchronizer corresponds to two driven gears, therefore synchronizer is without diastema so that powertrain The structure of system is compacter, easy to arrange.It should be appreciated that the description above for synchronizer is only illustrative, not The moving direction of synchronizer in actual product is represented, can not be not understood as limiting a kind of of the present invention.

In one embodiment, as shown in Figure 1, a gear driving gear 1a, five gear driving gear 5a, three gear driving gears 3a, motor gear 7a, four or six gear driving gear 46a and two gear driving gear 2a and the distance of engine 4 are sequentially reduced.Change speech It, with reference to shown in Fig. 1, is followed successively by a gear driving gear 1a, five gear driving gear 5a, three gear driving gear 3a, electricity from right to left Machine gear 7a, four or six gear driving gear 46a and two gear driving gear 2a, are arranged so as to cause power drive system 100 more Step up to gather.

According to one embodiment of present invention, as Figure 3-Figure 4, motor power axis second gear 332 and motor gear The direct engaged transmissions of 7a.Thus, driving-chain is short, and transmission energy loss is small, transmission efficiency.

And in further embodiments, as Figure 1-Figure 2, motor power axis second gear 332 is lazy by a centre Take turns 7b and with motor gear 7a indirect drives, wherein intermediate idler 7b respectively with motor power axis second gear 332 and motor tooth Take turns 7a engagements.

Due to two output shafts of input shaft peripheral disposition, motor power axis with respect to input shaft position farther out, Therefore in order to reduce arrangement difficulty, by setting intermediate idler 7b to facilitate motor gear 7a and the second tooth of motor power axis Power transmission is carried out between wheel 332.

Further, in some embodiments, as depicted in figs. 1 and 2, for saving radial space and in view of power The structural compactness of transmission system 100, can set axle sleeve 8 on six gear driven gear 6b, axle sleeve 8 is to be set in the second output shaft On 32, intermediate idler 7b empty sets are on the axle sleeve 8 in the embodiment.

Thus, it is not separately provided idler shaft and directly intermediate idler 7b is arranged on the second output shaft 32, not only reduces The axial dimension of power drive system 100, while radial space is also saved, provided just to arrangement of the complete machine in vehicle Profit.

In one embodiment, as shown in Figure 1, differential mechanism 61 distributes power to the front-wheel 71 of vehicle, in other words, come from The power of 4 and/or first dynamotor 51 of engine is used to drive front-wheel 71.For example, differential mechanism 61 can pass through both sides Two semiaxis and output power to the front-wheel 71 of corresponding side.

Power drive system 100 according to some embodiments of the present invention, can also add the second dynamotor 52 with Increase the dynamic property of power drive system 100, enrich transmission mode.For example, in certain embodiments, the second dynamotor 52 It can be driven with main reducing gear driven gear 63, such as gear can be set on the motor shaft of the second dynamotor 52, the gear With the directly engaged transmission of main reducing gear driven gear 63.And for example, in further embodiments, the second dynamotor 52 can also It is arranged to be connected with the first input shaft 11 or is connected with the first output shaft 21 or with the second output shaft 22.For another example, in still other reality Apply in example, the second dynamotor 52 is two and is separately positioned on the both sides of differential mechanism 61, such as this two the second electronic hairs Motor 52 can become one with differential mechanism 61.Alternatively, foregoing 4 and first dynamotor 51 of engine is used for before driving Wheel, the second dynamotor 52 can also be wheel motor and be used for trailing wheel, or the second dynamotor 52 can pass through one A reducing gear 53 drives two trailing wheels, or the second dynamotor 52 as two and is driven respectively by a reducing gear 53 Move a trailing wheel.

It is understood that for the ordinary skill in the art, reading the base of specification the above On plinth, the specific location of the second dynamotor 52 in the various embodiments described above can be combined, this equally falls into this hair Within bright protection domain.

In addition, it is necessary to explanation, the present invention it is related " the first dynamotor 51 ", " the second dynamotor 52 " In description, dynamotor refers to thering is motor and the motor of generator function.

Several exemplary operation moulds of power drive system 100 according to embodiments of the present invention are described in detail with reference to Fig. 1 Formula.

The first typical condition, parking charging.

The input terminal 23 of double clutch 2 is engaged with the first output terminal 21, motor power axis synchronizer 33c engagement motor powers Axis second gear 332, thus engine 4 export power will by the first input shaft 11, motor gear 7a, intermediate idler 7b and Motor power axis second gear 332 is exported to the first dynamotor 51, so as to drive the first dynamotor 51 to generate electricity. Remaining synchronizer is all off under the operating mode.

It is wherein it is possible to the speed of motor gear 7a and motor power axis second gear 332 is more maximum (more than six gears than being designed as The fast ratio of transmission), the charge efficiency of engine 4 can be so improved, realizes fast charge function.

In short, when vehicle is in parked state, engine 4 is arranged to the power output of generation to motor gear 7a, and outputed power by synchronizations of the motor power axis synchronizer 33c to motor power axis second gear 332 to the first electricity Dynamic generator 51 is generated electricity with the first dynamotor 51 of driving.

Second of typical condition, mixes dynamic model formula.

Under the pattern, the input terminal 23 of double clutch 2 is engaged with one of the first output terminal 21 and the second output terminal 22, motor Line shaft synchronizer 33c engagement motor power axis first gear 31,1 keeps off one gear driven gear 1b or three of synchronizer 13c engagements Keep off five gear driven gear 5b or six gear driven gear 6b of the gear synchronizer 56c of driven gear 3b or five or six engagements or two or four gears Two gear driven gear 2b of synchronizer 24c engagements or four gear driven gear 4b, i.e., by controlling the engagement state of synchronizer, Ke Yishi The mixed dynamic model formula of existing different gears.

By taking a gear is mixed and moved as an example, the first dynamotor 51 is outputed power by motor power axis first gear 331, the One output gear 331 is by the power output of engine 4, by adjusting the output speed of the first dynamotor 51 so that differential The main reducing gear driven gear 63 engaged on device 61 with two gears being capable of balanced synchronization the first output gear 311 of reception and electricity The rotating speed of mechanomotive force axis first gear 331 so that power output is more steady.

In short, by controlling the engagement state of double clutch 2 and the engagement state of each synchronizer, it is possible to achieve complete The mixed condition of starting building of gear, so as to preferably meet driving demand.

The third typical condition：The charge mode in driving of engine 4.

When in this mode, for using the transmission of odd number gear, the input terminal 23 of double clutch 2 engages the first output terminal 21, motor power axis synchronizer 33c engagement motor power axis second gear 332, a part of power that engine 4 exports can lead to Cross motor gear 7c, intermediate idler 7b is exported to the first dynamotor 51, so as to drive the first dynamotor 51 to be sent out Electricity.Another part power that engine 4 exports at the same time can be by first gear pair, three gear gear pairs or five gear gear pairs and defeated Go out.

During for using the transmission of even number gear, there are two kinds of implementation patterns.

The first engages the second output terminal 22 for the input terminal 23 of double clutch 2 and is disconnected with the first output terminal 21, with two Exemplified by gear transmission, two or four gear synchronizer 24c engagements, two gear driven gear 2b, motor power axis synchronizer 33c engagement motor power Axis first gear 331, engine 4 exports power drive wheel by the first output shaft 31, and wheel passes through motor power axis 33 It is counter to drag the first dynamotor 51 to generate electricity.

Second of input terminal 23 for double clutch 2 simultaneously engages with the first output terminal 21 and the second output terminal 22, with two gears Exemplified by transmission, two or four gear synchronizer 24c engagements, two gear driven gear 2b, motor power axis synchronizer 33c engagement motor power axis Second gear 332, engine 4 exports power drive wheel by the first output shaft 31, and engine 4 passes through motor gear at the same time 7c, intermediate idler 7b are exported to the first dynamotor 51, so as to drive the first dynamotor 51 to generate electricity.

That is, engine 4 can be by input terminal 233 with being engaged while the first output terminal 21 and the second output terminal 22 at this time Act on and export a portion power to wheel to be used as car by a wherein output shaft (for example, second output shaft 32) Traveling power and another part power is exported to the first dynamotor 51 to drive first by motor power axis 33 Dynamotor 51 generates electricity.

Two kinds of charging modes, second of preferred embodiment, because the speed of power drive system 100 is more closed than transmitting at this time Reason and more easy to control, optimal can be gone to adjust by the output torque of engine 4.It should be appreciated that in this mode, for four gears Transmission and six gear transmissions are similar with above-mentioned two gear transmissions, and which is not described herein again.

In the power drive system 100 of the present invention, a gear between six gears in upshift, can be real by putting into gear in advance The uninterrupted output of existing vehicle power.

Further, since power drive system 100 according to embodiments of the present invention is also provided with being used to drive trailing wheel 72 The second dynamotor 52, therefore when the output of 4 and/or first dynamotor 51 of engine is short of power, Ke Yitong Cross the second dynamotor 52 to compensate, or when vehicle needs anxious accelerate, the second dynamotor 52 can also be passed through Carry out power compensation.

Further, since the embodiment shown in Fig. 3 and Fig. 4 is similar to the embodiment shown in Fig. 1 and Fig. 2, equally with above-mentioned Transmission mode, repeat no more for purposes of brevity here.

With reference to shown in Fig. 5-Figure 12, in four embodiments shown in Fig. 5-Figure 12, the main difference with above-described embodiment Part is that the setting position of the second dynamotor 52 is different.

Specifically, with reference to shown in Fig. 5 and Fig. 6, Fig. 9 and Figure 10, the second dynamotor 52 can be same with the first output shaft 31 Axis is connected.And with reference to shown in Fig. 7 and Fig. 8, Figure 11 and Figure 12, the second dynamotor 52 can be with 11 coaxial phase of the first input shaft Even.

With reference to shown in Fig. 5-Figure 11, it is common that the second dynamotor 52 can match 4 and first dynamotor 51 of engine As power source to drive vehicle.

Additionally, the second dynamotor 52 can also be used as speed regulating motor, referring for example to Fig. 5-Fig. 6, Fig. 9-Figure 10 institutes Show, the second dynamotor 52 can adjust the rotating speed of the first output shaft 31 and the first output gear 311, the output of control first Transmission speed of the gear 311 to main reducing gear driven gear 63 so that the power output of power drive system 100 more smoothes out.

Electronic differential lock construction according to embodiments of the present invention is described in detail below with reference to Figure 13-Figure 16, which can Realize a pair of driving wheels that locking skids when there is wheel-slip phenomenon, so as to improve slipping phenomenon, improve trafficability Energy.

As shown in Figure 13-Figure 16, which includes the 3rd dynamotor 201, the 4th dynamotor 301 and anti-skidding synchronizer 503.Wherein, 4 and/or first dynamotor 51 of engine be used for drive pair of wheels 71, the 3rd 201 and the 4th dynamotor 301 of dynamotor is arranged for second pair of wheel 72 of driving, wherein pair of wheels 71 is A pair in front wheels and rear wheels, second pair of wheel 72 are the another pair in front wheels and rear wheels.In the example of Figure 13-Figure 16, 4 and first dynamotor 51 of engine drives front-wheel, and the 3rd dynamotor 201 and the 4th dynamotor 301 are used respectively In two trailing wheels of driving.

With reference to shown in Figure 13-Figure 15, the 3rd dynamotor 201 is arranged to link with one in second pair of wheel 72, In other words, the 3rd dynamotor 201 can output power to a wheel to drive a vehicle wheel rotation, or the 3rd Dynamotor 201 can also absorb energy from a wheel, so as to generate electricity.

Similarly, the 4th dynamotor 301 is arranged to and another linkage in second pair of wheel 72, 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 generate electricity.In the example of Fig. 2-Fig. 6, 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 72, so that second pair of wheel 72 is same Step rotation, in other words, after the synchronous second pair of wheel 72 of anti-skidding synchronizer 503 (i.e. anti-skidding synchronizer 503 is in engagement state), Formed between second pair of wheel 72 and connect firmly form, so that synchronous rotary, will not differential rotation.

And when anti-skidding synchronizer 503 is off, the 3rd dynamotor 201 and the 4th dynamotor 301 Corresponding wheel can be driven respectively with different rotational speeds, the differential rotating function of two wheels is realized, certainly, anti-skidding When synchronizer 503 is off, the 3rd dynamotor 201 and the 4th dynamotor 301 can also drive this second To wheel 72 with identical rotational speed.

Thus, by setting the 3rd dynamotor 201 and the 4th dynamotor 301 individually to drive second pair of car Wheel 72, it is anti-skidding same so as to realize that the differential of second pair of wheel 72 rotates, and when occurring in which a wheel-slip phenomenon Walk device 503 can synchronous second pair of wheel 72 so that second pair of 72 synchronous rotary of wheel, realizes that two motors (can certainly be One) output power coupling after jointly driving second pair of 72 operation of wheel, 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, rear 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 kind of drive combination Figure 13-figure of the 3rd dynamotor 201, the 4th dynamotor 301 and wheel 15 example is described in detail.

In certain embodiments, as shown in Figure 13-Figure 15, pass through between the 3rd dynamotor 201 and corresponding wheel Gear structure indirect drive, similarly, can also pass through the gear structure between the 4th dynamotor 301 and corresponding wheel Indirect drive.

Transmission is carried out by gear structure to be easily achieved and simple in structure, 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, improves the stability and reliability of power drive system 100.

Further, as optional embodiment, as shown in Figure 13-Figure 15, the 3rd dynamotor 201 and corresponding car Used gear structure can include first gear 401, second gear 402, the 3rd gear 403 and the 4th gear between wheel 404 4 gears.

First gear 401 can be arranged on 201 corresponding first power output shaft 202 of the 3rd dynamotor, and first Gear 401 can be with 202 synchronous rotary of the first power output shaft.Wherein, the first power output shaft 202 can be used for output to come from the 3rd The power that dynamotor 201 produces, 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 components, at this time 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 204 synchronous rotary of the first semiaxis 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 13-Figure 15, the gear knot that is used between the 4th dynamotor 301 and corresponding wheel Structure can include the 5th gear 405, the 6th gear 406, the 7th gear 407 and eighth gear 408 totally four gears.5th gear 405 can be arranged on 301 corresponding second power output shaft 302 of the 4th dynamotor and can be with the second power output shaft 302 synchronous rotaries.Wherein, the second power output shaft 302 can be used for the power that output is produced from 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 components, at this time 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 304 synchronous rotary of the second semiaxis 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 408 synchronization arrangement of eighth gear and can synchronous rotary.

Alternatively, 401 and the 5th gear 405 of first gear, 402 and the 6th gear 406 of second gear, 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 axis 501, 7th gear 407 can be fixed on second gear axis 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 13, anti-skidding synchronizer 503 can be arranged on the first semiaxis 204 and be arranged to The 6th gear 406 is selectively engageable, for example, the side of the 6th gear 406 towards anti-skidding synchronizer 503 can set engagement Gear ring, the clutch collar of anti-skidding synchronizer 503 are adapted to the engagement gear ring.Thus, after anti-skidding synchronizer 503 engages, the second couple Wheel 72 is by synchronous rotary.

In other examples, as shown in figure 14, anti-skidding synchronizer 503 is arranged on the first power output shaft 202 and sets It is set to and is selectively engageable the 5th gear 405, for example, the side of the 5th gear 405 towards anti-skidding synchronizer 503 can be set Gear ring is engaged, the clutch collar of anti-skidding synchronizer 503 is adapted to the engagement gear ring.Thus, after anti-skidding synchronizer 503 engages, this Two pairs of wheels 72 are by synchronous rotary.

In other example, as shown in figure 15, anti-skidding synchronizer 503 is arranged on first gear axis 501 and is arranged to The 7th gear 407 is selectively engageable, for example, the side of the 7th gear 407 towards anti-skidding synchronizer 503 can set engagement Gear ring, the clutch collar of anti-skidding synchronizer 503 are adapted to the engagement gear ring.Thus, after anti-skidding synchronizer 503 engages, the second couple Wheel 72 is by synchronous rotary.

Alternatively, in the example of Figure 16, 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 16, anti-skidding synchronizer 503 can be arranged on the 3rd dynamotor 201 corresponding first On power output shaft 202 and it is arranged to be selectively engageable 301 corresponding second power output shaft of the 4th dynamotor 302.Thus, after anti-skidding synchronizer 503 engages, second pair of wheel 72 is by synchronous rotary.

Generally speaking, power drive system 100 according to embodiments of the present invention, has the following advantages that：

1) realize the mixed dynamic model formula of full gear, and the first dynamotor 51 by motor power axis 33 directly by power To differential mechanism 63, the power utilization rate of the first dynamotor 51 is high, avoids the energy caused by unnecessary intermediate transfer for output Amount loss；

2) the first dynamotor 51 can carry out rotational speed regulation according to operating mode, on the one hand can control output shaft and electricity The uniformity of 33 power output of mechanomotive force axis, on the other hand can control on same axis the consistent of two shift gear synchronism outputs Property；

3) engine 4 can be achieved and power drive wheel is exported by output shaft, while realize that wheel passes through motor power axis 33 counter drag the first dynamotor 51 to generate electricity；

4) double clutch 2 can be achieved to simultaneously engage with, an output terminal is used for power output, and an output terminal is used to drive electricity Machine generates electricity, the two is non-interference；

5) can be achieved fuel oil be operated alone, pure electric vehicle, the multiple functions such as mixed dynamic, and above-mentioned function is in vehicle travel process Can any switching laws, can farthest take into account the driving handling and fuel economy of vehicle；

6) appropriate fast ratio can be selected to generate electricity, generating efficiency is maximized, send out at the same time according to different drive patterns 4 and first dynamotor 51 of motivation can operate under most economical operating mode, and then extend engine and first electronic The service life of generator 51.

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 the 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 of the present invention or example.In the present specification, schematic expression of the above terms is not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in 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 the embodiment of the present invention has 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, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims

A kind of 1. power drive system for vehicle, it is characterised in that including：

First input shaft and the second input shaft, second input shaft are coaxially set on first input shaft, and described Driving gear, and first input shaft or institute are fixedly installed in each in one input shaft and second input shaft State and be further fixedly arranged on motor gear on the second input shaft；

First output shaft and the second output shaft, equal empty set is set in each in first output shaft and second output shaft Driven gear is equipped with, the driving gear and the driven gear respectively correspondingly engage, and are provided with first output shaft The second output section is provided with first output section, second output shaft；

Motor power axis, the motor power axis overhead set are provided with the second tooth of motor power axis first gear and motor power axis Wheel, the motor power axis second gear are driven with the motor gear, the motor power axis first gear and the motor In line shaft second gear each can by the synchronous effect of synchronizer and with the motor power axis synchronous rotary, it is described Motor power axis first gear is the power output terminal of the motor power axis；

First dynamotor, first dynamotor are connected with the motor power axis；And

Engine, the engine is selectively engageable described when being transmitted between the engine and input shaft into action edge It is at least one in first input shaft and second input shaft.
2. it is used for the power drive system of vehicle according to claim 1, it is characterised in that further include：

Double clutch, the double clutch have input terminal, the first output terminal and the second output terminal, the engine with it is described double The input terminal of clutch is connected, and the first output terminal of the double clutch is connected with first input shaft, the double clutch The second output terminal be connected with second input shaft.
3. it is used for the power drive system of vehicle according to claim 2, it is characterised in that fixed on first input shaft It is provided with a gear driving gear, three gear driving gears and five gear driving gears；

Two gear driving gear and four or six gear driving gears are fixedly installed on second input shaft；

First output shaft overhead set be provided with a gear driven gear, two gear driven gears, three gear driven gears and four gears from Moving gear；

The second output shaft overhead set is provided with five gear driven gears and six gear driven gears；And

One or three gear synchronizers, the two gears driven gear are provided between the one gear driven gear and the three gears driven gear Described four gear driven gears between be provided with two or four gear synchronizers, it is described five gear driven gear with described six gear driven gears it Between be provided with five or six gear synchronizers.
4. it is used for the power drive system of vehicle according to claim 2, it is characterised in that first tooth of motor power axis Motor power axis synchronizer is provided between wheel and the motor power axis second gear.
5. it is used for the power drive system of vehicle according to claim 4, it is characterised in that the engine can pass through institute Input terminal is stated to pass through a portion power with conjugation while first output terminal and second output terminal A wherein output shaft exports to wheel using the power that is travelled as the vehicle and another part power is passed through the motor Line shaft is exported to first dynamotor to drive first dynamotor to generate electricity.
6. it is used for the power drive system of vehicle according to claim 4, it is characterised in that be in parking shape in the vehicle During state, the engine is arranged to the power output of generation to the motor gear, and synchronous by the motor power axis Synchronization of the device to the motor power axis second gear and by the power output to first dynamotor to drive The first dynamotor is stated to generate electricity.
7. it is used for the power drive system of vehicle according to claim 3, it is characterised in that second tooth of motor power axis Wheel is directly engaged with the motor gear or the motor power axis second gear passes through intermediate idler and the motor gear Indirect drive.
8. it is used for the power drive system of vehicle according to claim 7, it is characterised in that shape on the six gears driven gear Into there is axle sleeve, the intermediate idler empty set is on the axle sleeve.
9. it is used for the power drive system of vehicle according to claim 1, it is characterised in that first output section is fixation The first output gear being arranged on first output shaft, second output section are to be fixed at second output shaft On the second output gear, first output gear, second output gear and the motor power axis first gear point Do not engaged with the main reducing gear driven gear on differential for vehicles.
10. the power drive system according to claim 1 for vehicle, it is characterised in that further include：Second electronic hair Motor, wherein

The main reduction driven gear of second dynamotor and the vehicle is driven；Or

Second dynamotor is connected with the first output shaft；Or

Second dynamotor is connected with first input shaft；Or

The main reduction driven gear of the vehicle is arranged on differential mechanism, and second dynamotor is two and sets respectively In the both sides of the differential mechanism.
11. the power drive system for vehicle according to any one of claim 1-10, it is characterised in that

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

The power drive system further includes：

3rd dynamotor and the 4th dynamotor, the 3rd dynamotor are arranged to and one in second pair of wheel A 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 pair of wheel synchronous rotary.
12. the power drive system according to claim 11 for vehicle, it is characterised in that

First gear, the 3rd dynamotor are provided with corresponding first power output shaft of 3rd dynamotor 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 second power output shaft of 4th dynamotor 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 first power output shaft of the 3rd dynamotor and is arranged to alternative Ground engages the 5th gear；Or

3rd gear is fixed on first gear axis with the 4th gear, and the 7th gear is consolidated with the eighth gear It is scheduled on second gear axis；And the anti-skidding synchronizer is arranged on the first gear axis and is arranged to optionally connect Close the 7th gear.
13. the power drive system according to claim 11 for vehicle, it is characterised in that the 3rd dynamoelectric and power generation Corresponding first power output shaft of machine and coaxial connected and described 4th dynamotor corresponding second of the corresponding wheel Power output shaft is coaxially connected with the corresponding wheel, and the anti-skidding synchronizer is arranged on the 3rd dynamotor and corresponds to The first power output shaft on and be arranged to be selectively engageable corresponding second power output of the 4th dynamotor Axis.
A kind of 14. power drive system for vehicle, it is characterised in that including：

Engine；

Double clutch, the double clutch have input terminal, the first output terminal and the second output terminal, the engine with it is described double The input terminal of clutch is connected；

First input shaft and the second input shaft, second input shaft are coaxially set on first input shaft, and described Two input shafts are connected with second output terminal, and first input shaft is connected with first output terminal, first input A gear driving gear, three gear driving gears, five gear driving gears and motor gear, second input shaft are fixedly installed on axis On be fixedly installed two gear driving gear, four or six gear driving gears；

First output shaft and the second output shaft, the first output shaft overhead set are provided with a gear driven gear, two gear driven tooths Wheel, three gear driven gears and four gear driven gears, are further fixedly arranged on the first output gear on first output shaft, and described the One output gear is engaged with main reducing gear driven gear, and the second output shaft overhead set is provided with five gear driven gears and six gears Driven gear, is further fixedly arranged on the second output gear on second output shaft, second output gear subtracts with the master Fast device driven gear engagement；

Motor power axis, the motor power axis overhead set are provided with the second tooth of motor power axis first gear and motor power axis Wheel, the motor power axis second gear directly engage with the motor gear or by intermediate idler indirect drive, the electricity Mechanomotive force axis first gear is engaged with the main reducing gear driven gear；

One or three gear synchronizers, two or four gear synchronizers, five or six gear synchronizers and motor power axis synchronizer, the gear driven gear One or the three gear synchronizer, the two gear driven gear and described four gear driven tooths are provided between described three gear driven gears Two or the four gear synchronizer is provided between wheel, is provided between the five gear driven gear and the six gears driven gear described Five or six gear synchronizers, the motor is provided between the motor power axis first gear and the motor power axis second gear Line shaft synchronizer；And

First dynamotor, first dynamotor are connected with the motor power axis.
15. a kind of vehicle, it is characterised in that passed including the power for vehicle according to any one of claim 1-14 Dynamic system.