CN105459787B

CN105459787B - Power drive system for vehicle and the vehicle with the power drive system

Info

Publication number: CN105459787B
Application number: CN201410458177.6A
Authority: CN
Inventors: 刘静; 华煜
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2014-09-10
Filing date: 2014-09-10
Publication date: 2018-04-20
Anticipated expiration: 2034-09-10
Also published as: CN105459787A

Abstract

The invention discloses a kind of power drive system for vehicle and with the power drive system vehicle.The power drive system includes：First and second input shafts, are fixedly installed driving gear in each in the first and second input shafts；First and second output shafts, equal empty set is provided with driven gear in each in first and second output shafts, and first and second one of overhead sets in output shaft is provided with an intermediate idler and is further fixedly arranged on a travelling gear, intermediate idler is engaged with one of driving gear；First dynamotor is connected with motor power axis, motor power axis first gear and motor power axis second gear is set with motor power axis, motor power axis second gear is engaged with intermediate idler and motor power axis first gear is engaged with travelling gear；Engine, engine engageable first and/or the second input shaft.The power transmission system structure of the present invention is simple, compact, can realize parking charge function.

Description

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

Technical field

The present invention relates to automobile technical field, more particularly, to a kind of power drive system and has the power drive system Vehicle.

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, an object of the present invention is to provide a kind of power drive system for vehicle, the powertrain Unite simple in structure, compact, can realize parking charge function.

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

It is used for the power drive system of vehicle according to the present invention, including：First input shaft and the second input shaft, described Two input shafts are coaxially set on first input shaft, each in first input shaft and second input shaft On be fixedly installed driving gear；First output shaft and the second output shaft, first output shaft and second output shaft In each on equal empty set be provided with driven gear, the driving gear and the driven gear respectively correspondingly engage, institute State and the first output section is provided with the first output shaft, be provided with the second output section on second output shaft, wherein described first One of overhead set in output shaft and second output shaft is provided with an intermediate idler and is further fixedly arranged on one Travelling gear, the intermediate idler are engaged with driving gear one of them described；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 with it is described in Between idle pulley engagement and the motor power axis first gear engaged with the travelling gear, the motor power axis first gear with Each in the motor power axis second gear can be by the synchronous effect of synchronizer and synchronous with the motor power axis Rotation；First dynamotor, first dynamotor are connected with the motor power axis；And engine, described The engine is selectively engageable first input shaft and described when being transmitted between engine and input shaft into action edge It is at least one in second input shaft.

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 embodiments of the present invention；

Fig. 2 is the schematic diagram of power drive system according to embodiments of the present invention；

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

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

Fig. 5 is the schematic diagram of power drive system according to embodiments of 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. 1-5.

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

As shown in Figure 1, two input shafts can be the first input shaft 11 and the second input shaft 12 being coaxially arranged, two outputs Axis 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 dynamotor 51 With engine 4.

As shown in Figure 1, the second input shaft 12 can be hollow shaft structure, the first input shaft 11 can be solid axle construction, Second input shaft 12 can be arranged on empty set on the first input shaft 11, and driving gear, class are fixedly installed on the first input shaft 11 As, also it is fixedly installed driving gear on the second input shaft 12.As optional embodiment, the active on each input shaft Gear is multiple.

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 one or two driven gear.

Wherein, one of overhead set in the first output shaft 31 and the second output shaft 32 is provided with an intermediate idler 312 and it is further fixedly arranged on a travelling gear 313.Such as in the example of fig. 1,312 empty set of intermediate idler is arranged on first On output shaft 31, i.e., intermediate idler 312 relative to the first output shaft 31 can differential rotate, and travelling gear 313 is fixed on first Rotated on output shaft 31 and with the first output shaft 31.However, the present invention is not limited thereto, it is middle in other embodiments of the present invention Idle pulley 312 and travelling gear 313 can also be arranged on the second output shaft 32 at the same time.

Intermediate idler 312 and one of driving gear engaged transmission, such as in the example of fig. 1, intermediate idler 312 can To keep off driving gear 4a engaged transmissions with four, but not limited to this.

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 shown in Figure 1, the first dynamotor 51 is connected with motor power axis 33, motor power axis 33 can be the first electricity Dynamic generator 51 motor shaft of itself, certainly, the motor shaft of 33 and first dynamotor 51 of motor power axis can also be two A single component.

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.In Fig. 1 examples, motor power axis second gear 332 can be nibbled with intermediate idler 312 Transmission is closed, motor power axis first gear 331 can be engaged with travelling gear 313.

Need explanation a bit, in the example of fig. 1, the first output gear 311 and the second output gear 321 can with master Retarder driven gearwheel 63 engages, but since Fig. 1 is transmission schematic diagram, and it is not apparent from the first output gear 311 of signal and the Two output gears 321 are engaged with main reducing gear driven gear 63.

As shown in Figure 1, each in motor power axis first gear 331 and motor power axis second gear 332 can lead to Cross the synchronous effect of synchronizer and with 33 synchronous rotary of motor power axis.For example, corresponding motor power axis first gear 331 and electricity The synchronizer (for example, motor power axis synchronizer 33c) of mechanomotive force axis second gear 332 can be located at the first tooth of motor power axis Between wheel 331 and motor power axis second gear 332, the engageable motor power axis first gear 331 of the synchronizer and motor One of power 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 it is defeated that engine 4 can simultaneously engage with first Enter 11 and second input shaft 12 of axis.

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.Alternatively, input terminal 23 can also simultaneously engage with the first output terminal 21 and the second output terminal 22.

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 four forward ranges.With reference to shown in Fig. 1, the Multiple odd number gear driving gears are fixedly installed on one input shaft 11, multiple even number gear masters are fixedly installed on the second input shaft 12 Moving gear, thus, the first input shaft 11 are responsible for transmission odd number gear, and the second input shaft 12 is responsible for transmission even number gear.Accordingly, First output shaft, 31 overhead set sets multiple odd number gear driven gears, and the plurality of odd number is kept off on driven gear and the first input shaft 11 Multiple odd numbers gear driving gear respectively correspondingly engage.Similarly, 32 overhead of the second output shaft set is provided with multiple even number gears Driven gear, the plurality of even number gear driven gear are respectively correspondingly nibbled with multiple even numbers gear driving gear on the second input shaft 12 Close.

Specifically, with reference to shown in Fig. 1, a gear driving gear 1a, three gears are fixedly installed on the first input shaft 11 actively Gear 3a, the gear driving gears of two gear driving gear 2a and four 4a is fixedly installed on the second input shaft 12.

Accordingly, 31 overhead of the first output shaft set is provided with a gear driven gear 1b, three gear driven gear 3b, the second output 32 overhead of axis set is provided with the gear driven gears of two gear driven gear 2b and four 4b.

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 gear driving gear 4a and four gear driven gear 4b engagements are so as to form four gear gear pairs.

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 second output shaft 32, 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.

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.

It should be appreciated that the description above for synchronizer is only illustrative, do not represent synchronous in actual product The moving direction of device, 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, three gear driving gear 3a, four gear driving gears 4a, two gear driving gear 2a and the distance of engine 4 are sequentially reduced.In other words, with reference to shown in Fig. 1, gear is followed successively by from right to left Driving gear 1a, three gear driving gear 3a, four gear driving gear 4a, two gear driving gear 2a, are arranged so as to cause power Transmission system 100 is compacter.

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.

The typical condition of power drive system 100 according to embodiments of the present invention, the typical case are described in detail with reference to Fig. 1 Operating mode includes but not limited to parking charging operating mode, pure electric vehicle operating mode, each gear and mixes condition of starting building, engine 4 battery charger in driving Condition.

Parking charging operating mode：

When power drive system 100 is in parking charging operating mode, the input terminal 23 of double clutch 2 engages the second output terminal 22 and disconnected with the first output terminal 21, motor power axis synchronizer 33c engagement motor power axis second gear 332, at this time remaining Synchronizer disconnects, and the power that engine 4 exports is completely used for the first dynamotor 51 of driving and generates electricity.Since four gear transmissions is most High gear, for speed than maximum, torque transmits optimal, energy transfer efficiency highest, therefore can realize quick charge.Also, due to Input terminal 23 is disconnected with the first output terminal 21, therefore on the first output terminal 21, the first input shaft 11 and the first input shaft 11 Driving gear is not made, with rotation, to avoid energy loss to greatest extent, further improve the charge efficiency of engine 4.

In short, when vehicle is in parked state, engine 4 be arranged to by the power output of generation to and intermediate idler One of driving gear (for example, four gear driving gear 4a) of 312 engaged transmissions, and pass through motor power axis synchronizer 33c Synchronization to motor power axis second gear 332 and output power to the first dynamotor 51 to drive the first dynamoelectric and power generation Machine 51 generates electricity.

Pure electric vehicle operating mode：

When power drive system 100 is in pure electric vehicle operating mode, motor power axis synchronizer 33c engagements motor power axis the One gear 331, the power from the first dynamotor 51 can by motor power axis first gear 331, travelling gear 313, Exported after first output shaft 31, the first output gear 311 to differential mechanism 61, then power is distributed into wheel by differential mechanism 61.

Under the operating mode, 51 direct drive of wheel of the first dynamotor, power not by double clutch 2, input shaft with And shift gear is driven, driving-chain is most short, transmission efficiency, and transmission energy loss is small, avoids energy to greatest extent Loss.

Each gear mixes condition of starting building：

Power drive system 100 be in each gear mix start building condition when, by one gear transmission exemplified by, the input of double clutch 2 The engagement of end 23 and disconnects first output terminals 21 with the second output terminal 22, motor power axis synchronizer 33c engagement motor powers axis the One gear 331,1 gear synchronizer 13c engagements, one gear driven gear 1b, two or four gear synchronizer 24c disconnections.

The power that engine 4 exports is exported to the first output gear 311 by the first input shaft 11, the first output shaft 31, The power of first dynamotor 51 can be defeated by motor power axis first gear 331, travelling gear 311, the first output shaft 31 Go out to the first output gear 311, exported after two parts power coupling from the first output gear 311 to differential mechanism 61, so as to drive Motor-car.At this time, the first dynamotor 51 can be by itself rotational speed regulation, so as to match the power from engine 4 so that First output gear 311 can balanced synchronization receive the power of the two, so as to more smoothly drive vehicle.

Similarly, three gear transmissions are similar with a gear transmission, and which is not described herein again.

For two gear transmissions, the input terminal 23 of double clutch 2 engage the second output terminal 22 and with the first output terminal 21 Disconnect, it is driven that motor power axis synchronizer 33c engagement motor power axis first gear 331,24 keeps off two gear of synchronizer 24c engagements Gear 2b, one or three gear synchronizer 13c disconnections.

The power that engine 4 exports is exported to the second output gear 321 by the second input shaft 12, the second output shaft 32, The power of first dynamotor 51 can be defeated by motor power axis first gear 331, travelling gear 311, the first output shaft 31 Go out to the first output gear 311, differential mechanism 61 is by the power coupling from the first output gear 311 and the second output gear 321 After distribute to wheel, so as to drive vehicle.Under the operating mode, the first dynamotor 51 can by itself rotational speed regulation so that Match the power from engine 4 so that differential mechanism driven gear 63 can balanced synchronization receive the power of the two so that more Add and smoothly drive vehicle.

Similarly, four gear transmissions are similar with two gear transmissions, and which is not described herein again.

Engine 4 charges operating mode in driving：

During the operating mode that charges when power drive system 100 is in engine 4 in driving, to pass through the secondary driving car of first gear Exemplified by, the input terminal 23 of double clutch 2 engages the first output terminal 21 and is disconnected with the second output terminal 22, one or three gear synchronizers 13c engagements one gear driven gear 1b, two or four gear synchronizer 24c are disconnected, motor power axis synchronizer 33c engagement motor powers axis the One gear 331.

A part of power that engine 4 exports is by the first input shaft 11 and the first output shaft 31 from the first output gear 311 export and distribute to wheel from differential mechanism 61 to differential mechanism 61, power.Another part power of engine output can pass through first Exported after input shaft 11, the first output shaft 31, travelling gear 313, motor power axis first gear 331, motor power axis 33 to First dynamotor 51, so as to drive the first dynamotor 51 to generate electricity.

Similarly, similar with a gear transmission when engine 4 is with three gear gear auxiliary driving, which is not described herein again.

And for example, by taking two gear transmissions as an example, the input terminal 23 of double clutch 2 engage the second output terminal 22 and with the first output terminal 21 disconnect, two or four gear synchronizer 24c engagements, two gear driven gear 2b, motor power axis synchronizer 33c engagement motor power axis the Two gears 332,1 gear synchronizer 13c is disconnected.

A part of power that engine 4 exports is by the second input shaft 12 and the second output shaft 32 from the second output gear 321 export and distribute to wheel from differential mechanism 61 to differential mechanism 61, power.Meanwhile another part power that engine 4 exports passes through Four gear driving gear 4a, intermediate idler 312 and motor power axis second gear 332 are exported to the first dynamotor 51, so that The first dynamotor 51 is driven to generate electricity.

Similarly, similar with two gear transmissions when engine 4 is with four gear gear auxiliary driving, which is not described herein again.

Under the operating mode, engine 4 realizes the purpose that vehicle is driven in charging, without additionally with rotation, power transfer effect Rate is preferable.

It is understood that when above-mentioned power drive system 100 is in when engine 4 is driving and charges operating mode, it is double Clutch 2 only has an output terminal to be engaged with input terminal 23, but the present invention is not limited thereto, in other embodiments of the invention In, during the operating mode that charges when power drive system 100 is in engine 4 in driving, the first output terminal 21 of double clutch 2 and the Two output terminals 22 can also be engaged with input terminal 23 at the same time.

Specifically, by taking a gear transmission as an example, motor power axis synchronizer 33c engagement motor power axis second gear 332 is double The input terminal 23 of clutch 2 simultaneously engage with the first output terminal 21 and one gear of the second output terminal 22,1 gear synchronizer 13c engagements from Moving gear 1b, for a part of power that engine 4 exports by being exported after the first input shaft 11, the first output shaft 31, engine 4 is defeated Another part power gone out can by exported after the second input shaft 12, intermediate idler 312, motor power axis second gear 332 to First dynamotor 51, so as to drive the first dynamotor 52 to generate electricity.

Similarly, it is similar with a gear transmission when engine 4 is with three gear gear auxiliary driving, one or three gear synchronizer 13c engagements Three gear driven gear 3b, which is not described herein again.

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, first output shaft 31) 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.

Electronic differential lock construction according to embodiments of the present invention is described in detail below with reference to Fig. 2-Fig. 5, which can be real Occur a pair of driving wheels that locking skids during wheel-slip phenomenon now, so as to improve slipping phenomenon, improve trafficability energy.

As Figure 2-Figure 5, which includes the 3rd dynamotor 201, the 4th dynamotor 301 With anti-skidding synchronizer 503.Wherein, 4 and/or first dynamotor 51 of engine is used to drive pair of wheels 71, the 3rd electricity Dynamic 201 and the 4th dynamotor 301 of generator is arranged for second pair of wheel 72 of driving, wherein before pair of wheels 71 is A pair in wheel and trailing wheel, second pair of wheel 72 are the another pair in front wheels and rear wheels.In the example of Fig. 2-Fig. 4, start 4 and first dynamotor 51 of machine drives front-wheel 71, and the 3rd dynamotor 201 and the 4th dynamotor 301 are respectively used to Drive two trailing wheels 72.

With reference to shown in Fig. 2-Fig. 5, the 3rd dynamotor 201 is arranged to link with one in second pair of wheel 72, 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 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. 4, the 3rd electricity Dynamic 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 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 Fig. 2-Fig. 5 of the 3rd dynamotor 201, the 4th dynamotor 301 and wheel Example be described in detail.

In certain embodiments, as shown in figs 2-4, 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 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 figs 2-4, 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 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 figs 2-4, the gear structure used between the 4th dynamotor 301 and corresponding wheel It 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 Fig. 2, 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 72 are taken turns by synchronous rotary.

In other examples, as shown in figure 3, anti-skidding synchronizer 503 is arranged on the first power output shaft 202 and sets 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 72 by synchronous rotary.

In other example, as shown in figure 4, anti-skidding synchronizer 503 is arranged on first gear axis 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 72 are taken turns by synchronous rotary.

Alternatively, in the example of hgure 5, 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 5, 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 can have the following advantages that：

1) the mixed dynamic model formula of full gear is realized, and the first dynamotor 51 passes through motor power axis 33, travelling gear 313 and first output gear 311 can directly output power to differential mechanism 63, the power utilization rate of the first dynamotor 51 Height, avoids the energy loss caused by unnecessary intermediate transfer；

2) the first dynamotor 51 can carry out rotational speed regulation according to operating mode, so as to match dynamic from engine 4 Power；

3) parking charging can be achieved, and path is shorter, without with energy loss, charge efficiency is high, can realize and quickly fill Electricity；

4) 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；

5) 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 is fixedly installed in each in one input shaft and 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, wherein first output shaft and second output One of overhead set in axis is provided with an intermediate idler and is further fixedly arranged on a travelling gear, the intermediate idler Engaged with driving gear one of them described；

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 is engaged with the intermediate idler and the motor power axis first gear and the transmission Gear engages, each in the motor power axis first gear and the motor power axis second gear can pass through synchronizer Synchronous effect and with the motor power axis synchronous rotary；

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 A gear driving gear, three gear driving gears are provided with, two gear driving gear and four gears are fixedly installed on second input shaft Driving gear；

The first output shaft overhead, which covers, is provided with a gear driven gear, three gear driven gears, empty set on second output shaft It is provided with two gear driven gears, four 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 Two or four gear synchronizers are provided between described four gear driven gears.
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 3, it is characterised in that the intermediate idler empty set is set On first output shaft and the travelling gear is fixed on first output shaft.
6. it is used for the power drive system of vehicle according to claim 3, it is characterised in that the intermediate idler and described four Keep off driving gear engagement.
7. 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 and second output gear respectively with the main deceleration on differential for vehicles Device driven gear engages.
8. 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 one of master with intermediate idler engaged transmission Moving gear, and it is by synchronization of the motor power axis synchronizer to the motor power axis second gear that the power is defeated Go out to first dynamotor to drive first dynamotor to generate electricity.
9. 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.
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 One in corresponding second pair of wheel is connected with the first semiaxis, and second gear is provided with first semiaxis； The power drive system further includes the 3rd gear and the 4th gear, and the 3rd gear engages and described with the first gear 4th gear is engaged with the second gear, and the 3rd gear is coaxially arranged with the 4th gear and can synchronous rotary；With And

The 5th gear, the 4th dynamotor are provided with corresponding second power output shaft of 4th dynamotor Described another in corresponding second pair of wheel is connected with the second semiaxis, and the 6th tooth is provided with second semiaxis Wheel；The power drive system further includes the 7th gear and eighth gear, the 7th gear engaged with the 5th gear and The eighth gear is engaged with the 6th gear, and the 7th gear is coaxially arranged with the eighth gear and can synchronously revolve Turn；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 optional Engage to selecting property 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 one coaxial connected and described 4th electricity in corresponding second pair of wheel Another is coaxial connected with described in corresponding second pair of wheel for dynamic corresponding second power output shaft of generator, described Anti-skidding synchronizer is arranged on corresponding first power output shaft of the 3rd dynamotor and is arranged to optionally connect Close corresponding second power output shaft of the 4th dynamotor.
14. a kind of vehicle, it is characterised in that passed including the power for vehicle according to any one of claim 1-12 Dynamic system.