CN108001199A

CN108001199A - Power drive system and there is its vehicle

Info

Publication number: CN108001199A
Application number: CN201610933643.0A
Authority: CN
Inventors: 廉玉波; 凌和平; 翟震; 徐友彬; 黄威
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2016-10-31
Filing date: 2016-10-31
Publication date: 2018-05-08
Anticipated expiration: 2036-10-31
Also published as: CN108001199B

Abstract

The invention discloses a kind of power drive system and there is its vehicle, power drive system includes：Power source；Variable-speed unit；The first generator unit including the first dynamotor and unit coupling part；Handover module, the first dynamotor connect variable-speed unit or unit coupling part by handover module selectivity power coupling；System dynamic output section；Mode conversion device, mode conversion device include input unit and output section, and conversion equipment input unit is connected with variable-speed unit and unit coupling part power coupling respectively, and output section is connected with system dynamic output section, and input unit is connected with output section selectivity power coupling；When conversion equipment input unit is connected with conversion equipment output section power coupling, the rotating speed of conversion equipment input unit is greater than or equal to the rotating speed of conversion equipment output section.The drive pattern of vehicle can be so enriched, and vehicle can adapt to different road conditions, can lift the driving experience of driver.

Description

Power drive system and there is its vehicle

Technical field

The present invention relates to technical field of vehicle, more particularly to a kind of power drive system of vehicle and passed with the power The vehicle of dynamic 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, part hybrid vehicle drive pattern is few, transmission efficiency is driven It is relatively low, it is impossible to after meeting that vehicle adapts to the requirement of various road conditions, especially hybrid vehicle feed (when battery capacity is insufficient), Vehicle dynamic property and handling capacity deficiency.And in order to realize power generation in parking operating mode, it is necessary to extraly increase transmission mechanism, integrate Spend low, generating efficiency is low.

The content of the invention

It is contemplated that solve at least some of the technical problems in related technologies.For this reason, the present invention carries Go out a kind of power drive system of vehicle, the power drive system drive pattern is more, and can effectively adjust output to wheel Power so that vehicle can adapt to various road conditions.

The present invention further proposes a kind of vehicle.

The power drive system of vehicle according to the invention, including：Power source；Variable-speed unit, the variable-speed unit are suitable for Optionally it is connected with the power source power coupling；First generator unit, the first generator unit bag Include the first dynamotor and the first generator unit coupling part；Handover module, wherein first dynamotor leads to Cross the handover module selectivity power coupling and connect the variable-speed unit or the first generator unit coupling part；System Power output of uniting portion；Mode conversion device, the mode conversion device include conversion equipment input unit and conversion equipment output section, The conversion equipment input unit connects with the variable-speed unit and the first generator unit coupling part power coupling respectively Connect, and suitable for by least one power output in the power source and first generator unit, it is described Conversion equipment output section is connected with the input terminal of the system dynamic output section, the conversion equipment input unit and the converting means Put output section selectivity power coupling connection；The conversion equipment input unit is connected with conversion equipment output section power coupling When, the rotating speed of the conversion equipment input unit is greater than or equal to the rotating speed of the conversion equipment output section.

The power drive system of vehicle according to the invention, by adjusting conversion equipment input unit, to be transferred to conversion equipment defeated Go out the output speed in portion, the drive pattern of vehicle can be enriched, and the economy and dynamic property of vehicle can be improved, and car Different road conditions are can adapt to, and the passability of vehicle can be significantly improved and ability of getting rid of poverty, can lift driver's Driving experience.And by the mode conversion device, the rotating speed and moment of torsion of conversion equipment output section can be not only adjusted, can be with Realize the function of power generation in parking.When both ensure that the driving of the first dynamotor and feedback, power transmission is direct, transmission efficiency Height, and ensure the simple and reliable of power generation in parking pattern switching.Simultaneously as engine power and the first dynamoelectric and power generation mechanomotive force Coupled at mode conversion device, the variable-speed unit applied to engine can use the speed change of original conventional fuel oil car completely Device, it is not necessary to do any change, the power output of the first dynamotor fully relies on the switching of mode conversion device to realize. Such power drive system, which designs, make it that each drive pattern control is relatively independent, compact-sized, it is easy to accomplish.

Vehicle according to the invention, includes the power drive system of above-mentioned vehicle.

Brief description of the drawings

Fig. 1-Fig. 6 is the schematic diagram of the power drive system of vehicle according to embodiments of the present invention；

Fig. 7-Fig. 8 is the structure diagram of the power drive system of vehicle according to embodiments of the present invention；

Fig. 9-Figure 14 is the schematic diagram of mode conversion device, system dynamic output section and power on-off system；

Figure 15-Figure 20 is the schematic diagram of power drive system；

Figure 21-Figure 25 is the structure diagram of the power drive system of vehicle 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.Below with reference to The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.

On motor vehicle driven by mixed power, vehicle can arrange multiple systems, for example, power drive system 1000, which passes Dynamic system 1000 can be used for the front-wheel or trailing wheel for driving vehicle, drive the front-wheel of vehicle with power drive system 1000 below Exemplified by be described in detail, certainly, power drive system 1000 can be combined with other drive systems driving vehicle rear rotation Dynamic, so that vehicle is four-wheel drive cars, other systems can be power drive system 700.

Below with reference to the accompanying drawings power drive system 1000 according to embodiments of the present invention is described in detail.

As shown in figs 1 to 6, power drive system 1000 can include：Power source 100, variable-speed unit 200, first are electronic Generator unit 300, system dynamic output section assembly 400, system dynamic output section assembly 400 include system dynamic output section 401 and mode conversion device 402, certainly, power drive system 1000 can also include other mechanical parts, for example, switching mould Block 304, the second dynamotor 600, first clutch 202 and second clutch L2 etc..

Power source 100 can be engine, be of coupled connections with power source 100 to 200 being suitably selected for property of variable-speed unit, As shown in figs 1 to 6, power source 100 can axially be connected with variable-speed unit 200, wherein power source 100 and variable-speed unit 200 it Between can be provided with first clutch 202, first clutch 202 can control connecing between power source 100 and variable-speed unit 200 Close, off-state.

Variable-speed unit 200 can be speed changer, and certainly, the present invention is not limited thereto, and variable-speed unit 200 can also be simple The gear of a bit, for example, gear reduced drive mechanism.

It is below that speed changer is described in detail as example using variable-speed unit 200.

Variable-speed unit 200 can have a variety of arrangement forms, and the change of input shaft, output shaft, gear can be formed newly Variable-speed unit 200, be described in detail below by taking the variable-speed unit 200 in the power drive system 1000 shown in Fig. 7 as an example.

As shown in fig. 7, variable-speed unit 200 can include：Variable-speed dynamic input unit, variable-speed dynamic output section and variable-speed unit Output section 201, variable-speed dynamic input unit can be selectively engaged with power source 100, be moved with transmitting caused by power source 100 Power.First clutch 202 can include input terminal and output terminal, and input terminal is connected with power source 100, output terminal and variable-speed dynamic Input unit is connected, and when input terminal and output terminal engagement, power source 100 and the engagement of variable-speed dynamic input unit are with passing power.

Variable-speed dynamic output section is configured and adapted to the power in variable-speed dynamic input unit is synchronous by variable-speed unit The synchronization of device and output power to variable-speed unit output section 201, variable-speed unit output section 201 and mode conversion device 402 4020 power coupling of conversion equipment input unit connects.

Specifically, as shown in fig. 7, variable-speed dynamic input unit can include at least one input shaft, each input shaft with Power source 100 is selectively engageable, and at least one driving gear is provided with each input shaft.

Variable-speed dynamic output section includes：At least one output shaft, is provided with least one driven gear on each output shaft, Driven gear is engaged with accordingly driving gear, and variable-speed unit output section 201 is at least one main reducing gear driving gear Z, extremely A few main reducing gear driving gear Z is fixed at least one output shaft correspondingly.That is, variable-speed unit exports Portion 201 can be the output gear on output shaft, which can be fixed on corresponding output shaft, output gear and master Reduction driven gear engagement is with into action edge transmission.

Wherein, input shaft can be multiple, and the sequentially coaxially nested setting of multiple input axis, in power source 100 to defeated When entering axis transmission power, power source 100 can be engaged optionally with one in multiple input axis.By by multiple input axis Coaxial nested setting, can cause 200 characteristics of compact layout of variable-speed unit, and axial length is small, and radial dimension is small, becomes so as to improve The structural compactness of fast unit 200.

For example, as shown in fig. 7, variable-speed unit 200 can be six gear variable-speed units 200, variable-speed dynamic input unit can wrap Include：First input shaft I and the second input shaft II, the second input shaft II are set on the first input shaft I, and first clutch 202 can Think double clutch, double clutch has input terminal, the first output terminal and the second output terminal, and input terminal is selectively engageable One output terminal and the second output terminal it is at least one.That is, input terminal can engage the first output terminal, alternatively, input terminal The second output terminal can be engaged, or input terminal can simultaneously engage with the first output terminal and the second output terminal.First output terminal with First input shaft I is connected, and the second output terminal is connected with the second input shaft II.The output terminal of power source 100 and double clutch it is defeated Enter end to be connected.First input shaft I is connected with the first output terminal, and the second input shaft II is connected with the second output terminal.

First input shaft I and the second input shaft II are fixedly installed at least one driving gear respectively, specifically, such as Fig. 7 It is shown, a gear driving gear 1Ra, three gear driving gear 3a and five gear driving gear 5a are provided with the first input shaft I, second is defeated Enter to be provided with the gear driving gears of two gear driving gear 2a and four or six 46a on axis II.Wherein, it is defeated to be set in first for the second input shaft II Enter on axis I, so can effectively shorten the axial length of power drive system 1000, so as to reduce power drive system 1000 take the space of vehicle.Four or six above-mentioned gear driving gear 46a refer to that the gear can be at the same time as four gear driving tooths Wheel and six gear driving gears use, and can so shorten the axial length of the second input shaft II, dynamic so as to preferably reduce The volume of power transmission system 1000.

Wherein, it is two gear actives according to the distributing order with the nearly remote mode of engine distance, multiple gear driving gears Gear 2a, four or six gear driving gear 46a, three gear driving gear 3a, a gear driving gear 1Ra and five gear driving gear 5a.Pass through The position of the multiple gear driving gears of reasonable Arrangement, can cause the location arrangements of multiple gear driven gears and multiple output shafts Rationally, it is small so that power drive system 1000 is simple in structure.

Output shaft includes：First output shaft III and the second output shaft IV, the first output shaft III and the second output shaft IV are distinguished At least one driven gear is set with, at least one driven gear is accordingly engaged with least one driving gear.

First output shaft, III overhead set is provided with a gear driven gear 1b, two gear driven gear 2b, three gear driven gear 3b With four gear driven gear 4b, IV overhead of the second output shaft set is provided with the gear driven gears of five gear driven gear 5b and six 6b.Wherein One gear driving gear 1Ra is engaged with a gear driven gear 1b, and two gear driving gear 2a is engaged with two gear driven gear 2b, three gear masters Moving gear 3a is engaged with three gear driven gear 3b, and four or six gear driving gear 46a are engaged with four gear driven gear 4b, five gear driving tooths Wheel 5a is engaged with five gear driven gear 5b, and four or six gear driving gear 46a are engaged with six gear driven gear 6b.

One or three gear synchronizer S13, one or three gear synchronizers are provided between one gear driven gear 1b and three gear driven gear 3b S13 can be used for synchronous one and keep off driven gear 1b and the first output shaft III, and can be used for synchronous three keep off driven gear 3b and First output shaft III.

Two or four gear synchronizer S24, two or four gear synchronizers are provided between two gear driven gear 2b and four gear driven gear 4b S24 can be used for synchronous two and keep off driven gear 2b and the first output shaft III, and can be same as synchronous four keep off driven gear 4b and First output shaft III.

The sides of five gear driven gear 5b are provided with five gear synchronizer S5, five gear synchronizer S5 can be used for synchronous five gear from Moving gear 5b and the second output shaft IV.The side of six gear driven gear 6b is provided with six gear synchronizer S6R, six gear synchronizer S6R It can be used for synchronous six and keep off driven gear 6b and the second output shaft IV.

In multiple output shafts an overhead set is provided with the driven gear Rb that reverses gear, reverse gear driven gear Rb with it is corresponding defeated Shaft is selectively engaged disconnection, reverses gear driven gear Rb's for engaging for example, being additionally provided with a corresponding output shaft Reverse gear synchronizer.As shown with 7, it is provided with the driven gear Rb that reverses gear on the second output shaft IV, reversing gear on the second output shaft IV is same Step device can be used for synchronously reverse gear driven gear Rb and the second output shaft IV.

Further, power drive system 1000 can also include：Reverse gear jackshaft V, is fixedly installed on the jackshaft V that reverses gear There are the first reverse idler gear Rm1 and the second reverse idler gear Rm2, the first reverse idler gear Rm1 and one of gear Driving gear (i.e. driving gear) engages, and the second reverse idler gear Rm2 is engaged with the driven gear Rb that reverses gear.One of gear Driving gear can be a gear driving gear 1Ra, during the power being delivered on a gear driving gear 1Ra can reverse gear by first Between gear Rm1 pass to the jackshaft V that reverses gear, the jackshaft V that reverses gear can be imparted power to by the second reverse idler gear Rm2 Reverse gear driven gear Rb, and the driven gear Rb that reverses gear can impart power to the second output shaft IV by reverse gear synchronizer, and second Output shaft IV can impart power to main reducing gear driven gear Z ' by IV output gear of the second output shaft, main reducing gear from Moving gear Z ' can pass to the wheels of both sides to drive vehicle movement by system dynamic output section 401.That is, first Output gear and the second output gear can be respectively main reducing gear driving gear Z, the main reducing gear driving gear Z and main deceleration Device driven gear Z ' is engaged.

Since the driven gear Rb that reverses gear is set on the second output shaft IV, reverse gear driven gear Rb can with it is adjacent in addition One gear driven gear shares reverse gear synchronizer.The quantity for the synchronizer arranged can be so saved on the second output shaft IV, So as to shorten the axial length of the second output shaft IV, and the cost of power drive system 1000 can be reduced.It is for example, another An outer gear driven gear can be six gear driven gear 6b, and in other words, reverse gear synchronizer may be constructed six gear synchronizers S6R.Reverse gear synchronizer can be arranged on six gear driven gear 6b between the driven gear Rb that reverses gear.

First generator unit 300 includes the first dynamotor 302 and the first generator unit coupling part 301, wherein, the first dynamotor 302 by handover module 304 optionally power coupling connect variable-speed unit 200 or First generator unit coupling part 301.That is, when the first dynamotor 302 as motor in use, first The power of dynamotor 302, which can be exported optionally, gives variable-speed unit 200 and first generator unit coupling part 301.When the first dynamotor 302 as generator in use, energy can be optionally through variable-speed unit 200 and first Generator unit coupling part 301 passes to the first dynamotor 302 so that the first dynamotor 302 is sent out Electricity.

Specifically, the first dynamotor 302 can optionally power coupling connection becomes quick-action by handover module 304 Power output section.For example, two gear driven gear 2b of the first output shaft III.

Mode conversion device 402 includes conversion equipment input unit 4020 and conversion equipment output section 4022, and conversion equipment is defeated Enter portion 4020 to be connected with 200 and first generator unit coupling part of variable-speed unit, 301 power coupling respectively, conversion equipment is defeated Enter portion 4020 suitable at least one power output in ultromotivity in future source 100 and the first generator unit 300, conversion Device output section 4022 is connected with the input terminal of system dynamic output section 401, and conversion equipment input unit 4020 and conversion equipment are defeated Go out the selective power coupling connection in portion 4022.Wherein, conversion equipment input unit 4020 can the retarder driven gearwheel Z ' based on, on The variable-speed unit output section 201 for the variable-speed unit 200 stated can be main reducing gear driving gear Z, main reducing gear driving gear Z and Main reducing gear driven gear Z ' is engaged.Thus, power source 100 can be turned by variable-speed unit 200 to mode conversion device 402 4020 passing power of changing device input unit, and when conversion equipment input unit 4020 and conversion equipment output section 4022 engage, Power source 100 imparts power to system dynamic output section 401 to drive the front-drive of vehicle.

First generator unit coupling part 301 can be main reducing gear driving gear Z, the first generator unit Coupling part 301 is connected with 4020 power coupling of conversion equipment input unit.It is understood that main reducing gear driving gear Z can be with To be multiple, the variable-speed unit output section 201 (i.e. the first output gear and the second output gear) of variable-speed unit 200 and first electronic First generator unit coupling part 301 of generator unit 300 all can be main reducing gear driving gear Z.

By set handover module 304 can change the first dynamotor 302 power output path and power it is defeated Enter path.The drive pattern of power drive system 1000 so can be preferably enriched, so as to improve the dynamic property of vehicle And economy.

For example, disconnected and the first dynamotor 302 in conversion equipment input unit 4020 and conversion equipment output section 4022 When being connected with variable-speed unit 200 by 304 power coupling of handover module, the power that power source 100 exports is suitable for passing sequentially through change The first dynamotor 302 is passed to after fast unit 200, handover module 304 to drive the first dynamotor 302 to generate electricity.

And for example, disconnected and the first dynamotor 302 in conversion equipment input unit 4020 and conversion equipment output section 4022 When being connected with the first generator unit coupling part 301 by 304 power coupling of handover module, power source 100 exports dynamic Power is suitable for passing sequentially through variable-speed unit 200, conversion equipment input unit 4020, the first generator unit coupling part 301, switching The first dynamotor 302 is passed to after module 304 to drive the first dynamotor 302 to generate electricity.

Path is inputted by above two power, the input that can increase energy input to the first dynamotor 302 is imitated Rate, so as to improve the power generation in parking efficiency of power drive system 1000, and then can reduce the waste of the energy, can improve The dynamic property and economy of vehicle.

The arrangement form of handover module 304 is described in detail below in conjunction with the accompanying drawings.

According to a preferred embodiment of the present invention, as shown in fig. 7, handover module 304 can include：First handover module VIII and second handover module axis Ⅹ of axis, power generation in parking driving gear 3041a, parking hair are fixed with the first handover module axis VIII Electric driving gear 3041a coordinates with variable-speed unit 200 to be driven.

Power generation in parking gear driven gear 3041b, power generation in parking gear driven gear are set with second handover module axis Ⅹ 3041b is engaged with power generation in parking gear driving gear 3041a, and the second handover module axis Ⅹ and the first dynamotor 302 coordinate biography It is dynamic, the selectivity of the second handover module axis Ⅹ and power generation in parking gear driven gear 3041b or the first generator unit coupling part 301 engagements.

That is, when the first dynamotor 302 engages the first dynamotor list by the second handover module axis Ⅹ During first coupling part 301, the first dynamotor 302 is exported by the first generator unit coupling part 301 to system dynamic Portion 401 exports power.

When the first dynamotor 302 engages power generation in parking by the second handover module axis Ⅹ keeps off driven gear 3041b, First dynamotor 302 keeps off driven gear 3041b and power generation in parking driving gear 3041a to variable-speed unit by power generation in parking 200 output power.

It can so cause 300 characteristics of compact layout of the first generator unit, reliable transmission and transmission efficiency, take empty Between it is small.

As shown in figure 21, the first dynamotor 302 can be connected directly with the second handover module axis Ⅹ, certainly, this hair Bright to be not limited to this, the first dynamotor 302 can also be indirectly connected with the second handover module axis Ⅹ, as shown in fig. 7, first Generator unit 300 can also include rough lock 303, and the first dynamotor 302 can pass through rough lock 303 and switching 304 power coupling of module connects.

According to a further advantageous embodiment of the invention, as shown in figure 8, handover module 304 can include：First switching mould VIII and second handover module axis Ⅹ of block axis, is fixed with power generation in parking driving gear 3041a on the first handover module axis VIII and stays Car power generation idler gear 3041m, power generation in parking driving gear 3041a coordinate with variable-speed unit 200 to be driven.

Power generation in parking gear driven gear 3041b, power generation in parking gear driven gear are set with second handover module axis Ⅹ 3041b is engaged with power generation in parking idler gear 3041m, and the second handover module axis Ⅹ and the first dynamotor 302 coordinate transmission, The selectivity of second handover module axis Ⅹ and power generation in parking gear driven gear 3041b or the first generator unit coupling part 301 Engagement.For example, the second handover module axis Ⅹ can be provided with the second handover module axis synchronizer SQ, the second handover module axis is synchronous Device SQ is arranged between power generation in parking gear driven gear 3041b and the first generator unit coupling part 301, so that second cuts Power generation in parking gear driven gear 3041b and the second handover module axis can be selectively engaged and disconnect by changing module axle synchronizer SQ Ⅹ, and can be selectively engaged and disconnect the first generator unit coupling part 301 and the second handover module axis Ⅹ.

When the first dynamotor 302 engages power generation in parking by the second handover module axis Ⅹ keeps off driven gear 3041b, First dynamotor 302 keeps off driven gear 3041b, power generation in parking idler gear 3041m and power generation in parking by power generation in parking Driving gear 3041a exports power to variable-speed unit 200.

It can so cause 300 connection and reasonable arrangement of the first generator unit, be conducive to the spirit of the first dynamotor 302 Arrangement living, and reliable transmission, occupy little space.

First dynamotor 302 can be connected directly with the second handover module axis Ⅹ, certainly, the present invention is not limited to This, the first dynamotor 302 can also be indirectly connected with the second handover module axis Ⅹ, as shown in figure 8, the first dynamotor Unit 300 can also include rough lock 303, and the first dynamotor 302 can be dynamic by rough lock 303 and handover module 304 Power is of coupled connections.

Rough lock 303 can include three gears, and the motor that one Z1 of gear can be fixed on the first dynamotor 302 is defeated On shaft, idler gear Zm is engaged between two Z2 of one Z1 of gear and gear, and two Z2 of gear is fixed on the second handover module axis Ⅹ On.The transmission of one Z1 of gear and idler gear Zm and the transmission of idler gear Zm and two Z2 of gear, which can be played to slow down, increases square Effect.

When conversion equipment input unit conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, turn The rotating speed of changing device input unit 4020 is greater than or equal to the rotating speed of conversion equipment output section 4022.That is, in conversion equipment Carry out there are two kinds of transmission modes during power transmission between input unit 4020 and conversion equipment output section 4022, one kind is directly transmission Pattern, the i.e. rotating speed of conversion equipment input unit 4020 are equal to the rotating speed of conversion equipment output section 4022, and another kind is reduction of speed transmission Pattern, the i.e. rotating speed of conversion equipment input unit 4020 are higher than the rotating speed of conversion equipment output section 4022, such mode conversion device 402 add the gear of vehicle, and vehicle max. output torque can be made to amplify N times, improve dynamic property, handling capacity (such as most Big climbable gradient, ability of getting rid of poverty).Especially for conventional hybrid vehicle, due to adding battery pack, motor, electric-control system, Cause kerb weight big, be only capable of relying on the power output of engine after feed, at this moment handling capacity and dynamic property can give a discount greatly Button, and the hybrid electric vehicle of the mode conversion device 402 in the present invention is used, it can effectively lift dynamic property and pass through energy Power.And both transmission modes, hence it is evident that the drive pattern of vehicle can be enriched, so that vehicle adapts to more differences Operating mode.

Wherein, above-mentioned N is equal to the fast ratio that L gears are kept off relative to D, when vehicle is in L gears, conversion equipment input unit 4020 Power transmission, the rotating speed of conversion equipment input unit 4020 are carried out by direct transfer mode between conversion equipment output section 4022 Higher than the rotating speed of conversion equipment output section 4022；When vehicle is in D gears, conversion equipment input unit 4020 and conversion equipment output Power transmission is carried out by reduction of speed transfer mode between portion 4022, the rotating speed of conversion equipment input unit 4020 is defeated equal to conversion equipment Go out the rotating speed in portion 4022.

Wherein, mode conversion device 402 can be conducive to power source 100 and realize the first generator unit at work 300 intervention, parallel 100 and first generator unit 300 of power source, passes through direct torque couple, Neng Gougeng The advantage that prominent parallel structure dynamic property is strong well, simple in structure and vehicle space layout is easily realized.

Under pure electric vehicle operating mode, the first generator unit 300 has very high transmission efficiency, mode conversion device 402 setting has separated 302 three of variable-speed unit 200, wheel and the first dynamotor so that in three it is any both can To get around third party's work, for example, variable-speed unit 200 is by power transmission between mode conversion device 402 and wheel, at this time for Pure fuel oil operating mode；And for example, variable-speed unit 200 is by 402 and first dynamotor of mode conversion device, 302 power transmission, this When be power generation in parking operating mode；For another example, the first dynamotor 302 is by power transmission between mode conversion device 402 and wheel, It is pure electric vehicle operating mode at this time.In addition, can also so avoid generally mixing with needs in power drive system by complicated in speed change Gearshift and driving-chain the problem of realizing pure electric vehicle operating mode, be particularly suitable in plug-in hybrid vehicle.Certainly, San Zheye It can work at the same time.

Meanwhile mode conversion device 402 can also realize the Ultra-Low Speed gear output of power drive system 1000, that is, have In the embodiment for having variable-speed unit 200, the power from power source 100 first passes through 200 reduction of speed of variable-speed unit, then keeps off and dropping by L Speed, it is possible to achieve power drive system 1000 realizes that Ultra-Low Speed gear exports.Thus the torsion of engine can be amplified to limits very much Square exports.

In control logic, power drive system 1000 proposed by the present invention, does not change double clutch speed-changing basic frameworks And shift logic, the intervention of the first generator unit 300 are showed only as the moment of torsion superposition in output terminal, therefore power source 100 and the control logic of variable-speed unit 200 and the control logic of the first generator unit 300 be it is independent, engine Power output and the power output of the first dynamotor 302 are relatively independent, and each power source output control logic is simple easily real It is existing, and be so conducive to save development time and the cost of producer, the failure rate that system is higher is avoided, even if engine is with becoming Fast 300 system failure of unit will not influence the power output of the first generator unit 300 during pure electric vehicle.

Moreover, when conversion equipment input unit 4020 and conversion equipment output section 4022 disconnect, power source 100 exports dynamic Power is suitable for passing sequentially through variable-speed unit 200, conversion equipment input unit 4020 drives the first generator unit 300 to generate electricity. That is when vehicle is in parking operating mode, the power of power source 100 can pass to the first generator unit 300 with Generate electricity for the first generator unit 300, so as to realize power generation in parking, such power generation in parking need not increase extra Power chain, is only the switching that power generation in parking pattern can be achieved by mode conversion device 402, switching control is simple, transmission It is efficient.Wherein the first dynamotor 302 is arranged to direct-connected converter mode conversion equipment 402, the first dynamotor 302 power outputs are directly efficient, and Brake Energy feedback is efficient.

The power generation in parking efficiency of vehicle can be improved, and the waste of the energy can be reduced.In addition, variable-speed unit 200 is only Need to realize variable-speed torque-converting to engine power, the speed change of regular fuel car can be borrowed completely, it is not necessary to which extra design becomes More, be conducive to the miniaturization of variable-speed unit 200, and automobile research cost can be reduced, shorten the construction cycle.

Finally, these advantages are realized by the mode conversion device 402 before, and are integrated with very high Degree.

Wherein, the arrangement form of mode conversion device 402 has a variety of, and content behind another one is described in detail.

As shown in Fig. 9-Figure 14, system dynamic output section 401 is differential mechanism, and differential mechanism can include two axle shaft gears, Two semiaxis 2000 of two axle shaft gears and vehicle correspond, and the power drive system 1000 of vehicle can also include：It is dynamic Power on-off system 500, engage to 500 being suitably selected for property of power on-off system in two axle shaft gears it is at least one with accordingly The semiaxis 2000 of vehicle.If it is understood that set between the semiaxis 2000 and corresponding axle shaft gear of side dynamic On-off system 500, the power on-off system 500 can control the engagement between the semiaxis 2000 of the side and axle shaft gear to disconnect shape State, if the semiaxis 2000 of both sides sets dynamic on-off system 500 between corresponding axle shaft gear respectively, each power leads to Disconnected device 500 can control the engagement off-state of respective side.Power on-off system 500 can be conducive to vehicle in parking operating mode Shi Jinhang power generation in parking, such first dynamotor 302 are arranged to direct-connected converter mode conversion equipment 402, the first electricity 302 power output of dynamic generator is directly efficient, and Brake Energy feedback is efficient.

As shown in figure 9, power on-off system 500 is arranged between semiaxis 2000 and the corresponding axle shaft gear in left side, such as Shown in Figure 10, power on-off system 500 can be two, and a power on-off system 500 can be arranged on the semiaxis in left side Between 2000 and corresponding axle shaft gear, another power on-off system 500 can be arranged on the semiaxis 2000 on right side and correspond to Axle shaft gear between.

Wherein, the type of power on-off system 500 also has a variety of, for example, as shown in Figure 9 and Figure 10, power on-off system 500 can be clutch.Preferably, as is illustrated by figs. 11 and 12, clutch can be jaw clutch.

Certainly, power on-off system 500 can also be other types, for example, as shown in Figure 13 and Figure 14, power break-make dress It can be synchronizer to put 500.

According to a preferred embodiment of the present invention, as shown in Figure 2 and Figure 5, power drive system 1000 can also include Second dynamotor 600, the second dynamotor 600 is between power source 100 and variable-speed unit 200, the second electronic hair One end of motor 600 is directly connected with 100 power coupling of power source, and the other end selectivity of the second dynamotor 600 Ground is connected with 200 power coupling of variable-speed unit.

As shown in Figure 22 and Figure 23, the second dynamotor 600 can coaxial phase with the input terminal of first clutch 202 Even.Second dynamotor 600 can be arranged between the input terminal and engine of first clutch 202, such engine Power necessarily passes the second dynamotor 600 when being transmitted to input terminal, and the second dynamotor 600 can be used as hair at this time Motor is using to carry out power generation in parking.

As shown in figures 24 and 25, input terminal external tooth can be provided with the input terminal of first clutch 202, second is electronic Generator 600 and input terminal external tooth Z602 links.Gear Z601, gear are provided with the motor shaft of second dynamotor 600 Z601 is engaged with input terminal external tooth Z602.So the power of engine can be passed to by input terminal and input terminal external tooth Z602 Second dynamotor 600, such second dynamotor 600 can be used as generator to carry out power generation in parking.

According to a further advantageous embodiment of the invention, as shown in Fig. 2-Fig. 3, power drive system 1000 can also wrap Include：Second dynamotor 600, for the second dynamotor 600 between power source 100 and variable-speed unit 200, second is electronic One end of generator 600 is connected with 100 power coupling of power source, for example, one end of the second dynamotor 600 optionally with 100 power coupling of power source connects, the other end of the second dynamotor 600 optionally with 200 power coupling of variable-speed unit Connection.

As shown in Figure 3 and Figure 6, second clutch L2 can be provided between the second dynamotor 600 and engine.The Two clutch L2 can be single clutch, and single clutch can control the engagement between engine and the second dynamotor 600 Disconnect, and the engagement between engine and input terminal can be controlled to disconnect.By setting second clutch L2, can rationally control The power generation in parking state of the second dynamotor 600 is made, so that power drive system 1000 is simple in structure and drives Pattern conversion is reliable.

Preferably, second clutch L2 is built in the internal rotor of the second dynamotor 600.So can preferably it contract The axial length of short power drive system 1000, so as to reduce the volume of power drive system 1000, can improve power Flexible arrangement of the transmission system 1000 on vehicle.In addition, make when the second dynamotor 600 is also used as starter motor With.

Preferably, the input terminal of power source 100, second clutch L2 and double clutch is coaxially arranged.It can so make It is compact-sized to obtain power drive system 1000, it is small.

It should be noted that for the power drive system 1000 of above three embodiment, in the axial direction, the second electricity Dynamic generator 600 is respectively positioned between 100 and first arrangement of clutch of power source, so can effectively reduce power drive system 1000 Axial length, and can make it that the location arrangements of the second dynamotor 600 are reasonable, power drive system can be improved 1000 structural compactness.

First dynamotor 302 is the main drive motor of power drive system 1000, so the first dynamotor 302 Capacity and volume it is larger.Wherein, for the first dynamotor 302 and the second dynamotor 600, the first electronic hair The rated power of motor 302 is more than the rated power of the second dynamotor 600.Such second dynamotor 600 can select Small and small rated power dynamotor is taken, so that power drive system 1000 is simple in structure, it is small, And in power generation in parking, drive path is short between the second dynamotor 600 and power source 100, generating efficiency is high, so as to With effectively by a part of power-conversion of power source 100 into electric energy.The peak power of wherein the first dynamotor 302 is equally big In the peak power of the second dynamotor 600.

Preferably, the rated power of the first dynamotor 302 is twice of rated power of the second dynamotor 600 Or more than twice.The peak power of first dynamotor 302 is twice or two of the peak power of the second dynamotor 600 More than times.For example, the rated power of the first dynamotor 302 can be 60kw, the rated power of the second dynamotor 600 Can be 24kw, the peak power of the first dynamotor 302 can be 120kw, the peak power of the second dynamotor 600 Can be 44kw.

It should be noted that differential mechanism can be conventional open type differential, for example, bevel differential or Cylinder Gear Differential mechanism is taken turns, but not limited to this；Certainly, differential mechanism can also be locking differential, for example, mechanical lock-type differential, electronic lock Formula differential mechanism etc., the differential mechanism type different according to different Truck type choices of power drive system 1000, such selection are main According to including integral vehicle cost, vehicle lightweight, vehicle cross-country ability etc..Differential mechanism includes housing 4011, and housing 4011 can be The input terminal of differential mechanism.

The drive pattern of the power drive system 1000 of vehicle have it is a variety of, below with power drive system 1000 shown in Fig. 7 Exemplified by be described in detail.

The power drive system 1000 of vehicle has the first power source drive pattern, and the power drive system of vehicle is in the During one power source drive pattern, the first dynamotor 302 does not work, and variable-speed unit 200 connects with 100 power coupling of power source Connect, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, and the power that power source 100 exports is successively Exported by variable-speed unit 200, conversion equipment input unit 4020 and conversion equipment output section 4022 and give system dynamic output section 401, and the rotating speed of conversion equipment input unit 4020 is identical with the rotating speed of the input terminal of system dynamic output section 401.This is vehicle Driven.

The power drive system 1000 of vehicle has the second power source drive pattern, and the power drive system of vehicle is in the During two power source drive patterns, the first dynamotor 302 does not work, and variable-speed unit 200 connects with 100 power coupling of power source Connect, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, and the power that power source 100 exports is successively Exported by variable-speed unit 200, conversion equipment input unit 4020 and conversion equipment output section 4022 to system dynamic output section 401 Input terminal, and the rotating speed of conversion equipment input unit 4020 higher than system dynamic output section 401 input terminal rotating speed.It is so dynamic The power that power source 100 exports passes through the reduction of speed again of mode conversion device 402 again after a reduction of speed of variable-speed unit 200, from And can preferably play to slow down and increase the effect of square, and then the handling capacity of vehicle can be improved.

The power drive system 1000 of vehicle has the first pure electric vehicle drive pattern, and the power drive system of vehicle is in the One pure electric vehicle drive pattern, power source 100 do not work, 4022 power coupling of conversion equipment input unit 4020 and conversion equipment output section Connection is closed, the first dynamotor 302 and the first generator unit coupling part 301 pass through 304 power coupling of handover module Connection, the power of the first dynamotor 302 output pass sequentially through handover module 304, the first generator unit coupling part 301st, conversion equipment input unit 4020 and conversion equipment output section 4022 are exported to system dynamic output section 401, and conversion equipment The rotating speed of input unit 4020 is identical with the rotating speed of the input terminal of system dynamic output section 401.Such first dynamotor 302 Power output path is short, transmission efficiency, so as to improve the drive efficiency of the first dynamotor 302, can improve car Dynamic property.

The power drive system 1000 of vehicle has the second pure electric vehicle drive pattern, and the power drive system of vehicle is in the Two pure electric vehicle drive patterns, power source 100 do not work, 4022 power coupling of conversion equipment input unit 4020 and conversion equipment output section Connection is closed, the first dynamotor 302 and the first generator unit coupling part 301 pass through 304 power coupling of handover module Connection, the power of the first dynamotor 302 output pass sequentially through handover module 304, the first generator unit coupling part 301st, conversion equipment input unit 4020 and conversion equipment output section 4022 export the input terminal to system dynamic output section 401, and Rotating speed of the rotating speed of conversion equipment input unit 4020 higher than the input terminal of system dynamic output section 401.Such first dynamoelectric and power generation The power output path of machine 302 is short, transmission efficiency, and by the reduction of speed of mode conversion device 402, can enrich power biography The drive pattern of dynamic system 1000, can make it that vehicle wheel rotational speed is suitable.

The power drive system 1000 of vehicle has a 3rd pure electric vehicle drive pattern, and the power drive system of vehicle is in the Three pure electric vehicle drive patterns, power source 100 do not work, 4022 power coupling of conversion equipment input unit 4020 and conversion equipment output section Connection is closed, the first dynamotor 302 is connected with variable-speed unit 200 by 304 power coupling of handover module, the first dynamoelectric and power generation It is defeated that the power that machine 302 exports passes sequentially through handover module 304, variable-speed unit 200, conversion equipment input unit 4020 and conversion equipment Go out portion 4022 to export to system dynamic output section 401, and the rotating speed of conversion equipment input unit 4020 and system dynamic output section 401 Input terminal rotating speed it is identical.Such first dynamotor 302 is exported after reduction of speed twice to system dynamic output section 401 Input terminal so that low vehicle speeds, the drive pattern of vehicle can be enriched.

The power drive system 1000 of vehicle has a 4th pure electric vehicle drive pattern, and the power drive system of vehicle is in the Four pure electric vehicle drive patterns, power source 100 do not work, 4022 power coupling of conversion equipment input unit 4020 and conversion equipment output section Connection is closed, the first dynamotor 302 is connected with variable-speed unit 200 by 304 power coupling of handover module, the first dynamoelectric and power generation It is defeated that the power that machine 302 exports passes sequentially through handover module 304, variable-speed unit 200, conversion equipment input unit 4020 and conversion equipment Go out portion 4022 and export input terminal to system dynamic output section 401, and the rotating speed of conversion equipment input unit 4020 is moved higher than system The rotating speed of the input terminal of power output section 401.Such first dynamotor 302 exports defeated to system dynamic after reduction of speed twice Go out the input terminal in portion 401, so that low vehicle speeds, the drive pattern of vehicle can be enriched.

The power drive system 1000 of vehicle have first it is counter drag start-up mode, the power drive system of vehicle is in first It is counter to drag start-up mode, the first dynamotor 302 and the first generator unit coupling part 301 dynamic by handover module 304 Power is of coupled connections, and the power of the first dynamotor 302 output passes sequentially through handover module 304, the first generator unit Coupling part 301, conversion equipment input unit 4020, variable-speed unit 200 are exported drives power source 100 to start to power source 100.So First dynamotor 302 can be used as starter motor, so as to start engine.

The power drive system 1000 of vehicle have second it is counter drag start-up mode, the power drive system of vehicle is in second Counter to drag start-up mode, the first dynamotor 302 is connected with variable-speed unit 200 by 304 power coupling of handover module, the first electricity The power that dynamic generator 302 exports passes sequentially through handover module 304, variable-speed unit 200 exports and drives power source to power source 100 100 start.Such first dynamotor 302 can be used as starter motor, so as to start engine.

The power drive system 1000 of vehicle has the first mixed dynamic drive pattern, and the power drive system of vehicle is in first During mixed dynamic drive pattern, 100 and first dynamotor 302 of power source works, variable-speed unit 200 and 100 power of power source It is of coupled connections, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the first dynamotor 302 It is connected with the first generator unit coupling part 301 by 304 power coupling of handover module, the power that power source 100 exports Pass sequentially through variable-speed unit 200, conversion equipment input unit 4020 and conversion equipment output section 4022 export give system dynamic output Portion 401, the power of the first dynamotor 302 output pass sequentially through handover module 304, the first generator unit coupling part 301st, conversion equipment input unit 4020 and conversion equipment output section 4022 are exported to system dynamic output section 401,100 He of power source Exported after the power coupling of first dynamotor 302 output to conversion equipment input unit 4020, and conversion equipment input unit 4020 rotating speed is identical with the rotating speed of the input terminal of system dynamic output section 401.In this way, the power transmission efficiency of power source 100 Height, control strategy is simple, and 302 outgoing route of the first dynamotor is short, transmission efficiency, so as to improve the first electronic hair The drive efficiency of motor 302, can improve the dynamic property of vehicle.

The power drive system 1000 of vehicle has the second mixed dynamic drive pattern, and the power drive system of vehicle is in second During mixed dynamic drive pattern, 100 and first dynamotor 302 of power source works, variable-speed unit 200 and 100 power of power source It is of coupled connections, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the first dynamotor 302 It is connected with the first generator unit coupling part 301 by 304 power coupling of handover module, the power that power source 100 exports Pass sequentially through variable-speed unit 200, conversion equipment input unit 4020 and conversion equipment output section 4022 export give system dynamic output Portion 401, the power of the first dynamotor 302 output pass sequentially through handover module 304, the first generator unit coupling part 301st, conversion equipment input unit 4020 and conversion equipment output section 4022 are exported to system dynamic output section 401,100 He of power source Exported after the rotating speed coupling of first dynamotor 302 output to conversion equipment input unit 4020, and conversion equipment input unit Rotating speed of 4020 rotating speed higher than the input terminal of system dynamic output section 401.The power that so power source 100 exports passes through speed change Pass through the reduction of speed again of mode conversion device 402 after reduction of speed of unit 200 again, increase square so as to preferably play to slow down Effect, and then the handling capacity of vehicle can be improved.Moreover, the power output path of the first dynamotor 302 is short, Er Qiejing The reduction of speed of mode conversion device 402 is crossed, so as to improve the drive efficiency of the first dynamotor 302, vehicle can be improved Dynamic property.

The power drive system 1000 of vehicle has the 3rd mixed dynamic drive pattern, and the power drive system of vehicle is in the 3rd During mixed dynamic drive pattern, 100 and first dynamotor 302 of power source works, variable-speed unit 200 and 100 power of power source It is of coupled connections, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the first dynamotor 302 It is connected with variable-speed unit 200 by 304 power coupling of handover module, the power that power source 100 exports passes sequentially through variable-speed unit 200th, conversion equipment input unit 4020 and conversion equipment output section 4022 are exported to system dynamic output section 401, the first electronic hair The power that motor 302 exports passes sequentially through handover module 304, variable-speed unit 200, conversion equipment input unit 4020 and conversion equipment Output section 4022 is exported to be suitable for 100 and first dynamotor of power source to system dynamic output section 401, variable-speed unit 200 The power of 302 outputs is exported to conversion equipment input unit 4020, and the rotating speed and system dynamic of conversion equipment input unit 4020 The rotating speed of the input terminal of output section 401 is identical.The power that so power source 100 exports passes through a reduction of speed of variable-speed unit 200 Pass through the reduction of speed again of mode conversion device 402 again afterwards, increase the effect of square so as to preferably play to slow down, and then can improve The handling capacity of vehicle.And first dynamotor 302 output power rotating speed it is suitable, can play slow down increase square work With so as to improve the drive efficiency of the first dynamotor 302, the dynamic property of vehicle can be improved.

The power drive system 1000 of vehicle has the 4th mixed dynamic drive pattern, and the power drive system of vehicle is in the 4th During mixed dynamic drive pattern, 100 and first dynamotor 302 of power source works, variable-speed unit 200 and 100 power of power source It is of coupled connections, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the first dynamotor 302 It is connected with variable-speed unit 200 by 304 power coupling of handover module, the power that power source 100 exports passes sequentially through variable-speed unit 200th, conversion equipment input unit 4020 and conversion equipment output section 4022 are exported to system dynamic output section 401, the first electronic hair The power that motor 302 exports passes sequentially through handover module 304, variable-speed unit 200, conversion equipment input unit 4020 and conversion equipment Output section 4022 is exported to be suitable for 100 and first dynamotor of power source to system dynamic output section 401, variable-speed unit 200 The power of 302 outputs is exported to conversion equipment input unit 4020, and the rotating speed of conversion equipment input unit 4020 is moved higher than system The rotating speed of the input terminal of power output section 401.In this way, the power transmission efficiency of power source 100 is high, control strategy is simple, the first electricity The drive path length of dynamic generator 302, power transmission efficiency is low, can play deceleration and increase square effect, can improve the logical of vehicle Cross performance.

The power drive system 1000 of vehicle has the first driving power generation mode, and the power drive system 1000 of vehicle is in During the first driving power generation mode, power source 100 works, and variable-speed unit 200 is connected with 100 power coupling of power source, conversion equipment Input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the first dynamotor 302 and the first dynamotor Unit coupling part 301 is connected by 304 power coupling of handover module, and a part of power that power source 100 exports passes sequentially through change Fast unit 200, conversion equipment input unit 4020 and conversion equipment output section 4022 are exported to system dynamic output section 401, and are turned The rotating speed of changing device input unit 4020 is identical with the rotating speed of the input terminal of system dynamic output section 401, and power source 100 exports another A part of power pass sequentially through variable-speed unit 200, conversion equipment input unit 4020, the first generator unit coupling part 301, Handover module 304 is exported to generate electricity to the first dynamotor 302, the first dynamotor 302 of driving.Power can so be formed The form that source 100 generates electricity when driving, and the power output efficiency of power source 100 is high, and control strategy is simple, the first electronic hair Motor 302 can generate electricity.

The power drive system 1000 of vehicle has the second driving power generation mode, and the power drive system 1000 of vehicle is in During the second driving power generation mode, power source 100 works, and variable-speed unit 200 is connected with 100 power coupling of power source, conversion equipment Input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the first dynamotor 302 and the first dynamotor Unit coupling part 301 is connected by 304 power coupling of handover module, and a part of power that power source 100 exports passes sequentially through change Fast unit 200, conversion equipment input unit 4020 and conversion equipment output section 4022 are exported to system dynamic output section 401, and are turned The rotating speed of changing device input unit 4020 is higher than the rotating speed of the input terminal of system dynamic output section 401, and power source 100 exports another Partial power passes sequentially through variable-speed unit 200, conversion equipment input unit 4020, the first generator unit coupling part 301, cuts Mold changing block 304 is exported to generate electricity to the first dynamotor 302, the first dynamotor 302 of driving.Power source can so be formed 100 forms to generate electricity when driving, the power that power source 100 exports pass through mould again after a reduction of speed of variable-speed unit 200 The reduction of speed again of formula conversion equipment 402, increases the effect of square so as to preferably play to slow down, and then can improve passing through for vehicle Ability.First dynamotor 302 can generate electricity.

The power drive system 1000 of vehicle has the third line car power generation mode, and the power drive system 1000 of vehicle is in During the third line car power generation mode, power source 100 works, and variable-speed unit 200 is connected with 100 power coupling of power source, conversion equipment Input unit 4020 is connected with 4022 power coupling of conversion equipment output section, and the first dynamotor 302 passes through with variable-speed unit 200 304 power coupling of handover module connects, and a part of power that power source 100 exports passes sequentially through variable-speed unit 200, conversion equipment Input unit 4020 and conversion equipment output section 4022 are exported to system dynamic output section 401, and conversion equipment input unit 4020 Rotating speed is identical with the rotating speed of the input terminal of system dynamic output section 401, and another part power that power source 100 exports passes sequentially through Variable-speed unit 200, handover module 304 are exported to generate electricity to the first dynamotor 302, the first dynamotor 302 of driving.So The form that power source 100 generates electricity when driving can be formed, and the power output efficiency of power source 100 is high, control strategy letter Single, the first dynamotor 302 can generate electricity.

The power drive system 1000 of vehicle has fourth line car power generation mode, and the power drive system 1000 of vehicle is in During fourth line car power generation mode, power source 100 works, and variable-speed unit 200 is connected with 100 power coupling of power source, conversion equipment Input unit 4020 is connected with 4022 power coupling of conversion equipment output section, and the first dynamotor 302 passes through with variable-speed unit 200 304 power coupling of handover module connects, and a part of power that power source 100 exports passes sequentially through variable-speed unit 200, conversion equipment Input unit 4020 and conversion equipment output section 4022 are exported to system dynamic output section 401, and conversion equipment input unit 4020 Rotating speed is higher than the rotating speed of the input terminal of system dynamic output section 401, and another part power that power source 100 exports passes sequentially through change Fast unit 200, handover module 304 are exported to generate electricity to the first dynamotor 302, the first dynamotor 302 of driving.So may be used In the form of being generated electricity while forming power source 100 and driving, the power that power source 100 exports passes through the once drop of variable-speed unit 200 Pass through the reduction of speed again of mode conversion device 402 after speed again, increase the effect of square so as to preferably play to slow down, and then can carry The handling capacity of high vehicle.First dynamotor 302 can generate electricity.

The power drive system 1000 of vehicle has the first Brake Energy take-back model, at the power drive system 1000 of vehicle When the first Brake Energy take-back model, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the One dynamotor 302 is connected with the first generator unit coupling part 301 by 304 power coupling of handover module, is come from The power of the wheel of vehicle passes sequentially through system dynamic output section 401, conversion equipment output section 4022, conversion equipment input unit 4020th, the first generator unit coupling part 301, handover module 304 drive the first dynamotor 302 to generate electricity, and change The rotating speed of device input unit 4020 is identical with the rotating speed of the input terminal of system dynamic output section 401.At this time, the first dynamotor 302 can recycle the energy from wheel, and generating efficiency is high, and can reduce the waste of energy, can improve the row of vehicle Sail mileage.

The power drive system 1000 of vehicle has the second Brake Energy take-back model, at the power drive system 1000 of vehicle When the second Brake Energy take-back model, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the One dynamotor 302 is connected with the first generator unit coupling part 301 by 304 power coupling of handover module, is come from The power of the wheel of vehicle passes sequentially through system dynamic output section 401, conversion equipment output section 4022, conversion equipment input unit 4020th, the first generator unit coupling part 301, handover module 304 drive the first dynamotor 302 to generate electricity, and change Rotating speed of the rotating speed of device input unit 4020 higher than the input terminal of system dynamic output section 401.At this time, the first dynamotor 302 can recycle the energy from wheel, and generating efficiency is high, and can reduce the waste of energy, can improve the row of vehicle Sail mileage.

The power drive system 1000 of vehicle has a 3rd Brake Energy take-back model, at the power drive system 1000 of vehicle When the 3rd Brake Energy take-back model, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the One dynamotor 302 is connected with variable-speed unit 200 by 304 power coupling of handover module, the power of the wheel from vehicle Pass sequentially through system dynamic output section 401, conversion equipment output section 4022, conversion equipment input unit 4020, variable-speed unit 200, Handover module 304 drives the first dynamotor 302 to generate electricity, and the rotating speed of conversion equipment input unit 4020 is exported with system dynamic The rotating speed of the input terminal in portion 401 is identical.At this time, the first dynamotor 302 can recycle the energy from wheel, generating efficiency Height, and the waste of energy can be reduced, the distance travelled of vehicle can be improved.

The power drive system 1000 of vehicle has a 4th Brake Energy take-back model, at the power drive system 1000 of vehicle When the 4th Brake Energy take-back model, conversion equipment input unit 4020 is connected with 4022 power coupling of conversion equipment output section, the One dynamotor 302 is connected with variable-speed unit 200 by 304 power coupling of handover module, the power of the wheel from vehicle Pass sequentially through system dynamic output section 401, conversion equipment output section 4022, conversion equipment input unit 4020, variable-speed unit 200, Handover module 304 drives the first dynamotor 302 to generate electricity, and the rotating speed of conversion equipment input unit 4020 is defeated higher than system dynamic Go out the rotating speed of the input terminal in portion 401.At this time, the first dynamotor 302 can recycle the energy from wheel, generating efficiency Height, and the waste of energy can be reduced, the distance travelled of vehicle can be improved.

The power that above-mentioned power drive system 1000 is transmitted is to be exported by system dynamic output section 401 to vehicle Two wheels, but power drive system 1000 is not limited to this, and power drive system 1000 can also include electric drive trains System 700, power drive system 700 can be used for two other wheel (such as trailing wheel) for driving vehicle, so as to realize vehicle 4 wheel driven.

A variety of arrangement forms according to power drive system 700 are described in detail below.

As shown in figure 15, power drive system 700 can include drive system input unit and drive system output section, drivetrain The power output that system output section is suitable for self actuating system input unit in future gives two other wheel, such as trailing wheel.So pass through increasing Power up drive system 700, can increase the drive pattern of vehicle, for example, drive pattern can be further divided into forerunner's pattern, Rear-guard pattern and 4 wheel driven pattern, so that vehicle is more applicable for different road conditions, can improve the dynamic property of vehicle.

For example, as shown in figure 15, power drive system 700 further includes power drive system system dynamic output section 710, drivetrain The power that system output section is suitable for self actuating system input unit in future is exported to another by power drive system system dynamic output section 710 Outer two wheels.Power drive system system dynamic output section 710 can be divided in order to which drive system output section to be transmitted to the power come Two wheels of dispensing both sides, so as to smoothly drive vehicle.

Specifically, drive system input unit can be driving dynamotor 720, and driving dynamotor 720 can be Trailing wheel dynamotor, trailing wheel dynamotor can drive two trailing wheels by reducing gear, and drive system output section can be with For gear reduction unit 730 (i.e. reducing gear).Thus, when driving dynamotor 720 to work, dynamotor 720 is driven The power of generation passes to power drive system system dynamic output section after can passing through the deceleration increment of gear reduction unit 730 710, power drive system system dynamic output section 710 can distribute to both sides in order to which drive system output section is transmitted the power come Two wheels, so as to smoothly drive vehicle.

And for example, as shown in figure 16, drive system input unit includes two driving dynamotor 720, drive system output Portion includes two sub- output sections of drive system, and each sub- output section of drive system, which is suitable for coming from, accordingly drives dynamotor 720 power output gives a wheel in two other wheel accordingly.That is, each wheel is corresponding with a driving Dynamotor 720 and the sub- output section of drive system, so can be omitted power drive system system dynamic output section 710, and Two driving dynamotor 720 can adjust the rotating speed of itself to realize the differential between two wheels, so that Power drive system 1000 is simple in structure and reliable.

As shown in figure 16, two other above-mentioned wheel selectivity is synchronous.For example, it can be set on one of semiaxis 2000 Semiaxis synchronizer is equipped with to be suitable for being selectively engaged another semiaxis 2000.It can so realize the in the same direction synchronized of two wheels Rotate, can also realize the differential motion of two wheels, thereby may be ensured that the cruising characteristic of vehicle.

As indicated at 17, two selectivity of driving dynamotor 720 are synchronous.For example, can be with a motor output shaft 721 721 synchronizer of motor output shaft is provided with to be selectively engaged another motor output shaft 721, can so realize two cars The synchronized rotation in the same direction of wheel, can also realize the differential motion of two wheels, thereby may be ensured that the cruising characteristic of vehicle.

As shown in Figure 18 and Figure 19, the sub- output section selectivity of two drive systems is synchronous.That is, two drive systems It is defeated for another synchronous drive system that sub- output section synchronizer can be provided with an output shaft in sub- output section Go out portion, can so realize the synchronized rotation in the same direction of two wheels, can also realize the differential motion of two wheels, so as to Ensure the cruising characteristic of vehicle.

As shown in Figure 15-Figure 19, the sub- output section of drive system can include secondary gear reducer, by double reduction The power of driving dynamotor 720 can pass to wheel to drive vehicle wheel rotation.

Alternatively, as shown in figure 20, the sub- output section of drive system can include two shift transmissions.Drive dynamotor 720 One of gear is selectively engaged, by setting two shift transmissions, thus it is possible to vary driving dynamotor 720 export to The rotating speed of wheel, so as to enrich the drive pattern of power drive system 1000, can improve the economy and power of vehicle Property.

Specifically, driving dynamotor 720 can include motor output shaft 721, secondary gear reducer 730 or two Shift transmission may each comprise the sub- output section input shaft of drive system, the sub- output section input shaft of drive system and motor output shaft 721 are fixedly linked and are coaxially disposed.So driving dynamotor 720 can be imparted power to by motor output shaft 721 The sub- output section input shaft of drive system, then imparts power to wheel to drive vehicle to transport by the sub- output section of drive system It is dynamic.

For another example, power drive system 700 includes two wheel motors 720 (driving dynamotor), each wheel motor One wheel of correspondence in two other wheel is directly driven, two other wheel selectivity is synchronous.Can on one semiaxis 2000 Another semiaxis 2000 is selectively engaged to be provided with semiaxis synchronizer, such wheel motor can drive corresponding respectively Vehicle wheel rotation, and by disconnecting semiaxis synchronizer, it is possible to achieve the differential motion of two wheels, thereby may be ensured that vehicle Cruising characteristic.

Multiple arrangement forms of mode conversion device 402 are described in detail in conjunction with multiple attached drawings below.

First embodiment according to the present invention, as shown in fig. 7, mode conversion device 402 can also include the first converter section 4021a and the second converter section 4021b, the selectivity of conversion equipment output section 4022 and the first converter section 4021a and the second converter section An engagement in 4021b, conversion equipment input unit 4020 are fixedly linked with the first converter section 4021a, conversion equipment output section 4022 engage with the second converter section 4021b, so that suitable for making the rotating speed of conversion equipment output section 4022 pass sequentially through the first conversion Portion 4021a and the second converter section 4021b exports the input terminal to system dynamic output section 401 after reducing.

So engaged in conversion equipment output section 4022 with the first converter section 4021a, so that suitable for inputting conversion equipment The rotating speed that portion 4020 exports is identical with the input terminal rotating speed of system dynamic output section 401.

Therefrom, it may be appreciated that the power that 100 and/or first generator unit 300 of power source produces is transferred to After conversion equipment input unit 4020, conversion equipment input unit 4020 can pass to the first converter section 4021a and the second converter section 4021b, conversion equipment output section 4022 by Rational choice the first converter section 4021a and the second converter section 4021b, so as to The rotating speed to wheel is transmitted in control, and then can control the speed of vehicle so that and the speed of vehicle is more suitable for current vehicle condition, The cruising characteristic and dynamic property of vehicle can be improved.

For example, disconnected and in conversion equipment input unit 4020 and first converter section 4021a and the second converter section 4021b When one dynamotor 302 is connected with variable-speed unit 200 by 304 power coupling of handover module, the power of the output of power source 100 The first dynamotor 302 is passed to after variable-speed unit 200, handover module 304 to drive the first electronic hair suitable for passing sequentially through Motor 302 generates electricity.

And for example, disconnected and in conversion equipment input unit 4020 and first converter section 4021a and the second converter section 4021b When one dynamotor 302 is connected with the first generator unit coupling part 301 by 304 power coupling of handover module, move The power that power source 100 exports is suitable for passing sequentially through variable-speed unit 200, conversion equipment input unit 4020, the first dynamotor list The first dynamotor 302 is passed to after first coupling part 301, handover module 304 to drive the first dynamotor 302 to generate electricity.

It is understood that when the first converter section 4021a and the second converter section 4021b with conversion equipment output section 4022 During disconnection, power source 100 can pass through converting means without 401 passing power of normal direction system dynamic output section, the power of power source 100 Put input unit 4020 and pass to the first generator unit 300, the first dynamoelectric and power generation in the first generator unit 300 Machine 302 can be used as generator to generate electricity.It can so realize the power generation in parking pattern of vehicle, and then can be to avoid The waste of the energy, can save the energy, can improve the dynamic property and economy of vehicle.

As shown in fig. 7, in mode conversion device 402, conversion equipment input unit 4020 is main retarder driven gearwheel Z ', First converter section 4021a is the second conversion gear ZZ2 for the first conversion gear ZZ1, the second converter section 4021b, and still, pattern turns Changing device 402 further includes：Conversion equipment axis VII, main reducing gear driven gear Z ', the first conversion gear ZZ1 and the second conversion gear The equal empty sets of ZZ2 are fixed with the 3rd conversion gear ZZ3 and the 4th conversion gear on the semiaxis 2000 of vehicle on conversion equipment axis VII ZZ4, the first conversion gear ZZ1 are engaged with the 3rd conversion gear ZZ3, and the second conversion gear ZZ2 and the 4th conversion gear ZZ4 is nibbled Close.So form primary speed-down between the first conversion gear ZZ1 and the 3rd conversion gear ZZ3, in the second conversion gear ZZ2 and Double reduction is formed between 4th conversion gear ZZ4, so that the rotating speed of the first conversion gear ZZ1 is higher than the second conversion The rotating speed of gear ZZ2.

Specifically, as shown in fig. 7, main reducing gear driven gear Z ' can form duplex-gear knot with the first conversion gear ZZ1 Structure, in other words, a gear in duplex toothing forms main reducing gear driven gear Z ' and another gear forms first turn Gear changing ZZ1, so by setting duplex toothing, can make it that mode conversion device 402 is simple in structure, reliable operation, and And can make it that power drive system 1000 is simple in structure, reliable operation.

Further, as shown in fig. 7, mode conversion device 402 can also include conversion equipment connector S, conversion equipment Output section 4022 is engaged by conversion equipment connector S selectivity with the first converter section 4021a or the second converter section 4021b.This Place, it is to be understood that conversion equipment output section 4022 can be selectively engaged and disconnect the first converter section 4021a, and Conversion equipment output section 4022 can be selectively engaged and disconnect the second converter section 4021b.Pass through switch transition means for engaging The state and engaged target of device S, thus it is possible to vary the output speed of conversion equipment output section 4022 is passed to, so as to change car The rotating speed of wheel, and then the drive pattern of vehicle can be enriched, the economy and dynamic property of vehicle can be improved.Wherein, converting means It can be conversion equipment synchronizer to put connector S, which is arranged on the conversions of the first conversion gear ZZ1 and second Between gear ZZ2, so as to reduce the quantity of synchronizer, it can make it that mode conversion device 402 is simple in structure, cost is low.

As shown in fig. 7, conversion equipment output section 4022 can be axle sleeve, one end and the system dynamic output section 401 of axle sleeve Input terminal be fixedly linked, conversion equipment connector S is arranged on the other end of axle sleeve.It can so ensure conversion equipment output section Synchronization dependability between 4022 and corresponding first conversion gear ZZ1 and the second conversion gear ZZ2.And pass through reasonable Arrangement Radially be arranged arrangement, can effective save mode conversion equipment 402 space so that 402 knot of mode conversion device Structure is compact, small, and the space for taking power drive system 1000 is small.

Further, axle sleeve can be set on the semiaxis 2000 of vehicle, and the second conversion gear ZZ2 can be with empty set in axle sleeve On.It can so make it that the position of the second conversion gear ZZ2 is reasonable, and can be with the knot of Assured Mode conversion equipment 402 Structure reliability.

According to the second embodiment of the present invention, as shown in figure 8, mode conversion device 402 can also include the first converter section 4021a and the second converter section 4021b, conversion equipment output section 4022 are connected with the input terminal of system dynamic output section 401, conversion At least one power that device input unit 4020 is suitable in ultromotivity in future source 100 and the first generator unit 300 is defeated Going out, the selectivity of conversion equipment input unit 4020 is engaged with one in the first converter section 4021a and the second converter section 4021b, the One converter section 4021a and the second converter section 4021b coordinates with conversion equipment output section 4022 to be driven.That is, in power During transmission, conversion equipment input unit 4020 can be by the first converter section 4021a or the second converter section 4021b to conversion equipment 4022 passing power of output section.

Conversion equipment input unit 4020 is adapted to engage with the first converter section 4021a, so that conversion equipment input unit 4020 turns Speed is identical with the rotating speed of the input terminal of system dynamic output section 401, and conversion equipment input unit 4020 is adapted to engage with the second converter section 4021b, so that the rotating speed of conversion equipment input unit 4020 is exported to system dynamic output section 401 after reducing.

Specifically, as shown in figure 8, conversion equipment input unit 4020 is main retarder driven gearwheel Z ', mode conversion device 402 can also include：Conversion equipment axis VII, main reducing gear driven gear Z ' fixations are located on conversion equipment axis VII, conversion equipment Direct gear driving gear Da and low gear driving gear La are set with axis VII, conversion equipment axis VII and the semiaxis 2000 of vehicle are flat OK.

Wherein, direct gear driving gear Da can be the first converter section 4021a, and low gear driving gear La can be second turn Change portion 4021b.Conversion equipment output section 4022 can include direct gear driven gear Db and low gear driven gear Lb, direct gear from Moving gear Db is engaged with direct gear driving gear Da, and low gear driven gear Lb is engaged with low gear driving gear La, and direct gear is driven The input terminal of gear D b and low gear driven gear Lb with system dynamic output section 401 is fixedly linked.It can so cause power Transmit reliable, transmission efficiency.

Moreover, conversion equipment input unit 4020 is suitable for disconnecting with the first converter section 4021a and the second converter section 4021b, So that power source 100 is suitable for passing sequentially through variable-speed unit 200, the first dynamotor list of driving of conversion equipment input unit 4020 Member 300 generates electricity.

Mode conversion device 402 can also include conversion equipment connector S, and conversion equipment output section 4022 passes through converting means Connector S is put selectively to engage with the first converter section 4021a or the second converter section 4021b.Herein, it is to be understood that conversion Device output section 4022 can be selectively engaged and disconnect the first converter section 4021a, and conversion equipment output section 4022 can To be selectively engaged and disconnect the second converter section 4021b.By the state and engaged target of switch transition means for engaging device S, The output speed for passing to conversion equipment output section 4022 can be changed, so as to change the rotating speed of wheel, and then can be rich The drive pattern of rich vehicle, can improve the economy and dynamic property of vehicle.

Wherein, conversion equipment connector S can be conversion equipment synchronizer.Alternatively, conversion equipment synchronizer can be consolidated It is scheduled on conversion equipment axis VII, it is preferable that conversion equipment synchronizer can be located at direct gear driving gear Da and low gear driving tooth Between taking turns La, the quantity of synchronizer can be so reduced, can make it that mode conversion device 402 is simple in structure, cost is low.

It should be noted that the content of above-mentioned power drive system 1000 can be tied mutually in the case where not conflicting mutually Close or replace, so as to form new embodiment, new embodiment equally in the protection domain of the application, with reference to replacement side Formula has a variety of, names several examples to explain.

For example, the part of the power drive system 1000 shown in Fig. 1-Fig. 6 can be used for drive vehicle front-wheel, Figure 15- The part of power drive system 1000 shown in Figure 20 can be used for driving trailing wheel, any one in Fig. 1-Fig. 6 can be with figure Any one in 15- Figure 20 forms new power drive system 1000.

And for example, in order to improve power generation in parking efficiency, the power drive system 1000 shown in Fig. 1 can combine one second electricity For dynamic generator 600 to form new power drive system 1000, the second dynamotor 600 can be in parking operating mode in vehicle Shi Shixian power generation in parking.

For another example, the arrangement form of the second dynamotor 600 has a variety of, as shown in Figure 22 and Figure 23, the second dynamoelectric and power generation Machine 600 can coaxially be connected with power source 100, and for example, as shown in figures 24 and 25, the second dynamotor 600 can with it is double The input terminal of clutch is connected, and the arrangement form of the second dynamotor of above two 600 can be replaced mutually.

For another example, the mode conversion device 402 of the power drive system 1000 shown in Fig. 7-Fig. 8 is different, and above-mentioned appoints Two mode conversion devices 402 of meaning can be replaced mutually.

Vehicle according to embodiments of the present invention, includes the power drive system 1000 of above-described embodiment.

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 ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or Position relationship, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must There must be specific orientation, with specific 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 at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three It is a 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 or can communicate each other；It can be directly connected, can also be indirectly connected by intermediary, can be with It is the interaction relationship of connection inside two elements or two elements, unless otherwise restricted clearly.For this area For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.

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 Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature Close and combine.

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 of vehicle, it is characterised in that including：

Power source；

Variable-speed unit, is connected to the being suitably selected for property of variable-speed unit with the power source power coupling；

First generator unit, first generator unit include the first dynamotor and the first dynamoelectric and power generation Machine unit coupling part；

Handover module, wherein first dynamotor connects the speed change by the handover module selectivity power coupling Unit or the first generator unit coupling part；

System dynamic output section；

Mode conversion device, the mode conversion device include conversion equipment input unit and conversion equipment output section, the conversion Device input unit is connected with the variable-speed unit and the first generator unit coupling part power coupling respectively, and is suitable for At least one power output in the power source and first generator unit, the conversion equipment is defeated The input terminal for going out portion with the system dynamic output section is connected, the conversion equipment input unit and conversion equipment output section choosing Selecting property power coupling connects；

When the conversion equipment input unit is connected with conversion equipment output section power coupling, the conversion equipment input unit Rotating speed is greater than or equal to the rotating speed of the conversion equipment output section.
2. the power drive system of vehicle according to claim 1, it is characterised in that the conversion equipment input unit and institute State the disconnection of conversion equipment output section and first dynamotor passes through the handover module power coupling with the variable-speed unit Connection is closed, the power of the power source output is suitable for passing sequentially through the variable-speed unit, handover module driving described first Dynamotor generates electricity.
3. the power drive system of vehicle according to claim 1, it is characterised in that the conversion equipment input unit and institute State the disconnection of conversion equipment output section and first dynamotor passes through institute with the first generator unit coupling part The connection of handover module power coupling is stated, the power of the power source output is suitable for passing sequentially through the variable-speed unit, the conversion Device input unit, the first generator unit coupling part, the handover module drive the first dynamotor hair Electricity.
4. the power drive system of vehicle according to claim 1, it is characterised in that the mode conversion device further includes First converter section and the second converter section, the conversion equipment output section is selectively and in first converter section and the second converter section An engagement, the conversion equipment input unit is fixedly linked with first converter section.
5. the power drive system of vehicle according to claim 4, it is characterised in that

The conversion equipment output section is adapted to engage with the first converter section, so that the rotating speed of the conversion equipment input unit and the system The rotating speed of the input terminal in power output of uniting portion is identical；

The conversion equipment output section is adapted to engage with the second converter section, so that the rotating speed of the conversion equipment input unit is defeated after reducing Go out to the system dynamic output section.
6. the dynamical system of vehicle according to claim 5, it is characterised in that the mode conversion device includes：

Main reducing gear driven gear, the main reducing gear driven gear are the conversion equipment input unit；

First conversion gear and the second conversion gear, the main reducing gear driven gear, first conversion gear and described The equal empty set of two conversion gears is on the semiaxis of the vehicle；

Conversion equipment axis, the 3rd conversion gear and the 4th conversion gear, first conversion are fixed with the conversion equipment axis Gear is engaged with the 3rd conversion gear, and second conversion gear is engaged with the 4th conversion gear；

First conversion gear is first converter section, and second conversion gear is second converter section.
7. the power drive system of vehicle according to claim 5, it is characterised in that the conversion equipment output section is suitable for Disconnected with first converter section and the second converter section, so that the power source is suitable for by the variable-speed unit, described Handover module drives first generator unit power generation, or make the power source be suitable for by the variable-speed unit, The conversion equipment input unit, the first generator unit coupling part, handover module driving described first are electronic Generator unit generates electricity.
8. the power drive system of vehicle according to claim 1, it is characterised in that the mode conversion device further includes First converter section and the second converter section, the conversion equipment input unit is selectively and in first converter section and the second converter section One engagement, first converter section and the second converter section with the conversion equipment output section coordinate be driven.
9. the power drive system of vehicle according to claim 8, it is characterised in that

The conversion equipment input unit is adapted to engage with the first converter section, so that the rotating speed of the conversion equipment input unit and the system The rotating speed of the input terminal in power output of uniting portion is identical；

Conversion equipment input unit is adapted to engage with the second converter section so that the conversion equipment input unit rotating speed reduce after export to The input terminal of the system dynamic output section.
10. the dynamical system of vehicle according to claim 9, it is characterised in that

The mode conversion device includes：

Main reducing gear driven gear, the main reducing gear driven gear are the conversion equipment input unit；

Conversion equipment axis, the main reducing gear driven gear is fixed and is located on the conversion equipment axis, on the conversion equipment axis Direct gear driving gear and low gear driving gear are set with, the conversion equipment axis is parallel with the semiaxis of the vehicle；

The direct gear driving gear is first converter section, and the low gear driving gear is second converter section；

The conversion equipment output section includes direct gear driven gear and low gear driven gear, the direct gear driven gear and institute The engagement of direct gear driving gear is stated, the low gear driven gear is engaged with the low gear driving gear, the direct gear driven tooth Wheel and input terminal of the low gear driven gear with the system dynamic output section are fixedly linked.
11. the power drive system of vehicle according to claim 8, it is characterised in that the conversion equipment input unit is fitted Disconnected in first converter section and the second converter section, so that the power source is suitable for by the variable-speed unit, institute State handover module and drive the first generator unit power generation, or the power source is suitable for by the speed change list First, described conversion equipment input unit, the first generator unit coupling part, handover module driving first electricity Dynamic generator unit power generation.
12. the power drive system of the vehicle according to any one of claim 6,10, it is characterised in that the speed change list Member includes variable-speed unit output section, the variable-speed unit output section and the first generator unit coupling part it is equal based on subtract Fast device driving gear, the main reducing gear driving gear are engaged with the main reducing gear driven gear.
13. the dynamical system of vehicle according to claim 1, it is characterised in that

The handover module includes：

First handover module axis, is fixed with power generation in parking driving gear, the power generation in parking on the first handover module axis Driving gear coordinates with the variable-speed unit to be driven；

Second handover module axis, power generation in parking gear driven gear, the power generation in parking are set with the second handover module axis Gear driven gear is engaged with power generation in parking gear driving gear, the second handover module axis and first dynamotor Coordinate transmission, the second handover module axis selectivity and power generation in parking gear driven gear or first dynamotor Unit coupling part engages.
14. the dynamical system of vehicle according to claim 1, it is characterised in that the handover module includes：

First handover module axis, is fixed among power generation in parking driving gear and power generation in parking on the first handover module axis Gear, the power generation in parking driving gear coordinates with the variable-speed unit to be driven；

Second handover module axis, power generation in parking gear driven gear, the power generation in parking are set with the second handover module axis Gear driven gear is engaged with the power generation in parking idler gear, and the second handover module axis is matched somebody with somebody with first dynamotor Close transmission, the second handover module axis selectivity and power generation in parking gear driven gear or the first dynamotor list First coupling part engagement.
15. the power drive system of vehicle according to any one of claim 1-3, it is characterised in that the speed change list Member includes：

Variable-speed dynamic input unit, the variable-speed dynamic input unit are selectively engageable with the power source, described dynamic to transmit Power caused by power source；

Variable-speed dynamic output section；

Variable-speed unit output section, wherein the variable-speed dynamic output section is configured and adapted in the variable-speed dynamic input unit Power it is by the synchronization of variable-speed unit synchronizer that the power output to variable-speed unit output section, the variable-speed unit is defeated Go out portion to be connected with the conversion equipment input unit power coupling, first dynamotor passes through handover module selectivity Power coupling connects the variable-speed dynamic output section.
16. the power drive system of vehicle according to claim 15, it is characterised in that the variable-speed dynamic input unit bag At least one input shaft is included, each input shaft is selectively engageable with the power source, on each input shaft It is provided with least one driving gear；

The variable-speed dynamic output section includes：At least one output shaft, is each provided with least one driven on the output shaft Gear, the driven gear are engaged with the accordingly driving gear, and the variable-speed unit output section is at least one main deceleration Device driving gear, at least one main reducing gear driving gear are fixed at least one output shaft correspondingly.
17. the power drive system of vehicle according to claim 16, it is characterised in that the input shaft for it is multiple and according to It is secondary it is coaxial nested set, when the power source is to input shaft transmission power, the power source optionally with it is multiple An engagement in the input shaft.
18. the power drive system of vehicle according to any one of claim 1-3, it is characterised in that the system is moved Power output section is differential mechanism, and the differential mechanism includes two axle shaft gears, two of two axle shaft gears and the vehicle Semiaxis corresponds；

The power of the vehicle further includes：Power on-off system, engages two institutes to the being suitably selected for property of power on-off system State at least one semiaxis with the accordingly vehicle in axle shaft gear.
19. the power drive system of vehicle according to claim 18, it is characterised in that the power on-off system be from Clutch or synchronizer.
20. the power drive system of vehicle according to claim 1, it is characterised in that the second dynamotor is further included, Second dynamotor between the power source and variable-speed unit, one end of second dynamotor directly with Power source power coupling connection, and the other end of second dynamotor optionally with the variable-speed unit power It is of coupled connections.
21. the power drive system of the vehicle according to any one of right wants 1-3, it is characterised in that further include the second electricity Dynamic generator, second dynamotor between the power source and variable-speed unit, second dynamotor One end is optionally connected with the power source power coupling, the other end of second dynamotor optionally with it is described Variable-speed unit power coupling connects.
22. the power drive system of vehicle according to claim 1, it is characterised in that fit the system dynamic output section In two wheels for outputting power to the vehicle；

The power drive system of the vehicle further includes power drive system, and the power drive system is used to drive the vehicle Two other wheel.
23. the power drive system of vehicle according to claim 22, it is characterised in that the power drive system includes driving Dynamic system input and drive system output section, the drive system output section are suitable for from the drive system input unit Power output gives two other described wheel.
24. the power drive system of vehicle according to claim 23, it is characterised in that the power drive system further includes Power drive system system dynamic output section, the drive system output section are suitable for the power from the drive system input unit Exported by the power drive system system dynamic output section to two other described wheel.
25. the power drive system of vehicle according to claim 23, it is characterised in that the drive system input unit is Dynamotor is driven, the drive system output section is gear reduction unit.
26. the power drive system of vehicle according to claim 25, it is characterised in that the drive system input unit bag Include two driving dynamotor；The drive system output section includes two sub- output sections of drive system, each driving The sub- output section of system is suitable for the power output from the accordingly driving dynamotor in two other described wheel A wheel accordingly.
27. the power drive system of vehicle according to claim 26, it is characterised in that two other wheel selection Property synchronous either described two driving dynamotor are selectively synchronous or the sub- output section selectivity of described two drive systems It is synchronous.
28. the power drive system of vehicle according to claim 22, it is characterised in that the power drive system includes two A wheel motor, each wheel motor directly drive one wheel of correspondence in two other described wheel, it is described in addition Two wheel selectivity are synchronous.
29. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the first power source drive pattern, when the power drive system of the vehicle is in the first power source drive pattern, First dynamotor does not work, and the variable-speed unit is connected with the power source power coupling, and the conversion equipment is defeated Enter portion to connect with conversion equipment output section power coupling, the power of the power source output passes sequentially through variable-speed unit, institute State conversion equipment input unit and the conversion equipment output section is exported to the system dynamic output section, and the conversion equipment is defeated The rotating speed for entering portion is identical with the rotating speed of the input terminal of the system dynamic output section.
30. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the second power source drive pattern, when the power drive system of the vehicle is in the second power source drive pattern, First dynamotor does not work, and the variable-speed unit is connected with the power source power coupling, and the conversion equipment is defeated Enter portion to connect with conversion equipment output section power coupling, the power of the power source output passes sequentially through variable-speed unit, institute State conversion equipment input unit and the conversion equipment output section exports input terminal to the system dynamic output section, and described turn Rotating speed of the rotating speed of changing device input unit higher than the input terminal of the system dynamic output section.
31. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the first pure electric vehicle drive pattern, and the power drive system of the vehicle is in the first pure electric vehicle drive pattern, institute State power source not work, the conversion equipment input unit is connected with conversion equipment output section power coupling, first electricity Dynamic generator is connected with the first generator unit coupling part by the handover module power coupling, first electricity The power of dynamic generator output passes sequentially through the handover module, the first generator unit coupling part, the conversion Device input unit and the conversion equipment output section are exported to the system dynamic output section, and the conversion equipment input unit Rotating speed is identical with the rotating speed of the input terminal of the system dynamic output section.
32. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the second pure electric vehicle drive pattern, and the power drive system of the vehicle is in the second pure electric vehicle drive pattern, institute State power source not work, the conversion equipment input unit is connected with conversion equipment output section power coupling, first electricity Dynamic generator is connected with the first generator unit coupling part by the handover module power coupling, first electricity The power of dynamic generator output passes sequentially through the handover module, the first generator unit coupling part, the conversion Device input unit and the conversion equipment output section export the input terminal to the system dynamic output section, and the conversion equipment Rotating speed of the rotating speed of input unit higher than the input terminal of the system dynamic output section.
33. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the 3rd pure electric vehicle drive pattern, and the power drive system of the vehicle is in the 3rd pure electric vehicle drive pattern, institute State power source not work, the conversion equipment input unit is connected with conversion equipment output section power coupling, first electricity Dynamic generator is connected with the variable-speed unit by the handover module power coupling, and the first dynamotor output is moved It is defeated that power passes sequentially through the handover module, the variable-speed unit, the conversion equipment input unit and the conversion equipment output section Go out to the system dynamic output section, and the rotating speed of the conversion equipment input unit and the input terminal of the system dynamic output section Rotating speed it is identical.
34. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the 4th pure electric vehicle drive pattern, and the power drive system of the vehicle is in the 4th pure electric vehicle drive pattern, institute State power source not work, the conversion equipment input unit is connected with conversion equipment output section power coupling, first electricity Dynamic generator is connected with the variable-speed unit by the handover module power coupling, and the first dynamotor output is moved It is defeated that power passes sequentially through the handover module, the variable-speed unit, the conversion equipment input unit and the conversion equipment output section Go out the input terminal to the system dynamic output section, and the rotating speed of the conversion equipment input unit is exported higher than the system dynamic The rotating speed of the input terminal in portion.
35. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System have first it is counter drag start-up mode, the power drive system of the vehicle in described first it is counter drag start-up mode, described the One dynamotor is connected with the first generator unit coupling part by the handover module power coupling, and described The power of one dynamotor output passes sequentially through the handover module, the first generator unit coupling part, described Conversion equipment input unit, the variable-speed unit are exported drives the power source to start to the power source.
36. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System have second it is counter drag start-up mode, the power drive system of the vehicle in described second it is counter drag start-up mode, described the One dynamotor is connected with the variable-speed unit by the handover module power coupling, the first dynamotor output Power pass sequentially through the handover module, the variable-speed unit exports and drives the power source to start to the power source.
37. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the first mixed dynamic drive pattern, when the power drive system of the vehicle is in the first mixed dynamic drive pattern, the power Source and first dynamotor work, and the variable-speed unit is connected with the power source power coupling, the converting means Put input unit to connect with conversion equipment output section power coupling, first dynamotor and first dynamoelectric and power generation Machine unit coupling part is connected by the handover module power coupling, and the power of the power source output passes sequentially through speed change list First, described conversion equipment input unit and the conversion equipment output section are exported to the system dynamic output section, first electricity The power of dynamic generator output passes sequentially through the handover module, the first generator unit coupling part, the conversion Device input unit and the conversion equipment output section are exported to the system dynamic output section, the power source and first electricity Exported after the power coupling of dynamic generator output to the conversion equipment input unit, and the rotating speed of the conversion equipment input unit with The rotating speed of the input terminal of the system dynamic output section is identical.
38. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the second mixed dynamic drive pattern, when the power drive system of the vehicle is in the second mixed dynamic drive pattern, the power Source and first dynamotor work, and the variable-speed unit is connected with the power source power coupling, the converting means Put input unit to connect with conversion equipment output section power coupling, first dynamotor and first dynamoelectric and power generation Machine unit coupling part is connected by the handover module power coupling, and the power of the power source output passes sequentially through speed change list First, described conversion equipment input unit and the conversion equipment output section are exported to the system dynamic output section, first electricity The power of dynamic generator output passes sequentially through the handover module, the first generator unit coupling part, the conversion Device input unit and the conversion equipment output section are exported to the system dynamic output section, the power source and first electricity Exported after the rotating speed coupling of dynamic generator output to the conversion equipment input unit, and the rotating speed of the conversion equipment input unit is high In the rotating speed of the input terminal of the system dynamic output section.
39. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the 3rd mixed dynamic drive pattern, when the power drive system of the vehicle is in the 3rd mixed dynamic drive pattern, the power Source and first dynamotor work, and the variable-speed unit is connected with the power source power coupling, the converting means Put input unit to connect with conversion equipment output section power coupling, first dynamotor passes through with the variable-speed unit The handover module power coupling connection, it is defeated that the power that the power source exports passes sequentially through variable-speed unit, the conversion equipment Enter portion and the conversion equipment output section to export to the system dynamic output section, the power of the first dynamotor output Pass sequentially through the handover module, the variable-speed unit, the conversion equipment input unit and conversion equipment output section output To the system dynamic output section, the variable-speed unit is suitable for exporting the power source and first dynamotor dynamic Power is exported to the conversion equipment input unit, and the rotating speed of the conversion equipment input unit and the system dynamic output section The rotating speed of input terminal is identical.
40. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the 4th mixed dynamic drive pattern, when the power drive system of the vehicle is in the 4th mixed dynamic drive pattern, the power Source and first dynamotor work, and the variable-speed unit is connected with the power source power coupling, the converting means Put input unit to connect with conversion equipment output section power coupling, first dynamotor passes through with the variable-speed unit The handover module power coupling connection, it is defeated that the power that the power source exports passes sequentially through variable-speed unit, the conversion equipment Enter portion and the conversion equipment output section to export to the system dynamic output section, the power of the first dynamotor output Pass sequentially through the handover module, the variable-speed unit, the conversion equipment input unit and conversion equipment output section output To the system dynamic output section, the variable-speed unit is suitable for exporting the power source and first dynamotor dynamic Power is exported to the conversion equipment input unit, and the rotating speed of the conversion equipment input unit is higher than the system dynamic output section Input terminal rotating speed.
41. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the first driving power generation mode, described when the power drive system of the vehicle is in the described first driving power generation mode Power source works, and the variable-speed unit is connected with the power source power coupling, the conversion equipment input unit and the conversion The power coupling connection of device output section,

First dynamotor passes through the handover module power coupling with the first generator unit coupling part Connection,

A part of power of power source output passes sequentially through the variable-speed unit, the conversion equipment input unit and described turn Changing device output section is exported to the system dynamic output section, and the rotating speed of the conversion equipment input unit and the system dynamic The rotating speed of the input terminal of output section is identical, and another part power of the power source output passes sequentially through the variable-speed unit, institute State conversion equipment input unit, the first generator unit coupling part, the handover module export it is electronic to described first Generator, drives the first dynamotor power generation.
42. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the second driving power generation mode, described when the power drive system of the vehicle is in the described second driving power generation mode Power source works, and the variable-speed unit is connected with the power source power coupling, the conversion equipment input unit and the conversion The power coupling connection of device output section,

First dynamotor passes through the handover module power coupling with the first generator unit coupling part Connection,

A part of power of the power source output passes sequentially through variable-speed unit, the conversion equipment input unit and the converting means Put output section to export to the system dynamic output section, and the rotating speed of the conversion equipment input unit is defeated higher than the system dynamic Go out the rotating speed of the input terminal in portion, another part power of the power source output passes sequentially through variable-speed unit, the conversion equipment Input unit, the first generator unit coupling part, the handover module are exported to first dynamotor, driving The first dynamotor power generation.
43. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the third line car power generation mode, described when the power drive system of the vehicle is in the third line car power generation mode Power source works, and the variable-speed unit is connected with the power source power coupling, the conversion equipment input unit and the conversion The power coupling connection of device output section,

First dynamotor is connected with the variable-speed unit by the handover module power coupling,

A part of power of the power source output passes sequentially through variable-speed unit, the conversion equipment input unit and the converting means Put output section to export to the system dynamic output section, and the rotating speed of the conversion equipment input unit is exported with the system dynamic The rotating speed of the input terminal in portion is identical, and another part power of the power source output passes sequentially through variable-speed unit, the switching mould Block is exported to first dynamotor, drives the first dynamotor power generation.
44. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has fourth line car power generation mode, described when the power drive system of the vehicle is in the fourth line car power generation mode Power source works, and the variable-speed unit is connected with the power source power coupling, the conversion equipment input unit and the conversion The power coupling connection of device output section,

First dynamotor is connected with the variable-speed unit by the handover module power coupling,

A part of power of the power source output passes sequentially through variable-speed unit, the conversion equipment input unit and the converting means Put output section to export to the system dynamic output section, and the rotating speed of the conversion equipment input unit is defeated higher than the system dynamic Go out the rotating speed of the input terminal in portion, another part power of the power source output passes sequentially through variable-speed unit, the handover module Export to first dynamotor, drive the first dynamotor power generation.
45. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the first Brake Energy take-back model, when the power drive system of the vehicle is in the first Brake Energy take-back model, The conversion equipment input unit is connected with conversion equipment output section power coupling, first dynamotor and described the One generator unit coupling part is connected by the handover module power coupling, the power of the wheel from the vehicle according to It is secondary to pass through the system dynamic output section, the conversion equipment output section, the conversion equipment input unit, the first electronic hair Electric motor units coupling part, the handover module drive first dynamotor to generate electricity, and the conversion equipment input unit Rotating speed is identical with the rotating speed of the input terminal of the system dynamic output section.
46. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the second Brake Energy take-back model, when the power drive system of the vehicle is in the second Brake Energy take-back model, The conversion equipment input unit is connected with conversion equipment output section power coupling, first dynamotor and described the One generator unit coupling part is connected by the handover module power coupling, the power of the wheel from the vehicle according to It is secondary to pass through the system dynamic output section, the conversion equipment output section, the conversion equipment input unit, the first electronic hair Electric motor units coupling part, the handover module drive first dynamotor to generate electricity, and the conversion equipment input unit Rotating speed of the rotating speed higher than the input terminal of the system dynamic output section.
47. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the 3rd Brake Energy take-back model, when the power drive system of the vehicle is in the 3rd Brake Energy take-back model, The conversion equipment input unit is connected with conversion equipment output section power coupling, first dynamotor and the change Fast unit is connected by the handover module power coupling, and the power of the wheel from the vehicle passes sequentially through the system and moves Power output section, the conversion equipment output section, the conversion equipment input unit, the variable-speed unit, handover module driving The first dynamotor power generation, and the rotating speed of the conversion equipment input unit and the input terminal of the system dynamic output section Rotating speed it is identical.
48. the power drive system of vehicle according to claim 1, it is characterised in that the powertrain of the vehicle System has the 4th Brake Energy take-back model, when the power drive system of the vehicle is in the 4th Brake Energy take-back model, The conversion equipment input unit is connected with conversion equipment output section power coupling, first dynamotor and the change Fast unit is connected by the handover module power coupling, and the power of the wheel from the vehicle passes sequentially through the system and moves Power output section, the conversion equipment output section, the conversion equipment input unit, the variable-speed unit, handover module driving The first dynamotor power generation, and the rotating speed of the conversion equipment input unit is higher than the input of the system dynamic output section The rotating speed at end.
A kind of 49. power drive system of vehicle, it is characterised in that including：

Power source；

Double clutch, the double clutch have input terminal, the first output terminal and the second output terminal, the output terminal of the power source It is connected with the input terminal of the double clutch；

First input shaft and the second input shaft, first input shaft is connected with first output terminal and second input shaft It is connected with second output terminal, second input shaft is coaxially set on first input shaft, first input At least one driving gear is fixedly installed respectively on axis and second input shaft；

First output shaft and the second output shaft, at least one is set with first output shaft and on second output shaft respectively A driven gear, at least one driven gear are accordingly engaged with least one driving gear, the first output shaft and The driven gear that reverses gear is set with one in second output shaft, the driven gear and the driven gear that reverses gear select Property is engaged with accordingly output shaft；

Reverse gear jackshaft, and the first reverse idler gear and the second reverse idler gear are fixedly installed on the jackshaft that reverses gear, First reverse idler gear is engaged with one at least one driving gear, second reverse idler gear with The driven gear engagement of reversing gear；

First dynamotor；

Three main reducing gear driving gears, three masters, which subtract device driving gear, to be included motor output gear, is fixed at institute State the first output gear on the first output shaft, the second output gear being fixed on second output shaft；

Handover module, the handover module selectivity power coupling are connected in the motor output gear and the driven gear One and first dynamotor；

Main reducing gear driven gear, the main reducing gear driven gear are engaged with the main reducing gear driving gear；

System dynamic output section, wherein the main reducing gear driven gear and the input terminal power coupling of the system dynamic output section When closing connection, the rotating speed of the main reducing gear driven gear turns greater than or equal to the input terminal of the system dynamic output section Speed；

Input terminal disconnection and the handover module power coupling of the main reducing gear driven gear with system dynamic output section connect The motor output gear and first dynamotor are connect, the power source passes through the main reducing gear driven gear, institute State motor output gear, the handover module drives the first dynamotor power generation；

Input terminal disconnection and the handover module power coupling of the main reducing gear driven gear with system dynamic output section connect The driven gear and first dynamotor are connect, the power source is driven by the driven gear, the handover module The dynamic first dynamotor power generation；The system dynamic output section is suitable for will be dynamic from the main reducing gear driven gear Power is exported to two front-wheels；

Trailing wheel dynamotor, the trailing wheel dynamotor drive two trailing wheels by reducing gear.
50. a kind of vehicle, it is characterised in that include the powertrain of the vehicle according to any one of claim 1-49 System.