CN110077212A - A kind of pure electric vehicle double-shaft power coupling four-wheel drive system - Google Patents
A kind of pure electric vehicle double-shaft power coupling four-wheel drive system Download PDFInfo
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- CN110077212A CN110077212A CN201910405259.7A CN201910405259A CN110077212A CN 110077212 A CN110077212 A CN 110077212A CN 201910405259 A CN201910405259 A CN 201910405259A CN 110077212 A CN110077212 A CN 110077212A
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- 238000012546 transfer Methods 0.000 claims abstract description 94
- 239000003638 chemical reducing agent Substances 0.000 claims description 25
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
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Abstract
The invention discloses a kind of pure electric vehicle double-shaft powers to couple four-wheel drive system, it includes front axle drive assembly, rear axle drive assembly and central driving shaft, the both ends of central driving shaft are separately connected front axle drive assembly and rear axle drive assembly, to realize the mutual transmitting of power between front axle drive assembly and rear axle drive assembly.The present invention can be used for all kinds of using the motor-driven four-wheel drive new-energy automobile of pure electric vehicle, such as limousine, offroad vehicle, engineering truck.Pure electric vehicle double-shaft power coupling four-wheel drive system is applicable to axle and carries the identical or different driving motor of power, to realize the power output of different operating conditions.Present invention employs special planetary gear, power coupling transfer gear and main reducing gear unitary designs, more than 10 drive modes such as single motor driving or bi-motor coupling driving can be achieved to adapt to different vehicle driving-cycles, motor drive efficiency, vehicle dynamic property and economy are improved, and guarantees vehicle in the driving capability of Special Road.
Description
Technical field
The present invention relates to new-energy automobile power systems arts more particularly to a kind of pure electric vehicle double-shaft power coupling four-wheel to drive
Dynamic system.
Background technique
With the development of society, automobile has come into huge numbers of families, become the essential vehicles of people's trip.
Since traditional combustion engine automobile constantly causes environmental pollution, and petroleum storage it is increasingly in short supply, develop new-energy automobile at
For the important directions of development of automobile.Currently, urban development is rapid, vehicle is largely used in city, and automobile is transported in city
Situation when row be loiter, speed it is not high, there are various operating conditions.
Pure electric automobile have many advantages, such as zero-emission, pollution-free, low noise, energy utilization rate height with it is easy to maintenance, by very
Alternative solution of more producers as orthodox car, and the driving motor of most of pure electric automobile is using peak power progress
To match, especially the electric car of four-wheel drive, the general allowance of driving motor power designs is more, and under the operating condition of city, and
It does not need motor and exports biggish power, this has resulted in the waste of output power, also increased power consumption, has reduced in continuation of the journey
Journey.For this purpose, many producers are proposed the four-wheel drive system of various pure electric vehicle Two axle drives, these use the pure electric vehicle of the system
Automobile realizes the power output to different operating conditions by the power match of axle different driving motor, but these four-wheels drive
Dynamic system has the following problems: axle is using the 2 sets of motor driven systems separated, although being able to achieve four-wheel drive, one
It cannot achieve the efficient coupling output of double-motor power under a little special operation conditions；When there is front axle or rear axle skids, wheel
The motor of skidding axis i.e. can not output power；It just cannot achieve four-wheel when there is some driving motor failure of front axle or rear axle
Driving；Drive mode is single, can not adapt to various driving cycles.
Summary of the invention
The purpose of the present invention is to provide one kind can be improved motor drive efficiency, vehicle dynamic property and economy, and protects
The pure electric vehicle double-shaft power that vehicle is demonstrate,proved in the driving capability of Special Road couples four-wheel drive system.
To achieve the above object, the invention adopts the following technical scheme:
A kind of pure electric vehicle double-shaft power couples four-wheel drive system comprising front axle drive assembly, rear axle drive assembly and
Central driving shaft, the both ends of central driving shaft are separately connected front axle drive assembly and rear axle drive assembly, to realize that front axle drives
The mutual transmitting of power between assembly and rear axle drive assembly；
The front axle drive assembly includes preceding driving motor A, preceding driving assembly shell A, is equipped in preceding driving assembly shell A
Pre-planetary gear mechanism, clutch C1, brake B1 and preceding main gear reducer structure；
The pre-planetary gear mechanism includes the sun gear A being fixed on input shaft A, and empty set is equipped with row on input shaft A
Several planetary gears A is installed, the inside of each planetary gear A is engaged with sun gear A respectively, each row on carrier A, planet carrier A
It is engaged on the outside of star gear A with outer gear ring A；
The preceding driving motor A is connect by electric motor clutch A with the input shaft A where sun gear A, and input shaft A is close
One end of electric motor clutch A and the inner ring of clutch C1 are affixed, and the outer ring of clutch C1 and planet carrier A are affixed,
The outer rim of the inner ring and outer gear ring A of the brake B1 is affixed, and the outer ring of brake B1 is fixed in preceding drive assembly
On shell；
It is rotatablely installed sprocket drive spindle A in driving assembly shell A before described, gear shaft A subtracts close to one end of front-wheel with preceding master
Fast mechanism connection；
It is rotatablely installed sprocket drive spindle A in driving assembly shell A before described, gear shaft A subtracts close to one end of front-wheel with preceding master
Fast mechanism connection, preceding main gear reducer structure export power respectively to preceding left wheel and front right wheel；
The side the planet carrier A is connected with helical gear A, and helical gear A empty set is on the input shaft A where sun gear A,
Power coupling transfer gear, preceding power coupling transfer gear are separately connected gear shaft A before the helical gear A is connected with
With central driving shaft close to one end of front axle drive assembly；
The rear axle drive assembly includes rear driving motor B, drives assembly shell afterwards, after being equipped in rear driving assembly shell
Planetary gear mechanism, clutch C7, brake B2 and rear main gear reducer structure,
Planetary gear mechanism includes the sun gear B being fixed on input shaft B after described, and empty set is equipped with row on input shaft B
Several planetary gears B is installed, the inside of each planetary gear B is engaged with sun gear B respectively, each row on carrier B, planet carrier B
It is engaged on the outside of star gear B with outer gear ring B；
Driving motor B is connect by electric motor clutch B with the input shaft B where sun gear B after described, and input shaft B is close
One end of electric motor clutch B and the inner ring of clutch C7 are affixed, and the outer ring of clutch C7 and planet carrier B are affixed,
The outer rim of the inner ring and outer gear ring B of the brake B2 is affixed, and the outer ring of brake B2 is fixed in rear drive assembly
On shell；
Sprocket drive spindle B is rotatablely installed before described in driving assembly shell B, gear shaft B subtracts close to one end of rear-wheel with rear master
Fast mechanism connection, rear main gear reducer structure export power respectively to rear left wheel and rear right wheel；
The side the planet carrier B is connected with helical gear B, and helical gear B empty set is on the input shaft B where sun gear B,
The helical gear B is connected with rear power coupling transfer gear, and rear power coupling transfer gear is separately connected gear shaft B
With central driving shaft close to one end of rear axle drive assembly.
Further, the preceding main gear reducer structure includes intermeshing bevel pinion A and bevel gear wheel A, bevel pinion A
Gear shaft A is fixed on one end of front-wheel, bevel gear wheel A is connected with differential casing A, is equipped in differential casing A
Left half axle before the left bevel gear of differential mechanism A, differential mechanism A connect, preceding left half axle is in differential mechanism side and clutch C2
Enclose affixed, the outer ring of clutch C2 and differential casing A are affixed, right axle shaft before the right side bevel gear of differential mechanism A connects, before described
Left half axle output power gives preceding left wheel, and preceding right axle shaft output power gives front right wheel.
Further, the rear main gear reducer structure includes intermeshing bevel pinion B and bevel gear wheel B, bevel pinion B
Gear shaft B is fixed on one end of rear-wheel, bevel gear wheel B is connected with differential casing B, is equipped in differential casing B
Left half axle after the left bevel gear connection of differential mechanism B, differential mechanism B, rear left half axle is in differential mechanism side and clutch C6
Enclose affixed, the outer ring of clutch C6 and differential casing B are affixed, right axle shaft after the right side bevel gear connection of differential mechanism B, rear left half
Axis output power gives rear left wheel, and rear right axle shaft output power gives rear right wheel.
Further, the preceding power coupling transfer gear includes that intermeshing transfer gear helical gear A and transfer gear are oblique
Gear B, the transfer gear helical gear A are engaged with helical gear A, and transfer gear helical gear A empty set is on gear shaft A, transfer gear helical teeth
The outer ring of the affixed clutch C3 in side of A is taken turns, the inner ring and gear shaft A of clutch C3 is affixed；The transfer gear helical gear B empty set
In central driving shaft on one end of front axle drive assembly, transfer gear helical gear B is close to the affixed clutch in rear-wheel direction side
The outer ring of C4, the inner ring and central driving shaft of clutch C4 are affixed.
Further, the rear power coupling transfer gear includes that intermeshing transfer gear helical gear C and transfer gear are oblique
Gear D, the transfer gear helical gear C are engaged with helical gear B, and transfer gear helical gear C empty set is on gear shaft B, transfer gear helical teeth
The outer ring of the affixed clutch C5 in side of C is taken turns, the inner ring and gear shaft B of clutch C5 is affixed；The transfer gear helical gear D is affixed
In central driving shaft on one end of rear axle drive assembly.
The present invention compares current existing four-wheel drive system, has the advantage that (1) axle has been all made of driving electricity
The structures such as machine, planetary gear mechanism, power coupling transfer gear and main gear reducer structure are, it can be achieved that axle realizes independence simultaneously
Driving or power coupling driving, are suitable for a variety of different operating conditions；(2) the power coupling transfer gear designed can realize that each axis drives
Dynamic motor independently drives, four-wheel drive and realization power distribute, and enables entire car controller more reasonably using drive
Dynamic model formula and distribution power；(3) pure electric vehicle double-shaft power coupling four-wheel drive system has 16 kinds of drive modes, includes: preceding
One grade, two grades front-wheel drives of motor, one grade, two grades rear wheel drives of rear motor, one grade of four-wheel drive of front motor, two grade four of front motor
Wheel drive, the one grade of four-wheel drive of rear motor, the two grades of four-wheel drives of rear motor, one grade of four-wheel drive of bi-motor, two grade four of bi-motor
Wheel drive, bi-motor couple one grade of front-wheel drive, and bi-motor couples one grade of rear wheel drive and other 4 kinds of spare drive modes, drive
Dynamic model formula is more, to the adaptable of various operating conditions；(4) identical function can be used in pure electric vehicle double-shaft power coupling four-wheel drive system
The driving motor of rate or different capacity is simultaneously installed on front axle or rear axle, and different power is exported under different operating conditions to realize,
Motor power matching range is bigger, and reduces four-wheel driving electric vehicle power consumption, improves cruising ability.
Detailed description of the invention
The present invention is described in further details below in conjunction with the drawings and specific embodiments:
Fig. 1 is that pure electric vehicle double-shaft power of the present invention couples four-wheel drive system general structure schematic diagram；
Fig. 2 is mono- grade of driving power transmitting schematic diagram of driving motor A before the present invention；
Fig. 3 is bis- grades of driving power transmitting schematic diagrames of driving motor A before the present invention；
Fig. 4 is mono- grade of four-wheel drive power transmitting schematic diagram of driving motor A before the present invention；
Fig. 5 is mono- grade of four-wheel drive power transmitting schematic diagram of driving motor B after the present invention；
Fig. 6 is that one grade of four-wheel drive power of bi-motor of the present invention transmits schematic diagram；
Fig. 7 is that bi-motor of the present invention couples one grade of front-wheel drive power transmitting schematic diagram.
Specific embodiment
As shown in Figure 1, a kind of present invention pure electric vehicle double-shaft power coupling four-wheel drive system it include front axle drive assembly,
Rear axle drive assembly and central driving shaft 17, the both ends of central driving shaft are separately connected front axle drive assembly and rear axle driving is total
At to realize the mutual transmitting of power between front axle drive assembly and rear axle drive assembly；
The front axle drive assembly includes preceding driving motor A3, preceding driving assembly shell A5, in preceding driving assembly shell A5
Equipped with pre-planetary gear mechanism, clutch C11, brake B118 and preceding main gear reducer structure；
The pre-planetary gear mechanism includes the sun gear A22 being fixed on input shaft A, and empty set is equipped on input shaft A
Several planetary gears A20 is installed on planet carrier A21, planet carrier A21, the inside of each planetary gear A20 respectively with sun gear
A22 engagement, each outside planetary gear A20 are engaged with outer gear ring A19；
The preceding driving motor A3 is connect by electric motor clutch A2 with the input shaft A where sun gear A22, input shaft A
Affixed close to one end of electric motor clutch A2 and the inner ring of clutch C11, the outer ring of clutch C11 and planet carrier A21 are affixed,
The outer rim of the inner ring and outer gear ring A19 of the brake B118 is affixed, and the outer ring of brake B118 is fixed in forerunner
On dynamic assembly shell 5；
Sprocket drive spindle A12 is rotatablely installed before described in driving assembly shell A, gear shaft A12 is close to one end of front-wheel with before
The connection of main gear reducer structure；
Sprocket drive spindle A12 is rotatablely installed before described in driving assembly shell A5, gear shaft A12 is close to one end of front-wheel with before
The connection of main gear reducer structure, preceding main gear reducer structure export power respectively to preceding left wheel and front right wheel；
The side the planet carrier A21 is connected with helical gear A23, and helical gear A23 empty set is in the input where sun gear A22
On axis A,
Power coupling transfer gear, preceding power coupling transfer gear are separately connected gear shaft A before the helical gear A is connected with
With central driving shaft close to one end of front axle drive assembly；
The rear axle drive assembly includes rear driving motor B42, rear driving assembly shell 24, is driven in assembly shell 24 afterwards
Equipped with rear planetary gear mechanism, clutch C744, brake B225 and rear main gear reducer structure,
Planetary gear mechanism includes the sun gear B29 being fixed on input shaft B after described, and empty set is equipped on input shaft B
Several planetary gears B27 is installed on planet carrier B28, planet carrier B28, the inside of each planetary gear B27 respectively with sun gear
B29 engagement, each outside planetary gear B27 are engaged with outer gear ring B26；
Driving motor B42 is connect by electric motor clutch B43 with the input shaft B where sun gear B29 after described, input shaft
B is affixed close to one end of electric motor clutch B43 and the inner ring of clutch C744, and the outer ring of clutch C744 and planet carrier B28 are affixed,
The outer rim of the inner ring and outer gear ring B26 of the brake B225 is affixed, and the outer ring of brake B225 is fixed in rear-guard
On dynamic assembly shell 24；
It is described before driving assembly shell B24 in be rotatablely installed sprocket drive spindle B34, gear shaft B34 close to rear-wheel one end with
Main gear reducer structure connects afterwards, and rear main gear reducer structure exports power respectively to rear left wheel and rear right wheel；
The side the planet carrier B28 is connected with helical gear B30, and helical gear B30 empty set is in the input where sun gear B29
On axis B,
The helical gear B30 is connected with rear power coupling transfer gear, and rear power coupling transfer gear is separately connected gear
Axis B and central driving shaft are close to one end of rear axle drive assembly.
The preceding main gear reducer structure includes intermeshing bevel pinion A11 and bevel gear wheel A8, and bevel pinion A is fixed in
For gear shaft A on one end of front-wheel, bevel gear wheel A8 is connected with differential casing A6, is equipped with differential in differential casing A6
Left half axle 10 before the left bevel gear of device A7, differential mechanism A7 connect, preceding left half axle 10 is close to differential mechanism side with clutch C29's
Inner ring is affixed, and the outer ring of clutch C29 and differential casing A6 are affixed, right axle shaft 4 before the right side bevel gear of differential mechanism A7 connects,
10 output power of preceding left half axle gives preceding left wheel, and preceding 4 output power of right axle shaft gives front right wheel.
Main gear reducer structure includes intermeshing bevel pinion B35 and bevel gear wheel B39 after described, and bevel pinion B35 is solid
It connects on one end in gear shaft B34 close to rear-wheel, bevel gear wheel B39 is connected with differential casing B38, in differential casing B38
Differential mechanism B40 is installed, left half axle 36 after the left bevel gear connection of differential mechanism B40, rear left half axle 36 is close to differential mechanism side
Affixed with the inner ring of clutch C637, the outer ring of clutch C637 and differential casing B38 are affixed, the right side cone of differential mechanism B40
Right axle shaft 41 after gear connection, rear 36 output power of left half axle give rear left wheel, and rear 41 output power of right axle shaft gives rear right wheel.
The preceding power coupling transfer gear includes intermeshing transfer gear helical gear A14 and transfer gear helical gear B15,
The transfer gear helical gear A14 is engaged with helical gear A23, and for transfer gear helical gear A14 empty set on gear shaft A12, transfer gear is oblique
The outer ring of the affixed clutch C313 in the side of gear A 14, the inner ring and gear shaft A12 of clutch C313 are affixed；The transfer gear
Helical gear B15 empty set is in central driving shaft 17 on one end of front axle drive assembly, and transfer gear helical gear B15 is close to rear-wheel side
To the outer ring of the affixed clutch C416 in side, the inner ring and central driving shaft 17 of clutch C416 is affixed.
Power coupling transfer gear includes intermeshing transfer gear helical gear C32 and transfer gear helical gear D33 after described,
The transfer gear helical gear C32 is engaged with helical gear B30, and for transfer gear helical gear C32 empty set on gear shaft B34, transfer gear is oblique
The outer ring of the affixed clutch C531 in the side of gear C 32, the inner ring and gear shaft B34 of clutch C531 are affixed；The transfer gear
Helical gear D33 is fixed in central driving shaft 17 on one end of rear axle drive assembly.
Above-described each gear shaft, transmission shaft pass through corresponding bearing (being not drawn into figure) and are mounted on forward and backward driving always
At shell in, Clutch and brake in drive assembly is controlled using hydraulic mechanism (being not drawn into figure).
Pure electric vehicle double-shaft power coupling four-wheel drive system one shares 16 kinds of drive modes, and different working modes is each
Driving motor, electric motor clutch, Clutch and brake working principle in drive assembly, as shown in table 1:
1 pure electric vehicle double-shaft power of table couples each drive mode working principle of four-wheel drive system
The typical condition in table 1 is described further the working principle of the invention below:
It is illustrated in figure 2 one grade of front-wheel drive of front motor under underloading forerunner's starting operating condition, at this time preceding driving motor A3 and electricity
Machine clutch A2 work, imparts power to the input shaft of the sun gear A22 of front axle drive assembly pre-planetary gear mechanism, simultaneously
Brake B118 work works outer gear ring A19 locking, clutch C313 by transfer gear helical gear A14 and gear shaft A12 power
In conjunction with.At this point, power output route: preceding driving motor A3 → electric motor clutch A2 → sun gear A22 → planet carrier A21 → helical teeth
Wheel A23 → transfer gear helical gear A14 → gear shaft A12 → bevel pinion A11 → bevel gear wheel A8 → differential casing A6 → poor
Fast device A7 → preceding right axle shaft 4 and preceding left half axle 10.At this point, other each gear sets are in idling conditions, other each brakes, from
Clutch, rear driving motor B42, electric motor clutch B43 do not work.And one grade of rear wheel drive of motor after being lightly loaded under rear-guard starting operating condition
Working principle and power transmission line it is similar.
It is illustrated in figure 3 front motor second gear front-wheel drive under underloading forerunner's driving cycle, at this time preceding driving motor A3 and electricity
Machine clutch A2 work, imparts power to the input shaft of the sun gear A22 of front axle drive assembly pre-planetary gear mechanism, simultaneously
Clutch C11 work is affixed by the input shaft of sun gear A22 and planet carrier A21, directly transmitting power.At this point, power transmission road
Line: preceding driving motor A3 → electric motor clutch A2 → sun gear A22 → planet carrier A21 → helical gear A23 → transfer gear helical gear
A14 → gear shaft A12 → bevel pinion A11 → bevel gear wheel A8 → differential casing A6 → differential mechanism A7 → preceding right axle shaft 4 with
Preceding left half axle 10.At this point, other each gear sets are in idling conditions, other each brakes, clutch, rear driving motor B42,
Electric motor clutch B43 does not work.And the working principle of two grades of rear wheel drives of motor and power pass after being lightly loaded under rear-guard driving cycle
It is similar to pass route.
It is illustrated in figure 4 one grade of four-wheel drive of front motor under underloading front motor 4 wheel driven starting operating condition, at this time preceding driving motor
A3 and electric motor clutch A2 works, and imparts power to the input of the sun gear A22 of front axle drive assembly pre-planetary gear mechanism
Axis, simultaneously: brake B118 works outer gear ring A19 locking；Clutch C313 works transfer gear helical gear A14 and gear shaft
A12 power combines；Clutch C416 work, transfer gear helical gear B15 and central driving shaft 17 is affixed, it realizes and is transmitted to rear axle
Power；Clutch C531 work, transfer gear helical gear C32 and gear shaft B34 is affixed, it realizes dynamic to rear primary gearbox transmitting
Power.At this point, power transmission route: preceding driving motor A3 → electric motor clutch A2 → sun gear A22 → planet carrier A21 → helical gear
After A23 → transfer gear helical gear A14, a part of power is via transfer gear helical gear A14 → gear shaft A12 → bevel pinion A11
→ bevel gear wheel A8 → differential casing A6 → differential mechanism A7 → preceding right axle shaft 4 and preceding left half axle 10 realize forerunner；Another part
Power is via transfer gear helical gear A14 → transfer gear helical gear B15 → 17 → transfer gear of central driving shaft helical gear D33 → transfer
Device helical gear C32 → gear shaft B34 → bevel pinion B35 → bevel gear wheel B39 → differential casing B38 → differential mechanism B40 →
Right axle shaft 41 and rear left half axle 36 realize rear-guard afterwards.At this point, other each gear sets are in idling conditions, other each brakes,
Clutch does not work.And it is lightly loaded the working principle of two grades of four-wheel drives of front motor and Fig. 3, Fig. 4 under front motor 4 wheel driven driving cycle
Power transmission line it is similar, the rear-guard power transmission line in Fig. 4 is only increased on the basis of Fig. 3.
It is illustrated in figure 5 one grade of four-wheel drive of rear motor under motor 4 wheel driven starting operating condition after being lightly loaded, at this time rear driving motor
B42 and electric motor clutch B43 work, and impart power to the defeated of the sun gear B29 of planetary gear mechanism after rear axle drive assembly
Enter axis, simultaneously: brake B225 works outer gear ring B26 locking；Clutch C531 work, by transfer gear helical gear C32 and tooth
Wheel shaft B34 is affixed；Clutch C416 work, transfer gear helical gear B15 and central driving shaft 17 is affixed, it realizes and is transmitted to front axle
Power；Transfer gear helical gear A14 in conjunction with gear shaft A12 power, is realized that main reducing gear transmits forward by clutch C313 work
Power.At this point, power transmission route: rear driving motor B3 → electric motor clutch B43 → sun gear B29 → planet carrier B28 → tiltedly
After gear B 30 → transfer gear helical gear C32, a part of power is via transfer gear helical gear C32 → gear shaft B34 → bevel pinion
B35 → bevel gear wheel B39 → differential casing B38 → differential mechanism B40 → rear right axle shaft 41 and rear left half axle 36 realize rear-guard；Separately
A part of power is via transfer gear helical gear C32 → transfer gear helical gear D33 → central driving shaft 17 → transfer gear helical gear B15
→ transfer gear helical gear A14 → gear shaft A12 → bevel pinion A11 → bevel gear wheel A8 → differential casing A6 → differential mechanism A7
→ preceding right axle shaft 4 and preceding left half axle 10 realize forerunner.At this point, other each gear sets are in idling conditions, other each brakes,
Clutch does not work.And after being lightly loaded under motor 4 wheel driven driving cycle after two grades of four-wheel drives of motor working principle and Fig. 5 it is dynamic
Power transfer route is similar, is only changed to second gear for one grade of planetary gear.
It is illustrated in figure 6 one grade of four-wheel drive of bi-motor under heavily loaded 4 wheel driven starting operating condition, at this point for front axle: preceding driving electricity
Machine A3 and electric motor clutch A2 works, and imparts power to the defeated of the sun gear A22 of front axle drive assembly pre-planetary gear mechanism
Enter axis, while brake B118 work, by outer gear ring A19 locking, clutch C313 works transfer gear helical gear A14 and gear
Axis A12 power combines.At this point, power output route: preceding driving motor A3 → electric motor clutch A2 → sun gear A22 → planet carrier
A21 → helical gear A23 → transfer gear helical gear A14 → gear shaft A12 → bevel pinion A11 → bevel gear wheel A8 → differential carrier
Body A6 → differential mechanism A7 → preceding right axle shaft 4 and preceding left half axle 10.For rear axle: driving motor B42 and electric motor clutch after at this time
B43 work, imparts power to the input shaft of the sun gear B29 of planetary gear mechanism after rear axle drive assembly, simultaneously: brake
B225 works outer gear ring B26 locking；Clutch C531 work, transfer gear helical gear C32 and gear shaft B34 is affixed；It realizes
Power is transmitted to rear primary gearbox.At this point, power transmission route: rear driving motor B3 → electric motor clutch B43 → sun gear B29
→ planet carrier B28 → helical gear B30 → transfer gear helical gear C32 → gear shaft B34 → bevel pinion B35 → bevel gear wheel B39
→ differential casing B38 → differential mechanism B40 → rear right axle shaft 41 and rear left half axle 36 realize rear-guard.At this point, other each gear sets
It is in idling conditions, other each brakes, clutch do not work, as long as front and back driving motor passes through the speed regulation of controller
The antero posterior axis revolving speed avoided under four-wheel drive is inconsistent.
Being illustrated in figure 7 front-wheel starting operating condition when heavily loaded rear axle skids uses bi-motor to couple one grade of front-wheel drive, at this time
Preceding driving motor A3 and electric motor clutch A2 works, and imparts power to the sun gear of front axle drive assembly pre-planetary gear mechanism
The input shaft of A22, while brake B118 work, by outer gear ring A19 locking, clutch C313 works transfer gear helical gear A14
In conjunction with gear shaft A12 power；Meanwhile rear driving motor B42 and electric motor clutch B43 works, and imparts power to rear axle drive
The input shaft of the sun gear B29 of planetary gear mechanism after dynamic assembly, simultaneously: clutch C416 work, by transfer gear helical gear B15
It is affixed with central driving shaft 17, it realizes to front axle and transmits power.At this point, power output route: front motor power is by preceding driving electricity
Machine A3 → electric motor clutch A2 → sun gear A22 → planet carrier A21 → helical gear A23 → transfer gear helical gear A14；Motor afterwards
Power is by rear driving motor B3 → electric motor clutch B43 → sun gear B29 → planet carrier B28 → helical gear B30 → transfer gear helical teeth
Take turns C32 → transfer gear helical gear D33 → 17 → transfer gear of central driving shaft helical gear B15 → transfer gear helical gear A14；Front and back electricity
The power of machine couples at transfer gear helical gear A14, and pass to gear shaft A12 → bevel pinion A11 → bevel gear wheel A8 →
Differential casing A6 → differential mechanism A7 → preceding right axle shaft 4 and preceding left half axle 10 realize bi-motor and couple one grade of front-wheel drive.This
When, other each gear sets are in idling conditions, and other each brakes, clutch do not work.And rear-wheel when heavy duty front axle skidding
The operating condition that starts to walk is similar using the working principle and power transmission line of bi-motor one grade of rear wheel drive of coupling.
The working principle of standby mode is similar with the working principle of above-mentioned each typical condition.
Other than above-mentioned operating condition, when the four-wheel drive system encounters front axle side wheel-slip, front axle drive system
Controllable clutch C29 work, so that differential casing A6 and preceding left half axle 10 are affixed, i.e., it is left so that differential mechanism A7 does not work
Off-front wheel revolving speed is equal to enable front axle to prevent from skidding；Likewise, rear axle drive system can when rear axle side wheel-slip
Clutch C637 work is controlled, so that differential casing B38 and rear left half axle 36 are affixed, i.e., it is left so that differential mechanism B40 does not work
Off hind wheel revolving speed is equal to enable rear axle to prevent from skidding.
Claims (5)
1. a kind of pure electric vehicle double-shaft power couples four-wheel drive system, it is characterised in that: it includes front axle drive assembly, rear axle drive
Dynamic assembly and central driving shaft, the both ends of central driving shaft are separately connected front axle drive assembly and rear axle drive assembly, to realize
The mutual transmitting of power between front axle drive assembly and rear axle drive assembly；
The front axle drive assembly includes preceding driving motor A, preceding driving assembly shell A, is equipped with and moves ahead in preceding driving assembly shell A
Star gear mechanism, clutch C1, brake B1 and preceding main gear reducer structure；
The pre-planetary gear mechanism includes the sun gear A being fixed on input shaft A, and empty set is equipped with planet carrier on input shaft A
Several planetary gears A is installed, the inside of each planetary gear A is engaged with sun gear A respectively, each planet tooth on A, planet carrier A
It is engaged on the outside of wheel A with outer gear ring A；
The preceding driving motor A is connect by electric motor clutch A with the input shaft A where sun gear A, and input shaft A is close to motor
One end of clutch A and the inner ring of clutch C1 are affixed, and the outer ring of clutch C1 and planet carrier A are affixed,
The outer rim of the inner ring and outer gear ring A of the brake B1 is affixed, and the outer ring of brake B1 drives assembly shell before being fixed in
On；
Sprocket drive spindle A, the one end and preceding main gear reducer of gear shaft A close to front-wheel are rotatablely installed before described in driving assembly shell A
Structure connection；
Sprocket drive spindle A, the one end and preceding main gear reducer of gear shaft A close to front-wheel are rotatablely installed before described in driving assembly shell A
Structure connection, preceding main gear reducer structure export power respectively to preceding left wheel and front right wheel；
The side the planet carrier A is connected with helical gear A, and helical gear A empty set is on the input shaft A where sun gear A,
Power coupling transfer gear before the helical gear A is connected with, preceding power coupling transfer gear are separately connected gear shaft A in
Entreat transmission shaft close to one end of front axle drive assembly；
The rear axle drive assembly includes rear driving motor B, drives assembly shell afterwards, and rear drive is equipped with rear planet in assembly shell
Gear mechanism, clutch C7, brake B2 and rear main gear reducer structure,
Planetary gear mechanism includes the sun gear B being fixed on input shaft B after described, and empty set is equipped with planet carrier on input shaft B
Several planetary gears B is installed, the inside of each planetary gear B is engaged with sun gear B respectively, each planet tooth on B, planet carrier B
It is engaged on the outside of wheel B with outer gear ring B；
Driving motor B is connect by electric motor clutch B with the input shaft B where sun gear B after described, and input shaft B is close to motor
One end of clutch B and the inner ring of clutch C7 are affixed, and the outer ring of clutch C7 and planet carrier B are affixed,
The outer rim of the inner ring and outer gear ring B of the brake B2 is affixed, and the outer ring of brake B2 drives assembly shell after being fixed in
On；
Sprocket drive spindle B, the one end and rear main gear reducer of gear shaft B close to rear-wheel are rotatablely installed before described in driving assembly shell B
Structure connection, rear main gear reducer structure export power respectively to rear left wheel and rear right wheel；
The side the planet carrier B is connected with helical gear B, and helical gear B empty set is on the input shaft B where sun gear B,
The helical gear B is connected with rear power coupling transfer gear, and rear power coupling transfer gear is separately connected gear shaft B in
Entreat transmission shaft close to one end of rear axle drive assembly.
2. a kind of pure electric vehicle double-shaft power according to claim 1 couples four-wheel drive system, it is characterised in that: before described
Main gear reducer structure includes intermeshing bevel pinion A and bevel gear wheel A, and bevel pinion A is fixed in gear shaft A close to front-wheel
On one end, bevel gear wheel A is connected with differential casing A, and differential mechanism A, the left side cone of differential mechanism A are equipped in differential casing A
Gear connect before left half axle, preceding left half axle is affixed close to differential mechanism side and the inner ring of clutch C2, the outer ring of clutch C2 and
Differential casing A is affixed, and right axle shaft before the right side bevel gear of differential mechanism A connects, the preceding left half axle output power gives front left vehicle
Wheel, preceding right axle shaft output power give front right wheel.
3. a kind of pure electric vehicle double-shaft power according to claim 1 couples four-wheel drive system, it is characterised in that: after described
Main gear reducer structure includes intermeshing bevel pinion B and bevel gear wheel B, and bevel pinion B is fixed in gear shaft B close to rear-wheel
On one end, bevel gear wheel B is connected with differential casing B, and differential mechanism B, the left side cone of differential mechanism B are equipped in differential casing B
Gear connection after left half axle, rear left half axle is affixed close to differential mechanism side and the inner ring of clutch C6, the outer ring of clutch C6 and
Differential casing B is affixed, and right axle shaft after the right side bevel gear connection of differential mechanism B, rear left half axle output power gives rear left wheel, after
Right axle shaft output power gives rear right wheel.
4. a kind of pure electric vehicle double-shaft power according to claim 1 couples four-wheel drive system, it is characterised in that: before described
Power coupling transfer gear includes intermeshing transfer gear helical gear A and transfer gear helical gear B, the transfer gear helical gear A
Engaged with helical gear A, transfer gear helical gear A empty set on gear shaft A, the affixed clutch C3's in the side of transfer gear helical gear A
Outer ring, the inner ring and gear shaft A of clutch C3 are affixed；The transfer gear helical gear B empty set is driven in central driving shaft close to front axle
On one end of dynamic assembly, transfer gear helical gear B is close to the outer ring of the affixed clutch C4 in rear-wheel direction side, the inner ring of clutch C4
It is affixed with central driving shaft.
5. a kind of pure electric vehicle double-shaft power according to claim 1 couples four-wheel drive system, it is characterised in that: after described
Power coupling transfer gear includes intermeshing transfer gear helical gear C and transfer gear helical gear D, the transfer gear helical gear C
Engaged with helical gear B, transfer gear helical gear C empty set on gear shaft B, the affixed clutch C5's in the side of transfer gear helical gear C
Outer ring, the inner ring and gear shaft B of clutch C5 are affixed；The transfer gear helical gear D is fixed in central driving shaft and drives close to rear axle
On one end of dynamic assembly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910405259.7A CN110077212B (en) | 2019-05-16 | 2019-05-16 | Pure electric double-shaft power coupling four-wheel drive system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910405259.7A CN110077212B (en) | 2019-05-16 | 2019-05-16 | Pure electric double-shaft power coupling four-wheel drive system |
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| CN110077212A true CN110077212A (en) | 2019-08-02 |
| CN110077212B CN110077212B (en) | 2024-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843761A (en) * | 2019-11-29 | 2020-02-28 | 江苏徐工工程机械研究院有限公司 | Loader power system, control method thereof and loader |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999190A (en) * | 2006-12-22 | 2007-07-18 | 吉林大学 | Biaxial four-wheel driven series type mixed power electric vehicle |
| DE102011056047A1 (en) * | 2011-12-05 | 2013-06-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Powertrain of a purely electric allradbetreibbaren motor vehicle |
| CN210234637U (en) * | 2019-05-16 | 2020-04-03 | 福建工程学院 | Pure electric double-shaft power coupling four-wheel drive system |
-
2019
- 2019-05-16 CN CN201910405259.7A patent/CN110077212B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999190A (en) * | 2006-12-22 | 2007-07-18 | 吉林大学 | Biaxial four-wheel driven series type mixed power electric vehicle |
| DE102011056047A1 (en) * | 2011-12-05 | 2013-06-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Powertrain of a purely electric allradbetreibbaren motor vehicle |
| CN210234637U (en) * | 2019-05-16 | 2020-04-03 | 福建工程学院 | Pure electric double-shaft power coupling four-wheel drive system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843761A (en) * | 2019-11-29 | 2020-02-28 | 江苏徐工工程机械研究院有限公司 | Loader power system, control method thereof and loader |
| CN110843761B (en) * | 2019-11-29 | 2024-02-02 | 江苏徐工工程机械研究院有限公司 | Loader power system, control method thereof and loader |
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| Publication number | Publication date |
|---|---|
| CN110077212B (en) | 2024-04-05 |
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