Innovative Drive Technology€¦ · 5 System and functional description H1F 1RH1F 1RH2F The core...

www.vds-getriebe.atContinuously Variable Transmissions and Power Split Systems

Continuously Variable Transmissions

and Power Split Systems

Your Partner for Innovative Drive Technology

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Terminology

hydrostatic VariatorH1F: hydrostatic range + one powersplit range forwardH2F: hydrostatic range + two powersplit ranges forward1RH1F: one powersplit range reverse + hydrostatic range + one powersplit range forward1RH2F: one powersplit range reverse + hydrostatic range + two powersplit ranges forward

electric VariatorE1F: electric range + one powersplit range forwardE2F: electric range + two powersplit ranges forward1RE1F: one powersplit range reverse + electric range + one powersplit range forward1RE2F: one powersplit range reverse + electric range + two powersplit ranges forward

www.vds-getriebe.at

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VTP - Variable Twin Planetary

Transmission

1. VTP450 - Modular System

2. VTP - Agric Tractors

3. VTP500

3.1. VTP500 - 4WD short

3.2. VTP500 - inline short

3.3. VTP500 - 4WD long

3.4. VTP500 - Electric Variator long

3.5. VTP500 - Transaxle

3.6. VTP500 - Telehandler

4. VTP1750

5. VTP1500 - Shredder

VPD - Variable Power Divider1. VPD2500

2. VPD4000

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Continuously Variable Transmissions and Power Split Systems

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Hydro-mechanical or electric-mechanical powersplit solution maximizing the advantages of both hydrostatic/electric and mechanical power transfer

Patented planetary system combined with a closed-loop variator system

Always in the „perfect gear“ for peak operating performance and efficiency Vehicle speed decoupled from engine speed

Reduced environmental impact

Reduced operating cost

VTP - Variable Twin Planetary Transmission

VTP System - Variable Twin Planet

How it worksThe variable twin planet (VTP) system defines a new series of continuously variable transmissions (CVT) operating on the prin-ciple of hydrostatic-mechanical or electric- mechanical power split.

To achieve high gradeability and drawbar pull with reasonable variator sizes, the transmission can be configured with one, two or three mechanical gear ranges shifted by powershift clutches.

A breakthrough in continuously variable transmission technology

Ring gear: Input mechanical powerSun gear: Driven by variator o Hydrostatic or electric powerCarrier: Variable output speed

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System and functional description

H1F 1RH1F 1RH2F

The core element of the novel VTP stepless transmission is a twin planetary gear set at transmission output. One of the two planetary gear sets is a reverse planetary gear set and is active only at low speed in pure variator operation (Gear set 2), while the superposition of mechanical and variator-power occurs in the planetary Gear set 1.

The selected arrangement and the gear ratios in the two planetary gear sets provide excellent gradeability with small variator dimensions as well as large gear spread with low mechanical effort.

Variators like compact hydro units in back-to-back arrangement, separate hydropumps and hydromotors in a closed cycle or electric variators can be used.

At low speeds, the vehicle is powered only by the hydrostatic power branch. Connection of ring gear H2 with the housing in planetary gear set 2 transfers power from the hydromotor via sun gear S2 and the planet carrier to the drive

wheels (see figure page 6). The transmission components in the mechanical power transmission path do not transfer any load in this operation range. Their rotational speeds at the drive end are defined by their coupling in planet gear set 1 and at the input side through coupling to the transmission input shaft. Planet gear set 2 has got a high gear ratio to achieve high pull forces with small hydrostatic units.

The rotational motion of sun gears S1 and S2 or of the planet carrier forces a speed at ring gear H1 that leads to synchronous rotational speeds on adequately high rotational speed of the sun gears at couplings K1 on forward travel or at coupling KR on backward travel.

On reaching synchronous speed, the system shifts from hydrostatic drive to the continuous power branch without interruption of the output torque and corresponding pulling force. Switching occurs via overlapping of the closing of the respective coupling and subsequent opening of the ring gear brake. The couplings and brakes are multiple disk models.

o VTP System - Variable Twin Planet

H1F

1RH1F

1RH2F

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After shifting, the mechanical drive is transferred via ring gear H1, which is coupled to the transmission input shaft and rotates at constant speed. Continuous change of the speed of the hydrostatic branch steplessly adapts the overall gear ratio. Immediately after shifting to the power-split range, the sun gear in planetary gear set 1 rotates opposite to the ring gear and thereby reduces the speed of the planet carrier. In this operation range, the transmission functions at reverse power, which means that the hydromotor works as a pump and returns to the mechanical branch via the hydrostatic circuit. On a change of the pivot angle hydropump swash plate, the speed of the hydromotor is adapted from maximum speed against the direction of the ring gear via swash plate angle zero to the maximum speed in the same direction as ring gear H1. On swash plate angle zero, the transmission operates at maximum efficiency because the complete drive power is transferred purely mechanically. The hydromotor must deliver only the power loss to support the torque of sun gear S1at zero speed.

On further adjustment of the swash plate, the speed of sun gear S1 is increased in the same direction as ring gear H1 until maximum travel speed in the first power-split range is reached.

Switching from the first to the second power-split range occurs via a power shift with the variator unit compensating the step. On this

special shifting function, the overlapping shifting of couplings K1 and K2 forces a continuous increase of speed on ring gear H1; during acceleration of the ring gear, the adaptation of the speed of the sun gear enables maintaining a constant overall gear ratio or adapting it to the respective operating conditions. On completion of the shift, the gear ratio in the

second powersplit range is nearly the same as before shifting out of the first. This process enables stepless adjustment of the gear ratio in two powersplit ranges with high overall gear spread.

The gear ratio in planetary gear set 1 is significantly lower than in planetary gear set 2 in order to achieve high gear spread in the power-split areas and also to keep the pressure level in the hydrostatic circuit within a range where the hydropump and the hydromotor can work with good efficiency.

Planetary gear set 2

Ringgear H2

Sungear S2

Planetary gears P2a P2b

Planetary gear set 1

Ringgear H1

Sungear S1

Planetary gears P1

Carrier

o System and functional description

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The figure below shows the efficiency characteristic versus the travel speed at constant input rotational speed. Notable are the characteristic camel backs at the center of the powersplit ranges, where the complete drive power is transferred purely mechani-cally and the transmission provides the best efficiency.

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Output Speed

Ringgear H2

Sungears S1 and S2

Ringgear H1

Carrier

Shifting at synchronous

speed

Powershift plus compensation of

shift ratio gap

Powersplit gear reverse

1st powersplit gear forward

2nd powersplit gear forward

Hydrostatic gear

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Output Speed

Fully automated drivetrain Hydro-mechanical solution maximizing the advantages of both hydrostatic and mechanical elements. Patented planetary system combined with a closed-loop hydrostatic variator. Always in the „perfect gear“ for peak operating efficiency. Vehicle speed decoupled from engine and implement speed.

Significant improvement in safety and mobility Permanent torque flow between engine and wheels when driving uphill as well as downhill due to continuous control of output torque and output speed. Combustion engine can be used to slow down the vehicle until standstill even without activating the brake - no brake overheating. Smooth vehicle start up at very low engine speed possible.

Drivetrain protection and optimized performance No engine overspeeding No overheating No clutch burning No engine stalling Engine operated in optimum conditions Kick-down function to achieve maximum vehicle acceleration

Best driving comfort No torque inconsistencies or interruptions during acceleration and deceleration. Fully-automated drivetrain. High vehicle speed at low engine speed. Cruise control integrated.

Applications- Agric tractors - Municipal Vehicles - High Mobility Vehicles - Forestry machines - Telehandler - Sweepers - RoRo trucks - Garbage collectors - City buses

Benefits

Photo Harbour: Xuejingwen | Dreamstime, Garbage Collection: OscarWhity | Fotolia

The figure depicts the rotational speed relationship in a VTP transmission with a pure hydrostatic travel area at low speed and two powersplit ranges for forward travel and one powersplit range for reverse travel.

Output speed

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1. VTP450 Modular System

Two speed gear module covering all mechanical components to achieve CVT function. Input and output related gear sets and variators to be selected and adapted according to customer specific request.

VTP450 Module Transmission version 1RH1F H2F

Rated input speed up to 3600 rpm

Rated input torque 450 Nm (330 ft-lbs)

Maximum output torque 1700 Nm (1250 ft-lbs)

Rated input power 110 to 125 kW (150 to 170 hp)depending on operating profile

Transmission ratios -1,75 rev to 1,79 fwd -3,17 rev to 0,47 fwd

Dry weight 74 kg 72 kg

Hydropump / Hydromotor e.g. Bosch Rexroth A4VG28, A4VG45, A4VG65A2FM28, A2FM45, A6VM55

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High Stufe Low Stufe Traktor 50 km/h Traktor

v ETA

-30,28025349332730,811326621884171

-30,28025349332730,811326621884171 v ETA v ETA

-30,28025349332730,811326621884171 -15,14012674666360,831326621884171 -25,23354457777270,831326621884171

-30,28025349332730,811326621884171 -15,14012674666360,831326621884171 -25,23354457777270,831326621884171

-28,9177839089120,819033448293243 -15,14012674666360,831326621884171 -25,23354457777270,831326621884171

-27,55759868985590,826829363888193 -15,14012674666360,831326621884171 -25,23354457777270,831326621884171

-26,20207544245740,829161201260013 -14,4588919544560,839033448293243 -24,09815325742670,839033448293243

-24,84907412171480,832348607457438 -13,77879934492790,846829363888193 -22,96466557487990,846829363888193

-23,49907758397980,836473931849805 -13,10103772122870,849161201260013 -21,83506286871450,849161201260013

-22,1542481591650,834424016647636 -12,42453706085740,852348607457438 -20,70756176809560,852348607457438

-20,8130021462630,836782333276309 -11,74953879198990,856473931849805 -19,58256465331650,856473931849805

-19,47875947198750,831223451815806 -11,07712407958250,854424016647636 -18,46187346597080,854424016647636

-18,1493770399216 0,83 -10,40650107313150,856782333276309 -17,34416845521920,856782333276309

-17,4879857833843 0,828 -9,739379735993730,851223451815806 -16,23229955998950,851223451815806

-16,8303876170378 0,825 -9,07468851996081 0,85 -15,1244808666013 0,85-16,1692376451612 0,824 -8,74399289169213 0,848 -14,5733214861535 0,848-15,509010165305 0,823 -8,4151938085189 0,847 -14,0253230141982 0,847-14,19439811450470,810731479092133 -8,08461882258061 0,845 -13,474364704301 0,845

-7,75450508265249 0,843 -12,9241751377542 0,843-7,097199057252370,830731479092133 -11,82866509542060,830731479092133

14,99195198558970,829427197744076 -6,446183293096060,817226218649914 -10,74363882182680,817226218649914

16,3086919319414 0,86 -5,800144370933160,7899571089519 -9,66690728488860,7899571089519

16,9698123498461 0,863 -5,162129606251020,762595965278172 -8,60354934375170,762595965278172

17,6318346464206 0,866 -4,531376467288410,724347683539409 -7,552294112147350,724347683539409

18,2903287964228 0,87 -3,910884837767040,680096937951368 -6,51814139627840,680096937951368

18,952418280405 0,87220,2828385834257 0,87221,6180060124617 0,87 -3,897159011314460,74054334390618 -6,495265018857430,74054334390618

22,9598371067959 0,866 -3,897159011314460,74054334390618 -6,495265018857430,74054334390618

24,30512886084 0,86 -3,897159011314460,74054334390618 -6,495265018857430,74054334390618

25,6554334852642 0,85 -3,897159011314460,74054334390618 -6,495265018857430,74054334390618

27,00866878154840,839559718938874 -3,485573943434230,733919985896327 -5,809289905723720,733919985896327

28,36437242191350,836622944438071 -3,075085052314420,722496685802579 -5,125141753857370,722496685802579

29,72459216787220,828337350765389 -2,670896862015480,691257785111096 -4,45149477002580,691257785111096

31,08705583262710,820175940965296 -2,270099207677780,656782102967301 -3,783498679462960,656782102967301

31,08705583262710,820175940965296 -1,891749339731480,63947772779497 -3,152915566219130,63947772779497

31,08705583262710,820175940965296 -1,513399471785180,602396803915149 -2,522332452975310,602396803915149

31,08705583262710,820175940965296 -1,135049603838890,563730922010893 -1,891749339731480,563730922010893

-0,7566997358925920,500324095369114 -1,261166226487650,500324095369114

32,82219037536740,791072911555948 -0,3783498679462960,426978169155447 -0,6305831132438260,426978169155447

32,82219037536740,791072911555948 -0,1891749339731480,371024072429113 -0,3152915566219130,371024072429113

32,82219037536740,791072911555948 -0,03783498679462960,212676059721582 -0,06305831132438260,212676059721582

32,82219037536740,791072911555948 0,0003783498679462960,0323626840016319 0,0006305831132438260,0323626840016319

34,17012146691150,800851208359241 0,03783498679462960,212749687840024 0,06305831132438260,212749687840024

35,52016211107080,810296089535865 0,1891749339731480,371280758476626 0,3152915566219130,371280758476626

36,87167065534630,817514177082761 0,3783498679462960,427326040837609 0,6305831132438260,427326040837609

38,22521632604110,825171164445323 0,7566997358925920,500812467200424 1,261166226487650,500812467200424

39,58053400913890,833194198385272 1,135049603838890,564359937990528 1,891749339731480,564359937990528

40,93691299669790,837438987695265 1,513399471785180,603120320399112 2,522332452975310,603120320399112

42,29507206074980,843620185945408 1,891749339731480,640298089299921 3,152915566219130,640298089299921

43,6544345935140,847445483239948 2,270099207677780,657649742566977 3,783498679462960,657649742566977

45,015303064780,857210353157223 2,670588718814050,692108053559079 4,450981198023410,692108053559079

45,69603910481760,85911751273734 3,07469988164630,723588224303486 5,124499802743830,723588224303486

46,3770681002820,860609764133821 3,485114739921110,735260210098113 5,808524566535190,735260210098113

47,05501789139880,85911803760179 3,896624800599740,74212957612821 6,494374667666240,74212957612821

47,73343663839890,854213299479372 3,896624800599740,74212957612821 6,494374667666240,74212957612821

49,09161939971030,844062042436336 3,896624800599740,74212957612821 6,494374667666240,74212957612821

50,45085875017010,841722445392912

51,81157756676910,836294054103057

53,1732262328970,833151296065841 6,145173000358030,671538113268925

54,53647157344250,82603000446962 3,687103800214820,671538113268925 7,164986070574860,717480085211885

55,90076798050480,819242149122965 4,298991642344920,717480085211885 8,204052498472580,756147653091462

57,26603042447420,812710789785678 4,922431499083550,756147653091462 9,259450951990060,789939037849532

58,63255328502360,804558268925861 5,555670571194040,789939037849532 10,3263495881610,813691306945139

60 0,796414560311409 6,19580975289660,813691306945139 11,40589003189180,838041869910811

6,843534019135090,838041869910811 12,49329332132480,849427197744076

7,495975992794870,849427197744076 13,5905766099512 0,868,1543459659707 0,86 14,1415102915385 0,8638,48490617492307 0,863 14,6931955386838 0,8668,81591732321028 0,866 15,2419406636857 0,879,14516439821141 0,87 15,7936819003375 0,8729,47620914020252 0,872 16,9023654861881 0,87510,1414192917129 0,875 18,0150050103847 0,8710,8090030062308 0,87 19,1331975889966 0,87211,4799185533979 0,872 20,25427405070,867709414462169

12,152564430420,867709414462169 21,37952790438680,863384833227519

12,82771674263210,863384833227519 22,50722398462370,859559718938874

13,50433439077420,859559718938874 23,63697701826130,856622944438071

14,18218621095680,856622944438071 24,77049347322680,848337350765389

14,86229608393610,848337350765389 25,90587986052260,840175940965296

15,54352791631360,840175940965296 25,90587986052260,840175940965296

15,54352791631360,840175940965296 25,90587986052260,840175940965296

15,54352791631360,840175940965296 25,90587986052260,840175940965296

15,54352791631360,840175940965296

27,35182531280620,811072911555948

16,41109518768370,811072911555948 27,35182531280620,811072911555948

16,41109518768370,811072911555948 27,35182531280620,811072911555948

16,41109518768370,811072911555948 27,35182531280620,811072911555948

16,41109518768370,811072911555948 28,47510122242630,820851208359241

17,08506073345580,820851208359241 29,6001350925590,830296089535865

17,76008105553540,830296089535865 30,72639221278860,837514177082761

18,43583532767320,837514177082761 31,85434693836760,845171164445323

19,11260816302050,845171164445323 32,98377834094910,853194198385272

19,79026700456940,853194198385272 34,11409416391490,857438987695265

20,46845649834890,857438987695265 35,24589338395810,863620185945408

21,14753603037490,863620185945408 36,3786954945950,867445483239948

21,8272172967570,867445483239948 37,51275255398340,877210353157223

22,507651532390,877210353157223 38,080032587348 0,87722,8480195524088 0,877 38,647556750235 0,87823,188534050141 0,878 39,212514909499 0,87723,5275089456994 0,877 39,7778638653324 0,87523,8667183191994 0,875 40,90968283309190,864062042436336

24,54580969985510,864062042436336 42,04238229180840,861722445392912

25,2254293750850,861722445392912 43,17631463897430,856294054103057

25,90578878338460,856294054103057 44,31102186074750,853151296065841

26,58661311644850,853151296065841 45,44705964453540,846030004469621

27,26823578672120,846030004469621 46,58397331708740,839242149122965

27,95038399025240,839242149122965 47,72169202039510,832710789785678

28,63301521223710,832710789785678 48,8604610708530,824558268925861

29,31627664251180,824558268925861 50 0,816414560311409

30 0,816414560311409

Driving speed [kph]

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Driving speed [kph]

Low Range

High Range

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Driving speed [kph]

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High Range

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2. VTP Agric Tractors

Compact version 1RH2F

Version 1RH2F Standard tractors ≤ 80 kW

Agric tractors > 80 kW Version 1RH2F-HL High/Low range group at transmission output

Performance data

Input Power

Tractor GVW

Drawbarpull

TransmissionVersion

Max. speedforward

Max. speed reverse

Hydro-pump

Hydro-motor

VTP-TR80 80kW (110 HP) 7500 kg 70 kN 1RH2F 50 kph 28 kph 45 cc 45 cc

VTP-TR90 90 kW (120 HP) 8500 kg 72 kN 1RH2F-HL 50 kph 29 kph 45 cc 45 cc

VTP-TR120 120 kW (163 HP) 10000 kg 95 kN 1RH2F-HL 50 kph 27 kph 75 cc or85cc

75 cc or85cc




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Driving speed [kph]

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VTP500 1RH2F / H2F 4WD short Transmission version 1RH2F H2F





Transmission ratios *) -1,29 rev to 0,73 fwd -5,64 rev to 0,73 fwd


Engine flange SAE4

Hydropump / Hydromotor Bosch Rexroth 45/45 back to back

Differential 50 / 50 mechanical diff lock

PTO optional drive through PTO available

3.1 VTP500 4WD short

Version 1RH2F or H2F Hydros integrated into transmission housing Dry sump lubrication

*) Output torque and transmission ratios depending on output gear set ratio. Output gear set may be adjusted to specific customer requirements.

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SAE 4 - flange (exchangeable on demand)

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3.2 VTP500 inline short

VTP500 1RH2F / H2F / H1F inline short Transmission version 1RH2F H2F H1F





Transmission ratios *) -1,74 rev to 0,98 fwd -7,59 rev to 0,98 fwd -7,59 rev to 1,74 fwd

Dry weight 169 kg 157 kg 147 kg

Engine flange SAE4


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Version 1RH2F, H2F or H1F Hydros integrated into transmission housing Dry sump lubrication


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3.3 VTP500 4WD long

Version 1RH2F or H2F Hydros integrated into transmission housing Dry sump lubrication

VTP500 1RH2F / H2F 4WD long Transmission version 1RH2F H2F







Engine flange SAE4



PTO optional PTO available at 12 and 3 o‘clock position


1085

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1085

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1085

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1085

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3.4 VTP500 Electric Variator long

Version 1RE2F or E2F Electric variator integrated into transmission housing

Additional functionso Energy recuperation at breakingo Provide (more) electric power for implements, also at stand stillo Silent moving in pure electric drive mode (depending on installed battery capacity)

VTP500 1RE2F / E2F 4WD long Transmission version 1RE2F E2F







Engine flange SAE4

Generator / E-Motor Nominal power 40 kW / 400 V


PTO optional PTO available at 12 and 3 o‘clock position


G M

Inverter

Inverter

Accumulator

G M

Inverter

Inverter

Accumulator

1085

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1085

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1085

49

4

52

2

4 54

16

1

1 79

75

1085

49

4

52

2

4 54

16

1

1 79

75


Pho

to: V

DS


14

3.5 VTP500 Transaxle

Version 1RH2F or H2F - Hydrostatic variator Version 1RE2F or E2F - Electric variator Axle drive and differential included

VTP500 Transaxle 1RH2F / 1RE2F Transmission version 1RH2F 1RE2F



Maximum output torque 3000 Nm (2140 ft-lbs) 2500 Nm (1840 ft-lbs)




Engine flange SAE3

Variator Bosch Rexroth 45/45 back to back Nominal power 40 kW / 400 V

PTO optional PTO available at 2 o‘clock position


82

1071

50

8

828SAE 3 - flange (exchangeable on demand)

45

4

454

Hydrostatic variator Electric variator


15

3.6 VTP500 Telehandler

Version 1RH2F and 1RH2F-HL Hydros integrated into transmission housing

Performance data

Input Power

Drawbarpull

TransmissionVersion

Max. speedforward

Max. speed reverse

Hydro-pump

Hydro-motor

VTP-TH75 75 kW (102 HP) 70 kN 1RH2F 40 kph 25 kph 45 cc 45 cc

VTP-TH110 110 kW (150 HP) 100 kN 1RH2F-HL 50 kph 30 kph 45 cc 45 cc

Pho

to: M

akau

le |

Dre

amst

ime


16

4. VTP1750

Versions 1RH1F-SI or H2F-SI Inline version Dry sump lubrication PTO drives available

VTP1750 1RH1F-SI / H2F-SI Transmission version 1RH1F-SI H2F-SI

Rated input speed 2000 to 2300 rpm



Rated input power 300 kW (408 hp)depending on operating profile



Engine flange SAE2

Hydropump / Hydromotor e.g. Bosch Rexroth A4VG110 / A6VM115

PTO i = 0,69 / 950 Nm (700 ft-lbs) 300 kW


SAE 2 - flange

88

371

1

965

870.25

82

3

88

371

1

965

870.25

82

3

88

371

1

965

870.25

82

3

88

371

1

965

870.25

82

3


17

4. VTP1750

VTP1750 1RH1F-SIHL / H2F-SIHL Transmission version 1RH1F-SIHL H2F-SIHL



Maximum output torque - Low RangeMaximum output torque - High Range

8800 Nm (6500 ft-lbs)5400 Nm (4000 ft-lbs)

Rated input power 300 kW (408 hp)depending on operating profile

Transmission ratios - Low Range *)Transmission ratios - High Range *)

-1,35 rev to 1,35 fwd-0,84 rev to 0,84 fwd

-3,95 rev to 0,79 fwd-2,44 rev to 0,49 fwd


Engine flange SAE2


PTO i = 0,69 / 950 Nm (700 ft-lbs) 300 kW


Versions H2F-SIHL or 1RH1F-SIHL Inline version Dry sump lubrication PTO drives available


18

5. VTP1500Shredder

proven powersplit technology in new application

Version: H1F

o Pure hydrostatic drive around zero speed - wear free start and reversing of the shredding shaft

o Shift from hydrostatic drive to power split drive at synchronous speeds by wet friction clutches

o Quick stop by spring released clutches

o Highly efficient power split in main operating points

Gain a benefit of more than 10% in efficiency to pure hydrostatic drive

VTP1500 H1F Shredder Transmission version H1F



Maximum output torque (output to final planetary gears) 8800 Nm (6500 ft-lbs)

Rated input power 260 kW (350 hp)

Transmission ratios (output to final planetary gears) *) -5,73 rev to 1,99 fwd

Hydropump / Hydromotor e.g. Bosch Rexroth A4VG110 / A6VM115 or Compact unit 110/90

PTO i = 0,69


Driveline scheme

Transmission layout

Transmission efficiency vs output speed

Walzendrehzahl [1/min]Eta VTP-Getriebe

-13,88832046255070,678577848748875

-11,3337329547560,702485892024296

-9,572903531689770,715139415056257

-8,285659359034150,716081323314485

-7,404727215672520,6961514520017

-6,564270179738010,686899436340451

-5,743736407270760,669827035273989

-4,923202634803510,652494618431275

-4,102668862336260,634756665699928

-3,282135089869010,601809661620885

-2,461601317401760,567830281636644

-1,64106754493450,499797362475065

-0,8205337724672520,425820125490994

-0,4102668862336260,376688363438825

-0,08205337724672520,225169031960007

0,0008205337724672520,00312215721167154

0,08205337724672520,225852744933819

0,4102668862336260,378605747859673

0,8205337724672520,428271928534125

1,64106754493450,503178445035712

2,461601317401760,57219850720578

3,282135089869010,606718584860557

4,102668862336260,640220234969978

4,923202634803510,658269196458635

5,743736407270760,675913902644155

6,564270179738010,693297697285348

7,399839259158530,700755928488442

8,279957310517020,721898237533607

8,871451117105230,721833435698137

9,55397957001930,72173725445257

10,35031645501540,721597377172704

7,70918053617970,678489645451818

9,036403366299530,722316384224354

10,33303045055510,767311336116217

11,63909047008890,800212622718148

12,96200213554990,83242078776116

14,29574358919470,850556859718796

15,6436242963002 0,87 0,882136733266064

16,3211155319123 0,875 0,90678740001718

16,9997403470186 0,876 0,927210062000091

17,6729459464589 0,876 0,90279530907846

18,3518045180398 0,876 0,88146572727726

19,7185019652616 0,872

21,09166053833390,872553384672789

22,47412007615340,869800390644394

23,86132969701410,871641822834903

25,25501849913080,868309503831402

26,65251562321670,866456369837865

28,05321108870230,865705412820418

29,46035734821120,85858749754033

30,87022833656850,852180783546641

32,98256963734330,846037973025453

35,85980473250360,831698332797949

40,01558017855140,806939515426354

Tra

nsm

issi

on

eff

icie

ncy

Output speed

Pho

to: J

ohn

Mcn

amar

a | D

ream

stim

e

Output speed

Tra

nsm

issi

on e

ffici

ency


19

The Variable Power Divider VPD is a transmission module installed between the combustion engine and the standard transmission of a vehicle powertrain. The purpose of the design is to enable driving at various speeds, while the PTO is being driven with a constant speed to power auxiliaries. By using the functional principle of hydrostatic–mechanical powersplit it provides variable output speed to the standard transmisson while keeping the PTO at optimum operating conditions. So VDP eliminates the need for a second, „pony“, engine to drive implements.

VPD expands your standard driveline to a continuously variable driveline.

Benefits

o Wear-free variator system

o All functions controlled electronically

o Very easy to operate

o Less driver training needed - cost advantage

o Higher work output by optimal driving speed

adaptation to implement work condition

o Fully automatic transition from drive-mode to

work-mode and back

o Best efficiency due to small hydros

o „Overdrive-function“ available to reduce input

torque to standard transmission

o Stepless control of vehicle speed while keeping

the engine and PTO speed constant

VPDVariable Power Divider

Functionalities

Drive mode: The engine to transmission drive ratio remains at a defined ratio at all times in this mode. The accelerator pedal func-tions normally and its position can be used for shift modulation as usual. Speed increase from engine to transmission input may help to reduce torque in the main transmission if requested.

Work Mode: The engine speed is being controlled via a turn knob in the dashboard. The VPD control unit controls the engine speed. The accelerator pedal controls the engine to transmission drive ratio, and thus influences the vehicle speed proportionally.

-6000

-4000

-2000

0

2000

4000

6000

1000 1200 1400 1600 1800 2000 2200 2400 2600 2800

Rot

atio

n sp

eed

com

pone

nts

[rpm

]

Output speed [rpm]

MechanicalPower

(constant speed)

Variatorpower(variable speed)

Output(variable speed)


20

Performance data Transmission version VPD2500

Rated input speed 2600 rpm



Transmission ratios 2,23 to 1,01

Hydropump / Hydromotor e.g. Bosch Rexroth A4VG28 / A2FM28

PTO ratio i = 0,71

PTO Power 100 kW (136 hp)

Flange to engine SAE3

Flange to transmission SAE3

1 VPD2500

o Fully autonomous transmission module between engine and automatic transmission

o 1:1 ratio in drive mode

o Variable ratio from engine to transmission input in work mode

o Easy to operate

o PTO speed adjustable for optimum cleaning process; Vehicle speed controlled by foot throttle or cruise control function

o Wear free variator system

o No need for an additional, auxiliary engine to drive implements

o Best efficiency due to small hydro units

Pho

to: R

ob W

ilson

| D

ream

stim

e


21

2 VPD4000

o Fully autonomous transmission module between engine and automatic transmission

o Overdrive function in drive mode

o Variable ratio from engine to automatic transmission input in work mode

o Very easy to operate

o Fully automatic transition from drive mode to work mode

o PTO always operates at optimum pump speed

o Vehicle speed controlled by foot throttle

o Wear free variator system

Performance data Transmission version VPD4000

Rated input speed 2100 rpm



Transmission ratios 1,8 to 0,71


PTO ratio i = 0,49

PTO Power 300 kW (410 hp)

Flange to engine SAE1

Flange to transmission SAE1

Pho

to: S

tefa

nie

Win

kler

| D

ream

stim

e


22

VDS Getriebe GmbH, located in Wolfern near Steyr in Austria, has specialized in the development of innovative driveline systems for working machines.

The team of specialists, well experienced in developing CVTs from conceptual studies to mass production, works out innovative solutions in latest driveline technology.

In addition to engineering services, VDS supplies powersplit components up to complete CVT systems for niche markets.

Don‘t hesitate to get in touch with VDS to find a solution for your specific driveline request.

Impressum

© 2015 Content; VDS Getriebe GmbH,

Gewerbepark 6, 4493 Wolfern, Austria.

Layout: startbox.at

Printing and setting errors reserved.

24

VDS Getriebe GmbHGewerbepark 6|4493 Wolfern/Steyr | Austria

Phone: +43 7253 88080-0 | Fax: +43 7253 88080-50e-Mail: [email protected] | Web: www.vds-getriebe.at

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