Experiences and visions of an implement · PDF fileExperiences and visions of an implement manufacturer ... Silver for AXERA H ... Gold for the CCI Terminal AXIS EDR Club of Bologna

Electric drives in agricultural machineryElectric drives in agricultural machinery

Experiences and visions

fof an

implement manufacturerp

Norbert Rauch, Rauch Landmaschinenfabrik GmbH, Sinzheim

Club of Bologna 13.11.2010 1

• RAUCH Landmaschinenfabrik GmbH- a family company

• State of the art – Motivation for a new drive

• Conventional Power Transmission vs. Electrical Interface

• Example: RAUCH-Twin-disc fertiliser spreader

• Potential electric drives for different agricultural machinery

• Summary, prospects and visionSummary, prospects and vision


RAUCH Landmaschinenfabrik GmbH

Founded in 1921F il d t i 100 %Family owned enterprise 100 %Turnover 2009/10 43 Mio. €Export share 65 %Export share 65 %Staff 310Students 25Students 25

Shareholders & executives:

Hermann Rauch Joachim RauchJoachim Rauch Norbert Rauch


RAUCH sites

Administration still in Sinzheim,the old production halls are nowdestroyed

New production site at the Baden-Airpark


p

RAUCH Innovations

1999-2009: 10 Years, 10 Medals

Gold for AXERA-H EMC Silver for AXERA H

Silver for AGT Spreader

Silver for AXERA-H

Gold and Silverfor AXIS

G ld f th CCI T i l

Gold für AXIS EDR

Gold for the CCI Terminal

AXIS EDR


RAUCH “care for grain”

Core competence:

Metering and Distributing f

p

ofgrains

• Mineral Fertilizer • Seed

S lt S d G it


• Salt, Sand, Grit

RAUCH the Range of Success

Fertilizerspreaders:Disc- /Boomtechnology

Seedtechnology


Wintertimespreaders

State of the art – Motivation for a new drive

M h i l D iMechanical Drives• Fixed relationship with the tractor engine speed• difficult power distribution on complex agricultural machinery• difficult power distribution on complex agricultural machinery

Pro: High power density and robustness

Hydraulic Drives• Unfavourable efficiency, high oil heating levelsy, g g• Limited speed regulation options• Potential for oil leakage

Pro: High force density


State of the art – Motivation for a new drive

Electrification of agricultural machinery offers another g yinnovative interface:

Optimum controllability• Optimum controllability• Good power density with gearbox • Simple power distribution across complex agricultural machineryS p e po e d st but o ac oss co p e ag cu tu a ac e y• Reliability in agricultural application• Combination with navigation and automation

An innovative solution for higher productivity, safety and convenienceand convenience

We have to learn about all the opportunities!


Hydraulic interface vs. electrical interfacey

Electrical power interfaceThe principle is still the same

ConverterDC

AC ConverterDC

power interfaceThe principle is still the same

Tractor = Power sourceACTractor = Power source

Generator = Hydraulic pumphydraulic

Pump

Control block

Generator = Hydraulic pump

Frequency converter = "Electrical control block"Hydraulic po er interface

- Consistent interfaceUniversal application

Frequency converter = Electrical control block


power interface - Universal application

Alternative Architectures

Generator on the implementGenerator on the implementRegulation and distribution on the implement= scenario for "old" tractors

ConverterConverter

Important: Compatibility of the architectures!PTO

Converter

Important: Compatibility of the architectures!"Standardisation"

"Large" number of drives on the implement:Generator on the tractor + Regulation


Ge e ato o t e t acto egu at oand distribution on the implement

Twin-disc fertiliser spreader with hydraulic drive

Spreader adjustment can be set Right/Left independentlyg p y• Disc speed- low controllability• Spreading point• DosageDosage

Automatic fertiliser flow regulation:• Speed sensor on the spreader discsp p• Pressure sensors on the hydraulic motors• Return pressure sensor- sensors needed

250

300

350

400

min]

bar

0

50

100

150

200

250

0 10 20 30 40 50 60

Mass

flow

[kg/

m


Pressure difference [bar]

Spreading Technology of Twin Disc Fertilizer spreadersSpread pattern and overlappingSpread pattern and overlapping

Streubreite 56 m

0 06

0.07

richt

ung

36 m

Schiefes Vorgewende

0.03

0.04

0.05

0.06

amtlä

nge

Stre

ubild

in F

ahrtr

30 m

30 -400

0.01

0.02

Ges

60

80

100

enge

, %

Keil

-20-10

010

2040

-30

-20

-10

0

-30 -20 -10 0 10 20 300

20

40

S treubreite , m

Dün

germ

C t ll bilit f di d i d d-30 10 Fahrtrichtung, mStreubreite, m

Vorgewende

Controllability of disc speed is needed


Step response: hydraulic vs electrical drive of a spreader discStep response: hydraulic vs. electrical drive of a spreader disc

Step response - Spreader disc speed hydraulic vs. electrical main driveStep response - Spreader disc speed

hydraulic vs electrical main driveStep response - Spreader disc speed

hydraulic vs electrical main drive

900

target speedresponse hydraulic drivenresponse electric driven

hydraulic vs. electrical main drive

900target speedresponse hydraulic driven

hydraulic vs. electrical main drive

900target speedresponse hydraulic driven

pm]

600rpm

]

response electric driven900

pm]

response hydraulic drivenresponse electric driven

600

c sp

eed

[rp600

sc s

peed

[r 600

c sp

eed

[rp

300disc300di

300disc

0

00 2 4 6 8 10

time [sec ]

025 27 29 31 33 35


0 5 10 15 20 25 30 35

time [sec.]

time [sec.]time [sec.]

Twin-Disc Fertiliser Spreader With Electric Drive

1. No sensors needed2 Torque measurement

12 V Eccentricagitator drive17 RPM

Disc drive900 RPM

2. Torque measurement= Current/Voltage

Disc drive

17 RPM900

Disc drive 900 RPM

Gearbox5,5:1 480 V motor

Gearbox

5 5:1

5000 RPM 480 V motor5000 RPM


5,5:1

RAUCH EDR Twin-Disc Fertiliser Spreaderp

80

"Neat and tidy"“coupling area70

80

50

60

%]Very good efficiency with optimum setting options

30

40

effic

ienc

y [

20

30e

electrical spreaderhydraulic spreader at Power Beyond

6 8 10 12 14 16 18 20 22 24 260

10

hydraulic spreader at Power Beyondhydraulic spreader at SCVmechanical spreader


disk torque [Nm]

Prospects for AGT Pneumatic Fertiliser SpreaderWorking Width 36m - GPS-ControlledWorking Width 36m - GPS-Controlled

Hydraulic fan drive with PTO-driven pump

Oil container with cooling

p p

Very low efficiency of the hydraulic drive

Hydraulic cam wheel drive6 hydraulic motors


y

Prospects for a pneumatic seed drill

Hydraulic fan drive


12 V metering device drive


12 V metering device drive

Hydraulic push-fit pump


… continue on the ”proved and tested" path?


… or an "integrated solution" as a vision for the future

Easy operator input via the ISOBUS display


y p p p y

Summary and Prospects

Electric drives open up new perspectives for agricultural machineryElectric drives open up new perspectives for agricultural machinery

• Drives precisely regulated on an as-required basis

• Increased system level efficiencies

R d d ti f f il f l (di l h d li il)• Reduced consumption of fossil fuels (diesel, hydraulic oil)

• Easier power distribution

• Safe and fast coupling of attachable and towed agricultural machinery

O ti i d ti i th ISOBUS t i l• Optimised operation using the ISOBUS terminal



Introduction of "electric" tractor/machinery combinations

• The advantages of electrification will increase the amount of available agricultural machinery

• Electrification will optimise processes and reduce energy• Electrification will optimise processes and reduce energy requirements and consumption.

• Coordinated development of a consistent interface is requiredCoordinated development of a consistent interface is required

(the hydraulic interface is a desaster!)

• Interim scenarios must make it possible to efficiently use electric p yagricultural machinery with older tractors too.



High degree of potential for self-propelled agricultural machineryHigh degree of potential for self propelled agricultural machinery

Optimum and easy power distribution

Energy-saving drives and regulated in an optimum way

Electric drives, satellite navigation and automation

Unknown new options for process optimisationUnknown new options for process optimisation

Reduction in the costs of agricultural products

Increase in productivity in agricultural production


Visions in future machine generations for agriculture

• Agriculture is the pioneer in production and use of renewable energies. g p p g

• Every farm will produce its own electric energy.

• Storage of energy by batteries will be simple, reliable and cost-efficient.

• The self-produced energy will be used in all electrical agricultural• The self-produced energy will be used in all electrical agricultural machines and tractors

M d l t i i f ti d b d t l t ill• Modern electronic information- and sensor-based control systems will provide a highly efficient and sustainable production.

• Maintenance, extended life-time of machines and recycling will save also not renewable materials.


Vision 2030-2040-2050

• Tramlines used to add underground power lines for vehicles batteries and the agricultural processesvehicles, batteries and the agricultural processes

• Wireless power supply with conducting paths between the tramlines “Controlled traffic” via electromagnetic inductionelectromagnetic induction

• Sustainable power supplies, e.g.wind power, could be used, in particular in the field`s proximity


Vision 2030-2040-2050

• Is there a path leading to future agricultural systems working in a field and state-of-the-art tram lines today?

• WEB-Site from Bombardier.com:• The PRIMOVE`s outstanding feature:• Safe and contactless inductive power transfer.Safe and contactless inductive power transfer.• Supply components invisible hidden in the vehicle and underneath

the track. R li bl d i t t• Reliable and wear resistant

• Operates in all weather and ground conditions• Power levels from 100 kW to up to 500 kW


pLet`s think beyond

"The question is no longer if electric drives q gwill come into use in agriculture;b t thbut rather, how quickly this will take place "how quickly this will take place.


28

RAUCH Landmaschinenfabrik GmbH • Landstraße 14 • 76547 Sinzheim • www.rauch.de

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Experiences and visions of an implement · PDF fileExperiences and visions of an implement manufacturer ... Silver for AXERA H ... Gold for the CCI Terminal AXIS EDR Club of Bologna