DIE NEUE OTTOMOTORENFAMILIE VON BMW.
68
FH Joanneum 6. April 2016 WOLFGANG MATTES, BMW GROUP. DIE NEUE OTTOMOTORENFAMILIE VON BMW.
Transcript of DIE NEUE OTTOMOTORENFAMILIE VON BMW.
FH Joanneum
6. April 2016
WOLFGANG MATTES, BMW GROUP.
DIE NEUE OTTOMOTORENFAMILIE VON BMW.
Baukasten
Ottomotorenfamilie
i8 Motorisierung
Efficient Dynamics und Elektrifizierung
Ausblick
DIE NEUE OTTOMOTORENFAMILIE VON BMW.
INHALT.
HERAUSFORDERUNGEN.
Uneingeschränktes
Bedürfnis nach individueller
Mobilität
Weltweit weitere
Verschärfung der
EmissionsgrenzwerteWeltweit zunehmende
Anspannung bezüglich
CO2 Ausstoß
Neue und weltweit
unterschiedliche
Testzyklen
Weltweit unterschiedliche
Energieträger
(Benzin, Diesel, Erdgas,
Wasserstoff, Alkohol)
Zunehmend härterer
Wettbewerb in allen
Fahrzeugsegmenten
Zunehmende
Urbanisierung
Ausgeprägte
Diversifizierung von
Fahrzeugvarianten
Weltweit
unterschiedliche
Kraftstoffqualitäten
Zunehmend volatiles
wirtschaftliches
Umfeld
60
80
100
120
140
160
180
200
220
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
CO
2-l
imit
for
light
-dut
yve
hicl
es [
g C
O2/k
m]
mid-term long-term
NEDC, FTP, etc.
Transition
WLTP, RDE
Target
2015
Target
2020
(estimated)
Target
2025
(estimated)
Source: IEA, ICCT
WELTWEITE GESETZLICHE CO2-/VERBRAUCHS- UND EMISSIONS-ANFORDERUNGEN.
REAL DRIVING EMISSIONS (RDE) ZUM NACHWEIS DER EMISSIONSGRENZ-WERTE IM NORMALEN FAHRBETRIEB AUF DER STRASSE.
Herausforderungen: - Enorme Varianz der Randbedingungen Messungen sind nicht reproduzier- und vergleichbar.
- Geringe Zeit zwischen Definition Gesetz und Inkrafttreten.
2015 2016 2017 2018 2019 2020 2021
RDE Stufe 1CF*=2,1
RDE Stufe 2CF=1,0 + 0,5**
MonitoringKeine Grenzwerte
01/16 09/17 09/19 01/20 01/21
Gesetzgebungsprozess EU
Alle Typen
Neue Typen
Paket 1: Prinzipielle Verankerung RDE
Paket 2: Testrandbedingungen und Regulierung NOx
Paket 3: Regulierung Kaltstart und PHEV, sowie Transferfunktion
Paket 4: In-Use-Conformity
*) CF: Conformity Factor; Grenzwert RDE = EU6c Grenzwert * CF **) Aufschlag aufgrund Messunsicherheit der mobilen Messtechnik
REVOLUTION
EVOLUTION
Internal combustion engine
Hybrids
E-Mobility
Technological change
We have to improve our existing technologies
and invest heavily in new technologies
to remain future proof.
EINFÜHRUNG NEUER TECHNOLOGIEN.
VOLUME SHARE DEVELOPMENT OF DIFFERENT POWERTRAIN CONCEPTS.
Sources: United Nations, Global Insight,
Credit Suisse, BMW-Calculations.
2050
0
200
400
600
800
1.000
1.200
1.400
1.600
1.800
2.000
2000 2010 2020 2030 2040
Mio
. Uni
ts -
wor
ldw
ide
ICE HEV PHEV BEV
PROGNOSIS
Continuous growth of electric concepts.
Trend towards Downsizing of ICEs.
Further increase of concepts including combustion engines until 2030+.
ICE: Downsizing
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.OBJECTIVES.
New Engine
Familiy
Technologies Vehicles
Page 9
NEW EFFICIENT DYNAMICS ENGINE FAMILY.TARGETS.
SYNERGIES
CONTAINMENT
VARIANT FLEXIBILITY
VEHICLE INTEGRATION
COSTS
COMMON VEHICLE
SCALE EFFECTS
INTERFACE
SCALE EFFECTS
STRATEGY LEADERSHIP
PRODUCTION FLEXIBILITYQUALITY IMPROVEMENT
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.OBJECTIVES.
- Specific power output up to 115 kW/dm3.
- High low-end torque at speeds just above
idle speed.
- Low fuel consumption during customer
operation and in certification drive cycles.
- Compliance with the strictest exhaust
emission limits worldwide.
- Maximal production flexibility
(gasoline/ diesel, 3-/ 4-/ 6-cylinder) across a
number of production facilities.
- Simple and rapid construction of derivatives.
- Uniform vehicle interfaces for all variants.
New engine family with
TwinPower Turbo Technology
• 3 Cylinder Engine
• 4 Cylinder Engine
• 6 Cylinder Engine
Combustion Chamber:
• Optimal size 500 ccm
• Central injector
• Minimized friction
Different aspects for Gasoline/Diesel:
• Cylinder head elements
• Combustion process
Approximate range of torque and
power per cylinder:
• Gasoline: 60-100 Nm, 30-60 kW
• Diesel: 75-100 Nm, 20-40 kW
BMW EFFICIENT DYNAMICS.DIE NEUE BMW MOTORENFAMILIE.
EINBAULAGE UND EINBAUWINKEL IDENTISCH
FAHRZEUGSCHNITTSTELLEN IDENTISCH
3-ZYLINDER-BENZINMOTOR 3-ZYLINDER-DIESELMOTOR
DIE NEUE BMW MOTORENFAMILIE. GEMEINSAME SCHNITTSTELLEN DER MOTOREN IM FAHRZEUG.
Varianten-Management:
• 3-/4-/6-Zylinder
• quer / längs
• Leistungsstufen (uL, mL, oL, TOP)
• FWD / RWD / AWD
• Verbrenner / PHEV
• ECE / US (Emissionsstufen)
• Heissland, Nordland, Ländervarianten,…
• race track
• Schlechtkraftstoff
• …modularer Baukasten
NEUE MOTORENFAMILIE.VARIANTENMANAGEMENT.
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.HIGH PORTION OF COMMON PARTS.
INLINE
CONCEPT IDENTICAL PARTS
DIESEL
3-CYLINDER 4-CYLINDER 6-CYLINDER
GASOLINE
> 60 %
> 60 %
Different parts gasoline - diesel
Common and synergy parts gasoline - diesel3
0 -
40
%
INLINE
CONCEPT IDENTICAL PARTS
DIESEL
3-CYLINDER 4-CYLINDER 6-CYLINDER
GASOLINE
> 60 %
30
-4
0 %
> 60 %
The new BMW Efficient Dynamics Engine Family.
transversal
longitudinal
3-Cylinder 4-Cylinder 6-CYLINDER
LONGITUDINAL
BMW 6-CYLINDER TRADITION.
FIRST BMW SIX -CYLINDER 1933
Engine displacement :1,2L
Power: 22 kW
BMW B303 1933
Power: 22kW
Weight: 850 kg
The new BMW Efficient Dynamics Engine Family.Map power & torque.
40
90
140
190
240
290
100 200 300 400 500 600
P [kW]
Md [Nm]
3-cylinder Low
3-cylinder Base
Predecessor 4-cylinder
3-cylinderTOP
Predecessor 6-cylinder
NEW 6-CYLINDER
NEW 4-CYLINDER.
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.3- AND 4-CYLINDER TWIN POWER TURBO GASOLINE ENGINE.
Cylinder 3 4
Deplacement [l] 1.2 1.5 2.0
Power
@ speed
75
4250
100
4500
170
5800
141
4700
Torque
@ speed
180
1400
220
1250
320
3700
280
1250
CO2 [g/km] 108* 105* 49** 133*
Emission Level EU6 EU6 EU6 EU6
* Mini ** BMW i8
Page 19
BMW EFFICIENT DYNAMICS.BMW TWIN POWER TURBO GASOLINE.
GASOLINE
VALVETRONIC HIGH PRECISION INJECTION SINGLE TURBO
TWIN-SCROLL TURBO
TWIN TURBO
VARIABILITY DIRECT INJECTION TURBOCHARGING
TWIN POWER TURBO
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.CRANKCASE CONSTRUCTION.
- Deep skirt crankcase design.
- Standardized interfaces on all crankcases of the 3-cyl. / 4-cyl. gasoline / diesel engines.
- Chain cover located on the flywheel end.
- AlSi7Cu3 with subsequent T6 heat treatment.
- Cylinder liner coating by means of wire arc spraying.
- Integrated balance shaft.
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.CRANKSHAFT DRIVE.
- Crankshafts made of forged C38+N.
- Inductively hardened bearing points.
- Dual-substance aluminum main bearings.
- Three-layer polymer coated connection rod bearing.
- Casted aluminum pistons.
- Forged balance shafts mounted on ball bearings.
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.CYLINDERHEAD.
- Construction in the same way for transverse and longitudinal application.
- 3-cyl. up to 100kW with lost foam cast cylinder head.
- 4-cyl. and 170kW 3-cyl. gravity die casted with AlSi7MgCu0.5.
- Identical chain drive position for 3-cylinder and 4-cylinder engines.
Reduction Heigth 52 mmPredecessor New Design
VALVETRONIC.
Enhanced 4th generation of BMW VALVETRONIC.
Significant reduction in the installation height by transposing the intake camshaft with the eccentric shaft.
Familiar industry modules are used for standard components as hydraulic valve play compensation
and roller cam followers.
Hydraulic phase shifters at intake and exhaust shaft.
BMW TWIN POWER TURBO OTTOMOTOREN.FUNKTIONSPRINZIP VALVETRONIC.
Masking
Orientation of inlet
mass flow for optimal
swirl and tumble.
Increasing the mass flow
through inlet valve 1 for
swirl generation.
Fully variable valve lift and
timing to reduce pumping
losses and residual gas
concentration.
Gas exchange Phasing
Inlet 1 Inlet 2
Full loadIdle
Val
velif
t
Cyl
inde
r p
ress
ure
[bar
]
Volume [l]
Lower part-load;
catalyst heating
Upper part-load;
full-load
Inlet valve 2
Inlet valve 1
Valve lift-difference
BMW EFFICIENT DYNAMICS.REIBUNGSREDUZIERUNG - VALVETRONIC.
VALVETRONIC
MIT DIESER TECHNOLOGIE WERDEN ZUM EINEN DIE
DROSSELVERLUSTE BEIM LADUNGSWECHSEL ERHEBLICH
REDUZIERT, ZUM ANDEREN ABER AUCH EINE DEUTLICHE
REIBUNGSMINDERUNG BEI TEILLAST ERZIELT.
0,0
0,5
1,0
1,5
2,0
2,5
3,0
600 800 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
Rei
bm
omen
t [
Nm
]
Motordrehzahl n [1/min]
2,0mm 3,0mm
Max. Ventilhub
0,3mm6,0mm 8,8mm
BMW EFFICIENT DYNAMICS.REIBUNGSREDUZIERUNG - KFR ÖLPUMPE.
ÖLDRUCK KENNFELD-GEREGELT
DIESE TECHNOLOGIE ERMÖGLICHT DIE OPTIMALE ANPASSUNG
DES ÖLDRUCKS AN DIE TATSÄCHLICHEN MOTOR-
ANFORDERUNGEN UND FÜHRT ZU EINER
VERBRAUCHSREDUZIERUNG BIS ZU 1,8%
0
50
100
150
200
250
300
350
400
450
500
0 200 400 600 800 1000
Ant
rieb
slei
stun
g d
er Ö
lpum
pe
(W)
NEDC-Zyklus (s)
ohne Kennfeldregelung
mit Kennfeldregelung
CHAIN DRIVE.
Chain Drive at the power output side.
Same layout for diesel and gasoline engines.
Common component for 3-cyl. and 4-cyl.
engines.
Common component for transversal and
longitudinal application.
Low engine friction due to straight guide rails
and minimal linkage at the tensioning rails.
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.AUXILIARY COMPONENTS.
oil filter and
oil water heat exchanger
mechanical
waterpump
high pressure
fuel pump
map controlled oilpump
with integrated vacuum pump
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.CHARGING SYSTEM.
- Worldwide first water-cooled full-aluminum exhaust
turbocharger.
- flanged onto the cylinder head by means of a
clamping/sliding bar.
- Electric actuated wastegate.
- Twin Scroll Turbine with integrated exhaust
manifold.
- flanged onto the cylinder head by means of a
clamping/sliding bar.
- Electric actuated wastegate.
4-cylinder3-cyliner , 75 kW / 100 kW
THE NEW BMW 3-CYLINDER GASOLINE ENGINE.FULL LOAD.
Response @ 1500
rpm
4 cyl. predecessor
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8
Time [s]
Tor
que
[%]
0
50
100
1000 2000 3000 4000 5000 6000
Engine Speed [rpm]
Tor
que
[Nm
]
0
20
40
60
80
100
120
0
50
100
150
200
250
300
Pow
er [k
W]
3 cyl. TwinPower Turbo
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.3-CYLINDER WATER COOLED CHARGING SYSTEM.
water access to the water-cooled hot-
end
water access to the cylinder head
closed deck architecture
cooling jacket hot-end
crank-case water jacket is used as distributor
bank for the head supply
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.WARMING UP OIL CIRCUIT.
0 200 400 600 800 1000 1200
Oil
te
mp
era
ture
Time [s]
uncooled hot-end
water-cooled hot-end
speed NEDZ
INTAKE MANIFOLD WITH INTEGRATED AIRCOOLER.
Throttle valve as common part for all longitudinal engines
Integrated Aircooler (mounted from the rear side of the manifold)
No internal seal neccessary
BELT DRIVE.
Identical Layout and parts for
all longitudinal engines
Configured for lower initial
tension
HEAT MANAGEMENT FOR LONGITUDINAL ENGINES.
Electrical actuated ball valve
Mounted on engine outlet
Shorter reaction times
Central injector position.
Spark plug and injector transversely
positioned.
Spark plug on exhaust side.
Friction optimized piston shaft coating.
CFD optimized charge motion.
BMW TWIN POWER TURBO OTTOMOTOREN.BRENNRAUM.
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.COMBUSTION CHAMBER.
Previous engine
compression ratio 10.0
spark position 6.0 mm
small piston bowl
bore 84mm
New engine
compression ratio 11.0
spark position 4.7 mm
wide piston bowl
bore 82 mm
Predecessor Engine
Eroded fuel holes.
New Engine
Static flow reduced vs. predecessor.
Wide spray and wide piston bowl.
Laser-drilled fuel holes with individual hole layout.
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.INJECTION TECHNOLOGY.
BMW TWIN POWER TURBO OTTOMOTOREN.MEHRLOCHINJEKTOR IN ZENTRALER EINBAULAGE.
lasergebohrte Spritzlöcher
verbesserte Zerstäubung
erhöhter Lufteintrag ins Spray
reduzierte EindringtiefeReduced penetration
0 mm
10 mm
20 mm
30 mm
40 mm
50 mm
60 mm
70 mm
80 mm
0 mm
10 mm
20 mm
30 mm
40 mm
50 mm
60 mm
70 mm
80 mm
Lase
r
drill
ing
Sta
ndar
d
ED
M
Laser drilling, opt.Standard
lochindividuelles Spray
individuelles Design für jedes Spritzloch
verbesserte Gemischhomogenisierung
reduzierte Wandbenetzung Lase
r
drill
ing
Sta
ndar
d
ED
M
Laser drillingStandard
Kraftstoffanschluß Dichtring
elektrischer Anschluß Injektorspitze mit Spritzlöchern
Quelle: Bosch
BMW TWIN POWER TURBO OTTOMOTOREN.KLEINSTMENGENFUNKTIONALITÄT.
Quelle: Bosch
Controlled Valve Operation (CVO).
EMISSIONS: COMBUSTION SYSTEM OPTIMIZATION FOR REDUCED HC-EMISSIONS.
KEY FEATURES FOR ENHANCED
MIXTURE HOMOGENIZATION
Improved atomization through
injector design.
Optimized fuel distribution by
improved spray design.
Large stroke/bore ratio for high level
of charge motion for enhanced
mixture distribution.
Turbulence generation towards TDC
for robust ignition and high burning
velocities.
PR
EV
IOU
S E
NG
INE
NE
W E
NG
INE
0
2
4
6
8
10
12
14
16
0,6 0,7 0,8 0,9 1 1,1 1,2 1,3 1,4
Re
lati
ve F
req
ue
ncy
[%
]
Air Ratio l [-]
new engine
previous engine
BMW TWIN POWER TURBO OTTOMOTOREN.OPTIMIERUNGSMAßNAHMEN AM HOTEND.
optimierte Wastegate - Kanäle
weit öffnendes Wastegate
optimierte Katalysator - Anströmung
turbinennahe Katalysator - Position
4-Zylindermotor 6-Zylindermotor
8-Zylindermotor
0
30
60
90
120
150
180
210
0
60
120
180
240
300
360
420
0 1000 2000 3000 4000 5000 6000 7000
Po
we
r [k
W]
Torq
ue
[N
m]
Engine speed [rpm]
4-cyl. 141kW
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.FULL LOAD.
0
30
60
90
120
150
180
0
60
120
180
240
300
360
0 1000 2000 3000 4000 5000 6000 7000
Po
we
r [k
W]
Engine speed [rpm]
Torq
ue
[N
m]
3-cyl. 170kW
3-cyl. 100kW
THE NEW BMW INLINE 6 CYLINDER ENGINE.FULL LOAD CURVE.
0
50
100
150
200
250
300
200
250
300
350
400
450
500
0 1000 2000 3000 4000 5000 6000 7000 8000
engine speed [rpm]
po
wer
[kW
]
torq
ue[N
m]
240kW@ 5500 rpm450kW@ 1380 rpm
current engine
predecessor
ACOUSTIC.IMPROVEMENT OF OVERALL SOUND IN COMPARISONTO PREDECESSOR
Airborne noise at left enginge side
Sou
nd p
ress
ure
leve
l[dB
]
engine speed [1/min]
EU6Emissions Level
105CO2 emissions NEDZ
[g/km] -17 %127
7,9Acceleration 0-100 km/h (s) -1,2 sec
9,1
160Torque (Nm) + 38 %
220
90
100+11 %Power (kW)
Predecessor MINI Cooper
MINI Cooper Model Year 2014
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.CONSUMPTION AND DRIVING PERFORMANCE MINI.
EU6
Emissions Level EU5
133CO2 emissions NEDZ [g/km]*
-20 %165
6,1
Acc. 0-100 km/h (s)* -0.6 sec6,7
260Torque (Nm) + 23 %
320
155
170+10 %Power (kW)
Predecessor MINI John Cooper Works
MINI John Cooper Works 2015
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.CONSUMPTION AND DRIVING PERFORMANCE MINI.
* with automatic transmission
EU6
Emissions Level EU6
152CO2 emissions NEDZ [g/km]*
-10 %169
5,1
Acc. 0-100 km/h (s)* -0.1 sec5,2
400Torque (Nm) + 13 %
450
225
240+7 %Power (kW)
Predecessor BMW 335i MJ 2015
BMW 340i MJ 2016
THE NEW BMW EFFICIENT DYNAMICS ENGINE FAMILY.CONSUMPTION AND DRIVING PERFORMANCE BMW.
* with automatic transmission
Page 49
THE POWERTRAIN OF THE BMW I8.
BMW i-SUSTAINABILITY DRIVES THE LIFECYCLE.
New electric drivetrain
Production concept of the future
New vehicle conceptsNew materials and recycling
Pioneering design New customer focusNew processes Employees
Integrated approach of BMW i – BORN ELECTRIC.
THE POWERTRAIN OF THE BMW i8.
LIFE DRIVE - ARCHITECTURE.
Body surfaces
Drive modul
Electric motor with power electronics
Internal combustionengine with transmission
Lithium-ion battery Fuel tank
Life-modul with carbon fibre-reinforcedplastic passenger compartment.
Seite 51
THE POWERTRAIN OF THE BMW i8.
POWERTRAIN SYSTEM OVERVIEW.
6-SPEED
AUTOMATIC
TRANSMISSION
HV SGR
2 GEAR E-
TRANSMISSION
POWER
ELECTRONICS
E-MOTOR
HIGH VOLTAGE
BATTERY
REME
1.5 LITRE TWINPOWER
TURBO ENGINE
3-CYLINDER SOUND CHARACTER.DOMINANT FREQUENCY OF EXHAUST SYSTEM.
3-cylinder with potential to support typical 6-cylinder timbres.
Support for sporty character.
engine speed [rpm]3.000
Frequency[Hz]
6-cylinder
4-cylinder Rest
RestRest
3-cylinder
3.Order
2.Order
3.Order
1,5.
Order
1.000
NEW PETROL / DIESEL ENGINE FAMILY.
INLINE
CONCEPT IDENTICAL PARTS
DIESEL
3-CYLINDER 4-CYLINDER
GASOLINE
> 60 %
30
-4
0 %
> 60 %
Common and
synergy
parts gasoline - diesel
Different
parts
gasoline – diesel
gravity cast cylinder
head
Nimonic outlet valves
closed deck design
deep-skirt architecture
different main bearing
machining
different
machining
6-CYLINDER
i8-variations
NEW PARTS.
AIR INTAKE WITH
INTEGRATED
WATERCOOLED
INTERCOOLER
CRANKDRIVEBELT DRIVE
HIGH VOLTAGE
STARTER-ALTERNATOR
TURBOCHARGER
WITH ELECTRIC
WASTEGATE
BELT DRIVE.
DECOUPLED BELT PULLEY
BOW SPRING
TORSIONAL DAMPER
DOUBLE-ARM
BELT
TENSIONER
recuperationstart and boost-function
THERMIC AND ACOUSTIC CAPSULES.
POWER AND TORQUE CURVE.
0
30
60
90
120
150
180
0
60
120
180
240
300
360
0 1000 2000 3000 4000 5000 6000 7000
Le
istu
ng
/ P
ow
er [k
W]
Dre
hm
om
en
t /
To
rq
ue
[N
m]
Motordrehzahl / Engine Speed [rpm]
320 Nm @ 3.500
rpm
170 kW @ 5.800
rpm
THE BMW i8 ARCHITECTURE COMBINES THE DRIVING CHARACTERISTICS OF A SPORTS CAR WITH THE FUEL CONSUMPTION OF A SMALL CAR.
THE COMBINATION OF E-DRIVE AND COMBUSTION ENGINE ENSURES SUPERIOR RESPONSE BEHAVIOR AND AGILITY.
80
90
100
110
120
0
1
2
3
4
5
6
-1 0 1 2 3 4 5 6 7
Time [s]
Measured at 80-120 km/h in fifth gear
BMW i8
266 kW
Competitor
316 kW
Competitor
294 kW
BMW i8
266 kW
3.8 s 5.5 s 6.3 s
Spe
ed [
km/h
]
i8 tensile
force HA
(VM)
i8 tensile
force VA
(EM)
Tens
ile f
orce
[kN
]
Competitor 316 kW
Otto Leiter Treffen, EA-3, 27.04.2015 Seite 61
ELEKTRIFIZIERUNG BEI BMW.
Seite 62
ZUNEHMENDE ELEKTRIFIZIERUNG.FRAGEN.
Macht es noch Sinn den
Verbrennungsmotor weiterzuentwickeln?
Gibt es noch Weiterentwicklungspotenzial
beim klassischen Verbrennungsmotor?
BMW EFFICIENT DYNAMICS.REIBUNGSREDUZIERUNG - FORMHONEN.
FORMHONEN
MIT DIESER NEUEN TECHNOLOGIE KÖNNEN DIE
VERFORMUNGEN DIE IM MOTORBETRIEB AUFTRETEN
AUSGEGLICHEN WERDEN UND DIE KOLBENRINGE MIT
GERINGERER VORSPANNUNG BETRIEBEN WERDEN, WAS ZU
EINER REIBUNGSREDUZIERUNG FÜHRT.
Serie
Formhonen
CHEMISCHES BESCHLEUNIGTES GLEITSCHLEIFEN (ISF).PROZESSTECHNIK.
•Flüssiger Compound wird in Gleitschleifanlage dosiert
•Compound erzeugt dunkelgraue Oxidschicht auf
Bauteilen, Oberflächenpassivierung, Prozess stoppt
•Abtragung der Oxidschicht zusammen mit den
Rauheitsspitzen durch keramische Schleifkörper
•Oxidschicht bildet sich kontinuierlich neu und wird
immer wieder abgetragen, während das Material in
den Werkstücktälern und -riefen erhalten bleibt
…weiterer Abtrag…
Reibungsreduzierung Achsgetriebe, 27.11.2013 Seite 64
Seite 65
GRENZEN DER VERBRAUCHSREDUZIERUNG.
Seite 66
BATTERIEENTWICKLUNG.
???
Seite 67
BMW POWER E-DRIVE CONCEPT.
POWER EDRIVE TECHNOLOGY: POSITIVE RESPONSE.
THANK YOU FOR YOUR ATTENTION.
