mini countryman preview power train workshop final e

8/9/2019 MINI Countryman Preview Power Train Workshop FINAL E

http://slidepdf.com/reader/full/mini-countryman-preview-power-train-workshop-final-e 1/19

MINI CountrymanPowertrain




J Engine

J Petrol

J One/cooper

J Cooper S

J Spotlight cooper s

J Diesel

J One/cooper

J Transmission

J Manual

J Automatic

J „All4“ → The first mini with all-wheel drive

J Power Take-Off (PTO)

J Propeller Shaft

J all4 Clutch & Differential

J Spotlight all4 clutch



Displacement 1598 cc 1598 cc

Bore x stroke 77 x 85.8 mm 77 x 85.8 mm

Fuel injection Manifold injection Manifold injection

Number of valves 4 per cylinder 4 per cylinder

Engine boostconcept

Naturally aspirated Naturally aspirated

Compression ratio 11,0:1 11,0:1

Maximum power@ speed

72 kW /98 bhp6000 rpm

90 kW /122 bhp6000 rpm

Maximum torque@ speed

153 Nm3000 rpm

160 Nm4250 rpm

Dry weight 107 kg 107 kg

Engine architecture 4 cylinders in-line 4 cylinders in-line

Engine block Light alloy Light alloy

Cylinder head Light alloy Light alloy

Camshaft DOHC, compositecamshafts

DOHC, compositecamshafts

Fuel consumption/CO2 emissions

5,9 l/100km137g/km *

6,0 l/100km140g/km *

Emission standards EU5 EU5 / ULEVII

EngineMINI One/Cooper

Highlights:

JFully variable valve train (Valvetronic incl.Double-VANOS )

JMap-controlled oil pump

JSwitchable water pump

JFriction-optimised engine

JStart/Stop-Function

JBrake Energy Regeneration

JShift Point Display

* preliminary



EngineMINI One/Cooper

0

10

20

30

40

50

60

70

80

90

100

0

25

50

75

100

125

150

175

200

225

250

0 1000 2000 3000 4000 5000 6000 7000 8000 Output[kW]

Torque[Nm]

Engine speed [min-1]


Bore x stroke 77 x 85.8 mm 77 x 85.8 mm

Fuel injection Manifold injection Manifold injection


Engine boostconcept

Naturally aspirated Naturally aspirated



72 kW /98 bhp6000 rpm

90 kW /122 bhp6000 rpm


153 Nm3000 rpm

160 Nm4250 rpm





Camshaft DOHC, compositecamshafts

DOHC, compositecamshafts


5,9 l/100km137g/km *

6,0 l/100km140g/km *

Emission Standards EU5 EU5 / ULEVII

* preliminary



Displacement 1598 cc

Bore x stroke 77 x 85.8 mm

Fuel injection Direct Injection

Number of valves 4 per cylinder

Engine boost concept TwinScroll Turbocharger

Compression ratio 10,5:1


135 kW /184 bhp5500 rpm


240 (260**) Nm1600-5000 rpm

Dry weight 121 kg

Engine architecture 4 cylinders in-line

Engine block Light alloy

Cylinder head Light alloy

Camshaft DOHC, composite camshafts


6,1 l/100km143g/km *

Emission standards EU5 / ULEVII

Highlights:

JFully variable valve train (Valvetronic incl. Double-VANOS)

J TwinScroll Turbocharger

JMechanically-driven, dual-piston high-pressure pump

JDirect Injection JCommon Rail technology (120bar)

JMap-controlled oil pump

JSwitchable water pump

JFriction-optimised engine




EngineMINI Cooper S

* preliminary** Overboost



EngineMINI Cooper S

0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

150

160

0

50

100

150

200

250

300

350

400

0 1000 2000 3000 4000 5000 6000 7000 8000

Output[kW]

Torque[Nm]


Displacement 1598 cc

Bore x stroke 77 x 85.8 mm

Fuel injection Direct Injection

Number of valves 4 per cylinder

Engine boost concept TwinScroll Turbocharger

Compression ratio 10,5:1


135 kW /184 bhp5500 rpm


240 (260**) Nm1600-5000 rpm

Dry weight 121 kg

Engine architecture 4 cylinders in-line

Engine block Light alloy

Cylinder head Light alloy

Camshaft DOHC, composite camshafts


6,1 l/100km143g/km *

Emission Standards EU5 / ULEVII

* preliminary** Overboost



EngineMINI Cooper S - Spotlight

New Technology: TVDI

J Turbocharged J Valvetronic J Direct Injection

-270 -180 -90 0 90 180 270 360 450 540 630

Fuel Consumption

JDirect Injection→high compression ratio

(ε =10,5)→high efficiency in part load

and full load

JValvetronic incl. Double-VANOS→ less throttling losses in part

load

JHigh engine torque at low speeds allowslonger gear ratios

⇒Best fuel consumption in class:135 kW 143g/km *

Response

J TwinScroll Turbocharger→Separates exhaust channels of adjacentcylinders (ignition timing: 1-4-3-2)→360° distance in ignition timing of cylinders inone scroll → Low volume in front of turbine

J Valvetronic (incl. Double-VANOS)→Optimal valve timing and valve lift in everysituation, e.g. small valve lifts in full load at low

speeds

⇒ Reduced turbo lag and high torque (240Nm@ 1600U/min) as well as high power output(135kW @ 5500U/min)

Cyl 1 Cyl 4 Cyl 3 Cyl 2

* preliminary




Bore x stroke 78.0 x 83.6 mm 78.0 x 83.6 mm

Fuel injection Direct Injection Direct Injection


Engine boostconcept

Turbocharger withVariable Turbine

Geometry


Geometry


Maximum power@ speed 66 kW / 90 bhp@ 4000 rpm 82kW / 112 bhp@ 4000 rpm


215 Nm@ 1500 rpm

270 Nm@ 1750 rpm





Camshaft DOHC DOHC


4,4 l/100km116g/km *

4,4 l/100km116g/km *

Emission standards EU5 EU5

Highlights:

Direct Injection

2nd Generation solenoid valves for multipleinjections

Common Rail technology (1600bar)

Turbocharger with Variable Turbine Geometry

Diesel Particle Filter with catalytic coatinginstead of additive




EngineMINI One D/Cooper D

* preliminary



EngineMINI One D/Cooper D

0

10

20

30

40

50

60

70

80

90

100

110

120

0

25

50

75

100

125

150

175

200

225

250

275

300

325

350

0 1000 2000 3000 4000 5000Output[kW]

Torque[Nm]



Bore x stroke 78.0 x 83.6 mm 78.0 x 83.6 mm

Fuel injection Direct Injection Direct Injection


Engine boostconcept


Geometry


Geometry


Maximum power@ speed 66 kW / 90 bhp@ 4000 rpm 82kW / 112 bhp@ 4000 rpm


215 Nm@ 1500 rpm

270 Nm@ 1750 rpm





Camshaft DOHC DOHC


4,4 l/100km116g/km *

4,4 l/100km116g/km *

Emission standards EU5 EU5

* preliminary




J Engine

J Petrol

J One/cooper

J Cooper S


J Diesel

J One/cooper

J Transmission

J Manual

J Automatic



J Propeller Shaft





Gearbox

J 6-speed

J Specifically adapted transmission ratio for Petrol and Dieselapplication

J Optimised final drive ratio for each variant

J Carbon synchronisers for all gears for rapid, precise gearchanges

J Synchronized reverse gear

J Hybrid shift cables for highest shifting precision

Clutch

J Self-adjusting clutch (SAC) for all Cooper S and Diesel modelsfor constant pedal feeling throughout lifetime

Dual Mass Flywheel

J Dual Mass Flywheel (DMF) for better decoupling from engineexcitation to improve acoustic performance in Cooper S andDiesel

TransmissionManual



Automatic transmission

J Available as an option for all MINI models except MINIOne D

J 6-speed J Automatic (“D” and “S”) and Steptronic mode

J Paddles on the steering wheel as option (Series forCooper S)

J Neutral Idle Control – gear decoupling in “D” toreduce fuel consumption during standstill

J Torque-oriented calibration in “D“

J Better dynamic behaviour and downhill driving

through intelligent gear-keeping while braking orcoasting

J Stop & Go: detects traffic jams and holds second gearfor more comfortable start-up

J Short shifting time through multiple downshifts

TransmissionAutomatic




J Engine

J Petrol

J One/cooper

J Cooper S


J Diesel

J One/cooper

J Transmission

J Manual

J Automatic



J Propeller Shaft





Power Take-Off

Propeller Shaft

Drive Shaft

All4 Clutch

Rear AxleDifferential

Gearbox with Clutch, DMF andFront Axle Differential

Rear Differential CrossBar

„All4“ All-Wheel-driveOverview



PTO

J Diverts torque and power from the front axle to therear axle

J Flow of torque to the rear is directed via a HollowShaft from the Differential basket

J Spur Gear provides the necessary offset to theHypoid Gear

J Drive to the right front wheel is provided via a Link Shaft inside the Hollow Shaft

J Gear transmission ratio 2.81:1

„All4“ All-Wheel-drivePower Take-Off (PTO)

Hollow ShaftLink Shaft

Differential

Spur Gear

Hypoid Gear



Propeller shaft

J Transfers torque and power from the PTO to the rear axle differential J Slip-In Tube: reduces max. force through propeller shaft to 20 kN in the event of a head-on collision

→4WD vehicle behaves like 2WD vehicle in the event of a crash (only one passive occupant restraintsystem)

J Optimised acoustics through minimised bending vibrations

→4WD with same comfort as 2WD

„All4“ All-Wheel-drivePropeller Shaft

Slip-In Tube



„All4“ All-Wheel-driveRear axle Differential & All4 clutch

Rear Axle Differential

Made of aluminium

Compact, light, friction-optimised rear axle differential

Gear transmission ratio 2.81:1

All4 ClutchElectromagnetic wet multiplate clutch

Continuous adjustable, fully variable torque distribution between axles

Up to 50% of engine torque to rear axle in regular conditions

Up to 100% of transferable engine torque in slippery conditions

Integration of All4 control unit in DSC control unit

Proactive activation of 4WD depending on driving situation

Micro-slip on front wheels (unnoticeable for the driver) →Torque transfer to rearaxle (<0,1s)

“All4” All Wheel Drive permanently ready

Rear AxleDifferential

All4 Clutch



„All4“ All-Wheel-drivespotlight - All4 Clutch

J DSC unit actuates the Pilot Clutch directly by its

power output stages J Pilot Clutch regulates speed of Input Ramp

J Speed difference between Output Ramp (outputshaft speed) and Input Ramp (input shaft speed)leads to normal force on Main Clutch throughBall and Ramp System

J Main Clutch transfers torque from front to rearaxle

J Torque to rear axle is proportional to appliedmagnetic field in the Pilot Clutch and therefore tothe Electric Power applied by the DSC unit

DSC Unit J Target torque JSpeed difference JWheel speed JEngine torque JAcceleration pedal JSteering angle J Yaw sensor

Main Clutch

Pilot ClutchOutputRamp

Input Ramp

Ball and RampSystem

ElectricPower

Electromagnet

Input Output




Thank you for your attention.

mini countryman preview power train workshop final e

Documents