2011 chevy cruze

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Page 1: 2011 Chevy Cruze
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Vehicle Structure• 10-40% improvement depending on body mode

– 42-hertz bending frequency– 40-hertz torsional frequency

• Strong structure allows for better isolation, tuning and NVH

• Structure sealing is optimized– Hollow beam and box sections with fillers/baffles

including door frames

• Efficient use of high-strength steel

Page 19: 2011 Chevy Cruze

Front SuspensionMacPherson Strut Design• De-coupled to separate load paths for

tuning– Separates extreme and harsh load events

(maximum jounce) from normal road inputs

– Provides better isolation under all conditions

– Separates spring and damper loads

• Excellent road holding withprecise handling characteristics

• Reduced NVH

• Hydraulic ride bushings infront aluminum control arms – Ride isolation, quieter performance,

controlled transfer of road input loads

Page 20: 2011 Chevy Cruze

Rear Suspension – Z LinkTorsion Beam – Compound Crank Rear Axle• Patented design where rear axle reacts independently to

individual wheel inputs• Central tubular tuning

element providesside-to-side wheel controlfor greater stability

– Welded to trailing armsusing patented helicalwelding process

– Attached to body with hydraulic ridebushings to reduce road noise andimprove vibration isolation

• Lower mass• Compact packaging• Hydraulic axle bushings for ride

Page 21: 2011 Chevy Cruze

Rear Suspension – Z LinkWatts Link• Allows for separate tuning between ride

and handling for improved vehicle dynamics

• Maintains lateral control and stability

• The linkage usescounter-acting forcesto keep the rear axlecentered under the car

• Flexible design that allows for adjustment of roll-rate and roll-steer to individual engines; vehicle weights,body styles and chassis control systems

Page 22: 2011 Chevy Cruze

SteeringRack-mounted electric power steering system• Dual pinion rack EPS for precise control and

responsiveness• Rack-mounted motor delivers

more direct on-center feel• Speed sensitive system that

responds to amount of assistneeded at any speed– High assistance at low

speed to minimize effort

– Reduced at high speed toinsure steering feel

• Electric power saves fuel and mass– Eliminates energy consuming pump

– Approximately 0.5 mpg improvement

Page 23: 2011 Chevy Cruze

Brakes & Chassis Controls• Four-wheel discs with steel vented

rotors– Front 300 mm x 26 mm– Rear 292 mm x 12 mm– Aluminum front knuckles reduce mass

• Chassis Controls Systems– Four-wheel ABS with electronic

brake force distribution • Provides front to rear proportioning of

braking effort

– Traction control system• Uses brake and engine torque intervention

duringlaunch and acceleration

• Brake limited differential

– Electronic stability control• Works with ABS and traction control system

toapply brakes selectively to maintain control

• Uses yaw sensor, lateral accelerometerand steering angle sensor

Page 24: 2011 Chevy Cruze

Cruze Powertrain Lineup

• Four combinations

1.8L Four-Cylinder

• Standard on Cruze LS

1.4L Turbo• Standard on LT , LTZ &

ECO

6-Speed ManualTransmission

• Standard on LS and ECO

6-Speed Automatic

Transmission• Available on all trims

Page 25: 2011 Chevy Cruze

Ecotec 1.4L Turbo• Developed globally between Germany,

Sweden and the U.S.– Utilized GM’s turbo and small engine

expertise around the globe – Part of the same engine family as Volt– Initial engines supplied from Austria,

soon to be produced in Flint, Mich.

• Best-in-segment fuel efficiency– Among the most fuel efficient four-cylinder

gasoline offerings of its kind in the world– Eco Cruze estimated at 40 mpg highway with

6-speed manual transmission

• Delivers the performance characteristics of a larger displacement engine

Page 26: 2011 Chevy Cruze

Ecotec 1.4L Turbo Performance• Estimated 138 horsepower @ 4900 rpm• Estimated 148 lb-ft of torque @ 1850 rpm • Vehicle performance

– Estimated 0-to-60 mph time is very competitive• Low 9-second range

Integration of the turbo charger in the engine’s exhaust manifold reduces turbo lag and delivers noticeably quick response

Midrange torque is most noticeable in passing situations

Page 27: 2011 Chevy Cruze

• Makes a small engine act big– Fuel economy of a small engine, performance of a larger engine

• Improves mid-range torque– Highway and passing

Usable Power• 138 hp is not what 138 hp used to be• Boost performance (mid-range torque)

when you need it

Engine Speed (RPM)

Torque (lb.-ft.)

1.4 TurboCompetitor enginewith comparable hp

Ecotec 1.4L Turbo

Why a Turbo?

1000 2000 3000 4000 5000 6000 70000

20

40

60

80

100

120

140

160

Page 28: 2011 Chevy Cruze

Intake ManifoldComposite material, electronic throttle body, sequential port fuel injection

Hollow CamshaftLight weight design, low rotating mass

Variable Valve Timing Dual, continuously variable cam phasersReduced fuel consumption, increased performance

Roller Finger Follower andHydraulic Lash Adjuster

Low friction improves fuel consumption, maintenance-free valve train

Poly-V-Belt DriveAutomatic belt tensioner enables maintenance free accessory drive

Front Cover Including Oil and Water PumpVariable displacement oil pump improves fuel consumption

Torsional Vibration DamperReduced torsional vibration, improved NVH

Structural Aluminum Oil PanImproves NVH behavior/PT bending stiffness, high heat transfer, improved sealing

Solid Cast Crankshaft 16-Valve Cylinder Head

Improves performance due to increased air flow, optimized inlet portsOptimized cooling circuit

Turbo ChargerIntegrated design

Oil To Water CoolerCylinder Block/ Bed Plate

Cast iron, no balance shafts

Electronically Controlled Thermostat

Controlled engine heat up and cooling, low fuel consumption, low emissions

Close-Coupled CatalystAchieve Euro 5 and Bin 5 (ULEV) emissions

Chain DriveLow friction improves fuel consumption, lifetime maintenance free

Extended Life CoolantLong Life (100K Mile)

Spark Plugs

Ecotec 1.4L Turbo

Page 29: 2011 Chevy Cruze

Ecotec 1.8L

• Estimated 136 horsepower @ 6300 rpm

• Estimated 123 lb-ft of torque @ 3800 rpm

• 10.5:1 compression ratio• Dual-overhead camshaft

configurationwith four valves per cylinder

• Variable valve timing – Dual continuously variable

camshaft phasing

• Sequential fuel injection• Variable intake manifold• Coil-on-plug ignition• Light weight direct acting hydraulic

tappets with reduced friction• Hollow-cast camshafts

• Oil-water heat exchanger

• Piston-cooling oil jets

• Structural oil pan

• Electronic controlled cooling system

• Extended life coolant

• Long life (100K mile) spark plugs

Page 30: 2011 Chevy Cruze

• Available six-speedautomatic (6T40) – Compact packaging– Quiet operation – Low maintenance

6-Speed Automatic Transmission6-speed transmissions to enhance Cruze fuel efficiency

Page 31: 2011 Chevy Cruze

The compact dimensions of the new 6-speed

OVERVIEW• Compact, capable, and feature-laden

for true global coverage• The new 6-speeds enable improved

fuel economy and performance • Clutch-to-clutch shifting enables

increased functionality • Several manufacturing sites globally• U.S. source Toledo Transmission

FEATURES• Wide 6:1 ratio spread, six speeds

delivering fuel economy and performance • Flexible portfolio• Diesel and gas engine applications with engine torque up to 400 Nm• 4500 lb maximum test weight class• Neutral idle enables improved fuel economy and reduced idle shake• Internal control module (TEHCM) improves underhood packaging

6-Speed FWD/AWD Automatic Transmission A 6-speed engineered for the global market

Page 32: 2011 Chevy Cruze

• Standard six-speed manual (M32)– Three-piece housing structure

enables excellent stability– Fully-synchronized for

smooth, quick gearengagement in allshifting scenarios

– Exceptional NVHcharacteristics

6-Speed Manual Transmission

Page 33: 2011 Chevy Cruze

3-PIECE HOUSING

OVERVIEW:• FWD Manual Transmission• Transmission family comprises (2)

variants– Up to 320 Nm *

* 1st & (Rev) gear limited to 260 (230)Nm /2nd gear to 290 Nm

• 6 Fwd gears /3 Shafts/ 3-piece housing• Hydraulic clutch control / cable shifting• Dual Mass Flywheel provisions• Production plant: Vienna-Aspern

TECHNICAL INFORMATION• Center distances

Input to Output (Differential)– 197mm

Input to Main shaft- Upper– 101.2mm

Input to Main shaft – Lower– 76.5mm

• Overall length: 334mm• Dry weight: 46.7kg • Oil Volume: 1.9L• Gears double usage of 3+5 driving and

1st gear driven idler for reverse operation

• Synchronizer designs 3-cone (1/2),2-cone (3/4) and 1-cone (1/R)

ECO GEAR SET• Triple Overdrive Gear Sets: 4th, 5th

and 6th gears are over drive to allow for improved fuel economy

• 6th gear ratio and final drive designed to provide maximum fuel economy benefit

• Downshifting to 5th gear for excellent passing performance / elasticity

ECO 1ST GEAR AND FINALDRIVE SELECTION

• Final drive selected to improve Fuel Economy and deliver Performance Requirements

• Short 1st gear ratio in combination of tall final drive ratio allows for:– Clutch Durability– Ease of Vehicle Launch– Launch on Grade Capabilities

(32% grade in FWD and 27% grade in reverse at 670m altitude)

GEAR SET UP

6-Speed FWD Manual Transmission Manual 6-speeds engineered for the global market

Page 34: 2011 Chevy Cruze

  MZ0-Base MF3-Eco Gearset   1.8L 1.4LTurbo 

1st 3,818 4,273

2nd 2,158 2,158

3rd 1,475 1,302

4th 1,067 0,959

5th 0,875 0,744

6th 0,744 0,614

Reverse 3,545 3,818

 Final Drive Ratio  3.94 1  3.833

Manual Transmission N/V Ratio Comparisons

Page 35: 2011 Chevy Cruze

Durability and Reliability• Covered by the 100,000-mile/

5-year Powertrain Warranty

• Tested to the same stringentstandards as all other GM engines

• SAE certified horsepower and torque

Page 36: 2011 Chevy Cruze

Safety Systems• Engineered for 5-star safety ratings

– Has achieved 5-star performance inEurope, Korea, China, India and Australia

– Meets new roof crush standards

• 10 airbags standard– Dual-stage front airbags with

passenger sensing system– Front seat knee airbags– Front seat side airbags– Outboard rear seat side airbags– Side head curtain airbags with rollover protection

• Dual front seat belt pretensioner (lap and retractor) systems

Page 37: 2011 Chevy Cruze

Safety Systems• Traction control

• Electronic stability controlwith rollover sensing

• 4-wheel ABS

• OnStar – advanced automatic crash notification

• Break-away pedal assembly

Page 38: 2011 Chevy Cruze

NVH Refinements18 Distinctive Acoustical Treatments• Acoustic laminated windshield with triple

sealing at windshield base• Steel front-of-dash panel sandwiched

between two damping mats • Nylon baffles filled with sound-absorbing

foam in hollow portions of body structure and door headers–expands in paint oven

• Headliner comprises five layers of thermal fiber acoustic material, including premium woven fabric on outer layer

• Sound insulation material between rear-body structural components made from recycled blue jean material

• Doors have triple seals with fiberglass “blankets” for water, airflow and noise barriers.

• Hood absorber• Robotic applied sound deadener to floor pan and body side structure • Decoupled exhaust flex joint and tuned rubber isolators

Page 39: 2011 Chevy Cruze

NVH Refinements

New Engine Mount

• Specifically tuned Neutral Torque Axis engine mounts

– Hydraulic load bearing mounts

– Effectively dampens transfer ofvibration and noise

– Isolated engine cradle

• 6-speed automatic transmission with neutral idle

• Rear Z-Link suspension enablesbushing tuning for improved isolation

Page 40: 2011 Chevy Cruze

Aerodynamics & Mass Reduction• Use of high-strength steels,

gage reduction, weld flange length reduction, scallop

• Belly pan (includes splash protection)

• Tire blockers front and rear

• Front fascia extension panel to the belly pan

• Wheel well liner extensions

• Front end grille close-outs and CRFM baffles

Page 41: 2011 Chevy Cruze

Cruze ECO• Hybrid-like fuel efficiency without the price tag (40

mpg Hwy)• Aerodynamic initiatives of base vehicle plus…

– Lower grille air shutters– Aero blade to deflect air around fuel tank and suspension– Fascia extension to the belly pan, belly pan and

mid-body aero panels to complete underbody shieldingfor laminar flow

– Specific front grille close-outs– Deck lid spoiler– Lowered front fascia air dam– Lowered suspension– Ultra Low rolling resistant 17” tires– Lightweight aluminum wheels

• Aggressive 3.833 final drive ratio

Page 42: 2011 Chevy Cruze

Cruze ECOAir Shutters• First use of active air shutters

for compact cars in U.S.• Improves fuel economy by

reducing aerodynamic drag at highway speeds

• Air shutters close and open based on speed and cooling needs of the engine– Controlled through powertrain

control module

• Drag coefficient reduction of 0.016 Cd

Page 43: 2011 Chevy Cruze

Quality, Reliability, Durability• Cruze is engineered to highest

quality & durability standards– Logged more than 4 million

miles of customer durability testing

– On six continents in the world’s harshest geographic and climatic conditions

– Global vehicle that has been launched and proven in 60 countries