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CUSTOMERS REQUIREMENTS Comfort Acoustic Thermic Ergonomic Habitability Quality Longevity Reliability Low cost Purchase Fuel consumption Maintenance Repairs. REGULATION Atmospheric pollution Safety Noise

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customers requirements and regulation constraints

CUSTOMERS REQUIREMENTS

  • Comfort Acoustic Thermic Ergonomic Habitability
  • Quality Longevity Reliability
  • Low cost

Purchase

Fuel consumption

Maintenance

Repairs

  • REGULATION
  • Atmospheric pollution
  • Safety
  • Noise
  • End of life vehicle recycling

MARKETING

  • Corrosion warranty 12 years

Customers requirements and regulation constraints

contribution of road traffic to pollutant emissions in europe in 1995

34%

51%

66%

41%

Contribution of road traffic to pollutant emissions in Europe in 1995

NOX

PARTICLES

NMHC

CO

Source european agency for environment

emission regulations in europe

HC + NOX

CO

90

80

70

60

50

40

30

20

10

0

70

73

75

77

79

81

83

85

87

89

91

93

95

97

Emission regulations in Europe

100%

94/12/EEC

70/220/EEC

74/290/EEC

77/102/EEC

78/665/EEC

85/351/EEC

91/441/EEC

future emissions standards for passenger cars

Emissions in g/km

EURO 2

EURO 3

EURO 4

EURO 2

EURO 3

EURO 4

Diesel

Gasoline

(1996)

(2000)

(2005)

(1996)

(2000)

(2005)

0,34

0,2

0,1

0,71

0,56

0,3

HC

HC + NOX

0,25

0,15

0,08

0,63

0,5

0,25

NOX

NOX

3,2

2,3

1

1,06

0,64

0,5

CO

CO

0,08

0,05

0,025

PARTICLES

Future emissions standards for passenger cars
slide6

Impact on fuel

Improvement of 10 % of :

consumption

n

Power train efficiency

10 %

n

Vehicle Mass

5 %

n

Rolling resistance

2-3 %

n

Power consumption

1-2 %

of auxiliairies

Source : Renault

Fuel saving potential of various technologies

slide7

100 %

63 %

32 %

16 %

Noise level (dB)

Acoustic Energy (%)

74

dB(A)

82

dB(A)

80

dB(A)

77

dB(A)

1970

1977

1984

1996

European noise limits for cars

slide8

EU targets for a recovery and recycling contentof end of life vehicles

2005

2015

85 %

95 %

n

Recovery Rate

80 %

85 %

n

Recycling Rate

frontal crash tests

NEW

ECE R33

ADAC

AMS

EURO

NCAP

NORM

NORM

TEST

TEST

(Oct. 98)

Vehicle speed

48

50

55

56

64

(km/h)

R

D

R

D

D

Barrier type

100 %

50 %

50 %

40 %

40 %

Overlap

15°

Barrier angle

R = Rigid D = Deformable

FRONTAL CRASH TESTS

EURO

corrosion protection is being pulled by vw and opel s 12 years perforation guarantee
Corrosion protection is being pulled by VW and Opel’s 12 years perforation guarantee

- Marketing Stroke

- Cost Reduction

- Weight Reduction

european average coated steel content in a body in white

85 %

83 %

Duplex coating

64 %

Electrogalvanized

40 %

17 %

Hot Dip galvanized

1985 1990 1995 2000 2002

European average coated steel content in a body in white
steel solutions for weight reduction
Body-in-white

Conception of leightweighting solutions including new steel qualities, like Ultra high strengh steels, Usilight, Taylored blanks... taking into account results of Ulsab

Multi-thicknesses blanks

Spot welded patchworks

Laser welded tailored blanks

Structures

Low cost car, through space frame conception. Opportunity to combine very high strengh steels, hydroforming and roll forming

STEEL SOLUTIONS FOR WEIGHT REDUCTION
cold rolled steels for automotive applications

Tensile strength (Mpa)

1500

1400

Boron steel

1300

1200

1100

1000

TRIP

900

800

Dual phase

700

- BH

600

- Rephosphored

500

400

HES

Micro alloyed

300

200

100

Cold-rolled steels for automotive applications

0 5 10 15 20 25 30 35 40 45 50 Elongation %

dual phase 600 m etallurgical aspects dp600 125c 1400 mn 350si 200cr 60mo

overaging

Dual phase 600 - Metallurgical aspectsDP600 125C - 1400 Mn - 350Si - 200Cr - 60Mo

Continuous annealing

Intercritical annealing 800°C

8 - 15% Martensite

use of tailored welded blanks in europe

63

Numberin millions

51

42

29

18

13

7

6

0

1993

1994

1995

1996

1997

1998

1999

2000

Use of Tailored welded blanks in Europe
usilight
USILIGHT

APPLICATIONS

PRODUCT

  • Hood
  • Rear trunk
  • Fenders
  • Rear floor
  • Under hood parts

3 layers sandwich structure :

  • Steel 0.25 mm
  • Rigid polymer  1 mm
  • Steel 0.25 mm

Hood : prototype

ADVANTAGES

  • Strong rigidity - Low weight in Kg / m2
  • Good behaviour regarding indentation
  • Weight reduction (ex : Hood up to 40 %)

DRAWBACKS

  • Material cost