AHSS先进高强度钢在中级轿车及SUV平台上的应用
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10
Mid-size Sedan / SUV Platform
S-in motion® Mid-size Sedan
S-in motion® Mid-size SUV Guidelines
• Modular
S-in motion® Mid-size SUV
approach in regard to the Midsize Sedan • Type of body: unibody • Worst case for transmission choice in one model: o o No prop-shaft present for a more severe intrusions scenario 4x4 transmission mass considered
8
NA Mid-size SUV Benchmark & Solutions
Explorer (4x2) Grand Cherokee Traverse (4x4) 2011 2011 (4x4) 2014
Highlander (4x4) 2013
Pilot
Pathfinder (4x4) 2014
Malibu
Camry
Altima
Source:
6
NA Mid-size Sedan Benchmark & Solutions
BIW weight without CMS* vs Curb Weight
NA Mid-size sedans
BiW weight (kg)
S-in motion® Mid-size Sedan baseline
The proposed BIW solutions are very close to aluminum intensive BIW.
* CMS = Crash Management System (bumper beam and crash boxes)
7
NA Mid-size Sedan Benchmark & Baseline
Sedan: 300 kg
SUV: 522 kg
SUV: 420 kg
Roof Crush
40% Frontal
25% Frontal
Side MDB
Side Pole
Rear
Validated loadcases: stiffness and crash requirements including IIHS frontal small overlap rigid barrier, roof crush, side MDB, side pole as well as FMVSS301 rear crash tests. S-in motion® Midsize is a catalog of lightweight solutions for Midsize vehicles.
31% AHSS + PHS
39% AHSS + PHS
Source:
35% AHSS + PHS
Tensile strength values
S-in motion® Mid-size Sedan baseline BIW material breakdown
Baseline is in line with current NA Mid-size Sedan BIWs (35% AHSS + PHS).
NA Mid-size SUV BIWs
BiW weight (kg) SUV baseline PHS intensive luxury SUV S-in motion® Mid-size SUV solution
Aluminum intensive luxury SUV
Footprint (m2)
Source:
The proposed BIW solution weight is close to aluminum intensive SUV BIW.
9
Baseline SUV Representation: BIW+CMS*
Mid-size SUV Baseline
Ford Explorer
Max level 4.0 UVW Solution +200kg
Maximum plastic strain of 9% in fuel tank (target <15%)
B-pillar safety space 18.8 cm from seat centerline
No reinforcement required to meet performance target
No reinforcement required to meet performance target Baseline Solution +200 kg
New side sill reinforcements Baseline Solution +200 kg
•
•
Tensile strength values
5
NA Mid-size Sedan Benchmarking
Benchmarked vehicles represent 60% of 2013 US Mid-size sales (5 of top 6 sellers)
Fusion
Accord
4
ArcelorMittal products used in this project
2 sets of solutions: one with current grades, one with emerging grades
ArcelorMittal currently available grades
3
S-in motion® Mid-size Objective
Baseline: NA market representative Mid-size vehicle Scope: BIW + Bumpers + door in white
Sedan: 385 kg
Objective: achieve a 20% weight reduction at very low cost difference thanks to advanced high strength steels
2
S-in motion® Mid-size Sedan and SUV
The Solution – S-in motion® Mid-size Sedan and SUV • A catalogue of steel solutions for a mid-size PLATFORM that includes both a sedan and a SUV. • Solutions provide impressive weight reduction. • At an affordable light weighting cost. • Meeting all pertinent safety and performance requirements.
The S-in motion® Mid-size SUV model was built as a platform extension of the S-in motion® Mid-size Sedan.
11
Bandwidth study on 200 kg heavier vehicle
Curb weight Powertrain variants A typical Midsize bandwidth is about 200 kg comparing lightest I4 FWD to PHEV or AWD version + 50 kg on engine + 150 kg in rear (battery) Mass was added on engine and rear structure of S-in motion® Mid-size Sedan FEM to simulate heaviest vehicle
ArcelorMittal emerging grades portfolio
• New hot-stamping grades Usibor®2000, Ductibor®1000 High formability grades Fortiform® 980 and 1180 (980HF, 1180HF) MartINsite® 2000
S-in motion® Mid-size Sedan and SUV
The Challenge • To date, all light steel vehicle solutions have targeted individual vehicles. • Light vehicle OEM’s today don’t build one-off vehicles – they use PLATFORMS that include many vehicle styles and powertrain options. • Steel solutions for individual vehicles, therefore, are of limited value.
SOP 2010
16% AHSS + PHS + MS
Jeep Grand Cherokee SOP 2010 8% AHSS + PHS + MS
SOA 2015: 33% AHSS + PHS + MS
* CMS = Crash Management System (bumper beam and crash boxes)
S-in motion® Mid-size solutions Vehicle curb weight (kg)
Aluminum intensive BIW
Source:
(note: no secondary mass savings were considered for the solution vehicles)
Roof crush
+0.2 kg
Per vehicle
SORB
+3.5 kg
Per vehicle
REARห้องสมุดไป่ตู้
SIDE
Shotgun thickness increased Usibor®1500 patch blanks upgauged or extended
Cross-member patch blank extended
Transparent white: specific SUV parts
Green: 100% Sedan C/O
Blue: Scaled Sedan parts (wheelbase + 90mm)
25% of underbody mass of the SUV Solution is carried over from the Sedan Solution underbody [86 / 241 parts]
Essentially AHSS grades • Dual Phase family • Complex Phase family • Usibor®1500 • Laser welded blanks (especially Usibor®1500 /Ductibor®500) • MartINsite® family up to MartINsite® 1700 And also • DP490 Exposed
The S-in motion® Baseline considers the increase in AHSS use between 2010 and 2015 and therefore represents current state of the art (33% AHSS + PHS + MS).
Benchmarked material breakdown values are based on A2Mac1 material analysis
Ford Fusion SOP 2013 Nissan Altima SOP 2012 Honda Accord SOP 2012
33% AHSS + PHS
Mid-size Sedan / SUV Platform
S-in motion® Mid-size Sedan
S-in motion® Mid-size SUV Guidelines
• Modular
S-in motion® Mid-size SUV
approach in regard to the Midsize Sedan • Type of body: unibody • Worst case for transmission choice in one model: o o No prop-shaft present for a more severe intrusions scenario 4x4 transmission mass considered
8
NA Mid-size SUV Benchmark & Solutions
Explorer (4x2) Grand Cherokee Traverse (4x4) 2011 2011 (4x4) 2014
Highlander (4x4) 2013
Pilot
Pathfinder (4x4) 2014
Malibu
Camry
Altima
Source:
6
NA Mid-size Sedan Benchmark & Solutions
BIW weight without CMS* vs Curb Weight
NA Mid-size sedans
BiW weight (kg)
S-in motion® Mid-size Sedan baseline
The proposed BIW solutions are very close to aluminum intensive BIW.
* CMS = Crash Management System (bumper beam and crash boxes)
7
NA Mid-size Sedan Benchmark & Baseline
Sedan: 300 kg
SUV: 522 kg
SUV: 420 kg
Roof Crush
40% Frontal
25% Frontal
Side MDB
Side Pole
Rear
Validated loadcases: stiffness and crash requirements including IIHS frontal small overlap rigid barrier, roof crush, side MDB, side pole as well as FMVSS301 rear crash tests. S-in motion® Midsize is a catalog of lightweight solutions for Midsize vehicles.
31% AHSS + PHS
39% AHSS + PHS
Source:
35% AHSS + PHS
Tensile strength values
S-in motion® Mid-size Sedan baseline BIW material breakdown
Baseline is in line with current NA Mid-size Sedan BIWs (35% AHSS + PHS).
NA Mid-size SUV BIWs
BiW weight (kg) SUV baseline PHS intensive luxury SUV S-in motion® Mid-size SUV solution
Aluminum intensive luxury SUV
Footprint (m2)
Source:
The proposed BIW solution weight is close to aluminum intensive SUV BIW.
9
Baseline SUV Representation: BIW+CMS*
Mid-size SUV Baseline
Ford Explorer
Max level 4.0 UVW Solution +200kg
Maximum plastic strain of 9% in fuel tank (target <15%)
B-pillar safety space 18.8 cm from seat centerline
No reinforcement required to meet performance target
No reinforcement required to meet performance target Baseline Solution +200 kg
New side sill reinforcements Baseline Solution +200 kg
•
•
Tensile strength values
5
NA Mid-size Sedan Benchmarking
Benchmarked vehicles represent 60% of 2013 US Mid-size sales (5 of top 6 sellers)
Fusion
Accord
4
ArcelorMittal products used in this project
2 sets of solutions: one with current grades, one with emerging grades
ArcelorMittal currently available grades
3
S-in motion® Mid-size Objective
Baseline: NA market representative Mid-size vehicle Scope: BIW + Bumpers + door in white
Sedan: 385 kg
Objective: achieve a 20% weight reduction at very low cost difference thanks to advanced high strength steels
2
S-in motion® Mid-size Sedan and SUV
The Solution – S-in motion® Mid-size Sedan and SUV • A catalogue of steel solutions for a mid-size PLATFORM that includes both a sedan and a SUV. • Solutions provide impressive weight reduction. • At an affordable light weighting cost. • Meeting all pertinent safety and performance requirements.
The S-in motion® Mid-size SUV model was built as a platform extension of the S-in motion® Mid-size Sedan.
11
Bandwidth study on 200 kg heavier vehicle
Curb weight Powertrain variants A typical Midsize bandwidth is about 200 kg comparing lightest I4 FWD to PHEV or AWD version + 50 kg on engine + 150 kg in rear (battery) Mass was added on engine and rear structure of S-in motion® Mid-size Sedan FEM to simulate heaviest vehicle
ArcelorMittal emerging grades portfolio
• New hot-stamping grades Usibor®2000, Ductibor®1000 High formability grades Fortiform® 980 and 1180 (980HF, 1180HF) MartINsite® 2000
S-in motion® Mid-size Sedan and SUV
The Challenge • To date, all light steel vehicle solutions have targeted individual vehicles. • Light vehicle OEM’s today don’t build one-off vehicles – they use PLATFORMS that include many vehicle styles and powertrain options. • Steel solutions for individual vehicles, therefore, are of limited value.
SOP 2010
16% AHSS + PHS + MS
Jeep Grand Cherokee SOP 2010 8% AHSS + PHS + MS
SOA 2015: 33% AHSS + PHS + MS
* CMS = Crash Management System (bumper beam and crash boxes)
S-in motion® Mid-size solutions Vehicle curb weight (kg)
Aluminum intensive BIW
Source:
(note: no secondary mass savings were considered for the solution vehicles)
Roof crush
+0.2 kg
Per vehicle
SORB
+3.5 kg
Per vehicle
REARห้องสมุดไป่ตู้
SIDE
Shotgun thickness increased Usibor®1500 patch blanks upgauged or extended
Cross-member patch blank extended
Transparent white: specific SUV parts
Green: 100% Sedan C/O
Blue: Scaled Sedan parts (wheelbase + 90mm)
25% of underbody mass of the SUV Solution is carried over from the Sedan Solution underbody [86 / 241 parts]
Essentially AHSS grades • Dual Phase family • Complex Phase family • Usibor®1500 • Laser welded blanks (especially Usibor®1500 /Ductibor®500) • MartINsite® family up to MartINsite® 1700 And also • DP490 Exposed
The S-in motion® Baseline considers the increase in AHSS use between 2010 and 2015 and therefore represents current state of the art (33% AHSS + PHS + MS).
Benchmarked material breakdown values are based on A2Mac1 material analysis
Ford Fusion SOP 2013 Nissan Altima SOP 2012 Honda Accord SOP 2012
33% AHSS + PHS