mts systems mts test mts sensors aerospace ground … · 2019. 12. 19. · mts test mts sensors mts...

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Aerospace Ground Vehicles Materials

MTS Test MTS Sensors

MTS Systems

Biomedical

Vehicle & Component Measurement & Testing

MTS Proprietary January 2013

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» Safety Requirements Increasing

» Electronic Stability Control (ESC)

» Global competition requires differentiation

» Vehicle Handling

» Ride Comfort

» Fuel Efficiency Standards Adoption

Trends in Vehicle Performance Testing

MTS Proprietary Page 3

New regulations and globalization drive the need for new testing tools and methods

Market Driver – Globalization» Improving Ride Comfort

– Key factor in customer satisfaction and purchasing decisions

– Lower background noise from engine (EV/HEV) and steering (EPS) expose passengers to more aerodynamic and suspension acoustics in the cabin

– Semi-Active and Active suspensions have made tuning more complex Typical Vehicle Interior Noise Spectrum

From: Jun Lu, Passenger Car Interior Noise Reduction by Laminated Side Glass, Proceedings of Inter-Noise 2002, Institute of Noise Control Engineering


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Market Driver – Globalization» Increased global competition pushes OEMs to differentiate platforms with

performance

» Improving Vehicle Handling

– Move from Suspension/Tire Characterization to more Vehicle Based Maneuver Simulation

Fy (N) vs SA (degrees)

-8000.00

-6000.00

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0.00

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6000.00

8000.00

-10.00 -8.00 -6.00 -4.00 -2.00 0.00 2.00 4.00 6.00 8.00 10.00

SA (degrees)

Fy (N

)

Series1 Series2 Series3 Series4 Series5 Series6 Series7


-8000.00

-6000.00

-4000.00

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0.00

2000.00

4000.00

6000.00

8000.00

-10.00 -8.00 -6.00 -4.00 -2.00 0.00 2.00 4.00 6.00 8.00 10.00

SA (degrees)

Fy (N

)


Series InformationSeries 1 Fz = -9283 NSeries 2 Fz = -7547 NSeries 3 Fz = -5804 NSeries 4 Fz = -4655 NSeries 5 Fz = -2915 NSeries 6 Fz = -1125 N


Vehicle based maneuver simulationTire Characterization– not vehicle based


Market Driver – Safety Requirements » Electronic Stability Control (ESC)

– Active vehicle intervention for safety

» 2012 Requirement in the US on all new passenger vehicles under 10,000 lbs (4536 kg) – (FMVSS) No. 126

» 2014 Requirements for EU on new vehicles – (EC) No. 661/2009

» OEMs need limit tire data for ESC Maneuver to go into vehicle models

» Electronic Power Steering (EPS) is increasingly used in ESC assistance

ESC Maneuver


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Flat-Trac® Roadway

» With a vehicle on a laboratory rig:

– Measure static and dynamic handling performance

– Study the effects of vertical road motion on maneuvering, vibration, and durability


SteerVertical

RoadSpeed

CG Restraint

MTS Flat-Trac® Handling Roadway coordinate flat belt units in speed and

direction to measure suspension and vehicle ride and handling performance

MTS Proprietary

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Handling Roadway – Function

» Restraint in only 3 axes (x, y, yaw)

» No restraint in suspension directions

» Determine instant road acceleration and velocity

» Present correct road velocity to each tire

» Repeat fast enough to minimize simulation lag

» Measure vehicle response

The vehicle is in the loop, it reacts the same as on the real road, for all maneuvers

MTS Proprietary

Handling Roadway – Features

» Flat Surface

» 230 kph

» All 3 Road Motions

» Free Suspension

» Road Speed or Road Load

» Vertical Vibration to 20 g

» Body Force Simulation System

» 6 Component Tire Force

» Autopilot

» Automated routine tests

MTS Proprietary

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Handling Roadway – Applications» Open Loop

– Steer Step– Throttle Off in Curve– Sine Steer– Straight Acceleration– Brake in a Curve

» Closed Loop– Constant Radius Skid Pad– Constant Velocity Skid Pad

» Durability– Rough Road– Driving Cycles

Page 11

MTS Proprietary

Handling Roadway – Results

» Skid Pad

– steer vs. ay

– 40 tests repeated

» J Turn

– Ay vs. time

– 26 tests repeated

Test Repeatability

Page 12

MTS Proprietary

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Suspension Kinematics and Compliance (K&C) Deflection Measurement Systems


System Operation Limits Use •Quasi-static to 5 hz •Static K&C Tests•0.6 m/sec velocity •Chassis Torsional Rigidity Testing

•Cornering Simulation•Time History Playout•Vehicle Inertia Measurement (option)

•Quasi-static to 20 hz ADDITIONAL CAPABILITY:•0.6 m/sec velocity •Dynamic K&C Deflections

•mHIL Capability•Lower Frequency Transient Replication

•Quasi-static to 35 hz ADDITIONAL CAPABILITY:•2 m/sec velocity •FRF Analysis

•Degradation•Higher Frequency Transient Replication

K&C (Base System)

K&C(with Dynamic Simulation Option)

DK&C

» Functions

– Static K&C Tests

– Dynamic K&C Deflections

– Frequency Response Function (FRF) Analysis

– Degradation

– Maneuver Analysis

– Inertia Measurement

Dynamic Kinematics and Compliance (DK&C)Deflection Measurement System


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» Applications

– Suspension Development

– Benchmarking

– Dynamic Model Verification

– Maneuver Analysis

– Vehicle in the Loop Maneuvering

» Benefits

– Precision

– Throughput

– Flexibility

Dynamic Kinematics and Compliance (DK&C)Deflection Measurement System


K&C Data Examples

MTS Proprietary

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Fy vs. Slip Angle

-10000

-8000

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0

2000

4000

6000

8000

10000

-30 -20 -10 0 10 20 30

Slip Angle - degree

Fy

- N

11570.339256.264

6942.1984628.132

2314.066

Inclination Angle = 6 degree

Tire Load

P205/60R15

Speed = 88.5

Inflation Pressure = 260 kPa

Mz vs. Slip Angle

-400

-300

-200

-100

0

100

200

300

400

500

-30 -20 -10 0 10 20 30

Slip Angle - degree

Mz

- N

m

11570.339256.2646942.1984628.1322314.066


Tire Load

P205/60R15

Speed = 88.5 km/hInflation Pressure = 260 kPa

Friction Elipse Fy vs Fx

-5000

-4000

-3000

-2000

-1000

0

1000

2000

3000

4000

-8000 -6000 -4000 -2000 0 2000 4000 6000 8000

Fx - N

Fy

- N

Tire Load = 5780 N Speed = 65 km/h

Inclination Angle = 0 degreeInflation Pressure = 260 km/h

Slip Angle = -2 degree

Slip Angle = 4 degree

MTS Proprietary

Expanded capability

Safer Vehicles through advances in Tire Testing» Increased range of tire testing conditions

– Improve models with greater range of empirical data

– Extend range of dynamic modeling and simulation


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Flat-Trac® Tire Test System

» Measure tire force and moment properties – data used for CAE

» Establish the tire's contribution to vehicle dynamic performance

– Cornering characteristics» Lateral Force (Fy) vs. Slip Angle

» Aligning Torque (Mz) vs. Slip Angle

– Camber stiffness characteristics» Lateral Force (Fy) vs. Camber

» Aligning Torque (Mz) vs. Camber

– Traction Characteristics» Slip ratio testing

» Combined lateral with slip

Data used with Empirical and Analytical models.

» Controlled

» Repeatable

» Eliminates uncertainty of curved drum

» Emulates flat roads

» Test data correlation with real roads


Flat-Trac CT Plus F&M Measurement System

MTS ProprietaryPage 20

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R20070307Proprietary 21

Example: Steady-State F&M TestFy (N) vs SA (degrees)

-8000.00

-6000.00

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0.00

2000.00

4000.00

6000.00

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-10.00 -8.00 -6.00 -4.00 -2.00 0.00 2.00 4.00 6.00 8.00 10.00

SA (degrees)

Fy

(N)



-8000.00

-6000.00

-4000.00

-2000.00

0.00

2000.00

4000.00

6000.00

8000.00

-10.00 -8.00 -6.00 -4.00 -2.00 0.00 2.00 4.00 6.00 8.00 10.00

SA (degrees)

Fy

(N)





Example: G-Spline Analysis Report - FyFy vs SA and Fz

SA Joints-6.1

-1.521.526.1

Fz Joints0

38008900

Force and Moment - Carpet Plot

8000 N 7000 N6000 N

5000 N

4000 N

3000 N

2000 N

1000 N

0 N

6 deg

5 deg

4 deg

3 deg

2 deg

1 deg

0 deg0

1000

2000

3000

4000

5000

6000

Fy (N

)

Date Tested Apr-21-1998 12:38:31 PM Belt Speed 3.50 Wheel Dia. Tire Size P205/65R15Operator RLJ Avg IA 0.00 Rim Width Construction TR: 2stl 1 poly SW: 2 polyManufacturer Cooper Tire Inflation 180.0 Ref Load 5395 Adapter ID MTSTire Type Passenger Infl Control Ref 180.00 DOT Code

degkPa N

kPa

Test Data File Coordinates UsedTest Tire ID

Z:\FAM-SC_Cooper-Touring_015_21APR98-a.dataSTD GM 6 DEG

SAE15Break In FALSE

kph6.0 in15 in

Fy vs SA and Fz

SA Joints-6.1

-1.521.526.1

Fz Joints0

38008900


8000 N 7000 N6000 N

5000 N

4000 N

3000 N

2000 N

1000 N

0 N

6 deg

5 deg

4 deg

3 deg

2 deg

1 deg

0 deg0

1000

2000

3000

4000

5000

6000

Fy (N

)

Date Tested Apr-21-1998 12:38:31 PM Belt Speed 3.50 Wheel Dia. Tire Size P205/65R15Operator RLJ Avg IA 0.00 Rim Width Construction TR: 2stl 1 poly SW: 2 polyManufacturer Cooper Tire Inflation 180.0 Ref Load 5395 Adapter ID MTSTire Type Passenger Infl Control Ref 180.00 DOT Code

degkPa N

kPa



SAE15Break In FALSE

kph6.0 in15 in

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Example: G-Spline Analysis Report - MzMz vs SA and Fz

SA Joints-6.1

-1.521.526.1

Fz Joints0

38008900


8000 N

7000 N

6000 N

5000 N

4000 N

3000 N2000 N

1000 N 0 N

6 deg5 deg

4 deg

3 deg

2 deg

1 deg

0 deg

-50

0

50

100

150

200

250

300

Mz

(N-m

)Date Tested Apr-21-1998 12:38:31 PM Belt Speed 3.50 Wheel Dia. Tire Size P205/65R15Operator RLJ Avg IA 0.00 Rim Width Construction TR: 2stl 1 poly SW: 2 polyManufacturer Cooper Tire Inflation 180.0 Ref Load 5395 Adapter ID MTSTire Type Passenger Infl Control Ref 180.00 DOT Code

degkPa N

kPa



SAE15Break In FALSE

kph6.0 in15 in

Mz vs SA and Fz

SA Joints-6.1

-1.521.526.1

Fz Joints0

38008900


8000 N

7000 N

6000 N

5000 N

4000 N

3000 N2000 N

1000 N 0 N

6 deg5 deg

4 deg

3 deg

2 deg

1 deg

0 deg

-50

0

50

100

150

200

250

300

Mz

(N-m

)Date Tested Apr-21-1998 12:38:31 PM Belt Speed 3.50 Wheel Dia. Tire Size P205/65R15Operator RLJ Avg IA 0.00 Rim Width Construction TR: 2stl 1 poly SW: 2 polyManufacturer Cooper Tire Inflation 180.0 Ref Load 5395 Adapter ID MTSTire Type Passenger Infl Control Ref 180.00 DOT Code

degkPa N

kPa



SAE15Break In FALSE

kph6.0 in15 in


Example: Dynamic Sweep TestF y vs . S lip A n g le

-1 0 0 0 0

-8 0 0 0

-6 0 0 0

-4 0 0 0

-2 0 0 0

0

2 0 0 0

4 0 0 0

6 0 0 0

8 0 0 0

1 0 0 0 0

-3 0 -2 0 -1 0 0 1 0 2 0 3 0

S lip A n g le - d e g re e

Fy

- N

1 1 5 7 0 .3 39 2 5 6 .2 6 46 9 4 2 .1 9 84 6 2 8 .1 3 22 3 1 4 .0 6 6

In c lin a tio n A n g le = 6 d e g re e

T ire L o a d

P 2 0 5 /6 0 R 1 5

S p e e d = 8 8 .5

In f la t io n P re s s u re = 2 6 0 k P a

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Example: Dynamic Sweep Test

Mz vs. Slip Angle

-400

-300

-200

-100

0

100

200

300

400

500

-30 -20 -10 0 10 20 30

Slip Angle - degree

Mz

- N

m

11570.339256.2646942.1984628.1322314.066


Tire Load

P205/60R15

Speed = 88.5 km/hInflation Pressure = 260 kPa


Example: Combined Fx and Fy TestF ric tio n E lip s e F y vs F x

-5 0 0 0

-4 0 0 0

-3 0 0 0

-2 0 0 0

-1 0 0 0

0

1 0 0 0

2 0 0 0

3 0 0 0

4 0 0 0

-8 0 0 0 -6 0 0 0 -4 0 0 0 -2 0 0 0 0 2 0 0 0 4 0 0 0 6 0 0 0 8 0 0 0

F x - N

Fy

- N

T ire L o a d = 5 7 8 0 N S p e e d = 6 5 k m /h

In c lin a tio n A n g le = 0 d e g re eIn fla tio n P re s s u re = 2 6 0 k m /h

S lip A n g le = -2 d e g re e

S lip A n g le = 4 d e g re e

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Example: Slip Ratio TestFx vs SR

-6000

-4000

-2000

0

2000

4000

6000

-30 -20 -10 0 10 20 30

SR (%)

Fx

(N)

Condition 5 Condition 6

Cond. 5 SA 0 degFy 172 NFz -4338 NPt 261 kPaVr 65 kph

Cond. 6 SA 0 degFy 121 NFz -4347 NPt 260 kPaVr 65 kph

Condition Information

Flat-Trac ® LTRe» Located at the National Tire Research Center, owned and operated

by Virginia Tech, opening January 2013 in Southern Va.

– 200 mph, torque at full speed.

– ESC Maneuver simulation for improving stability control on vehicles.

– Advanced control improve Slip Ratio control and enable (mHil)

– Only test system that can test NASCAR tires at high speeds


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Steering System Testing in Research and Product Development» Durability

» Characterization

– Vibration, noise

– Kinematics and Compliance (linearity, backlash, stiffness)

– Driver feedback

– Efficiency

– Steering tuning

» Comparison/Evaluation

– Testing to a Standard

– A:B comparison

– Benchmarking

– Characterization

– Specification, target setting

– New technology evaluation

– Cost reduction idea generation

» Performance, validation, fault testing

– Steering tuning

– Simulation

» Testing to real world responses

» Customer (or usage) correlated

– Evaluate safety issues29

New EPS Technology

» Rapidly evolving electronic steering systems (EPS) are replacing the hydraulic (HPS) technology.

» EPS systems enhance the overall driver experience by improving vehicle efficiency, handling, comfort and safety.

» Technology is more complex and presents new challenges as it continues to develop.


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Component Test ExamplesSteering Column

Intermediate Shaft

EPAS Components

Steering Knuckle

31

Integrated CANbus 793.25

32

Integrated HIL Simulator

Vehicle Bus Interface Capability

MTS Proprietary

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33

Maneuver

Vehicle Response

Road Surface

Real Vehicle System Simulated Vehicle System

Vehicle Model

Steer Hardware in anMTS Loading RigManeuver

Road Surface

Vehicle Response

Allows vehicle level evaluations with model of vehicle and real parts

Steering System: Mechanical Hardware-in-the-Loop (mHIL)

MTS Proprietary

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MTS Proprietary

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Hybrid Simulation

Physical components & Inputs

Virtual components & Inputs

Comprehensive and accurate simulation environment

+

=


» Hybrid Simulation combines physical and virtual components, inputs, and constraints to create an integrated simulation system

Hybrid Simulation Benefits» Hybrid Simulation offers advantages for both

Analysis & Testing

– Analysis: Real physical parts can be substituted for difficult-to-model components when performing virtual simulations.

» Example: using actual vehicle dampers as part of a virtual handling simulation

– Testing: Generate correct test loads by surrounding physical test parts with virtual components and generic inputs.

» Example: using virtual tires and digital roads as part of a full-vehicle durability test

MTS Proprietary

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Spindle Coupled Road Simulation

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MTS Proprietary

» Tire‐coupled suspension evaluation test system

– Floating or controlled sprung mass

» Applications

– Suspension development & validation

– Wheel control

– Ride Quality

– Isolation

– Road holding

– NVH

– Component Degradation

– Suspension Transmissibility

– Vertical Durability

¼‐Suspension Bi‐Axial Test System


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Driving Simulation for Safety and Driver Response

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MTS Proprietary

Providing Solutions to Meet Changing Industry Needs

» Testing Electronic Stability Control (ESC) components and systems

» Tools to evaluate and design for advanced vehicle handling

» Pioneering advanced ride comfort testing solutions

» Systems for continued development of energy efficiency in vehicles


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THANK YOU

6/25/2015Page 41

Rick L. ZiemanRegional Sales Manager Australia & Ground Vehicles India

m MTS Systems Corporation 14000 Technology Drive MS 210 Eden Prairie, MN 55344 (952) 937-4961 (612) 210-6859 Cell [email protected]

mts systems mts test mts sensors aerospace ground … · 2019. 12. 19. · mts test mts sensors mts...

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