MTS Vehicle Dynamics Simulator Accelerating Vehicle Dynamics Development with Next-Generation Driving Simulation Technology

Transcription

1 MTS Vehicle Dynamics Simulator Accelerating Vehicle Dynamics Development with Next-Generation Driving Simulation Technology Presented by Patrick Lane-Nott, R&D Vehicle Dynamics Simulator Engineer, Motorsports Technology Group, MTS Systems 20 th October 2015

2 New vehicle technology driven by growth and priorities Light Vehicle production growth % 109M 2020 Light Vehicle production forecast up from 86M in 2014 Contribution to Growth CN, IN, SE Asia 61.1% Advanced Chassis Systems Lightweight Materials Electrification Page 2 Safety, Emissions, and Productivity remain key priorities driving investments in Advanced Chassis Systems, Lightweight Materials, and Electrification.

3 Increasing complexity and complex interaction» Implementation of new vehicle technology and vehicle electrification impacts almost every aspect of the automobile making vehicle dynamics development and testing more complex than ever before. Increased adoption of electronic, mechatronic, and x-by-wire systems. Evaluation of new safety and chassis control functions require vehicle-level evaluation in the lab. Page 3

4 Avoid expensive, late-stage rework» Challenge: Rising effort to implement chassis control schemes across more vehicles» Solution: Introduce a test driver into model-based development process to model, develop and evaluate chassis control systems early in development saving time and expense Introduce test drivers into model-based development to avoid expensive, late-stage rework. Page 4

5 Large-Scale Hexapod simulators from MTS 1. Major Japanese OEM, 2007 Japan 2. VTI Driving Simulator - Linear Motion System, 2002 Swedish National Road and Transport Research Institute (VTI), Linköping, Sweden 3. National Advanced Driving Simulator (NADS), 2001 U.S. D.O.T. N.H.T.S.A., Iowa City, Iowa, U.S.A Virtual Test Track Experiment (VIRTTEX), 2001 Ford Research Laboratory, Dearborn, Michigan, U.S.A. MTS has a successful history delivering larger-scale hexapod for driving simulator applications. Page 5

6 Large-Scale Hexapod simulators»» High-fidelity MDOF systems Human factors research Erogonomics Attributes Large scale simulation Low-frequency Low-bandwidth Low-dynamics Large-scale Traditional Simulators are appropriate for human factors research. Traditional simulators: msec latency Page 6

7 Sensing handling balance» Simultaneous full yaw (x and y) are needed to feel the handling balance of the car and to sense if you are under/over steering. Vehicle Dynamics evaluation requires the driver to feel balance of car. Need to sense phase difference between lateral and yaw. Page 7

8 Must synchronize vehicle model and driver in four senses» Audio (ears) Able to perceive 7 msec latency» Video (eyes) Able to perceive msec latency Most simulators have 100 msec latency» Haptic (fingers on steer wheel) Able to perceive up to 40 Hz Important for under/over steer sensation» Vestibular (inner ear) High Bandwidth Able to perceive up to Hz Important for under/over steer sensation Road Surface Low Latency: Must close the loop through the human driver as quickly as possible. Vehicle Dynamics: 5-50 msec latency Page 8 Audio, Visual, Haptic, Vestibular Cues Low Latency Driver Reaction Vehicle Model Driver inputs Real-Time Response

9 MTS Vehicle Dynamics Simulator (VDS)» All-electric, high-dynamic, low-latency, low-noise, driverin-the-loop system enables humans to be part of a model-based vehicle-level evaluation of chassis systems.» A proven configuration that combines over 15 years of McLaren F1 development experience and 500,000 km of professional driver testing and correlation with state-ofthe art mechanical, visual control, and simulation technology. The MTS VDS is a purpose-built simulator to assess vehicle dynamics performance. Available for purchase through MTS Systems - Now Available for trial and rental at McLaren Now (Sim2 in early 2016) Page 9

10 System Overview» Primary elements Motion simulator Controller and drive systems Software and model integration rfactorpro Visualization system rfactorpro Audio system Control room equipment» Options Page 10 mhil technology Modular light-weight cockpit with driver interface components (hand wheel, pedals) Novel helmet loading system Spare parts and maintenance services Extended consultation services Tightly integrated system that does not require extensive facilities investment.

11 Safe, efficient, and effective vehicle dynamics development» Safely evaluate and optimize vehicle dynamics with integrated ECUs for maximum performance or under specific conditions prior to and/or concurrent with prototype evaluation. Define targets, goals, specifications from concept through system design Support conceptual design decisions Model, develop, evaluate chassis control schemes Perform functional tests of advanced driver assist systems Compact and energy efficient, the VDS is well-suited for office, lab, or track deployment. The VDS is a common point of reference for designers and engineers throughout development. Page 11

12 Option: MTS mechanical Hardware-in-the-Loop (mhil) Technology Improves the fidelity of model-based development. Substitute real parts for difficult-to-model parts. Page 12

13 Page 13 mhil Manoeuver Sweep Steer Fn 4 Corner damper rig

14 Three simulation technologies operating together improve fidelity MTS is able to bundle all three technologies together. Page 14

15 MTS VDS with mhil technology for steering development Page 15

16 Summary» Industry growth and priorities continue to drive innovation in testing technology.» Advances in computing and test system technology enable new simulation methods and systems.» The MTS all-electric, high-dynamic, low-latency, lownoise, driver-in-the-loop system enables humans to be part of a model-based vehicle-level evaluation of chassis systems saving time and cost.» Apply MTS mhil technology to improve vehicle response fidelity e.g. steer feel Page 16

17 Learn more» The VDS can be experienced today at the McLaren Technology Centre in Woking, Surrey, England (20 minutes drive from London Heathrow airport).» Contact Q+A Page 17