PISa WP6 System Validation and. Mike McCarthy (TRL)

Transcription

1 PISa WP6 System Validation and Evaluation Mike McCarthy (TRL)

2 WP6 Aims Validate system function Track tests relevant scenarios Evaluate system performance Performance of system actions (e.g. braking) Some rider feedback Recommendations for system Improvements based on testing 03/02/2010 2

3 PISa systems Malaguti Spidermax 500cc Distance Support System (DS) Active Braking (AB) Enhanced Braking (EB)/Active Suspension TVS Apache 160cc Combined Braking (CB)/Semi-active suspension 03/02/2010 3

4 Distance Support System Validation Two experiments 1) Simulator experiment 2) Pilot track test Procedure: Car-following task with and without the DS system 03/02/2010 4

5 1. Simulator Experiment Results Without DSS TTC THW Throttle position With DSS TTC THW Throttle position 03/02/2010 5

6 2.Track Test 03/02/2010 6

7 -No significant differences -5 subjects -Detection of other objects apart from lead vehicle Results: Performance - Time Headway 0,75 THW STD 0,70 0,65 STD THW [s] 0,60 0,55 0,50 0,45 0,40 0,35 DSS No DSS THWSTD High THW = large distance 03/02/2010 7

8 Simulator experiment DSS Validation DSS algorithm gave very good results increased car-following performance & decreased control effort Pilot track test (only 5 subjects) DSS was considered useful DSS should be improved: obstacle detection 03/02/2010 8

9 PISa systems Malaguti Spidermax 500cc Distance Support System (DSS) Active Braking (AB) Enhanced Braking (EB)/Active Suspension TVS Apache 160cc Combined Braking (CB)/Semi-active suspension 03/02/2010 9

10 Active Braking - Static object Test Speed (km/h) AB Trigger setting =3 AB Trigger setting =5 AB Trigger setting =7 AB Trigger setting = /02/

11 Crossing scenario Test Object Test Speed (km/h) AB Trigger setting =3 AB Trigger setting =5 AB Trigger setting =7 AB Trigger setting = /02/

12 Active Braking - Results Reliability of AB activation 56%-91% AB level 3m/s 2 appropriate for track setting 03/02/

13 PISa systems Malaguti Spidermax 500cc Distance Support System (DSS) Active Braking (AB) Enhanced Braking (EB)/Active Suspension TVS Apache 160cc Combined Braking (CB)/Semi-active suspension 03/02/

14 Enhanced Braking (EB) testing 03/02/

15 Enhanced Braking EB off (baseline) and EB on Suspension setting Test Speed (km/h) Off Medium Maximum 03/02/

16 Enhanced Braking - Results Mean stopping distance (m) EB off = rider applied front and rear brake EB on = rider applied rear brake only EB off EB on Test speed (km/h) 03/02/

17 Enhanced Braking - Results Mean straight line stopping distance (m) Test Speed (km/h) EB off Normal EB off Medium EB off Max EB on Normal EB on Medium EB on Max Baseline Mean /02/

18 PISa systems Malaguti Spidermax 500cc Distance Support System (DSS) Active Braking (AB) Enhanced Braking (EB)/Active Suspension TVS Apache 160cc Combined Braking (CB)/Semi-active suspension 03/02/

19 Combined Braking Straight line braking test CB off (baseline) and CB on Two test riders, 10 tests per condition Suspension setting Test Speed (km/h) Off On 03/02/

20 Combined Braking - Results 40 Stopping distance (m) for range of test speeds with and without CB Stopping Distance (m) CBS off CBS on Test speed (km/h) 03/02/

21 Combined Braking - Results Results for Rider B Test Speed (km/h) Improvement in mean stopping distance with CBS and Semi-active suspension (m) Improvement in stopping distance with CBS and Semi-active suspension (%) m 29.16% m 17.65% m 23.35% m 19.41% Mean 4.60m 22.39% 03/02/

22 Conclusions PISa system tested - development systems Recommendations made and further updates required Tests for a range of riders and in more complex environments Active Braking 3m/s 2 level was appropriate for test conditions AB trigger successful - e.g. at 45 km/h, triggered at 20.67m 5.48m (TTC 1.61s-0.44s) depending on AB trigger setting Enhanced Braking Effective system made performance comparable to test rider applying both front and rear brakes Combined Braking Improvement (P<0.001) in mean stopping distance Mean 18.5% improvement over speed range tested Rider dependent effects noted (Rider A=14.6%, Rider B=22.4%) 03/02/

23 Thank you for your Attention! 03/02/