Performance as Test Procedures of the PDB and ODB Tests for a Mini-Car

Transcription

1 FI-3-11 Performance as Test Procedures of the PDB and ODB Tests for a Mini-Car JAPAN December 9, rd Meeting of the Informal Group on Frontal Impact 1

2 Objective To examine effects on mini-cars when the test conditions prescribed in ECE R94 are replaced by PDB test. 2

3 Test Matrix Test Vehicles Mini-Car A Mini-Car B Test Conditions 64ODB* 64ODB* 56ODB (ECE R94) Test Weight (kg) Dummies (DR&PA) H3 50th%tile Male H3 50th%tile Male * Conducted in JNCAP : PDB barrier - 60km/h - 50% overlap - 150mm ground clearance 64ODB: EEVC barrier - 64km/h - 40% overlap - 200mm ground clearance 56ODB: EEVC barrier - 56km/h - 40% overlap - 200mm ground clearance 3

4 Test Vehicles Mini-Car A Mini-Car B Front rail and bumper cross beam Front rail and lower cross beam (w/o bumper cross beam) 4

5 Mini-Car A Barrier Deformation 64ODB (EEVC Barrier) The front plate broke wide open. The lower part of the honeycomb bottomed out completely. 5

6 Mini-Car B Barrier Deformation 64ODB (EEVC Barrier) 56ODB (EEVC Barrier) The front plate broke wide open. The lower part of the honeycomb bottomed out completely. The lower part of the honeycomb bottomed out. 6

7 Mini-Car A Vehicle Deformation 64ODB (EEVC Barrier) The front rail was rarely deformed. The bumper cross beam was bent significantly. The front rail was deformed. 7

8 Mini-Car A Vehicle Deformation Engine top (right) Engine top (left) Engine bottom (oil pan) Front rail front-end (right) Bumper cross beam (center) Instrument panel (right) Steering shaft end 64ODB (EEVC Barrier) Brake pedal Driver toe board (center) A-pillar belt line (right) 64ODB B-pillar belt line (right) Longitudinal deformation (mm) There were big differences in the deformation of the front rail. In, the front rail was deformed very slightly. The intrusion into the upper part of the cabin (instrument panel, A-pillar, etc.) tended to be large in, while that into the lower part of the cabin (toe board, etc.) tended to be large in 64ODB. 8

9 Mini-Car B Vehicle Deformation 64ODB (EEVC Barrier) 56ODB (EEVC Barrier) The front rail was rarely deformed. The lower cross beam was bent significantly. The front rail was deformed. The front rail was deformed. 9

10 Mini-Car B Vehicle Deformation Engine top (right) Engine top (left) Engine bottom (oil pan) Front rail front-end (right) ODB (EEVC Barrier) 56ODB (EEVC Barrier) Lower cross beam (center) Instrument panel (right) Steering shaft end Brake pedal Driver toe board (center) A-pillar belt line (right) B-pillar belt line (right) Longitudinal deformation (mm) 64ODB 56ODB Overall, vehicle deformation in 64ODB tended to be large. showed the smallest deformation of the front rail. 10

11 Driver Dummy Injury Criteria Mini-Car A Passenger HIC HIC Head Gs 52.2 (G) 65.5 Head Gs 94.5 (G) Neck Ext (Nm) 27.1 Neck Ext (Nm) 54.4 Chest Def (mm) 30.9 Chest Def (mm) 25.1 Right Femur 0.44 (kn) 0.31 Right Femur 1.77 (kn) 1.28 Left Femur 0.81 (kn) 1.33 Left Femur 0.69 (kn) 0.07 UR Tibia Index UR Tibia Index LR Tibia Index UL Tibia Index ODB LR Tibia Index UL Tibia Index ODB LL Tibia Index LL Tibia Index Rate for each criteria (%) Rate for each criteria (%) showed a slightly higher HIC, while 64ODB showed a slightly higher Head Gs. No significant difference was observed between the two tests for Neck, Chest, and Legs. 64ODB showed higher levels for Head and Neck. No significant difference was observed between the two tests for Chest and Legs. The Head Gs criterion was exceeded in both tests. 11

12 Driver Dummy Injury Criteria Mini-Car B Passenger HIC HIC Head Gs 57.3 (G) Head Gs 48.7 (G) Neck Ext (Nm) 29.9 Neck Ext (Nm) 32.6 Chest Def (mm) Chest Def (mm) Right Femur 0.82 (kn) Right Femur 1.98 (kn) Left Femur 1.68 (kn) Left Femur 0.02 (kn) UR Tibia Index UR Tibia Index LR Tibia Index UL Tibia Index ODB 56ODB LR Tibia Index UL Tibia Index ODB 56ODB LL Tibia Index LL Tibia Index Rate for each criteria (%) Rate for each criteria (%) The Head and Neck levels became lower in the order of, 64ODB, and 56ODB. No significant difference was observed between and 64ODB for Chest and Legs. showed the highest level for Head. No significant difference was observed between the three tests for Chest and Legs. 12

13 Internal Energy (EES) Suppose the deformation energy of EEVC Barrier is 45kJ (UTAC Proposal) : (kj) km/h PDB Mini Car A km/h EEVC Barrier Energy Absorbed km/h PDB km/h 56km/h EEVC EEVC Barrier Barrier Mini Car B E Barrier E Vehicle Mini Car A 64ODB(EEVC) EES(km/h) EES(Equivalent Energy Speed) km/h PDB 64km/h EEVC Barrier 56km/h EEVC Barrier Mini Car B 64ODB(EEVC) 56ODB(EEVC) Mini Car A Mini Car B 64ODB showed the highest EES, while and 56ODB resulted in EES of the same level. 13

14 The deformation energy of EEVC Barrier was actually measured. (kj) Energy Absorbed km/h PDB Mini Car A 64km/h EEVC Barrier 60km/h PDB Internal Energy (EES) km/h 56km/h EEVC EEVC Barrier Barrier Mini Car B E Barrier E Vehicle Mini Car A 64ODB(EEVC) 70 EES(Equivalent Energy Speed) 60km/h PDB Mini Car B EES(km/h) km/h EEVC Barrier 56km/h EEVC Barrier 64ODB(EEVC) 56ODB(EEVC) Mini Car A Mini Car B 56ODB showed the lowest EES, while and 64ODB resulted in EES of the same level. 14

15 Summary The bottom-out of the EEVC barrier was observed with the mini-car even under the 56ODB conditions (the current ECE R94). The front rail penetrated into the PDB and deformed its front block significantly (the front plate broke wide open). Significant differences were seen in the deformation of the front rail between PDB and ODB. Deformation in was extremely smaller than that in 56 and 64 ODB. No significant difference was seen in dummy injury criteria for Chest and Legs between and 64ODB (for Mini-Car B, the head injury criterion tended to be higher in than 64ODB (56ODB)). 64ODB showed the highest EES, while and 56ODB resulted in EES of the same level. (The deformation energy of EEVC Barrier is 45kJ(UTAC proposal) 56ODB showed the lowest EES, while and 64ODB resulted in EES of the same level. (The deformation energy of EEVC Barrier was actually measured.) If the test of heavy weight car is finished in Japan, we re going to report the details in 4 th informal meeting. 15

16 Test Matrix PDB 60kph at 50% overlap (France proposal) ODB 56kph at 40% overlap (Current ECE R94 ) ODB 64kph at 40% overlap (JNCAP) Minicar A (curb mass: 940kg) (JAMA) (JNCAP) Minicar B (curb mass: 910kg) (MLIT) (MLIT) (JNCAP) Minivan (Heavy) (curb mass: 1890kg) (JAMA) (JNCAP) Test Schedule Minicar A (ODB 64kph) Minicar B (ODB 64kph) (PDB 60kph) (PDB 60kph & ODB 56kph) Minivan (ODB 64kph) (PDB 60kph) Meeting 1) (2nd) (3rd) (4th) 1) Meeting of the Informal Group on Frontal Impact 16