NHTSA OBLIQUE/SMALL OVERLAP MOVING BARRIER (OMDB)

Transcription

1 NHTSA OBLIQUE/SMALL OVERLAP MOVING BARRIER (OMDB) Moving barrier for frontal oblique crash simulation with a small overlap. I Integrated hydraulic brake system I Wireless remote or trailing cable control possible I Ballast plates for ideal weight compensation I Height of front shield adjustable

2 DESCRIPTION The OMDB moving barrier is used to perform tests to determine the safety of occupants in the event of a side impact in compliance with the requirements of NHTSA. The test setup involves an OMDB moving barrier striking a stationary vehicle at 90km/h at a 15 angle with a 35% overlap against the front end of the vehicle. The moving deformable barrier is equipped with a hydraulic vehicle brake that prevents a secondary impact of the barrier and can also be used as an emergency braking system, for instance in case of a brake abort. 90 km/h, kg 35% overlap Figure 1: Test setup Page 2 / 6

3 MAIN COMPONENTS Figure 2 : Main components 1 Deformation element (not included) 2 Fixture for deformation element 3 Front shield for connection of the deformation element 4 Camera tripod for high-speed video camera (not included) 5 Support plate for high-speed video camera (not included) 6 Strain relief pipe for trailing cable 7 Frame 8 Suspensions 9 Disc brakes (4 pcs) 10 Hydraulic brake system Page 3 / 6

4 HYDRAULIC BRAKE SYSTEM In order to decelerate the moving barrier in case of emergency and after the impact, a hydraulic brake system is installed which operates the four disk brakes. Wireless remote control or trailing cable control is possible. Figure 3: Hydraulic Brake System Figure 4: Hand pump for filling the hydraulic vehicle brake system Page 4 / 6

5 There are two sockets available for connections: one 5-pin and one 10-pin LEMO socket. The 5-pin socket is used for power supply, for the brake when triggered via cable and to connect an external trigger contact (tape switch) to the brake unit. Pin configuration, power-supply input (viewed from connection side) Figure 5: Pin configuration, Lemo 1 B PIN DESCRIPTION 1 Control voltage input for BrakeReady white 2 GND for Signal, Charge Input and Tapeswitch brown 3 Output: Brake Ready Signal green 4 Release Brake 24 V and Charge Input yellow 5 Tapeswitch approx 10mA grey Figure 6: Pin configuration, Lemo 1 B PIN DESCRIPTION 1 Radio module + 5 V white 2 GND brown 3 Release Brake green 4 Standby (unused) yellow 5 Radio module is online grey 6 Pressure status 0 pink 7 Pressure status 1 blue 8 Pressure status 2 red 9 Battery status 0 black 10 Battery status 1 violet Page 5 / 6

6 TECHNICAL SPECIFICATIONS GENERAL SPECIFICATIONS Length (without deformation element) 3,986 mm Width 2,200 mm Height (without camera tripod) 1,211 mm Height (with camera tripod) 1,786 mm Crash weight 2,490 kg Test speed 90 km/h Wheel base 2,591 mm Tire tread width 1,941 mm Tires 215/65 R Tire pressure 4,14 bar / 60 psi / MPa FRONT PLATE Width Height Ground clearance HYDRAULIC BRAKE SYSTEM Operating pressure, nominal / maximum Battery Battery Ambient Temperature Supply voltage for charging (min / nominal /max) Brake fluid 2,200 mm 1,100 mm 89 mm approx. 130 bar / max. 210 bar 1,800 mah, NiMH Discharge: C Charge: 0-45 C 19 / 24 / 30 V DC Use brake fluid according to DOT 3 or DOT4 only, do not use mineral oil Approximate values: Please refer to the exact data from the calibration sheet. SCOPE OF SUPPLY I Moving barrier I Hydraulic brake system I Preparation for trailing cable installation (strain relief pipe) OPTIONAL EQUIPMENT I Camera stand I Trailing cable solution for hydraulic brake I Wireless remote control system for hydraulic brake I Deformation elements Moveable Barrier According To NHTSA Oblique Small Overlap (OMDB).Docx