P-Series
- Standard P3/4 9MO K.AI
- Standard P1.5 18MO Z.AI
- Standard P3 3YO L.AI
- Standard P6 6YO M.AI
- Standard P10 10YO N.AI
In the mid-seventies, the United Nations' group of experts on passive safety started to work on requirements for child restraint systems. The work resulted in ECE-Regulation 44: "Uniform provisions concerning the approval of restraining devices for child occupants of power-driven vehicles" that entered into force in 1982. An ad-hoc group was asked to develop a series of child dummies for this regulation. Originally, the regulation described 4 child dummies including the P¾ (9 months), P3 (3 years), P6 (6 years), and P10 (10 years). In 1988, a 5th dummy was added representing a newborn child, the P0 and in 1995 the 18-month-old child dummy was developed (P1½).
These six dummies are known as the TNO P-series of child dummies. The dimensions and mass distribution of the dummies represent those of 50th percentile children of their respective ages.
P-Dummies are designed in these sizes; P¾ 9MO, P1½ 18MO, P3 3YO, P6 6YO, P10 10YO
Specifications
Key Features
- The P¾, P3, P6 and P10 dummies consist of a head, neck, torso assembly, lumbar vertebrae assembly, abdomen, upper and lower arms (left and right) and upper and lower legs (left and right).
- Two standard locations for accelerometers in the head cavity and at the back of the torso.
- P¾ and P3 dummies have 3-channel and 6-channel neck load transducers available.
- All dummies are supplied with two pieces of modelling clay for evaluation of abdominal penetration.
Product Specifications
| P3/4 Sitting Height | 460 mm | 18.1 in |
| P3/4 Full Length | 710 mm | 28 in |
| P11/2 Sitting Height | 495 mm | 19.5 in |
| P11/2 Full Length | 820 mm | 32.3 in |
| P3 Sitting Height | 550 mm | 21.7 in |
| P3 Full Length | 985 mm | 38.8 in |
| P6 Sitting Height | 635 mm | 25 in |
| P6 Full Length | 1,170 mm | 46.1 in |
| P10 Sitting Height | 730 mm | 28.7 in |
| P10 Full Length | 1,385 mm | 54.5 in |
Applications
- Vehicular frontal and side child restraint systems.
Regulations
| WHERE USED | DEFINING REGULATION |
|---|---|
| United Nations Economic Commission for Europe | UNECE-Regulation 44 |
Instrumentation
| Linear Accels | Load Cells | |
|---|---|---|
| P3/4 & P3 Head | Ax, Ay, Az | |
| P3/4 & P3 Neck | Fx, Fy, Fz, Mx, My, Mz | |
| P3/4 & P3 Thorax | A, Ay, Az | |
| P1.5 Head | Ax, Ay, Az | |
| P1.5 Neck Upper | Fx, Fy, Fz, Mx, My, Mz | |
| P1.5 Neck Lower | Fx, Fy, Fz, Mx, My, Mz | |
| P1.5 Neck Lumbar | Fx, Fy, Fz, Mx, My, Mz | |
| P1.5 Thorax | Ax, Ay, Az | |
| P1.5 Pelvis | Ax, Ay, Az |
Simulation Models
Finite Element Model currently not available. If you are interested in this model please contact our regional sales representatives.
