WP1 aims at improving tools for the CRS and car design approach using child dummies. The work package is organised in 4 tasks.
Task 1.1 coordinates the activities of WP1 and is closely connected to task 2.1 (WP2). The main objective of this task is to define priorities for tasks 1.2, 1.3 and 1.4 with respect to important body regions and injury mechanism for the selection of reconstruction cases, design criteria for the dummy modelling and abdominal sensors. In addition task 1.1 links the WP3 activities with WP1.
Task 1.2 aims at the improvement of tools, e.g., dummy models, sensors and dummies. In detail the following actions are considered:
- development of FE dummy models for Q1, Q1.5 and Q6
- for information: models of Q0 and Q3 already exist
- the three dummies were selected to have FE models of all Q-dummies currently in use available
- the requirements for the dummy models have been defined based on requests from car manufacturers, FTSS and WP2 partners.
- assessment and improvement of existing abdominal sensors
- abdominal injuries are a serious problem for children using a booster seat which is not appropriate, misusing a CRS are using the adult belt only
- within the previous CHILD project the abdominal pressure twin sensor (APTS) and the force matrix sensor (FMS) were developed. Both sensors show merits and challenges.
- Ford developed with other US partners an improved dummy abdomen with a measurement device for assessing the abdominal loading
- the three sensor concepts will be analysed in order to propose the most promising system or combination of systems for further assessment of booster seats
- propose modifications for the Q3 design in order to improve the belt interaction response
- from previous studies the assumption is known that the Q3 dummy design might prevent the dummy from submarining in dangerous conditions
- the possible problems and solutions for them will be assessed and rated in order to propose appropriate changes of the dummy design. The results will be shared with the EPOCh project in order to avoid the same problems for the design of the future Q10 dummy.
Reconstruction of accidents involving children takes place in task 1.3. The aim of these tests and simulation is to correlate the injury severity from the accident with the dummy loadings from the tests. This work package concentrated on reconstructions with dummies. To facilitate the analysis of the reconstruction data a data base will be developed to store and analyse the results from task 1.3 and 2.4. The task is coordinated by task 1.1
The aim of task 1.4 is to analyse the reconstruction data in order to develop injury criteria and load limits using dummies and dummy models as surrogates for children.
