Working Conditions 1 to 8 (CFA)

Working Conditions 1 to 8 (and Correction Factor A)

This guide helps users to set up and perform the occupant injury assessments for the Far Side Protocol Working Conditions 1 to 6 for the WSID dummy and the Working Conditions 7 and 8 for the SID2-SBLD dummy (Table H.1) as specified in section 1.2.1.5.3 of the C-NCAP Management Regulation and the Correction Factor A calculation according to section H.1.2.1.6 of the C-NCAP Far-Side Occupant Protection Protocol (2024). 

Please note this guide runs through using the CNCAP Far Side Protocol 2024 Working Conditions 1-6 with Correction Factor A template, but this guide still applies for Working Conditions 1-6, Working Conditions 7-8 with Correction Factor A and Working Condition 7-8 templates.

Depending upon which Working Condition C-NCAP selects to be physically tested you must pass the C-NCAP Far Side Protocol 2024 Working Conditions 1-6 SimVT or C-NCAP Far Side Protocol 2024 Working Conditions 7-8 SimVT otherwise you automatically have a score of zero for the Far Side Protocol.

Firstly you need to select the working condition that was selected by C-NCAP to be physically tested from Table H.1 to get a Test score (out of 8) and Correction Factor A score (out of 1) and run a Working Conditions with Correction Factor A template. You will then select the seven remaining working conditions to get seven simulation scores by running a standard Working Condition template (without Correction Factor A).

Table H.1:

Set-up using Automotive Assessments in PRIMER

Firstly, you need to attach Workflows Automotive Assessments data to your model(s). Follow this guide to see more: Automotive Assessments in PRIMER.

For Crash Test select Far Side Sled, for Regulation select CNCAP, for version select 2024 (WSID) for Working Conditions 1 to 6 or 2024 (SID2-SBLD) for Working Conditions 7 and 8.

Running the templates in REPORTER

In REPORTER there are four related templates, to find them go to the Automotive tab and filter by 'Virtual testing' under Protection and 'C-NCAP' under Regulation.

1. C-NCAP Far Side Protocol 2024 Working Conditions 1-6 with Correction Factor A
2. C-NCAP Far Side Protocol 2024 Working Conditions 1-6
3. C-NCAP Far Side Protocol 2024 Working Conditions 7-8 with Correction Factor A
4. C-NCAP Far Side Protocol 2024 Working Conditions 7-8

Upon opening the templates you will be asked a series of questions:

Firstly input your Working Condition number from 1 to 8

Then select your ISO-MME or CSV Test File. The result of this will be used for your single Test score, and to calculate the Correction Factor A

(with Correction Factor A Templates only)

Then input the distance from the Head Node to the Red Zone (mm). This is the maximum intrusion amount of the door on the impact side in the vehicle side pole impact test. In most cases, the armrest in the intrusion area is the largest intrusion area, and the innermost surface of the armrest is the maximum amount of intrusion. If the maximum intrusion area is at the waist line, then ignore the door trim panel and define the point 50mm inward from the inner panel of the door structure as the maximum intrusion point. See H.2.1.4 in the Far Side Virtual Testing protocol for more. In C-NCAP the head node is defined as the front end of the circular hole at the top of the head

Then select your keyword file. In the case of a standard template this will become one of your seven Simulation scores, in the case of a with Correction Factor A template this will be used to calculate the Correction Factor A score

Finally you will then be asked whether you want to continue with the default results and output directories or configure them in PRIMER

REPORTER Results

Page 1 contains DRIVER_HEAD_EXCURSION and the limits, values and scores for each scored body region. The standard templates (non CFA) are identical but do not display 'Test' or 'CFA'.

The correction factor A is calculated by test score/simulation score of the corresponding working condition. If the calculated result ≥0.9, the correction factor A is adjusted to 1.

Page 2 contains more in depth results of the scores and pages 3 and 4 display the injury graphs.

Running in Batch

IMPORTANT: When running the standard non Correction Factor A Templates simply omit the 'TEST_FILE' variable

The template can also be run in batch mode, specifying the required information through command line arguments.

If your results are in the same directory as the keyword file then you only need to specify the keyword file on the command line and the test file and red zone which are specific to this template:

<reporter_exe> -batch -file=<template_name> -varKEYWORD_FILE=<keyword_file> -varSUMMARY_NAME=<summary_name> -varTEST_FILE=<test_file> -varRED_ZONE=<red_zone> -exit

[Add the -pdf, -html, -pptx command line arguments to write the report out in the format you want]

Where:

If the results are in a different folder to the keyword file, you will need to add an extra argument to specify it:

<reporter_exe> -batch -file=<template_name> -varKEYWORD_FILE=<keyword_file> -varSUMMARY_NAME=<summary_name> -varTEST_FILE=<test_file> -varRED_ZONE=<red_zone> -varRESULTS_DIR=<results_dir> -exit

Where:

Similarly if you want to output the images and other files generated by REPORTER to a different folder than the default, you will need to add an extra argument:

<reporter_exe> -batch -file=<template_name> -varKEYWORD_FILE=<keyword_file> -varSUMMARY_NAME=<summary_name> -varTEST_FILE=<test_file> -varRED_ZONE=<red_zone> -varOUTPUT_DIR=<output_dir> -exit

Where: