Technical Bulletin

aPLI Dynamic Certification
Version 1.0

April 2021
TB 032

TitleVersionDocument NumberAuthor
Date
Related Documents
StatusApplication DateaPLI Dynamic Certification
1.0
TB032
J Ellway (Euro NCAP), O Zander (BASt)
26th April 2021
Pedestrian Testing ProtocolInformation
January 2023

Copyright ©Euro NCAP 2021 - This work is the intellectual property of Euro NCAP. Permission is granted for thismaterial to be shared for non-commercial, educational purposes, provided that this copyright statement appears on
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Preface
DISCLAIMER: Euro NCAP has taken all reasonable care to ensure that the information
published in this document is accurate and reflects the technical decisions taken by theorganisation. In the unlikely event that this protocol contains a typographical error or any
other inaccuracy, Euro NCAP reserves the right to make corrections and determine theassessment and subsequent result of the affected requirement(s).

EUROPEAN NEW CAR ASSESSMENT PROGRAMME (Euro NCAP)

Table of Contents
1.

aPLI Dynamic Certification Corridors .................................................................................... 6

2.

Corridor Making Method ........................................................................................................ 7

1.

aPLI Dynamic Certification Corridors

1.1

The dynamic certification corridors for the aPLI are drafted according to the method
established at UNECE level for the FlexPLI.1 2

1.2

Two types of linear dynamic certification tests are performed with each impactor,
the knee test (type I) and the femur test (type II).

1.3

The impactor readings of the femur and the tibia strain gauges as well as the knee
potentiometers shall meet the following certification corridors.

1.4For the knee test (type I):

Certification Corridors upper(Knee Test)
lower

1.5

Femur 3134
101

Femur 2178133

Femur 1208
162

Tibia 1334
291

Tibia 2272
238

Tibia 3
193
160

Tibia 4 ACL PCL MCL
1164816923612

Femur 1
293
233

Tibia 1251
206

Tibia 2228
182

Tibia 3164132

Tibia 4 ACL PCL MCL
8341024633820

For the femur test (type II):

Certification Corridors upper(Femur Test)
lower

Femur 3
190
147

Femur 2238
189

Zander, O: „Refinement of Corridors for FlexPLI Dynamic Assembly Certification
Tests.” Document TF-RUCC-4-04. Available athttps://wiki.unece.org/display/trans/TF-RUCC+4th+session
2Zander, O.: Dynamic Certification Corridors for aPLI according to UNECE Method.
Euro NCAP Document PED-2102-02
1

Version 1.0
April 2021

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2.

Corridor Making Method

2.1

The method for the determination of the type I and type II dynamic certification
corridors is described in TF-RUCC-4-042. The following steps were analogously
followed:a) Definition of reproducibility corridorsa. Determination of individual coefficients of variation (CV) for all
segments of the three master legsb. Determination of segments for drafting the reproducibility corridors(CV < 5%)c. Calculation of pooled means of all segments with CV < 5%
d. Calculation of reproducibility corridors (pooled mean +/-10%)b) Definition of certification corridors
a. Determination of reproducible test resultsb. Determination of individual maxima and minima of all reproducible
segments
c. Determination of corridor limits, considering a scatter in testing of +/5%

2.2Steps a) and b) were followed for both, test type I and test type II.

2.3

Inverse test data from the three master legs (SN01, SN02 and SN03) was generated
in three master labs. Altogether, a set of 21 type I inverse tests and 21 type II inverse
tests was considered for the definition of the inverse certification corridors. Afterfiltering according to the procedure marked out in chapter 2.1, the following results
could be used for the final corridors:

Type I: 21 (MCL: 18)
Type II: 21 (Femur-3: 18, ACL: 15)

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April 2021

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