Additional codes for aPLI overload cable indicator channels

[DiVe]

This request was started by E-Mail and the current state of the topic is summarized here for
the discussion of the additional codes to be added.

On the aPLI there are three overload cables in the Femur and Tibia parts of the leg impactor.

Segment cables.png (114.29 KiB) Viewed 1297 times

(taken from cellbond manual)

For these cables there exists instrumentation to detect the activation of the cables.
So, the base coding for these measurements should be:

Code: Select all

 D0 FEMR ?? ?? PM EV0P
 D0 TIBI ?? ?? PM EV0P

The important part of the discussion is about the fine location coding of the three cables.
The leg will be used to test the vehicle front and will simulate the right-side impact of the right leg.
Therefore, the y-direction of the leg is the impact direction.

Dummy coordinate system.png (88.58 KiB) Viewed 1297 times

(taken from cellbond manual)

The naming of the fine location could now be realized with two concepts:
A) referencing the coordinate system of the leg impactor (dummy)
B) referencing the impact direction

The B variant might be easier to adopt and more intuitive for the users of the leg,
while variant A is more consistent with the dummy coordinate system and the simulated accident condition.

The following coding proposals are available for the discussion:

related to variant A (dummy coordinate system, x direction is front)

Code: Select all

 D0 FEMR FR 00 PM EV 0P
 D0 FEMR RI 00 PM EV 0P
 D0 FEMR RE 00 PM EV 0P
                     
 D0 TIBI FR 00 PM EV 0P
 D0 TIBI RI 00 PM EV 0P
 D0 TIBI RE 00 PM EV 0P

Variant A.png (95.25 KiB) Viewed 1297 times

or a variant proposed with using In/Out regarding the dummy coordinate system

Code: Select all

 D0 FEMR IN FR PM EV 0P
 D0 FEMR OU 00 PM EV 0P
 D0 FEMR IN RE PM EV 0P
                     
 D0 TIBI IN FR PM EV 0P
 D0 TIBI OU 00 PM EV 0P
 D0 TIBI IN RE PM EV 0P

Variant A2.png (95.69 KiB) Viewed 1297 times

related to variant B (impact direction, y direction)

Code: Select all

 D0 FEMR FR 00 PM EV0P
 D0 FEMR RE LE PM EV0P
 D0 FEMR RE RI PM EV0P

 D0 TIBI FR 00 PM EV0P
 D0 TIBI RE LE PM EV0P
 D0 TIBI RE RI PM EV0P   

Variant B.png (104.27 KiB) Viewed 1297 times

A final discussion and decision are needed, before we
can add this to the database and figure.

Kind regards,
Dirk

[DiVe]

Follow-up from the Task Force Meeting in November 2023:
The option A2 is the preferred one.

Variant A2.png (95.69 KiB) Viewed 1279 times

It will respect the dummy coordinate system and the OU and IN coding still gives
a correlation to the impact direction:

Code: Select all

 D0 FEMR IN FR PM EV 0P
 D0 FEMR OU 00 PM EV 0P
 D0 FEMR IN RE PM EV 0P
                     
 D0 TIBI IN FR PM EV 0P
 D0 TIBI OU 00 PM EV 0P
 D0 TIBI IN RE PM EV 0P

There is one variant under discussion to code the single "outer" cable with the FL2 code "MI" instead of "00":

Code: Select all

 D0 FEMR IN FR PM EV 0P
 D0 FEMR OU MI PM EV 0P
 D0 FEMR IN RE PM EV 0P
                     
 D0 TIBI IN FR PM EV 0P
 D0 TIBI OU MI PM EV 0P
 D0 TIBI IN RE PM EV 0P

Variant A2.2.png (95.97 KiB) Viewed 1279 times

Please comment any objections or ideas.
In the next meeting we will finalyse these codes.