Pneumatic Auxiliaries Editor
Description
The “Pneumatics” tab defines various parameters for pneumatic auxiliaries used on the vehicle:
· Pneumatic Auxiliaries Data/Variables
Data for various pneumatic auxiliaries and the relevant pneumatic variables can be edited in the adjacent text boxes.
· Filepath to the Compressor Map (.ACMP) file
Files can be imported by clicking the browse button adjacent to the “Compressor Map” text box.
· Filepath to the Actuations Map (.APAC) file
Files can be imported by clicking the browse button adjacent to the “Actuations Map” text box.
· The “Retarder Brake”, “Smart Pneumatics” and “Smart Regeneration” and enable via check boxes.
Default Values
The following table provides a summary of the default values that are populated
whenever a new advanced auxiliaries (.AAUX) file is created from scratch. The
table also indicates the editable/default status of the relevant parameters in
the VECTO UI in Engineering mode, and the recommended status in Declaration
mode (not currently implemented). The default values / parameter status has
been agreed with the project steering group.
Default parameter values and editable status for the Pneumatic module
Pneumatic Auxiliaries Data |
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Category |
Default value |
Editable Status by Mode |
Comments |
|
Engineering |
Declaration |
|||
AdBlue NI per minute |
21.25 |
Open/editable |
Locked default |
Only relevant for Pneumatic AdBlue Dosing, also needs drive cycle duration |
Air Controlled Suspension NI/Minute |
15 |
Open/editable |
Locked default |
Only relevant for Pneumatic Air Suspension Control, also needs drive cycle duration |
Breaking No Retarder NI/KG |
0.00081 |
Open/editable |
Locked default |
also needs vehicle weight |
Braking with Retarder NI/KG |
0.0006 |
Open/editable |
Locked default |
Also needs vehicle weight |
Air demand per Kneeling NI/Kg*mm |
0.000066 |
Open/editable |
Locked default |
Also needs vehicle weight and kneeling height |
Dead Vol Blowouts/L/Hour |
24 |
Open/editable |
Locked default |
|
Dead Volume Litres |
30 |
Open/editable |
Locked default |
|
Non Smart Regen Fraction Total Air Demand |
0.26 |
Open/editable |
Locked default |
|
Overrun Utilisation for Compression Fraction |
0.97 |
Open/editable |
Locked default |
Taken directly from White Book |
Per Door Opening NI |
12.7 |
Open/editable |
Locked default |
Only relevant for Pneumatic Door Operation, also needs number of door openings |
Per Stop Brake Actuation NI/KG |
0.00064 |
Open/editable |
Locked default |
Also needs vehicle weight |
Smart Regen Fraction Total Air Demand |
0.12 |
Open/editable |
Locked default |
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|
Pneumatic Variables |
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Category |
Default value |
Editable Status by Mode |
Comments |
|
Engineering |
Declaration |
|||
Compressor Map |
<blank> |
Open/editable |
Locked default |
A number of pre-set defaults will be provided; later value from test procedure. |
Compressor Gear Ratio |
1.00 |
Open/editable |
Open/OEM data |
Related compressor shaft speed to engine shaft speed |
Compressor Gear Efficiency |
0.97 |
Open/editable |
Locked default |
|
AdBlue Dosing |
Pneumatic |
Open/editable |
Open/OEM data |
Pneumatic (/Electric) |
Air Suspension Control |
Mechanically |
Open/editable |
Open/OEM data |
Mechanically (/Electrically) |
Door Operation |
Pneumatic |
Open/editable |
Open/OEM data |
Pneumatic (/Electric) |
Kneeling height millimeters |
70 |
Open/editable |
Open/OEM data |
Used with air demand per kneeling |
Actuations Map |
testPneumatic |
Open/editable |
Locked default |
Determined by passenger stops |
Retarder brake |
Yes |
Open/editable |
Open/OEM data |
Yes (/No) |
Smart Pneumatics |
No |
Open/editable |
Open/OEM data |
No (/Yes) |
Smart Regeneration |
No |
Open/editable |
Open/OEM data |
No (/Yes) |
Controls
Open file
browser for Compressor Map or Actuations Map files
View file contents or navigate to folder
Tick box to activate/deactivate certain options
Save and close
file
Cancel
without saving