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

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

 

 

 

 

 

 

Pneumatic Variables

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
ActuationsMap

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


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