Engine Editor


eng

Description

The Engine File (.veng) defines all engine-related parameters and input files like Fuel Consumption Map and Full Load Curves.


Relatve File Paths

It is recommended to define relative filepaths. This way the Job File and all input files can be moved without having to update the paths.
Example: "Demo\FLD1.vfld" points to the "Demo" subdirectory of the Engine File's directoy.

VECTO automatically uses relative paths if the input file (e.g. FC Map) is in the same directory as the Engine File. (The Engine File must be saved before browsing for input files.)


Main Engine Parameters


Make and Model
Free text defining the engine model, type, etc.

Idling Engine Speed [rpm]
Low idle, applied in simulation for vehicle standstill in neutral gear position.

Displacement [ccm]
Used in Declaration Mode to calculate inertia.

Inertia including Flywheel [kgm2]
Inertia for rotating parts including engine flywheel. In Declaration Mode the inertia is calculated automatically.


Full Load and Drag Curves

Multiple Full Load and Drag Curves (.vfld) can be defined and assigned to different gears. Gear "0" must be assigned for idling and Engine Only Mode.
Use the add and remove buttons to add or remove .vfld files. Doubleclick entries to edit existing configurations.

The input file (.vfld) file format is described here.


Fuel Consumption Map

The Fuel Consumption Map is used to calculate the base FC value. See Fuel Consumption Calculation for details.

The input file (.vmap) file format is described here.


WHTC Test Results

The WHTC test results are required in Declaration Mode for the WHTC FC Correction. The fuel consumption must be defined in [g/kWh] for each test part (Urban, Rural, Motorway) separately.


Chart Area

The Chart Area shows the fuel consumption map and the selected full load curve.


Controls

newNew file
Create a new empty .veng file

openOpen existing file
Open an existing .veng file

save Save current file

SaveAs Save file as...

sendto Send current file to the VECTO Editor
Note: If the current file was opened via the VECTO Editor the file will be sent automatically when saved.

Open file browser.

Open file (see File Open Command).

OKSave and close file
If necessary the file path in the VECTO Editor will be updated.

Cancel Cancel without saving