Combined Alternator Map File (.aalt)
The Combined Alternator Map (.AALT) file contains data
relating to the efficiency of the alternator at various engine speeds and
current demand. The .AALT file is a CSV file containing three fields: “Amp”,
“RPM” (engine speed), and “Efficiency”. It can be created via the select file
button, or an existing map directly imported into VECTO via the File Browser.
A new combined alternator map can be created or an existing one edited using
the Combined Alternators editor module (see below). This module creates a
combined average alternator efficiency map using input data for one or more
alternators (Pully Ratio, Efficiency at different RPM/AMP combinations):
Alternators may be added/deleted from the list. Data for existing alternators can
be loaded into the form by double-clicking on the relevant alternator, and the
data may then be updated and saved back down.
The ‘Diagnostics’ tab provides a summary of the input data and the resulting
combined alternator map:
The methodology for calculating the combined efficiency map is summarised
below:
File Format
The file uses the VECTO CSV format.
Example Configuration for Advanced Alternator Map
Controls
Open file browser
if file not listed, open the Combined Alternator Map file (.aalt) if file is
present
View file contents or navigate to folder
Add button to add a newly defined alternator to the
list
Update
button, to update data for selected alternator in the list
Delete
button to remove alternator from the list
Clear Form button
Save and close file
Cancel
without saving