Q&A Forum

Anonymous · 2017-12-17T22:32:00Z

Please scroll to the end of this thread to see the latest version.--------Greetings tuners! Software version 3.01.43 was released today. It has a number of important improvements! Here is the list: Ability to compensate for inertia effects for brake dynos. This is an important feature, especially for brake dynos with heavy rollers. During acceleration, power is used to accelerate the inertia, and this needs to be compensated for. Power is now calculated as the sum of the power measured by the brake and the power calculated from the inertia acceleration. The setting is only helpful during acceleration runs, in steady state runs it does not matter. Ability to calculate drive train losses during retardation. This works for inertia dynos, and also for brake dynos with sufficiently heavy rollers. It works by measuring the deceleration during retardation. Using the deceleration and the Moment of Inertia of the system, it calculates the torque loss at each RPM. With this option enabled you get both Wheel HP/Torque and Engine HP/Torque. Wheel HP/Torque is what is being measured, Engine HP/Torque is calculated. Do you wonder how what the MOI of your system is? You can try to calculate using MOI calculators online, however, there is a nice trick to measure it using YourDyno. I will explain in a separate post or help section. A Data connection monitor in the Run window. The status is color coded, and should remain in the green with only momentarily showing yellow/red status. Improved brake control performance. You may need to increase the PID parameters compared to before.Improved print quality.Improved IIR noise filter (keep it on!).Keeps all user settings, like calibration data, when installing new versions of the software (finally, sorry it took so long!)Automatically alerts you if there is a newer version of the software available.A few other minor bugs and cosmetics corrected.Enjoy!Regards,Jostein

[Sticky] Latest software version

Page 54 / 54 Prev

Questions, answers and shared experiences

Last Post by Jostein Fonneland 9 hours ago

800 Posts

91 Users

198 Reactions

568.1 K Views

Jostein Fonneland

(@cmadmin)

Posts: 159

Member Admin

@doctor-542 please contact me at jostein@yourdyno.com or Whatsapp +47 4840 1279. Install Ultraviewer. I will login to your computer and see what is going on.

Same if anyone else has install problems, contact me directly.

Posted : 21/04/2026 2:58 pm

Jostein Fonneland

(@cmadmin)

Posts: 159

Member Admin

Hi,

Quick update that fixes a printing issue and the application not starting on some computers.

UnaVision 4.1.04

Thanks for the feedback.

Posted : 21/04/2026 10:07 pm

bendd

(@bendd)

Posts: 65

Member

Very minor issue Jostein, I get an 'unhandled exception' error that crashes the program if I try to add a custom column name to the database screen/tab.

Posted : 23/04/2026 5:30 am

bendd

(@bendd)

Posts: 65

Member

.......and also if I enter something into the 'Comments' field on the DB screen and exit the program, the comments are lost when the program retarts.

And a question. Is it possible to edit the 'Created On' date on the DB screen? Some of mine are incorrect and I'd like to correct them so I can look back through runs in the correct order to review developent of particular cars over time.

Posted : 23/04/2026 5:52 am

Jostein Fonneland

(@cmadmin)

Posts: 159

Member Admin

Hi folks,

UnaVision 4.1.05 was released now.

Fix: Sometimes runs would not be stored and results would be 0.00

Thanks for reporting!

@bendd, I tried to reproduce your db issues, but it works here. Contact me directly next week and I can login with you and check what is going on

Posted : 24/04/2026 5:24 am

Page 54 / 54 Prev

Q&A Forum

[Sticky] Latest software version

Downloads

Have Questions?

Address

Cameron Jarret