Engine Stage Assistant

If you are driving a 3rd generation HSD car, like Auris, Yaris, or Prius 3, you can take advantage of the Engine Stage Assistant.
On screen indicators will help you perform a better S1 and to correctly switch to S4

Enable subtitles on the following videos to read instructions.




Introducing the Engine Stage Assistant

The new release of Hybrid Assistant, for selected car models (Yaris, Auris, Prius3), will advise you about the engine stages. 
At car power-on, a "Play" icon will appear on the engine icon if the engine needs to be warmed up and will start in a few moments. 
You can prevent it by switching to N or selecting EV mode. 

When the right conditions for an idle check are met, a "Pause" icon will show up. 
If you begin to coast, the engine will perform the idle check and will switch to stage S4.


"HA Tips" - a video serie for HA users

With the help of an appassionate user, Robikinkela, from Hybrid Synergy Forum, the team is developing a serie of short videos with the goal to help the new user of HA to learn the application features.
The videos will be periodically published on the YouTube channel of Hybrid Assistant. A new video shall be broadcasted once per week.

The first video, an introduction to Hybrid Assistant, is ready for You on YouTube: "Using the App"

Subscribe to the Hybrid Assistant YouTube channel and stay tuned for new "HA Tips"


A new member joins our Team

The Hybrid Assistant team is growing: Davide Vitali is joining our team.
Davide is an experienced Android developer, with a long list of released apps.
Check his page at @Appsbydavidev.dev or at http://dev.appsbydavidev.it/
The new version of Hybrid Assistant already features his contributions:
- crash dump reporting: if an error occours, HA will ask for permission to send a dump to the developers
- new settings menu
- new settings page
- multilanguage translation (English, Italian, French, German, Spanish)
Other minor enhancements include:
- accelerator position is now displayed
- accelerator color is based on CHG/ECO/POWER meter
- fix for false readings on Prius Prime
- support for Toyota Highlander
- better detection of ICE spinning


LGP tweaking

A creative user from Hybrid Synergy Forum has found a way to use Hybrid Assistant for checking an LGP modified engine that was behaving erratically.
Using the fuel trim chart he helped the tech support to correct settings of the engine LGP control unit.

Full story is available here:

By his suggestion, the new version of Hybrid Reporter now charts fuel trim corrections for each RPM range of the engine.

Here is the map of the misbehaving engine, with very high trims at high RPMs

After tweaking, the trims are back to lower values


LGP fuel quality evaluation

Joshue Martín de Blas, a long time friend of Hybrid Assistant, has put to good use the Fuel Trim charts of Hybrid Reporter.
In his own words:

These 2 Fuel trims graphics are of the same trip, but with different LPG brand. It's clear that in one case the effective Fuel Trim is bigger (and the fuel consumption higher also), because the ECU needs to make much more corrections tho the injection time.

some more information on fuel trims may be found here:
and here: