High Precision Logging

While Hybrid Assistant main purpose is helping while driving, its data capture feature can be proficiently used by an expert technician for troubleshooting and fine tuning of engine parameters.
One example is LGP fuel quality evaluation, based on LTFT and STFT.
For this purpose, it's best to enable the High Precision Logging in the settings screen.
This will cause collection of data at the highest possible frequency.

Warning: enabling high precision logging will have a performance hit of about 2.5x.
Use it only when required.

This settings also affect the export data function of Hybrid Reporter.
Trips recorded with High Precision turned on, will produce logs with multiple samples per second.

As always, using a good and fast OBD adapter is highly advised.

Please note that, while performing an HV Battery Check, high precision logging will be enforced automatically.

RPM/Trim/Timing Chart

Following an interesting post on PriusChat, https://priuschat.com/threads/e85-3-gal-e10-7-gal.121314/#post-1730070
a new chart has been added to Hybrid Reporter: you can see efficiency at various RPMs, based on Ignition Timing and Fuel Trims.
Ignition Timing points can also be painted with the BSFC value achieved.
This can be useful when using different fuel types (LGP or E85).

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:

http://www.hybrid-synergy.eu/showthread.php?tid=62430&pid=701071#pid701071

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:
http://mitoyotaprius.mforos.com/1727338/13003776-como-saber-si-dos-combustibles-se-comportan-igual-ejemplo-con-glp/
 https://www.youtube.com/watch?v=ILm8sJrL2R0
and here:
http://www.lpgc.co.uk/index_files/Page736.htm