Hyundai/Kia Powertrain Analysis

User An-IONIQ of the hybridlife.org French forum, has written a deep analysis of the Hyundai/Kia powertrain, using Hybrid Assistant as a measurement tool.
Here is the original work, while an Italian translation, with additional comments courtesy of team member Gabriele, is available on Hybrid Synergy Forum

Gear Assistant

Differently from Toyota and Lexus cars, which have a PSD, Hyundai and Kia have a gearbox.
The gear panel of the new version of Hybrid Assistant, shows the selected gear and a color evaluation of the current efficiency.

The colors of the gear indicator show how you are using battery power in EV mode. It is useful after a pulse with ICE when you maintain constant speed in EV mode.

Try to keep green for low battery drain. 

If yellow appears, speed is increasing and you are slightly discharging the battery more than expected to have a good distance in EV. 

If red appears you are really asking too much battery power and you have to turn on ICE with a short but strong pressure on accelerator, or to decrease speed. 

When ICE is turned on you have always white color. When the battery is recharging (i.e. during regenerative braking) you always have green color.

Measuring charge efficiency

Hybrid Assistant can be used to measure charging efficiency on plug-in cars.
Here's a Ioniq PHEV charging at a wallbox: 3.3 kW out measured at the outlet and 3 kW entering the battery, with a 10% powerloss.

Current Gear Indicator for Niro and Ioniq

The new version of Hybrid Assistant, available on the Play Store, displays the current selected gear on Ioniq and Niro, even while driving in D.
Newer models of Kia and Hyundai car that previously displayed a wrong fuel consumption, now have a consistent indication.

Niro and Ioniq

Hybrid Assistant has now EXPERIMENTAL support for Hyundai Ioniq and Kia Niro.
Only a subset of the Hybrid Assistant features are available for these cars.
For details, refer to the FAQ page