Hyundai Sonata Hybrid 2021 Owner's Manual page 22

Engine generation
When the vehicle is stopped, the high-
voltage battery is charged up by the
engine.
(Engine → Battery)
Regeneration
The high-voltage battery is charged up
by the regenerative brake system.
(Wheel → Battery)
Engine brake
ODN8HQ019005L
The engine braking is used to decelerate
the vehicle.
(Wheel → Engine)
Power reserve
ODN8HQ019007L The engine is simultaneously used to
drive the vehicle and to charge up the
high-voltage battery.
(Engine → Wheel & Battery)
01
ODN8HQ019010L
ODN8HQ019008L
1-19