Why Can a Hybrid Move With Its Engine Off?
Learn why a hybrid can move with its engine off: how electric motor power, battery charge and temperature, and control limits decide when the engine runs.
Batteries, charging, range and living with electrified cars.
Learn why a hybrid can move with its engine off: how electric motor power, battery charge and temperature, and control limits decide when the engine runs.
Learn what hybrid creep at low speed is, how motor torque and brake control produce it, and why hybrid car creep movement differs from one vehicle to another.
Learn why hybrid engine rpm and road speed often don't match: power-split control, battery charging demands, and which behavior is normal versus worth checking.
Learn how a plug-in hybrid spends its electric charge, when the gasoline engine takes over, and why a charge reserve stays in the battery on long highway trips.
Why hybrid regen drops near a full battery: limits on how much charge the battery can accept, more work for the friction brakes, and changes in pedal and lift-off feel.
Learn what a series-parallel hybrid is, how it switches between power paths, how its gearing is controlled, and what it feels like to drive.
Learn what a parallel hybrid is: how the engine and electric motor share the driveline, how the two are coupled, and how the control system splits torque between them.
A series hybrid uses its engine only to make electricity while an electric motor drives the wheels. Learn how the generator, motor drive, and energy path work together.
Learn how hybrid torque blending turns one pedal request into a coordinated split between electric motor and engine, and how control logic keeps transitions smooth.
Learn what a hybrid power split device is, how its planetary gearset links the engine and two motor-generators, and which operating modes it enables.
Learn why a hybrid engine restarts while stopped: cabin heat demand, battery charge management and system needs such as emissions warm-up, explained clearly.
Learn how hybrid engine shutdown logic weighs battery state of charge, driver demand and temperature to decide when the gasoline engine can switch off.
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