In a Series Hybrid Electric Vehicle (HEV), 
the internal combustion engine (ICE) doesn't   directly drive the wheels. Instead, it 
acts as a generator, producing electricity.  Here's how it works:
The IC Engine runs to produce   electricity. This electricity either powers 
the electric motor or charges the battery,   depending on the vehicle's needs.
When you need power for acceleration   or maintaining speed, the electric motor uses 
electricity from the battery to turn the wheels,   Whereas Excess electricity generated 
by the IC Engine can be stored in the   battery for future use, like during 
acceleration or low-speed driving.  Series HEVs also incorporate regenerative 
braking, which captures kinetic energy   during braking and converts it into 
electricity to recharge the battery..

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