Introduction to the Automotive Sector and EV Ecosystem
What this domain covers
The exam checks whether you can place an EV workshop inside the wider automotive sector. You need to name vehicle types, identify EV subsystems and explain how industry, policy and services connect.
Core rules and concepts
- Powertrain types: BEV (battery only), HEV (engine plus battery, no plug), PHEV (plug plus engine), FCEV (hydrogen fuel cell).
- EV ecosystem: vehicle OEM, cell/pack manufacturer, motor and power-electronics supplier, charging operator, workshop, insurer, recycler and training body.
- Main EV assemblies: HV battery pack with BMS, traction motor, inverter/controller, reducer/differential, onboard charger, DC-DC converter, thermal management and HV harness.
- Indian context: demand incentives under FAME/PM E-DRIVE, PLI for advanced chemistry cells, state EV policies, battery waste rules and rising public charging.
- Work roles: an EV service assistant supports senior technicians, identifies components, follows checklists and escalates HV work.
Worked example
A car has a 1.5 kWh battery, a petrol engine and no charging port. Classify it. Reasoning: no port means it cannot be a PHEV; a petrol engine means it is not a BEV; the small battery supports the engine. Answer: HEV. If it had a 10 kWh battery and a charging port, it would be a PHEV.
Traps that cost marks
Do not call every EV zero-emission; grid electricity may come from coal. Do not confuse HEV with PHEV. Do not say EVs have no gearbox - most use a single-speed reducer. Do not mix the onboard charger (AC to DC) with the motor controller (DC to AC). Do not treat battery recycling as optional; India's Battery Waste Management Rules make producer responsibility central.