EV Technology Fundamentals Flashcards
6 cards from real EVITP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 EV Technology Fundamentals flashcards as text
What is the difference between AC and DC charging?
Answer: AC charging converts power inside the vehicle; DC charging converts power externally and delivers DC directly
The location of power conversion differs between the two methods.
What is an onboard charger in an EV?
Answer: The vehicles built-in AC-to-DC converter that charges the battery from AC sources
This converter inside the vehicle changes AC power to DC for the battery.
What factors affect EV charging speed?
Answer: Battery SOC, temperature, charger power rating, and vehicles maximum acceptance rate
Multiple factors on both the vehicle and charger side determine actual speed.
What is battery cell balancing?
Answer: Equalizing charge levels among individual cells for optimal performance and safety
Balancing ensures all cells in a pack operate at similar charge levels.
What is the typical DC fast charging power range?
Answer: 50 kW to 350+ kW
DC fast chargers deliver high power for rapid charging.
What safety features are built into EV charging systems?
Answer: Ground fault detection, over-temperature protection, communication protocols, and automatic shutoff
Multiple layers of safety protection are integrated into the system.