Electric Vehicle (EV) Technologies for Mechanical Engineers

Explore how electric powertrains deliver instant torque with lower maintenance than internal combustion engines. Highlight zero tailpipe emissions, Tesla and other automakers, and battery costs and charging needs.

Explore how batteries use anode, cathode, and electrolyte to drive electron flow and ion transfer, and distinguish primary from secondary cells, cell voltage, and discharge.

Understand how cells with an anode, cathode, and electrolyte store energy through electrochemical reactions, and review nickel cadmium, nickel metal hydride, lithium ion, and alkaline primary batteries.

Examine the four types of electric vehicles—battery electric vehicles (BEV), hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV), and fuel cell electric vehicles (FCEV)—and their working principles.

Lithium batteries power a wide range of devices with light weight and high energy density, using lithium ion chemistry with cobalt oxide cathodes and graphite anodes, and supporting electric vehicles.

Explore the differences between alternating current and direct current, how electrons flow, and why AC powers homes while DC drives most electronics, with converters and rectifiers explained.

Explore how hydrogen fuel cell electric vehicles power electric motors with onboard fuel cells that convert hydrogen and oxygen into electricity, producing zero tailpipe emissions and water vapor.

Explore how power electronics, including inverters and DC-DC converters, optimize energy flow in EVs, control motor speed and torque, and power vehicle subsystems such as heating, lighting, and infotainment.

Explore power electronic converters for electric vehicles, including rectifiers, inverters, DC-DC converters, and AC-AC converters, and their roles in voltage regulation and motor control.

Explore how batteries store chemical energy and convert it to electric energy, detailing anode, cathode, and electrolyte, and distinguishing primary and secondary batteries and common types.

Explore electric storage in vehicles, comparing lithium ion and hybrid nickel metal batteries, their energy density, charging via regenerative braking, and environmental benefits for EVs and hybrids.

Compare battery vs fossil fuel by examining lithium-ion batteries' high energy density and long life for EVs, reducing CO2 emissions while considering manufacturing impacts and material supply.

Explore how battery management systems monitor charging and discharging, balance cells, and protect lithium ion packs to optimize safety, longevity, and performance, including state of charge and health.

Explore how battery management systems monitor lithium-ion packs, compute state of charge and health, protect against overheating, manage charging, and communicate vehicle status for safe, reliable EV operation.

Explore the three ev charging levels, from level one at home to dc fast chargers. Learn networks like Tesla superchargers and Electrify America, plus adapters and availability.

Explore the three ev charging levels—level one, level two, and level three—covering power ranges, charging speeds, and where each is best used, from home outlets to dc fast charging.

Identify the four EV charging connectors and compare DC fast charging with level two charging, including Chademo, CCS, and Tesla standards, plus the role of adapters.

Compute home charging cost by multiplying your car's kWh per 100 miles by your electricity rate. Overnight charging saves up to 30%, while public DC fast charging is pricier.

Discover how DC fast charging bypasses the onboard charger to deliver direct DC power for faster charging. Explore connectors, adapters, and vehicle-battery communication that enable safe high-speed charging.

Explore how AC charging uses the onboard charger to convert AC to DC for the battery, and how the onboard charger's capacity and grid conditions determine charging speed.

Explore how rapid charging, smart charging, and AI-driven innovations are accelerating electric vehicle adoption, from affordable batteries and lower-cost tech to scalable OEM production and smart grid charging.

Explore solar vehicles powering electric propulsion with photovoltaic panels and batteries, showing how a 400 W panel for 5 hours can boost range to about 140–160 km.

Explore wireless charging for electric vehicles, including static charging from parking spots or garages and dynamic charging while driving, using transmitter and receiver coils, resonance frequency, and compensation networks.

Battery swapping enables quick replacement of a depleted battery at a swap station, reducing charging time and range anxiety for fleets, with potential cost savings via battery leasing.

Explore onboard and wireless charging for plug-in hybrids and battery electric vehicles, compare level one to three-phase ac charging, and note regenerative braking adds charge during deceleration.

Explore smart charging for electric vehicles, linking EVs, chargers, and operators via cloud-based management to remotely monitor and optimize energy use, support renewables, and enable vehicle-to-grid capabilities.

Explore vehicle to grid (V2G) technology, where plug-in electric vehicles deliver demand response to the grid, powering homes or buildings and charging back during low demand for grid balancing.

Explore how automakers incrementally add active safety and self-driving features, mapped to SAE levels 0–5, from full human control to full automation.