Electric Vehicle Crash Course

Explore basic electrical parameters—voltage, current, resistance, and power—from a 12-volt battery to loads like lamps or motors, and apply ohm's law to relate voltage, current and resistance.

Understand basic parameters of mechanical systems, including mass, velocity, force, and displacement, and examine how torque and radius influence rotary motion, friction, and mechanical power.

Calculate average power as work over time to reach speed. A 150 kg mass reaching 5 m/s in 10 s needs about 188 W, suggesting a 250 W motor.

Explore electric two-wheeler motor specifications, including rated power, voltage, current, no-load speed, gear ratio, and efficiency. Learn how input power relates to output power and torque across voltages.

Explore battery specifications, including nominal voltage, under load voltage, and state of charge. Compute energy from voltage and amp hours, and estimate e-bike range from capacity and motor current.

Explore gear ratio calculations for electric bicycles, linking wheel size, motor rpm, and gear/teeth counts to optimize speed and torque while respecting power limits.

Calculate the vehicle's battery range per charge by using ideal range estimates (62.24 km) and adjust to actual range (about 70–80% of ideal, ~50 km) due to non-linear speed–current relationships.

Calculate the electricity bill and cost per kilometre for an electric bicycle: a full charge costs about 4 rupees and covers up to 50 km, about 0.08 rupees per km.

Analyze battery life cycles and replacement costs for lead-acid and lithium-ion cells in electric vehicles, highlighting cycles, range per charge, and lower cost per kilometre for lithium-ion.

Charging time depends on the rate of charge and the battery’s rating and capacity. Higher current enables faster charging, but limits come from the battery, cables, and charging infrastructure.

Prepare the initial project report for an electric vehicle by detailing application, weight, acceleration, and motor controller wiring harness requirements, using the course template.

Learn to calculate the real cost of electric vehicles by separating initial and running costs, evaluating battery and electricity expenses, and using a calculator with a real-world range example.

Calculate the average motor power for electric vehicles from weight and acceleration, using Tata Motors ev models and the electric calculator to relate peak power, instant torque, and practical performance.

Explore building an electric bicycle using a PMDC motor kit, with controller, throttle options, and battery integration to optimize speed, rpm, and controllability.

this lecture explains permanent magnet dc motors (pmdc) and how gearing increases torque, comparing high-speed operation with low-speed, high-torque setups, and noting typical 250-watt ratings for e-bikes and bicycle projects.

This lecture covers pm dc motor testing, measuring current with a dc clamp, zeroing the sensor, and using no-load and loaded currents to diagnose faults and evaluate performance.

Learn how a PMDC controller uses a duty cycle to regulate voltage and control motor speed, with battery, charging, and brake interlock connections.

Learn how a twist throttle uses a 0–5 volt variable output and a duty-cycle controller to regulate motor speed, with wiring options, switches, and testing considerations.

Explore BLDC hub motors for electric bikes, covering 24/36/48 volt variants, 180–280 rpm ranges, gear options, and front vs rear drive with three hall sensors and controller integration.

Explore the BLDC controller for permanent magnet motors, detailing battery, motor terminal connections (green, yellow, blue), sensor interfaces, and features like self-learning, speed sensing, and regenerative braking.

Explore types of electric bicycles, including microbiome concepts and mid-drive BLDC motors, plus pedal-assist versus throttle configurations. Compare purpose-built frames to converted bikes, with focus on comfort, range, and safety.

Understand how pedal assist systems use pedal input to control the motor via cadence or torque sensors, how cadence sensors count pedal rotations, and why regulation may require pedaling.

Electric vehicles reduce CO2 emissions when charged from renewable energy, lower running costs, require less maintenance, and offer quieter operation with flexible charging options.

Explore India's automobile industries, their year-to-year growth, and the role of domestic and foreign manufacturers in boosting exports—about 14.5 billion in 2014—driving the economy.

Examines global momentum toward electric vehicle adoption, including 2030–2040 bans and India's 40–50% electric vehicle target toward green transportation.

examines government initiatives to boost automotive and electric mobility in India, including 100 percent FDI under the automatic route, FAME India subsidies, and a push for local assembly.

Explore India's electric vehicle industry, from Hero Electric and Mahindra Electric to lithium-ion e-scooters and two-wheelers. Learn how industry associations and manufacturing drive India's electric vehicle growth.

Explore India's new ev startups, from Energy Private Limited's Bangalore scooter with app access and charging network to Revolt Motors, Ultraviolet, and Sahara Evolves, highlighting funding, manufacturing, and battery tech.

Explore essential manpower and skills for electric vehicle development, including SolidWorks, mechanical engineering, powertrain, battery management, and testing across design, safety, and autonomy.

Explore the vast potential of the electric vehicle industry across design, manufacturing, assembly, automation, and OEM parts manufacturing, and discover evolving job opportunities in engineering and management in Asia.

Explore road motor vehicles, their classifications, and the transition from ice to electric and hybrid power, with safety as the primary concern in automobile industries.

Explore a mobile phone to smartphone analogy to forecast the electric vehicle future, outlining a three-stage technology transfer, charging challenges, and evolving EV business models.

Coordinate a multidisciplinary team of engineers to define electric vehicle characteristics and integrate motor drive, battery systems, CAN bus communication, charging infrastructure, and autonomy.

Explore the simplified block diagram of an electric vehicle, showing how battery energy converts to motor torque that drives wheel motion, with speed control via the motor drive and accelerator.

Explore the basic electric vehicle parameters, including weight concepts (gross, kerb, payload), dimensions and frontal area, seating and cargo capacity, and performance metrics like speed, acceleration, and range per charge.

Calculate the power weight ratio, the vehicle's power capacity divided by its weight, and see how acceleration rate and power source affect performance in cars, buses, and bikes.

Learn how driving cycles convert speed versus time into standardized test patterns for urban, rural, and highway conditions, including WLTP, FTP-75, and EC 15.

Compare the force speed characteristics of ice-based and electric vehicles, showing how IC engines require variable gears for starting torque, while electric motors achieve high starting torque with fixed gear.

Identify the operating point of an electric vehicle by comparing motor torque to load demand, and explore how driving cycles and road conditions shape torque–speed requirements and motor selection.

Develop a mathematical modeling framework for a vehicle by relating applied force to speed, velocity, and displacement through differential equations, considering drag, gravity, and time-dependent response.

Examine how torque drives the vehicle to a steady speed and reveals the dynamic acceleration from rest, considering drag and friction as the load.