DEPARTMENT OF MECHANICAL ENGINEERING

  TYPES OF ELECTRIC VEHICLES There are four types of electric vehicles available: Battery Electric Vehicle (BEV) Fully powered by electricity. These are more efficient compared to hybrid and plug-in hybrids. BEVs are also known as All-Electric Vehicles (AEV). Electric Vehicles using BEV technology run entirely on a battery-powered electric drivetrain. The electricity used to drive the vehicle is stored in a large battery pack which can be charged by plugging into the electricity grid. The charged battery pack then provides power to one or more electric motors to run the electric car. Main Components of BEV: Electric motor, Inverter, Battery, Control Module, Drive train Working Principles of BEV: The power for the electric motor is converted from the DC Battery to AC. As the accelerator is pressed, a signal is sent to the controller. The controller adjusts the speed of the vehicle by changing the frequency of the AC power from the inverter to the motor. The motor then connects and leads

Drive train system [ front-wheel drive (FWD), rear-wheel drive (RWD), four-wheel drive (4WD) and all-wheel drive (AWD)] A drivetrain (also frequently spelled as drive train or sometimes drive-train) is the group of components that deliver mechanical power from the prime mover to the driven components. In automotive engineering, the drivetrain is the components of a motor vehicle that deliver power to the drive wheels. This excludes the engine or motor that generates the power. In marine applications, the drive shaft will drive a propeller, thruster, or water jet rather than a drive axle, while the actual engine might be similar to an automotive engine. Other machinery, equipment and vehicles may also use a drivetrain to deliver power from the engine(s) to the driven components. Vehicle’s drivetrain works with the engine to deliver power to the wheels. The most common types of drivetrains are front-wheel drive (FWD), rear-wheel drive (RWD), four-wheel drive (4WD) and all-wheel drive (AW