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Motors and Controllers for Electric Vehicles

In this free online course, learn the engineering principles to design a motor and controller for an electric vehicle.

Publisher: NPTEL
The electric motor will replace the internal combustion engine within the next few decades. If you are an automotive engineer, it is crucial that you understand how electric motors for electric vehicles are designed. This course will help you understand the engineering principles for electric motors and controllers. Take this free online course today, and learn about the fascinating field of motors and controllers for electric vehicles.
Motors and Controllers for Electric Vehicles
  • Duration

    6-10 Hours
  • Students

    233
  • Accreditation

    CPD

Description

Modules

Outcome

Certification

View course modules

Description

Most car manufacturing companies have declared that all if not most of the vehicles they will produce will be electric vehicles within the next two decades. Soon, the internal combustion engine will become obsolete, kept around only for car enthusiasts and collectors. Therefore, if you are an engineer for the automotive industry, your future career depends on your electric vehicles’ knowledge. This course will help you understand how electric motors are designed and built and will give you the tools you need to take your career to the next level. The first thing you will learn in this course is energy flow. Every electrical and mechanical engineer needs to understand how Ohm’s law and Kirchhoff's first and second law work. This course will review these laws as you study how they apply to the flow of electric, thermal, and magnetic energy. You will determine how to convert the electric energy from a battery into mechanical energy inside a motor. You will understand how this energy is used to produce torque inside an electric motor, how a gearbox works to multiply torque, and you will learn to calculate energy losses and energy efficiencies.

You will then analyse the production of torque in more detail using  a PMDC motor design, such as a motor that operates in DC with permanent magnets that create a magnetic field for operation. You will investigate the physics that creates torque inside this motor by learning to calculate torque using the different force vectors produced by the electric current and the magnetic flux. You will also consider the role that computation plays in the production of torque inside an electric motor. You will then explore a motor with higher torque, smaller frame size, and no rotor current, known as a PMSM motor, or a permanent magnet synchronous motor. You will discover  two types of PMSM motors, how these motors operate using AC, how the windings are in the stator, and how electronic switching is used to control commutation, making the PMSM motor the motor of choice for electric vehicles. As you study how torque is produced inside a PMSM motor using the d-q frame theory, you will learn how to design a field-oriented control, calculate three-phase circuits, and the role of Park and Clarke transforms and their inverse to calculate currents.

Afterwards, you will ascertain how to create a thermal profile for the motor. You will go back to Ohm’s law and use what you know about the flow of thermal energy and combine it with a theory known as Norton’s theorem. While Norton’s theorem is used for electrical circuits and electrical resistances, you will use it to calculate the flow of heat linearly, from the source outwards, taking into account the resistance of different materials to improve these resistances along the way. This thermal profile will help you judge whether the peak temperatures produced by your motor’s design meet the requirements and limits established by international standards. While it is unnecessary to have a background in electrical or mechanical engineering, having some electromechanics knowledge will help you understand this course. If you are studying automotive engineering, this course will give you a head start, or if you are already in the industry, this course will take your career to the next level. So do not hesitate, take this course motors and controllers for electric vehicles today!

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