Related Terminologies

Table of Contents



Table of Contents

Electric cars are slowly gaining acceptance as a viable substitute for conventional gasoline-powered automobiles everywhere in the world. Automotive technology is different for electric vehicles compared to conventional automobiles. An electric car’s motors and battery pack have a significant impact on its performance.

Electric automobiles typically employ either a DC motor or an AC motor. Before we go into each of them, though, there are two important considerations to bear in mind concerning electric car motors in general. The fact that less pollutants are released into the environment while utilising these motors is perhaps their largest benefit. The use of electric motors makes it possible for the vehicle to have zero emissions, thus reducing its carbon footprint. On the other hand,


An AC motor may operate at 240 volts AC and is often a three-phase motor that is powered by alternating current. Regenerative AC motor features may also function as a generator to replenish an electric vehicle’s battery. Along with providing higher acceleration, electric vehicles with AC motors perform better on roads by operating more smoothly on rocky terrain. Even though AC motors are more expensive than DC motors, electric car makers frequently use them, particularly for high-performance automobiles.

These motors’ basic operation is reliant on the laws of magnetism. An AC motor has a shaft that is surrounded by two fixed magnets and a coil of wire. When

The most economical and dependable induction motors on the market today are said to be induction motors. These motors may be controlled in a very straightforward manner. Induction motors don’t need a lot of maintenance because of their straightforward construction.

Unlike induction motors where the rotor rotates at a lower speed than the field, synchronous motors have a rotor that rotates at the same speed as the revolving magnetic field. A number of benefits of PM motors over induction motors include higher efficiency, greater torque and power density, greater torque at lower speeds, smaller design, and less weight.

Electric vehicle DC motors

A DC motor typically operates on any voltage that is between 96 and 192 volts. Additionally, DC motors provide higher torque, which has a cost-saving effect.

DC motors may be divided into three groups: stepper, brushed DC motor, and BLDC or brushless DC motor. Electric side windows in electric vehicles may be extended, retracted, and moved around with the use of brushed DC motors. Due to their inexpensive price, these motors are appropriate for a variety of applications. The brushes and commutators must be replaced frequently because of their continual contact and tendency to wear rather fast.

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A brushless direct current (BLDC) motor uses an electronic commutator instead of brushes, as the name suggests.


Both AC and DC motors serve the same function of supplying electric vehicles with electricity and promoting a better environment. However, employing the former has certain important benefits over using the latter, which is maybe the main reason why the majority of electric vehicle manufacturers use AC electric car motors. Let’s quickly review them.

While programmable, a DC controller is typically not. The motor that AC inverters are offered with is a great match for them, and the driver may change all the software parameters to suit his or her driving style and the batteries.
The AC system is cleverly designed to be able to absorb energy from braking and release it during accelerating. Thus, a big

AC motors were employed in many situations other than electric automobiles before Tesla made them popular. The primary cause may have been the lack of an effective design that could make use of the dynamic, very complex principles that control the fields and currents in AC circuits. Direct current was the norm before Tesla, but DC motors had the apparent issue of complicated current direction reversal. Tesla discovered that AC motors were versatile and long-lasting.


If you’re considering converting your vehicle, the following advice will help you choose the ideal electric motor. One of the most important parts in the construction of an electric vehicle is the motor. With the huge variety of electric motor types on the market today, it is quite reasonable if you become confused. But making a wise choice is crucial if you want to achieve your goals.

First off, many EV fans choose to convert their cars using series DC motors or three-phase AC motors. The increased torque and seamless handling of big loads that DC motors are recognised for. But due to the increased amount of features that AC motors have over previous generations, their availability is currently constantly growing, and they are becoming quite popular.

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