# How do I choose an electric car motor?

Contents

## How do I choose a motor for my electric car?

10 things to consider when choosing an electric motor

1. Vehicle characteristics. …
2. Driving cycles. …
3. Vehicle configuration (electric, hybrid) …
4. Maximal speed. …
5. Maximal torque. …
6. Maximal power. …
7. Battery Capacity. …
8. Battery Voltage.

## What size electric motor do I need for my car?

The common “in the field” estimate of KW power a 9″ motor can handle (for short periods) is 100 KW. So using the above formulas, 144 volt system should be limited to about 700 amps, and the 288 volt system to 350 amps. Still, 135 hp is pretty good for a small car.

## Which motor is best for Electric Car?

Brushless DC Motors

BLDC motors have traction characteristics like high starting torque, high efficiency around 95-98%, etc. BLDC motors are suitable for high power density design approach. The BLDC motors are the most preferred motors for the electric vehicle application due to its traction characteristics.

## How do you determine the engine rating of an electric car?

Mtractive = Ptotal / η= 2.526/0.85=2.97= 3 kW (approximately). For the illustration of selection of power rating for an electric car of 450 kg, a motor with output power rating of 3 kW has to be selected. In this way, power rating required to drive an electric vehicle of particular load is calculated.

## Which is better DC or AC motor?

AC motors are generally considered to be more powerful than DC motors because they can generate higher torque by using a more powerful current. However, DC motors are typically more efficient and make better use of their input energy.

## How do you size a motor?

Divide the motor speed by the required speed and round down to get a starting gear ratio. Then divide the required torque by the gear ratio to find the newly required torque. This will help you narrow the choices down to a few select motors.

## How big is a 100 horsepower electric motor?

General Purpose Motor, 100 HP, 3-Phase, Nameplate RPM 1,775, Voltage 230/460V AC, 404/5T Frame. Country of Origin Varies. Country of Origin is subject to change. NEMA 400 frame three-phase general purpose AC motors have a standard 2-7/8″ diameter, 7-1/4″ length shaft whose center is 10″ above the mounting surface.

## How big is a 50 hp electric motor?

General Purpose Motor, 50 HP, 3-Phase, Nameplate RPM 1,775, Voltage 230/460V AC, 326T Frame. Country of Origin Mexico. Country of Origin is subject to change. NEMA 320 frame three-phase general purpose AC motors have a standard 2-1/8″ diameter, 5-1/4″ length shaft whose center is 8″ above the mounting surface.

THIS IS INTERESTING:  Why does atomic power stations are located in coastal areas?

## Do electric cars use DC or AC motors?

Electric-car Motors and Batteries. Electric cars can use AC or DC motors: If the motor is a DC motor, then it may run on anything from 96 to 192 volts. Many of the DC motors used in electric cars come from the electric forklift industry.

## What type of motors do Teslas use?

There are two main kinds of electric motors used in electric cars, though there are many variations on those themes. Tesla, for example, uses alternating current (AC) induction motors in the Model S but uses permanent-magnet direct current (DC) motors in its Model 3.

## Which type of motors is generally preferred in electric vehicles now?

Electric vehicles use DC collector motors or AC induction motors. A survey published in 2018 conducted over more than 200 vehicles, stated that permanent magnet synchronous motors are majorly used in the EVs. Induction motors are preferable for heavy vehicles such as trucks and sports cars.

## How many kilowatts does it take to drive a car?

According to the Federal Highway Administration, the average American travels nearly 13,500 vehicle miles per year. At that level of driving, most EVs will require around 4,000 kWh of electricity per year to operate.

## How do you calculate the speed of an electric car?

This script determines the approximate road speed possible from an electric vehicle, based on the motor’s published RPM (determined from the full battery voltage), the drive gear (or chain or belt) ratio, and the diameter of the road power wheel.