Cars are classified as motor vehicles for a reason: they work with various types of motors. Just as a human body needs its bones and muscles to function smoothly, so does a car needs its engine. Let’s take a closer look at the anatomy of a car and how different machines help it work.
Three Categories of Motors
Depending on the car’s make and model, there could be anywhere between a dozen to about 50 electric motors in its entire system. These motors can be classified into three different categories: performance-related motors, comfort-related motors, and volume motors.
Performance-related motors are those needed for all driving-related operations. Comfort-related motors, as the name implies, are non-essential to driving but are instead used to make the interior more comfortable. Finally, volume motors are low-power motors used in multiple practical applications. Performance-related motors have power ratings from 15 kW to 300 kW, sometimes even up to the thousands of sports and supercars. In contrast, the latter two motor categories usually have power ratings of 5 to 10 W.
If a car is powered by an internal combustion engine (ICE), it needs running fuel. However, that doesn’t mean that it doesn’t need motors. At the very least, it needs a starter motor. Other performance-related automobile engines include engine-cooling motors, cruise control and power-steering motors, fuel pump motors, throttle control motors, and those used in anti-locking brake systems.
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The ICE is usually replaced by either brush or brushless DC motors or AC induction motors in electric or hybrid cars. With these technologies’ help, today’s electric vehicles are up to 80 percent more efficient, less expensive, easier to drive, cleaner, and easier to maintain.
The younger generation may never know what it means to “roll the windows down” because of machines depending on how you can adjust it, say the tilt of the backrest (and even the headrest), the height of the seat, and the distance of the center from the steering wheel, among others.that make the lowering and lifting of windows possible with just the push of a button. Apart from the windows, comfort-related engines in cars include HVAC blower motors, front and back windshield wiper motors, and seat adjuster motors. One seat may have up to five individual
If your car has an automatic sunroof, you can expect that a miniature motor also controls it. And if you have an older model vehicle that still has a CD player, then that’s also another tick in the count of motors in your car. Limousines and higher-end vehicles may also have partitions between drivers and passengers that can be raised and lowered with mini motors’ help.
These may be considered comfort-related motors as well, although volume motors serve more practical purposes. These include door lock motors, mirror motors, washer motors, automatic trunk and hood controllers, and air-conditioning actuator motors. If your car’s instrument panel doesn’t have an LCD or LED display for the speedometer, odometer, and fuel gauge, these also work with the motors’ help.
It’s safe to say that most cars nowadays have at least a dozen motors used for basic operations and a dozen more for comfort. It becomes more difficult to designate a number as the safety, entertainment, navigation, and driver-assistance features also increase. The number becomes even bigger in some luxury and electric vehicles; some Tesla owners have counted at least 50 to 60 motors in their cars. As technology continues to evolve and more people demand more convenient and safer options, we can expect to see more engines in automobiles, whether ICE-propelled or electric.