How Do Electric Cars Work?
Electric vehicles are high-tech and great for the environment. Here's what makes them go.
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Electric vehicles are high-tech and great for the environment. Here's what makes them go.
Puff, puff, puff, puff…there goes another gas-powered car, blasting pollutants and toxins into the environment.
Driving is a mundane part of everyday life, so it’s easy to forget that fuel-based vehicles are burning harsh byproducts while expelling greenhouse gases. Those carbon-dioxide emissions are not only harmful to the environment—they also put human health at risk. Sorry to be a bummer.
The good news? There’s an alternative.
It’s no wonder more and more car companies are launching electric car models. While Tesla is the brand most popularly associated with electric vehicles (EVs), Audi, Ford, and Kia are other well-known car manufacturers who have decided to dive into the electric vehicle space. Even Ford pick-up trucks are being reimagined as EVs.
You don’t have to be tech-savvy or rich to whip around town while reducing your fossil fuel emissions in an environment-friendly car. Drivers with all kinds of budgets can find an electric car that falls in their ideal price range.
But how do electric cars actually work? We’ll get into the details below, and also help you decide if an EV is right for your lifestyle.
Electric cars are vehicles with a large battery that use electricity to power the motor instead of traditional gasoline. Electric cars are fully powered by electricity whereas hybrid cars run on a combination of electricity and conventional fuel.
Similar to gas cars, EVs can only go so many miles before they need to be refueled. However, since EVs are fueled by electricity, they need to be recharged. On average, EVs can run for 250 miles per charge, though certain Tesla models can travel up to 350 miles per charge.
EVs have a unique battery that stores electricity to power the motor, and can simply be plugged in to recharge.
These vehicles do not require an internal combustion engine to run because they operate strictly with electric motors and rechargeable batteries. They’re also gentler on the ears. While internal combustion engines produce a loud, sometimes muffled sound due to the expansion of gas, EVs are much quieter because their motors aren’t burning up gas.
Conventional gasoline vehicles use materials like petrol and diesel, containing harmful chemicals and toxic pollutants. Gas-powered cars and trucks emit so much carbon dioxide that our planet is feeling the negative effects. Compared to gas cars, electric cars are more environment-friendly due to the use of little or zero fossil fuels.
Electric vehicles not only save you money on gas and maintenance, but they also reduce carbon emissions. Because EVs do not utilize fossil fuels, that means they are not emitting air pollutants.
The science of EVs can seem mysterious. With no engine, radiator, carburetor, or spark plugs, how do electric cars work?
The components of an electric car are a little different than what your traditional vehicle uses to drive and operate.
EVs have a battery, motor, and charging port for optimal performance. Let’s break down the key components of an EV.
EVs run off of a lithium ion battery that powers the motor using stored electricity.
The higher the electric output of the battery, measured in kilowatts, the higher the power range. Translation: With a higher maximum battery capacity, you will be able to drive longer distances in your EV. On average, an electric car uses 30 kW to travel 100 miles.
One of the most important components of electric cars is the charge port. Similar to your cell phone, without the charge port, the battery can’t recharge.
The EV battery needs to receive external power to perform its duties. Charging stations or electric vehicle supply equipment (EVSE) source the battery juice.
You can use a commercial or personal residence charging station to reload your battery. Household charging ports are beneficial for charging your electric car overnight.
A car’s drivetrain connects the engine to the wheels, which enables the vehicle to move. The drivetrain on EVs is powered by electricity to provide an emission-free system.
Traditional combustion engines use multiple transmission lines instead of the powerhouse system used in EVs. In an EV, the motor and drivetrain share the same housing unit. That helps reduce the number of electric car components, optimize efficiency, and reduce the system’s weight.
In short, instead of using several systems for the transmission (as gas cars do), EVs utilize a single, streamlined system.
The inverter converts the electric current of the battery pack from a direct current (DC) to an alternating current (AC) to power the motor.
Lithium ion batteries only accept DC power, but EVs require AC to function properly.
The inverter controls the frequency of the AC power circulating to the electric vehicle’s motor, which manages the EV’s speed.
Electric vehicles do not have a standard four-cylinder motor, and instead are powered by an electric traction motor. The motor operates on electricity received by the inverter.
Electricity is sent to the electric car’s battery, moving along to the rotor, which then circulates the electric forces to the wheels.
More electricity leads to smoother acceleration and deceleration.
Now that you know a little about how electric cars work, let’s go over the charging process.
EV owners can fully charge their cars around town at any convenient charging stations, or they can purchase their own charging unit for their home.
The different types of chargers are:
The time it takes to charge an electric car ranges from 15 minutes to 40 hours, depending on your charging method, current battery level, and the weather.
Some drivers can get back on the road after only 30 minutes of charging. However, most electric car drivers will need around 40 hours to charge a fully empty battery if they are using a three-prong plug.
Severe weather changes can sometimes factor into your electric car charge time. Brutally cold temperatures can drastically add to your charging time, while scorching hot weather can affect the thermal management and overall efficiency of your vehicle due to higher chemical reactions in lithium ion batteries.
Keep in mind that your electric vehicle has its own maximum charging rate that is static, so you might not save any time if you fuel your battery at a high-power charging station.
While you’ll save money on fuel and may have less car maintenance with an EV, what about the initial cost and charging times? Before you go out and purchase an EV, it is important to understand the pros and cons of electric vehicles.
Buying an electric vehicle is a huge investment. Before you jump into test drive mode, think long and hard about how electric cars work and if an EV is right for you. (We’ll get into the levels of charging stations a bit later, but before going through the flowchart below, know that the typical level 2 EV charger for your home costs around $TK.)
Ready to really nerd out? There are three levels for charging your electric vehicle: level 1, level 2, and level 3 EVSE charging.
TL;DR: Level 1 charging provides the slowest type of charge and is best for drivers who will charge at their homes or won’t need to drive their EVs long distances.
Level 1 charging is the slowest type of EV charge and is used by most plug-in hybrid electric vehicles and some EVs. The level 1 charger is a three-prong plug with a standard 120-volt AC outlet.
Level 1 charging equipment is used in household environments as opposed to commercial. Users can expect to receive an average of 1.3 kW to 2.4 kW power per hour, which is equivalent to roughly three to five miles of range for your EV. You can add 30-50 miles of EV range with an overnight charge, but an empty battery will take over 24 hours to charge fully.
TL;DR: Level 2 chargers are best for drivers who need a faster charge, drive more miles, and want the flexibility to charge at their homes or in public places.
The most useful type of electric car charging is level 2, because it is the fastest for at-home use.
Level 2 socketed and tethered charging equipment for electric cars uses 208 to 240 volts and can produce three to 19 kW of AC power. With this form of charging, your car can charge 18-28 miles per hour, and in four to eight hours, your EV can be fully charged.
Almost every electric car and plug-in electric hybrid vehicle is compatible with level 2 charging. Users can install a level 2 charging system in their homes or visit a public electric vehicle wall charger location.
Charging tip: Colder temperatures can increase your charge time, so plan accordingly if you are traveling.
TL;DR: Level 3 EVSE chargers are best for drivers who need to recharge in a matter of minutes but due to their high price point, aren’t as common in public places or homes.
Level 3 electric vehicle supply equipment (EVSE) is sometimes referred to as DC fast charging due to the fact that it can recharge a car in roughly 30 minutes.
The combined socketed and tethered charging system rapidly recharges your EV an average of three to 20 miles of range per minute. This is the ideal situation for individuals on the go with speedy schedules.
While level 1 and level 2 charging systems use alternating current, DC charging uses direct current. The higher voltage costs tens of thousands of dollars, which is why it’s rare to find one at apartment and condo complexes, and inside personal garages.
When discussing EVs, it’s important to understand the four main types of electric cars: battery electric vehicle (BEV), plug-in hybrid electric vehicle (PHEV), hybrid electric vehicle (HEV), and hydrogen electric vehicles (fuel cell).
Let’s dive right in and see how these electric cars work and what makes them unique.
A battery electric vehicle (BEV) is categorized as a fully electric car powered exclusively by electricity.
They have an electric car motor that draws current from the electric battery without the use of a conventional internal combustion engine.
Since BEVs rely solely on electricity, they require larger-capacity electric car batteries and typically have a higher selling price.
When you combine an electric car motor and battery with a conventional internal combustion engine (ICE), you create a plug-in hybrid electric vehicle (PHEV).
The unique feature of PHEVs is they can switch the ICE off and run entirely on electric mode. PHEVs also have larger and more powerful battery packs and electric motors than standard HEVs.
PHEV owners can choose between topping off with fuel or electricity. A PHEV can operate on gasoline alone if the electric battery isn’t charged, or they can use the battery charge if they run out of fuel.
A hybrid electric vehicle (HEV) uses a combination of fuel and electricity to satisfy drives who aren’t ready to commit to fully electric cars.
HEV owners often use the electric features for stopping and accelerating and prefer to use the internal combustion engine when cruising down the freeway. When conditions are suitable, the electric motor will automatically activate and recharge through regenerative braking.
Hybrid point: HEVs can only top off with traditional fuel and cannot be recharged like PHEVs and BEVs.
Hydrogen electric vehicles (fuel cell) are similar to battery electric vehicles (BEV) in the sense that they only use electricity for power.
The fuel cell electric vehicles create their own energy through a chemical reaction with the use of hydrogen. These cars can be filled with hydrogen and do not require a standard charging system for electricity.
You don’t have to be clairvoyant to see that the future of the automobile industry is in electric cars.
Tesla is producing record-breaking numbers, and popular manufacturers are aiming to create more cost-effective electric vehicles.
As we enter 2022, here are a few trends in the EV industry you can expect to see.
It’s one thing to know how electric cars work, but it’s another to understand how to protect your EV. Consumers are quick to purchase an electric car for the environmental benefits, fuel-saving properties, and high performance without knowing the cost of insurance. EVs are huge investments, which is why you need to protect your vehicle at all costs.
The higher initial price of an electric car results in a more expensive car insurance plan due to high replacement costs. Electric car insurance providers know they will have to pay more to replace an EV than a conventional car.
Thankfully, Lemonade is here to help protect your car while you help protect the environment. We provide fair rates based on your actual driving performance, offer the most discounts and savings for electric cars, and automatically apply a discount when you bundle any of our products with your electric car insurance.
Our electric car insurance is also packed with extra insurance coverages. And the best part? We plant trees as you drive, to help clean up after your emissions. More on that exciting program here.
Click below to get started with your quote—if you live in Illinois—or to add your name to our mailing list and find out when Lemonade Car rolls into your state.
And here’s a handy, all-in-one infographic if you’d like to spread the word about how electric cars work and where the industry is heading!
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