Trystan Casey
Electric vehicles (EVs) are becoming an increasingly common sight on roads around the world. There are four main types of EVs: battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs), hybrid electric vehicles (HEVs), and fuel cell electric vehicles (FCEVs). Each type of EV has its own unique characteristics, advantages, and drawbacks, and understanding these differences is important for prospective EV buyers. BEVs are fully electric vehicles with rechargeable batteries and no gasoline engine, while PHEVs and HEVs combine an engine with an electric motor, and FCEVs use hydrogen gas to power an electric motor.
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What You'll Learn
- Battery Electric Vehicles (BEVs) are fully electric vehicles with rechargeable batteries and no gasoline engine
- Plug-in Hybrid Electric Vehicles (PHEVs) have both an engine and an electric motor
- Hybrid Electric Vehicles (HEVs) are low-emission vehicles that use an electric motor to assist gas-powered engines
- Fuel Cell Electric Vehicles (FCEVs) use a highly efficient electrochemical process to convert hydrogen into electricity
- Electric micromobility devices are another type of electric vehicle
Battery Electric Vehicles (BEVs) are fully electric vehicles with rechargeable batteries and no gasoline engine
Battery Electric Vehicles (BEVs), also commonly referred to as EVs, are fully electric vehicles that run on electricity sourced from rechargeable batteries, without the need for a gasoline engine. This means that BEVs are zero-emissions vehicles, producing no harmful tailpipe emissions or air pollution hazards associated with traditional gasoline-powered vehicles. BEVs are powered by one or more electric motors, with energy supplied solely by the battery pack, which can be recharged from the grid.
BEVs are highly fuel-efficient, with 90% fewer moving parts than internal combustion engine vehicles, making them more affordable to maintain. They are also capable of fast charging, with most BEVs supporting L2 charging. In terms of range, almost all BEVs can travel at least 100 miles on a single charge, with newer models offering an all-electric range of 200-300 miles or more. BEVs are available in a range of vehicle types, including compact cars, sedans, SUVs, pickup trucks, and buses. Popular BEV models include the Volkswagen ID.4, Volvo C40 Recharge, and Volvo XC40 Recharge.
The cost of BEVs can vary, with prices ranging from $30,000 to $100,000. However, popular options like the Tesla or Chevy Bolt start at under $40,000. Additionally, some BEVs may qualify for federal tax credits, further reducing the cost. BEVs typically come with a standard 120-volt Level 1 charger, but owners have the option to utilise Level 1 (AC) or Level 2 (AC) charging. Level 1 charging involves plugging the provided cable into a domestic socket and charging overnight. Level 2 charging uses the same cable but allows for faster charging at adapted home sockets, workplaces, or commercial EV charging stations.
It is worth noting that BEVs are just one type of electric vehicle (EV) available on the market. Other types include Plug-in Hybrid Electric Vehicles (PHEVs), Hybrid Electric Vehicles (HEVs), and Fuel Cell Electric Vehicles (FCEVs). PHEVs and HEVs differ from BEVs in that they have both an engine and an electric motor, allowing them to run on conventional fuel or electricity. FCEVs, on the other hand, use fuel cell technology to convert hydrogen into electricity, powering the electric motor.
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Plug-in Hybrid Electric Vehicles (PHEVs) have both an engine and an electric motor
Plug-in Hybrid Electric Vehicles (PHEVs) are a type of electric vehicle that combines an internal combustion engine (ICE) with an electric propulsion system. PHEVs can be powered by conventional fuel (such as petrol or gasoline) or alternative fuel (such as bio-diesel), as well as by a rechargeable battery pack. This gives PHEVs the ability to drive in pure electric mode for a range of around 20 to 50 miles, producing zero tailpipe emissions. Once the battery is depleted, the ICE kicks in, allowing the vehicle to extend its range beyond what the electric motor alone can achieve.
PHEVs have several key components that enable them to function. Firstly, they have an internal combustion engine, which is a traditional gasoline or diesel engine that provides additional power when the battery's charge is low or during high-demand driving situations. Secondly, they have an electric motor, which powers the vehicle during all-electric driving and can also work alongside the gasoline engine to improve fuel efficiency. Thirdly, PHEVs have a high-capacity battery that stores the electricity used to power the electric motor. This battery can be recharged through regenerative braking, where energy generated during braking is captured and used to recharge the battery, as well as by plugging into an external power source.
The ability to utilise multiple power sources gives PHEVs several advantages over other types of electric vehicles. One advantage is their extended range compared to fully electric vehicles, as they are not limited by battery capacity alone. This addresses the issue of "range anxiety", where drivers are concerned about the limited range of electric vehicles and the insufficient charging infrastructure. By combining electric and combustion power, PHEVs offer a popular alternative that reduces concerns about being stranded with a depleted battery.
Another advantage of PHEVs is their environmental benefit. Even though they use a combustion engine, PHEVs can still achieve zero tailpipe emissions when operating in pure electric mode. This helps to reduce carbon emissions and improve overall fuel efficiency, particularly for short-distance trips that can be powered solely by electricity. Additionally, PHEVs offer cost savings for drivers by utilising electricity for daily trips, with the convenience of charging at home or on the go.
PHEVs are available in a range of models to suit different needs and preferences. Some popular options include the Peugeot 208, Kia Sportage, Renault Captur, and Citroën C5 Aircross. PHEVs are also offered by luxury brands such as Porsche, BMW, and Mercedes, showcasing the versatility and widespread adoption of this technology.
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Hybrid Electric Vehicles (HEVs) are low-emission vehicles that use an electric motor to assist gas-powered engines
Hybrid Electric Vehicles (HEVs) are a type of low-emission vehicle that couples a conventional internal combustion engine ( ICE) with one or more electric motors. HEVs are powered by an internal combustion engine and an electric motor, which uses energy stored in batteries. The electric motor assists the gas-powered engine, and the vehicle uses regenerative braking and the internal combustion engine to charge. The battery can also be charged through regenerative braking, where the electric motor acts as a generator, using the energy to charge the battery. This allows for better fuel efficiency without compromising performance.
HEVs cannot be plugged into an off-board power source to charge the battery. Instead, the battery is charged through regenerative braking and by the internal combustion engine. The extra power provided by the electric motor can allow for a smaller engine, improving fuel efficiency. HEVs can be either mild or full hybrids, with full hybrids having larger batteries and more powerful electric motors. These full hybrids can power the vehicle for short distances and at low speeds using the electric motor alone. Mild hybrids, on the other hand, cannot be driven solely on the electric motor as it does not have enough power to propel the vehicle independently.
There are different types of HEVs, including series hybrids and parallel hybrids. Series hybrids, commonly found in plug-in hybrid electric vehicles, use only the electric motor to drive the wheels. Parallel hybrids, the most common HEV design, connect the engine and the electric motor to the wheels through mechanical coupling. Both the engine and the electric motor drive the wheels directly in parallel hybrids. Power-split hybrids, such as those by Ford, General Motors, Lexus, Nissan, and Toyota, combine the benefits of both series and parallel characteristics, offering greater efficiency at varying speeds.
Some examples of HEVs include the Toyota Prius, Peugeot 508 RXH HYbrid4, Ford Escape Hybrid, and Ford Fusion Hybrid. HEVs are the most common form of hybrid vehicles, but other types include hybrid electric trucks, buses, motorboats, and aircraft.
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Fuel Cell Electric Vehicles (FCEVs) use a highly efficient electrochemical process to convert hydrogen into electricity
Fuel Cell Electric Vehicles (FCEVs) are powered by hydrogen gas, which undergoes a chemical reaction to power an electric motor. This process involves using fuel cell technology to generate the electricity required to run the vehicle. FCEVs are considered zero-emission vehicles as they produce no harmful tailpipe emissions, only emitting water vapour and warm air.
The hydrogen fuel is stored in a tank on board the vehicle and is used by the fuel cell to produce electricity. The chemical energy of the fuel is converted directly into electric energy through an electrochemical reaction. This reaction involves breaking down hydrogen molecules into protons and electrons with the aid of a catalyst. The electricity generated by the fuel cell, along with the energy stored in a battery pack, powers the electric traction motor, which drives the vehicle's wheels.
FCEVs are equipped with regenerative braking systems that capture the energy lost during braking and store it in a battery, increasing efficiency. The amount of energy stored on board is determined by the size of the hydrogen fuel tank, and FCEVs can typically travel over 300 miles on a full tank.
FCEVs have several advantages, including a quick fuelling time of around 5 minutes, similar to conventional internal combustion engine vehicles. They are also highly efficient, with a higher energy content by weight compared to other fuels. Additionally, as hydrogen is abundant in the universe and can be produced from various domestic resources, it has the potential to be a low-cost and sustainable fuel option.
However, one challenge with FCEVs is the limited infrastructure for fuelling and distributing hydrogen. Hydrogen can be expensive to transport and store due to its extremely light nature, requiring compression or liquification. Nevertheless, as hydrogen gains traction across different sectors, costs are expected to decrease, and infrastructure will likely develop to support the growing demand for hydrogen-powered vehicles.
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Electric micromobility devices are another type of electric vehicle
Many types of micromobility vehicles are also classified as light electric vehicles (LEVs). Examples of LEVs include electric bicycles, electric scooters, electric skateboards, electric unicycles, and onewheels. LEVs are defined by their characteristics, such as total mass and maximum power output, which differ between countries. For example, in the US, LEVs cannot be constructed to exceed 25 km/h, while in the European Union, micromobility vehicles are limited to a top speed of 45 km/h.
The first mass-produced electric velomobile was the Sinclair C5. The rise of the sharing economy and dockless sharing services has led to a massive increase in access to micromobility in many cities, with companies offering electric kick scooters (e-scooters) and electric bicycle fleets. Electric micromobility devices are typically charged using common residential 120V AC outlets, with charging times ranging from 2.5 to 9 hours depending on the device's battery capacity and charger specifications.
While micromobility vehicles have been in use since the 19th century, the 20th century saw a decline in their use as cars began to dominate in modal share in cities. However, in recent years, the availability of relatively inexpensive batteries, displays, and GPS receivers has enabled the growth of dockless electric micromobility services worldwide.
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Frequently asked questions
The 4 types of electric vehicles are Battery Electric Vehicles (BEVs), Fuel Cell Electric Vehicles (FCEVs), Hybrid Electric Vehicles (HEVs), and Plug-in Hybrid Electric Vehicles (PHEVs).
BEVs are fully electric vehicles that rely solely on electric power stored in a large battery pack. They do not have an internal combustion engine (ICE) and produce zero emissions.
FCEVs are also known as zero-emission vehicles. They use hydrogen gas to generate electricity and power an electric motor.
HEVs, also known as full hybrids, have both an engine and an electric motor. The engine gets energy from fuel, and the motor gets electricity from batteries.
PHEVs have both an engine and an electric motor. They can be powered by a rechargeable battery pack or conventional fuel.
