Classification of Hybrid Car Types in the Automotive Industry

In recent years, eco-friendly vehicle technology has continued to evolve. One of the most popular innovations is the hybrid car. It’s no wonder that people are now interested in learning about hybrid cars and how they work.

In general, hybrid vehicles are designed to improve fuel efficiency while reducing carbon emissions. This technology combines an internal combustion engine with an electric motor, allowing the vehicle to operate more efficiently under various driving conditions.

If you want to understand the different types of hybrid cars deeply, here's everything you need to know.

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Definition of Hybrid Car

A hybrid car is a vehicle that uses two or more power sources, typically a combination of a gasoline (or diesel) engine and an electric motor. The goal is to improve fuel efficiency and reduce exhaust emissions.

This combination of energy sources can deliver higher efficiency compared to conventional engines.

Today, Indonesia offers a wide range of hybrid vehicles, in line with the national target to reduce greenhouse gas emissions by 31.89% independently and up to 43.2% with international support by 2030.

The Difference Between Hybrid Cars and Electric Cars

Electric cars run entirely on electricity stored in a battery. These vehicles typically have large battery capacities, allowing them to travel hundreds of miles on a single charge.

As a result, EVs produce zero tailpipe emissions, making them more eco-friendly than hybrids. However, energy consumption increases at higher speeds, meaning the battery can drain faster during high-speed driving.

This is where hybrid cars have an advantage. They use both a gasoline engine and an electric motor, switching between the two as needed. When the battery runs low, the gasoline engine takes over, keeping the vehicle running without interruption.

Types of Hybrid Cars in the Market and How They Work

In general, there are three main types of hybrid cars commonly available.

1. Full Hybrid

Full hybrid systems are divided into several types: parallel hybrid, series hybrid, and series-parallel hybrid.

In a parallel hybrid, both the gasoline engine and electric motor can power the wheels. Either separately or together. These power sources work simultaneously and cannot be fully separated.

At lower speeds, the gasoline engine can also help recharge the battery while driving.

Here's how they work:

• Parallel Hybrid: The engine and electric motor share the workload to drive the wheels, with the engine remaining active. 
• Series Hybrid: The engine generates electricity to charge the battery, while the electric motor drives the wheels. 
  
  

2. Mild Hybrid

A mild hybrid uses a smaller auxiliary battery to support the engine, particularly during initial acceleration when more power is needed.

Unlike full hybrids, this system does not rely on a standalone electric motor to drive the wheels. Instead, it uses an integrated starter-generator system connected to the engine.

In simple terms, the system assists the gasoline engine by providing extra power during acceleration, helping improve overall fuel efficiency.

3. Plug-in Hybrid (PHEV)

Plug-in hybrid vehicles (PHEVs) operate similarly to full hybrids but offer a longer electric-only driving range due to a larger battery capacity.

The key difference is that PHEVs can be recharged externally by plugging into a home charger or a public charging station.

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Key Components of a Hybrid Car

Here are the main components that allow hybrid vehicles to operate effectively.

1. Battery: Stores energy used by the electric motor, typically in the form of a high-voltage traction battery. 

2. Internal Combustion Engine (ICE): Uses fuel (such as gasoline) to generate power through combustion. 

3. Electric Traction Motor: Uses energy from the battery to drive the wheels, especially at low speeds or under light loads. 

4. Electric Generator: Converts kinetic energy from braking into electrical energy (regenerative braking).

Benefit of Hybrid Cars

Beyond being eco-friendly and efficient, hybrid cars have additional benefits, such as:

1. Better Fuel Efficiency

Hybrid vehicles reduce reliance on the gasoline engine, especially in stop-and-go traffic or at low speeds, resulting in lower fuel consumption.

2. Lower Emissions

Since part of the power comes from an electric motor, hybrid cars produce fewer emissions and help reduce air pollution.

3. Lower Operating Costs

Although the upfront cost of a hybrid car may be higher, fuel savings and reduced engine usage can lower long-term operating costs. Regenerative braking also helps extend brake life.

4. Smoother and Quieter Driving Experience

Electric motors operate quietly and provide smooth acceleration. The transition between the gasoline engine and electric motor is seamless, creating a more comfortable driving experience.

5. No Need for External Charging (Non-Plug-in Hybrids)

For standard hybrid vehicles, the battery charges automatically during driving, especially during braking or when the engine is running. This eliminates the need for an external charging infrastructure

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Hybrid Cars as a Step Toward Greener Mobility

Understanding the different types of hybrid cars helps you see how automotive technology is evolving toward more efficient and eco-friendly transportation.

From mild hybrids to full hybrids and plug-in hybrids, each type offers unique characteristics and operating systems. Together, they enable vehicles to use energy more efficiently while reducing carbon emissions.

As electrified vehicles continue to develop, hybrid cars represent an important step toward a more sustainable future of mobility.

You can also explore Astra's innovations in automotive technology, energy efficiency, and sustainability strategies through the Astra Sustainability Report, which highlights ongoing efforts to support greener mobility.