Gasoline engine

Mobility for tomorrow: the optimized gasoline engine

Even in the future, two thirds of all new cars worldwide will still be driven by an internal-combustion engine. This is reason enough for Bosch to make one of the world’s most important powertrains as efficient and resource-saving as possible.

Optimized gasoline powertrain: interview with Heiko Weller

Heiko Weller

People want to stay mobile, even in a future where environmental protection is crucial. The focus will continue to be on affordability and availability. All the more reason to optimize vehicles with internal-combustion engines to address both sustainability and the demand for affordable mobility.

Heiko Weller explains how hybridization and synthetic or renewable fuels can considerably reduce the amount of CO2 emitted by vehicles with internal-combustion engines and thereby make them an important component of sustainable mobility concepts.

The optimized gasoline powertrain in numbers

Improved carbon footprint

through the use of fuels generated from renewable sources


Will still be the most

widespread powertrains

in cars for many years

Flexible use

for various system pressures of up to 350 bar


A mileage of

around 200,000 km

can be reached with an average internal-combustion engine

On the road to the future: improvements to the gasoline powertrain

improvements gasoline powertrain

For gasoline engines – as for their diesel counterparts – the answer to urgent environmental concerns is an improved system approach. As an example, the use of the latest particle filters in conjunction with an innovative injection system reduces the emissions of gases and particulate matter to a fraction of the levels demanded by legislation.

As such, the influence of these vehicles on air quality is not only negligible in major conurbations.

Worldwide efficiency: gasoline port fuel injection

Gasoline port fuel injection

Gasoline port fuel injection is the world’s most widespread powertrain system for gasoline engines. This system convinces with its low cost, simplified technology, and new, innovative further developments. If gasoline port fuel injection is used in engines with an output of around 60 kW/l and downsizing concepts, it offers significant cost advantages over systems with high-pressure direct injection. Thanks to the simplicity of the low-pressure system (approx. 6 bar), the complex requirements of high-pressure control can be dispensed with, while the robust combustion process even tolerates lower-quality fuels.

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Harmonious coexistence: port fuel and direct gasoline injection

With port fuel and direct gasoline injection, Bosch combines two distinct fuel injection systems. Two usually separate approaches give rise to a combined system where the strengths of each subsystem ideally complement those of the other. The advantages are lower fuel consumption and reduced particle emissions. Depending on the driving situation, one of the two systems steps in and puts its respective strengths into practice. Port fuel injection impresses in partial-load operation, while gasoline direct injection’s higher knocking threshold makes it the more efficient choice at full loads.

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With port fuel and direct gasoline injection, Bosch combines two distinct fuel injection systems. Two usually separate approaches give rise to a combined system where the strengths of each subsystem ideally complement those of the other. The advantages are lower fuel consumption and reduced particle emissions. Depending on the driving situation, one of the two systems steps in and puts its respective strengths into practice. Port fuel injection impresses in partial-load operation, while gasoline direct injection’s higher knocking threshold makes it the more efficient choice at full loads.

Learn more

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