Powertrain mix for better air quality

Bosch solutions for better air quality

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Summary Powertrain mix for better air quality

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Summary Powertrain mix for better air quality

Information package for drivers

Summary Powertrain mix for better air quality

There is consensus in one area: emissions need to be reduced to achieve better air quality. But emissions such as particulate matter and nitrogen oxides have many origins. And road traffic is by no means the only source. The best way to achieve sustainable improvement is to reduce emissions as much as possible in all areas. For this reason, Bosch is pursuing a vision of mobility which is as emission-free as possible.

The approach taken by Bosch is to envisage mobility as a holistic concept – solutions based on automotive technology and even beyond the car. Bosch applies its extensive expertise in countering the complex causes of poor air quality. This includes continuous improvement of the existing product portfolio as well as new developments of innovative technology, digital services, and new mobility concepts.

These include technical solutions for the powertrain, braking, connectivity, and measurement of immissions which supply valuable data for optimized traffic management.

“We want to achieve the least possible or even zero air pollution caused by traffic.”

Dr. Volkmar Denner

Dr. Volkmar Denner

Chairman of the Board of Management at Robert Bosch GmbH

Reaching targets with different technologies: powertrain mix for better air quality

The future keeps all options open: each powertrain technology has its specific advantages and, when applied appropriately, can optimally enhance its strong points. Whether diesel, gasoline, natural gas or electric drive, Bosch is consciously and permanently developing its powertrain portfolio.

The goal is to better coordinate the technologies used under the hood, thereby achieving maximum efficiency and further reducing emissions.

The diesel engine: remaining a real alternative for the future

Diesel engine

Bosch has optimized the combination of diesel engine, exhaust gas recirculation and exhaust gas treatment to such an extent that nitrogen oxide emissions by diesel vehicles can be reduced significantly in daily road traffic. In test vehicles, interventions in engine management and the use of modified components in the air and exhaust gas system, among other things, have helped to realize considerably improved temperature management. This is a major contribution toward reducing the NOx emissions in road traffic to very low values.

Technological breakthrough for better air quality

Exhaust-gas treatment with double-injection technology

The gasoline engine: two systems merge to form an allrounder for lower emissions

Gasoline engine

The gasoline engine still harbors a great deal of potential.

Port fuel and direct gasoline injection are two modern fuel injection systems that are offered by Bosch. These can be combined to an innovative gasoline fuel injection system where the strengths of the respective sub-systems are mutually complementary. This gives rise to a variety of advantages in terms of fuel consumption and emissions: port fuel injection presents specific advantages during partial-load operation with low friction losses and an optimal fuel mixture, while gasoline direct injection features a considerably higher knock limit at high engine loads. In combination, these two technologies support additional reduction of particle emissions.

More on gasoline direct injection

More on gasoline port fuel injection

Electric powertrain: efficiency in all vehicle segments

Electric powertrain

Urban roads are now being used by more and more electric vehicles – from small scooters to vans, trucks and even off-highway vehicles. This will considerably relieve urban air as electric vehicles do not emit any local air pollutants.

As a driver of innovations of electric mobility, Bosch offers the 48-Volt powertrain system comprising the electric motor, control unit, battery, charger, display and app – and all specially matched for urban mobility requirements. Whether for two, three or four wheels: this system unites efficiency and driving fun right from the start.

More on electrical mobility for passenger cars

More on electrical mobility for commercial vehicles

More on electrical mobility for light e-vehicles

Fuel cell-electric drive system: Economical technology for mobility with zero local emissions

Fuel Cell

Vehicles with a fuel cell-electric powertrain can drive several hundred kilometers on a single tank – and entirely without local CO2 emissions, just like battery-electric vehicles. Bosch has already achieved great progress in the development of fuel cell-electric drives for heavy-duty commercial vehicles and will also be increasingly deploying this technology in passenger cars in the future. As a system supplier, Bosch already avails of extensive expertise in the area of fuel cell technology and offers a comprehensive portfolio of easily integrable components and fuel cell solutions for trucks and cars.

More on Fuel cell-electric drive system

Natural-gas powertrain: CNG systems for lower CO2 emissions

CNG system

Bosch is consistently further developing the natural gas powertrain for the growing number of CNG vehicles worldwide. This includes systems and components for fuel supply, fuel injection, and engine management. The comprehensive portfolio of natural gas technology can be used for many different types of gas engines and vehicles: from compact cars to heavy commercial vehicles. Compared to liquid fuels, natural gas generates significantly lower CO2 emissions and burns practically particle-free.

More on CNG systems

Green light for connected vehicles for more efficient road traffic

Green light for connected vehicles for more efficient road traffic

Stop-and-go, traffic jams and diversions – traffic invariably causes significantly more emissions than implied on paper. Connected services make driving a digital experience while also contributing toward improved air quality by helping drivers to reach their destinations without any traffic-related obstacles.

Bosch is continuously improving the range of digital mobility services and connecting vehicles to the environment. This interplay gives rise to a new breed of mobility solutions for a more environment-friendly future. Read more

Automated valet parking: directly to the parking lot

Automated valet parking

From parking search to the actual parking maneuver – automated valet parking is a convenient service offered by Bosch.

As a pioneer of automated mobility, Bosch has developed a driverless system that employs connected technology to save drivers not just the wearisome search for a parking space, but also the parking maneuver itself. This is made possible thanks to communication between Bosch technology in the parking garage infrastructure and vehicles themselves. Automated valet parking does away with unnecessary searches inside a multi-floor parking lot – the vehicle finds its own way to the vacant space.

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Connected parking search: less traffic in the city

Community-based parking: using real-time data to find a parking space faster

One-third of urban traffic is accounted for by drivers looking for parking spaces which signifies that this aspect makes a considerable contribution to emissions caused by traffic and the impact they have on air quality. With community-based parking, Bosch helps drivers to find a suitable parking space. Fewer kilometers driven also means fewer emissions released into the air. For community-based parking, the vehicle detects and measures the gaps between vehicles parked at the side of the road as they drive by. The information recorded is then sent in real time to a digital parking space map and made available to all vehicles connected to this service. In other words: free parking spaces can be approached directly without any unnecessary searching around.

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Predictive driving: reducing fuel consumption

Connected horizon

Always up to date: the connected horizon from Bosch supplies real-time data on road conditions and traffic volumes.

The connected horizon from Bosch supports drivers by providing up-to-date information on the route ahead, thereby ensuring safe, assured and more economical driving. This connected driver assistance system links static and dynamic map data with the latest traffic information and proactively provides the driver with information relating to speed limits, bends in the road, danger spots, and the tail end of traffic jams. With this information advantage, drivers can adapt their driving style accordingly in order to minimize the risk of accidents or reduce fuel consumption.

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Bosch brakes for the environment: less brake dust in road traffic

Bosch brakes for the environment

Air quality in urban environments is also impaired by road and tire wear particles as well as brake dust. This means that emissions not only arise during acceleration but also while braking. Accordingly, around half of the particle emissions in road traffic are attributable to wear by brakes, tires, the clutch, and the road surface, approximately half of which is in turn accounted for by brake dust*.

For this reason, Bosch is also focusing on the braking process in an effort to enable more environmentally-friendly driving right across the board. The innovative iDisc brake disc and regenerative braking systems in hybrid and electric vehicles contribute toward improving the quality of air in urban environments.

*Source: Environmental science and pollution research international, 2015

iDisc brake disc

iDisc brake disc

With the Bosch iDisc, the amount of particulate matter generated during braking is reduced by up to 90% compared to conventional brake discs.

With its iDisc brake disc, Bosch helps to alleviate the particulate-emission problem in urban environments. The iDisc generates up to 90% less brake dust than a standard brake disc. The coating of the iDisc also reduces brake disc wear and improves operating safety. The iDisc is suitable for all types of vehicles – from passenger cars to commercial vehicles, whether with combustion engines or electrified.

For electric vehicles, the iDisc represents an additional advantage: these vehicles use the electric generator brake to decelerate the vehicle and for recovering energy (recuperation). As a result, the friction brake is applied less often, which can lead to rust formation on conventional brake discs. The iDisc is not affected by this problem as its coating does not rust.

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Regenerative braking systems

Regenerative braking systems

Regenerative braking systems permit energy recovery, thereby increasing the range of electric vehicles.

The regenerative braking systems from Bosch are of key significance for hybrid and electric vehicles. Bosch therefore improves the range of electric vehicles and reduces emissions of brake dust in vacuum-independent regenerative brake systems by more than 95% at the same time. During emission-free generator braking, the electric motor recovers some of the energy which is then stored in a high-voltage battery for reuse. With a conventional braking system, much of the kinetic energy is released unused into the environment.

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