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Bosch Mobility
The diesel engine remains an indispensable cornerstone for heavy-duty freight transport and demanding off-highway applications. To meet increasing demands for economic viability and eco-friendliness, advanced injection technology is crucial. The sophisticated common-rail system forms the technological basis for metering fuel with high precision and extreme efficiency.
Our developments range from flexible solenoid and piezo systems to modular concepts for trucks and robust technologies for heavy large engines. We also serve specific global markets with proven unit-pump as well as mechanical systems. Through this technological breadth, we increase the efficiency and reliability of commercial vehicles worldwide.
The efficiency of diesel engines has been steadily increased over decades of further development and refinement. No internal-combustion engine is used in such a diverse range of applications as the diesel engine. The demands placed on the injection systems are correspondingly high. This is where Bosch can make a difference,
whether for higher pressures, faster switching times, or flexible adaptation of the injection process to the operating state.Bosch is committed to the continued development of fuel injection to produce common-rail systems that deliver the very highest performance while helping owners comply with current legislation at the same time.
Measuring emissions under real operating conditions (real driving emissions or “RDE” for short) makes a major contribution to improving air quality. This also enables the discrepancies between emissions values recorded on a test bench and those resulting from driving profiles on the road to be reduced.
This is because faster acceleration, inclines, stop-and-go traffic, and higher speeds alike are all taken into consideration. Bosch has actively supported the introduction of RDE measurements in recent years.
Cold starts are a challenge, which is why developers at Bosch have dedicated so much attention to them. A well-coordinated interplay between engine and exhaust-gas treatment is essential: if the exhaust-gas treatment system is not yet achieving high conversion rates, the engine assists both by increasing the exhaust-gas temperature and with lower raw NOx emissions.
Precise models in the ECU software ensure that measures, particularly those requiring greater amounts of fuel, are only implemented in a targeted manner when they are really necessary.
Diesel-powered cars equipped with Bosch components achieve a NOx value of 13 mg/km thanks to a number of elements: an improved injection system (e.g., with needle-closing control) lowers tolerances. The engine assists exhaust-gas treatment by increasing the exhaust-gas temperature and keeping raw
NOx emissions low. A highly dynamic turbocharger assists in enabling transient driving with exhaust-gas recirculation up to the full load. A double-injection SCR system that doses AdBlue® at two points helps to achieve a further reduction in emissions.
Are you interested in our solutions? Then write us a message. Our sales team will be happy to help you.
