Additional performance control with ethanol
The tried and tested intake manifold fuel injection technology forms the basis for flex fuel and Flexstart systems in combustion engines. The networked system components precisely detect the ethanol proportion at all times. The control unit adjusts the air-fuel ratio accordingly, in order to deliver the requested torque efficiently. Thanks to continuous further development, Bosch offers the flex fuel systems for direct injection too.
The high anti-knock properties of ethanol (110 octane) also allow vehicle manufacturers to implement a higher compression ratio and thereby a higher engine output. Ethanol achieves an additional performance increase for turbocharged engines: E85 and particularly E100 with a 7 % water content removes heat from the hot charge air upon evaporation (internal cooling).
The air-gas mixture cooled as a result has a higher substance content for the same volume. This improves the engine's volumetric efficiency, thereby additionally increasing the power output – perfect conditions for downsizing.
The tried and tested intake manifold fuel injection technology forms the basis for flex fuel and Flexstart systems in combustion engines. The networked system components precisely detect the ethanol proportion at all times. The control unit adjusts the air-fuel ratio accordingly, in order to deliver the requested torque efficiently. Thanks to continuous further development, Bosch offers the flex fuel systems for direct injection too.
The high anti-knock properties of ethanol (110 octane) also allow vehicle manufacturers to implement a higher compression ratio and thereby a higher engine output. Ethanol achieves an additional performance increase for turbocharged engines: E85 and particularly E100 with a 7 % water content removes heat from the hot charge air upon evaporation (internal cooling).
The air-gas mixture cooled as a result has a higher substance content for the same volume. This improves the engine's volumetric efficiency, thereby additionally increasing the power output – perfect conditions for downsizing.
