Browse Publications Technical Papers 2013-36-0212

Electric/Electronic Integration in Dual Fuel Engine - Diesel/Gas 2013-36-0212

The growing necessity for less carbon emission vehicles due to environmental issues and more rigid legislation rules encourages many automotive companies to develop low CO2 emission engines.
This motivation leads Mercedes-Benz do Brazil to the development of a “dual-fuel” diesel engine for buses that works with diesel and CNG (Compressed Natural Gas) fuel.
One of the challenges for the development of this kind of engine is the electric/electronic integration between the diesel engine ECU (Electronic Control Units) and the CNG system ECU that coordinates the engine gas injectors.
With the combination of different CAN (Controlled Area Network) protocols, the creation of a specific communication matrix between the two ECUs and the OBD premises fulfilled, the dual-fuel engine electronic integration is prepared to ensure the correct work of the fuel injection necessary to achieve great potential emission reduction
The work presented focuses on detailing the efforts and all the steps made in order to accomplish a successful electronic integration between two different architectures inside an already developed diesel engine.


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