During the last years, diesel engines are becoming increasingly complex, coupling several hardware components in order to increase fuel economy and to reduce emissions. A big effort from a control and calibration point of view is required in order to optimize the coordination among them....
In simulations and in tests with an inline-four diesel on a dyno, BorgWarner delivered engine-out performance close to the coming Euro 6 standard while under high load on the NEDC cycle. We maintained HP EGR through the city cycle—the first 800 seconds of the NEDC&mash; and at the point...
In the diesel industry, most modern engines are turbocharged, meaning that the exhaust and intake systems are pressurized. For best fuel efficiency, it is desirable to have intake system pressure higher than exhaust system pressure, commonly termed “positive engine pressure ratio”. This creates pos...
This applies to both diesel and gasoline engines. The exhaust gas recirculation system helps to reduce nitrogen oxide emissions. On gasoline engines, the system also reduces fuel consumption when the engine is operated under partial load.If the combustion temperature is high, nitrogen oxides are ...
The proposed control approach has been validated through small diesel engine dyno and vehicle activities. Transient test bench maneuvers show that the control is able to coordinate the actuators in order to fulfill the targets and to guarantee similar performances in different operating points. In ...