Search Results

A modernization of tools and processes is vital to develop more innovative products that will integrate complex technologies and comply with ever stricter standards. The upcoming Euro 6 and Euro 7, the European emission standards that define acceptable exhaust emissions limits for new vehicles have increased the workload of engine design and control design engineers. They now have to integrate complex engine actuation and control systems, required to optimize engine performance, while keeping emissions at the lowest level possible. The growing number of systems driven by controls, as well as the multiple interactions between them, makes the engineering tasks more complex as engineers need to take a higher number of degrees of freedom into account. This has a direct impact on costs and times. In a quest of rationalization, the deployment of system simulation for plant modeling permits substantial gains in process efficiency all over the development process.

1D system simulation is now well deployed over the engine development cycle, especially for engine and component design. 1D codes have been used for years in two very distinct areas: for the simulation of gas dynamics in the air path in order to evaluate engine performance, and as a support for the design of the actuators allowing the connection of hydraulic and pneumatic, mechanical and electrical components. During the engine integration stage, the set-up of the actuator on the engine and the calibration of the associated control strategies are generally achieved on the test bench, which leads to a time and cost consuming process. The use of a dedicated model for the analysis and optimization of the integration of the engine actuation system represents a real added value.