You can read my previous post on how you can achieve simulation-driven design faster with integrated 1D and 3D simulation<\/A>. Now let\u2019s look at how Simcenter Amesim<\/A> 1D simulation helps automotive engineers manage energy in cars and discover how it complements NX CAE<\/A> 3D simulation with regard to closed-loop systems driven simulation<\/A>. <\/P><\/p>\n Consumer demand and government regulations drive automotive manufacturers to continuously reduce vehicle emissions and improve fuel economy. Given the rising cost of oil and the threat of global warming, it\u2019s no wonder there\u2019s a push for cleaner, more fuel efficient cars.<\/P><\/p>\n Automotive manufacturers GM, Ford and Chrysler have all stated that Simcenter\u2019 capabilities for vehicle thermal system analysis are essential to meet future fuel economy standards, according to CIMData<\/A>.<\/P><\/p>\n But fuel economy<\/A> is just one aspect of energy management in a car. \u201cIt\u2019s quite easy to improve fuel economy. The challenge is to keep the same thermal comfort, drivability, NVH,\u201d says Benoit Honel, senior product manager for Simcenter Amesim<\/A> and expert in thermal management. \u201cWhen you improve fuel economy, it affects all of these things. You have to balance these changes,\u201d Benoit adds.<\/P><\/p>\n \u201cYou have energy in different domains of physics: mechanical, thermal<\/A>, hydraulic<\/A> in some cases, and electrical,\u201d Benoit explains. A car comprises subsystems that use these various types of energy. As vehicle complexity increases, so too does the number of subsystems. In the end, they must all function together as one, which is where Imagine.Lab comes in. \u201cWe can put all these subsystems together. That is a key aspect to our software,\u201d Benoit says.<\/P><\/p>\n Since simulation models in Amesim can be used in early concepting when there is not yet a detailed 3D design available, validation can occur sooner and simulation drives the design process. As the system architecture matures, the insights generated with 1D Amesim simulations help define the correct inputs and parameters for 3D NX CAE simulations. Co-simulations using both 1D and 3D representations can help engineers use the right level of model fidelity to understand and optimize complete system behavior.<\/P><\/p>\n Amesim\u2019s 1D simulation coupled with the powerful 3D simulation capabilities of NX CAE and tools such as Synchronous Technology<\/A>, which makes changing designs fast and simple, gives you the power to improve products while shortening development time. <\/P><\/p>\n<\/span>Amesim accomplishes multi-attribute balancing by allowing engineers to analyze various types of simulations in the same environment.<\/P><\/p>\n