Abstract: An exhaust-gas guiding housing for an exhaust-gas system of an internal combustion engine includes an air inlet housing part through which exhaust gas can flow in an exhaust-gas main flow direction and which has a housing wall surrounding a housing longitudinal axis. At least one air inlet opening is provided in at least one air inlet peripheral region of the housing wall. An inner wall is provided at an inner side of the air inlet housing part, which inner wall, together with the housing wall, defines an air inlet chamber. The at least one air inlet opening is open to the air inlet chamber. At least one air passage opening is provided in the inner wall, and/or at least one air passage opening is formed between the inner wall and the housing wall.

Abstract: An exhaust-gas guiding housing for an exhaust-gas system of an internal combustion engine includes an air inlet housing part through which exhaust gas can flow in an exhaust-gas main flow direction and which has a housing wall surrounding a housing longitudinal axis. At least one air inlet opening is provided in at least one air inlet peripheral region of the housing wall. An inner wall is provided at an inner side of the air inlet housing part, which inner wall, together with the housing wall, defines an air inlet chamber. The at least one air inlet opening is open to the air inlet chamber. At least one air passage opening is provided in the inner wall, and/or at least one air passage opening is formed between the inner wall and the housing wall.

Abstract: A method is provided for computer-supported development of an overall system including subsystems. The subsystems include real products and virtual behavior models simulated in real-time, used in phases of the right branch of the V-model, including development steps “MIL,” “SIL” and “VPIL.” Each development step includes an environment model, a reusable multiphysics model and software. The development step “HIL” also includes another physics unit simulating parts of the hardware of a product that are only virtually present. The method provides a temporally parallel and spatially divided integration, and a corresponding test, of components on various levels (e.g., the right-hand branch of a V-model performed by the system developer). Open-loop and closed-loop control functions or processes for the overall system level may already be developed, even though all of the subsystems are not yet present. No parallel systems are required where new processes are run in advance.