Car manufacturers are facing various and sometimes contradicting constraints such as energy efficiency, high performance, driving comfort, reliability, and safety. In a global context, they must also adapt driveline designs to different markets. Therefore, Renault must handle a variety of powertrain designs. Moreover, due to increasingly intelligent systems, mechanical and controls system design cycles are more and more linked. A common system mock-up is needed.
Renault has implemented model-based systems engineering (MBSE) to manage these challenges as well as to reduce development cycle and costs. With MBSE, design and integration problems are solved earlier, the number of prototypes and test benches are reduced, and cross-team collaboration is improved. The MBSE approach allows Renault to evaluate, throughout the development phases, the key attributes of the complete vehicle including the engine, transmission, actuators, and chassis.
Renault recently extended its MBSE approach to include a new dual-clutch transmission (DCT) and controls strategies validation and optimization.
The DCT, developed by Getrag, is being integrated into C-segment vehicles such as the Renault Mégane or Scenic, and will be widely applied to other vehicle ranges.