Browse Publications Technical Papers 2008-28-0003

Consistent Development Methodology for hybrid AWD powertrains 2008-28-0003

Highest grow or highest attention in vehicles power-train is related to AWD and hybrid concepts. Some of the targets for these technologies are conflicting, others are very similar, and sometimes it depends on the application. In a first look it is very questionable weather these technologies should be combined. But it can be shown, that the combination makes quite some sense. It is possible to get the superior performance and enhance safety combined with reasonable fuel economy by hybridizing an AWD powertrain.
From simulation to testing, efficient processes and a consistent development platform is key to fulfill all the development tasks in the environment of this increased complexity. Simulation and benchmark activities are valuable in the early project phases to define the targets and create the specifications. In the virtual world the system selection is a major task. To get appropriate results software modules are incorporated in the simulation environment. They can be re-utilized in the later development tasks acting as base for the control as well as simulation modules during Hardware-in-the-Loop and component testing. The possibility to carry these models through the entire development process along the V-model is shown using examples for the specific work-packages along the development process. A consistent development methodology allows an efficient development with respect to cost and timing of the complex systems of AWD and hybrid powertrains.


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