Automating model-based design optimization
For the development of its propulsion systems, Punch Powertrain aims at creating the most sustainable design at an affordable cost. In this process, the design must fulfil all requirements set by the customer, for example in terms of power density, efficiency and NVH performance. As a result, the e-motor design engineer faces a variety of design choices related to the geometric shape of the motor and the selection of materials, selecting the most suitable e-motor design from millions of possible combinations.
In order to speed up the search for the best overall designs, Punch Powertrain has created a proprietary, model-based platform that links all calculation models for efficiency, cost, performance, structural integrity, NVH performance and thermal response to advanced optimization software. Today, this platform is applied in the design of e-motors for a crucial part of the company’s portfolio: electric propulsion systems. Using the platform, the engineer is alleviated by taking away the vast majority of manual calculation and optimisation work, resulting in a rapid generation of highly optimized designs.