Vehicle Product Family Design Based on Multidisciplinary Design Optimization

For the purpose of enhanced performance of automotive product platforms and product families as well as maintaining high development efficiency, a product family optimization design method that combines shared variable decision-making and multidisciplinary design optimization (MDO) was proposed.Firstly, the basic concepts related to product family design optimization were clarified.Then, the mathematical description and MDO model of the product family optimization problem were established, and an improved product family design process was elaborated as follows.Ultimately, the effectiveness and feasibility of the proposed optimization method was proven through the application to the chassis product family optimization problem of an automotive product platform.The results show that this proposed method can maximize the generalization rate of vehicle parts and components under the premise of ensuring key performance, handle collaborative optimization of multi-product and multi-object, and give full play to the advantages of product platforms, compared to Non-platform development.