基于整车平台的动力电池平台化研究

Study on Platformization of Power Batteries Based on Vehicle Platforms

整车以及对应系统的平台化开发是新能源汽车行业的共识和重要的技术趋势,有利于统筹各项目的开发,提升系统共用性,节约成本。基于整车平台的电池系统平台化开发需要明确整车与电池的相关变量,主要包括整车空间、整备质量、续航、电耗、动力性,以及电池尺寸、质量、电量、功率性能。本文以某混动平台的电池系统开发为例,通过各变量的分布与边界条件求解出包含2~3款电芯的平台化方案,通过每款电芯串联节数和电池包Y向尺寸的带宽设计来兼容16款平台车型,为后续产业界各平台的电池方案开发提供了基础的策略参考。

The platformization development of vehicles and the corresponding systems is the consensus and important technology trend of the new energy vehicle industry,which is beneficial for planning each project systematically,sharing more systems and saving the cost.It is necessary for platformization development of battery systems based on vehicle platforms to clarify the relevant variables of vehicles and batteries,which mainly include the space,the weight,the mileage,the power consumption,the power performance of the vehicle,and the size,the weight,the energy,the power property of the battery.In this paper,the development of the battery system of a certain hybrid-vehicle platform is chosen as the case,where the platform solution including two or three types of cells is proposed via summarizing the distribution and boundary of each variable.Moreover,the bandwidth design of the series of the cells and the Y dimension of the pack is also proposed to make it compatible with 16 vehicle types.This study provides the basic reference of strategies for the development of battery solutions for various vehicle platforms of the industry in the future.