公开(公告)号：US20150349385A1

公开(公告)日：2015-12-03

申请号：US14672474

申请日：2015-03-30

Applicant: Medtronic, Inc.

Inventor： Chao X. Hu ,  Gaurav Jain

IPC: H01M10/42 ,  H01M10/0525 ,  G01R31/36 ,  H01M10/06 ,  H01M10/054 ,  H01M10/30 ,  H01M10/052

CPC classification number: G01R31/367 ,  G01R31/382 ,  G01R31/3835 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/06 ,  H01M10/30 ,  H01M10/345 ,  H01M10/48

Abstract: System and method for predicting the remaining useful life (RUL) of a rechargeable battery, such as a lithium-ion rechargeable battery. In a method, the capacity of the battery is determined based on at least changes of state of charge values estimated at a first and second time and a net charge flow of the battery and applying a particle filter to a capacity degradation formula using the determined capacity to form a capacity degradation model and determining the RUL using the capacity degradation model using a pre-defined end of service threshold. The system and method may be used to predict the RUL of a rechargeable battery in an implantable medical device.

Abstract translation: 用于预测可再充电电池（例如锂离子可再充电电池）的剩余使用寿命（RUL）的系统和方法。 在一种方法中，基于至少在第一次和第二次估计的电荷状态值的变化和电池的净电​​荷流量来确定电池的容量，并且使用确定的容量将粒子滤波器应用于容量降低公式 以形成容量降级模型，并使用预定义的服务结束阈值来确定使用容量降级模型的RUL。 系统和方法可用于预测可植入医疗装置中的可再充电电池的RUL。