公开(公告)号：US09651624B2

公开(公告)日：2017-05-16

申请号：US13800366

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

Inventor： Krishnakumar Gopalakrishnan ,  Eric I Mikuteit

IPC: G01R31/36

CPC classification number: G01R31/3624 ,  G01R31/362

Abstract: The present disclosure includes systems and methods for state of charge estimation. In one embodiment, the present disclosure includes a method comprising receiving a voltage corresponding to a state of charge of a battery, converting the voltage to an estimated state of charge using different algorithms across different ranges. In another embodiment, an offset state of charge is applied to a first state of charge to produce an estimated state of charge.

公开(公告)号：US20140172333A1

公开(公告)日：2014-06-19

申请号：US13800366

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Krishnakumar Gopalakrishnan ,  Eric I Mikuteit

IPC: G01R31/36

CPC classification number: G01R31/3624 ,  G01R31/362

Abstract: The present disclosure includes systems and methods for state of charge estimation. In one embodiment, the present disclosure includes a method comprising receiving a voltage corresponding to a state of charge of a battery, converting the voltage to an estimated state of charge using different algorithms across different ranges. In another embodiment, an offset state of charge is applied to a first state of charge to produce an estimated state of charge.

Abstract translation: 本公开包括用于充电状态估计的系统和方法。 在一个实施例中，本公开包括一种方法，包括接收对应于电池的充电状态的电压，使用不同范围内的不同算法将电压转换成估计的电荷状态。 在另一个实施例中，电荷的偏移状态被施加到第一充电状态以产生估计的充电状态。

公开(公告)号：US20150046105A1

公开(公告)日：2015-02-12

申请号：US14253415

申请日：2014-04-15

Applicant: QUALCOMM Incorporated

Inventor： Ranjit Kumar Guntreddi ,  Krishnakumar Gopalakrishnan ,  Justin T Blackman ,  Eric I Mikuteit ,  Todd R Sutton

IPC: G01R31/36

CPC classification number: G01R31/3835 ,  G01R31/367

Abstract: In one embodiment, a circuit comprises a sensor providing a digital signal responsive to a battery voltage on a battery terminal of a battery. The sensor can be an analog-to-digital convertor. A processor is coupled to the sensor and is configured to calculate a state of charge of the battery based on the digital signal at a first time, the digital signal at a second time, and a stored battery profile of open circuit voltage as a function of state of charge at the second time.

Abstract translation: 在一个实施例中，电路包括响应于电池的电池端子上的电池电压而提供数字信号的传感器。 传感器可以是模数转换器。 处理器耦合到传感器，并且被配置为基于第一时间的数字信号，第二时间的数字信号和作为开关电路的功能的存储的开路电压的电池轮廓来计算电池的充电状态 第二次充电状态。