Patent · US Active

Fault tolerant voltage measurement method

US10903532B2 · kind B2 · utility

1Cited by

3References

15Claims

0Family size

Assignee

THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

Chris Mi · Detroit, US
Bing Xia · Fremont, US

Key dates

Filing date	Aug 4, 2016
Grant date	Jan 26, 2021
Priority date	—
Expiry date	Dec 6, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A fault tolerant voltage measurement method for battery management systems is proposed for reliable and prompt cell fault and sensor fault detection. The key of the method is that it correlates one voltage sensor reading with multiple cell voltages and vice versa. When a cell fault occurs, fault readings will be revealed by multiple voltage sensor readings. Similarly, when a sensor fault occurs, multiple cell voltages will be influenced. Compared with the traditional one-to-one correspondence voltage measurement, the proposed method increases the credibility of sensor/cell fault decisions. Furthermore, it does not increase the hardware cost, and is easy to be adopted in real applications.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.