Patent · US Active

Method for estimating state of health of a battery in a hybrid vehicle

US9766298B2 · kind B2 · utility

7Cited by

0References

7Claims

0Family size

Assignee

Volvo Truck Corporation · SE

Inventors

Jerker Lennevi · Lerum, SE
Tommy Hjelle · Torslanda, SE
Tobias Smidebrant · Göteborg, SE
Niklas Legnedahl · Onsala, SE
Johanna Gustafsson · Västerås, SE
Hanna Bryngelsson · Gothenburg, SE

Key dates

Filing date	May 23, 2014
Grant date	Sep 19, 2017
Priority date	—
Expiry date	Aug 21, 2034

Classification

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

Abstract

A method for estimation of state-of-health (SOH) characteristics of a battery in hybrid vehicles includes charging and discharging the battery at least one time within an upper region of a state-of-charge (SOC) window, wherein the battery; charging and discharging the battery at least one time within a lower region of the SOC window, calibrating a battery management unit included in the hybrid vehicle by using the reached levels outside the SOC window, and estimating the SOH characteristics of the battery during the charge and discharge periods by using the battery management unit.

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