SYSTEM AND METHOD FOR MONITORING A VEHICLE BATTERY

Title:

SYSTEM AND METHOD FOR MONITORING A VEHICLE BATTERY

Document Type and Number:

WIPO Patent Application WO2000004620

Kind Code:

A3

Abstract:

A vehicle battery (108) monitoring system and method that computes (100) dynamic internal and polarization resistences (IR and PR) from battery voltage (112) and current drain (110) during engine start. The quiescent voltage (QV) at a current drain of from O to a predetermined amount is also measured (S131) and the battery state-of-charge is computed (S133). Also predicted is the time during which the battery can still start the engine (S330-S340), and the minimum ambient temperature at which it will be able to do so (S420, S424, S426). Appropriate messages can be displayed to alert the driver of any potential problems (S239, S243, S273, S422).

More Like This:

JP2005539354	Systems and methods for controlling fuel cell test equipment
JP2008215853	CELL VOLTAGE DETECTION CIRCUIT AND BATTERY-DRIVEN APPARATUS
JP2009097954	BATTERY PACK AND RESIDUAL CAPACITY CORRECTION METHOD OF SECONDARY BATTERY

Inventors:

GOLLOMP BERNARD P
PALANISAMY THIRUMALAI G
VERNICK DOUGLAS

Application Number:

PCT/US1999/016360

Publication Date:

March 23, 2000

Filing Date:

July 20, 1999

Export Citation:

Click for automatic bibliography generation Help

Assignee:

ALLIED SIGNAL INC (US)

International Classes:

G01R31/36; G01R27/26; G01R31/00; H01M10/48; (IPC1-7): G01R27/26; H01M10/46

Foreign References:

US5672951A	1997-09-30
US5608050A	1997-03-04
US5721688A	1998-02-24

Other References: