Method of calculating SOC of battery for prevention of...

Details Method of calculating SOC of battery for prevention of... Method of calculating SOC of battery for prevention of...

2008-03-18

2008-03-18

Vu, Bao Q. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S134000, C320S136000

Reexamination Certificate

active

11299366

ABSTRACT:
Disclosed herein is a method of calculating the SOC of a battery. The method includes the steps of receiving information about a previous SOC mode and operation time in the mode from memory of a battery controller after startup of the vehicle; calculating a battery SOC data value using one of respective different reference capacities depending on whether a normal SOC preservation mode, a high SOC range expansion mode, or a low SOC range expansion mode using the battery controller and transmitting the battery SOC data value to a vehicle controller; and determining whether conditions for entering a next SOC mode is met after calculation of an actual SOC value of the battery in the normal SOC preservation mode, the high SOC range expansion mode, or the low SOC range expansion mode.

REFERENCES:
patent: 6608482 (2003-08-01), Sakai et al.
patent: 6700383 (2004-03-01), Kimura et al.
patent: 2001/0035742 (2001-11-01), Ito et al.
patent: 2006/0152195 (2006-07-01), Ishishita
patent: 11-146505 (1999-05-01), None
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patent: 2001-314041 (2001-11-01), None
patent: 2003-047108 (2003-02-01), None
patent: 2004166350 (2004-06-01), None
patent: 2004-286642 (2004-10-01), None
The Abstract and an English translation of JP 2000175306 A, is attached.

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