Battery management system for electric vehicle

Details Battery management system for electric vehicle Battery management system for electric vehicle

1995-10-19

1998-07-14

Brock, Michael

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

340636, 320 48, G01R 3136

Patent

active

057810133

ABSTRACT:
A battery monitoring routine is executed at a short period such as one minute as an initial value when a key switch is turned on to drive an electric vehicle (so that the battery is discharged). On the other hand, when the key switch is turned off to stop or park the electric vehicle so that the battery is released open from discharge, the battery monitoring routine is executed at a short period such as one minute to measure the battery data finely within a specified time such as 30 minutes, but at a long period such as one hour to measure the battery data coarsely after the specified time such as 30 minutes to save monitoring power. The battery deterioration can be monitored by measuring the restoration status of the battery after released open from discharge, for recharging or replacement of the battery.

REFERENCES:
patent: 3500167 (1970-03-01), Applegate et al.
patent: 4377787 (1983-03-01), Kikuoka et al.
patent: 4994728 (1991-02-01), Sasaki
patent: 5136246 (1992-08-01), Sakamoto
patent: 5451881 (1995-09-01), Finger

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