| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide charging and discharging control method and system of alkali storage battery which can charge and discharge an alkali storage battery safely by sensing the internal pressure of the alkali storage battery accurately regardless of variation of ambient temperature and controlling the charging and discharging. <P>SOLUTION: A strain sensor 3 which detects and outputs the strain value of a main power supply 1 corresponding to the internal pressure (state) thereof is attached to the side face of the main power supply 1 consisting of an alkali storage battery. An output value from the strain sensor 3, i.e. an strain value, is converted by a voltage sensor 2 into a voltage and output to a control unit 5. The control unit 5 sets an appropriate charging current value or discharging current value according to variation in the strain value of the voltage sensor 2 from the initial value. Based on the current value thus set, a current control unit 6 changes the charge and discharge currents incident to charging and discharging of the main power supply 1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
