发明名称 BATTERY VOLTAGE VALUE PREDICTION METHOD AND VEHICLE POWER SUPPLY CONTROL APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide a battery voltage value prediction method which can predict the voltage value of a battery with small errors, when the battery is discharged. SOLUTION: When a substantially constant current is supplied to a load installed in a vehicle from the battery, the time-series voltage value of the battery is predicted, on the basis of the detected voltage value (S1) and the output current value (S5) of the battery. When a current starts to be supplied from the battery (S7), the current value is detected (S5), and on the basis of the detected current value, the time required until the voltage value reaches a minimum by the concentration polarization of the battery is calculated (S9); changes in the battery voltage value until the lapse of the calculated time required are approximated to an exponential function, on the basis of the detected current value (S15); and changes in the battery voltage value after the lapse of the time required are approximated to a linear function, on the basis of the detected current value and the rated capacity of the battery (S17), thereby predicting the time-series voltage value of the battery. COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2010223612(A) 申请公布日期 2010.10.07
申请号 JP20090068407 申请日期 2009.03.19
申请人 AUTONETWORKS TECHNOLOGIES LTD;SUMITOMO WIRING SYST LTD;SUMITOMO ELECTRIC IND LTD 发明人 MATSUURA TAKAHIRO
分类号 G01R31/36;B60R16/02;H01M10/48 主分类号 G01R31/36
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