| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electromotive vehicle allowing the degraded state of an electricity storage device for auxiliaries to be detected with high accuracy. <P>SOLUTION: Electric power for vehicle drive is stored in an electricity storage device B1. Electric power for auxiliaries is stored in an electricity storage device B2. An inverter 60 for charging is structured so that the storage device B1 can be charged from an external power supply 90. A DC/DC converter 40 is structured so that electric power can be supplied from the storage device B1 to the storage device B2. The DC/DC converter 40 is on-off operated by an ECU 70 while the storage device B1 is charged with electricity from the power supply 90 by means of the inverter 60. By the ECU 70, the internal resistance of the storage device B2 is identified based on the then voltage VB and charge/discharge current IB of the storage device B2, and the degraded state of the storage device B2 is detected based on the results of the identification. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
