| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To sustain power supply to a low-voltage load, even if run is disabled due to faults, while suppressing drop in the capacity of the high-voltage battery of an electric vehicle during parking. <P>SOLUTION: In an ACC power supply mode, when it is determined in step S3 that a history of fault disabling run remains, an ACC load power supply stop function is disabled in step S4. When it is determined in step S5 that the voltage of a low-voltage battery is not more than a charge start voltage, if it is determined in step S6 that the ACC load power supply stop function is not effective, power supply to the ACC load is kept intact; in step S8, a DCDC converter is started; in step S9, charging a low-voltage battery is started. Meanwhile when it is determined in step S6 that the ACC load power supply stop function is effective, charging the low-voltage battery is not performed; and power supply to the ACC load is stopped. The preset invention is applicable to, for example, electrical systems of electric vehicles. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
