To improve charging efficiency in normal charging without restricting an operation of a low voltage load in an electric vehicle during the normal charging.
During charging of a high voltage battery in the vehicle, if the normal charging is determined in a step S1, and if it is determined that the load whose mode is to be switched is not operated in a step S2, a process for entering a power saving mode is implemented. A voltage of the high voltage battery is reduced. An operation mode of a DC/DC converter for supplying the high voltage to a low voltage battery and the low voltage load is set to the power saving mode in which a power consumption is lower than a normal mode. Then, if it is determined that an operation for activating the load whose mode is to be switched is implemented in a step S5, the operation mode of the DC/DC converter is changed to the normal mode. The technology can be employed to the DC/DC converter for the electric vehicle.
IDO YUSAKU
OMOTO YASUMICHI
HANATANI MASAYUKI
TAMANAWA HAJIME
| JP2009027774A | 2009-02-05 | |||
| JP2010136495A | 2010-06-17 | |||
| JP2007068349A | 2007-03-15 | |||
| JP2010200562A | 2010-09-09 | |||
| JP2009303347A | 2009-12-24 | |||
| JP2007020315A | 2007-01-25 | |||
| JP2009027774A | 2009-02-05 | |||
| JP2010136495A | 2010-06-17 | |||
| JP2007068349A | 2007-03-15 | |||
| JP2010200562A | 2010-09-09 | |||
| JP2009303347A | 2009-12-24 | |||
| JP2007020315A | 2007-01-25 |
| US20110187184A1 | 2011-08-04 | |||
| WO2011016135A1 | 2011-02-10 | |||
| WO2011016134A1 | 2011-02-10 | |||
| US20110187184A1 | 2011-08-04 | |||
| WO2011016135A1 | 2011-02-10 |
西川 孝
Next Patent: WIRING HARNESS FIXTURE STRUCTURE