Title:
ELECTRIC VEHICLE
Document Type and Number:
Japanese Patent JP2016082846
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To determine abnormality of a backup power supply device for use in supplying power to a discharge control part that discharges a charge on a smoothing capacitor when a collision is detected.SOLUTION: An input voltage Va of an MGECU is detected when a backup power supply device is not operated and stored as a voltage Va(1) (S100), and a voltage produced by adding a given voltage Vset to the voltage Va(1) is used as a target voltage Va* to operate a backup power supply device 60 (S120, S130). In this state, an input voltage Va of an MGECU 52 is detected and stored as a voltage Va(2) (S150), and whether or not the voltage Va(2) is within a normal range is determined (S160). If the voltage is within the normal range, the backup power supply device is determined to be normal (S170), whereas if outside the normal range, it is determined that abnormality has occurred to the backup power supply device (S180). This makes it possible to determine abnormality even in a normal time where no collision of the vehicle is detected.SELECTED DRAWING: Figure 3
Inventors:
KANZAKI TAKAO
Application Number:
JP2014215462A
Publication Date:
May 16, 2016
Filing Date:
October 22, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B60L3/04; H02M3/28
Domestic Patent References:
| JP2011259517A | 2011-12-22 | |||
| JP2011254620A | 2011-12-15 | |||
| JP2012085416A | 2012-04-26 | |||
| JP2008172966A | 2008-07-24 | |||
| JP2008253064A | 2008-10-16 |
Foreign References:
| US20130116875A1 | 2013-05-09 |
Attorney, Agent or Firm:
Aitec International Patent Office