Title:
ELECTRIC VEHICLE
Document Type and Number:
Japanese Patent JP2015162977
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress incorrectly detecting insulation degradation caused by retention of coolant in a compressor as insulation degradation at a part on a battery side instead of an air conditioning inverter.SOLUTION: When insulation degradation on an HV battery side of a step-up circuit is detected (step S100), if voltage difference of a battery voltage system power line which is a power line on the HV battery side of the step-up circuit is a determination threshold value V1 or higher, SMR check is performed (step S130, S140). Thus, it is suppressed that degradation in insulation resistance caused by retention of a coolant in an air conditioning device is incorrectly detected as insulation degradation on the HV battery side of the step-up circuit.
Inventors:
UDA TSUBASA
MATSUMURA MITSUYORI
MATSUMURA MITSUYORI
Application Number:
JP2014037172A
Publication Date:
September 07, 2015
Filing Date:
February 27, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B60L3/00; B60H1/22; B60K6/22; B60K6/445; G01R31/02
Domestic Patent References:
| JP2014036467A | 2014-02-24 | |||
| JP2011155743A | 2011-08-11 | |||
| JP2013172542A | 2013-09-02 | |||
| JP2013079897A | 2013-05-02 | |||
| JP2003244801A | 2003-08-29 | |||
| JP5012803B2 | 2012-08-29 | |||
| JP2013176178A | 2013-09-05 |
Attorney, Agent or Firm:
Aitec International Patent Office