Title:
絶縁抵抗低下検出装置
Document Type and Number:
Japanese Patent JP5716601
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an insulation resistance deterioration detecting device that has reduced a cost and a circuit mounting area and is capable of performing self diagnosis.SOLUTION: An insulation resistance deterioration detecting device according to the present embodiment includes a high-voltage battery B1, and a voltage converter 11 for converting the voltage of the high-voltage battery B1, and detects deterioration of insulation resistance Ri of a power-supply unit. The insulation resistance deterioration detecting device includes an insulation resistance detecting part 70 that detects the insulation resistance Ri between a housing of a vehicle and a part where a power is supplied by the high-voltage battery B1, and a control device 30 for performing a control for a self diagnosis of the insulation resistance detecting part 70. When executing the self diagnosis, the control device 30 generates voltage fluctuation to a voltage converter 11 and executes the self diagnosis of the insulation resistance detecting part 70 on the basis of a change in a detection result of the insulation resistance detecting part 70 for the presence/absence of the voltage fluctuation.
Inventors:
Matsumura Mitsuyori
Application Number:
JP2011169280A
Publication Date:
May 13, 2015
Filing Date:
August 02, 2011
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
G01R31/02; B60L3/00; H02H3/00; H02H3/05
Domestic Patent References:
| JP2008016179A1 |
Attorney, Agent or Firm:
Fukami patent office